diff --git a/.cirrus.yml b/.cirrus.yml
index 4860beb..77346a4 100644
--- a/.cirrus.yml
+++ b/.cirrus.yml
@@ -1,7 +1,7 @@
 env:
   CIRRUS_CLONE_DEPTH: 1
 
-freebsd_12_task:
+freebsd_task:
   env:
     GIT_PROVE_OPTS: "--timer --jobs 10"
     GIT_TEST_OPTS: "--no-chain-lint --no-bin-wrappers"
@@ -9,7 +9,7 @@
     DEFAULT_TEST_TARGET: prove
     DEVELOPER: 1
   freebsd_instance:
-    image_family: freebsd-12-3
+    image_family: freebsd-13-2
     memory: 2G
   install_script:
     pkg install -y gettext gmake perl5
@@ -19,4 +19,4 @@
   build_script:
     - su git -c gmake
   test_script:
-    - su git -c 'gmake test'
+    - su git -c 'gmake DEFAULT_UNIT_TEST_TARGET=unit-tests-prove test unit-tests'
diff --git a/.github/workflows/check-whitespace.yml b/.github/workflows/check-whitespace.yml
index a58e2dc..a241a63 100644
--- a/.github/workflows/check-whitespace.yml
+++ b/.github/workflows/check-whitespace.yml
@@ -19,7 +19,7 @@
   check-whitespace:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
       with:
         fetch-depth: 0
 
diff --git a/.github/workflows/coverity.yml b/.github/workflows/coverity.yml
index e5532d3..53cf12f 100644
--- a/.github/workflows/coverity.yml
+++ b/.github/workflows/coverity.yml
@@ -38,7 +38,7 @@
       COVERITY_LANGUAGE: cxx
       COVERITY_PLATFORM: overridden-below
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: install minimal Git for Windows SDK
         if: contains(matrix.os, 'windows')
         uses: git-for-windows/setup-git-for-windows-sdk@v1
@@ -98,7 +98,7 @@
       # A cache miss will add ~30s to create, but a cache hit will save minutes.
       - name: restore the Coverity Build Tool
         id: cache
-        uses: actions/cache/restore@v3
+        uses: actions/cache/restore@v4
         with:
           path: ${{ runner.temp }}/cov-analysis
           key: cov-build-${{ env.COVERITY_LANGUAGE }}-${{ env.COVERITY_PLATFORM }}-${{ steps.lookup.outputs.hash }}
@@ -141,7 +141,7 @@
           esac
       - name: cache the Coverity Build Tool
         if: steps.cache.outputs.cache-hit != 'true'
-        uses: actions/cache/save@v3
+        uses: actions/cache/save@v4
         with:
           path: ${{ runner.temp }}/cov-analysis
           key: cov-build-${{ env.COVERITY_LANGUAGE }}-${{ env.COVERITY_PLATFORM }}-${{ steps.lookup.outputs.hash }}
diff --git a/.github/workflows/l10n.yml b/.github/workflows/l10n.yml
index 6c38496..e2c3dbd 100644
--- a/.github/workflows/l10n.yml
+++ b/.github/workflows/l10n.yml
@@ -63,9 +63,10 @@
             origin \
             ${{ github.ref }} \
             $args
-      - uses: actions/setup-go@v2
+      - uses: actions/setup-go@v5
         with:
           go-version: '>=1.16'
+          cache: false
       - name: Install git-po-helper
         run: go install github.com/git-l10n/git-po-helper@main
       - name: Install other dependencies
@@ -91,14 +92,13 @@
           cat git-po-helper.out
           exit $exit_code
       - name: Create comment in pull request for report
-        uses: mshick/add-pr-comment@v1
+        uses: mshick/add-pr-comment@v2
         if: >-
           always() &&
           github.event_name == 'pull_request_target' &&
           env.COMMENT_BODY != ''
         with:
           repo-token: ${{ secrets.GITHUB_TOKEN }}
-          repo-token-user-login: 'github-actions[bot]'
           message: >
             ${{ steps.check-commits.outcome == 'failure' && 'Errors and warnings' || 'Warnings' }}
             found by [git-po-helper](https://github.com/git-l10n/git-po-helper#readme) in workflow
diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 9fdbd54..7bacb32 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -63,7 +63,7 @@
           echo "skip_concurrent=$skip_concurrent" >>$GITHUB_OUTPUT
       - name: skip if the commit or tree was already tested
         id: skip-if-redundant
-        uses: actions/github-script@v6
+        uses: actions/github-script@v7
         if: steps.check-ref.outputs.enabled == 'yes'
         with:
           github-token: ${{secrets.GITHUB_TOKEN}}
@@ -112,7 +112,7 @@
       group: windows-build-${{ github.ref }}
       cancel-in-progress: ${{ needs.ci-config.outputs.skip_concurrent == 'yes' }}
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - uses: git-for-windows/setup-git-for-windows-sdk@v1
     - name: build
       shell: bash
@@ -123,7 +123,7 @@
     - name: zip up tracked files
       run: git archive -o artifacts/tracked.tar.gz HEAD
     - name: upload tracked files and build artifacts
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v4
       with:
         name: windows-artifacts
         path: artifacts
@@ -140,7 +140,7 @@
       cancel-in-progress: ${{ needs.ci-config.outputs.skip_concurrent == 'yes' }}
     steps:
     - name: download tracked files and build artifacts
-      uses: actions/download-artifact@v3
+      uses: actions/download-artifact@v4
       with:
         name: windows-artifacts
         path: ${{github.workspace}}
@@ -157,7 +157,7 @@
       run: ci/print-test-failures.sh
     - name: Upload failed tests' directories
       if: failure() && env.FAILED_TEST_ARTIFACTS != ''
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v4
       with:
         name: failed-tests-windows
         path: ${{env.FAILED_TEST_ARTIFACTS}}
@@ -173,10 +173,10 @@
       group: vs-build-${{ github.ref }}
       cancel-in-progress: ${{ needs.ci-config.outputs.skip_concurrent == 'yes' }}
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - uses: git-for-windows/setup-git-for-windows-sdk@v1
     - name: initialize vcpkg
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
       with:
         repository: 'microsoft/vcpkg'
         path: 'compat/vcbuild/vcpkg'
@@ -212,7 +212,7 @@
     - name: zip up tracked files
       run: git archive -o artifacts/tracked.tar.gz HEAD
     - name: upload tracked files and build artifacts
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v4
       with:
         name: vs-artifacts
         path: artifacts
@@ -230,7 +230,7 @@
     steps:
     - uses: git-for-windows/setup-git-for-windows-sdk@v1
     - name: download tracked files and build artifacts
-      uses: actions/download-artifact@v3
+      uses: actions/download-artifact@v4
       with:
         name: vs-artifacts
         path: ${{github.workspace}}
@@ -248,7 +248,7 @@
       run: ci/print-test-failures.sh
     - name: Upload failed tests' directories
       if: failure() && env.FAILED_TEST_ARTIFACTS != ''
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v4
       with:
         name: failed-tests-windows
         path: ${{env.FAILED_TEST_ARTIFACTS}}
@@ -297,7 +297,7 @@
       runs_on_pool: ${{matrix.vector.pool}}
     runs-on: ${{matrix.vector.pool}}
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - run: ci/install-dependencies.sh
     - run: ci/run-build-and-tests.sh
     - name: print test failures
@@ -305,10 +305,21 @@
       run: ci/print-test-failures.sh
     - name: Upload failed tests' directories
       if: failure() && env.FAILED_TEST_ARTIFACTS != ''
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v4
       with:
         name: failed-tests-${{matrix.vector.jobname}}
         path: ${{env.FAILED_TEST_ARTIFACTS}}
+  fuzz-smoke-test:
+    name: fuzz smoke test
+    needs: ci-config
+    if: needs.ci-config.outputs.enabled == 'yes'
+    env:
+      CC: clang
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v4
+    - run: ci/install-dependencies.sh
+    - run: ci/run-build-and-minimal-fuzzers.sh
   dockerized:
     name: ${{matrix.vector.jobname}} (${{matrix.vector.image}})
     needs: ci-config
@@ -331,9 +342,9 @@
     runs-on: ubuntu-latest
     container: ${{matrix.vector.image}}
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
       if: matrix.vector.jobname != 'linux32'
-    - uses: actions/checkout@v1
+    - uses: actions/checkout@v1 # cannot be upgraded because Node.js Actions aren't supported in this container
       if: matrix.vector.jobname == 'linux32'
     - run: ci/install-docker-dependencies.sh
     - run: ci/run-build-and-tests.sh
@@ -342,13 +353,13 @@
       run: ci/print-test-failures.sh
     - name: Upload failed tests' directories
       if: failure() && env.FAILED_TEST_ARTIFACTS != '' && matrix.vector.jobname != 'linux32'
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v4
       with:
         name: failed-tests-${{matrix.vector.jobname}}
         path: ${{env.FAILED_TEST_ARTIFACTS}}
     - name: Upload failed tests' directories
       if: failure() && env.FAILED_TEST_ARTIFACTS != '' && matrix.vector.jobname == 'linux32'
-      uses: actions/upload-artifact@v1
+      uses: actions/upload-artifact@v1 # cannot be upgraded because Node.js Actions aren't supported in this container
       with:
         name: failed-tests-${{matrix.vector.jobname}}
         path: ${{env.FAILED_TEST_ARTIFACTS}}
@@ -362,7 +373,7 @@
       group: static-analysis-${{ github.ref }}
       cancel-in-progress: ${{ needs.ci-config.outputs.skip_concurrent == 'yes' }}
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - run: ci/install-dependencies.sh
     - run: ci/run-static-analysis.sh
     - run: ci/check-directional-formatting.bash
@@ -385,7 +396,7 @@
         artifact: sparse-20.04
     - name: Install the current `sparse` package
       run: sudo dpkg -i sparse-20.04/sparse_*.deb
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - name: Install other dependencies
       run: ci/install-dependencies.sh
     - run: make sparse
@@ -400,6 +411,6 @@
       jobname: Documentation
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - run: ci/install-dependencies.sh
     - run: ci/test-documentation.sh
diff --git a/.gitignore b/.gitignore
index 5e56e47..612c0f6 100644
--- a/.gitignore
+++ b/.gitignore
@@ -135,6 +135,7 @@
 /git-remote-ext
 /git-repack
 /git-replace
+/git-replay
 /git-request-pull
 /git-rerere
 /git-reset
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index cd98bcb..43bfbd8 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -7,7 +7,7 @@
     - if: $CI_COMMIT_TAG
     - if: $CI_COMMIT_REF_PROTECTED == "true"
 
-test:
+test:linux:
   image: $image
   before_script:
     - ./ci/install-docker-dependencies.sh
@@ -51,3 +51,45 @@
     paths:
       - t/failed-test-artifacts
     when: on_failure
+
+test:osx:
+  image: $image
+  tags:
+    - saas-macos-medium-m1
+  variables:
+    TEST_OUTPUT_DIRECTORY: "/Volumes/RAMDisk"
+  before_script:
+    # Create a 4GB RAM disk that we use to store test output on. This small hack
+    # significantly speeds up tests by more than a factor of 2 because the
+    # macOS runners use network-attached storage as disks, which is _really_
+    # slow with the many small writes that our tests do.
+    - sudo diskutil apfs create $(hdiutil attach -nomount ram://8192000) RAMDisk
+    - ./ci/install-dependencies.sh
+  script:
+    - ./ci/run-build-and-tests.sh
+  after_script:
+    - |
+      if test "$CI_JOB_STATUS" != 'success'
+      then
+        ./ci/print-test-failures.sh
+        mv "$TEST_OUTPUT_DIRECTORY"/failed-test-artifacts t/
+      fi
+  parallel:
+    matrix:
+      - jobname: osx-clang
+        image: macos-13-xcode-14
+        CC: clang
+  artifacts:
+    paths:
+      - t/failed-test-artifacts
+    when: on_failure
+
+static-analysis:
+  image: ubuntu:22.04
+  variables:
+    jobname: StaticAnalysis
+  before_script:
+    - ./ci/install-docker-dependencies.sh
+  script:
+    - ./ci/run-static-analysis.sh
+    - ./ci/check-directional-formatting.bash
diff --git a/Documentation/Makefile b/Documentation/Makefile
index b629176..3f2383a 100644
--- a/Documentation/Makefile
+++ b/Documentation/Makefile
@@ -122,6 +122,7 @@
 TECH_DOCS += technical/send-pack-pipeline
 TECH_DOCS += technical/shallow
 TECH_DOCS += technical/trivial-merge
+TECH_DOCS += technical/unit-tests
 SP_ARTICLES += $(TECH_DOCS)
 SP_ARTICLES += technical/api-index
 
diff --git a/Documentation/RelNotes/2.44.0.txt b/Documentation/RelNotes/2.44.0.txt
new file mode 100644
index 0000000..14f9ce8
--- /dev/null
+++ b/Documentation/RelNotes/2.44.0.txt
@@ -0,0 +1,334 @@
+Git v2.44 Release Notes
+=======================
+
+Backward Compatibility Notes
+
+ * "git checkout -B <branch>" used to allow switching to a branch that
+   is in use on another worktree, but this was by mistake.  The users
+   need to use "--ignore-other-worktrees" option.
+
+
+UI, Workflows & Features
+
+ * "git add" and "git stash" learned to support the ":(attr:...)"
+   magic pathspec.
+
+ * "git rebase --autosquash" is now enabled for non-interactive rebase,
+   but it is still incompatible with the apply backend.
+
+ * Introduce "git replay", a tool meant on the server side without
+   working tree to recreate a history.
+
+ * "git merge-file" learned to take the "--diff-algorithm" option to
+   use algorithm different from the default "myers" diff.
+
+ * Command line completion (in contrib/) learned to complete path
+   arguments to the "add/set" subcommands of "git sparse-checkout"
+   better.
+
+ * "git checkout -B <branch> [<start-point>]" allowed a branch that is
+   in use in another worktree to be updated and checked out, which
+   might be a bit unexpected.  The rule has been tightened, which is a
+   breaking change.  "--ignore-other-worktrees" option is required to
+   unbreak you, if you are used to the current behaviour that "-B"
+   overrides the safety.
+
+ * The builtin_objectmode attribute is populated for each path
+   without adding anything in .gitattributes files, which would be
+   useful in magic pathspec, e.g., ":(attr:builtin_objectmode=100755)"
+   to limit to executables.
+
+ * "git fetch" learned to pay attention to "fetch.all" configuration
+   variable, which pretends as if "--all" was passed from the command
+   line when no remote parameter was given.
+
+ * In addition to (rather cryptic) Security Identifiers, show username
+   and domain in the error message when we barf on mismatch between
+   the Git directory and the current user on Windows.
+
+ * The error message given when "git branch -d branch" fails due to
+   commits unique to the branch has been split into an error and a new
+   conditional advice message.
+
+ * When given an existing but unreadable file as a configuration file,
+   gitweb behaved as if the file did not exist at all, but now it
+   errors out.  This is a change that may break backward compatibility.
+
+ * When $HOME/.gitconfig is missing but XDG config file is available, we
+   should write into the latter, not former.  "git gc" and "git
+   maintenance" wrote into a wrong "global config" file, which have
+   been corrected.
+
+ * Define "special ref" as a very narrow set that consists of
+   FETCH_HEAD and MERGE_HEAD, and clarify everything else that used to
+   be classified as such are actually just pseudorefs.
+
+ * All conditional "advice" messages show how to turn them off, which
+   becomes repetitive.  Setting advice.* configuration explicitly on
+   now omits the instruction part.
+
+ * The "disable repository discovery of a bare repository" check,
+   triggered by setting safe.bareRepository configuration variable to
+   'explicit', has been loosened to exclude the ".git/" directory inside
+   a non-bare repository from the check.  So you can do "cd .git &&
+   git cmd" to run a Git command that works on a bare repository without
+   explicitly specifying $GIT_DIR now.
+
+ * The completion script (in contrib/) learned more options that can
+   be used with "git log".
+
+ * The labels on conflict markers for the common ancestor, our version,
+   and the other version are available to custom 3-way merge driver
+   via %S, %X, and %Y placeholders.
+
+ * The write codepath for the reftable data learned to honor
+   core.fsync configuration.
+
+ * The "--fsck-objects" option of "git index-pack" now can take the
+   optional parameter to tweak severity of different fsck errors.
+
+ * The wincred credential backend has been taught to support oauth
+   refresh token the same way as credential-cache and
+   credential-libsecret backends.
+
+ * Command line completion support (in contrib/) has been
+   updated for "git bisect".
+
+ * "git branch" and friends learned to use the formatted text as
+   sorting key, not the underlying timestamp value, when the --sort
+   option is used with author or committer timestamp with a format
+   specifier (e.g., "--sort=creatordate:format:%H:%M:%S").
+
+ * The command line completion script (in contrib/) learned to
+   complete configuration variable names better.
+
+
+Performance, Internal Implementation, Development Support etc.
+
+ * Process to add some form of low-level unit tests has started.
+
+ * Add support for GitLab CI.
+
+ * "git for-each-ref --no-sort" still sorted the refs alphabetically
+   which paid non-trivial cost.  It has been redefined to show output
+   in an unspecified order, to allow certain optimizations to take
+   advantage of.
+
+ * Simplify API implementation to delete references by eliminating
+   duplication.
+
+ * Subject approxidate() and show_date() machinery to OSS-Fuzz.
+
+ * A new helper to let us pretend that we called lstat() when we know
+   our cache_entry is up-to-date via fsmonitor.
+
+ * The optimization based on fsmonitor in the "diff --cached"
+   codepath is resurrected with the "fake-lstat" introduced earlier.
+
+ * Test balloon to use C99 "bool" type from <stdbool.h> has been
+   added.
+
+ * "git clone" has been prepared to allow cloning a repository with
+   non-default hash function into a repository that uses the reftable
+   backend.
+
+ * Streaming spans of packfile data used to be done only from a
+   single, primary, pack in a repository with multiple packfiles.  It
+   has been extended to allow reuse from other packfiles, too.
+
+ * Comment updates to help developers not to attempt to modify
+   messages from plumbing commands that must stay constant.
+
+   It might make sense to reassess the plumbing needs every few years,
+   but that should be done as a separate effort.
+
+ * Move test-ctype helper to the unit-test framework.
+
+ * Instead of manually creating refs/ hierarchy on disk upon a
+   creation of a secondary worktree, which is only usable via the
+   files backend, use the refs API to populate it.
+
+ * CI for GitLab learned to drive macOS jobs.
+
+ * A few tests to "git commit -o <pathspec>" and "git commit -i
+   <pathspec>" has been added.
+
+ * Tests on ref API are moved around to prepare for reftable.
+
+ * The Makefile often had to say "-L$(path) -R$(path)" that repeats
+   the path to the same library directory for link time and runtime.
+   A Makefile template is used to reduce such repetition.
+
+ * The priority queue test has been migrated to the unit testing
+   framework.
+
+ * Setting `feature.experimental` opts the user into multi-pack reuse
+   experiment
+
+ * Squelch node.js 16 deprecation warnings from GitHub Actions CI
+   by updating actions/github-script and actions/checkout that use
+   node.js 20.
+
+ * The mechanism to report the filename in the source code, used by
+   the unit-test machinery, assumed that the compiler expanded __FILE__
+   to the path to the source given to the $(CC), but some compilers
+   give full path, breaking the output.  This has been corrected.
+
+
+Fixes since v2.43
+-----------------
+
+ * The way CI testing used "prove" could lead to running the test
+   suite twice needlessly, which has been corrected.
+
+ * Update ref-related tests.
+
+ * "git format-patch --encode-email-headers" ignored the option when
+   preparing the cover letter, which has been corrected.
+
+ * Newer versions of Getopt::Long started giving warnings against our
+   (ab)use of it in "git send-email".  Bump the minimum version
+   requirement for Perl to 5.8.1 (from September 2002) to allow
+   simplifying our implementation.
+
+ * Earlier we stopped relying on commit-graph that (still) records
+   information about commits that are lost from the object store,
+   which has negative performance implications.  The default has been
+   flipped to disable this pessimization.
+
+ * Stale URLs have been updated to their current counterparts (or
+   archive.org) and HTTP links are replaced with working HTTPS links.
+
+ * trace2 streams used to record the URLs that potentially embed
+   authentication material, which has been corrected.
+
+ * The sample pre-commit hook that tries to catch introduction of new
+   paths that use potentially non-portable characters did not notice
+   an existing path getting renamed to such a problematic path, when
+   rename detection was enabled.
+
+ * The command line parser for the "log" family of commands was too
+   loose when parsing certain numbers, e.g., silently ignoring the
+   extra 'q' in "git log -n 1q" without complaining, which has been
+   tightened up.
+
+ * "git $cmd --end-of-options --rev -- --path" for some $cmd failed
+   to interpret "--rev" as a rev, and "--path" as a path.  This was
+   fixed for many programs like "reset" and "checkout".
+
+ * "git bisect reset" has been taught to clean up state files and refs
+   even when BISECT_START file is gone.
+
+ * Some codepaths did not correctly parse configuration variables
+   specified with valueless "true", which has been corrected.
+
+ * Code clean-up for sanity checking of command line options for "git
+   show-ref".
+
+ * The code to parse the From e-mail header has been updated to avoid
+   recursion.
+
+ * "git fetch --atomic" issued an unnecessary empty error message,
+   which has been corrected.
+
+ * Command line completion script (in contrib/) learned to work better
+   with the reftable backend.
+
+ * "git status" is taught to show both the branch being bisected and
+   being rebased when both are in effect at the same time.
+
+ * "git archive --list extra garbage" silently ignored excess command
+   line parameters, which has been corrected.
+
+ * "git sparse-checkout set" added default patterns even when the
+   patterns are being fed from the standard input, which has been
+   corrected.
+
+ * "git sparse-checkout (add|set) --[no-]cone --end-of-options" did
+   not handle "--end-of-options" correctly after a recent update.
+
+ * Unlike other environment variables that took the usual
+   true/false/yes/no as well as 0/1, GIT_FLUSH only understood 0/1,
+   which has been corrected.
+
+ * Clearing in-core repository (happens during e.g., "git fetch
+   --recurse-submodules" with commit graph enabled) made in-core
+   commit object in an inconsistent state by discarding the necessary
+   data from commit-graph too early, which has been corrected.
+
+ * Update to a new feature recently added, "git show-ref --exists".
+
+ * oss-fuzz tests are built and run in CI.
+   (merge c4a9cf1df3 js/oss-fuzz-build-in-ci later to maint).
+
+ * Rename detection logic ignored the final line of a file if it is an
+   incomplete line.
+
+ * GitHub CI update.
+   (merge 0188b2c8e0 pb/ci-github-skip-logs-for-broken-tests later to maint).
+
+ * "git diff --no-rename A B" did not disable rename detection but did
+   not trigger an error from the command line parser.
+
+ * "git archive --remote=<remote>" learned to talk over the smart
+   http (aka stateless) transport.
+   (merge 176cd68634 jx/remote-archive-over-smart-http later to maint).
+
+ * Fetching via protocol v0 over Smart HTTP transport sometimes failed
+   to correctly auto-follow tags.
+   (merge fba732c462 jk/fetch-auto-tag-following-fix later to maint).
+
+ * The documentation for the --exclude-per-directory option marked it
+   as deprecated, which confused readers into thinking there may be a
+   plan to remove it in the future, which was not our intention.
+   (merge 0009542cab jc/ls-files-doc-update later to maint).
+
+ * "git diff --no-index file1 file2" segfaulted while invoking the
+   external diff driver, which has been corrected.
+
+ * Rewrite //-comments to /* comments */ in files whose comments
+   prevalently use the latter.
+
+ * Cirrus CI jobs started breaking because we specified version of
+   FreeBSD that is no longer available, which has been corrected.
+   (merge 81fffb66d3 cb/use-freebsd-13-2-at-cirrus-ci later to maint).
+
+ * A caller called index_file_exists() that takes a string expressed
+   as <ptr, length> with a wrong length, which has been corrected.
+   (merge 156e28b36d jh/sparse-index-expand-to-path-fix later to maint).
+
+ * A failed "git tag -s" did not necessarily result in an error
+   depending on the crypto backend, which has been corrected.
+
+ * "git stash" sometimes was silent even when it failed due to
+   unwritable index file, which has been corrected.
+
+ * "git show-ref --verify" did not show things like "CHERRY_PICK_HEAD",
+   which has been corrected.
+
+ * Recent conversion to allow more than 0/1 in GIT_FLUSH broke the
+   mechanism by flipping what yes/no means by mistake, which has been
+   corrected.
+
+ * The sequencer machinery does not use the ref API and instead
+   records names of certain objects it needs for its correct operation
+   in temporary files, which makes these objects susceptible to loss
+   by garbage collection.  These temporary files have been added as
+   starting points for reachability analysis to fix this.
+   (merge bc7f5db896 pw/gc-during-rebase later to maint).
+
+ * "git cherry-pick" invoked during "git rebase -i" session lost
+   the authorship information, which has been corrected.
+   (merge e4301f73ff vn/rebase-with-cherry-pick-authorship later to maint).
+
+ * The code paths that call repo_read_object_file() have been
+   tightened to react to errors.
+   (merge 568459bf5e js/check-null-from-read-object-file later to maint).
+
+ * Other code cleanup, docfix, build fix, etc.
+   (merge 5aea3955bc rj/clarify-branch-doc-m later to maint).
+   (merge 9cce3be2df bk/bisect-doc-fix later to maint).
+   (merge 8430b438f6 vd/fsck-submodule-url-test later to maint).
+   (merge 3cb4384683 jc/t0091-with-unknown-git later to maint).
+   (merge 020456cb74 rs/receive-pack-remove-find-header later to maint).
+   (merge bc47139f4f la/trailer-cleanups later to maint).
diff --git a/Documentation/config/advice.txt b/Documentation/config/advice.txt
index 4d7e5d8..c7ea70f 100644
--- a/Documentation/config/advice.txt
+++ b/Documentation/config/advice.txt
@@ -1,30 +1,63 @@
 advice.*::
 	These variables control various optional help messages designed to
-	aid new users. All 'advice.*' variables default to 'true', and you
-	can tell Git that you do not need help by setting these to 'false':
+	aid new users.  When left unconfigured, Git will give the message
+	alongside instructions on how to squelch it.  You can tell Git
+	that you do not need the help message by setting these to 'false':
 +
 --
+	addEmbeddedRepo::
+		Advice on what to do when you've accidentally added one
+		git repo inside of another.
+	addEmptyPathspec::
+		Advice shown if a user runs the add command without providing
+		the pathspec parameter.
+	addIgnoredFile::
+		Advice shown if a user attempts to add an ignored file to
+		the index.
+	amWorkDir::
+		Advice that shows the location of the patch file when
+		linkgit:git-am[1] fails to apply it.
 	ambiguousFetchRefspec::
 		Advice shown when a fetch refspec for multiple remotes maps to
 		the same remote-tracking branch namespace and causes branch
 		tracking set-up to fail.
+	checkoutAmbiguousRemoteBranchName::
+		Advice shown when the argument to
+		linkgit:git-checkout[1] and linkgit:git-switch[1]
+		ambiguously resolves to a
+		remote tracking branch on more than one remote in
+		situations where an unambiguous argument would have
+		otherwise caused a remote-tracking branch to be
+		checked out. See the `checkout.defaultRemote`
+		configuration variable for how to set a given remote
+		to be used by default in some situations where this
+		advice would be printed.
+	commitBeforeMerge::
+		Advice shown when linkgit:git-merge[1] refuses to
+		merge to avoid overwriting local changes.
+	detachedHead::
+		Advice shown when you used
+		linkgit:git-switch[1] or linkgit:git-checkout[1]
+		to move to the detached HEAD state, to instruct how to
+		create a local branch after the fact.
+	diverging::
+		Advice shown when a fast-forward is not possible.
 	fetchShowForcedUpdates::
 		Advice shown when linkgit:git-fetch[1] takes a long time
 		to calculate forced updates after ref updates, or to warn
 		that the check is disabled.
-	pushUpdateRejected::
-		Set this variable to 'false' if you want to disable
-		'pushNonFFCurrent', 'pushNonFFMatching', 'pushAlreadyExists',
-		'pushFetchFirst', 'pushNeedsForce', and 'pushRefNeedsUpdate'
-		simultaneously.
-	pushNonFFCurrent::
-		Advice shown when linkgit:git-push[1] fails due to a
-		non-fast-forward update to the current branch.
-	pushNonFFMatching::
-		Advice shown when you ran linkgit:git-push[1] and pushed
-		'matching refs' explicitly (i.e. you used ':', or
-		specified a refspec that isn't your current branch) and
-		it resulted in a non-fast-forward error.
+	forceDeleteBranch::
+		Advice shown when a user tries to delete a not fully merged
+		branch without the force option set.
+	ignoredHook::
+		Advice shown if a hook is ignored because the hook is not
+		set as executable.
+	implicitIdentity::
+		Advice on how to set your identity configuration when
+		your information is guessed from the system username and
+		domain name.
+	nestedTag::
+		Advice shown if a user attempts to recursively tag a tag object.
 	pushAlreadyExists::
 		Shown when linkgit:git-push[1] rejects an update that
 		does not qualify for fast-forwarding (e.g., a tag.)
@@ -37,6 +70,18 @@
 		tries to overwrite a remote ref that points at an
 		object that is not a commit-ish, or make the remote
 		ref point at an object that is not a commit-ish.
+	pushNonFFCurrent::
+		Advice shown when linkgit:git-push[1] fails due to a
+		non-fast-forward update to the current branch.
+	pushNonFFMatching::
+		Advice shown when you ran linkgit:git-push[1] and pushed
+		'matching refs' explicitly (i.e. you used ':', or
+		specified a refspec that isn't your current branch) and
+		it resulted in a non-fast-forward error.
+	pushRefNeedsUpdate::
+		Shown when linkgit:git-push[1] rejects a forced update of
+		a branch when its remote-tracking ref has updates that we
+		do not have locally.
 	pushUnqualifiedRefname::
 		Shown when linkgit:git-push[1] gives up trying to
 		guess based on the source and destination refs what
@@ -44,10 +89,23 @@
 		we can still suggest that the user push to either
 		refs/heads/* or refs/tags/* based on the type of the
 		source object.
-	pushRefNeedsUpdate::
-		Shown when linkgit:git-push[1] rejects a forced update of
-		a branch when its remote-tracking ref has updates that we
-		do not have locally.
+	pushUpdateRejected::
+		Set this variable to 'false' if you want to disable
+		'pushNonFFCurrent', 'pushNonFFMatching', 'pushAlreadyExists',
+		'pushFetchFirst', 'pushNeedsForce', and 'pushRefNeedsUpdate'
+		simultaneously.
+	resetNoRefresh::
+		Advice to consider using the `--no-refresh` option to
+		linkgit:git-reset[1] when the command takes more than 2 seconds
+		to refresh the index after reset.
+	resolveConflict::
+		Advice shown by various commands when conflicts
+		prevent the operation from being performed.
+	rmHints::
+		In case of failure in the output of linkgit:git-rm[1],
+		show directions on how to proceed from the current state.
+	sequencerInUse::
+		Advice shown when a sequencer command is already in progress.
 	skippedCherryPicks::
 		Shown when linkgit:git-rebase[1] skips a commit that has already
 		been cherry-picked onto the upstream branch.
@@ -68,76 +126,22 @@
 		Advise to consider using the `-u` option to linkgit:git-status[1]
 		when the command takes more than 2 seconds to enumerate untracked
 		files.
-	commitBeforeMerge::
-		Advice shown when linkgit:git-merge[1] refuses to
-		merge to avoid overwriting local changes.
-	resetNoRefresh::
-		Advice to consider using the `--no-refresh` option to
-		linkgit:git-reset[1] when the command takes more than 2 seconds
-		to refresh the index after reset.
-	resolveConflict::
-		Advice shown by various commands when conflicts
-		prevent the operation from being performed.
-	sequencerInUse::
-		Advice shown when a sequencer command is already in progress.
-	implicitIdentity::
-		Advice on how to set your identity configuration when
-		your information is guessed from the system username and
-		domain name.
-	detachedHead::
-		Advice shown when you used
-		linkgit:git-switch[1] or linkgit:git-checkout[1]
-		to move to the detached HEAD state, to instruct how to
-		create a local branch after the fact.
-	suggestDetachingHead::
-		Advice shown when linkgit:git-switch[1] refuses to detach HEAD
-		without the explicit `--detach` option.
-	checkoutAmbiguousRemoteBranchName::
-		Advice shown when the argument to
-		linkgit:git-checkout[1] and linkgit:git-switch[1]
-		ambiguously resolves to a
-		remote tracking branch on more than one remote in
-		situations where an unambiguous argument would have
-		otherwise caused a remote-tracking branch to be
-		checked out. See the `checkout.defaultRemote`
-		configuration variable for how to set a given remote
-		to be used by default in some situations where this
-		advice would be printed.
-	amWorkDir::
-		Advice that shows the location of the patch file when
-		linkgit:git-am[1] fails to apply it.
-	rmHints::
-		In case of failure in the output of linkgit:git-rm[1],
-		show directions on how to proceed from the current state.
-	addEmbeddedRepo::
-		Advice on what to do when you've accidentally added one
-		git repo inside of another.
-	ignoredHook::
-		Advice shown if a hook is ignored because the hook is not
-		set as executable.
-	waitingForEditor::
-		Print a message to the terminal whenever Git is waiting for
-		editor input from the user.
-	nestedTag::
-		Advice shown if a user attempts to recursively tag a tag object.
 	submoduleAlternateErrorStrategyDie::
 		Advice shown when a submodule.alternateErrorStrategy option
 		configured to "die" causes a fatal error.
 	submodulesNotUpdated::
 		Advice shown when a user runs a submodule command that fails
 		because `git submodule update --init` was not run.
-	addIgnoredFile::
-		Advice shown if a user attempts to add an ignored file to
-		the index.
-	addEmptyPathspec::
-		Advice shown if a user runs the add command without providing
-		the pathspec parameter.
+	suggestDetachingHead::
+		Advice shown when linkgit:git-switch[1] refuses to detach HEAD
+		without the explicit `--detach` option.
 	updateSparsePath::
 		Advice shown when either linkgit:git-add[1] or linkgit:git-rm[1]
 		is asked to update index entries outside the current sparse
 		checkout.
-	diverging::
-		Advice shown when a fast-forward is not possible.
+	waitingForEditor::
+		Print a message to the terminal whenever Git is waiting for
+		editor input from the user.
 	worktreeAddOrphan::
 		Advice shown when a user tries to create a worktree from an
 		invalid reference, to instruct how to create a new unborn
diff --git a/Documentation/config/extensions.txt b/Documentation/config/extensions.txt
index bccaec7..66db0e1 100644
--- a/Documentation/config/extensions.txt
+++ b/Documentation/config/extensions.txt
@@ -7,6 +7,17 @@
 linkgit:git-clone[1].  Trying to change it after initialization will not
 work and will produce hard-to-diagnose issues.
 
+extensions.refStorage::
+	Specify the ref storage format to use. The acceptable values are:
++
+include::../ref-storage-format.txt[]
++
+It is an error to specify this key unless `core.repositoryFormatVersion` is 1.
++
+Note that this setting should only be set by linkgit:git-init[1] or
+linkgit:git-clone[1]. Trying to change it after initialization will not
+work and will produce hard-to-diagnose issues.
+
 extensions.worktreeConfig::
 	If enabled, then worktrees will load config settings from the
 	`$GIT_DIR/config.worktree` file in addition to the
diff --git a/Documentation/config/feature.txt b/Documentation/config/feature.txt
index bf9546f..f061b64 100644
--- a/Documentation/config/feature.txt
+++ b/Documentation/config/feature.txt
@@ -17,6 +17,9 @@
 +
 * `pack.useBitmapBoundaryTraversal=true` may improve bitmap traversal times by
 walking fewer objects.
++
+* `pack.allowPackReuse=multi` may improve the time it takes to create a pack by
+reusing objects from multiple packs instead of just one.
 
 feature.manyFiles::
 	Enable config options that optimize for repos with many files in the
diff --git a/Documentation/config/fetch.txt b/Documentation/config/fetch.txt
index aea5b97..d7dc461 100644
--- a/Documentation/config/fetch.txt
+++ b/Documentation/config/fetch.txt
@@ -50,6 +50,12 @@
 	refs. See also `remote.<name>.pruneTags` and the PRUNING
 	section of linkgit:git-fetch[1].
 
+fetch.all::
+	If true, fetch will attempt to update all available remotes.
+	This behavior can be overridden by passing `--no-all` or by
+	explicitly specifying one or more remote(s) to fetch from.
+	Defaults to false.
+
 fetch.output::
 	Control how ref update status is printed. Valid values are
 	`full` and `compact`. Default value is `full`. See the
diff --git a/Documentation/config/pack.txt b/Documentation/config/pack.txt
index f50df9d..9c63086 100644
--- a/Documentation/config/pack.txt
+++ b/Documentation/config/pack.txt
@@ -28,11 +28,17 @@
 to linkgit:git-repack[1].
 
 pack.allowPackReuse::
-	When true, and when reachability bitmaps are enabled,
-	pack-objects will try to send parts of the bitmapped packfile
-	verbatim. This can reduce memory and CPU usage to serve fetches,
-	but might result in sending a slightly larger pack. Defaults to
-	true.
+	When true or "single", and when reachability bitmaps are
+	enabled, pack-objects will try to send parts of the bitmapped
+	packfile verbatim. When "multi", and when a multi-pack
+	reachability bitmap is available, pack-objects will try to send
+	parts of all packs in the MIDX.
++
+	If only a single pack bitmap is available, and
+	`pack.allowPackReuse` is set to "multi", reuse parts of just the
+	bitmapped packfile. This can reduce memory and CPU usage to
+	serve fetches, but might result in sending a slightly larger
+	pack. Defaults to true.
 
 pack.island::
 	An extended regular expression configuring a set of delta
diff --git a/Documentation/config/rebase.txt b/Documentation/config/rebase.txt
index 7c57c5e..c6187ab 100644
--- a/Documentation/config/rebase.txt
+++ b/Documentation/config/rebase.txt
@@ -9,7 +9,9 @@
 	rebase. False by default.
 
 rebase.autoSquash::
-	If set to true enable `--autosquash` option by default.
+	If set to true, enable the `--autosquash` option of
+	linkgit:git-rebase[1] by default for interactive mode.
+	This can be overridden with the `--no-autosquash` option.
 
 rebase.autoStash::
 	When set to true, automatically create a temporary stash entry
diff --git a/Documentation/diff-options.txt b/Documentation/diff-options.txt
index 53ec3c9..aaaff0d 100644
--- a/Documentation/diff-options.txt
+++ b/Documentation/diff-options.txt
@@ -299,7 +299,7 @@
 	Synonym for --dirstat=cumulative
 
 --dirstat-by-file[=<param1,param2>...]::
-	Synonym for --dirstat=files,param1,param2...
+	Synonym for --dirstat=files,<param1>,<param2>...
 
 --summary::
 	Output a condensed summary of extended header information
diff --git a/Documentation/fetch-options.txt b/Documentation/fetch-options.txt
index a1d6633..54ebb44 100644
--- a/Documentation/fetch-options.txt
+++ b/Documentation/fetch-options.txt
@@ -1,5 +1,6 @@
---all::
-	Fetch all remotes.
+--[no-]all::
+	Fetch all remotes. This overrides the configuration variable
+	`fetch.all`.
 
 -a::
 --append::
diff --git a/Documentation/git-bisect.txt b/Documentation/git-bisect.txt
index a0e75a6..82f944d 100644
--- a/Documentation/git-bisect.txt
+++ b/Documentation/git-bisect.txt
@@ -17,7 +17,7 @@
 on the subcommand:
 
  git bisect start [--term-(bad|new)=<term-new> --term-(good|old)=<term-old>]
-		  [--no-checkout] [--first-parent] [<bad> [<good>...]] [--] [<paths>...]
+		  [--no-checkout] [--first-parent] [<bad> [<good>...]] [--] [<pathspec>...]
  git bisect (bad|new|<term-new>) [<rev>]
  git bisect (good|old|<term-old>) [<rev>...]
  git bisect terms [--term-(good|old) | --term-(bad|new)]
@@ -301,7 +301,7 @@
 
 You can further cut down the number of trials, if you know what part of
 the tree is involved in the problem you are tracking down, by specifying
-path parameters when issuing the `bisect start` command:
+pathspec parameters when issuing the `bisect start` command:
 
 ------------
 $ git bisect start -- arch/i386 include/asm-i386
diff --git a/Documentation/git-blame.txt b/Documentation/git-blame.txt
index 5720d04..b1d7fb5 100644
--- a/Documentation/git-blame.txt
+++ b/Documentation/git-blame.txt
@@ -210,7 +210,7 @@
 
 . Each blame entry always starts with a line of:
 
-	<40-byte hex sha1> <sourceline> <resultline> <num_lines>
+	<40-byte-hex-sha1> <sourceline> <resultline> <num-lines>
 +
 Line numbers count from 1.
 
diff --git a/Documentation/git-branch.txt b/Documentation/git-branch.txt
index 4395aa9..0b08442 100644
--- a/Documentation/git-branch.txt
+++ b/Documentation/git-branch.txt
@@ -312,7 +312,8 @@
 	option is omitted, the current HEAD will be used instead.
 
 <oldbranch>::
-	The name of an existing branch to rename.
+	The name of an existing branch.  If this option is omitted,
+	the name of the current branch will be used instead.
 
 <newbranch>::
 	The new name for an existing branch. The same restrictions as for
diff --git a/Documentation/git-bugreport.txt b/Documentation/git-bugreport.txt
index 392d9eb..ca626f7 100644
--- a/Documentation/git-bugreport.txt
+++ b/Documentation/git-bugreport.txt
@@ -52,7 +52,7 @@
 -s <format>::
 --suffix <format>::
 	Specify an alternate suffix for the bugreport name, to create a file
-	named 'git-bugreport-<formatted suffix>'. This should take the form of a
+	named 'git-bugreport-<formatted-suffix>'. This should take the form of a
 	strftime(3) format string; the current local time will be used.
 
 --no-diagnose::
@@ -60,7 +60,7 @@
 	Create a zip archive of supplemental information about the user's
 	machine, Git client, and repository state. The archive is written to the
 	same output directory as the bug report and is named
-	'git-diagnostics-<formatted suffix>'.
+	'git-diagnostics-<formatted-suffix>'.
 +
 Without `mode` specified, the diagnostic archive will contain the default set of
 statistics reported by `git diagnose`. An optional `mode` value may be specified
diff --git a/Documentation/git-checkout.txt b/Documentation/git-checkout.txt
index 26ad1a5..8bdfa54 100644
--- a/Documentation/git-checkout.txt
+++ b/Documentation/git-checkout.txt
@@ -63,7 +63,9 @@
 ------------
 +
 that is to say, the branch is not reset/created unless "git checkout" is
-successful.
+successful (e.g., when the branch is in use in another worktree, not
+just the current branch stays the same, but the branch is not reset to
+the start-point, either).
 
 'git checkout' --detach [<branch>]::
 'git checkout' [--detach] <commit>::
diff --git a/Documentation/git-clone.txt b/Documentation/git-clone.txt
index c37c4a3..6e43eb9 100644
--- a/Documentation/git-clone.txt
+++ b/Documentation/git-clone.txt
@@ -311,6 +311,12 @@
 	The result is Git repository can be separated from working
 	tree.
 
+--ref-format=<ref-format::
+
+Specify the given ref storage format for the repository. The valid values are:
++
+include::ref-storage-format.txt[]
+
 -j <n>::
 --jobs <n>::
 	The number of submodules fetched at the same time.
diff --git a/Documentation/git-commit-graph.txt b/Documentation/git-commit-graph.txt
index c8dbceb..903b168 100644
--- a/Documentation/git-commit-graph.txt
+++ b/Documentation/git-commit-graph.txt
@@ -13,7 +13,7 @@
 'git commit-graph write' [--object-dir <dir>] [--append]
 			[--split[=<strategy>]] [--reachable | --stdin-packs | --stdin-commits]
 			[--changed-paths] [--[no-]max-new-filters <n>] [--[no-]progress]
-			<split options>
+			<split-options>
 
 
 DESCRIPTION
diff --git a/Documentation/git-config.txt b/Documentation/git-config.txt
index b1caac8..dff3909 100644
--- a/Documentation/git-config.txt
+++ b/Documentation/git-config.txt
@@ -103,11 +103,11 @@
 	names are not.
 
 --get-urlmatch <name> <URL>::
-	When given a two-part name section.key, the value for
-	section.<URL>.key whose <URL> part matches the best to the
+	When given a two-part <name> as <section>.<key>, the value for
+	<section>.<URL>.<key> whose <URL> part matches the best to the
 	given URL is returned (if no such key exists, the value for
-	section.key is used as a fallback).  When given just the
-	section as name, do so for all the keys in the section and
+	<section>.<key> is used as a fallback).  When given just the
+	<section> as name, do so for all the keys in the section and
 	list them.  Returns error code 1 if no value is found.
 
 --global::
diff --git a/Documentation/git-cvsserver.txt b/Documentation/git-cvsserver.txt
index cf4a5a2..4c475ef 100644
--- a/Documentation/git-cvsserver.txt
+++ b/Documentation/git-cvsserver.txt
@@ -197,7 +197,7 @@
 5. Clients should now be able to check out the project. Use the CVS 'module'
    name to indicate what Git 'head' you want to check out.  This also sets the
    name of your newly checked-out directory, unless you tell it otherwise with
-   `-d <dir_name>`.  For example, this checks out 'master' branch to the
+   `-d <dir-name>`.  For example, this checks out 'master' branch to the
    `project-master` directory:
 +
 ------
@@ -224,7 +224,7 @@
 that the database is up to date any time 'git-cvsserver' is executed).
 
 By default it uses SQLite databases in the Git directory, named
-`gitcvs.<module_name>.sqlite`. Note that the SQLite backend creates
+`gitcvs.<module-name>.sqlite`. Note that the SQLite backend creates
 temporary files in the same directory as the database file on
 write so it might not be enough to grant the users using
 'git-cvsserver' write access to the database file without granting
diff --git a/Documentation/git-daemon.txt b/Documentation/git-daemon.txt
index e064f91..ede7b93 100644
--- a/Documentation/git-daemon.txt
+++ b/Documentation/git-daemon.txt
@@ -18,7 +18,7 @@
 	     [--allow-override=<service>] [--forbid-override=<service>]
 	     [--access-hook=<path>] [--[no-]informative-errors]
 	     [--inetd |
-	      [--listen=<host_or_ipaddr>] [--port=<n>]
+	      [--listen=<host-or-ipaddr>] [--port=<n>]
 	      [--user=<user> [--group=<group>]]]
 	     [--log-destination=(stderr|syslog|none)]
 	     [<directory>...]
@@ -86,10 +86,10 @@
 	Incompatible with --detach, --port, --listen, --user and --group
 	options.
 
---listen=<host_or_ipaddr>::
+--listen=<host-or-ipaddr>::
 	Listen on a specific IP address or hostname.  IP addresses can
 	be either an IPv4 address or an IPv6 address if supported.  If IPv6
-	is not supported, then --listen=hostname is also not supported and
+	is not supported, then --listen=<hostname> is also not supported and
 	--listen must be given an IPv4 address.
 	Can be given more than once.
 	Incompatible with `--inetd` option.
@@ -141,8 +141,8 @@
 	specified with no parameter, a request to
 	git://host/{tilde}alice/foo is taken as a request to access
 	'foo' repository in the home directory of user `alice`.
-	If `--user-path=path` is specified, the same request is
-	taken as a request to access `path/foo` repository in
+	If `--user-path=<path>` is specified, the same request is
+	taken as a request to access `<path>/foo` repository in
 	the home directory of user `alice`.
 
 --verbose::
diff --git a/Documentation/git-diagnose.txt b/Documentation/git-diagnose.txt
index 3ec8cc7..0711959 100644
--- a/Documentation/git-diagnose.txt
+++ b/Documentation/git-diagnose.txt
@@ -45,7 +45,7 @@
 -s <format>::
 --suffix <format>::
 	Specify an alternate suffix for the diagnostics archive name, to create
-	a file named 'git-diagnostics-<formatted suffix>'. This should take the
+	a file named 'git-diagnostics-<formatted-suffix>'. This should take the
 	form of a strftime(3) format string; the current local time will be
 	used.
 
diff --git a/Documentation/git-difftool.txt b/Documentation/git-difftool.txt
index 50cb080..c05f97a 100644
--- a/Documentation/git-difftool.txt
+++ b/Documentation/git-difftool.txt
@@ -90,7 +90,7 @@
 --extcmd=<command>::
 	Specify a custom command for viewing diffs.
 	'git-difftool' ignores the configured defaults and runs
-	`$command $LOCAL $REMOTE` when this option is specified.
+	`<command> $LOCAL $REMOTE` when this option is specified.
 	Additionally, `$BASE` is set in the environment.
 
 -g::
diff --git a/Documentation/git-fast-import.txt b/Documentation/git-fast-import.txt
index bd7b1e0..b260736 100644
--- a/Documentation/git-fast-import.txt
+++ b/Documentation/git-fast-import.txt
@@ -745,11 +745,11 @@
 
 `notemodify`
 ^^^^^^^^^^^^
-Included in a `commit` `<notes_ref>` command to add a new note
+Included in a `commit` `<notes-ref>` command to add a new note
 annotating a `<commit-ish>` or change this annotation contents.
 Internally it is similar to filemodify 100644 on `<commit-ish>`
 path (maybe split into subdirectories). It's not advised to
-use any other commands to write to the `<notes_ref>` tree except
+use any other commands to write to the `<notes-ref>` tree except
 `filedeleteall` to delete all existing notes in this tree.
 This command has two different means of specifying the content
 of the note.
diff --git a/Documentation/git-fetch.txt b/Documentation/git-fetch.txt
index f123139..50900a5 100644
--- a/Documentation/git-fetch.txt
+++ b/Documentation/git-fetch.txt
@@ -186,8 +186,8 @@
 ------------------------------------------------
 $ git fetch origin --prune --prune-tags
 $ git fetch origin --prune 'refs/tags/*:refs/tags/*'
-$ git fetch <url of origin> --prune --prune-tags
-$ git fetch <url of origin> --prune 'refs/tags/*:refs/tags/*'
+$ git fetch <url-of-origin> --prune --prune-tags
+$ git fetch <url-of-origin> --prune 'refs/tags/*:refs/tags/*'
 ------------------------------------------------
 
 OUTPUT
diff --git a/Documentation/git-filter-branch.txt b/Documentation/git-filter-branch.txt
index 62e482a..5a4f853 100644
--- a/Documentation/git-filter-branch.txt
+++ b/Documentation/git-filter-branch.txt
@@ -14,7 +14,7 @@
 	[--msg-filter <command>] [--commit-filter <command>]
 	[--tag-name-filter <command>] [--prune-empty]
 	[--original <namespace>] [-d <directory>] [-f | --force]
-	[--state-branch <branch>] [--] [<rev-list options>...]
+	[--state-branch <branch>] [--] [<rev-list-options>...]
 
 WARNING
 -------
@@ -32,7 +32,7 @@
 DESCRIPTION
 -----------
 Lets you rewrite Git revision history by rewriting the branches mentioned
-in the <rev-list options>, applying custom filters on each revision.
+in the <rev-list-options>, applying custom filters on each revision.
 Those filters can modify each tree (e.g. removing a file or running
 a perl rewrite on all files) or information about each commit.
 Otherwise, all information (including original commit times or merge
@@ -624,7 +624,7 @@
      real backup; it dereferences tags first.)
 
   ** Running git-filter-branch with either --tags or --all in your
-     <rev-list options>.  In order to retain annotated tags as
+     <rev-list-options>.  In order to retain annotated tags as
      annotated, you must use --tag-name-filter (and must not have
      restored from refs/original/ in a previously botched rewrite).
 
diff --git a/Documentation/git-for-each-ref.txt b/Documentation/git-for-each-ref.txt
index e86d570..3a9ad91 100644
--- a/Documentation/git-for-each-ref.txt
+++ b/Documentation/git-for-each-ref.txt
@@ -51,17 +51,14 @@
 	key.
 
 --format=<format>::
-	A string that interpolates `%(fieldname)` from a ref being shown
-	and the object it points at.  If `fieldname`
-	is prefixed with an asterisk (`*`) and the ref points
-	at a tag object, use the value for the field in the object
-	which the tag object refers to (instead of the field in the tag object).
-	When unspecified, `<format>` defaults to
-	`%(objectname) SPC %(objecttype) TAB %(refname)`.
-	It also interpolates `%%` to `%`, and `%xx` where `xx`
-	are hex digits interpolates to character with hex code
-	`xx`; for example `%00` interpolates to `\0` (NUL),
-	`%09` to `\t` (TAB) and `%0a` to `\n` (LF).
+	A string that interpolates `%(fieldname)` from a ref being shown and
+	the object it points at. In addition, the string literal `%%`
+	renders as `%` and `%xx` - where `xx` are hex digits - renders as
+	the character with hex code `xx`. For example, `%00` interpolates to
+	`\0` (NUL), `%09` to `\t` (TAB), and `%0a` to `\n` (LF).
++
+When unspecified, `<format>` defaults to `%(objectname) SPC %(objecttype)
+TAB %(refname)`.
 
 --color[=<when>]::
 	Respect any colors specified in the `--format` option. The
@@ -298,6 +295,10 @@
 from the `committer` or `tagger` fields depending on the object type.
 These are intended for working on a mix of annotated and lightweight tags.
 
+For tag objects, a `fieldname` prefixed with an asterisk (`*`) expands to
+the `fieldname` value of the peeled object, rather than that of the tag
+object itself.
+
 Fields that have name-email-date tuple as its value (`author`,
 `committer`, and `tagger`) can be suffixed with `name`, `email`,
 and `date` to extract the named component.  For email fields (`authoremail`,
@@ -358,9 +359,11 @@
 the object referred by the ref does not cause an error.  It
 returns an empty string instead.
 
-As a special case for the date-type fields, you may specify a format for
-the date by adding `:` followed by date format name (see the
-values the `--date` option to linkgit:git-rev-list[1] takes).
+As a special case for the date-type fields, you may specify a format for the
+date by adding `:` followed by date format name (see the values the `--date`
+option to linkgit:git-rev-list[1] takes). If this formatting is provided in
+a `--sort` key, references will be sorted according to the byte-value of the
+formatted string rather than the numeric value of the underlying timestamp.
 
 Some atoms like %(align) and %(if) always require a matching %(end).
 We call them "opening atoms" and sometimes denote them as %($open).
diff --git a/Documentation/git-format-patch.txt b/Documentation/git-format-patch.txt
index 414da6b..728bb38 100644
--- a/Documentation/git-format-patch.txt
+++ b/Documentation/git-format-patch.txt
@@ -17,10 +17,10 @@
 		   [--signature-file=<file>]
 		   [-n | --numbered | -N | --no-numbered]
 		   [--start-number <n>] [--numbered-files]
-		   [--in-reply-to=<message id>] [--suffix=.<sfx>]
+		   [--in-reply-to=<message-id>] [--suffix=.<sfx>]
 		   [--ignore-if-in-upstream] [--always]
 		   [--cover-from-description=<mode>]
-		   [--rfc] [--subject-prefix=<subject prefix>]
+		   [--rfc] [--subject-prefix=<subject-prefix>]
 		   [(--reroll-count|-v) <n>]
 		   [--to=<email>] [--cc=<email>]
 		   [--[no-]cover-letter] [--quiet]
@@ -30,8 +30,8 @@
 		   [--range-diff=<previous> [--creation-factor=<percent>]]
 		   [--filename-max-length=<n>]
 		   [--progress]
-		   [<common diff options>]
-		   [ <since> | <revision range> ]
+		   [<common-diff-options>]
+		   [ <since> | <revision-range> ]
 
 DESCRIPTION
 -----------
@@ -64,7 +64,7 @@
    to the tip of the current branch that are not in the history
    that leads to the <since> to be output.
 
-2. Generic <revision range> expression (see "SPECIFYING
+2. Generic <revision-range> expression (see "SPECIFYING
    REVISIONS" section in linkgit:gitrevisions[7]) means the
    commits in the specified range.
 
@@ -179,9 +179,9 @@
 itself.  If you want `git format-patch` to take care of threading, you
 will want to ensure that threading is disabled for `git send-email`.
 
---in-reply-to=<message id>::
+--in-reply-to=<message-id>::
 	Make the first mail (or all the mails with `--no-thread`) appear as a
-	reply to the given <message id>, which avoids breaking threads to
+	reply to the given <message-id>, which avoids breaking threads to
 	provide a new patch series.
 
 --ignore-if-in-upstream::
@@ -219,9 +219,9 @@
 	Use the contents of <file> instead of the branch's description
 	for generating the cover letter.
 
---subject-prefix=<subject prefix>::
+--subject-prefix=<subject-prefix>::
 	Instead of the standard '[PATCH]' prefix in the subject
-	line, instead use '[<subject prefix>]'. This can be used
+	line, instead use '[<subject-prefix>]'. This can be used
 	to name a patch series, and can be combined with the
 	`--numbered` option.
 +
@@ -403,7 +403,7 @@
 	`format.useAutoBase` configuration.
 
 --root::
-	Treat the revision argument as a <revision range>, even if it
+	Treat the revision argument as a <revision-range>, even if it
 	is just a single commit (that would normally be treated as a
 	<since>).  Note that root commits included in the specified
 	range are always formatted as creation patches, independently
diff --git a/Documentation/git-index-pack.txt b/Documentation/git-index-pack.txt
index 6486620..5a20dee 100644
--- a/Documentation/git-index-pack.txt
+++ b/Documentation/git-index-pack.txt
@@ -79,8 +79,13 @@
 	to force the version for the generated pack index, and to force
 	64-bit index entries on objects located above the given offset.
 
---strict::
-	Die, if the pack contains broken objects or links.
+--strict[=<msg-id>=<severity>...]::
+	Die, if the pack contains broken objects or links. An optional
+	comma-separated list of `<msg-id>=<severity>` can be passed to change
+	the severity of some possible issues, e.g.,
+	 `--strict="missingEmail=ignore,badTagName=error"`. See the entry for the
+	`fsck.<msg-id>` configuration options in linkgit:git-fsck[1] for more
+	information on the possible values of `<msg-id>` and `<severity>`.
 
 --progress-title::
 	For internal use only.
@@ -91,13 +96,18 @@
 --check-self-contained-and-connected::
 	Die if the pack contains broken links. For internal use only.
 
---fsck-objects::
-	For internal use only.
+--fsck-objects[=<msg-id>=<severity>...]::
+	Die if the pack contains broken objects, but unlike `--strict`, don't
+	choke on broken links. If the pack contains a tree pointing to a
+	.gitmodules blob that does not exist, prints the hash of that blob
+	(for the caller to check) after the hash that goes into the name of the
+	pack/idx file (see "Notes").
 +
-Die if the pack contains broken objects. If the pack contains a tree
-pointing to a .gitmodules blob that does not exist, prints the hash of
-that blob (for the caller to check) after the hash that goes into the
-name of the pack/idx file (see "Notes").
+An optional comma-separated list of `<msg-id>=<severity>` can be passed to
+change the severity of some possible issues, e.g.,
+`--fsck-objects="missingEmail=ignore,badTagName=ignore"`. See the entry for the
+`fsck.<msg-id>` configuration options in linkgit:git-fsck[1] for more
+information on the possible values of `<msg-id>` and `<severity>`.
 
 --threads=<n>::
 	Specifies the number of threads to spawn when resolving
diff --git a/Documentation/git-init.txt b/Documentation/git-init.txt
index 6f0d297..e8dc645 100644
--- a/Documentation/git-init.txt
+++ b/Documentation/git-init.txt
@@ -11,6 +11,7 @@
 [verse]
 'git init' [-q | --quiet] [--bare] [--template=<template-directory>]
 	  [--separate-git-dir <git-dir>] [--object-format=<format>]
+	  [--ref-format=<format>]
 	  [-b <branch-name> | --initial-branch=<branch-name>]
 	  [--shared[=<permissions>]] [<directory>]
 
@@ -57,6 +58,12 @@
 +
 include::object-format-disclaimer.txt[]
 
+--ref-format=<format>::
+
+Specify the given ref storage format for the repository. The valid values are:
++
+include::ref-storage-format.txt[]
+
 --template=<template-directory>::
 
 Specify the directory from which templates will be used.  (See the "TEMPLATE
diff --git a/Documentation/git-ls-files.txt b/Documentation/git-ls-files.txt
index f65a8cd..d08c7da 100644
--- a/Documentation/git-ls-files.txt
+++ b/Documentation/git-ls-files.txt
@@ -119,8 +119,10 @@
 
 --exclude-per-directory=<file>::
 	Read additional exclude patterns that apply only to the
-	directory and its subdirectories in <file>.  Deprecated; use
-	--exclude-standard instead.
+	directory and its subdirectories in <file>.  If you are
+	trying to emulate the way Porcelain commands work, using
+	the `--exclude-standard` option instead is easier and more
+	thorough.
 
 --exclude-standard::
 	Add the standard Git exclusions: .git/info/exclude, .gitignore
@@ -298,9 +300,8 @@
 flags --others or --ignored are specified.  linkgit:gitignore[5]
 specifies the format of exclude patterns.
 
-Generally, you should just use --exclude-standard, but for historical
-reasons the exclude patterns can be specified from the following
-places, in order:
+These exclude patterns can be specified from the following places,
+in order:
 
   1. The command-line flag --exclude=<pattern> specifies a
      single pattern.  Patterns are ordered in the same order
@@ -322,6 +323,18 @@
 by --exclude-per-directory is relative to the directory that the
 pattern file appears in.
 
+Generally, you should be able to use `--exclude-standard` when you
+want the exclude rules applied the same way as what Porcelain
+commands do.  To emulate what `--exclude-standard` specifies, you
+can give `--exclude-per-directory=.gitignore`, and then specify:
+
+  1. The file specified by the `core.excludesfile` configuration
+     variable, if exists, or the `$XDG_CONFIG_HOME/git/ignore` file.
+
+  2. The `$GIT_DIR/info/exclude` file.
+
+via the `--exclude-from=` option.
+
 SEE ALSO
 --------
 linkgit:git-read-tree[1], linkgit:gitignore[5]
diff --git a/Documentation/git-merge-file.txt b/Documentation/git-merge-file.txt
index 6a081ea..71915a0 100644
--- a/Documentation/git-merge-file.txt
+++ b/Documentation/git-merge-file.txt
@@ -92,6 +92,12 @@
 	Instead of leaving conflicts in the file, resolve conflicts
 	favouring our (or their or both) side of the lines.
 
+--diff-algorithm={patience|minimal|histogram|myers}::
+	Use a different diff algorithm while merging. The current default is "myers",
+	but selecting more recent algorithm such as "histogram" can help
+	avoid mismerges that occur due to unimportant matching lines
+	(such as braces from distinct functions). See also
+	linkgit:git-diff[1] `--diff-algorithm`.
 
 EXAMPLES
 --------
diff --git a/Documentation/git-mv.txt b/Documentation/git-mv.txt
index 7f991a3..dc1bf61 100644
--- a/Documentation/git-mv.txt
+++ b/Documentation/git-mv.txt
@@ -16,7 +16,7 @@
 Move or rename a file, directory, or symlink.
 
  git mv [-v] [-f] [-n] [-k] <source> <destination>
- git mv [-v] [-f] [-n] [-k] <source> ... <destination directory>
+ git mv [-v] [-f] [-n] [-k] <source> ... <destination-directory>
 
 In the first form, it renames <source>, which must exist and be either
 a file, symlink or directory, to <destination>.
diff --git a/Documentation/git-notes.txt b/Documentation/git-notes.txt
index f8310e5..c9221a6 100644
--- a/Documentation/git-notes.txt
+++ b/Documentation/git-notes.txt
@@ -56,7 +56,7 @@
 list::
 	List the notes object for a given object. If no object is
 	given, show a list of all note objects and the objects they
-	annotate (in the format "<note object> <annotated object>").
+	annotate (in the format "<note-object> <annotated-object>").
 	This is the default subcommand if no subcommand is given.
 
 add::
diff --git a/Documentation/git-rebase.txt b/Documentation/git-rebase.txt
index af05708..0620652 100644
--- a/Documentation/git-rebase.txt
+++ b/Documentation/git-rebase.txt
@@ -589,21 +589,27 @@
 
 --autosquash::
 --no-autosquash::
-	When the commit log message begins with "squash! ..." or "fixup! ..."
-	or "amend! ...", and there is already a commit in the todo list that
-	matches the same `...`, automatically modify the todo list of
-	`rebase -i`, so that the commit marked for squashing comes right after
-	the commit to be modified, and change the action of the moved commit
-	from `pick` to `squash` or `fixup` or `fixup -C` respectively. A commit
-	matches the `...` if the commit subject matches, or if the `...` refers
-	to the commit's hash. As a fall-back, partial matches of the commit
-	subject work, too. The recommended way to create fixup/amend/squash
-	commits is by using the `--fixup`, `--fixup=amend:` or `--fixup=reword:`
-	and `--squash` options respectively of linkgit:git-commit[1].
+	Automatically squash commits with specially formatted messages into
+	previous commits being rebased.  If a commit message starts with
+	"squash! ", "fixup! " or "amend! ", the remainder of the subject line
+	is taken as a commit specifier, which matches a previous commit if it
+	matches the subject line or the hash of that commit.  If no commit
+	matches fully, matches of the specifier with the start of commit
+	subjects are considered.
 +
-If the `--autosquash` option is enabled by default using the
-configuration variable `rebase.autoSquash`, this option can be
-used to override and disable this setting.
+In the rebase todo list, the actions of squash, fixup and amend commits are
+changed from `pick` to `squash`, `fixup` or `fixup -C`, respectively, and they
+are moved right after the commit they modify.  The `--interactive` option can
+be used to review and edit the todo list before proceeding.
++
+The recommended way to create commits with squash markers is by using the
+`--squash`, `--fixup`, `--fixup=amend:` or `--fixup=reword:` options of
+linkgit:git-commit[1], which take the target commit as an argument and
+automatically fill in the subject line of the new commit from that.
++
+Settting configuration variable `rebase.autoSquash` to true enables
+auto-squashing by default for interactive rebase.  The `--no-autosquash`
+option can be used to override that setting.
 +
 See also INCOMPATIBLE OPTIONS below.
 
diff --git a/Documentation/git-replace.txt b/Documentation/git-replace.txt
index 4f25712..0a65460 100644
--- a/Documentation/git-replace.txt
+++ b/Documentation/git-replace.txt
@@ -114,11 +114,11 @@
 The following formats are available:
 
 * 'short':
-	<replaced sha1>
+	<replaced-sha1>
 * 'medium':
-	<replaced sha1> -> <replacement sha1>
+	<replaced-sha1> -> <replacement-sha1>
 * 'long':
-	<replaced sha1> (<replaced type>) -> <replacement sha1> (<replacement type>)
+	<replaced-sha1> (<replaced-type>) -> <replacement-sha1> (<replacement-type>)
 
 CREATING REPLACEMENT OBJECTS
 ----------------------------
diff --git a/Documentation/git-replay.txt b/Documentation/git-replay.txt
new file mode 100644
index 0000000..f6c269c
--- /dev/null
+++ b/Documentation/git-replay.txt
@@ -0,0 +1,127 @@
+git-replay(1)
+=============
+
+NAME
+----
+git-replay - EXPERIMENTAL: Replay commits on a new base, works with bare repos too
+
+
+SYNOPSIS
+--------
+[verse]
+(EXPERIMENTAL!) 'git replay' ([--contained] --onto <newbase> | --advance <branch>) <revision-range>...
+
+DESCRIPTION
+-----------
+
+Takes ranges of commits and replays them onto a new location. Leaves
+the working tree and the index untouched, and updates no references.
+The output of this command is meant to be used as input to
+`git update-ref --stdin`, which would update the relevant branches
+(see the OUTPUT section below).
+
+THIS COMMAND IS EXPERIMENTAL. THE BEHAVIOR MAY CHANGE.
+
+OPTIONS
+-------
+
+--onto <newbase>::
+	Starting point at which to create the new commits.  May be any
+	valid commit, and not just an existing branch name.
++
+When `--onto` is specified, the update-ref command(s) in the output will
+update the branch(es) in the revision range to point at the new
+commits, similar to the way how `git rebase --update-refs` updates
+multiple branches in the affected range.
+
+--advance <branch>::
+	Starting point at which to create the new commits; must be a
+	branch name.
++
+When `--advance` is specified, the update-ref command(s) in the output
+will update the branch passed as an argument to `--advance` to point at
+the new commits (in other words, this mimics a cherry-pick operation).
+
+<revision-range>::
+	Range of commits to replay. More than one <revision-range> can
+	be passed, but in `--advance <branch>` mode, they should have
+	a single tip, so that it's clear where <branch> should point
+	to. See "Specifying Ranges" in linkgit:git-rev-parse and the
+	"Commit Limiting" options below.
+
+include::rev-list-options.txt[]
+
+OUTPUT
+------
+
+When there are no conflicts, the output of this command is usable as
+input to `git update-ref --stdin`.  It is of the form:
+
+	update refs/heads/branch1 ${NEW_branch1_HASH} ${OLD_branch1_HASH}
+	update refs/heads/branch2 ${NEW_branch2_HASH} ${OLD_branch2_HASH}
+	update refs/heads/branch3 ${NEW_branch3_HASH} ${OLD_branch3_HASH}
+
+where the number of refs updated depends on the arguments passed and
+the shape of the history being replayed.  When using `--advance`, the
+number of refs updated is always one, but for `--onto`, it can be one
+or more (rebasing multiple branches simultaneously is supported).
+
+EXIT STATUS
+-----------
+
+For a successful, non-conflicted replay, the exit status is 0.  When
+the replay has conflicts, the exit status is 1.  If the replay is not
+able to complete (or start) due to some kind of error, the exit status
+is something other than 0 or 1.
+
+EXAMPLES
+--------
+
+To simply rebase `mybranch` onto `target`:
+
+------------
+$ git replay --onto target origin/main..mybranch
+update refs/heads/mybranch ${NEW_mybranch_HASH} ${OLD_mybranch_HASH}
+------------
+
+To cherry-pick the commits from mybranch onto target:
+
+------------
+$ git replay --advance target origin/main..mybranch
+update refs/heads/target ${NEW_target_HASH} ${OLD_target_HASH}
+------------
+
+Note that the first two examples replay the exact same commits and on
+top of the exact same new base, they only differ in that the first
+provides instructions to make mybranch point at the new commits and
+the second provides instructions to make target point at them.
+
+What if you have a stack of branches, one depending upon another, and
+you'd really like to rebase the whole set?
+
+------------
+$ git replay --contained --onto origin/main origin/main..tipbranch
+update refs/heads/branch1 ${NEW_branch1_HASH} ${OLD_branch1_HASH}
+update refs/heads/branch2 ${NEW_branch2_HASH} ${OLD_branch2_HASH}
+update refs/heads/tipbranch ${NEW_tipbranch_HASH} ${OLD_tipbranch_HASH}
+------------
+
+When calling `git replay`, one does not need to specify a range of
+commits to replay using the syntax `A..B`; any range expression will
+do:
+
+------------
+$ git replay --onto origin/main ^base branch1 branch2 branch3
+update refs/heads/branch1 ${NEW_branch1_HASH} ${OLD_branch1_HASH}
+update refs/heads/branch2 ${NEW_branch2_HASH} ${OLD_branch2_HASH}
+update refs/heads/branch3 ${NEW_branch3_HASH} ${OLD_branch3_HASH}
+------------
+
+This will simultaneously rebase `branch1`, `branch2`, and `branch3`,
+all commits they have since `base`, playing them on top of
+`origin/main`. These three branches may have commits on top of `base`
+that they have in common, but that does not need to be the case.
+
+GIT
+---
+Part of the linkgit:git[1] suite
diff --git a/Documentation/git-rev-parse.txt b/Documentation/git-rev-parse.txt
index 912fab9..546faf9 100644
--- a/Documentation/git-rev-parse.txt
+++ b/Documentation/git-rev-parse.txt
@@ -307,6 +307,9 @@
 	input, multiple algorithms may be printed, space-separated.
 	If not specified, the default is "storage".
 
+--show-ref-format::
+	Show the reference storage format used for the repository.
+
 
 Other Options
 ~~~~~~~~~~~~~
diff --git a/Documentation/git-revert.txt b/Documentation/git-revert.txt
index cbe0208..568925d 100644
--- a/Documentation/git-revert.txt
+++ b/Documentation/git-revert.txt
@@ -116,7 +116,7 @@
 
 --reference::
 	Instead of starting the body of the log message with "This
-	reverts <full object name of the commit being reverted>.",
+	reverts <full-object-name-of-the-commit-being-reverted>.",
 	refer to the commit using "--pretty=reference" format
 	(cf. linkgit:git-log[1]).  The `revert.reference`
 	configuration variable can be used to enable this option by
@@ -149,7 +149,7 @@
 _strongly_ recommended to explain why the original commit is being
 reverted.
 In addition, repeatedly reverting reverts will result in increasingly
-unwieldy subject lines, for example 'Reapply "Reapply "<original subject>""'.
+unwieldy subject lines, for example 'Reapply "Reapply "<original-subject>""'.
 Please consider rewording these to be shorter and more unique.
 
 CONFIGURATION
diff --git a/Documentation/git-send-email.txt b/Documentation/git-send-email.txt
index 30deb7f..d1ef6a2 100644
--- a/Documentation/git-send-email.txt
+++ b/Documentation/git-send-email.txt
@@ -10,7 +10,7 @@
 --------
 [verse]
 'git send-email' [<options>] <file|directory>...
-'git send-email' [<options>] <format-patch options>
+'git send-email' [<options>] <format-patch-options>
 'git send-email' --dump-aliases
 
 
diff --git a/Documentation/git-status.txt b/Documentation/git-status.txt
index 10fecc5..4dbb883 100644
--- a/Documentation/git-status.txt
+++ b/Documentation/git-status.txt
@@ -309,7 +309,7 @@
 ------------------------------------------------------------
 # branch.oid <commit> | (initial)        Current commit.
 # branch.head <branch> | (detached)      Current branch.
-# branch.upstream <upstream_branch>      If upstream is set.
+# branch.upstream <upstream-branch>      If upstream is set.
 # branch.ab +<ahead> -<behind>           If upstream is set and
 					 the commit is present.
 ------------------------------------------------------------
@@ -502,7 +502,7 @@
 	usually worth the additional size.
 
 * `core.untrackedCache=true` and `core.fsmonitor=true` or
-	`core.fsmonitor=<hook_command_pathname>` (see
+	`core.fsmonitor=<hook-command-pathname>` (see
 	linkgit:git-update-index[1]): enable both the untracked cache
 	and FSMonitor features and only search directories that have
 	been modified since the previous `git status` command.  This
diff --git a/Documentation/git-submodule.txt b/Documentation/git-submodule.txt
index 6957306..ca0347a 100644
--- a/Documentation/git-submodule.txt
+++ b/Documentation/git-submodule.txt
@@ -136,7 +136,7 @@
 that use linkgit:git-rm[1] instead. See linkgit:gitsubmodules[7] for removal
 options.
 
-update [--init] [--remote] [-N|--no-fetch] [--[no-]recommend-shallow] [-f|--force] [--checkout|--rebase|--merge] [--reference <repository>] [--depth <depth>] [--recursive] [--jobs <n>] [--[no-]single-branch] [--filter <filter spec>] [--] [<path>...]::
+update [--init] [--remote] [-N|--no-fetch] [--[no-]recommend-shallow] [-f|--force] [--checkout|--rebase|--merge] [--reference <repository>] [--depth <depth>] [--recursive] [--jobs <n>] [--[no-]single-branch] [--filter <filter-spec>] [--] [<path>...]::
 +
 --
 Update the registered submodules to match what the superproject
@@ -185,7 +185,7 @@
 If `--recursive` is specified, this command will recurse into the
 registered submodules, and update any nested submodules within.
 
-If `--filter <filter spec>` is specified, the given partial clone filter will be
+If `--filter <filter-spec>` is specified, the given partial clone filter will be
 applied to the submodule. See linkgit:git-rev-list[1] for details on filter
 specifications.
 --
diff --git a/Documentation/git-svn.txt b/Documentation/git-svn.txt
index 4e92308..43c68c2 100644
--- a/Documentation/git-svn.txt
+++ b/Documentation/git-svn.txt
@@ -37,12 +37,12 @@
 	argument.  Normally this command initializes the current
 	directory.
 
--T<trunk_subdir>;;
---trunk=<trunk_subdir>;;
--t<tags_subdir>;;
---tags=<tags_subdir>;;
--b<branches_subdir>;;
---branches=<branches_subdir>;;
+-T<trunk-subdir>;;
+--trunk=<trunk-subdir>;;
+-t<tags-subdir>;;
+--tags=<tags-subdir>;;
+-b<branches-subdir>;;
+--branches=<branches-subdir>;;
 -s;;
 --stdlayout;;
 	These are optional command-line options for init.  Each of
@@ -726,9 +726,9 @@
 	when tracking a single URL.  The 'log' and 'dcommit' commands
 	no longer require this switch as an argument.
 
--R<remote name>::
---svn-remote <remote name>::
-	Specify the [svn-remote "<remote name>"] section to use,
+-R<remote-name>::
+--svn-remote <remote-name>::
+	Specify the [svn-remote "<remote-name>"] section to use,
 	this allows SVN multiple repositories to be tracked.
 	Default: "svn"
 
diff --git a/Documentation/git-switch.txt b/Documentation/git-switch.txt
index 3e23a82..f38e4c8 100644
--- a/Documentation/git-switch.txt
+++ b/Documentation/git-switch.txt
@@ -59,13 +59,18 @@
 -c <new-branch>::
 --create <new-branch>::
 	Create a new branch named `<new-branch>` starting at
-	`<start-point>` before switching to the branch. This is a
-	convenient shortcut for:
+	`<start-point>` before switching to the branch. This is the
+	transactional equivalent of
 +
 ------------
 $ git branch <new-branch>
 $ git switch <new-branch>
 ------------
++
+that is to say, the branch is not reset/created unless "git switch" is
+successful (e.g., when the branch is in use in another worktree, not
+just the current branch stays the same, but the branch is not reset to
+the start-point, either).
 
 -C <new-branch>::
 --force-create <new-branch>::
diff --git a/Documentation/git-tag.txt b/Documentation/git-tag.txt
index d42efb3..5fe519c 100644
--- a/Documentation/git-tag.txt
+++ b/Documentation/git-tag.txt
@@ -224,7 +224,7 @@
 
 -------------------------------------
 [user]
-    signingKey = <gpg-key_id>
+    signingKey = <gpg-key-id>
 -------------------------------------
 
 `pager.tag` is only respected when listing tags, i.e., when `-l` is
diff --git a/Documentation/git.txt b/Documentation/git.txt
index 962887f..0d25224 100644
--- a/Documentation/git.txt
+++ b/Documentation/git.txt
@@ -202,7 +202,7 @@
 	Do not perform optional operations that require locks. This is
 	equivalent to setting the `GIT_OPTIONAL_LOCKS` to `0`.
 
---list-cmds=group[,group...]::
+--list-cmds=<group>[,<group>...]::
 	List commands by group. This is an internal/experimental
 	option and may change or be removed in the future. Supported
 	groups are: builtins, parseopt (builtin commands that use
@@ -556,6 +556,11 @@
 	is always used. The default is "sha1".
 	See `--object-format` in linkgit:git-init[1].
 
+`GIT_DEFAULT_REF_FORMAT`::
+	If this variable is set, the default reference backend format for new
+	repositories will be set to this value. The default is "files".
+	See `--ref-format` in linkgit:git-init[1].
+
 Git Commits
 ~~~~~~~~~~~
 `GIT_AUTHOR_NAME`::
@@ -837,7 +842,7 @@
 collisions).
 +
 In addition, if the variable is set to
-`af_unix:[<socket_type>:]<absolute-pathname>`, Git will try
+`af_unix:[<socket-type>:]<absolute-pathname>`, Git will try
 to open the path as a Unix Domain Socket.  The socket type
 can be either `stream` or `dgram`.
 +
diff --git a/Documentation/gitattributes.txt b/Documentation/gitattributes.txt
index 8c1793c..4338d02 100644
--- a/Documentation/gitattributes.txt
+++ b/Documentation/gitattributes.txt
@@ -100,6 +100,21 @@
 the name of the attribute prefixed with an exclamation point `!`.
 
 
+RESERVED BUILTIN_* ATTRIBUTES
+-----------------------------
+
+builtin_* is a reserved namespace for builtin attribute values. Any
+user defined attributes under this namespace will be ignored and
+trigger a warning.
+
+`builtin_objectmode`
+~~~~~~~~~~~~~~~~~~~~
+This attribute is for filtering files by their file bit modes (40000,
+120000, 160000, 100755, 100644). e.g. ':(attr:builtin_objectmode=160000)'.
+You may also check these values with `git check-attr builtin_objectmode -- <file>`.
+If the object is not in the index `git check-attr --cached` will return unspecified.
+
+
 EFFECTS
 -------
 
@@ -1122,11 +1137,11 @@
 name.
 
 The `merge.*.driver` variable's value is used to construct a
-command to run to merge ancestor's version (`%O`), current
+command to run to common ancestor's version (`%O`), current
 version (`%A`) and the other branches' version (`%B`).  These
 three tokens are replaced with the names of temporary files that
 hold the contents of these versions when the command line is
-built. Additionally, %L will be replaced with the conflict marker
+built. Additionally, `%L` will be replaced with the conflict marker
 size (see below).
 
 The merge driver is expected to leave the result of the merge in
@@ -1144,8 +1159,9 @@
 internal merge and the final merge.
 
 The merge driver can learn the pathname in which the merged result
-will be stored via placeholder `%P`.
-
+will be stored via placeholder `%P`. The conflict labels to be used
+for the common ancestor, local head and other head can be passed by
+using '%S', '%X' and '%Y` respectively.
 
 `conflict-marker-size`
 ^^^^^^^^^^^^^^^^^^^^^^
diff --git a/Documentation/gitdiffcore.txt b/Documentation/gitdiffcore.txt
index 3cda2e0..642c512 100644
--- a/Documentation/gitdiffcore.txt
+++ b/Documentation/gitdiffcore.txt
@@ -245,20 +245,20 @@
 
 This transformation limits the set of filepairs to those that change
 specified strings between the preimage and the postimage in a certain
-way.  -S<block of text> and -G<regular expression> options are used to
+way.  -S<block-of-text> and -G<regular-expression> options are used to
 specify different ways these strings are sought.
 
-"-S<block of text>" detects filepairs whose preimage and postimage
+"-S<block-of-text>" detects filepairs whose preimage and postimage
 have different number of occurrences of the specified block of text.
 By definition, it will not detect in-file moves.  Also, when a
 changeset moves a file wholesale without affecting the interesting
 string, diffcore-rename kicks in as usual, and `-S` omits the filepair
 (since the number of occurrences of that string didn't change in that
 rename-detected filepair).  When used with `--pickaxe-regex`, treat
-the <block of text> as an extended POSIX regular expression to match,
+the <block-of-text> as an extended POSIX regular expression to match,
 instead of a literal string.
 
-"-G<regular expression>" (mnemonic: grep) detects filepairs whose
+"-G<regular-expression>" (mnemonic: grep) detects filepairs whose
 textual diff has an added or a deleted line that matches the given
 regular expression.  This means that it will detect in-file (or what
 rename-detection considers the same file) moves, which is noise.  The
diff --git a/Documentation/gitformat-index.txt b/Documentation/gitformat-index.txt
index 0773e5c..145cace 100644
--- a/Documentation/gitformat-index.txt
+++ b/Documentation/gitformat-index.txt
@@ -386,8 +386,8 @@
 	long, "REUC" extension that is M-bytes long, followed by "EOIE",
 	then the hash would be:
 
-	Hash("TREE" + <binary representation of N> +
-		"REUC" + <binary representation of M>)
+	Hash("TREE" + <binary-representation-of-N> +
+		"REUC" + <binary-representation-of-M>)
 
 == Index Entry Offset Table
 
diff --git a/Documentation/gitformat-pack.txt b/Documentation/gitformat-pack.txt
index 9fcb29a..d6ae229 100644
--- a/Documentation/gitformat-pack.txt
+++ b/Documentation/gitformat-pack.txt
@@ -396,6 +396,15 @@
 	    is padded at the end with between 0 and 3 NUL bytes to make the
 	    chunk size a multiple of 4 bytes.
 
+	Bitmapped Packfiles (ID: {'B', 'T', 'M', 'P'})
+	    Stores a table of two 4-byte unsigned integers in network order.
+	    Each table entry corresponds to a single pack (in the order that
+	    they appear above in the `PNAM` chunk). The values for each table
+	    entry are as follows:
+	    - The first bit position (in pseudo-pack order, see below) to
+	      contain an object from that pack.
+	    - The number of bits whose objects are selected from that pack.
+
 	OID Fanout (ID: {'O', 'I', 'D', 'F'})
 	    The ith entry, F[i], stores the number of OIDs with first
 	    byte at most i. Thus F[255] stores the total
@@ -509,6 +518,73 @@
 The MIDX's reverse index is stored in the optional 'RIDX' chunk within
 the MIDX itself.
 
+=== `BTMP` chunk
+
+The Bitmapped Packfiles (`BTMP`) chunk encodes additional information
+about the objects in the multi-pack index's reachability bitmap. Recall
+that objects from the MIDX are arranged in "pseudo-pack" order (see
+above) for reachability bitmaps.
+
+From the example above, suppose we have packs "a", "b", and "c", with
+10, 15, and 20 objects, respectively. In pseudo-pack order, those would
+be arranged as follows:
+
+    |a,0|a,1|...|a,9|b,0|b,1|...|b,14|c,0|c,1|...|c,19|
+
+When working with single-pack bitmaps (or, equivalently, multi-pack
+reachability bitmaps with a preferred pack), linkgit:git-pack-objects[1]
+performs ``verbatim'' reuse, attempting to reuse chunks of the bitmapped
+or preferred packfile instead of adding objects to the packing list.
+
+When a chunk of bytes is reused from an existing pack, any objects
+contained therein do not need to be added to the packing list, saving
+memory and CPU time. But a chunk from an existing packfile can only be
+reused when the following conditions are met:
+
+  - The chunk contains only objects which were requested by the caller
+    (i.e. does not contain any objects which the caller didn't ask for
+    explicitly or implicitly).
+
+  - All objects stored in non-thin packs as offset- or reference-deltas
+    also include their base object in the resulting pack.
+
+The `BTMP` chunk encodes the necessary information in order to implement
+multi-pack reuse over a set of packfiles as described above.
+Specifically, the `BTMP` chunk encodes three pieces of information (all
+32-bit unsigned integers in network byte-order) for each packfile `p`
+that is stored in the MIDX, as follows:
+
+`bitmap_pos`:: The first bit position (in pseudo-pack order) in the
+  multi-pack index's reachability bitmap occupied by an object from `p`.
+
+`bitmap_nr`:: The number of bit positions (including the one at
+  `bitmap_pos`) that encode objects from that pack `p`.
+
+For example, the `BTMP` chunk corresponding to the above example (with
+packs ``a'', ``b'', and ``c'') would look like:
+
+[cols="1,2,2"]
+|===
+| |`bitmap_pos` |`bitmap_nr`
+
+|packfile ``a''
+|`0`
+|`10`
+
+|packfile ``b''
+|`10`
+|`15`
+
+|packfile ``c''
+|`25`
+|`20`
+|===
+
+With this information in place, we can treat each packfile as
+individually reusable in the same fashion as verbatim pack reuse is
+performed on individual packs prior to the implementation of the `BTMP`
+chunk.
+
 == cruft packs
 
 The cruft packs feature offer an alternative to Git's traditional mechanism of
diff --git a/Documentation/githooks.txt b/Documentation/githooks.txt
index 883982e..37f91d5 100644
--- a/Documentation/githooks.txt
+++ b/Documentation/githooks.txt
@@ -243,7 +243,7 @@
 Information about what is to be pushed is provided on the hook's standard
 input with lines of the form:
 
-  <local ref> SP <local object name> SP <remote ref> SP <remote object name> LF
+  <local-ref> SP <local-object-name> SP <remote-ref> SP <remote-object-name> LF
 
 For instance, if the command +git push origin master:foreign+ were run the
 hook would receive a line like the following:
@@ -251,9 +251,9 @@
   refs/heads/master 67890 refs/heads/foreign 12345
 
 although the full object name would be supplied.  If the foreign ref does not
-yet exist the `<remote object name>` will be the all-zeroes object name.  If a
-ref is to be deleted, the `<local ref>` will be supplied as `(delete)` and the
-`<local object name>` will be the all-zeroes object name.  If the local commit
+yet exist the `<remote-object-name>` will be the all-zeroes object name.  If a
+ref is to be deleted, the `<local-ref>` will be supplied as `(delete)` and the
+`<local-object-name>` will be the all-zeroes object name.  If the local commit
 was specified by something other than a name which could be expanded (such as
 `HEAD~`, or an object name) it will be supplied as it was originally given.
 
diff --git a/Documentation/gitk.txt b/Documentation/gitk.txt
index c2213bb..35b3996 100644
--- a/Documentation/gitk.txt
+++ b/Documentation/gitk.txt
@@ -8,7 +8,7 @@
 SYNOPSIS
 --------
 [verse]
-'gitk' [<options>] [<revision range>] [--] [<path>...]
+'gitk' [<options>] [<revision-range>] [--] [<path>...]
 
 DESCRIPTION
 -----------
@@ -124,7 +124,7 @@
 	range to show.  The command is expected to print on its
 	standard output a list of additional revisions to be shown,
 	one per line.  Use this instead of explicitly specifying a
-	'<revision range>' if the set of commits to show may vary
+	'<revision-range>' if the set of commits to show may vary
 	between refreshes.
 
 --select-commit=<ref>::
diff --git a/Documentation/gitprotocol-capabilities.txt b/Documentation/gitprotocol-capabilities.txt
index d6c6eff..2cf7735 100644
--- a/Documentation/gitprotocol-capabilities.txt
+++ b/Documentation/gitprotocol-capabilities.txt
@@ -378,7 +378,7 @@
 or partial fetch and request that the server omit various objects
 from the packfile.
 
-session-id=<session id>
+session-id=<session-id>
 -----------------------
 
 The server may advertise a session ID that can be used to identify this process
diff --git a/Documentation/gitprotocol-http.txt b/Documentation/gitprotocol-http.txt
index 836b349..ec40a55 100644
--- a/Documentation/gitprotocol-http.txt
+++ b/Documentation/gitprotocol-http.txt
@@ -391,14 +391,14 @@
 
 C: Send one `$GIT_URL/git-upload-pack` request:
 
-   C: 0032want <want #1>...............................
-   C: 0032want <want #2>...............................
+   C: 0032want <want-#1>...............................
+   C: 0032want <want-#2>...............................
    ....
-   C: 0032have <common #1>.............................
-   C: 0032have <common #2>.............................
+   C: 0032have <common-#1>.............................
+   C: 0032have <common-#2>.............................
    ....
-   C: 0032have <have #1>...............................
-   C: 0032have <have #2>...............................
+   C: 0032have <have-#1>...............................
+   C: 0032have <have-#2>...............................
    ....
    C: 0000
 
@@ -512,7 +512,7 @@
 the id obtained through ref discovery as old_id.
 
   update_request  =  command_list
-		     "PACK" <binary data>
+		     "PACK" <binary-data>
 
   command_list    =  PKT-LINE(command NUL cap_list LF)
 		     *(command_pkt)
diff --git a/Documentation/gitprotocol-v2.txt b/Documentation/gitprotocol-v2.txt
index 8c1e7c6..0b800ab 100644
--- a/Documentation/gitprotocol-v2.txt
+++ b/Documentation/gitprotocol-v2.txt
@@ -199,7 +199,7 @@
 
 Additional features not supported in the base command will be advertised
 as the value of the command in the capability advertisement in the form
-of a space separated list of features: "<command>=<feature 1> <feature 2>"
+of a space separated list of features: "<command>=<feature-1> <feature-2>"
 
 ls-refs takes in the following arguments:
 
@@ -245,7 +245,7 @@
 
 Additional features not supported in the base command will be advertised
 as the value of the command in the capability advertisement in the form
-of a space separated list of features: "<command>=<feature 1> <feature 2>"
+of a space separated list of features: "<command>=<feature-1> <feature-2>"
 
 A `fetch` request can take the following arguments:
 
@@ -363,7 +363,7 @@
 addition of the 'packfile-uris' section in the server's response as
 explained below.
 
-    packfile-uris <comma-separated list of protocols>
+    packfile-uris <comma-separated-list-of-protocols>
 	Indicates to the server that the client is willing to receive
 	URIs of any of the given protocols in place of objects in the
 	sent packfile. Before performing the connectivity check, the
@@ -534,7 +534,7 @@
 only handle SHA-1.  If the client would like to use a hash algorithm other than
 SHA-1, it should specify its object-format string.
 
-session-id=<session id>
+session-id=<session-id>
 ~~~~~~~~~~~~~~~~~~~~~~~
 
 The server may advertise a session ID that can be used to identify this process
diff --git a/Documentation/gitsubmodules.txt b/Documentation/gitsubmodules.txt
index 8400d59..f7b5a25 100644
--- a/Documentation/gitsubmodules.txt
+++ b/Documentation/gitsubmodules.txt
@@ -151,7 +151,7 @@
 is not affected. This can be undone using `git submodule init`.
 
  * Deleted submodule: A submodule can be deleted by running
-`git rm <submodule path> && git commit`. This can be undone
+`git rm <submodule-path> && git commit`. This can be undone
 using `git revert`.
 +
 The deletion removes the superproject's tracking data, which are
@@ -229,7 +229,7 @@
   git submodule add <URL> <path>
 
   # Occasionally update the submodule to a new version:
-  git -C <path> checkout <new version>
+  git -C <path> checkout <new-version>
   git add <path>
   git commit -m "update submodule to new version"
 
diff --git a/Documentation/gitweb.conf.txt b/Documentation/gitweb.conf.txt
index 59fc1d2..8598358 100644
--- a/Documentation/gitweb.conf.txt
+++ b/Documentation/gitweb.conf.txt
@@ -343,7 +343,7 @@
 	Label for the "home link" at the top of all pages, leading to `$home_link`
 	(usually the main gitweb page, which contains the projects list).  It is
 	used as the first component of gitweb's "breadcrumb trail":
-	`<home link> / <project> / <action>`.  Can be set at build time using
+	`<home-link> / <project> / <action>`.  Can be set at build time using
 	the `GITWEB_HOME_LINK_STR` variable.  By default it is set to "projects",
 	as this link leads to the list of projects.  Another popular choice is to
 	set it to the name of site.  Note that it is treated as raw HTML so it
@@ -604,9 +604,9 @@
 Each `%feature` hash element is a hash reference and has the following
 structure:
 ----------------------------------------------------------------------
-"<feature_name>" => {
-	"sub" => <feature-sub (subroutine)>,
-	"override" => <allow-override (boolean)>,
+"<feature-name>" => {
+	"sub" => <feature-sub-(subroutine)>,
+	"override" => <allow-override-(boolean)>,
 	"default" => [ <options>... ]
 },
 ----------------------------------------------------------------------
@@ -614,7 +614,7 @@
 features the structure of appropriate `%feature` hash element has a simpler
 form:
 ----------------------------------------------------------------------
-"<feature_name>" => {
+"<feature-name>" => {
 	"override" => 0,
 	"default" => [ <options>... ]
 },
diff --git a/Documentation/gitweb.txt b/Documentation/gitweb.txt
index ddd4a0f..56d24a3 100644
--- a/Documentation/gitweb.txt
+++ b/Documentation/gitweb.txt
@@ -305,7 +305,7 @@
 looks like this:
 
 -----------------------------------------------------------------------
-.../gitweb.cgi/<repo>/<action>/<revision_from>:/<path_from>..<revision_to>:/<path_to>?<arguments>
+.../gitweb.cgi/<repo>/<action>/<revision-from>:/<path-from>..<revision-to>:/<path-to>?<arguments>
 -----------------------------------------------------------------------
 
 
diff --git a/Documentation/glossary-content.txt b/Documentation/glossary-content.txt
index f7d98c1..d71b199 100644
--- a/Documentation/glossary-content.txt
+++ b/Documentation/glossary-content.txt
@@ -638,6 +638,20 @@
 	An <<def_object,object>> used to temporarily store the contents of a
 	<<def_dirty,dirty>> working directory and the index for future reuse.
 
+[[def_special_ref]]special ref::
+	A ref that has different semantics than normal refs. These refs can be
+	accessed via normal Git commands but may not behave the same as a
+	normal ref in some cases.
++
+The following special refs are known to Git:
+
+ - "`FETCH_HEAD`" is written by linkgit:git-fetch[1] or linkgit:git-pull[1]. It
+   may refer to multiple object IDs. Each object ID is annotated with metadata
+   indicating where it was fetched from and its fetch status.
+
+ - "`MERGE_HEAD`" is written by linkgit:git-merge[1] when resolving merge
+   conflicts. It contains all commit IDs which are being merged.
+
 [[def_submodule]]submodule::
 	A <<def_repository,repository>> that holds the history of a
 	separate project inside another repository (the latter of
diff --git a/Documentation/ref-storage-format.txt b/Documentation/ref-storage-format.txt
new file mode 100644
index 0000000..1a65cac
--- /dev/null
+++ b/Documentation/ref-storage-format.txt
@@ -0,0 +1 @@
+* `files` for loose files with packed-refs. This is the default.
diff --git a/Documentation/technical/repository-version.txt b/Documentation/technical/repository-version.txt
index 045a767..27be374 100644
--- a/Documentation/technical/repository-version.txt
+++ b/Documentation/technical/repository-version.txt
@@ -100,3 +100,8 @@
 multiple working directory mode, "config" file is shared while
 "config.worktree" is per-working directory (i.e., it's in
 GIT_COMMON_DIR/worktrees/<id>/config.worktree)
+
+==== `refStorage`
+
+Specifies the file format for the ref database. The only valid value
+is `files` (loose references with a packed-refs file).
diff --git a/Documentation/technical/unit-tests.txt b/Documentation/technical/unit-tests.txt
new file mode 100644
index 0000000..206037f
--- /dev/null
+++ b/Documentation/technical/unit-tests.txt
@@ -0,0 +1,240 @@
+= Unit Testing
+
+In our current testing environment, we spend a significant amount of effort
+crafting end-to-end tests for error conditions that could easily be captured by
+unit tests (or we simply forgo some hard-to-setup and rare error conditions).
+Unit tests additionally provide stability to the codebase and can simplify
+debugging through isolation. Writing unit tests in pure C, rather than with our
+current shell/test-tool helper setup, simplifies test setup, simplifies passing
+data around (no shell-isms required), and reduces testing runtime by not
+spawning a separate process for every test invocation.
+
+We believe that a large body of unit tests, living alongside the existing test
+suite, will improve code quality for the Git project.
+
+== Definitions
+
+For the purposes of this document, we'll use *test framework* to refer to
+projects that support writing test cases and running tests within the context
+of a single executable. *Test harness* will refer to projects that manage
+running multiple executables (each of which may contain multiple test cases) and
+aggregating their results.
+
+In reality, these terms are not strictly defined, and many of the projects
+discussed below contain features from both categories.
+
+For now, we will evaluate projects solely on their framework features. Since we
+are relying on having TAP output (see below), we can assume that any framework
+can be made to work with a harness that we can choose later.
+
+
+== Summary
+
+We believe the best way forward is to implement a custom TAP framework for the
+Git project. We use a version of the framework originally proposed in
+https://lore.kernel.org/git/c902a166-98ce-afba-93f2-ea6027557176@gmail.com/[1].
+
+See the <<framework-selection,Framework Selection>> section below for the
+rationale behind this decision.
+
+
+== Choosing a test harness
+
+During upstream discussion, it was occasionally noted that `prove` provides many
+convenient features, such as scheduling slower tests first, or re-running
+previously failed tests.
+
+While we already support the use of `prove` as a test harness for the shell
+tests, it is not strictly required. The t/Makefile allows running shell tests
+directly (though with interleaved output if parallelism is enabled). Git
+developers who wish to use `prove` as a more advanced harness can do so by
+setting DEFAULT_TEST_TARGET=prove in their config.mak.
+
+We will follow a similar approach for unit tests: by default the test
+executables will be run directly from the t/Makefile, but `prove` can be
+configured with DEFAULT_UNIT_TEST_TARGET=prove.
+
+
+[[framework-selection]]
+== Framework selection
+
+There are a variety of features we can use to rank the candidate frameworks, and
+those features have different priorities:
+
+* Critical features: we probably won't consider a framework without these
+** Can we legally / easily use the project?
+*** <<license,License>>
+*** <<vendorable-or-ubiquitous,Vendorable or ubiquitous>>
+*** <<maintainable-extensible,Maintainable / extensible>>
+*** <<major-platform-support,Major platform support>>
+** Does the project support our bare-minimum needs?
+*** <<tap-support,TAP support>>
+*** <<diagnostic-output,Diagnostic output>>
+*** <<runtime-skippable-tests,Runtime-skippable tests>>
+* Nice-to-have features:
+** <<parallel-execution,Parallel execution>>
+** <<mock-support,Mock support>>
+** <<signal-error-handling,Signal & error-handling>>
+* Tie-breaker stats
+** <<project-kloc,Project KLOC>>
+** <<adoption,Adoption>>
+
+[[license]]
+=== License
+
+We must be able to legally use the framework in connection with Git. As Git is
+licensed only under GPLv2, we must eliminate any LGPLv3, GPLv3, or Apache 2.0
+projects.
+
+[[vendorable-or-ubiquitous]]
+=== Vendorable or ubiquitous
+
+We want to avoid forcing Git developers to install new tools just to run unit
+tests. Any prospective frameworks and harnesses must either be vendorable
+(meaning, we can copy their source directly into Git's repository), or so
+ubiquitous that it is reasonable to expect that most developers will have the
+tools installed already.
+
+[[maintainable-extensible]]
+=== Maintainable / extensible
+
+It is unlikely that any pre-existing project perfectly fits our needs, so any
+project we select will need to be actively maintained and open to accepting
+changes. Alternatively, assuming we are vendoring the source into our repo, it
+must be simple enough that Git developers can feel comfortable making changes as
+needed to our version.
+
+In the comparison table below, "True" means that the framework seems to have
+active developers, that it is simple enough that Git developers can make changes
+to it, and that the project seems open to accepting external contributions (or
+that it is vendorable). "Partial" means that at least one of the above
+conditions holds.
+
+[[major-platform-support]]
+=== Major platform support
+
+At a bare minimum, unit-testing must work on Linux, MacOS, and Windows.
+
+In the comparison table below, "True" means that it works on all three major
+platforms with no issues. "Partial" means that there may be annoyances on one or
+more platforms, but it is still usable in principle.
+
+[[tap-support]]
+=== TAP support
+
+The https://testanything.org/[Test Anything Protocol] is a text-based interface
+that allows tests to communicate with a test harness. It is already used by
+Git's integration test suite. Supporting TAP output is a mandatory feature for
+any prospective test framework.
+
+In the comparison table below, "True" means this is natively supported.
+"Partial" means TAP output must be generated by post-processing the native
+output.
+
+Frameworks that do not have at least Partial support will not be evaluated
+further.
+
+[[diagnostic-output]]
+=== Diagnostic output
+
+When a test case fails, the framework must generate enough diagnostic output to
+help developers find the appropriate test case in source code in order to debug
+the failure.
+
+[[runtime-skippable-tests]]
+=== Runtime-skippable tests
+
+Test authors may wish to skip certain test cases based on runtime circumstances,
+so the framework should support this.
+
+[[parallel-execution]]
+=== Parallel execution
+
+Ideally, we will build up a significant collection of unit test cases, most
+likely split across multiple executables. It will be necessary to run these
+tests in parallel to enable fast develop-test-debug cycles.
+
+In the comparison table below, "True" means that individual test cases within a
+single test executable can be run in parallel. We assume that executable-level
+parallelism can be handled by the test harness.
+
+[[mock-support]]
+=== Mock support
+
+Unit test authors may wish to test code that interacts with objects that may be
+inconvenient to handle in a test (e.g. interacting with a network service).
+Mocking allows test authors to provide a fake implementation of these objects
+for more convenient tests.
+
+[[signal-error-handling]]
+=== Signal & error handling
+
+The test framework should fail gracefully when test cases are themselves buggy
+or when they are interrupted by signals during runtime.
+
+[[project-kloc]]
+=== Project KLOC
+
+The size of the project, in thousands of lines of code as measured by
+https://dwheeler.com/sloccount/[sloccount] (rounded up to the next multiple of
+1,000). As a tie-breaker, we probably prefer a project with fewer LOC.
+
+[[adoption]]
+=== Adoption
+
+As a tie-breaker, we prefer a more widely-used project. We use the number of
+GitHub / GitLab stars to estimate this.
+
+
+=== Comparison
+
+:true: [lime-background]#True#
+:false: [red-background]#False#
+:partial: [yellow-background]#Partial#
+
+:gpl: [lime-background]#GPL v2#
+:isc: [lime-background]#ISC#
+:mit: [lime-background]#MIT#
+:expat: [lime-background]#Expat#
+:lgpl: [lime-background]#LGPL v2.1#
+
+:custom-impl: https://lore.kernel.org/git/c902a166-98ce-afba-93f2-ea6027557176@gmail.com/[Custom Git impl.]
+:greatest: https://github.com/silentbicycle/greatest[Greatest]
+:criterion: https://github.com/Snaipe/Criterion[Criterion]
+:c-tap: https://github.com/rra/c-tap-harness/[C TAP]
+:check: https://libcheck.github.io/check/[Check]
+
+[format="csv",options="header",width="33%",subs="specialcharacters,attributes,quotes,macros"]
+|=====
+Framework,"<<license,License>>","<<vendorable-or-ubiquitous,Vendorable or ubiquitous>>","<<maintainable-extensible,Maintainable / extensible>>","<<major-platform-support,Major platform support>>","<<tap-support,TAP support>>","<<diagnostic-output,Diagnostic output>>","<<runtime--skippable-tests,Runtime- skippable tests>>","<<parallel-execution,Parallel execution>>","<<mock-support,Mock support>>","<<signal-error-handling,Signal & error handling>>","<<project-kloc,Project KLOC>>","<<adoption,Adoption>>"
+{custom-impl},{gpl},{true},{true},{true},{true},{true},{true},{false},{false},{false},1,0
+{greatest},{isc},{true},{partial},{true},{partial},{true},{true},{false},{false},{false},3,1400
+{criterion},{mit},{false},{partial},{true},{true},{true},{true},{true},{false},{true},19,1800
+{c-tap},{expat},{true},{partial},{partial},{true},{false},{true},{false},{false},{false},4,33
+{check},{lgpl},{false},{partial},{true},{true},{true},{false},{false},{false},{true},17,973
+|=====
+
+=== Additional framework candidates
+
+Several suggested frameworks have been eliminated from consideration:
+
+* Incompatible licenses:
+** https://github.com/zorgnax/libtap[libtap] (LGPL v3)
+** https://cmocka.org/[cmocka] (Apache 2.0)
+* Missing source: https://www.kindahl.net/mytap/doc/index.html[MyTap]
+* No TAP support:
+** https://nemequ.github.io/munit/[µnit]
+** https://github.com/google/cmockery[cmockery]
+** https://github.com/lpabon/cmockery2[cmockery2]
+** https://github.com/ThrowTheSwitch/Unity[Unity]
+** https://github.com/siu/minunit[minunit]
+** https://cunit.sourceforge.net/[CUnit]
+
+
+== Milestones
+
+* Add useful tests of library-like code
+* Integrate with
+  https://lore.kernel.org/git/20230502211454.1673000-1-calvinwan@google.com/[stdlib
+  work]
+* Run alongside regular `make test` target
diff --git a/Documentation/trace2-target-values.txt b/Documentation/trace2-target-values.txt
index 3985b6d..06f1953 100644
--- a/Documentation/trace2-target-values.txt
+++ b/Documentation/trace2-target-values.txt
@@ -5,7 +5,7 @@
 * `<absolute-pathname>` - Writes to the file in append mode. If the target
 already exists and is a directory, the traces will be written to files (one
 per process) underneath the given directory.
-* `af_unix:[<socket_type>:]<absolute-pathname>` - Write to a
+* `af_unix:[<socket-type>:]<absolute-pathname>` - Write to a
 Unix DomainSocket (on platforms that support them).  Socket
 type can be either `stream` or `dgram`; if omitted Git will
 try both.
diff --git a/Documentation/urls.txt b/Documentation/urls.txt
index 4e79c15..ce671f8 100644
--- a/Documentation/urls.txt
+++ b/Documentation/urls.txt
@@ -73,8 +73,8 @@
 configuration section of the form:
 
 ------------
-	[url "<actual url base>"]
-		insteadOf = <other url base>
+	[url "<actual-url-base>"]
+		insteadOf = <other-url-base>
 ------------
 
 For example, with this:
@@ -92,8 +92,8 @@
 configuration section of the form:
 
 ------------
-	[url "<actual url base>"]
-		pushInsteadOf = <other url base>
+	[url "<actual-url-base>"]
+		pushInsteadOf = <other-url-base>
 ------------
 
 For example, with this:
diff --git a/Documentation/user-manual.txt b/Documentation/user-manual.txt
index 5d32ff2..6433903 100644
--- a/Documentation/user-manual.txt
+++ b/Documentation/user-manual.txt
@@ -4100,8 +4100,8 @@
 be validated by verifying that (a) their hashes match the content of the
 file and (b) the object successfully inflates to a stream of bytes that
 forms a sequence of
-`<ascii type without space> + <space> + <ascii decimal size> +
-<byte\0> + <binary object data>`.
+`<ascii-type-without-space> + <space> + <ascii-decimal-size> +
+<byte\0> + <binary-object-data>`.
 
 The structured objects can further have their structure and
 connectivity to other objects verified. This is generally done with
diff --git a/GIT-VERSION-GEN b/GIT-VERSION-GEN
index 698e8dc..c9d1d29 100755
--- a/GIT-VERSION-GEN
+++ b/GIT-VERSION-GEN
@@ -1,7 +1,7 @@
 #!/bin/sh
 
 GVF=GIT-VERSION-FILE
-DEF_VER=v2.43.3
+DEF_VER=v2.44.0
 
 LF='
 '
@@ -11,7 +11,7 @@
 if test -f version
 then
 	VN=$(cat version) || VN="$DEF_VER"
-elif test -d ${GIT_DIR:-.git} -o -f .git &&
+elif { test -d "${GIT_DIR:-.git}" || test -f .git; } &&
 	VN=$(git describe --match "v[0-9]*" HEAD 2>/dev/null) &&
 	case "$VN" in
 	*$LF*) (exit 1) ;;
diff --git a/Makefile b/Makefile
index 1618ee2..78e8740 100644
--- a/Makefile
+++ b/Makefile
@@ -682,6 +682,9 @@
 TEST_OBJS =
 TEST_PROGRAMS_NEED_X =
 THIRD_PARTY_SOURCES =
+UNIT_TEST_PROGRAMS =
+UNIT_TEST_DIR = t/unit-tests
+UNIT_TEST_BIN = $(UNIT_TEST_DIR)/bin
 
 # Having this variable in your environment would break pipelines because
 # you cause "cd" to echo its destination to stdout.  It can also take
@@ -749,7 +752,12 @@
 
 ETAGS_TARGET = TAGS
 
+# If you add a new fuzzer, please also make sure to run it in
+# ci/run-build-and-minimal-fuzzers.sh so that we make sure it still links and
+# runs in the future.
+FUZZ_OBJS += oss-fuzz/dummy-cmd-main.o
 FUZZ_OBJS += oss-fuzz/fuzz-commit-graph.o
+FUZZ_OBJS += oss-fuzz/fuzz-date.o
 FUZZ_OBJS += oss-fuzz/fuzz-pack-headers.o
 FUZZ_OBJS += oss-fuzz/fuzz-pack-idx.o
 .PHONY: fuzz-objs
@@ -758,7 +766,7 @@
 # Always build fuzz objects even if not testing, to prevent bit-rot.
 all:: $(FUZZ_OBJS)
 
-FUZZ_PROGRAMS += $(patsubst %.o,%,$(FUZZ_OBJS))
+FUZZ_PROGRAMS += $(patsubst %.o,%,$(filter-out %dummy-cmd-main.o,$(FUZZ_OBJS)))
 
 # Empty...
 EXTRA_PROGRAMS =
@@ -788,7 +796,6 @@
 TEST_BUILTINS_OBJS += test-config.o
 TEST_BUILTINS_OBJS += test-crontab.o
 TEST_BUILTINS_OBJS += test-csprng.o
-TEST_BUILTINS_OBJS += test-ctype.o
 TEST_BUILTINS_OBJS += test-date.o
 TEST_BUILTINS_OBJS += test-delta.o
 TEST_BUILTINS_OBJS += test-dir-iterator.o
@@ -799,7 +806,6 @@
 TEST_BUILTINS_OBJS += test-dump-untracked-cache.o
 TEST_BUILTINS_OBJS += test-env-helper.o
 TEST_BUILTINS_OBJS += test-example-decorate.o
-TEST_BUILTINS_OBJS += test-fast-rebase.o
 TEST_BUILTINS_OBJS += test-find-pack.o
 TEST_BUILTINS_OBJS += test-fsmonitor-client.o
 TEST_BUILTINS_OBJS += test-genrandom.o
@@ -825,7 +831,6 @@
 TEST_BUILTINS_OBJS += test-path-utils.o
 TEST_BUILTINS_OBJS += test-pcre2-config.o
 TEST_BUILTINS_OBJS += test-pkt-line.o
-TEST_BUILTINS_OBJS += test-prio-queue.o
 TEST_BUILTINS_OBJS += test-proc-receive.o
 TEST_BUILTINS_OBJS += test-progress.o
 TEST_BUILTINS_OBJS += test-reach.o
@@ -1290,6 +1295,7 @@
 BUILTIN_OBJS += builtin/remote.o
 BUILTIN_OBJS += builtin/repack.o
 BUILTIN_OBJS += builtin/replace.o
+BUILTIN_OBJS += builtin/replay.o
 BUILTIN_OBJS += builtin/rerere.o
 BUILTIN_OBJS += builtin/reset.o
 BUILTIN_OBJS += builtin/rev-list.o
@@ -1335,6 +1341,15 @@
 THIRD_PARTY_SOURCES += sha1collisiondetection/%
 THIRD_PARTY_SOURCES += sha1dc/%
 
+UNIT_TEST_PROGRAMS += t-basic
+UNIT_TEST_PROGRAMS += t-mem-pool
+UNIT_TEST_PROGRAMS += t-strbuf
+UNIT_TEST_PROGRAMS += t-ctype
+UNIT_TEST_PROGRAMS += t-prio-queue
+UNIT_TEST_PROGS = $(patsubst %,$(UNIT_TEST_BIN)/%$X,$(UNIT_TEST_PROGRAMS))
+UNIT_TEST_OBJS = $(patsubst %,$(UNIT_TEST_DIR)/%.o,$(UNIT_TEST_PROGRAMS))
+UNIT_TEST_OBJS += $(UNIT_TEST_DIR)/test-lib.o
+
 # xdiff and reftable libs may in turn depend on what is in libgit.a
 GITLIBS = common-main.o $(LIB_FILE) $(XDIFF_LIB) $(REFTABLE_LIB) $(LIB_FILE)
 EXTLIBS =
@@ -1575,7 +1590,7 @@
 
 ifdef LIBPCREDIR
 	BASIC_CFLAGS += -I$(LIBPCREDIR)/include
-	EXTLIBS += -L$(LIBPCREDIR)/$(lib) $(CC_LD_DYNPATH)$(LIBPCREDIR)/$(lib)
+	EXTLIBS += $(call libpath_template,$(LIBPCREDIR)/$(lib))
 endif
 
 ifdef HAVE_ALLOCA_H
@@ -1595,7 +1610,7 @@
 	ifdef CURLDIR
 		# Try "-Wl,-rpath=$(CURLDIR)/$(lib)" in such a case.
 		CURL_CFLAGS = -I$(CURLDIR)/include
-		CURL_LIBCURL = -L$(CURLDIR)/$(lib) $(CC_LD_DYNPATH)$(CURLDIR)/$(lib)
+		CURL_LIBCURL = $(call libpath_template,$(CURLDIR)/$(lib))
 	else
 		CURL_CFLAGS =
 		CURL_LIBCURL =
@@ -1631,7 +1646,7 @@
 	ifndef NO_EXPAT
 		ifdef EXPATDIR
 			BASIC_CFLAGS += -I$(EXPATDIR)/include
-			EXPAT_LIBEXPAT = -L$(EXPATDIR)/$(lib) $(CC_LD_DYNPATH)$(EXPATDIR)/$(lib) -lexpat
+			EXPAT_LIBEXPAT = $(call libpath_template,$(EXPATDIR)/$(lib)) -lexpat
 		else
 			EXPAT_LIBEXPAT = -lexpat
 		endif
@@ -1644,7 +1659,7 @@
 
 ifdef ZLIB_PATH
 	BASIC_CFLAGS += -I$(ZLIB_PATH)/include
-	EXTLIBS += -L$(ZLIB_PATH)/$(lib) $(CC_LD_DYNPATH)$(ZLIB_PATH)/$(lib)
+	EXTLIBS += $(call libpath_template,$(ZLIB_PATH)/$(lib))
 endif
 EXTLIBS += -lz
 
@@ -1652,7 +1667,7 @@
 	OPENSSL_LIBSSL = -lssl
 	ifdef OPENSSLDIR
 		BASIC_CFLAGS += -I$(OPENSSLDIR)/include
-		OPENSSL_LINK = -L$(OPENSSLDIR)/$(lib) $(CC_LD_DYNPATH)$(OPENSSLDIR)/$(lib)
+		OPENSSL_LINK = $(call libpath_template,$(OPENSSLDIR)/$(lib))
 	else
 		OPENSSL_LINK =
 	endif
@@ -1679,7 +1694,7 @@
 	ifdef NEEDS_LIBICONV
 		ifdef ICONVDIR
 			BASIC_CFLAGS += -I$(ICONVDIR)/include
-			ICONV_LINK = -L$(ICONVDIR)/$(lib) $(CC_LD_DYNPATH)$(ICONVDIR)/$(lib)
+			ICONV_LINK = $(call libpath_template,$(ICONVDIR)/$(lib))
 		else
 			ICONV_LINK =
 		endif
@@ -2342,7 +2357,7 @@
 
 all:: $(ALL_COMMANDS_TO_INSTALL) $(SCRIPT_LIB) $(OTHER_PROGRAMS) GIT-BUILD-OPTIONS
 ifneq (,$X)
-	$(QUIET_BUILT_IN)$(foreach p,$(patsubst %$X,%,$(filter %$X,$(ALL_COMMANDS_TO_INSTALL) $(OTHER_PROGRAMS))), test -d '$p' -o '$p' -ef '$p$X' || $(RM) '$p';)
+	$(QUIET_BUILT_IN)$(foreach p,$(patsubst %$X,%,$(filter %$X,$(ALL_COMMANDS_TO_INSTALL) $(OTHER_PROGRAMS))), if test ! -d '$p' && test ! '$p' -ef '$p$X'; then $(RM) '$p'; fi;)
 endif
 
 all::
@@ -2676,6 +2691,7 @@
 OBJECTS += $(XDIFF_OBJS)
 OBJECTS += $(FUZZ_OBJS)
 OBJECTS += $(REFTABLE_OBJS) $(REFTABLE_TEST_OBJS)
+OBJECTS += $(UNIT_TEST_OBJS)
 
 ifndef NO_CURL
 	OBJECTS += http.o http-walker.o remote-curl.o
@@ -3178,7 +3194,7 @@
 
 test_bindir_programs := $(patsubst %,bin-wrappers/%,$(BINDIR_PROGRAMS_NEED_X) $(BINDIR_PROGRAMS_NO_X) $(TEST_PROGRAMS_NEED_X))
 
-all:: $(TEST_PROGRAMS) $(test_bindir_programs)
+all:: $(TEST_PROGRAMS) $(test_bindir_programs) $(UNIT_TEST_PROGS)
 
 bin-wrappers/%: wrap-for-bin.sh
 	$(call mkdir_p_parent_template)
@@ -3604,12 +3620,12 @@
 .PHONY: rpm
 
 ifneq ($(INCLUDE_DLLS_IN_ARTIFACTS),)
-OTHER_PROGRAMS += $(shell echo *.dll t/helper/*.dll)
+OTHER_PROGRAMS += $(shell echo *.dll t/helper/*.dll t/unit-tests/bin/*.dll)
 endif
 
 artifacts-tar:: $(ALL_COMMANDS_TO_INSTALL) $(SCRIPT_LIB) $(OTHER_PROGRAMS) \
 		GIT-BUILD-OPTIONS $(TEST_PROGRAMS) $(test_bindir_programs) \
-		$(MOFILES)
+		$(UNIT_TEST_PROGS) $(MOFILES)
 	$(QUIET_SUBDIR0)templates $(QUIET_SUBDIR1) \
 		SHELL_PATH='$(SHELL_PATH_SQ)' PERL_PATH='$(PERL_PATH_SQ)'
 	test -n "$(ARTIFACTS_DIRECTORY)"
@@ -3664,7 +3680,7 @@
 	$(RM) contrib/coccinelle/*.cocci.patch
 
 clean: profile-clean coverage-clean cocciclean
-	$(RM) -r .build
+	$(RM) -r .build $(UNIT_TEST_BIN)
 	$(RM) po/git.pot po/git-core.pot
 	$(RM) git.res
 	$(RM) $(OBJECTS)
@@ -3838,15 +3854,26 @@
 #
 # make CC=clang CXX=clang++ \
 #      CFLAGS="-fsanitize=fuzzer-no-link,address" \
-#      LIB_FUZZING_ENGINE="-fsanitize=fuzzer" \
+#      LIB_FUZZING_ENGINE="-fsanitize=fuzzer,address" \
 #      fuzz-all
 #
-FUZZ_CXXFLAGS ?= $(CFLAGS)
+FUZZ_CXXFLAGS ?= $(ALL_CFLAGS)
 
 .PHONY: fuzz-all
 
-$(FUZZ_PROGRAMS): all
-	$(QUIET_LINK)$(CXX) $(FUZZ_CXXFLAGS) $(LIB_OBJS) $(BUILTIN_OBJS) \
-		$(XDIFF_OBJS) $(EXTLIBS) git.o $@.o $(LIB_FUZZING_ENGINE) -o $@
+$(FUZZ_PROGRAMS): %: %.o oss-fuzz/dummy-cmd-main.o $(GITLIBS) GIT-LDFLAGS
+	$(QUIET_LINK)$(CXX) $(FUZZ_CXXFLAGS) -o $@ $(ALL_LDFLAGS) \
+		-Wl,--allow-multiple-definition \
+		$(filter %.o,$^) $(filter %.a,$^) $(LIBS) $(LIB_FUZZING_ENGINE)
 
 fuzz-all: $(FUZZ_PROGRAMS)
+
+$(UNIT_TEST_PROGS): $(UNIT_TEST_BIN)/%$X: $(UNIT_TEST_DIR)/%.o $(UNIT_TEST_DIR)/test-lib.o $(GITLIBS) GIT-LDFLAGS
+	$(call mkdir_p_parent_template)
+	$(QUIET_LINK)$(CC) $(ALL_CFLAGS) -o $@ $(ALL_LDFLAGS) \
+		$(filter %.o,$^) $(filter %.a,$^) $(LIBS)
+
+.PHONY: build-unit-tests unit-tests
+build-unit-tests: $(UNIT_TEST_PROGS)
+unit-tests: $(UNIT_TEST_PROGS)
+	$(MAKE) -C t/ unit-tests
diff --git a/RelNotes b/RelNotes
index 9879230..a55478f 120000
--- a/RelNotes
+++ b/RelNotes
@@ -1 +1 @@
-Documentation/RelNotes/2.43.3.txt
\ No newline at end of file
+Documentation/RelNotes/2.44.0.txt
\ No newline at end of file
diff --git a/advice.c b/advice.c
index 50c7944..6e9098f 100644
--- a/advice.c
+++ b/advice.c
@@ -33,52 +33,56 @@
 	return "";
 }
 
+enum advice_level {
+	ADVICE_LEVEL_NONE = 0,
+	ADVICE_LEVEL_DISABLED,
+	ADVICE_LEVEL_ENABLED,
+};
+
 static struct {
 	const char *key;
-	int enabled;
+	enum advice_level level;
 } advice_setting[] = {
-	[ADVICE_ADD_EMBEDDED_REPO]			= { "addEmbeddedRepo", 1 },
-	[ADVICE_ADD_EMPTY_PATHSPEC]			= { "addEmptyPathspec", 1 },
-	[ADVICE_ADD_IGNORED_FILE]			= { "addIgnoredFile", 1 },
-	[ADVICE_AM_WORK_DIR] 				= { "amWorkDir", 1 },
-	[ADVICE_AMBIGUOUS_FETCH_REFSPEC]		= { "ambiguousFetchRefspec", 1 },
-	[ADVICE_CHECKOUT_AMBIGUOUS_REMOTE_BRANCH_NAME] 	= { "checkoutAmbiguousRemoteBranchName", 1 },
-	[ADVICE_COMMIT_BEFORE_MERGE]			= { "commitBeforeMerge", 1 },
-	[ADVICE_DETACHED_HEAD]				= { "detachedHead", 1 },
-	[ADVICE_SUGGEST_DETACHING_HEAD]			= { "suggestDetachingHead", 1 },
-	[ADVICE_DIVERGING]				= { "diverging", 1 },
-	[ADVICE_FETCH_SHOW_FORCED_UPDATES]		= { "fetchShowForcedUpdates", 1 },
-	[ADVICE_GRAFT_FILE_DEPRECATED]			= { "graftFileDeprecated", 1 },
-	[ADVICE_IGNORED_HOOK]				= { "ignoredHook", 1 },
-	[ADVICE_IMPLICIT_IDENTITY]			= { "implicitIdentity", 1 },
-	[ADVICE_NESTED_TAG]				= { "nestedTag", 1 },
-	[ADVICE_OBJECT_NAME_WARNING]			= { "objectNameWarning", 1 },
-	[ADVICE_PUSH_ALREADY_EXISTS]			= { "pushAlreadyExists", 1 },
-	[ADVICE_PUSH_FETCH_FIRST]			= { "pushFetchFirst", 1 },
-	[ADVICE_PUSH_NEEDS_FORCE]			= { "pushNeedsForce", 1 },
-	[ADVICE_PUSH_REF_NEEDS_UPDATE]			= { "pushRefNeedsUpdate", 1 },
-
-	/* make this an alias for backward compatibility */
-	[ADVICE_PUSH_UPDATE_REJECTED_ALIAS]		= { "pushNonFastForward", 1 },
-
-	[ADVICE_PUSH_NON_FF_CURRENT]			= { "pushNonFFCurrent", 1 },
-	[ADVICE_PUSH_NON_FF_MATCHING]			= { "pushNonFFMatching", 1 },
-	[ADVICE_PUSH_UNQUALIFIED_REF_NAME]		= { "pushUnqualifiedRefName", 1 },
-	[ADVICE_PUSH_UPDATE_REJECTED]			= { "pushUpdateRejected", 1 },
-	[ADVICE_RESET_NO_REFRESH_WARNING]		= { "resetNoRefresh", 1 },
-	[ADVICE_RESOLVE_CONFLICT]			= { "resolveConflict", 1 },
-	[ADVICE_RM_HINTS]				= { "rmHints", 1 },
-	[ADVICE_SEQUENCER_IN_USE]			= { "sequencerInUse", 1 },
-	[ADVICE_SET_UPSTREAM_FAILURE]			= { "setUpstreamFailure", 1 },
-	[ADVICE_SKIPPED_CHERRY_PICKS]			= { "skippedCherryPicks", 1 },
-	[ADVICE_STATUS_AHEAD_BEHIND_WARNING]		= { "statusAheadBehindWarning", 1 },
-	[ADVICE_STATUS_HINTS]				= { "statusHints", 1 },
-	[ADVICE_STATUS_U_OPTION]			= { "statusUoption", 1 },
-	[ADVICE_SUBMODULE_ALTERNATE_ERROR_STRATEGY_DIE] = { "submoduleAlternateErrorStrategyDie", 1 },
-	[ADVICE_SUBMODULES_NOT_UPDATED] 		= { "submodulesNotUpdated", 1 },
-	[ADVICE_UPDATE_SPARSE_PATH]			= { "updateSparsePath", 1 },
-	[ADVICE_WAITING_FOR_EDITOR]			= { "waitingForEditor", 1 },
-	[ADVICE_WORKTREE_ADD_ORPHAN]			= { "worktreeAddOrphan", 1 },
+	[ADVICE_ADD_EMBEDDED_REPO]			= { "addEmbeddedRepo" },
+	[ADVICE_ADD_EMPTY_PATHSPEC]			= { "addEmptyPathspec" },
+	[ADVICE_ADD_IGNORED_FILE]			= { "addIgnoredFile" },
+	[ADVICE_AMBIGUOUS_FETCH_REFSPEC]		= { "ambiguousFetchRefspec" },
+	[ADVICE_AM_WORK_DIR] 				= { "amWorkDir" },
+	[ADVICE_CHECKOUT_AMBIGUOUS_REMOTE_BRANCH_NAME] 	= { "checkoutAmbiguousRemoteBranchName" },
+	[ADVICE_COMMIT_BEFORE_MERGE]			= { "commitBeforeMerge" },
+	[ADVICE_DETACHED_HEAD]				= { "detachedHead" },
+	[ADVICE_DIVERGING]				= { "diverging" },
+	[ADVICE_FETCH_SHOW_FORCED_UPDATES]		= { "fetchShowForcedUpdates" },
+	[ADVICE_FORCE_DELETE_BRANCH]			= { "forceDeleteBranch" },
+	[ADVICE_GRAFT_FILE_DEPRECATED]			= { "graftFileDeprecated" },
+	[ADVICE_IGNORED_HOOK]				= { "ignoredHook" },
+	[ADVICE_IMPLICIT_IDENTITY]			= { "implicitIdentity" },
+	[ADVICE_NESTED_TAG]				= { "nestedTag" },
+	[ADVICE_OBJECT_NAME_WARNING]			= { "objectNameWarning" },
+	[ADVICE_PUSH_ALREADY_EXISTS]			= { "pushAlreadyExists" },
+	[ADVICE_PUSH_FETCH_FIRST]			= { "pushFetchFirst" },
+	[ADVICE_PUSH_NEEDS_FORCE]			= { "pushNeedsForce" },
+	[ADVICE_PUSH_NON_FF_CURRENT]			= { "pushNonFFCurrent" },
+	[ADVICE_PUSH_NON_FF_MATCHING]			= { "pushNonFFMatching" },
+	[ADVICE_PUSH_REF_NEEDS_UPDATE]			= { "pushRefNeedsUpdate" },
+	[ADVICE_PUSH_UNQUALIFIED_REF_NAME]		= { "pushUnqualifiedRefName" },
+	[ADVICE_PUSH_UPDATE_REJECTED]			= { "pushUpdateRejected" },
+	[ADVICE_PUSH_UPDATE_REJECTED_ALIAS]		= { "pushNonFastForward" }, /* backwards compatibility */
+	[ADVICE_RESET_NO_REFRESH_WARNING]		= { "resetNoRefresh" },
+	[ADVICE_RESOLVE_CONFLICT]			= { "resolveConflict" },
+	[ADVICE_RM_HINTS]				= { "rmHints" },
+	[ADVICE_SEQUENCER_IN_USE]			= { "sequencerInUse" },
+	[ADVICE_SET_UPSTREAM_FAILURE]			= { "setUpstreamFailure" },
+	[ADVICE_SKIPPED_CHERRY_PICKS]			= { "skippedCherryPicks" },
+	[ADVICE_STATUS_AHEAD_BEHIND_WARNING]		= { "statusAheadBehindWarning" },
+	[ADVICE_STATUS_HINTS]				= { "statusHints" },
+	[ADVICE_STATUS_U_OPTION]			= { "statusUoption" },
+	[ADVICE_SUBMODULES_NOT_UPDATED] 		= { "submodulesNotUpdated" },
+	[ADVICE_SUBMODULE_ALTERNATE_ERROR_STRATEGY_DIE] = { "submoduleAlternateErrorStrategyDie" },
+	[ADVICE_SUGGEST_DETACHING_HEAD]			= { "suggestDetachingHead" },
+	[ADVICE_UPDATE_SPARSE_PATH]			= { "updateSparsePath" },
+	[ADVICE_WAITING_FOR_EDITOR]			= { "waitingForEditor" },
+	[ADVICE_WORKTREE_ADD_ORPHAN]			= { "worktreeAddOrphan" },
 };
 
 static const char turn_off_instructions[] =
@@ -118,13 +122,13 @@
 
 int advice_enabled(enum advice_type type)
 {
-	switch(type) {
-	case ADVICE_PUSH_UPDATE_REJECTED:
-		return advice_setting[ADVICE_PUSH_UPDATE_REJECTED].enabled &&
-		       advice_setting[ADVICE_PUSH_UPDATE_REJECTED_ALIAS].enabled;
-	default:
-		return advice_setting[type].enabled;
-	}
+	int enabled = advice_setting[type].level != ADVICE_LEVEL_DISABLED;
+
+	if (type == ADVICE_PUSH_UPDATE_REJECTED)
+		return enabled &&
+		       advice_enabled(ADVICE_PUSH_UPDATE_REJECTED_ALIAS);
+
+	return enabled;
 }
 
 void advise_if_enabled(enum advice_type type, const char *advice, ...)
@@ -135,7 +139,8 @@
 		return;
 
 	va_start(params, advice);
-	vadvise(advice, 1, advice_setting[type].key, params);
+	vadvise(advice, !advice_setting[type].level, advice_setting[type].key,
+		params);
 	va_end(params);
 }
 
@@ -164,7 +169,9 @@
 	for (i = 0; i < ARRAY_SIZE(advice_setting); i++) {
 		if (strcasecmp(k, advice_setting[i].key))
 			continue;
-		advice_setting[i].enabled = git_config_bool(var, value);
+		advice_setting[i].level = git_config_bool(var, value)
+					  ? ADVICE_LEVEL_ENABLED
+					  : ADVICE_LEVEL_DISABLED;
 		return 0;
 	}
 
diff --git a/advice.h b/advice.h
index 2affbe1..9d4f49a 100644
--- a/advice.h
+++ b/advice.h
@@ -10,18 +10,18 @@
  * Add the new config variable to Documentation/config/advice.txt.
  * Call advise_if_enabled to print your advice.
  */
- enum advice_type {
+enum advice_type {
 	ADVICE_ADD_EMBEDDED_REPO,
 	ADVICE_ADD_EMPTY_PATHSPEC,
 	ADVICE_ADD_IGNORED_FILE,
-	ADVICE_AM_WORK_DIR,
 	ADVICE_AMBIGUOUS_FETCH_REFSPEC,
+	ADVICE_AM_WORK_DIR,
 	ADVICE_CHECKOUT_AMBIGUOUS_REMOTE_BRANCH_NAME,
 	ADVICE_COMMIT_BEFORE_MERGE,
 	ADVICE_DETACHED_HEAD,
 	ADVICE_DIVERGING,
-	ADVICE_SUGGEST_DETACHING_HEAD,
 	ADVICE_FETCH_SHOW_FORCED_UPDATES,
+	ADVICE_FORCE_DELETE_BRANCH,
 	ADVICE_GRAFT_FILE_DEPRECATED,
 	ADVICE_IGNORED_HOOK,
 	ADVICE_IMPLICIT_IDENTITY,
@@ -32,23 +32,24 @@
 	ADVICE_PUSH_NEEDS_FORCE,
 	ADVICE_PUSH_NON_FF_CURRENT,
 	ADVICE_PUSH_NON_FF_MATCHING,
-	ADVICE_PUSH_UNQUALIFIED_REF_NAME,
-	ADVICE_PUSH_UPDATE_REJECTED_ALIAS,
-	ADVICE_PUSH_UPDATE_REJECTED,
 	ADVICE_PUSH_REF_NEEDS_UPDATE,
+	ADVICE_PUSH_UNQUALIFIED_REF_NAME,
+	ADVICE_PUSH_UPDATE_REJECTED,
+	ADVICE_PUSH_UPDATE_REJECTED_ALIAS,
 	ADVICE_RESET_NO_REFRESH_WARNING,
 	ADVICE_RESOLVE_CONFLICT,
 	ADVICE_RM_HINTS,
 	ADVICE_SEQUENCER_IN_USE,
 	ADVICE_SET_UPSTREAM_FAILURE,
+	ADVICE_SKIPPED_CHERRY_PICKS,
 	ADVICE_STATUS_AHEAD_BEHIND_WARNING,
 	ADVICE_STATUS_HINTS,
 	ADVICE_STATUS_U_OPTION,
-	ADVICE_SUBMODULE_ALTERNATE_ERROR_STRATEGY_DIE,
 	ADVICE_SUBMODULES_NOT_UPDATED,
+	ADVICE_SUBMODULE_ALTERNATE_ERROR_STRATEGY_DIE,
+	ADVICE_SUGGEST_DETACHING_HEAD,
 	ADVICE_UPDATE_SPARSE_PATH,
 	ADVICE_WAITING_FOR_EDITOR,
-	ADVICE_SKIPPED_CHERRY_PICKS,
 	ADVICE_WORKTREE_ADD_ORPHAN,
 };
 
diff --git a/attr.c b/attr.c
index e62876d..679e422 100644
--- a/attr.c
+++ b/attr.c
@@ -17,6 +17,7 @@
 #include "utf8.h"
 #include "quote.h"
 #include "read-cache-ll.h"
+#include "refs.h"
 #include "revision.h"
 #include "object-store-ll.h"
 #include "setup.h"
@@ -183,6 +184,15 @@
 	}
 }
 
+/*
+ * Atribute name cannot begin with "builtin_" which
+ * is a reserved namespace for built in attributes values.
+ */
+static int attr_name_reserved(const char *name)
+{
+	return starts_with(name, "builtin_");
+}
+
 static int attr_name_valid(const char *name, size_t namelen)
 {
 	/*
@@ -315,7 +325,7 @@
 			cp++;
 			len--;
 		}
-		if (!attr_name_valid(cp, len)) {
+		if (!attr_name_valid(cp, len) || attr_name_reserved(cp)) {
 			report_invalid_attr(cp, len, src, lineno);
 			return NULL;
 		}
@@ -379,7 +389,7 @@
 		name += strlen(ATTRIBUTE_MACRO_PREFIX);
 		name += strspn(name, blank);
 		namelen = strcspn(name, blank);
-		if (!attr_name_valid(name, namelen)) {
+		if (!attr_name_valid(name, namelen) || attr_name_reserved(name)) {
 			report_invalid_attr(name, namelen, src, lineno);
 			goto fail_return;
 		}
@@ -1240,6 +1250,85 @@
 	return &attr_source;
 }
 
+static const char *interned_mode_string(unsigned int mode)
+{
+	static struct {
+		unsigned int val;
+		char str[7];
+	} mode_string[] = {
+		{ .val = 0040000 },
+		{ .val = 0100644 },
+		{ .val = 0100755 },
+		{ .val = 0120000 },
+		{ .val = 0160000 },
+	};
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(mode_string); i++) {
+		if (mode_string[i].val != mode)
+			continue;
+		if (!*mode_string[i].str)
+			snprintf(mode_string[i].str, sizeof(mode_string[i].str),
+				 "%06o", mode);
+		return mode_string[i].str;
+	}
+	BUG("Unsupported mode 0%o", mode);
+}
+
+static const char *builtin_object_mode_attr(struct index_state *istate, const char *path)
+{
+	unsigned int mode;
+
+	if (direction == GIT_ATTR_CHECKIN) {
+		struct object_id oid;
+		struct stat st;
+		if (lstat(path, &st))
+			die_errno(_("unable to stat '%s'"), path);
+		mode = canon_mode(st.st_mode);
+		if (S_ISDIR(mode)) {
+			/*
+			 *`path` is either a directory or it is a submodule,
+			 * in which case it is already indexed as submodule
+			 * or it does not exist in the index yet and we need to
+			 * check if we can resolve to a ref.
+			*/
+			int pos = index_name_pos(istate, path, strlen(path));
+			if (pos >= 0) {
+				 if (S_ISGITLINK(istate->cache[pos]->ce_mode))
+					 mode = istate->cache[pos]->ce_mode;
+			} else if (resolve_gitlink_ref(path, "HEAD", &oid) == 0) {
+				mode = S_IFGITLINK;
+			}
+		}
+	} else {
+		/*
+		 * For GIT_ATTR_CHECKOUT and GIT_ATTR_INDEX we only check
+		 * for mode in the index.
+		 */
+		int pos = index_name_pos(istate, path, strlen(path));
+		if (pos >= 0)
+			mode = istate->cache[pos]->ce_mode;
+		else
+			return ATTR__UNSET;
+	}
+
+	return interned_mode_string(mode);
+}
+
+
+static const char *compute_builtin_attr(struct index_state *istate,
+					  const char *path,
+					  const struct git_attr *attr) {
+	static const struct git_attr *object_mode_attr;
+
+	if (!object_mode_attr)
+		object_mode_attr = git_attr("builtin_objectmode");
+
+	if (attr == object_mode_attr)
+		return builtin_object_mode_attr(istate, path);
+	return ATTR__UNSET;
+}
+
 void git_check_attr(struct index_state *istate,
 		    const char *path,
 		    struct attr_check *check)
@@ -1253,7 +1342,7 @@
 		unsigned int n = check->items[i].attr->attr_nr;
 		const char *value = check->all_attrs[n].value;
 		if (value == ATTR__UNKNOWN)
-			value = ATTR__UNSET;
+			value = compute_builtin_attr(istate, path, check->all_attrs[n].attr);
 		check->items[i].value = value;
 	}
 }
diff --git a/bisect.c b/bisect.c
index 8487f8c..f75e50c 100644
--- a/bisect.c
+++ b/bisect.c
@@ -158,6 +158,9 @@
 		const char *subject_start;
 		int subject_len;
 
+		if (!buf)
+			die(_("unable to read %s"), oid_to_hex(&commit->object.oid));
+
 		fprintf(stderr, "%c%c%c ",
 			(commit_flags & TREESAME) ? ' ' : 'T',
 			(commit_flags & UNINTERESTING) ? 'U' : ' ',
@@ -470,7 +473,6 @@
 }
 
 static GIT_PATH_FUNC(git_path_bisect_names, "BISECT_NAMES")
-static GIT_PATH_FUNC(git_path_bisect_expected_rev, "BISECT_EXPECTED_REV")
 static GIT_PATH_FUNC(git_path_bisect_ancestors_ok, "BISECT_ANCESTORS_OK")
 static GIT_PATH_FUNC(git_path_bisect_run, "BISECT_RUN")
 static GIT_PATH_FUNC(git_path_bisect_start, "BISECT_START")
@@ -706,26 +708,10 @@
 
 static int is_expected_rev(const struct object_id *oid)
 {
-	const char *filename = git_path_bisect_expected_rev();
-	struct stat st;
-	struct strbuf str = STRBUF_INIT;
-	FILE *fp;
-	int res = 0;
-
-	if (stat(filename, &st) || !S_ISREG(st.st_mode))
+	struct object_id expected_oid;
+	if (read_ref("BISECT_EXPECTED_REV", &expected_oid))
 		return 0;
-
-	fp = fopen_or_warn(filename, "r");
-	if (!fp)
-		return 0;
-
-	if (strbuf_getline_lf(&str, fp) != EOF)
-		res = !strcmp(str.buf, oid_to_hex(oid));
-
-	strbuf_release(&str);
-	fclose(fp);
-
-	return res;
+	return oideq(oid, &expected_oid);
 }
 
 enum bisect_error bisect_checkout(const struct object_id *bisect_rev,
@@ -1184,10 +1170,10 @@
 	struct string_list refs_for_removal = STRING_LIST_INIT_NODUP;
 	for_each_ref_in("refs/bisect", mark_for_removal, (void *) &refs_for_removal);
 	string_list_append(&refs_for_removal, xstrdup("BISECT_HEAD"));
+	string_list_append(&refs_for_removal, xstrdup("BISECT_EXPECTED_REV"));
 	result = delete_refs("bisect: remove", &refs_for_removal, REF_NO_DEREF);
 	refs_for_removal.strdup_strings = 1;
 	string_list_clear(&refs_for_removal, 0);
-	unlink_or_warn(git_path_bisect_expected_rev());
 	unlink_or_warn(git_path_bisect_ancestors_ok());
 	unlink_or_warn(git_path_bisect_log());
 	unlink_or_warn(git_path_bisect_names());
diff --git a/branch.c b/branch.c
index 534594f..6719a18 100644
--- a/branch.c
+++ b/branch.c
@@ -817,8 +817,9 @@
 	unlink(git_path_merge_rr(r));
 	unlink(git_path_merge_msg(r));
 	unlink(git_path_merge_mode(r));
-	unlink(git_path_auto_merge(r));
-	save_autostash(git_path_merge_autostash(r));
+	refs_delete_ref(get_main_ref_store(r), "", "AUTO_MERGE",
+			NULL, REF_NO_DEREF);
+	save_autostash_ref(r, "MERGE_AUTOSTASH");
 }
 
 void remove_branch_state(struct repository *r, int verbose)
diff --git a/builtin.h b/builtin.h
index d560baa..2828063 100644
--- a/builtin.h
+++ b/builtin.h
@@ -211,6 +211,7 @@
 int cmd_remote_ext(int argc, const char **argv, const char *prefix);
 int cmd_remote_fd(int argc, const char **argv, const char *prefix);
 int cmd_repack(int argc, const char **argv, const char *prefix);
+int cmd_replay(int argc, const char **argv, const char *prefix);
 int cmd_rerere(int argc, const char **argv, const char *prefix);
 int cmd_reset(int argc, const char **argv, const char *prefix);
 int cmd_restore(int argc, const char **argv, const char *prefix);
diff --git a/builtin/add.c b/builtin/add.c
index 2151c45..ada7719 100644
--- a/builtin/add.c
+++ b/builtin/add.c
@@ -421,7 +421,7 @@
 	 * Check the "pathspec '%s' did not match any files" block
 	 * below before enabling new magic.
 	 */
-	parse_pathspec(&pathspec, PATHSPEC_ATTR,
+	parse_pathspec(&pathspec, 0,
 		       PATHSPEC_PREFER_FULL |
 		       PATHSPEC_SYMLINK_LEADING_PATH,
 		       prefix, argv);
@@ -430,7 +430,7 @@
 		if (pathspec.nr)
 			die(_("'%s' and pathspec arguments cannot be used together"), "--pathspec-from-file");
 
-		parse_pathspec_file(&pathspec, PATHSPEC_ATTR,
+		parse_pathspec_file(&pathspec, 0,
 				    PATHSPEC_PREFER_FULL |
 				    PATHSPEC_SYMLINK_LEADING_PATH,
 				    prefix, pathspec_from_file, pathspec_file_nul);
@@ -501,7 +501,8 @@
 			       PATHSPEC_LITERAL |
 			       PATHSPEC_GLOB |
 			       PATHSPEC_ICASE |
-			       PATHSPEC_EXCLUDE);
+			       PATHSPEC_EXCLUDE |
+			       PATHSPEC_ATTR);
 
 		for (i = 0; i < pathspec.nr; i++) {
 			const char *path = pathspec.items[i].match;
diff --git a/builtin/bisect.c b/builtin/bisect.c
index 032beaa..f69c3f7 100644
--- a/builtin/bisect.c
+++ b/builtin/bisect.c
@@ -16,7 +16,6 @@
 #include "revision.h"
 
 static GIT_PATH_FUNC(git_path_bisect_terms, "BISECT_TERMS")
-static GIT_PATH_FUNC(git_path_bisect_expected_rev, "BISECT_EXPECTED_REV")
 static GIT_PATH_FUNC(git_path_bisect_ancestors_ok, "BISECT_ANCESTORS_OK")
 static GIT_PATH_FUNC(git_path_bisect_start, "BISECT_START")
 static GIT_PATH_FUNC(git_path_bisect_log, "BISECT_LOG")
@@ -919,7 +918,6 @@
 	const char *state;
 	int i, verify_expected = 1;
 	struct object_id oid, expected;
-	struct strbuf buf = STRBUF_INIT;
 	struct oid_array revs = OID_ARRAY_INIT;
 
 	if (!argc)
@@ -974,10 +972,8 @@
 		oid_array_append(&revs, &commit->object.oid);
 	}
 
-	if (strbuf_read_file(&buf, git_path_bisect_expected_rev(), 0) < the_hash_algo->hexsz ||
-	    get_oid_hex(buf.buf, &expected) < 0)
+	if (read_ref("BISECT_EXPECTED_REV", &expected))
 		verify_expected = 0; /* Ignore invalid file contents */
-	strbuf_release(&buf);
 
 	for (i = 0; i < revs.nr; i++) {
 		if (bisect_write(state, oid_to_hex(&revs.oid[i]), terms, 0)) {
@@ -986,7 +982,7 @@
 		}
 		if (verify_expected && !oideq(&revs.oid[i], &expected)) {
 			unlink_or_warn(git_path_bisect_ancestors_ok());
-			unlink_or_warn(git_path_bisect_expected_rev());
+			delete_ref(NULL, "BISECT_EXPECTED_REV", NULL, REF_NO_DEREF);
 			verify_expected = 0;
 		}
 	}
diff --git a/builtin/branch.c b/builtin/branch.c
index 6e30d5e..cfb63cc 100644
--- a/builtin/branch.c
+++ b/builtin/branch.c
@@ -24,6 +24,7 @@
 #include "ref-filter.h"
 #include "worktree.h"
 #include "help.h"
+#include "advice.h"
 #include "commit-reach.h"
 
 static const char * const builtin_branch_usage[] = {
@@ -42,7 +43,6 @@
 static struct object_id head_oid;
 static int recurse_submodules = 0;
 static int submodule_propagate_branches = 0;
-static int omit_empty = 0;
 
 static int branch_use_color = -1;
 static char branch_colors[][COLOR_MAXLEN] = {
@@ -191,9 +191,10 @@
 		return -1;
 	}
 	if (!force && !branch_merged(kinds, branchname, rev, head_rev)) {
-		error(_("the branch '%s' is not fully merged.\n"
-		      "If you are sure you want to delete it, "
-		      "run 'git branch -D %s'"), branchname, branchname);
+		error(_("the branch '%s' is not fully merged"), branchname);
+		advise_if_enabled(ADVICE_FORCE_DELETE_BRANCH,
+				  _("If you are sure you want to delete it, "
+				  "run 'git branch -D %s'"), branchname);
 		return -1;
 	}
 	return 0;
@@ -435,8 +436,6 @@
 {
 	int i;
 	struct ref_array array;
-	struct strbuf out = STRBUF_INIT;
-	struct strbuf err = STRBUF_INIT;
 	int maxwidth = 0;
 	const char *remote_prefix = "";
 	char *to_free = NULL;
@@ -466,24 +465,27 @@
 	filter_ahead_behind(the_repository, format, &array);
 	ref_array_sort(sorting, &array);
 
-	for (i = 0; i < array.nr; i++) {
-		strbuf_reset(&err);
-		strbuf_reset(&out);
-		if (format_ref_array_item(array.items[i], format, &out, &err))
-			die("%s", err.buf);
-		if (column_active(colopts)) {
-			assert(!filter->verbose && "--column and --verbose are incompatible");
-			 /* format to a string_list to let print_columns() do its job */
+	if (column_active(colopts)) {
+		struct strbuf out = STRBUF_INIT, err = STRBUF_INIT;
+
+		assert(!filter->verbose && "--column and --verbose are incompatible");
+
+		for (i = 0; i < array.nr; i++) {
+			strbuf_reset(&err);
+			strbuf_reset(&out);
+			if (format_ref_array_item(array.items[i], format, &out, &err))
+				die("%s", err.buf);
+
+			/* format to a string_list to let print_columns() do its job */
 			string_list_append(output, out.buf);
-		} else {
-			fwrite(out.buf, 1, out.len, stdout);
-			if (out.len || !omit_empty)
-				putchar('\n');
 		}
+
+		strbuf_release(&err);
+		strbuf_release(&out);
+	} else {
+		print_formatted_ref_array(&array, format);
 	}
 
-	strbuf_release(&err);
-	strbuf_release(&out);
 	ref_array_clear(&array);
 	free(to_free);
 }
@@ -734,7 +736,7 @@
 		OPT_BIT('D', NULL, &delete, N_("delete branch (even if not merged)"), 2),
 		OPT_BIT('m', "move", &rename, N_("move/rename a branch and its reflog"), 1),
 		OPT_BIT('M', NULL, &rename, N_("move/rename a branch, even if target exists"), 2),
-		OPT_BOOL(0, "omit-empty",  &omit_empty,
+		OPT_BOOL(0, "omit-empty",  &format.array_opts.omit_empty,
 			N_("do not output a newline after empty formatted refs")),
 		OPT_BIT('c', "copy", &copy, N_("copy a branch and its reflog"), 1),
 		OPT_BIT('C', NULL, &copy, N_("copy a branch, even if target exists"), 2),
@@ -764,7 +766,13 @@
 	if (argc == 2 && !strcmp(argv[1], "-h"))
 		usage_with_options(builtin_branch_usage, options);
 
+	/*
+	 * Try to set sort keys from config. If config does not set any,
+	 * fall back on default (refname) sorting.
+	 */
 	git_config(git_branch_config, &sorting_options);
+	if (!sorting_options.nr)
+		string_list_append(&sorting_options, "refname");
 
 	track = git_branch_track;
 
diff --git a/builtin/cat-file.c b/builtin/cat-file.c
index 7d48993..bbf8511 100644
--- a/builtin/cat-file.c
+++ b/builtin/cat-file.c
@@ -221,6 +221,10 @@
 								     &type,
 								     &size);
 				const char *target;
+
+				if (!buffer)
+					die(_("unable to read %s"), oid_to_hex(&oid));
+
 				if (!skip_prefix(buffer, "object ", &target) ||
 				    get_oid_hex(target, &blob_oid))
 					die("%s not a valid tag", oid_to_hex(&oid));
@@ -416,6 +420,8 @@
 
 		contents = repo_read_object_file(the_repository, oid, &type,
 						 &size);
+		if (!contents)
+			die("object %s disappeared", oid_to_hex(oid));
 
 		if (use_mailmap) {
 			size_t s = size;
@@ -423,8 +429,6 @@
 			size = cast_size_t_to_ulong(s);
 		}
 
-		if (!contents)
-			die("object %s disappeared", oid_to_hex(oid));
 		if (type != data->type)
 			die("object %s changed type!?", oid_to_hex(oid));
 		if (data->info.sizep && size != data->size && !use_mailmap)
@@ -481,6 +485,8 @@
 
 			buf = repo_read_object_file(the_repository, &data->oid, &data->type,
 						    &data->size);
+			if (!buf)
+				die(_("unable to read %s"), oid_to_hex(&data->oid));
 			buf = replace_idents_using_mailmap(buf, &s);
 			data->size = cast_size_t_to_ulong(s);
 
diff --git a/builtin/checkout.c b/builtin/checkout.c
index 3a7bfde..a6e3093 100644
--- a/builtin/checkout.c
+++ b/builtin/checkout.c
@@ -1515,6 +1515,26 @@
 	wt_status_state_free_buffers(&state);
 }
 
+/*
+ * die if attempting to checkout an existing branch that is in use
+ * in another worktree, unless ignore-other-wortrees option is given.
+ * The check is bypassed when the branch is already the current one,
+ * as it will not make things any worse.
+ */
+static void die_if_switching_to_a_branch_in_use(struct checkout_opts *opts,
+						const char *full_ref)
+{
+	int flags;
+	char *head_ref;
+
+	if (opts->ignore_other_worktrees)
+		return;
+	head_ref = resolve_refdup("HEAD", 0, NULL, &flags);
+	if (head_ref && (!(flags & REF_ISSYMREF) || strcmp(head_ref, full_ref)))
+		die_if_checked_out(full_ref, 1);
+	free(head_ref);
+}
+
 static int checkout_branch(struct checkout_opts *opts,
 			   struct branch_info *new_branch_info)
 {
@@ -1575,14 +1595,15 @@
 	if (!opts->can_switch_when_in_progress)
 		die_if_some_operation_in_progress();
 
-	if (new_branch_info->path && !opts->force_detach && !opts->new_branch &&
-	    !opts->ignore_other_worktrees) {
-		int flag;
-		char *head_ref = resolve_refdup("HEAD", 0, NULL, &flag);
-		if (head_ref &&
-		    (!(flag & REF_ISSYMREF) || strcmp(head_ref, new_branch_info->path)))
-			die_if_checked_out(new_branch_info->path, 1);
-		free(head_ref);
+	/* "git checkout <branch>" */
+	if (new_branch_info->path && !opts->force_detach && !opts->new_branch)
+		die_if_switching_to_a_branch_in_use(opts, new_branch_info->path);
+
+	/* "git checkout -B <branch>" */
+	if (opts->new_branch_force) {
+		char *full_ref = xstrfmt("refs/heads/%s", opts->new_branch);
+		die_if_switching_to_a_branch_in_use(opts, full_ref);
+		free(full_ref);
 	}
 
 	if (!new_branch_info->commit && opts->new_branch) {
diff --git a/builtin/clone.c b/builtin/clone.c
index 315befa..bad1b70 100644
--- a/builtin/clone.c
+++ b/builtin/clone.c
@@ -71,6 +71,7 @@
 static char *option_branch = NULL;
 static struct string_list option_not = STRING_LIST_INIT_NODUP;
 static const char *real_git_dir;
+static const char *ref_format;
 static char *option_upload_pack = "git-upload-pack";
 static int option_verbosity;
 static int option_progress = -1;
@@ -156,6 +157,8 @@
 		    N_("any cloned submodules will be shallow")),
 	OPT_STRING(0, "separate-git-dir", &real_git_dir, N_("gitdir"),
 		   N_("separate git dir from working tree")),
+	OPT_STRING(0, "ref-format", &ref_format, N_("format"),
+		   N_("specify the reference format to use")),
 	OPT_STRING_LIST('c', "config", &option_config, N_("key=value"),
 			N_("set config inside the new repository")),
 	OPT_STRING_LIST(0, "server-option", &server_options,
@@ -931,6 +934,7 @@
 	int submodule_progress;
 	int filter_submodules = 0;
 	int hash_algo;
+	unsigned int ref_storage_format = REF_STORAGE_FORMAT_UNKNOWN;
 	const int do_not_override_repo_unix_permissions = -1;
 
 	struct transport_ls_refs_options transport_ls_refs_options =
@@ -956,6 +960,12 @@
 	if (option_single_branch == -1)
 		option_single_branch = deepen ? 1 : 0;
 
+	if (ref_format) {
+		ref_storage_format = ref_storage_format_by_name(ref_format);
+		if (ref_storage_format == REF_STORAGE_FORMAT_UNKNOWN)
+			die(_("unknown ref storage format '%s'"), ref_format);
+	}
+
 	if (option_mirror)
 		option_bare = 1;
 
@@ -1100,8 +1110,15 @@
 		}
 	}
 
-	init_db(git_dir, real_git_dir, option_template, GIT_HASH_UNKNOWN, NULL,
-		do_not_override_repo_unix_permissions, INIT_DB_QUIET);
+	/*
+	 * Initialize the repository, but skip initializing the reference
+	 * database. We do not yet know about the object format of the
+	 * repository, and reference backends may persist that information into
+	 * their on-disk data structures.
+	 */
+	init_db(git_dir, real_git_dir, option_template, GIT_HASH_UNKNOWN,
+		ref_storage_format, NULL,
+		do_not_override_repo_unix_permissions, INIT_DB_QUIET | INIT_DB_SKIP_REFDB);
 
 	if (real_git_dir) {
 		free((char *)git_dir);
@@ -1188,10 +1205,7 @@
 	if (option_required_reference.nr || option_optional_reference.nr)
 		setup_reference();
 
-	if (option_sparse_checkout && git_sparse_checkout_init(dir))
-		return 1;
-
-	remote = remote_get(remote_name);
+	remote = remote_get_early(remote_name);
 
 	refspec_appendf(&remote->fetch, "+%s*:%s*", src_ref_prefix,
 			branch_top.buf);
@@ -1269,6 +1283,27 @@
 	if (transport->smart_options && !deepen && !filter_options.choice)
 		transport->smart_options->check_self_contained_and_connected = 1;
 
+	strvec_push(&transport_ls_refs_options.ref_prefixes, "HEAD");
+	refspec_ref_prefixes(&remote->fetch,
+			     &transport_ls_refs_options.ref_prefixes);
+	if (option_branch)
+		expand_ref_prefix(&transport_ls_refs_options.ref_prefixes,
+				  option_branch);
+	if (!option_no_tags)
+		strvec_push(&transport_ls_refs_options.ref_prefixes,
+			    "refs/tags/");
+
+	refs = transport_get_remote_refs(transport, &transport_ls_refs_options);
+
+	/*
+	 * Now that we know what algorithm the remote side is using, let's set
+	 * ours to the same thing.
+	 */
+	hash_algo = hash_algo_by_ptr(transport_get_hash_algo(transport));
+	initialize_repository_version(hash_algo, the_repository->ref_storage_format, 1);
+	repo_set_hash_algo(the_repository, hash_algo);
+	create_reference_database(the_repository->ref_storage_format, NULL, 1);
+
 	/*
 	 * Before fetching from the remote, download and install bundle
 	 * data from the --bundle-uri option.
@@ -1284,24 +1319,7 @@
 				bundle_uri);
 		else if (has_heuristic)
 			git_config_set_gently("fetch.bundleuri", bundle_uri);
-	}
-
-	strvec_push(&transport_ls_refs_options.ref_prefixes, "HEAD");
-	refspec_ref_prefixes(&remote->fetch,
-			     &transport_ls_refs_options.ref_prefixes);
-	if (option_branch)
-		expand_ref_prefix(&transport_ls_refs_options.ref_prefixes,
-				  option_branch);
-	if (!option_no_tags)
-		strvec_push(&transport_ls_refs_options.ref_prefixes,
-			    "refs/tags/");
-
-	refs = transport_get_remote_refs(transport, &transport_ls_refs_options);
-
-	if (refs)
-		mapped_refs = wanted_peer_refs(refs, &remote->fetch);
-
-	if (!bundle_uri) {
+	} else {
 		/*
 		* Populate transport->got_remote_bundle_uri and
 		* transport->bundle_uri. We might get nothing.
@@ -1322,13 +1340,8 @@
 		}
 	}
 
-		/*
-		 * Now that we know what algorithm the remote side is using,
-		 * let's set ours to the same thing.
-		 */
-	hash_algo = hash_algo_by_ptr(transport_get_hash_algo(transport));
-	initialize_repository_version(hash_algo, 1);
-	repo_set_hash_algo(the_repository, hash_algo);
+	if (refs)
+		mapped_refs = wanted_peer_refs(refs, &remote->fetch);
 
 	if (mapped_refs) {
 		/*
@@ -1431,6 +1444,9 @@
 		dissociate_from_references();
 	}
 
+	if (option_sparse_checkout && git_sparse_checkout_init(dir))
+		return 1;
+
 	junk_mode = JUNK_LEAVE_REPO;
 	err = checkout(submodule_progress, filter_submodules);
 
diff --git a/builtin/commit-graph.c b/builtin/commit-graph.c
index 666ad57..7102ee9 100644
--- a/builtin/commit-graph.c
+++ b/builtin/commit-graph.c
@@ -21,7 +21,7 @@
 	N_("git commit-graph write [--object-dir <dir>] [--append]\n" \
 	   "                       [--split[=<strategy>]] [--reachable | --stdin-packs | --stdin-commits]\n" \
 	   "                       [--changed-paths] [--[no-]max-new-filters <n>] [--[no-]progress]\n" \
-	   "                       <split options>")
+	   "                       <split-options>")
 
 static const char * builtin_commit_graph_verify_usage[] = {
 	BUILTIN_COMMIT_GRAPH_VERIFY_USAGE,
diff --git a/builtin/commit.c b/builtin/commit.c
index 65196a2..6d1fa71 100644
--- a/builtin/commit.c
+++ b/builtin/commit.c
@@ -1877,7 +1877,7 @@
 				     &oid, flags);
 	}
 
-	apply_autostash(git_path_merge_autostash(the_repository));
+	apply_autostash_ref(the_repository, "MERGE_AUTOSTASH");
 
 cleanup:
 	strbuf_release(&author_ident);
diff --git a/builtin/config.c b/builtin/config.c
index 11a4d4e..b55bfae 100644
--- a/builtin/config.c
+++ b/builtin/config.c
@@ -708,10 +708,8 @@
 	}
 
 	if (use_global_config) {
-		char *user_config, *xdg_config;
-
-		git_global_config(&user_config, &xdg_config);
-		if (!user_config)
+		given_config_source.file = git_global_config();
+		if (!given_config_source.file)
 			/*
 			 * It is unknown if HOME/.gitconfig exists, so
 			 * we do not know if we should write to XDG
@@ -719,19 +717,8 @@
 			 * is set and points at a sane location.
 			 */
 			die(_("$HOME not set"));
-
 		given_config_source.scope = CONFIG_SCOPE_GLOBAL;
-
-		if (access_or_warn(user_config, R_OK, 0) &&
-		    xdg_config && !access_or_warn(xdg_config, R_OK, 0)) {
-			given_config_source.file = xdg_config;
-			free(user_config);
-		} else {
-			given_config_source.file = user_config;
-			free(xdg_config);
-		}
-	}
-	else if (use_system_config) {
+	} else if (use_system_config) {
 		given_config_source.file = git_system_config();
 		given_config_source.scope = CONFIG_SCOPE_SYSTEM;
 	} else if (use_local_config) {
@@ -760,7 +747,6 @@
 		given_config_source.scope = CONFIG_SCOPE_COMMAND;
 	}
 
-
 	if (respect_includes_opt == -1)
 		config_options.respect_includes = !given_config_source.file;
 	else
diff --git a/builtin/fetch.c b/builtin/fetch.c
index 119f1a7..3aedfd1 100644
--- a/builtin/fetch.c
+++ b/builtin/fetch.c
@@ -100,6 +100,7 @@
 
 struct fetch_config {
 	enum display_format display_format;
+	int all;
 	int prune;
 	int prune_tags;
 	int show_forced_updates;
@@ -113,6 +114,11 @@
 {
 	struct fetch_config *fetch_config = cb;
 
+	if (!strcmp(k, "fetch.all")) {
+		fetch_config->all = git_config_bool(k, v);
+		return 0;
+	}
+
 	if (!strcmp(k, "fetch.prune")) {
 		fetch_config->prune = git_config_bool(k, v);
 		return 0;
@@ -2130,7 +2136,7 @@
 	const char *bundle_uri;
 	struct string_list list = STRING_LIST_INIT_DUP;
 	struct remote *remote = NULL;
-	int all = 0, multiple = 0;
+	int all = -1, multiple = 0;
 	int result = 0;
 	int prune_tags_ok = 1;
 	int enable_auto_gc = 1;
@@ -2335,11 +2341,20 @@
 	    fetch_bundle_uri(the_repository, bundle_uri, NULL))
 		warning(_("failed to fetch bundles from '%s'"), bundle_uri);
 
+	if (all < 0) {
+		/*
+		 * no --[no-]all given;
+		 * only use config option if no remote was explicitly specified
+		 */
+		all = (!argc) ? config.all : 0;
+	}
+
 	if (all) {
 		if (argc == 1)
 			die(_("fetch --all does not take a repository argument"));
 		else if (argc > 1)
 			die(_("fetch --all does not make sense with refspecs"));
+
 		(void) for_each_remote(get_one_remote_for_fetch, &list);
 
 		/* do not do fetch_multiple() of one */
diff --git a/builtin/for-each-ref.c b/builtin/for-each-ref.c
index b5bc700..3885a9c 100644
--- a/builtin/for-each-ref.c
+++ b/builtin/for-each-ref.c
@@ -18,15 +18,11 @@
 
 int cmd_for_each_ref(int argc, const char **argv, const char *prefix)
 {
-	int i;
 	struct ref_sorting *sorting;
 	struct string_list sorting_options = STRING_LIST_INIT_DUP;
-	int maxcount = 0, icase = 0, omit_empty = 0;
-	struct ref_array array;
+	int icase = 0;
 	struct ref_filter filter = REF_FILTER_INIT;
 	struct ref_format format = REF_FORMAT_INIT;
-	struct strbuf output = STRBUF_INIT;
-	struct strbuf err = STRBUF_INIT;
 	int from_stdin = 0;
 	struct strvec vec = STRVEC_INIT;
 
@@ -39,11 +35,11 @@
 			N_("quote placeholders suitably for python"), QUOTE_PYTHON),
 		OPT_BIT(0 , "tcl",  &format.quote_style,
 			N_("quote placeholders suitably for Tcl"), QUOTE_TCL),
-		OPT_BOOL(0, "omit-empty",  &omit_empty,
+		OPT_BOOL(0, "omit-empty",  &format.array_opts.omit_empty,
 			N_("do not output a newline after empty formatted refs")),
 
 		OPT_GROUP(""),
-		OPT_INTEGER( 0 , "count", &maxcount, N_("show only <n> matched refs")),
+		OPT_INTEGER( 0 , "count", &format.array_opts.max_count, N_("show only <n> matched refs")),
 		OPT_STRING(  0 , "format", &format.format, N_("format"), N_("format to use for the output")),
 		OPT__COLOR(&format.use_color, N_("respect format colors")),
 		OPT_REF_FILTER_EXCLUDE(&filter),
@@ -60,15 +56,16 @@
 		OPT_END(),
 	};
 
-	memset(&array, 0, sizeof(array));
-
 	format.format = "%(objectname) %(objecttype)\t%(refname)";
 
 	git_config(git_default_config, NULL);
 
+	/* Set default (refname) sorting */
+	string_list_append(&sorting_options, "refname");
+
 	parse_options(argc, argv, prefix, opts, for_each_ref_usage, 0);
-	if (maxcount < 0) {
-		error("invalid --count argument: `%d'", maxcount);
+	if (format.array_opts.max_count < 0) {
+		error("invalid --count argument: `%d'", format.array_opts.max_count);
 		usage_with_options(for_each_ref_usage, opts);
 	}
 	if (HAS_MULTI_BITS(format.quote_style)) {
@@ -100,26 +97,8 @@
 	}
 
 	filter.match_as_path = 1;
-	filter_refs(&array, &filter, FILTER_REFS_ALL);
-	filter_ahead_behind(the_repository, &format, &array);
+	filter_and_format_refs(&filter, FILTER_REFS_ALL, sorting, &format);
 
-	ref_array_sort(sorting, &array);
-
-	if (!maxcount || array.nr < maxcount)
-		maxcount = array.nr;
-	for (i = 0; i < maxcount; i++) {
-		strbuf_reset(&err);
-		strbuf_reset(&output);
-		if (format_ref_array_item(array.items[i], &format, &output, &err))
-			die("%s", err.buf);
-		fwrite(output.buf, 1, output.len, stdout);
-		if (output.len || !omit_empty)
-			putchar('\n');
-	}
-
-	strbuf_release(&err);
-	strbuf_release(&output);
-	ref_array_clear(&array);
 	ref_filter_clear(&filter);
 	ref_sorting_release(sorting);
 	strvec_clear(&vec);
diff --git a/builtin/gc.c b/builtin/gc.c
index 7c11d5e..cb80ced 100644
--- a/builtin/gc.c
+++ b/builtin/gc.c
@@ -1543,19 +1543,18 @@
 
 	if (!found) {
 		int rc;
-		char *user_config = NULL, *xdg_config = NULL;
+		char *global_config_file = NULL;
 
 		if (!config_file) {
-			git_global_config(&user_config, &xdg_config);
-			config_file = user_config;
-			if (!user_config)
-				die(_("$HOME not set"));
+			global_config_file = git_global_config();
+			config_file = global_config_file;
 		}
+		if (!config_file)
+			die(_("$HOME not set"));
 		rc = git_config_set_multivar_in_file_gently(
 			config_file, "maintenance.repo", maintpath,
 			CONFIG_REGEX_NONE, 0);
-		free(user_config);
-		free(xdg_config);
+		free(global_config_file);
 
 		if (rc)
 			die(_("unable to add '%s' value of '%s'"),
@@ -1612,18 +1611,18 @@
 
 	if (found) {
 		int rc;
-		char *user_config = NULL, *xdg_config = NULL;
+		char *global_config_file = NULL;
+
 		if (!config_file) {
-			git_global_config(&user_config, &xdg_config);
-			config_file = user_config;
-			if (!user_config)
-				die(_("$HOME not set"));
+			global_config_file = git_global_config();
+			config_file = global_config_file;
 		}
+		if (!config_file)
+			die(_("$HOME not set"));
 		rc = git_config_set_multivar_in_file_gently(
 			config_file, key, NULL, maintpath,
 			CONFIG_FLAGS_MULTI_REPLACE | CONFIG_FLAGS_FIXED_VALUE);
-		free(user_config);
-		free(xdg_config);
+		free(global_config_file);
 
 		if (rc &&
 		    (!force || rc == CONFIG_NOTHING_SET))
diff --git a/builtin/grep.c b/builtin/grep.c
index c8e33f9..982bcfc 100644
--- a/builtin/grep.c
+++ b/builtin/grep.c
@@ -571,6 +571,8 @@
 
 			data = repo_read_object_file(the_repository, &ce->oid,
 						     &type, &size);
+			if (!data)
+				die(_("unable to read tree %s"), oid_to_hex(&ce->oid));
 			init_tree_desc(&tree, data, size);
 
 			hit |= grep_tree(opt, pathspec, &tree, &name, 0, 0);
diff --git a/builtin/index-pack.c b/builtin/index-pack.c
index 1ea87e0..a3a37bd 100644
--- a/builtin/index-pack.c
+++ b/builtin/index-pack.c
@@ -24,7 +24,7 @@
 #include "setup.h"
 
 static const char index_pack_usage[] =
-"git index-pack [-v] [-o <index-file>] [--keep | --keep=<msg>] [--[no-]rev-index] [--verify] [--strict] (<pack-file> | --stdin [--fix-thin] [<pack-file>])";
+"git index-pack [-v] [-o <index-file>] [--keep | --keep=<msg>] [--[no-]rev-index] [--verify] [--strict[=<msg-id>=<severity>...]] [--fsck-objects[=<msg-id>=<severity>...]] (<pack-file> | --stdin [--fix-thin] [<pack-file>])";
 
 struct object_entry {
 	struct pack_idx_entry idx;
@@ -1785,8 +1785,9 @@
 			} else if (!strcmp(arg, "--check-self-contained-and-connected")) {
 				strict = 1;
 				check_self_contained_and_connected = 1;
-			} else if (!strcmp(arg, "--fsck-objects")) {
+			} else if (skip_to_optional_arg(arg, "--fsck-objects", &arg)) {
 				do_fsck_object = 1;
+				fsck_set_msg_types(&fsck_options, arg);
 			} else if (!strcmp(arg, "--verify")) {
 				verify = 1;
 			} else if (!strcmp(arg, "--verify-stat")) {
diff --git a/builtin/init-db.c b/builtin/init-db.c
index b89814a..0170469 100644
--- a/builtin/init-db.c
+++ b/builtin/init-db.c
@@ -10,6 +10,8 @@
 #include "object-file.h"
 #include "parse-options.h"
 #include "path.h"
+#include "refs.h"
+#include "repository.h"
 #include "setup.h"
 #include "strbuf.h"
 
@@ -56,6 +58,7 @@
 static const char *const init_db_usage[] = {
 	N_("git init [-q | --quiet] [--bare] [--template=<template-directory>]\n"
 	   "         [--separate-git-dir <git-dir>] [--object-format=<format>]\n"
+	   "         [--ref-format=<format>]\n"
 	   "         [-b <branch-name> | --initial-branch=<branch-name>]\n"
 	   "         [--shared[=<permissions>]] [<directory>]"),
 	NULL
@@ -75,8 +78,10 @@
 	const char *template_dir = NULL;
 	unsigned int flags = 0;
 	const char *object_format = NULL;
+	const char *ref_format = NULL;
 	const char *initial_branch = NULL;
 	int hash_algo = GIT_HASH_UNKNOWN;
+	unsigned int ref_storage_format = REF_STORAGE_FORMAT_UNKNOWN;
 	int init_shared_repository = -1;
 	const struct option init_db_options[] = {
 		OPT_STRING(0, "template", &template_dir, N_("template-directory"),
@@ -94,6 +99,8 @@
 			   N_("override the name of the initial branch")),
 		OPT_STRING(0, "object-format", &object_format, N_("hash"),
 			   N_("specify the hash algorithm to use")),
+		OPT_STRING(0, "ref-format", &ref_format, N_("format"),
+			   N_("specify the reference format to use")),
 		OPT_END()
 	};
 
@@ -157,6 +164,12 @@
 			die(_("unknown hash algorithm '%s'"), object_format);
 	}
 
+	if (ref_format) {
+		ref_storage_format = ref_storage_format_by_name(ref_format);
+		if (ref_storage_format == REF_STORAGE_FORMAT_UNKNOWN)
+			die(_("unknown ref storage format '%s'"), ref_format);
+	}
+
 	if (init_shared_repository != -1)
 		set_shared_repository(init_shared_repository);
 
@@ -235,5 +248,6 @@
 
 	flags |= INIT_DB_EXIST_OK;
 	return init_db(git_dir, real_git_dir, template_dir, hash_algo,
-		       initial_branch, init_shared_repository, flags);
+		       ref_storage_format, initial_branch,
+		       init_shared_repository, flags);
 }
diff --git a/builtin/log.c b/builtin/log.c
index af6403c..db1808d 100644
--- a/builtin/log.c
+++ b/builtin/log.c
@@ -1365,6 +1365,7 @@
 	pp.date_mode.type = DATE_RFC2822;
 	pp.rev = rev;
 	pp.print_email_subject = 1;
+	pp.encode_email_headers = rev->encode_email_headers;
 	pp_user_info(&pp, NULL, &sb, committer, encoding);
 	prepare_cover_text(&pp, description_file, branch_name, &sb,
 			   encoding, need_8bit_cte);
diff --git a/builtin/ls-remote.c b/builtin/ls-remote.c
index 2975ea4..e8d65eb 100644
--- a/builtin/ls-remote.c
+++ b/builtin/ls-remote.c
@@ -57,6 +57,7 @@
 	struct transport *transport;
 	const struct ref *ref;
 	struct ref_array ref_array;
+	struct ref_sorting *sorting;
 	struct string_list sorting_options = STRING_LIST_INIT_DUP;
 
 	struct option options[] = {
@@ -140,13 +141,8 @@
 		item->symref = xstrdup_or_null(ref->symref);
 	}
 
-	if (sorting_options.nr) {
-		struct ref_sorting *sorting;
-
-		sorting = ref_sorting_options(&sorting_options);
-		ref_array_sort(sorting, &ref_array);
-		ref_sorting_release(sorting);
-	}
+	sorting = ref_sorting_options(&sorting_options);
+	ref_array_sort(sorting, &ref_array);
 
 	for (i = 0; i < ref_array.nr; i++) {
 		const struct ref_array_item *ref = ref_array.items[i];
@@ -156,6 +152,7 @@
 		status = 0; /* we found something */
 	}
 
+	ref_sorting_release(sorting);
 	ref_array_clear(&ref_array);
 	if (transport_disconnect(transport))
 		status = 1;
diff --git a/builtin/merge-file.c b/builtin/merge-file.c
index 832c93d..1f98733 100644
--- a/builtin/merge-file.c
+++ b/builtin/merge-file.c
@@ -1,5 +1,6 @@
 #include "builtin.h"
 #include "abspath.h"
+#include "diff.h"
 #include "hex.h"
 #include "object-name.h"
 #include "object-store.h"
@@ -28,6 +29,30 @@
 	return 0;
 }
 
+static int set_diff_algorithm(xpparam_t *xpp,
+			      const char *alg)
+{
+	long diff_algorithm = parse_algorithm_value(alg);
+	if (diff_algorithm < 0)
+		return -1;
+	xpp->flags = (xpp->flags & ~XDF_DIFF_ALGORITHM_MASK) | diff_algorithm;
+	return 0;
+}
+
+static int diff_algorithm_cb(const struct option *opt,
+				const char *arg, int unset)
+{
+	xpparam_t *xpp = opt->value;
+
+	BUG_ON_OPT_NEG(unset);
+
+	if (set_diff_algorithm(xpp, arg))
+		return error(_("option diff-algorithm accepts \"myers\", "
+			       "\"minimal\", \"patience\" and \"histogram\""));
+
+	return 0;
+}
+
 int cmd_merge_file(int argc, const char **argv, const char *prefix)
 {
 	const char *names[3] = { 0 };
@@ -48,6 +73,9 @@
 			    XDL_MERGE_FAVOR_THEIRS),
 		OPT_SET_INT(0, "union", &xmp.favor, N_("for conflicts, use a union version"),
 			    XDL_MERGE_FAVOR_UNION),
+		OPT_CALLBACK_F(0, "diff-algorithm", &xmp.xpp, N_("<algorithm>"),
+			     N_("choose a diff algorithm"),
+			     PARSE_OPT_NONEG, diff_algorithm_cb),
 		OPT_INTEGER(0, "marker-size", &xmp.marker_size,
 			    N_("for conflicts, use this marker size")),
 		OPT__QUIET(&quiet, N_("do not warn about conflicts")),
diff --git a/builtin/merge.c b/builtin/merge.c
index ebbe050..8f81978 100644
--- a/builtin/merge.c
+++ b/builtin/merge.c
@@ -476,7 +476,7 @@
 	run_hooks_l("post-merge", squash ? "1" : "0", NULL);
 
 	if (new_head)
-		apply_autostash(git_path_merge_autostash(the_repository));
+		apply_autostash_ref(the_repository, "MERGE_AUTOSTASH");
 	strbuf_release(&reflog_message);
 }
 
@@ -1315,7 +1315,8 @@
 	if (abort_current_merge) {
 		int nargc = 2;
 		const char *nargv[] = {"reset", "--merge", NULL};
-		struct strbuf stash_oid = STRBUF_INIT;
+		char stash_oid_hex[GIT_MAX_HEXSZ + 1];
+		struct object_id stash_oid = {0};
 
 		if (orig_argc != 2)
 			usage_msg_opt(_("--abort expects no arguments"),
@@ -1324,17 +1325,17 @@
 		if (!file_exists(git_path_merge_head(the_repository)))
 			die(_("There is no merge to abort (MERGE_HEAD missing)."));
 
-		if (read_oneliner(&stash_oid, git_path_merge_autostash(the_repository),
-		    READ_ONELINER_SKIP_IF_EMPTY))
-			unlink(git_path_merge_autostash(the_repository));
+		if (!read_ref("MERGE_AUTOSTASH", &stash_oid))
+			delete_ref("", "MERGE_AUTOSTASH", &stash_oid, REF_NO_DEREF);
 
 		/* Invoke 'git reset --merge' */
 		ret = cmd_reset(nargc, nargv, prefix);
 
-		if (stash_oid.len)
-			apply_autostash_oid(stash_oid.buf);
+		if (!is_null_oid(&stash_oid)) {
+			oid_to_hex_r(stash_oid_hex, &stash_oid);
+			apply_autostash_oid(stash_oid_hex);
+		}
 
-		strbuf_release(&stash_oid);
 		goto done;
 	}
 
@@ -1563,13 +1564,12 @@
 		}
 
 		if (autostash)
-			create_autostash(the_repository,
-					 git_path_merge_autostash(the_repository));
+			create_autostash_ref(the_repository, "MERGE_AUTOSTASH");
 		if (checkout_fast_forward(the_repository,
 					  &head_commit->object.oid,
 					  &commit->object.oid,
 					  overwrite_ignore)) {
-			apply_autostash(git_path_merge_autostash(the_repository));
+			apply_autostash_ref(the_repository, "MERGE_AUTOSTASH");
 			ret = 1;
 			goto done;
 		}
@@ -1655,8 +1655,7 @@
 		die_ff_impossible();
 
 	if (autostash)
-		create_autostash(the_repository,
-				 git_path_merge_autostash(the_repository));
+		create_autostash_ref(the_repository, "MERGE_AUTOSTASH");
 
 	/* We are going to make a new commit. */
 	git_committer_info(IDENT_STRICT);
@@ -1741,7 +1740,7 @@
 		else
 			fprintf(stderr, _("Merge with strategy %s failed.\n"),
 				use_strategies[0]->name);
-		apply_autostash(git_path_merge_autostash(the_repository));
+		apply_autostash_ref(the_repository, "MERGE_AUTOSTASH");
 		ret = 2;
 		goto done;
 	} else if (best_strategy == wt_strategy)
diff --git a/builtin/notes.c b/builtin/notes.c
index e65cae0..caf20fd 100644
--- a/builtin/notes.c
+++ b/builtin/notes.c
@@ -716,9 +716,11 @@
 		struct strbuf buf = STRBUF_INIT;
 		char *prev_buf = repo_read_object_file(the_repository, note, &type, &size);
 
-		if (prev_buf && size)
+		if (!prev_buf)
+			die(_("unable to read %s"), oid_to_hex(note));
+		if (size)
 			strbuf_add(&buf, prev_buf, size);
-		if (d.buf.len && prev_buf && size)
+		if (d.buf.len && size)
 			append_separator(&buf);
 		strbuf_insert(&d.buf, 0, buf.buf, buf.len);
 
diff --git a/builtin/pack-objects.c b/builtin/pack-objects.c
index 5c8bfe1..329aeac 100644
--- a/builtin/pack-objects.c
+++ b/builtin/pack-objects.c
@@ -218,13 +218,19 @@
 static int num_preferred_base;
 static struct progress *progress_state;
 
-static struct packed_git *reuse_packfile;
+static struct bitmapped_pack *reuse_packfiles;
+static size_t reuse_packfiles_nr;
+static size_t reuse_packfiles_used_nr;
 static uint32_t reuse_packfile_objects;
 static struct bitmap *reuse_packfile_bitmap;
 
 static int use_bitmap_index_default = 1;
 static int use_bitmap_index = -1;
-static int allow_pack_reuse = 1;
+static enum {
+	NO_PACK_REUSE = 0,
+	SINGLE_PACK_REUSE,
+	MULTI_PACK_REUSE,
+} allow_pack_reuse = SINGLE_PACK_REUSE;
 static enum {
 	WRITE_BITMAP_FALSE = 0,
 	WRITE_BITMAP_QUIET,
@@ -1010,7 +1016,9 @@
 	return reused_chunks[lo-1].difference;
 }
 
-static void write_reused_pack_one(size_t pos, struct hashfile *out,
+static void write_reused_pack_one(struct packed_git *reuse_packfile,
+				  size_t pos, struct hashfile *out,
+				  off_t pack_start,
 				  struct pack_window **w_curs)
 {
 	off_t offset, next, cur;
@@ -1020,7 +1028,8 @@
 	offset = pack_pos_to_offset(reuse_packfile, pos);
 	next = pack_pos_to_offset(reuse_packfile, pos + 1);
 
-	record_reused_object(offset, offset - hashfile_total(out));
+	record_reused_object(offset,
+			     offset - (hashfile_total(out) - pack_start));
 
 	cur = offset;
 	type = unpack_object_header(reuse_packfile, w_curs, &cur, &size);
@@ -1088,41 +1097,93 @@
 	copy_pack_data(out, reuse_packfile, w_curs, offset, next - offset);
 }
 
-static size_t write_reused_pack_verbatim(struct hashfile *out,
+static size_t write_reused_pack_verbatim(struct bitmapped_pack *reuse_packfile,
+					 struct hashfile *out,
+					 off_t pack_start,
 					 struct pack_window **w_curs)
 {
-	size_t pos = 0;
+	size_t pos = reuse_packfile->bitmap_pos;
+	size_t end;
 
-	while (pos < reuse_packfile_bitmap->word_alloc &&
-			reuse_packfile_bitmap->words[pos] == (eword_t)~0)
-		pos++;
+	if (pos % BITS_IN_EWORD) {
+		size_t word_pos = (pos / BITS_IN_EWORD);
+		size_t offset = pos % BITS_IN_EWORD;
+		size_t last;
+		eword_t word = reuse_packfile_bitmap->words[word_pos];
 
-	if (pos) {
-		off_t to_write;
+		if (offset + reuse_packfile->bitmap_nr < BITS_IN_EWORD)
+			last = offset + reuse_packfile->bitmap_nr;
+		else
+			last = BITS_IN_EWORD;
 
-		written = (pos * BITS_IN_EWORD);
-		to_write = pack_pos_to_offset(reuse_packfile, written)
-			- sizeof(struct pack_header);
+		for (; offset < last; offset++) {
+			if (word >> offset == 0)
+				return word_pos;
+			if (!bitmap_get(reuse_packfile_bitmap,
+					word_pos * BITS_IN_EWORD + offset))
+				return word_pos;
+		}
+
+		pos += BITS_IN_EWORD - (pos % BITS_IN_EWORD);
+	}
+
+	/*
+	 * Now we're going to copy as many whole eword_t's as possible.
+	 * "end" is the index of the last whole eword_t we copy, but
+	 * there may be additional bits to process. Those are handled
+	 * individually by write_reused_pack().
+	 *
+	 * Begin by advancing to the first word boundary in range of the
+	 * bit positions occupied by objects in "reuse_packfile". Then
+	 * pick the last word boundary in the same range. If we have at
+	 * least one word's worth of bits to process, continue on.
+	 */
+	end = reuse_packfile->bitmap_pos + reuse_packfile->bitmap_nr;
+	if (end % BITS_IN_EWORD)
+		end -= end % BITS_IN_EWORD;
+	if (pos >= end)
+		return reuse_packfile->bitmap_pos / BITS_IN_EWORD;
+
+	while (pos < end &&
+	       reuse_packfile_bitmap->words[pos / BITS_IN_EWORD] == (eword_t)~0)
+		pos += BITS_IN_EWORD;
+
+	if (pos > end)
+		pos = end;
+
+	if (reuse_packfile->bitmap_pos < pos) {
+		off_t pack_start_off = pack_pos_to_offset(reuse_packfile->p, 0);
+		off_t pack_end_off = pack_pos_to_offset(reuse_packfile->p,
+							pos - reuse_packfile->bitmap_pos);
+
+		written += pos - reuse_packfile->bitmap_pos;
 
 		/* We're recording one chunk, not one object. */
-		record_reused_object(sizeof(struct pack_header), 0);
+		record_reused_object(pack_start_off,
+				     pack_start_off - (hashfile_total(out) - pack_start));
 		hashflush(out);
-		copy_pack_data(out, reuse_packfile, w_curs,
-			sizeof(struct pack_header), to_write);
+		copy_pack_data(out, reuse_packfile->p, w_curs,
+			pack_start_off, pack_end_off - pack_start_off);
 
 		display_progress(progress_state, written);
 	}
-	return pos;
+	if (pos % BITS_IN_EWORD)
+		BUG("attempted to jump past a word boundary to %"PRIuMAX,
+		    (uintmax_t)pos);
+	return pos / BITS_IN_EWORD;
 }
 
-static void write_reused_pack(struct hashfile *f)
+static void write_reused_pack(struct bitmapped_pack *reuse_packfile,
+			      struct hashfile *f)
 {
-	size_t i = 0;
+	size_t i = reuse_packfile->bitmap_pos / BITS_IN_EWORD;
 	uint32_t offset;
+	off_t pack_start = hashfile_total(f) - sizeof(struct pack_header);
 	struct pack_window *w_curs = NULL;
 
 	if (allow_ofs_delta)
-		i = write_reused_pack_verbatim(f, &w_curs);
+		i = write_reused_pack_verbatim(reuse_packfile, f, pack_start,
+					       &w_curs);
 
 	for (; i < reuse_packfile_bitmap->word_alloc; ++i) {
 		eword_t word = reuse_packfile_bitmap->words[i];
@@ -1133,16 +1194,23 @@
 				break;
 
 			offset += ewah_bit_ctz64(word >> offset);
+			if (pos + offset < reuse_packfile->bitmap_pos)
+				continue;
+			if (pos + offset >= reuse_packfile->bitmap_pos + reuse_packfile->bitmap_nr)
+				goto done;
 			/*
 			 * Can use bit positions directly, even for MIDX
 			 * bitmaps. See comment in try_partial_reuse()
 			 * for why.
 			 */
-			write_reused_pack_one(pos + offset, f, &w_curs);
+			write_reused_pack_one(reuse_packfile->p,
+					      pos + offset - reuse_packfile->bitmap_pos,
+					      f, pack_start, &w_curs);
 			display_progress(progress_state, ++written);
 		}
 	}
 
+done:
 	unuse_pack(&w_curs);
 }
 
@@ -1194,9 +1262,14 @@
 
 		offset = write_pack_header(f, nr_remaining);
 
-		if (reuse_packfile) {
+		if (reuse_packfiles_nr) {
 			assert(pack_to_stdout);
-			write_reused_pack(f);
+			for (j = 0; j < reuse_packfiles_nr; j++) {
+				reused_chunks_nr = 0;
+				write_reused_pack(&reuse_packfiles[j], f);
+				if (reused_chunks_nr)
+					reuse_packfiles_used_nr++;
+			}
 			offset = hashfile_total(f);
 		}
 
@@ -3172,7 +3245,19 @@
 		return 0;
 	}
 	if (!strcmp(k, "pack.allowpackreuse")) {
-		allow_pack_reuse = git_config_bool(k, v);
+		int res = git_parse_maybe_bool_text(v);
+		if (res < 0) {
+			if (!strcasecmp(v, "single"))
+				allow_pack_reuse = SINGLE_PACK_REUSE;
+			else if (!strcasecmp(v, "multi"))
+				allow_pack_reuse = MULTI_PACK_REUSE;
+			else
+				die(_("invalid pack.allowPackReuse value: '%s'"), v);
+		} else if (res) {
+			allow_pack_reuse = SINGLE_PACK_REUSE;
+		} else {
+			allow_pack_reuse = NO_PACK_REUSE;
+		}
 		return 0;
 	}
 	if (!strcmp(k, "pack.threads")) {
@@ -3931,7 +4016,7 @@
  */
 static int pack_options_allow_reuse(void)
 {
-	return allow_pack_reuse &&
+	return allow_pack_reuse != NO_PACK_REUSE &&
 	       pack_to_stdout &&
 	       !ignore_packed_keep_on_disk &&
 	       !ignore_packed_keep_in_core &&
@@ -3944,13 +4029,18 @@
 	if (!(bitmap_git = prepare_bitmap_walk(revs, 0)))
 		return -1;
 
-	if (pack_options_allow_reuse() &&
-	    !reuse_partial_packfile_from_bitmap(
-			bitmap_git,
-			&reuse_packfile,
-			&reuse_packfile_objects,
-			&reuse_packfile_bitmap)) {
-		assert(reuse_packfile_objects);
+	if (pack_options_allow_reuse())
+		reuse_partial_packfile_from_bitmap(bitmap_git,
+						   &reuse_packfiles,
+						   &reuse_packfiles_nr,
+						   &reuse_packfile_bitmap,
+						   allow_pack_reuse == MULTI_PACK_REUSE);
+
+	if (reuse_packfiles) {
+		reuse_packfile_objects = bitmap_popcount(reuse_packfile_bitmap);
+		if (!reuse_packfile_objects)
+			BUG("expected non-empty reuse bitmap");
+
 		nr_result += reuse_packfile_objects;
 		nr_seen += reuse_packfile_objects;
 		display_progress(progress_state, nr_seen);
@@ -4306,6 +4396,8 @@
 		prepare_repo_settings(the_repository);
 		if (sparse < 0)
 			sparse = the_repository->settings.pack_use_sparse;
+		if (the_repository->settings.pack_use_multi_pack_reuse)
+			allow_pack_reuse = MULTI_PACK_REUSE;
 	}
 
 	reset_pack_idx_option(&pack_idx_opts);
@@ -4518,11 +4610,20 @@
 		fprintf_ln(stderr,
 			   _("Total %"PRIu32" (delta %"PRIu32"),"
 			     " reused %"PRIu32" (delta %"PRIu32"),"
-			     " pack-reused %"PRIu32),
+			     " pack-reused %"PRIu32" (from %"PRIuMAX")"),
 			   written, written_delta, reused, reused_delta,
-			   reuse_packfile_objects);
+			   reuse_packfile_objects,
+			   (uintmax_t)reuse_packfiles_used_nr);
+
+	trace2_data_intmax("pack-objects", the_repository, "written", written);
+	trace2_data_intmax("pack-objects", the_repository, "written/delta", written_delta);
+	trace2_data_intmax("pack-objects", the_repository, "reused", reused);
+	trace2_data_intmax("pack-objects", the_repository, "reused/delta", reused_delta);
+	trace2_data_intmax("pack-objects", the_repository, "pack-reused", reuse_packfile_objects);
+	trace2_data_intmax("pack-objects", the_repository, "packs-reused", reuse_packfiles_used_nr);
 
 cleanup:
+	clear_packing_data(&to_pack);
 	list_objects_filter_release(&filter_options);
 	strvec_clear(&rp);
 
diff --git a/builtin/rebase.c b/builtin/rebase.c
index 4084a6a..5b086f6 100644
--- a/builtin/rebase.c
+++ b/builtin/rebase.c
@@ -145,7 +145,6 @@
 		.reapply_cherry_picks = -1,             \
 		.allow_empty_message = 1,               \
 		.autosquash = -1,                       \
-		.config_autosquash = -1,                \
 		.rebase_merges = -1,                    \
 		.config_rebase_merges = -1,             \
 		.update_refs = -1,                      \
@@ -516,7 +515,7 @@
 	int ret = 0;
 
 	delete_ref(NULL, "REBASE_HEAD", NULL, REF_NO_DEREF);
-	unlink(git_path_auto_merge(the_repository));
+	delete_ref(NULL, "AUTO_MERGE", NULL, REF_NO_DEREF);
 	apply_autostash(state_dir_path("autostash", opts));
 	/*
 	 * We ignore errors in 'git maintenance run --auto', since the
@@ -702,10 +701,8 @@
 	if (opts->type == REBASE_MERGE) {
 		/* Run sequencer-based rebase */
 		setenv("GIT_CHERRY_PICK_HELP", resolvemsg, 1);
-		if (!(opts->flags & REBASE_INTERACTIVE_EXPLICIT)) {
+		if (!(opts->flags & REBASE_INTERACTIVE_EXPLICIT))
 			setenv("GIT_SEQUENCE_EDITOR", ":", 1);
-			opts->autosquash = 0;
-		}
 		if (opts->gpg_sign_opt) {
 			/* remove the leading "-S" */
 			char *tmp = xstrdup(opts->gpg_sign_opt + 2);
@@ -1396,7 +1393,6 @@
 	if ((options.flags & REBASE_INTERACTIVE_EXPLICIT) ||
 	    (options.action != ACTION_NONE) ||
 	    (options.exec.nr > 0) ||
-	    (options.autosquash == -1 && options.config_autosquash == 1) ||
 	    options.autosquash == 1) {
 		allow_preemptive_ff = 0;
 	}
@@ -1499,8 +1495,6 @@
 			if (is_merge(&options))
 				die(_("apply options and merge options "
 					  "cannot be used together"));
-			else if (options.autosquash == -1 && options.config_autosquash == 1)
-				die(_("apply options are incompatible with rebase.autoSquash.  Consider adding --no-autosquash"));
 			else if (options.rebase_merges == -1 && options.config_rebase_merges == 1)
 				die(_("apply options are incompatible with rebase.rebaseMerges.  Consider adding --no-rebase-merges"));
 			else if (options.update_refs == -1 && options.config_update_refs == 1)
@@ -1520,10 +1514,13 @@
 	options.rebase_merges = (options.rebase_merges >= 0) ? options.rebase_merges :
 				((options.config_rebase_merges >= 0) ? options.config_rebase_merges : 0);
 
-	if (options.autosquash == 1)
+	if (options.autosquash == 1) {
 		imply_merge(&options, "--autosquash");
-	options.autosquash = (options.autosquash >= 0) ? options.autosquash :
-			     ((options.config_autosquash >= 0) ? options.config_autosquash : 0);
+	} else if (options.autosquash == -1) {
+		options.autosquash =
+			options.config_autosquash &&
+			(options.flags & REBASE_INTERACTIVE_EXPLICIT);
+	}
 
 	if (options.type == REBASE_UNSPECIFIED) {
 		if (!strcmp(options.default_backend, "merge"))
diff --git a/builtin/receive-pack.c b/builtin/receive-pack.c
index e36b1d6..db65607 100644
--- a/builtin/receive-pack.c
+++ b/builtin/receive-pack.c
@@ -593,21 +593,6 @@
 	return strbuf_detach(&buf, NULL);
 }
 
-static char *find_header(const char *msg, size_t len, const char *key,
-			 const char **next_line)
-{
-	size_t out_len;
-	const char *val = find_header_mem(msg, len, key, &out_len);
-
-	if (!val)
-		return NULL;
-
-	if (next_line)
-		*next_line = val + out_len + 1;
-
-	return xmemdupz(val, out_len);
-}
-
 /*
  * Return zero if a and b are equal up to n bytes and nonzero if they are not.
  * This operation is guaranteed to run in constant time to avoid leaking data.
@@ -622,13 +607,14 @@
 	return res;
 }
 
-static const char *check_nonce(const char *buf, size_t len)
+static const char *check_nonce(const char *buf)
 {
-	char *nonce = find_header(buf, len, "nonce", NULL);
+	size_t noncelen;
+	const char *found = find_commit_header(buf, "nonce", &noncelen);
+	char *nonce = found ? xmemdupz(found, noncelen) : NULL;
 	timestamp_t stamp, ostamp;
 	char *bohmac, *expect = NULL;
 	const char *retval = NONCE_BAD;
-	size_t noncelen;
 
 	if (!nonce) {
 		retval = NONCE_MISSING;
@@ -670,7 +656,6 @@
 		goto leave;
 	}
 
-	noncelen = strlen(nonce);
 	expect = prepare_push_cert_nonce(service_dir, stamp);
 	if (noncelen != strlen(expect)) {
 		/* This is not even the right size. */
@@ -718,35 +703,28 @@
 static int check_cert_push_options(const struct string_list *push_options)
 {
 	const char *buf = push_cert.buf;
-	int len = push_cert.len;
 
-	char *option;
-	const char *next_line;
+	const char *option;
+	size_t optionlen;
 	int options_seen = 0;
 
 	int retval = 1;
 
-	if (!len)
+	if (!*buf)
 		return 1;
 
-	while ((option = find_header(buf, len, "push-option", &next_line))) {
-		len -= (next_line - buf);
-		buf = next_line;
+	while ((option = find_commit_header(buf, "push-option", &optionlen))) {
+		buf = option + optionlen + 1;
 		options_seen++;
 		if (options_seen > push_options->nr
-		    || strcmp(option,
-			      push_options->items[options_seen - 1].string)) {
-			retval = 0;
-			goto leave;
-		}
-		free(option);
+		    || xstrncmpz(push_options->items[options_seen - 1].string,
+				 option, optionlen))
+			return 0;
 	}
 
 	if (options_seen != push_options->nr)
 		retval = 0;
 
-leave:
-	free(option);
 	return retval;
 }
 
@@ -773,7 +751,7 @@
 		check_signature(&sigcheck, push_cert.buf + bogs,
 				push_cert.len - bogs);
 
-		nonce_status = check_nonce(push_cert.buf, bogs);
+		nonce_status = check_nonce(sigcheck.payload);
 	}
 	if (!is_null_oid(&push_cert_oid)) {
 		strvec_pushf(&proc->env, "GIT_PUSH_CERT=%s",
diff --git a/builtin/replay.c b/builtin/replay.c
new file mode 100644
index 0000000..6bc4b47
--- /dev/null
+++ b/builtin/replay.c
@@ -0,0 +1,446 @@
+/*
+ * "git replay" builtin command
+ */
+
+#define USE_THE_INDEX_VARIABLE
+#include "git-compat-util.h"
+
+#include "builtin.h"
+#include "environment.h"
+#include "hex.h"
+#include "lockfile.h"
+#include "merge-ort.h"
+#include "object-name.h"
+#include "parse-options.h"
+#include "refs.h"
+#include "revision.h"
+#include "strmap.h"
+#include <oidset.h>
+#include <tree.h>
+
+static const char *short_commit_name(struct commit *commit)
+{
+	return repo_find_unique_abbrev(the_repository, &commit->object.oid,
+				       DEFAULT_ABBREV);
+}
+
+static struct commit *peel_committish(const char *name)
+{
+	struct object *obj;
+	struct object_id oid;
+
+	if (repo_get_oid(the_repository, name, &oid))
+		return NULL;
+	obj = parse_object(the_repository, &oid);
+	return (struct commit *)repo_peel_to_type(the_repository, name, 0, obj,
+						  OBJ_COMMIT);
+}
+
+static char *get_author(const char *message)
+{
+	size_t len;
+	const char *a;
+
+	a = find_commit_header(message, "author", &len);
+	if (a)
+		return xmemdupz(a, len);
+
+	return NULL;
+}
+
+static struct commit *create_commit(struct tree *tree,
+				    struct commit *based_on,
+				    struct commit *parent)
+{
+	struct object_id ret;
+	struct object *obj;
+	struct commit_list *parents = NULL;
+	char *author;
+	char *sign_commit = NULL; /* FIXME: cli users might want to sign again */
+	struct commit_extra_header *extra;
+	struct strbuf msg = STRBUF_INIT;
+	const char *out_enc = get_commit_output_encoding();
+	const char *message = repo_logmsg_reencode(the_repository, based_on,
+						   NULL, out_enc);
+	const char *orig_message = NULL;
+	const char *exclude_gpgsig[] = { "gpgsig", NULL };
+
+	commit_list_insert(parent, &parents);
+	extra = read_commit_extra_headers(based_on, exclude_gpgsig);
+	find_commit_subject(message, &orig_message);
+	strbuf_addstr(&msg, orig_message);
+	author = get_author(message);
+	reset_ident_date();
+	if (commit_tree_extended(msg.buf, msg.len, &tree->object.oid, parents,
+				 &ret, author, NULL, sign_commit, extra)) {
+		error(_("failed to write commit object"));
+		return NULL;
+	}
+	free(author);
+	strbuf_release(&msg);
+
+	obj = parse_object(the_repository, &ret);
+	return (struct commit *)obj;
+}
+
+struct ref_info {
+	struct commit *onto;
+	struct strset positive_refs;
+	struct strset negative_refs;
+	int positive_refexprs;
+	int negative_refexprs;
+};
+
+static void get_ref_information(struct rev_cmdline_info *cmd_info,
+				struct ref_info *ref_info)
+{
+	int i;
+
+	ref_info->onto = NULL;
+	strset_init(&ref_info->positive_refs);
+	strset_init(&ref_info->negative_refs);
+	ref_info->positive_refexprs = 0;
+	ref_info->negative_refexprs = 0;
+
+	/*
+	 * When the user specifies e.g.
+	 *   git replay origin/main..mybranch
+	 *   git replay ^origin/next mybranch1 mybranch2
+	 * we want to be able to determine where to replay the commits.  In
+	 * these examples, the branches are probably based on an old version
+	 * of either origin/main or origin/next, so we want to replay on the
+	 * newest version of that branch.  In contrast we would want to error
+	 * out if they ran
+	 *   git replay ^origin/master ^origin/next mybranch
+	 *   git replay mybranch~2..mybranch
+	 * the first of those because there's no unique base to choose, and
+	 * the second because they'd likely just be replaying commits on top
+	 * of the same commit and not making any difference.
+	 */
+	for (i = 0; i < cmd_info->nr; i++) {
+		struct rev_cmdline_entry *e = cmd_info->rev + i;
+		struct object_id oid;
+		const char *refexpr = e->name;
+		char *fullname = NULL;
+		int can_uniquely_dwim = 1;
+
+		if (*refexpr == '^')
+			refexpr++;
+		if (repo_dwim_ref(the_repository, refexpr, strlen(refexpr), &oid, &fullname, 0) != 1)
+			can_uniquely_dwim = 0;
+
+		if (e->flags & BOTTOM) {
+			if (can_uniquely_dwim)
+				strset_add(&ref_info->negative_refs, fullname);
+			if (!ref_info->negative_refexprs)
+				ref_info->onto = lookup_commit_reference_gently(the_repository,
+										&e->item->oid, 1);
+			ref_info->negative_refexprs++;
+		} else {
+			if (can_uniquely_dwim)
+				strset_add(&ref_info->positive_refs, fullname);
+			ref_info->positive_refexprs++;
+		}
+
+		free(fullname);
+	}
+}
+
+static void determine_replay_mode(struct rev_cmdline_info *cmd_info,
+				  const char *onto_name,
+				  const char **advance_name,
+				  struct commit **onto,
+				  struct strset **update_refs)
+{
+	struct ref_info rinfo;
+
+	get_ref_information(cmd_info, &rinfo);
+	if (!rinfo.positive_refexprs)
+		die(_("need some commits to replay"));
+	if (onto_name && *advance_name)
+		die(_("--onto and --advance are incompatible"));
+	else if (onto_name) {
+		*onto = peel_committish(onto_name);
+		if (rinfo.positive_refexprs <
+		    strset_get_size(&rinfo.positive_refs))
+			die(_("all positive revisions given must be references"));
+	} else if (*advance_name) {
+		struct object_id oid;
+		char *fullname = NULL;
+
+		*onto = peel_committish(*advance_name);
+		if (repo_dwim_ref(the_repository, *advance_name, strlen(*advance_name),
+			     &oid, &fullname, 0) == 1) {
+			*advance_name = fullname;
+		} else {
+			die(_("argument to --advance must be a reference"));
+		}
+		if (rinfo.positive_refexprs > 1)
+			die(_("cannot advance target with multiple sources because ordering would be ill-defined"));
+	} else {
+		int positive_refs_complete = (
+			rinfo.positive_refexprs ==
+			strset_get_size(&rinfo.positive_refs));
+		int negative_refs_complete = (
+			rinfo.negative_refexprs ==
+			strset_get_size(&rinfo.negative_refs));
+		/*
+		 * We need either positive_refs_complete or
+		 * negative_refs_complete, but not both.
+		 */
+		if (rinfo.negative_refexprs > 0 &&
+		    positive_refs_complete == negative_refs_complete)
+			die(_("cannot implicitly determine whether this is an --advance or --onto operation"));
+		if (negative_refs_complete) {
+			struct hashmap_iter iter;
+			struct strmap_entry *entry;
+
+			if (rinfo.negative_refexprs == 0)
+				die(_("all positive revisions given must be references"));
+			else if (rinfo.negative_refexprs > 1)
+				die(_("cannot implicitly determine whether this is an --advance or --onto operation"));
+			else if (rinfo.positive_refexprs > 1)
+				die(_("cannot advance target with multiple source branches because ordering would be ill-defined"));
+
+			/* Only one entry, but we have to loop to get it */
+			strset_for_each_entry(&rinfo.negative_refs,
+					      &iter, entry) {
+				*advance_name = entry->key;
+			}
+		} else { /* positive_refs_complete */
+			if (rinfo.negative_refexprs > 1)
+				die(_("cannot implicitly determine correct base for --onto"));
+			if (rinfo.negative_refexprs == 1)
+				*onto = rinfo.onto;
+		}
+	}
+	if (!*advance_name) {
+		*update_refs = xcalloc(1, sizeof(**update_refs));
+		**update_refs = rinfo.positive_refs;
+		memset(&rinfo.positive_refs, 0, sizeof(**update_refs));
+	}
+	strset_clear(&rinfo.negative_refs);
+	strset_clear(&rinfo.positive_refs);
+}
+
+static struct commit *mapped_commit(kh_oid_map_t *replayed_commits,
+				    struct commit *commit,
+				    struct commit *fallback)
+{
+	khint_t pos = kh_get_oid_map(replayed_commits, commit->object.oid);
+	if (pos == kh_end(replayed_commits))
+		return fallback;
+	return kh_value(replayed_commits, pos);
+}
+
+static struct commit *pick_regular_commit(struct commit *pickme,
+					  kh_oid_map_t *replayed_commits,
+					  struct commit *onto,
+					  struct merge_options *merge_opt,
+					  struct merge_result *result)
+{
+	struct commit *base, *replayed_base;
+	struct tree *pickme_tree, *base_tree;
+
+	base = pickme->parents->item;
+	replayed_base = mapped_commit(replayed_commits, base, onto);
+
+	result->tree = repo_get_commit_tree(the_repository, replayed_base);
+	pickme_tree = repo_get_commit_tree(the_repository, pickme);
+	base_tree = repo_get_commit_tree(the_repository, base);
+
+	merge_opt->branch1 = short_commit_name(replayed_base);
+	merge_opt->branch2 = short_commit_name(pickme);
+	merge_opt->ancestor = xstrfmt("parent of %s", merge_opt->branch2);
+
+	merge_incore_nonrecursive(merge_opt,
+				  base_tree,
+				  result->tree,
+				  pickme_tree,
+				  result);
+
+	free((char*)merge_opt->ancestor);
+	merge_opt->ancestor = NULL;
+	if (!result->clean)
+		return NULL;
+	return create_commit(result->tree, pickme, replayed_base);
+}
+
+int cmd_replay(int argc, const char **argv, const char *prefix)
+{
+	const char *advance_name = NULL;
+	struct commit *onto = NULL;
+	const char *onto_name = NULL;
+	int contained = 0;
+
+	struct rev_info revs;
+	struct commit *last_commit = NULL;
+	struct commit *commit;
+	struct merge_options merge_opt;
+	struct merge_result result;
+	struct strset *update_refs = NULL;
+	kh_oid_map_t *replayed_commits;
+	int ret = 0;
+
+	const char * const replay_usage[] = {
+		N_("(EXPERIMENTAL!) git replay "
+		   "([--contained] --onto <newbase> | --advance <branch>) "
+		   "<revision-range>..."),
+		NULL
+	};
+	struct option replay_options[] = {
+		OPT_STRING(0, "advance", &advance_name,
+			   N_("branch"),
+			   N_("make replay advance given branch")),
+		OPT_STRING(0, "onto", &onto_name,
+			   N_("revision"),
+			   N_("replay onto given commit")),
+		OPT_BOOL(0, "contained", &contained,
+			 N_("advance all branches contained in revision-range")),
+		OPT_END()
+	};
+
+	argc = parse_options(argc, argv, prefix, replay_options, replay_usage,
+			     PARSE_OPT_KEEP_ARGV0 | PARSE_OPT_KEEP_UNKNOWN_OPT);
+
+	if (!onto_name && !advance_name) {
+		error(_("option --onto or --advance is mandatory"));
+		usage_with_options(replay_usage, replay_options);
+	}
+
+	if (advance_name && contained)
+		die(_("options '%s' and '%s' cannot be used together"),
+		    "--advance", "--contained");
+
+	repo_init_revisions(the_repository, &revs, prefix);
+
+	/*
+	 * Set desired values for rev walking options here. If they
+	 * are changed by some user specified option in setup_revisions()
+	 * below, we will detect that below and then warn.
+	 *
+	 * TODO: In the future we might want to either die(), or allow
+	 * some options changing these values if we think they could
+	 * be useful.
+	 */
+	revs.reverse = 1;
+	revs.sort_order = REV_SORT_IN_GRAPH_ORDER;
+	revs.topo_order = 1;
+	revs.simplify_history = 0;
+
+	argc = setup_revisions(argc, argv, &revs, NULL);
+	if (argc > 1) {
+		ret = error(_("unrecognized argument: %s"), argv[1]);
+		goto cleanup;
+	}
+
+	/*
+	 * Detect and warn if we override some user specified rev
+	 * walking options.
+	 */
+	if (revs.reverse != 1) {
+		warning(_("some rev walking options will be overridden as "
+			  "'%s' bit in 'struct rev_info' will be forced"),
+			"reverse");
+		revs.reverse = 1;
+	}
+	if (revs.sort_order != REV_SORT_IN_GRAPH_ORDER) {
+		warning(_("some rev walking options will be overridden as "
+			  "'%s' bit in 'struct rev_info' will be forced"),
+			"sort_order");
+		revs.sort_order = REV_SORT_IN_GRAPH_ORDER;
+	}
+	if (revs.topo_order != 1) {
+		warning(_("some rev walking options will be overridden as "
+			  "'%s' bit in 'struct rev_info' will be forced"),
+			"topo_order");
+		revs.topo_order = 1;
+	}
+	if (revs.simplify_history != 0) {
+		warning(_("some rev walking options will be overridden as "
+			  "'%s' bit in 'struct rev_info' will be forced"),
+			"simplify_history");
+		revs.simplify_history = 0;
+	}
+
+	determine_replay_mode(&revs.cmdline, onto_name, &advance_name,
+			      &onto, &update_refs);
+
+	if (!onto) /* FIXME: Should handle replaying down to root commit */
+		die("Replaying down to root commit is not supported yet!");
+
+	if (prepare_revision_walk(&revs) < 0) {
+		ret = error(_("error preparing revisions"));
+		goto cleanup;
+	}
+
+	init_merge_options(&merge_opt, the_repository);
+	memset(&result, 0, sizeof(result));
+	merge_opt.show_rename_progress = 0;
+	last_commit = onto;
+	replayed_commits = kh_init_oid_map();
+	while ((commit = get_revision(&revs))) {
+		const struct name_decoration *decoration;
+		khint_t pos;
+		int hr;
+
+		if (!commit->parents)
+			die(_("replaying down to root commit is not supported yet!"));
+		if (commit->parents->next)
+			die(_("replaying merge commits is not supported yet!"));
+
+		last_commit = pick_regular_commit(commit, replayed_commits, onto,
+						  &merge_opt, &result);
+		if (!last_commit)
+			break;
+
+		/* Record commit -> last_commit mapping */
+		pos = kh_put_oid_map(replayed_commits, commit->object.oid, &hr);
+		if (hr == 0)
+			BUG("Duplicate rewritten commit: %s\n",
+			    oid_to_hex(&commit->object.oid));
+		kh_value(replayed_commits, pos) = last_commit;
+
+		/* Update any necessary branches */
+		if (advance_name)
+			continue;
+		decoration = get_name_decoration(&commit->object);
+		if (!decoration)
+			continue;
+		while (decoration) {
+			if (decoration->type == DECORATION_REF_LOCAL &&
+			    (contained || strset_contains(update_refs,
+							  decoration->name))) {
+				printf("update %s %s %s\n",
+				       decoration->name,
+				       oid_to_hex(&last_commit->object.oid),
+				       oid_to_hex(&commit->object.oid));
+			}
+			decoration = decoration->next;
+		}
+	}
+
+	/* In --advance mode, advance the target ref */
+	if (result.clean == 1 && advance_name) {
+		printf("update %s %s %s\n",
+		       advance_name,
+		       oid_to_hex(&last_commit->object.oid),
+		       oid_to_hex(&onto->object.oid));
+	}
+
+	merge_finalize(&merge_opt, &result);
+	kh_destroy_oid_map(replayed_commits);
+	if (update_refs) {
+		strset_clear(update_refs);
+		free(update_refs);
+	}
+	ret = result.clean;
+
+cleanup:
+	release_revisions(&revs);
+
+	/* Return */
+	if (ret < 0)
+		exit(128);
+	return ret ? 0 : 1;
+}
diff --git a/builtin/rev-parse.c b/builtin/rev-parse.c
index 917f122..d089876 100644
--- a/builtin/rev-parse.c
+++ b/builtin/rev-parse.c
@@ -1062,6 +1062,10 @@
 				puts(the_hash_algo->name);
 				continue;
 			}
+			if (!strcmp(arg, "--show-ref-format")) {
+				puts(ref_storage_format_to_name(the_repository->ref_storage_format));
+				continue;
+			}
 			if (!strcmp(arg, "--end-of-options")) {
 				seen_end_of_options = 1;
 				if (filter & (DO_FLAGS | DO_REVS))
diff --git a/builtin/send-pack.c b/builtin/send-pack.c
index b7183be..3df9eaa 100644
--- a/builtin/send-pack.c
+++ b/builtin/send-pack.c
@@ -333,6 +333,7 @@
 	}
 
 	if (!ret && !transport_refs_pushed(remote_refs))
+		/* stable plumbing output; do not modify or localize */
 		fprintf(stderr, "Everything up-to-date\n");
 
 	return ret;
diff --git a/builtin/show-ref.c b/builtin/show-ref.c
index 79955c2..1c15421 100644
--- a/builtin/show-ref.c
+++ b/builtin/show-ref.c
@@ -172,7 +172,7 @@
 	while (*refs) {
 		struct object_id oid;
 
-		if ((starts_with(*refs, "refs/") || !strcmp(*refs, "HEAD")) &&
+		if ((starts_with(*refs, "refs/") || refname_is_safe(*refs)) &&
 		    !read_ref(*refs, &oid)) {
 			show_one(show_one_opts, *refs, &oid);
 		}
diff --git a/builtin/sparse-checkout.c b/builtin/sparse-checkout.c
index 288a832..0f52e25 100644
--- a/builtin/sparse-checkout.c
+++ b/builtin/sparse-checkout.c
@@ -773,8 +773,7 @@
 
 	argc = parse_options(argc, argv, prefix,
 			     builtin_sparse_checkout_add_options,
-			     builtin_sparse_checkout_add_usage,
-			     PARSE_OPT_KEEP_UNKNOWN_OPT);
+			     builtin_sparse_checkout_add_usage, 0);
 
 	sanitize_paths(argc, argv, prefix, add_opts.skip_checks);
 
@@ -820,8 +819,7 @@
 
 	argc = parse_options(argc, argv, prefix,
 			     builtin_sparse_checkout_set_options,
-			     builtin_sparse_checkout_set_usage,
-			     PARSE_OPT_KEEP_UNKNOWN_OPT);
+			     builtin_sparse_checkout_set_usage, 0);
 
 	if (update_modes(&set_opts.cone_mode, &set_opts.sparse_index))
 		return 1;
@@ -992,8 +990,7 @@
 
 	argc = parse_options(argc, argv, prefix,
 			     builtin_sparse_checkout_check_rules_options,
-			     builtin_sparse_checkout_check_rules_usage,
-			     PARSE_OPT_KEEP_UNKNOWN_OPT);
+			     builtin_sparse_checkout_check_rules_usage, 0);
 
 	if (check_rules_opts.rules_file && check_rules_opts.cone_mode < 0)
 		check_rules_opts.cone_mode = 1;
diff --git a/builtin/tag.c b/builtin/tag.c
index 79ca53c..37473ac 100644
--- a/builtin/tag.c
+++ b/builtin/tag.c
@@ -43,18 +43,11 @@
 static unsigned int colopts;
 static int force_sign_annotate;
 static int config_sign_tag = -1; /* unspecified */
-static int omit_empty = 0;
 
 static int list_tags(struct ref_filter *filter, struct ref_sorting *sorting,
 		     struct ref_format *format)
 {
-	struct ref_array array;
-	struct strbuf output = STRBUF_INIT;
-	struct strbuf err = STRBUF_INIT;
 	char *to_free = NULL;
-	int i;
-
-	memset(&array, 0, sizeof(array));
 
 	if (filter->lines == -1)
 		filter->lines = 0;
@@ -72,23 +65,8 @@
 	if (verify_ref_format(format))
 		die(_("unable to parse format string"));
 	filter->with_commit_tag_algo = 1;
-	filter_refs(&array, filter, FILTER_REFS_TAGS);
-	filter_ahead_behind(the_repository, format, &array);
-	ref_array_sort(sorting, &array);
+	filter_and_format_refs(filter, FILTER_REFS_TAGS, sorting, format);
 
-	for (i = 0; i < array.nr; i++) {
-		strbuf_reset(&output);
-		strbuf_reset(&err);
-		if (format_ref_array_item(array.items[i], format, &output, &err))
-			die("%s", err.buf);
-		fwrite(output.buf, 1, output.len, stdout);
-		if (output.len || !omit_empty)
-			putchar('\n');
-	}
-
-	strbuf_release(&err);
-	strbuf_release(&output);
-	ref_array_clear(&array);
 	free(to_free);
 
 	return 0;
@@ -480,7 +458,7 @@
 		OPT_WITHOUT(&filter.no_commit, N_("print only tags that don't contain the commit")),
 		OPT_MERGED(&filter, N_("print only tags that are merged")),
 		OPT_NO_MERGED(&filter, N_("print only tags that are not merged")),
-		OPT_BOOL(0, "omit-empty",  &omit_empty,
+		OPT_BOOL(0, "omit-empty",  &format.array_opts.omit_empty,
 			N_("do not output a newline after empty formatted refs")),
 		OPT_REF_SORT(&sorting_options),
 		{
@@ -500,7 +478,13 @@
 
 	setup_ref_filter_porcelain_msg();
 
+	/*
+	 * Try to set sort keys from config. If config does not set any,
+	 * fall back on default (refname) sorting.
+	 */
 	git_config(git_tag_config, &sorting_options);
+	if (!sorting_options.nr)
+		string_list_append(&sorting_options, "refname");
 
 	memset(&opt, 0, sizeof(opt));
 	filter.lines = -1;
diff --git a/builtin/var.c b/builtin/var.c
index 8cf7dd9..cf55672 100644
--- a/builtin/var.c
+++ b/builtin/var.c
@@ -90,7 +90,7 @@
 	char *user, *xdg;
 	size_t unused;
 
-	git_global_config(&user, &xdg);
+	git_global_config_paths(&user, &xdg);
 	if (xdg && *xdg) {
 		normalize_path_copy(xdg, xdg);
 		strbuf_addf(&buf, "%s\n", xdg);
diff --git a/builtin/worktree.c b/builtin/worktree.c
index e1033c2..9c76b62 100644
--- a/builtin/worktree.c
+++ b/builtin/worktree.c
@@ -416,7 +416,6 @@
 	struct strbuf sb_git = STRBUF_INIT, sb_repo = STRBUF_INIT;
 	struct strbuf sb = STRBUF_INIT, realpath = STRBUF_INIT;
 	const char *name;
-	struct child_process cp = CHILD_PROCESS_INIT;
 	struct strvec child_env = STRVEC_INIT;
 	unsigned int counter = 0;
 	int len, ret;
@@ -424,7 +423,8 @@
 	struct commit *commit = NULL;
 	int is_branch = 0;
 	struct strbuf sb_name = STRBUF_INIT;
-	struct worktree **worktrees;
+	struct worktree **worktrees, *wt = NULL;
+	struct ref_store *wt_refs;
 
 	worktrees = get_worktrees();
 	check_candidate_path(path, opts->force, worktrees, "add");
@@ -495,21 +495,33 @@
 	strbuf_realpath(&realpath, get_git_common_dir(), 1);
 	write_file(sb_git.buf, "gitdir: %s/worktrees/%s",
 		   realpath.buf, name);
-	/*
-	 * This is to keep resolve_ref() happy. We need a valid HEAD
-	 * or is_git_directory() will reject the directory. Any value which
-	 * looks like an object ID will do since it will be immediately
-	 * replaced by the symbolic-ref or update-ref invocation in the new
-	 * worktree.
-	 */
-	strbuf_reset(&sb);
-	strbuf_addf(&sb, "%s/HEAD", sb_repo.buf);
-	write_file(sb.buf, "%s", oid_to_hex(null_oid()));
 	strbuf_reset(&sb);
 	strbuf_addf(&sb, "%s/commondir", sb_repo.buf);
 	write_file(sb.buf, "../..");
 
 	/*
+	 * Set up the ref store of the worktree and create the HEAD reference.
+	 */
+	wt = get_linked_worktree(name, 1);
+	if (!wt) {
+		ret = error(_("could not find created worktree '%s'"), name);
+		goto done;
+	}
+	wt_refs = get_worktree_ref_store(wt);
+
+	ret = refs_init_db(wt_refs, REFS_INIT_DB_IS_WORKTREE, &sb);
+	if (ret)
+		goto done;
+
+	if (!is_branch && commit)
+		ret = refs_update_ref(wt_refs, NULL, "HEAD", &commit->object.oid,
+				      NULL, 0, UPDATE_REFS_MSG_ON_ERR);
+	else
+		ret = refs_create_symref(wt_refs, "HEAD", symref.buf, NULL);
+	if (ret)
+		goto done;
+
+	/*
 	 * If the current worktree has sparse-checkout enabled, then copy
 	 * the sparse-checkout patterns from the current worktree.
 	 */
@@ -526,22 +538,6 @@
 
 	strvec_pushf(&child_env, "%s=%s", GIT_DIR_ENVIRONMENT, sb_git.buf);
 	strvec_pushf(&child_env, "%s=%s", GIT_WORK_TREE_ENVIRONMENT, path);
-	cp.git_cmd = 1;
-
-	if (!is_branch && commit) {
-		strvec_pushl(&cp.args, "update-ref", "HEAD",
-			     oid_to_hex(&commit->object.oid), NULL);
-	} else {
-		strvec_pushl(&cp.args, "symbolic-ref", "HEAD",
-			     symref.buf, NULL);
-		if (opts->quiet)
-			strvec_push(&cp.args, "--quiet");
-	}
-
-	strvec_pushv(&cp.env, child_env.v);
-	ret = run_command(&cp);
-	if (ret)
-		goto done;
 
 	if (opts->orphan &&
 	    (ret = make_worktree_orphan(refname, opts, &child_env)))
@@ -587,6 +583,7 @@
 	strbuf_release(&sb_git);
 	strbuf_release(&sb_name);
 	strbuf_release(&realpath);
+	free_worktree(wt);
 	return ret;
 }
 
diff --git a/ci/install-dependencies.sh b/ci/install-dependencies.sh
index 4f40753..b4e22de 100755
--- a/ci/install-dependencies.sh
+++ b/ci/install-dependencies.sh
@@ -37,15 +37,13 @@
 	test -z "$BREW_INSTALL_PACKAGES" ||
 	brew install $BREW_INSTALL_PACKAGES
 	brew link --force gettext
-	mkdir -p $HOME/bin
-	(
-		cd $HOME/bin
+
+	mkdir -p "$P4_PATH"
+	pushd "$P4_PATH"
 		wget -q "$P4WHENCE/bin.macosx1015x86_64/helix-core-server.tgz" &&
 		tar -xf helix-core-server.tgz &&
 		sudo xattr -d com.apple.quarantine p4 p4d 2>/dev/null || true
-	)
-	PATH="$PATH:${HOME}/bin"
-	export PATH
+	popd
 
 	if test -n "$CC_PACKAGE"
 	then
diff --git a/ci/install-docker-dependencies.sh b/ci/install-docker-dependencies.sh
index 48c43f0..eb2c9e1 100755
--- a/ci/install-docker-dependencies.sh
+++ b/ci/install-docker-dependencies.sh
@@ -21,7 +21,7 @@
 		apache2 apache2-http2 apache2-proxy apache2-ssl apache2-webdav apr-util-dbd_sqlite3 \
 		bash cvs gnupg perl-cgi perl-dbd-sqlite >/dev/null
 	;;
-linux-*)
+linux-*|StaticAnalysis)
 	# Required so that apt doesn't wait for user input on certain packages.
 	export DEBIAN_FRONTEND=noninteractive
 
@@ -31,6 +31,11 @@
 		perl-modules liberror-perl libauthen-sasl-perl libemail-valid-perl \
 		libdbd-sqlite3-perl libio-socket-ssl-perl libnet-smtp-ssl-perl ${CC_PACKAGE:-${CC:-gcc}} \
 		apache2 cvs cvsps gnupg libcgi-pm-perl subversion
+
+	if test "$jobname" = StaticAnalysis
+	then
+		apt install -q -y coccinelle
+	fi
 	;;
 pedantic)
 	dnf -yq update >/dev/null &&
diff --git a/ci/lib.sh b/ci/lib.sh
index c749b21..d5dd2f2 100755
--- a/ci/lib.sh
+++ b/ci/lib.sh
@@ -252,7 +252,14 @@
 	CI_COMMIT="$CI_COMMIT_SHA"
 	case "$CI_JOB_IMAGE" in
 	macos-*)
-		CI_OS_NAME=osx;;
+		# GitLab CI has Python installed via multiple package managers,
+		# most notably via asdf and Homebrew. Ensure that our builds
+		# pick up the Homebrew one by prepending it to our PATH as the
+		# asdf one breaks tests.
+		export PATH="$(brew --prefix)/bin:$PATH"
+
+		CI_OS_NAME=osx
+		;;
 	alpine:*|fedora:*|ubuntu:*)
 		CI_OS_NAME=linux;;
 	*)
@@ -344,6 +351,9 @@
 	then
 		MAKEFLAGS="$MAKEFLAGS APPLE_COMMON_CRYPTO_SHA1=Yes"
 	fi
+
+	P4_PATH="$HOME/custom/p4"
+	export PATH="$P4_PATH:$PATH"
 	;;
 esac
 
diff --git a/ci/print-test-failures.sh b/ci/print-test-failures.sh
index c33ad4e..b1f80ae 100755
--- a/ci/print-test-failures.sh
+++ b/ci/print-test-failures.sh
@@ -8,7 +8,7 @@
 # Tracing executed commands would produce too much noise in the loop below.
 set +x
 
-cd t/
+cd "${TEST_OUTPUT_DIRECTORY:-t/}"
 
 if ! ls test-results/*.exit >/dev/null 2>/dev/null
 then
diff --git a/ci/run-build-and-minimal-fuzzers.sh b/ci/run-build-and-minimal-fuzzers.sh
new file mode 100755
index 0000000..8ba486f
--- /dev/null
+++ b/ci/run-build-and-minimal-fuzzers.sh
@@ -0,0 +1,19 @@
+#!/bin/sh
+#
+# Build and test Git's fuzzers
+#
+
+. ${0%/*}/lib.sh
+
+group "Build fuzzers" make \
+	CC=clang \
+	CXX=clang++ \
+	CFLAGS="-fsanitize=fuzzer-no-link,address" \
+	LIB_FUZZING_ENGINE="-fsanitize=fuzzer,address" \
+	fuzz-all
+
+for fuzzer in commit-graph date pack-headers pack-idx ; do
+	begin_group "fuzz-$fuzzer"
+	./oss-fuzz/fuzz-$fuzzer -verbosity=0 -runs=1 || exit 1
+	end_group "fuzz-$fuzzer"
+done
diff --git a/ci/run-build-and-tests.sh b/ci/run-build-and-tests.sh
index 2528f25..7a1466b 100755
--- a/ci/run-build-and-tests.sh
+++ b/ci/run-build-and-tests.sh
@@ -50,6 +50,8 @@
 then
 	group "Run tests" make test ||
 	handle_failed_tests
+	group "Run unit tests" \
+		make DEFAULT_UNIT_TEST_TARGET=unit-tests-prove unit-tests
 fi
 check_unignored_build_artifacts
 
diff --git a/ci/run-test-slice.sh b/ci/run-test-slice.sh
index a3c6795..ae80943 100755
--- a/ci/run-test-slice.sh
+++ b/ci/run-test-slice.sh
@@ -15,4 +15,9 @@
 	tr '\n' ' ')" ||
 handle_failed_tests
 
+# We only have one unit test at the moment, so run it in the first slice
+if [ "$1" == "0" ] ; then
+	group "Run unit tests" make --quiet -C t unit-tests-prove
+fi
+
 check_unignored_build_artifacts
diff --git a/combine-diff.c b/combine-diff.c
index db94581..d6d6fa1 100644
--- a/combine-diff.c
+++ b/combine-diff.c
@@ -337,6 +337,8 @@
 		free_filespec(df);
 	} else {
 		blob = repo_read_object_file(r, oid, &type, size);
+		if (!blob)
+			die(_("unable to read %s"), oid_to_hex(oid));
 		if (type != OBJ_BLOB)
 			die("object '%s' is not a blob!", oid_to_hex(oid));
 	}
diff --git a/command-list.txt b/command-list.txt
index 54b2a50..c4cd0f3 100644
--- a/command-list.txt
+++ b/command-list.txt
@@ -160,6 +160,7 @@
 git-remote                              ancillarymanipulators           complete
 git-repack                              ancillarymanipulators           complete
 git-replace                             ancillarymanipulators           complete
+git-replay                              plumbingmanipulators
 git-request-pull                        foreignscminterface             complete
 git-rerere                              ancillaryinterrogators
 git-reset                               mainporcelain           history
diff --git a/commit-graph.c b/commit-graph.c
index 37bd10e..45417d7 100644
--- a/commit-graph.c
+++ b/commit-graph.c
@@ -274,68 +274,37 @@
 	return ret;
 }
 
-static int verify_commit_graph_lite(struct commit_graph *g)
+static int graph_read_oid_fanout(const unsigned char *chunk_start,
+				 size_t chunk_size, void *data)
 {
+	struct commit_graph *g = data;
 	int i;
 
-	/*
-	 * Basic validation shared between parse_commit_graph()
-	 * which'll be called every time the graph is used, and the
-	 * much more expensive verify_commit_graph() used by
-	 * "commit-graph verify".
-	 *
-	 * There should only be very basic checks here to ensure that
-	 * we don't e.g. segfault in fill_commit_in_graph(), but
-	 * because this is a very hot codepath nothing that e.g. loops
-	 * over g->num_commits, or runs a checksum on the commit-graph
-	 * itself.
-	 */
-	if (!g->chunk_oid_fanout) {
-		error("commit-graph is missing the OID Fanout chunk");
-		return 1;
-	}
-	if (!g->chunk_oid_lookup) {
-		error("commit-graph is missing the OID Lookup chunk");
-		return 1;
-	}
-	if (!g->chunk_commit_data) {
-		error("commit-graph is missing the Commit Data chunk");
-		return 1;
-	}
+	if (chunk_size != 256 * sizeof(uint32_t))
+		return error(_("commit-graph oid fanout chunk is wrong size"));
+	g->chunk_oid_fanout = (const uint32_t *)chunk_start;
+	g->num_commits = ntohl(g->chunk_oid_fanout[255]);
 
 	for (i = 0; i < 255; i++) {
 		uint32_t oid_fanout1 = ntohl(g->chunk_oid_fanout[i]);
 		uint32_t oid_fanout2 = ntohl(g->chunk_oid_fanout[i + 1]);
 
 		if (oid_fanout1 > oid_fanout2) {
-			error("commit-graph fanout values out of order");
+			error(_("commit-graph fanout values out of order"));
 			return 1;
 		}
 	}
-	if (ntohl(g->chunk_oid_fanout[255]) != g->num_commits) {
-		error("commit-graph oid table and fanout disagree on size");
-		return 1;
-	}
 
 	return 0;
 }
 
-static int graph_read_oid_fanout(const unsigned char *chunk_start,
-				 size_t chunk_size, void *data)
-{
-	struct commit_graph *g = data;
-	if (chunk_size != 256 * sizeof(uint32_t))
-		return error("commit-graph oid fanout chunk is wrong size");
-	g->chunk_oid_fanout = (const uint32_t *)chunk_start;
-	return 0;
-}
-
 static int graph_read_oid_lookup(const unsigned char *chunk_start,
 				 size_t chunk_size, void *data)
 {
 	struct commit_graph *g = data;
 	g->chunk_oid_lookup = chunk_start;
-	g->num_commits = chunk_size / g->hash_len;
+	if (chunk_size / g->hash_len != g->num_commits)
+		return error(_("commit-graph OID lookup chunk is the wrong size"));
 	return 0;
 }
 
@@ -343,8 +312,8 @@
 				  size_t chunk_size, void *data)
 {
 	struct commit_graph *g = data;
-	if (chunk_size != g->num_commits * GRAPH_DATA_WIDTH)
-		return error("commit-graph commit data chunk is wrong size");
+	if (chunk_size / GRAPH_DATA_WIDTH != g->num_commits)
+		return error(_("commit-graph commit data chunk is wrong size"));
 	g->chunk_commit_data = chunk_start;
 	return 0;
 }
@@ -353,8 +322,8 @@
 				      size_t chunk_size, void *data)
 {
 	struct commit_graph *g = data;
-	if (chunk_size != g->num_commits * sizeof(uint32_t))
-		return error("commit-graph generations chunk is wrong size");
+	if (chunk_size / sizeof(uint32_t) != g->num_commits)
+		return error(_("commit-graph generations chunk is wrong size"));
 	g->chunk_generation_data = chunk_start;
 	return 0;
 }
@@ -363,8 +332,8 @@
 				  size_t chunk_size, void *data)
 {
 	struct commit_graph *g = data;
-	if (chunk_size != g->num_commits * 4) {
-		warning("commit-graph changed-path index chunk is too small");
+	if (chunk_size / 4 != g->num_commits) {
+		warning(_("commit-graph changed-path index chunk is too small"));
 		return -1;
 	}
 	g->chunk_bloom_indexes = chunk_start;
@@ -378,8 +347,8 @@
 	uint32_t hash_version;
 
 	if (chunk_size < BLOOMDATA_CHUNK_HEADER_SIZE) {
-		warning("ignoring too-small changed-path chunk"
-			" (%"PRIuMAX" < %"PRIuMAX") in commit-graph file",
+		warning(_("ignoring too-small changed-path chunk"
+			" (%"PRIuMAX" < %"PRIuMAX") in commit-graph file"),
 			(uintmax_t)chunk_size,
 			(uintmax_t)BLOOMDATA_CHUNK_HEADER_SIZE);
 		return -1;
@@ -461,9 +430,19 @@
 				   GRAPH_HEADER_SIZE, graph->num_chunks, 1))
 		goto free_and_return;
 
-	read_chunk(cf, GRAPH_CHUNKID_OIDFANOUT, graph_read_oid_fanout, graph);
-	read_chunk(cf, GRAPH_CHUNKID_OIDLOOKUP, graph_read_oid_lookup, graph);
-	read_chunk(cf, GRAPH_CHUNKID_DATA, graph_read_commit_data, graph);
+	if (read_chunk(cf, GRAPH_CHUNKID_OIDFANOUT, graph_read_oid_fanout, graph)) {
+		error(_("commit-graph required OID fanout chunk missing or corrupted"));
+		goto free_and_return;
+	}
+	if (read_chunk(cf, GRAPH_CHUNKID_OIDLOOKUP, graph_read_oid_lookup, graph)) {
+		error(_("commit-graph required OID lookup chunk missing or corrupted"));
+		goto free_and_return;
+	}
+	if (read_chunk(cf, GRAPH_CHUNKID_DATA, graph_read_commit_data, graph)) {
+		error(_("commit-graph required commit data chunk missing or corrupted"));
+		goto free_and_return;
+	}
+
 	pair_chunk(cf, GRAPH_CHUNKID_EXTRAEDGES, &graph->chunk_extra_edges,
 		   &graph->chunk_extra_edges_size);
 	pair_chunk(cf, GRAPH_CHUNKID_BASE, &graph->chunk_base_graphs,
@@ -498,9 +477,6 @@
 
 	oidread(&graph->oid, graph->data + graph->data_len - graph->hash_len);
 
-	if (verify_commit_graph_lite(graph))
-		goto free_and_return;
-
 	free_chunkfile(cf);
 	return graph;
 
@@ -628,7 +604,7 @@
 			/* treat empty files the same as missing */
 			errno = ENOENT;
 		} else {
-			warning("commit-graph chain file too small");
+			warning(_("commit-graph chain file too small"));
 			errno = EINVAL;
 		}
 		return 0;
@@ -972,7 +948,7 @@
 	parent_data_pos = edge_value & GRAPH_EDGE_LAST_MASK;
 	do {
 		if (g->chunk_extra_edges_size / sizeof(uint32_t) <= parent_data_pos) {
-			error("commit-graph extra-edges pointer out of bounds");
+			error(_("commit-graph extra-edges pointer out of bounds"));
 			free_commit_list(item->parents);
 			item->parents = NULL;
 			item->object.parsed = 0;
@@ -2643,19 +2619,16 @@
 	oid_array_clear(&ctx->oids);
 	clear_topo_level_slab(&topo_levels);
 
-	if (ctx->commit_graph_filenames_after) {
-		for (i = 0; i < ctx->num_commit_graphs_after; i++) {
-			free(ctx->commit_graph_filenames_after[i]);
-			free(ctx->commit_graph_hash_after[i]);
-		}
+	for (i = 0; i < ctx->num_commit_graphs_before; i++)
+		free(ctx->commit_graph_filenames_before[i]);
+	free(ctx->commit_graph_filenames_before);
 
-		for (i = 0; i < ctx->num_commit_graphs_before; i++)
-			free(ctx->commit_graph_filenames_before[i]);
-
-		free(ctx->commit_graph_filenames_after);
-		free(ctx->commit_graph_filenames_before);
-		free(ctx->commit_graph_hash_after);
+	for (i = 0; i < ctx->num_commit_graphs_after; i++) {
+		free(ctx->commit_graph_filenames_after[i]);
+		free(ctx->commit_graph_hash_after[i]);
 	}
+	free(ctx->commit_graph_filenames_after);
+	free(ctx->commit_graph_hash_after);
 
 	free(ctx);
 
@@ -2692,10 +2665,6 @@
 	struct commit *seen_gen_zero = NULL;
 	struct commit *seen_gen_non_zero = NULL;
 
-	verify_commit_graph_error = verify_commit_graph_lite(g);
-	if (verify_commit_graph_error)
-		return verify_commit_graph_error;
-
 	if (!commit_graph_checksum_valid(g)) {
 		graph_report(_("the commit-graph file has incorrect checksum and is likely corrupt"));
 		verify_commit_graph_error = VERIFY_COMMIT_GRAPH_ERROR_HASH;
diff --git a/compat/mingw.c b/compat/mingw.c
index 4bcbccf..320fb99 100644
--- a/compat/mingw.c
+++ b/compat/mingw.c
@@ -2695,6 +2695,30 @@
 	return result;
 }
 
+static BOOL user_sid_to_user_name(PSID sid, LPSTR *str)
+{
+	SID_NAME_USE pe_use;
+	DWORD len_user = 0, len_domain = 0;
+	BOOL translate_sid_to_user;
+
+	/*
+	 * returns only FALSE, because the string pointers are NULL
+	 */
+	LookupAccountSidA(NULL, sid, NULL, &len_user, NULL, &len_domain,
+			  &pe_use);
+	/*
+	 * Alloc needed space of the strings
+	 */
+	ALLOC_ARRAY((*str), (size_t)len_domain + (size_t)len_user);
+	translate_sid_to_user = LookupAccountSidA(NULL, sid,
+	    (*str) + len_domain, &len_user, *str, &len_domain, &pe_use);
+	if (!translate_sid_to_user)
+		FREE_AND_NULL(*str);
+	else
+		(*str)[len_domain] = '/';
+	return translate_sid_to_user;
+}
+
 static int acls_supported(const char *path)
 {
 	size_t offset = offset_1st_component(path);
@@ -2776,27 +2800,47 @@
 			strbuf_addf(report, "'%s' is on a file system that does "
 				    "not record ownership\n", path);
 		} else if (report) {
-			LPSTR str1, str2, to_free1 = NULL, to_free2 = NULL;
+			LPSTR str1, str2, str3, str4, to_free1 = NULL,
+			    to_free3 = NULL, to_local_free2 = NULL,
+			    to_local_free4 = NULL;
 
-			if (ConvertSidToStringSidA(sid, &str1))
+			if (user_sid_to_user_name(sid, &str1))
 				to_free1 = str1;
 			else
 				str1 = "(inconvertible)";
-
-			if (!current_user_sid)
-				str2 = "(none)";
-			else if (!IsValidSid(current_user_sid))
-				str2 = "(invalid)";
-			else if (ConvertSidToStringSidA(current_user_sid, &str2))
-				to_free2 = str2;
+			if (ConvertSidToStringSidA(sid, &str2))
+				to_local_free2 = str2;
 			else
 				str2 = "(inconvertible)";
+
+			if (!current_user_sid) {
+				str3 = "(none)";
+				str4 = "(none)";
+			}
+			else if (!IsValidSid(current_user_sid)) {
+				str3 = "(invalid)";
+				str4 = "(invalid)";
+			} else {
+				if (user_sid_to_user_name(current_user_sid,
+							  &str3))
+					to_free3 = str3;
+				else
+					str3 = "(inconvertible)";
+				if (ConvertSidToStringSidA(current_user_sid,
+							   &str4))
+					to_local_free4 = str4;
+				else
+					str4 = "(inconvertible)";
+			}
 			strbuf_addf(report,
 				    "'%s' is owned by:\n"
-				    "\t'%s'\nbut the current user is:\n"
-				    "\t'%s'\n", path, str1, str2);
-			LocalFree(to_free1);
-			LocalFree(to_free2);
+				    "\t%s (%s)\nbut the current user is:\n"
+				    "\t%s (%s)\n",
+				    path, str1, str2, str3, str4);
+			free(to_free1);
+			LocalFree(to_local_free2);
+			free(to_free3);
+			LocalFree(to_local_free4);
 		}
 	}
 
diff --git a/config.c b/config.c
index 9ff6ae1..3cfeb3d 100644
--- a/config.c
+++ b/config.c
@@ -95,7 +95,6 @@
 	return ftell(conf->u.file);
 }
 
-
 static int config_buf_fgetc(struct config_source *conf)
 {
 	if (conf->u.buf.pos < conf->u.buf.len)
@@ -1988,7 +1987,27 @@
 	return system_config;
 }
 
-void git_global_config(char **user_out, char **xdg_out)
+char *git_global_config(void)
+{
+	char *user_config, *xdg_config;
+
+	git_global_config_paths(&user_config, &xdg_config);
+	if (!user_config) {
+		free(xdg_config);
+		return NULL;
+	}
+
+	if (access_or_warn(user_config, R_OK, 0) && xdg_config &&
+	    !access_or_warn(xdg_config, R_OK, 0)) {
+		free(user_config);
+		return xdg_config;
+	} else {
+		free(xdg_config);
+		return user_config;
+	}
+}
+
+void git_global_config_paths(char **user_out, char **xdg_out)
 {
 	char *user_config = xstrdup_or_null(getenv("GIT_CONFIG_GLOBAL"));
 	char *xdg_config = NULL;
@@ -2041,7 +2060,7 @@
 							 data, CONFIG_SCOPE_SYSTEM,
 							 NULL);
 
-	git_global_config(&user_config, &xdg_config);
+	git_global_config_paths(&user_config, &xdg_config);
 
 	if (xdg_config && !access_or_die(xdg_config, R_OK, ACCESS_EACCES_OK))
 		ret += git_config_from_file_with_options(fn, xdg_config, data,
@@ -3418,7 +3437,6 @@
 write_err_out:
 	ret = write_error(get_lock_file_path(&lock));
 	goto out_free;
-
 }
 
 void git_config_set_multivar_in_file(const char *config_filename,
diff --git a/config.h b/config.h
index 14f881e..5dba984 100644
--- a/config.h
+++ b/config.h
@@ -382,7 +382,8 @@
 #endif
 
 char *git_system_config(void);
-void git_global_config(char **user, char **xdg);
+char *git_global_config(void);
+void git_global_config_paths(char **user, char **xdg);
 
 int git_config_parse_parameter(const char *, config_fn_t fn, void *data);
 
diff --git a/config.mak.uname b/config.mak.uname
index 3bb03f4..dacc951 100644
--- a/config.mak.uname
+++ b/config.mak.uname
@@ -158,6 +158,19 @@
 		ifeq ($(shell test -x /usr/local/opt/gettext/bin/msgfmt && echo y),y)
 			MSGFMT = /usr/local/opt/gettext/bin/msgfmt
 		endif
+	# On newer ARM-based machines the default installation path has changed to
+	# /opt/homebrew. Include it in our search paths so that the user does not
+	# have to configure this manually.
+	#
+	# Note that we do not employ the same workaround as above where we manually
+	# add gettext. The issue was fixed more than three years ago by now, and at
+	# that point there haven't been any ARM-based Macs yet.
+	else ifeq ($(shell test -d /opt/homebrew/ && echo y),y)
+		BASIC_CFLAGS += -I/opt/homebrew/include
+		BASIC_LDFLAGS += -L/opt/homebrew/lib
+		ifeq ($(shell test -x /opt/homebrew/bin/msgfmt && echo y),y)
+			MSGFMT = /opt/homebrew/bin/msgfmt
+		endif
 	endif
 
 	# The builtin FSMonitor on MacOS builds upon Simple-IPC.  Both require
diff --git a/configure.ac b/configure.ac
index 276593c..d1a96da 100644
--- a/configure.ac
+++ b/configure.ac
@@ -94,7 +94,7 @@
 [AC_ARG_WITH([$1],
  [AS_HELP_STRING([--with-$1=VALUE], $3)],
  if test -n "$withval"; then
-  if test "$withval" = "yes" -o "$withval" = "no"; then
+  if test "$withval" = "yes" || test "$withval" = "no"; then
     AC_MSG_WARN([You likely do not want either 'yes' or 'no' as]
 		     [a value for $1 ($2).  Maybe you do...?])
   fi
diff --git a/contrib/buildsystems/CMakeLists.txt b/contrib/buildsystems/CMakeLists.txt
index 6b819e2..804629c 100644
--- a/contrib/buildsystems/CMakeLists.txt
+++ b/contrib/buildsystems/CMakeLists.txt
@@ -974,6 +974,35 @@
 parse_makefile_for_sources(test-reftable_SOURCES "REFTABLE_TEST_OBJS")
 list(TRANSFORM test-reftable_SOURCES PREPEND "${CMAKE_SOURCE_DIR}/")
 
+#unit-tests
+add_library(unit-test-lib OBJECT ${CMAKE_SOURCE_DIR}/t/unit-tests/test-lib.c)
+
+parse_makefile_for_scripts(unit_test_PROGRAMS "UNIT_TEST_PROGRAMS" "")
+foreach(unit_test ${unit_test_PROGRAMS})
+	add_executable("${unit_test}" "${CMAKE_SOURCE_DIR}/t/unit-tests/${unit_test}.c")
+	target_link_libraries("${unit_test}" unit-test-lib common-main)
+	set_target_properties("${unit_test}"
+		PROPERTIES RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/t/unit-tests/bin)
+	if(MSVC)
+		set_target_properties("${unit_test}"
+			PROPERTIES RUNTIME_OUTPUT_DIRECTORY_DEBUG ${CMAKE_BINARY_DIR}/t/unit-tests/bin)
+		set_target_properties("${unit_test}"
+			PROPERTIES RUNTIME_OUTPUT_DIRECTORY_RELEASE ${CMAKE_BINARY_DIR}/t/unit-tests/bin)
+	endif()
+	list(APPEND PROGRAMS_BUILT "${unit_test}")
+
+	# t-basic intentionally fails tests, to validate the unit-test infrastructure.
+	# Therefore, it should only be run as part of t0080, which verifies that it
+	# fails only in the expected ways.
+	#
+	# All other unit tests should be run.
+	if(NOT ${unit_test} STREQUAL "t-basic")
+		add_test(NAME "t.unit-tests.${unit_test}"
+			COMMAND "./${unit_test}"
+			WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}/t/unit-tests/bin)
+	endif()
+endforeach()
+
 #test-tool
 parse_makefile_for_sources(test-tool_SOURCES "TEST_BUILTINS_OBJS")
 
@@ -1093,17 +1122,18 @@
 	file(COPY ${CMAKE_SOURCE_DIR}/contrib/completion/git-completion.bash DESTINATION ${CMAKE_BINARY_DIR}/contrib/completion/)
 endif()
 
-file(GLOB test_scipts "${CMAKE_SOURCE_DIR}/t/t[0-9]*.sh")
+file(GLOB test_scripts "${CMAKE_SOURCE_DIR}/t/t[0-9]*.sh")
 
 #test
-foreach(tsh ${test_scipts})
-	add_test(NAME ${tsh}
+foreach(tsh ${test_scripts})
+	string(REGEX REPLACE ".*/(.*)\\.sh" "\\1" test_name ${tsh})
+	add_test(NAME "t.suite.${test_name}"
 		COMMAND ${SH_EXE} ${tsh} --no-bin-wrappers --no-chain-lint -vx
 		WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}/t)
 endforeach()
 
 # This test script takes an extremely long time and is known to time out even
 # on fast machines because it requires in excess of one hour to run
-set_tests_properties("${CMAKE_SOURCE_DIR}/t/t7112-reset-submodule.sh" PROPERTIES TIMEOUT 4000)
+set_tests_properties("t.suite.t7112-reset-submodule" PROPERTIES TIMEOUT 4000)
 
 endif()#BUILD_TESTING
diff --git a/contrib/completion/git-completion.bash b/contrib/completion/git-completion.bash
index e21a39b..444b3ef 100644
--- a/contrib/completion/git-completion.bash
+++ b/contrib/completion/git-completion.bash
@@ -137,6 +137,9 @@
 __git_pseudoref_exists ()
 {
 	local ref=$1
+	local head
+
+	__git_find_repo_path
 
 	# If the reftable is in use, we have to shell out to 'git rev-parse'
 	# to determine whether the ref exists instead of looking directly in
@@ -144,9 +147,8 @@
 	# Bash builtins since executing Git commands are expensive on some
 	# platforms.
 	if __git_eread "$__git_repo_path/HEAD" head; then
-		b="${head#ref: }"
-		if [ "$b" == "refs/heads/.invalid" ]; then
-			__git -C "$__git_repo_path" rev-parse --verify --quiet "$ref" 2>/dev/null
+		if [ "$head" == "ref: refs/heads/.invalid" ]; then
+			__git show-ref --exists "$ref"
 			return $?
 		fi
 	fi
@@ -1481,12 +1483,32 @@
 {
 	__git_has_doubledash && return
 
-	local subcommands="start bad good skip reset visualize replay log run"
-	local subcommand="$(__git_find_on_cmdline "$subcommands")"
+	__git_find_repo_path
+
+	# If a bisection is in progress get the terms being used.
+	local term_bad term_good
+	if [ -f "$__git_repo_path"/BISECT_TERMS ]; then
+		term_bad=$(__git bisect terms --term-bad)
+		term_good=$(__git bisect terms --term-good)
+	fi
+
+	# We will complete any custom terms, but still always complete the
+	# more usual bad/new/good/old because git bisect gives a good error
+	# message if these are given when not in use, and that's better than
+	# silent refusal to complete if the user is confused.
+	#
+	# We want to recognize 'view' but not complete it, because it overlaps
+	# with 'visualize' too much and is just an alias for it.
+	#
+	local completable_subcommands="start bad new $term_bad good old $term_good terms skip reset visualize replay log run help"
+	local all_subcommands="$completable_subcommands view"
+
+	local subcommand="$(__git_find_on_cmdline "$all_subcommands")"
+
 	if [ -z "$subcommand" ]; then
 		__git_find_repo_path
 		if [ -f "$__git_repo_path"/BISECT_START ]; then
-			__gitcomp "$subcommands"
+			__gitcomp "$completable_subcommands"
 		else
 			__gitcomp "replay start"
 		fi
@@ -1494,7 +1516,26 @@
 	fi
 
 	case "$subcommand" in
-	bad|good|reset|skip|start)
+	start)
+		case "$cur" in
+		--*)
+			__gitcomp "--first-parent --no-checkout --term-new --term-bad --term-old --term-good"
+			return
+			;;
+		*)
+			__git_complete_refs
+			;;
+		esac
+		;;
+	terms)
+		__gitcomp "--term-good --term-old --term-bad --term-new"
+		return
+		;;
+	visualize|view)
+		__git_complete_log_opts
+		return
+		;;
+	bad|new|"$term_bad"|good|old|"$term_good"|reset|skip)
 		__git_complete_refs
 		;;
 	*)
@@ -1656,7 +1697,6 @@
 
 _git_cherry_pick ()
 {
-	__git_find_repo_path
 	if __git_pseudoref_exists CHERRY_PICK_HEAD; then
 		__gitcomp "$__git_cherry_pick_inprogress_options"
 		return
@@ -1807,7 +1847,7 @@
 			--output= --output-indicator-context=
 			--output-indicator-new= --output-indicator-old=
 			--ws-error-highlight=
-			--pickaxe-all --pickaxe-regex
+			--pickaxe-all --pickaxe-regex --patch-with-raw
 "
 
 # Options for diff/difftool
@@ -2071,6 +2111,16 @@
 	--min-age= --until= --before=
 	--min-parents= --max-parents=
 	--no-min-parents --no-max-parents
+	--alternate-refs --ancestry-path
+	--author-date-order --basic-regexp
+	--bisect --boundary --exclude-first-parent-only
+	--exclude-hidden --extended-regexp
+	--fixed-strings --grep-reflog
+	--ignore-missing --left-only --perl-regexp
+	--reflog --regexp-ignore-case --remove-empty
+	--right-only --show-linear-break
+	--show-notes-by-default --show-pulls
+	--since-as-filter --single-worktree
 "
 # Options that go well for log and gitk (not shortlog)
 __git_log_gitk_options="
@@ -2086,6 +2136,7 @@
 # Options accepted by log and show
 __git_log_show_options="
 	--diff-merges --diff-merges= --no-diff-merges --dd --remerge-diff
+	--encoding=
 "
 
 __git_diff_merges_opts="off none on first-parent 1 separate m combined c dense-combined cc remerge r"
@@ -2093,10 +2144,12 @@
 __git_log_pretty_formats="oneline short medium full fuller reference email raw format: tformat: mboxrd"
 __git_log_date_formats="relative iso8601 iso8601-strict rfc2822 short local default human raw unix auto: format:"
 
-_git_log ()
+# Complete porcelain (i.e. not git-rev-list) options and at least some
+# option arguments accepted by git-log.  Note that this same set of options
+# are also accepted by some other git commands besides git-log.
+__git_complete_log_opts ()
 {
-	__git_has_doubledash && return
-	__git_find_repo_path
+	COMPREPLY=()
 
 	local merge=""
 	if __git_pseudoref_exists MERGE_HEAD; then
@@ -2169,6 +2222,8 @@
 			--no-walk --no-walk= --do-walk
 			--parents --children
 			--expand-tabs --expand-tabs= --no-expand-tabs
+			--clear-decorations --decorate-refs=
+			--decorate-refs-exclude=
 			$merge
 			$__git_diff_common_options
 			"
@@ -2190,6 +2245,16 @@
 		return
 		;;
 	esac
+}
+
+_git_log ()
+{
+	__git_has_doubledash && return
+	__git_find_repo_path
+
+	__git_complete_log_opts
+        [ ${#COMPREPLY[@]} -eq 0 ] || return
+
 	__git_complete_revlist
 }
 
@@ -2595,6 +2660,31 @@
 	__git_config_vars="$(git help --config-for-completion)"
 }
 
+__git_config_vars_all=
+__git_compute_config_vars_all ()
+{
+	test -n "$__git_config_vars_all" ||
+	__git_config_vars_all="$(git --no-pager help --config)"
+}
+
+__git_compute_first_level_config_vars_for_section ()
+{
+	local section="$1"
+	__git_compute_config_vars
+	local this_section="__git_first_level_config_vars_for_section_${section}"
+	test -n "${!this_section}" ||
+	printf -v "__git_first_level_config_vars_for_section_${section}" %s "$(echo "$__git_config_vars" | grep -E "^${section}\.[a-z]" | awk -F. '{print $2}')"
+}
+
+__git_compute_second_level_config_vars_for_section ()
+{
+	local section="$1"
+	__git_compute_config_vars_all
+	local this_section="__git_second_level_config_vars_for_section_${section}"
+	test -n "${!this_section}" ||
+	printf -v "__git_second_level_config_vars_for_section_${section}" %s "$(echo "$__git_config_vars_all" | grep -E "^${section}\.<" | awk -F. '{print $3}')"
+}
+
 __git_config_sections=
 __git_compute_config_sections ()
 {
@@ -2739,73 +2829,50 @@
 	done
 
 	case "$cur_" in
-	branch.*.*)
+	branch.*.*|guitool.*.*|difftool.*.*|man.*.*|mergetool.*.*|remote.*.*|submodule.*.*|url.*.*)
 		local pfx="${cur_%.*}."
 		cur_="${cur_##*.}"
-		__gitcomp "remote pushRemote merge mergeOptions rebase" "$pfx" "$cur_" "$sfx"
+		local section="${pfx%.*.}"
+		__git_compute_second_level_config_vars_for_section "${section}"
+		local this_section="__git_second_level_config_vars_for_section_${section}"
+		__gitcomp "${!this_section}" "$pfx" "$cur_" "$sfx"
 		return
 		;;
 	branch.*)
 		local pfx="${cur_%.*}."
 		cur_="${cur_#*.}"
+		local section="${pfx%.}"
 		__gitcomp_direct "$(__git_heads "$pfx" "$cur_" ".")"
-		__gitcomp_nl_append $'autoSetupMerge\nautoSetupRebase\n' "$pfx" "$cur_" "${sfx- }"
-		return
-		;;
-	guitool.*.*)
-		local pfx="${cur_%.*}."
-		cur_="${cur_##*.}"
-		__gitcomp "
-			argPrompt cmd confirm needsFile noConsole noRescan
-			prompt revPrompt revUnmerged title
-			" "$pfx" "$cur_" "$sfx"
-		return
-		;;
-	difftool.*.*)
-		local pfx="${cur_%.*}."
-		cur_="${cur_##*.}"
-		__gitcomp "cmd path" "$pfx" "$cur_" "$sfx"
-		return
-		;;
-	man.*.*)
-		local pfx="${cur_%.*}."
-		cur_="${cur_##*.}"
-		__gitcomp "cmd path" "$pfx" "$cur_" "$sfx"
-		return
-		;;
-	mergetool.*.*)
-		local pfx="${cur_%.*}."
-		cur_="${cur_##*.}"
-		__gitcomp "cmd path trustExitCode" "$pfx" "$cur_" "$sfx"
+		__git_compute_first_level_config_vars_for_section "${section}"
+		local this_section="__git_first_level_config_vars_for_section_${section}"
+		__gitcomp_nl_append "${!this_section}" "$pfx" "$cur_" "${sfx:- }"
 		return
 		;;
 	pager.*)
 		local pfx="${cur_%.*}."
 		cur_="${cur_#*.}"
 		__git_compute_all_commands
-		__gitcomp_nl "$__git_all_commands" "$pfx" "$cur_" "${sfx- }"
-		return
-		;;
-	remote.*.*)
-		local pfx="${cur_%.*}."
-		cur_="${cur_##*.}"
-		__gitcomp "
-			url proxy fetch push mirror skipDefaultUpdate
-			receivepack uploadpack tagOpt pushurl
-			" "$pfx" "$cur_" "$sfx"
+		__gitcomp_nl "$__git_all_commands" "$pfx" "$cur_" "${sfx:- }"
 		return
 		;;
 	remote.*)
 		local pfx="${cur_%.*}."
 		cur_="${cur_#*.}"
+		local section="${pfx%.}"
 		__gitcomp_nl "$(__git_remotes)" "$pfx" "$cur_" "."
-		__gitcomp_nl_append "pushDefault" "$pfx" "$cur_" "${sfx- }"
+		__git_compute_first_level_config_vars_for_section "${section}"
+		local this_section="__git_first_level_config_vars_for_section_${section}"
+		__gitcomp_nl_append "${!this_section}" "$pfx" "$cur_" "${sfx:- }"
 		return
 		;;
-	url.*.*)
+	submodule.*)
 		local pfx="${cur_%.*}."
-		cur_="${cur_##*.}"
-		__gitcomp "insteadOf pushInsteadOf" "$pfx" "$cur_" "$sfx"
+		cur_="${cur_#*.}"
+		local section="${pfx%.}"
+		__gitcomp_nl "$(__git config -f "$(__git rev-parse --show-toplevel)/.gitmodules" --get-regexp 'submodule.*.path' | awk -F. '{print $2}')" "$pfx" "$cur_" "."
+		__git_compute_first_level_config_vars_for_section "${section}"
+		local this_section="__git_first_level_config_vars_for_section_${section}"
+		__gitcomp_nl_append "${!this_section}" "$pfx" "$cur_" "${sfx:- }"
 		return
 		;;
 	*.*)
@@ -2966,7 +3033,6 @@
 
 _git_restore ()
 {
-	__git_find_repo_path
 	case "$prev" in
 	-s)
 		__git_complete_refs
@@ -2995,7 +3061,6 @@
 
 _git_revert ()
 {
-	__git_find_repo_path
 	if __git_pseudoref_exists REVERT_HEAD; then
 		__gitcomp "$__git_revert_inprogress_options"
 		return
@@ -3117,12 +3182,119 @@
 			COMPREPLY+=("$c/")
 			_found=1
 		fi
-	done < <(git ls-tree -z -d --name-only HEAD $_tmp_dir)
+	done < <(__git ls-tree -z -d --name-only HEAD $_tmp_dir)
 
 	if [[ $_found == 0 ]] && [[ "$cur" =~ /$ ]]; then
 		# No possible further completions any deeper, so assume we're at
 		# a leaf directory and just consider it complete
 		__gitcomp_direct_append "$cur "
+	elif [[ $_found == 0 ]]; then
+		# No possible completions found.  Avoid falling back to
+		# bash's default file and directory completion, because all
+		# valid completions have already been searched and the
+		# fallbacks can do nothing but mislead.  In fact, they can
+		# mislead in three different ways:
+		#    1) Fallback file completion makes no sense when asking
+		#       for directory completions, as this function does.
+		#    2) Fallback directory completion is bad because
+		#       e.g. "/pro" is invalid and should NOT complete to
+		#       "/proc".
+		#    3) Fallback file/directory completion only completes
+		#       on paths that exist in the current working tree,
+		#       i.e. which are *already* part of their
+		#       sparse-checkout.  Thus, normal file and directory
+		#       completion is always useless for "git
+		#       sparse-checkout add" and is also probelmatic for
+		#       "git sparse-checkout set" unless using it to
+		#       strictly narrow the checkout.
+		COMPREPLY=( "" )
+	fi
+}
+
+# In non-cone mode, the arguments to {set,add} are supposed to be
+# patterns, relative to the toplevel directory.  These can be any kind
+# of general pattern, like 'subdir/*.c' and we can't complete on all
+# of those.  However, if the user presses Tab to get tab completion, we
+# presume that they are trying to provide a pattern that names a specific
+# path.
+__gitcomp_slash_leading_paths ()
+{
+	local dequoted_word pfx="" cur_ toplevel
+
+	# Since we are dealing with a sparse-checkout, subdirectories may not
+	# exist in the local working copy.  Therefore, we want to run all
+	# ls-files commands relative to the repository toplevel.
+	toplevel="$(git rev-parse --show-toplevel)/"
+
+	__git_dequote "$cur"
+
+	# If the paths provided by the user already start with '/', then
+	# they are considered relative to the toplevel of the repository
+	# already.  If they do not start with /, then we need to adjust
+	# them to start with the appropriate prefix.
+	case "$cur" in
+	/*)
+		cur="${cur:1}"
+		;;
+	*)
+		pfx="$(__git rev-parse --show-prefix)"
+	esac
+
+	# Since sparse-index is limited to cone-mode, in non-cone-mode the
+	# list of valid paths is precisely the cached files in the index.
+	#
+	# NEEDSWORK:
+	#   1) We probably need to take care of cases where ls-files
+	#      responds with special quoting.
+	#   2) We probably need to take care of cases where ${cur} has
+	#      some kind of special quoting.
+	#   3) On top of any quoting from 1 & 2, we have to provide an extra
+	#      level of quoting for any paths that contain a '*', '?', '\',
+	#      '[', ']', or leading '#' or '!' since those will be
+	#      interpreted by sparse-checkout as something other than a
+	#      literal path character.
+	# Since there are two types of quoting here, this might get really
+	# complex.  For now, just punt on all of this...
+	completions="$(__git -C "${toplevel}" -c core.quotePath=false \
+			 ls-files --cached -- "${pfx}${cur}*" \
+			 | sed -e s%^%/% -e 's%$% %')"
+	# Note, above, though that we needed all of the completions to be
+	# prefixed with a '/', and we want to add a space so that bash
+	# completion will actually complete an entry and let us move on to
+	# the next one.
+
+	# Return what we've found.
+	if test -n "$completions"; then
+		# We found some completions; return them
+		local IFS=$'\n'
+		COMPREPLY=($completions)
+	else
+		# Do NOT fall back to bash-style all-local-files-and-dirs
+		# when we find no match.  Such options are worse than
+		# useless:
+		#     1. "git sparse-checkout add" needs paths that are NOT
+		#        currently in the working copy.  "git
+		#        sparse-checkout set" does as well, except in the
+		#        special cases when users are only trying to narrow
+		#        their sparse checkout to a subset of what they
+		#        already have.
+		#
+		#     2. A path like '.config' is ambiguous as to whether
+		#        the user wants all '.config' files throughout the
+		#        tree, or just the one under the current directory.
+		#        It would result in a warning from the
+		#        sparse-checkout command due to this.  As such, all
+		#        completions of paths should be prefixed with a
+		#        '/'.
+		#
+		#     3. We don't want paths prefixed with a '/' to
+		#        complete files in the system root directory, we
+		#        want it to complete on files relative to the
+		#        repository root.
+		#
+		# As such, make sure that NO completions are offered rather
+		# than falling back to bash's default completions.
+		COMPREPLY=( "" )
 	fi
 }
 
@@ -3130,6 +3302,7 @@
 {
 	local subcommands="list init set disable add reapply"
 	local subcommand="$(__git_find_on_cmdline "$subcommands")"
+	local using_cone=true
 	if [ -z "$subcommand" ]; then
 		__gitcomp "$subcommands"
 		return
@@ -3140,9 +3313,18 @@
 		__gitcomp_builtin sparse-checkout_$subcommand "" "--"
 		;;
 	set,*|add,*)
-		if [ "$(__git config core.sparseCheckoutCone)" == "true" ] ||
-		[ -n "$(__git_find_on_cmdline --cone)" ]; then
+		if [[ "$(__git config core.sparseCheckout)" == "true" &&
+		      "$(__git config core.sparseCheckoutCone)" == "false" &&
+		      -z "$(__git_find_on_cmdline --cone)" ]]; then
+			using_cone=false
+		fi
+		if [[ -n "$(__git_find_on_cmdline --no-cone)" ]]; then
+			using_cone=false
+		fi
+		if [[ "$using_cone" == "true" ]]; then
 			__gitcomp_directories
+		else
+			 __gitcomp_slash_leading_paths
 		fi
 	esac
 }
diff --git a/contrib/completion/git-prompt.sh b/contrib/completion/git-prompt.sh
index 2c03005..71f179c 100644
--- a/contrib/completion/git-prompt.sh
+++ b/contrib/completion/git-prompt.sh
@@ -408,7 +408,7 @@
 
 	local repo_info rev_parse_exit_code
 	repo_info="$(git rev-parse --git-dir --is-inside-git-dir \
-		--is-bare-repository --is-inside-work-tree \
+		--is-bare-repository --is-inside-work-tree --show-ref-format \
 		--short HEAD 2>/dev/null)"
 	rev_parse_exit_code="$?"
 
@@ -421,6 +421,8 @@
 		short_sha="${repo_info##*$'\n'}"
 		repo_info="${repo_info%$'\n'*}"
 	fi
+	local ref_format="${repo_info##*$'\n'}"
+	repo_info="${repo_info%$'\n'*}"
 	local inside_worktree="${repo_info##*$'\n'}"
 	repo_info="${repo_info%$'\n'*}"
 	local bare_repo="${repo_info##*$'\n'}"
@@ -479,12 +481,25 @@
 			b="$(git symbolic-ref HEAD 2>/dev/null)"
 		else
 			local head=""
-			if ! __git_eread "$g/HEAD" head; then
-				return $exit
-			fi
-			# is it a symbolic ref?
-			b="${head#ref: }"
-			if [ "$head" = "$b" ]; then
+
+			case "$ref_format" in
+			files)
+				if ! __git_eread "$g/HEAD" head; then
+					return $exit
+				fi
+
+				if [[ $head == "ref: "* ]]; then
+					head="${head#ref: }"
+				else
+					head=""
+				fi
+				;;
+			*)
+				head="$(git symbolic-ref HEAD 2>/dev/null)"
+				;;
+			esac
+
+			if test -z "$head"; then
 				detached=yes
 				b="$(
 				case "${GIT_PS1_DESCRIBE_STYLE-}" in
@@ -502,6 +517,8 @@
 
 				b="$short_sha..."
 				b="($b)"
+			else
+				b="$head"
 			fi
 		fi
 	fi
diff --git a/contrib/credential/wincred/git-credential-wincred.c b/contrib/credential/wincred/git-credential-wincred.c
index 4cd56c4..4be0d58 100644
--- a/contrib/credential/wincred/git-credential-wincred.c
+++ b/contrib/credential/wincred/git-credential-wincred.c
@@ -35,7 +35,7 @@
 }
 
 static WCHAR *wusername, *password, *protocol, *host, *path, target[1024],
-	*password_expiry_utc;
+	*password_expiry_utc, *oauth_refresh_token;
 
 static void write_item(const char *what, LPCWSTR wbuf, int wlen)
 {
@@ -140,6 +140,11 @@
 	DWORD num_creds;
 	int i;
 	CREDENTIAL_ATTRIBUTEW *attr;
+	WCHAR *secret;
+	WCHAR *line;
+	WCHAR *remaining_lines;
+	WCHAR *part;
+	WCHAR *remaining_parts;
 
 	if (!CredEnumerateW(L"git:*", 0, &num_creds, &creds))
 		return;
@@ -149,9 +154,24 @@
 		if (match_cred(creds[i], 0)) {
 			write_item("username", creds[i]->UserName,
 				creds[i]->UserName ? wcslen(creds[i]->UserName) : 0);
-			write_item("password",
-				(LPCWSTR)creds[i]->CredentialBlob,
-				creds[i]->CredentialBlobSize / sizeof(WCHAR));
+			if (creds[i]->CredentialBlobSize > 0) {
+				secret = xmalloc(creds[i]->CredentialBlobSize);
+				wcsncpy_s(secret, creds[i]->CredentialBlobSize, (LPCWSTR)creds[i]->CredentialBlob, creds[i]->CredentialBlobSize / sizeof(WCHAR));
+				line = wcstok_s(secret, L"\r\n", &remaining_lines);
+				write_item("password", line, line ? wcslen(line) : 0);
+				while(line != NULL) {
+					part = wcstok_s(line, L"=", &remaining_parts);
+					if (!wcscmp(part, L"oauth_refresh_token")) {
+						write_item("oauth_refresh_token", remaining_parts, remaining_parts ? wcslen(remaining_parts) : 0);
+					}
+					line = wcstok_s(NULL, L"\r\n", &remaining_lines);
+				}
+				free(secret);
+			} else {
+				write_item("password",
+						(LPCWSTR)creds[i]->CredentialBlob,
+						creds[i]->CredentialBlobSize / sizeof(WCHAR));
+			}
 			for (int j = 0; j < creds[i]->AttributeCount; j++) {
 				attr = creds[i]->Attributes + j;
 				if (!wcscmp(attr->Keyword, L"git_password_expiry_utc")) {
@@ -170,16 +190,26 @@
 {
 	CREDENTIALW cred;
 	CREDENTIAL_ATTRIBUTEW expiry_attr;
+	WCHAR *secret;
+	int wlen;
 
 	if (!wusername || !password)
 		return;
 
+	if (oauth_refresh_token) {
+		wlen = _scwprintf(L"%s\r\noauth_refresh_token=%s", password, oauth_refresh_token);
+		secret = xmalloc(sizeof(WCHAR) * wlen);
+		_snwprintf_s(secret, sizeof(WCHAR) * wlen, wlen, L"%s\r\noauth_refresh_token=%s", password, oauth_refresh_token);
+	} else {
+		secret = _wcsdup(password);
+	}
+
 	cred.Flags = 0;
 	cred.Type = CRED_TYPE_GENERIC;
 	cred.TargetName = target;
 	cred.Comment = L"saved by git-credential-wincred";
-	cred.CredentialBlobSize = (wcslen(password)) * sizeof(WCHAR);
-	cred.CredentialBlob = (LPVOID)password;
+	cred.CredentialBlobSize = wcslen(secret) * sizeof(WCHAR);
+	cred.CredentialBlob = (LPVOID)_wcsdup(secret);
 	cred.Persist = CRED_PERSIST_LOCAL_MACHINE;
 	cred.AttributeCount = 0;
 	cred.Attributes = NULL;
@@ -194,6 +224,8 @@
 	cred.TargetAlias = NULL;
 	cred.UserName = wusername;
 
+	free(secret);
+
 	if (!CredWriteW(&cred, 0))
 		die("CredWrite failed");
 }
@@ -265,6 +297,8 @@
 			password = utf8_to_utf16_dup(v);
 		else if (!strcmp(buf, "password_expiry_utc"))
 			password_expiry_utc = utf8_to_utf16_dup(v);
+		else if (!strcmp(buf, "oauth_refresh_token"))
+			oauth_refresh_token = utf8_to_utf16_dup(v);
 		/*
 		 * Ignore other lines; we don't know what they mean, but
 		 * this future-proofs us when later versions of git do
diff --git a/contrib/subtree/git-subtree.sh b/contrib/subtree/git-subtree.sh
index e0c5d3b..5dab3f5 100755
--- a/contrib/subtree/git-subtree.sh
+++ b/contrib/subtree/git-subtree.sh
@@ -373,7 +373,8 @@
 
 # Usage: process_subtree_split_trailer SPLIT_HASH MAIN_HASH [REPOSITORY]
 process_subtree_split_trailer () {
-	assert test $# = 2 -o $# = 3
+	assert test $# -ge 2
+	assert test $# -le 3
 	b="$1"
 	sq="$2"
 	repository=""
@@ -402,7 +403,8 @@
 
 # Usage: find_latest_squash DIR [REPOSITORY]
 find_latest_squash () {
-	assert test $# = 1 -o $# = 2
+	assert test $# -ge 1
+	assert test $# -le 2
 	dir="$1"
 	repository=""
 	if test "$#" = 2
@@ -455,7 +457,8 @@
 
 # Usage: find_existing_splits DIR REV [REPOSITORY]
 find_existing_splits () {
-	assert test $# = 2 -o $# = 3
+	assert test $# -ge 2
+	assert test $# -le 3
 	debug "Looking for prior splits..."
 	local indent=$(($indent + 1))
 
@@ -489,13 +492,13 @@
 			;;
 		END)
 			debug "Main is: '$main'"
-			if test -z "$main" -a -n "$sub"
+			if test -z "$main" && test -n "$sub"
 			then
 				# squash commits refer to a subtree
 				debug "  Squash: $sq from $sub"
 				cache_set "$sq" "$sub"
 			fi
-			if test -n "$main" -a -n "$sub"
+			if test -n "$main" && test -n "$sub"
 			then
 				debug "  Prior: $main -> $sub"
 				cache_set $main $sub
@@ -638,10 +641,16 @@
 	while read mode type tree name
 	do
 		assert test "$name" = "$dir"
-		assert test "$type" = "tree" -o "$type" = "commit"
-		test "$type" = "commit" && continue  # ignore submodules
-		echo $tree
-		break
+
+		case "$type" in
+		commit)
+			continue;; # ignore submodules
+		tree)
+			echo $tree
+			break;;
+		*)
+			die "fatal: tree entry is of type ${type}, expected tree or commit";;
+		esac
 	done || exit $?
 }
 
@@ -778,6 +787,22 @@
 		die "fatal: '$1' does not look like a ref"
 }
 
+# Usage: check if a commit from another subtree should be
+# ignored from processing for splits
+should_ignore_subtree_split_commit () {
+	assert test $# = 1
+	local rev="$1"
+	if test -n "$(git log -1 --grep="git-subtree-dir:" $rev)"
+	then
+		if test -z "$(git log -1 --grep="git-subtree-mainline:" $rev)" &&
+			test -z "$(git log -1 --grep="git-subtree-dir: $arg_prefix$" $rev)"
+		then
+			return 0
+		fi
+	fi
+	return 1
+}
+
 # Usage: process_split_commit REV PARENTS
 process_split_commit () {
 	assert test $# = 2
@@ -916,7 +941,7 @@
 	if test $# -eq 0
 	then
 		rev=$(git rev-parse HEAD)
-	elif test $# -eq 1 -o $# -eq 2
+	elif test $# -eq 1 || test $# -eq 2
 	then
 		rev=$(git rev-parse -q --verify "$1^{commit}") ||
 			die "fatal: '$1' does not refer to a commit"
@@ -963,7 +988,19 @@
 	eval "$grl" |
 	while read rev parents
 	do
-		process_split_commit "$rev" "$parents"
+		if should_ignore_subtree_split_commit "$rev"
+		then
+			continue
+		fi
+		parsedparents=''
+		for parent in $parents
+		do
+			if ! should_ignore_subtree_split_commit "$parent"
+			then
+				parsedparents="$parsedparents$parent "
+			fi
+		done
+		process_split_commit "$rev" "$parsedparents"
 	done || exit $?
 
 	latest_new=$(cache_get latest_new) || exit $?
@@ -1006,8 +1043,11 @@
 
 # Usage: cmd_merge REV [REPOSITORY]
 cmd_merge () {
-	test $# -eq 1 -o $# -eq 2 ||
+	if test $# -lt 1 || test $# -gt 2
+	then
 		die "fatal: you must provide exactly one revision, and optionally a repository. Got: '$*'"
+	fi
+
 	rev=$(git rev-parse -q --verify "$1^{commit}") ||
 		die "fatal: '$1' does not refer to a commit"
 	repository=""
diff --git a/contrib/subtree/t/t7900-subtree.sh b/contrib/subtree/t/t7900-subtree.sh
index 49a21dd..ca4df5b 100755
--- a/contrib/subtree/t/t7900-subtree.sh
+++ b/contrib/subtree/t/t7900-subtree.sh
@@ -385,6 +385,46 @@
 	)
 '
 
+# Tests that commits from other subtrees are not processed as
+# part of a split.
+#
+# This test performs the following:
+# - Creates Repo with subtrees 'subA' and 'subB'
+# - Creates commits in the repo including changes to subtrees
+# - Runs the following 'split' and commit' commands in order:
+# 	- Perform 'split' on subtree A
+# 	- Perform 'split' on subtree B
+# 	- Create new commits with changes to subtree A and B
+# 	- Perform split on subtree A
+# 	- Check that the commits in subtree B are not processed
+#			as part of the subtree A split
+test_expect_success 'split with multiple subtrees' '
+	subtree_test_create_repo "$test_count" &&
+	subtree_test_create_repo "$test_count/subA" &&
+	subtree_test_create_repo "$test_count/subB" &&
+	test_create_commit "$test_count" main1 &&
+	test_create_commit "$test_count/subA" subA1 &&
+	test_create_commit "$test_count/subA" subA2 &&
+	test_create_commit "$test_count/subA" subA3 &&
+	test_create_commit "$test_count/subB" subB1 &&
+	git -C "$test_count" fetch ./subA HEAD &&
+	git -C "$test_count" subtree add --prefix=subADir FETCH_HEAD &&
+	git -C "$test_count" fetch ./subB HEAD &&
+	git -C "$test_count" subtree add --prefix=subBDir FETCH_HEAD &&
+	test_create_commit "$test_count" subADir/main-subA1 &&
+	test_create_commit "$test_count" subBDir/main-subB1 &&
+	git -C "$test_count" subtree split --prefix=subADir \
+		--squash --rejoin -m "Sub A Split 1" &&
+	git -C "$test_count" subtree split --prefix=subBDir \
+		--squash --rejoin -m "Sub B Split 1" &&
+	test_create_commit "$test_count" subADir/main-subA2 &&
+	test_create_commit "$test_count" subBDir/main-subB2 &&
+	git -C "$test_count" subtree split --prefix=subADir \
+		--squash --rejoin -m "Sub A Split 2" &&
+	test "$(git -C "$test_count" subtree split --prefix=subBDir \
+		--squash --rejoin -d -m "Sub B Split 1" 2>&1 | grep -w "\[1\]")" = ""
+'
+
 test_expect_success 'split sub dir/ with --rejoin from scratch' '
 	subtree_test_create_repo "$test_count" &&
 	test_create_commit "$test_count" main1 &&
diff --git a/diff-lib.c b/diff-lib.c
index 8fde93d..6c8df04 100644
--- a/diff-lib.c
+++ b/diff-lib.c
@@ -37,7 +37,13 @@
  */
 static int check_removed(const struct cache_entry *ce, struct stat *st)
 {
-	if (lstat(ce->name, st) < 0) {
+	int stat_err;
+
+	if (!(ce->ce_flags & CE_FSMONITOR_VALID))
+		stat_err = lstat(ce->name, st);
+	else
+		stat_err = fake_lstat(ce, st);
+	if (stat_err < 0) {
 		if (!is_missing_file_error(errno))
 			return -1;
 		return 1;
diff --git a/diff.c b/diff.c
index ccfa1fc..e50def4 100644
--- a/diff.c
+++ b/diff.c
@@ -5590,7 +5590,7 @@
 		OPT_BITOP(0, "shortstat", &options->output_format,
 			  N_("output only the last line of --stat"),
 			  DIFF_FORMAT_SHORTSTAT, DIFF_FORMAT_NO_OUTPUT),
-		OPT_CALLBACK_F('X', "dirstat", options, N_("<param1,param2>..."),
+		OPT_CALLBACK_F('X', "dirstat", options, N_("<param1>,<param2>..."),
 			       N_("output the distribution of relative amount of changes for each sub-directory"),
 			       PARSE_OPT_NONEG | PARSE_OPT_OPTARG,
 			       diff_opt_dirstat),
@@ -5598,8 +5598,8 @@
 			       N_("synonym for --dirstat=cumulative"),
 			       PARSE_OPT_NONEG | PARSE_OPT_NOARG,
 			       diff_opt_dirstat),
-		OPT_CALLBACK_F(0, "dirstat-by-file", options, N_("<param1,param2>..."),
-			       N_("synonym for --dirstat=files,param1,param2..."),
+		OPT_CALLBACK_F(0, "dirstat-by-file", options, N_("<param1>,<param2>..."),
+			       N_("synonym for --dirstat=files,<param1>,<param2>..."),
 			       PARSE_OPT_NONEG | PARSE_OPT_OPTARG,
 			       diff_opt_dirstat),
 		OPT_BIT_F(0, "check", &options->output_format,
diff --git a/dir.c b/dir.c
index 3e75c12..ac69954 100644
--- a/dir.c
+++ b/dir.c
@@ -2178,7 +2178,8 @@
 		       PATHSPEC_LITERAL |
 		       PATHSPEC_GLOB |
 		       PATHSPEC_ICASE |
-		       PATHSPEC_EXCLUDE);
+		       PATHSPEC_EXCLUDE |
+		       PATHSPEC_ATTR);
 
 	for (i = 0; i < pathspec->nr; i++) {
 		const struct pathspec_item *item = &pathspec->items[i];
diff --git a/ewah/bitmap.c b/ewah/bitmap.c
index 7b525b1..ac7e0af 100644
--- a/ewah/bitmap.c
+++ b/ewah/bitmap.c
@@ -169,6 +169,15 @@
 	return count;
 }
 
+int bitmap_is_empty(struct bitmap *self)
+{
+	size_t i;
+	for (i = 0; i < self->word_alloc; i++)
+		if (self->words[i])
+			return 0;
+	return 1;
+}
+
 int bitmap_equals(struct bitmap *self, struct bitmap *other)
 {
 	struct bitmap *big, *small;
diff --git a/ewah/ewok.h b/ewah/ewok.h
index 7eb8b9b..c11d76c 100644
--- a/ewah/ewok.h
+++ b/ewah/ewok.h
@@ -189,5 +189,6 @@
 void bitmap_or(struct bitmap *self, const struct bitmap *other);
 
 size_t bitmap_popcount(struct bitmap *self);
+int bitmap_is_empty(struct bitmap *self);
 
 #endif
diff --git a/fsck.c b/fsck.c
index 1ad02fc..8ded0a4 100644
--- a/fsck.c
+++ b/fsck.c
@@ -20,7 +20,6 @@
 #include "packfile.h"
 #include "submodule-config.h"
 #include "config.h"
-#include "credential.h"
 #include "help.h"
 
 static ssize_t max_tree_entry_len = 4096;
@@ -1047,138 +1046,6 @@
 	return ret;
 }
 
-static int starts_with_dot_slash(const char *const path)
-{
-	return path_match_flags(path, PATH_MATCH_STARTS_WITH_DOT_SLASH |
-				PATH_MATCH_XPLATFORM);
-}
-
-static int starts_with_dot_dot_slash(const char *const path)
-{
-	return path_match_flags(path, PATH_MATCH_STARTS_WITH_DOT_DOT_SLASH |
-				PATH_MATCH_XPLATFORM);
-}
-
-static int submodule_url_is_relative(const char *url)
-{
-	return starts_with_dot_slash(url) || starts_with_dot_dot_slash(url);
-}
-
-/*
- * Count directory components that a relative submodule URL should chop
- * from the remote_url it is to be resolved against.
- *
- * In other words, this counts "../" components at the start of a
- * submodule URL.
- *
- * Returns the number of directory components to chop and writes a
- * pointer to the next character of url after all leading "./" and
- * "../" components to out.
- */
-static int count_leading_dotdots(const char *url, const char **out)
-{
-	int result = 0;
-	while (1) {
-		if (starts_with_dot_dot_slash(url)) {
-			result++;
-			url += strlen("../");
-			continue;
-		}
-		if (starts_with_dot_slash(url)) {
-			url += strlen("./");
-			continue;
-		}
-		*out = url;
-		return result;
-	}
-}
-/*
- * Check whether a transport is implemented by git-remote-curl.
- *
- * If it is, returns 1 and writes the URL that would be passed to
- * git-remote-curl to the "out" parameter.
- *
- * Otherwise, returns 0 and leaves "out" untouched.
- *
- * Examples:
- *   http::https://example.com/repo.git -> 1, https://example.com/repo.git
- *   https://example.com/repo.git -> 1, https://example.com/repo.git
- *   git://example.com/repo.git -> 0
- *
- * This is for use in checking for previously exploitable bugs that
- * required a submodule URL to be passed to git-remote-curl.
- */
-static int url_to_curl_url(const char *url, const char **out)
-{
-	/*
-	 * We don't need to check for case-aliases, "http.exe", and so
-	 * on because in the default configuration, is_transport_allowed
-	 * prevents URLs with those schemes from being cloned
-	 * automatically.
-	 */
-	if (skip_prefix(url, "http::", out) ||
-	    skip_prefix(url, "https::", out) ||
-	    skip_prefix(url, "ftp::", out) ||
-	    skip_prefix(url, "ftps::", out))
-		return 1;
-	if (starts_with(url, "http://") ||
-	    starts_with(url, "https://") ||
-	    starts_with(url, "ftp://") ||
-	    starts_with(url, "ftps://")) {
-		*out = url;
-		return 1;
-	}
-	return 0;
-}
-
-static int check_submodule_url(const char *url)
-{
-	const char *curl_url;
-
-	if (looks_like_command_line_option(url))
-		return -1;
-
-	if (submodule_url_is_relative(url) || starts_with(url, "git://")) {
-		char *decoded;
-		const char *next;
-		int has_nl;
-
-		/*
-		 * This could be appended to an http URL and url-decoded;
-		 * check for malicious characters.
-		 */
-		decoded = url_decode(url);
-		has_nl = !!strchr(decoded, '\n');
-
-		free(decoded);
-		if (has_nl)
-			return -1;
-
-		/*
-		 * URLs which escape their root via "../" can overwrite
-		 * the host field and previous components, resolving to
-		 * URLs like https::example.com/submodule.git and
-		 * https:///example.com/submodule.git that were
-		 * susceptible to CVE-2020-11008.
-		 */
-		if (count_leading_dotdots(url, &next) > 0 &&
-		    (*next == ':' || *next == '/'))
-			return -1;
-	}
-
-	else if (url_to_curl_url(url, &curl_url)) {
-		struct credential c = CREDENTIAL_INIT;
-		int ret = 0;
-		if (credential_from_url_gently(&c, curl_url, 1) ||
-		    !*c.host)
-			ret = -1;
-		credential_clear(&c);
-		return ret;
-	}
-
-	return 0;
-}
-
 struct fsck_gitmodules_data {
 	const struct object_id *oid;
 	struct fsck_options *options;
diff --git a/git-compat-util.h b/git-compat-util.h
index 3e7a59b..7c2a653 100644
--- a/git-compat-util.h
+++ b/git-compat-util.h
@@ -225,6 +225,7 @@
 #include <stddef.h>
 #include <stdlib.h>
 #include <stdarg.h>
+#include <stdbool.h>
 #include <string.h>
 #ifdef HAVE_STRINGS_H
 #include <strings.h> /* for strcasecmp() */
@@ -684,11 +685,11 @@
 void set_die_is_recursing_routine(int (*routine)(void));
 
 /*
- * If the string "str" begins with the string found in "prefix", return 1.
+ * If the string "str" begins with the string found in "prefix", return true.
  * The "out" parameter is set to "str + strlen(prefix)" (i.e., to the point in
  * the string right after the prefix).
  *
- * Otherwise, return 0 and leave "out" untouched.
+ * Otherwise, return false and leave "out" untouched.
  *
  * Examples:
  *
@@ -699,57 +700,58 @@
  *   [skip prefix if present, otherwise use whole string]
  *   skip_prefix(name, "refs/heads/", &name);
  */
-static inline int skip_prefix(const char *str, const char *prefix,
-			      const char **out)
+static inline bool skip_prefix(const char *str, const char *prefix,
+			       const char **out)
 {
 	do {
 		if (!*prefix) {
 			*out = str;
-			return 1;
+			return true;
 		}
 	} while (*str++ == *prefix++);
-	return 0;
+	return false;
 }
 
 /*
  * Like skip_prefix, but promises never to read past "len" bytes of the input
  * buffer, and returns the remaining number of bytes in "out" via "outlen".
  */
-static inline int skip_prefix_mem(const char *buf, size_t len,
-				  const char *prefix,
-				  const char **out, size_t *outlen)
+static inline bool skip_prefix_mem(const char *buf, size_t len,
+				   const char *prefix,
+				   const char **out, size_t *outlen)
 {
 	size_t prefix_len = strlen(prefix);
 	if (prefix_len <= len && !memcmp(buf, prefix, prefix_len)) {
 		*out = buf + prefix_len;
 		*outlen = len - prefix_len;
-		return 1;
+		return true;
 	}
-	return 0;
+	return false;
 }
 
 /*
- * If buf ends with suffix, return 1 and subtract the length of the suffix
- * from *len. Otherwise, return 0 and leave *len untouched.
+ * If buf ends with suffix, return true and subtract the length of the suffix
+ * from *len. Otherwise, return false and leave *len untouched.
  */
-static inline int strip_suffix_mem(const char *buf, size_t *len,
-				   const char *suffix)
+static inline bool strip_suffix_mem(const char *buf, size_t *len,
+				    const char *suffix)
 {
 	size_t suflen = strlen(suffix);
 	if (*len < suflen || memcmp(buf + (*len - suflen), suffix, suflen))
-		return 0;
+		return false;
 	*len -= suflen;
-	return 1;
+	return true;
 }
 
 /*
- * If str ends with suffix, return 1 and set *len to the size of the string
- * without the suffix. Otherwise, return 0 and set *len to the size of the
+ * If str ends with suffix, return true and set *len to the size of the string
+ * without the suffix. Otherwise, return false and set *len to the size of the
  * string.
  *
  * Note that we do _not_ NUL-terminate str to the new length.
  */
-static inline int strip_suffix(const char *str, const char *suffix, size_t *len)
+static inline bool strip_suffix(const char *str, const char *suffix,
+				size_t *len)
 {
 	*len = strlen(str);
 	return strip_suffix_mem(str, len, suffix);
@@ -1013,6 +1015,15 @@
 	return (unsigned long)a;
 }
 
+static inline uint32_t cast_size_t_to_uint32_t(size_t a)
+{
+	if (a != (uint32_t)a)
+		die("object too large to read on this platform: %"
+		    PRIuMAX" is cut off to %u",
+		    (uintmax_t)a, (uint32_t)a);
+	return (uint32_t)a;
+}
+
 static inline int cast_size_t_to_int(size_t a)
 {
 	if (a > INT_MAX)
diff --git a/git-p4.py b/git-p4.py
index 156597a..28ab12c 100755
--- a/git-p4.py
+++ b/git-p4.py
@@ -4251,7 +4251,8 @@
         if self.tempBranches != []:
             for branch in self.tempBranches:
                 read_pipe(["git", "update-ref", "-d", branch])
-            os.rmdir(os.path.join(os.environ.get("GIT_DIR", ".git"), self.tempBranchLocation))
+            if len(read_pipe(["git", "for-each-ref", self.tempBranchLocation])) > 0:
+                   die("There are unexpected temporary branches")
 
         # Create a symbolic ref p4/HEAD pointing to p4/<branch> to allow
         # a convenient shortcut refname "p4".
diff --git a/git.c b/git.c
index c67e44d..7068a18 100644
--- a/git.c
+++ b/git.c
@@ -594,6 +594,7 @@
 	{ "remote-fd", cmd_remote_fd, NO_PARSEOPT },
 	{ "repack", cmd_repack, RUN_SETUP },
 	{ "replace", cmd_replace, RUN_SETUP },
+	{ "replay", cmd_replay, RUN_SETUP },
 	{ "rerere", cmd_rerere, RUN_SETUP },
 	{ "reset", cmd_reset, RUN_SETUP },
 	{ "restore", cmd_restore, RUN_SETUP | NEED_WORK_TREE },
diff --git a/gitweb/gitweb.perl b/gitweb/gitweb.perl
index fc6d5dd..ccd14e0 100755
--- a/gitweb/gitweb.perl
+++ b/gitweb/gitweb.perl
@@ -728,9 +728,11 @@
 sub read_config_file {
 	my $filename = shift;
 	return unless defined $filename;
-	# die if there are errors parsing config file
 	if (-e $filename) {
 		do $filename;
+		# die if there is a problem accessing the file
+		die $! if $!;
+		# die if there are errors parsing config file
 		die $@ if $@;
 		return 1;
 	}
diff --git a/http-backend.c b/http-backend.c
index ff07b87..1ed1e29 100644
--- a/http-backend.c
+++ b/http-backend.c
@@ -38,6 +38,7 @@
 static struct rpc_service rpc_service[] = {
 	{ "upload-pack", "uploadpack", 1, 1 },
 	{ "receive-pack", "receivepack", 0, -1 },
+	{ "upload-archive", "uploadarchive", 0, -1 },
 };
 
 static struct string_list *get_parameters(void)
@@ -639,10 +640,15 @@
 
 static void service_rpc(struct strbuf *hdr, char *service_name)
 {
-	const char *argv[] = {NULL, "--stateless-rpc", ".", NULL};
+	struct strvec argv = STRVEC_INIT;
 	struct rpc_service *svc = select_service(hdr, service_name);
 	struct strbuf buf = STRBUF_INIT;
 
+	strvec_push(&argv, svc->name);
+	if (strcmp(service_name, "git-upload-archive"))
+		strvec_push(&argv, "--stateless-rpc");
+	strvec_push(&argv, ".");
+
 	strbuf_reset(&buf);
 	strbuf_addf(&buf, "application/x-git-%s-request", svc->name);
 	check_content_type(hdr, buf.buf);
@@ -655,9 +661,9 @@
 
 	end_headers(hdr);
 
-	argv[0] = svc->name;
-	run_service(argv, svc->buffer_input);
+	run_service(argv.v, svc->buffer_input);
 	strbuf_release(&buf);
+	strvec_clear(&argv);
 }
 
 static int dead;
@@ -723,6 +729,7 @@
 	{"GET", "/objects/pack/pack-[0-9a-f]{64}\\.idx$", get_idx_file},
 
 	{"POST", "/git-upload-pack$", service_rpc},
+	{"POST", "/git-upload-archive$", service_rpc},
 	{"POST", "/git-receive-pack$", service_rpc}
 };
 
diff --git a/http-push.c b/http-push.c
index b4d0b2a..12d1113 100644
--- a/http-push.c
+++ b/http-push.c
@@ -1851,6 +1851,7 @@
 
 		if (oideq(&ref->old_oid, &ref->peer_ref->new_oid)) {
 			if (push_verbosely)
+				/* stable plumbing output; do not modify or localize */
 				fprintf(stderr, "'%s': up-to-date\n", ref->name);
 			if (helper_status)
 				printf("ok %s up to date\n", ref->name);
@@ -1871,6 +1872,7 @@
 				 * commits at the remote end and likely
 				 * we were not up to date to begin with.
 				 */
+				/* stable plumbing output; do not modify or localize */
 				error("remote '%s' is not an ancestor of\n"
 				      "local '%s'.\n"
 				      "Maybe you are not up-to-date and "
diff --git a/mem-pool.c b/mem-pool.c
index c34846d..c7d6256 100644
--- a/mem-pool.c
+++ b/mem-pool.c
@@ -89,9 +89,7 @@
 	struct mp_block *p = NULL;
 	void *r;
 
-	/* round up to a 'GIT_MAX_ALIGNMENT' alignment */
-	if (len & (GIT_MAX_ALIGNMENT - 1))
-		len += GIT_MAX_ALIGNMENT - (len & (GIT_MAX_ALIGNMENT - 1));
+	len = DIV_ROUND_UP(len, GIT_MAX_ALIGNMENT) * GIT_MAX_ALIGNMENT;
 
 	if (pool->mp_block &&
 	    pool->mp_block->end - pool->mp_block->next_free >= len)
@@ -99,9 +97,9 @@
 
 	if (!p) {
 		if (len >= (pool->block_alloc / 2))
-			return mem_pool_alloc_block(pool, len, pool->mp_block);
-
-		p = mem_pool_alloc_block(pool, pool->block_alloc, NULL);
+			p = mem_pool_alloc_block(pool, len, pool->mp_block);
+		else
+			p = mem_pool_alloc_block(pool, pool->block_alloc, NULL);
 	}
 
 	r = p->next_free;
diff --git a/merge-ll.c b/merge-ll.c
index 1df58eb..5ffb045 100644
--- a/merge-ll.c
+++ b/merge-ll.c
@@ -185,9 +185,9 @@
 static enum ll_merge_result ll_ext_merge(const struct ll_merge_driver *fn,
 			mmbuffer_t *result,
 			const char *path,
-			mmfile_t *orig, const char *orig_name UNUSED,
-			mmfile_t *src1, const char *name1 UNUSED,
-			mmfile_t *src2, const char *name2 UNUSED,
+			mmfile_t *orig, const char *orig_name,
+			mmfile_t *src1, const char *name1,
+			mmfile_t *src2, const char *name2,
 			const struct ll_merge_options *opts,
 			int marker_size)
 {
@@ -222,6 +222,12 @@
 			strbuf_addf(&cmd, "%d", marker_size);
 		else if (skip_prefix(format, "P", &format))
 			sq_quote_buf(&cmd, path);
+		else if (skip_prefix(format, "S", &format))
+			sq_quote_buf(&cmd, orig_name ? orig_name : "");
+		else if (skip_prefix(format, "X", &format))
+			sq_quote_buf(&cmd, name1 ? name1 : "");
+		else if (skip_prefix(format, "Y", &format))
+			sq_quote_buf(&cmd, name2 ? name2 : "");
 		else
 			strbuf_addch(&cmd, '%');
 	}
@@ -315,7 +321,12 @@
 		 *    %B - temporary file name for the other branches' version.
 		 *    %L - conflict marker length
 		 *    %P - the original path (safely quoted for the shell)
+		 *    %S - the revision for the merge base
+		 *    %X - the revision for our version
+		 *    %Y - the revision for their version
 		 *
+		 * If the file is not named indentically in all versions, then each
+		 * revision is joined with the corresponding path, separated by a colon.
 		 * The external merge driver should write the results in the
 		 * file named by %A, and signal that it has done with zero exit
 		 * status.
diff --git a/merge-ort.c b/merge-ort.c
index cb83449..8617bab 100644
--- a/merge-ort.c
+++ b/merge-ort.c
@@ -38,6 +38,7 @@
 #include "path.h"
 #include "promisor-remote.h"
 #include "read-cache-ll.h"
+#include "refs.h"
 #include "revision.h"
 #include "sparse-index.h"
 #include "strmap.h"
@@ -4659,9 +4660,6 @@
 {
 	assert(opt->priv == NULL);
 	if (result->clean >= 0 && update_worktree_and_index) {
-		const char *filename;
-		FILE *fp;
-
 		trace2_region_enter("merge", "checkout", opt->repo);
 		if (checkout(opt, head, result->tree)) {
 			/* failure to function */
@@ -4687,10 +4685,17 @@
 		trace2_region_leave("merge", "record_conflicted", opt->repo);
 
 		trace2_region_enter("merge", "write_auto_merge", opt->repo);
-		filename = git_path_auto_merge(opt->repo);
-		fp = xfopen(filename, "w");
-		fprintf(fp, "%s\n", oid_to_hex(&result->tree->object.oid));
-		fclose(fp);
+		if (refs_update_ref(get_main_ref_store(opt->repo), "", "AUTO_MERGE",
+				    &result->tree->object.oid, NULL, REF_NO_DEREF,
+				    UPDATE_REFS_MSG_ON_ERR)) {
+			/* failure to function */
+			opt->priv = NULL;
+			result->clean = -1;
+			merge_finalize(opt, result);
+			trace2_region_leave("merge", "write_auto_merge",
+					    opt->repo);
+			return;
+		}
 		trace2_region_leave("merge", "write_auto_merge", opt->repo);
 	}
 	if (display_update_msgs)
diff --git a/midx.c b/midx.c
index 2f3863c..85e1c2c 100644
--- a/midx.c
+++ b/midx.c
@@ -21,6 +21,7 @@
 #include "refs.h"
 #include "revision.h"
 #include "list-objects.h"
+#include "pack-revindex.h"
 
 #define MIDX_SIGNATURE 0x4d494458 /* "MIDX" */
 #define MIDX_VERSION 1
@@ -33,6 +34,7 @@
 
 #define MIDX_CHUNK_ALIGNMENT 4
 #define MIDX_CHUNKID_PACKNAMES 0x504e414d /* "PNAM" */
+#define MIDX_CHUNKID_BITMAPPEDPACKS 0x42544d50 /* "BTMP" */
 #define MIDX_CHUNKID_OIDFANOUT 0x4f494446 /* "OIDF" */
 #define MIDX_CHUNKID_OIDLOOKUP 0x4f49444c /* "OIDL" */
 #define MIDX_CHUNKID_OBJECTOFFSETS 0x4f4f4646 /* "OOFF" */
@@ -41,6 +43,7 @@
 #define MIDX_CHUNK_FANOUT_SIZE (sizeof(uint32_t) * 256)
 #define MIDX_CHUNK_OFFSET_WIDTH (2 * sizeof(uint32_t))
 #define MIDX_CHUNK_LARGE_OFFSET_WIDTH (sizeof(uint64_t))
+#define MIDX_CHUNK_BITMAPPED_PACKS_WIDTH (2 * sizeof(uint32_t))
 #define MIDX_LARGE_OFFSET_NEEDED 0x80000000
 
 #define PACK_EXPIRED UINT_MAX
@@ -64,6 +67,7 @@
 static int midx_read_oid_fanout(const unsigned char *chunk_start,
 				size_t chunk_size, void *data)
 {
+	int i;
 	struct multi_pack_index *m = data;
 	m->chunk_oid_fanout = (uint32_t *)chunk_start;
 
@@ -71,6 +75,16 @@
 		error(_("multi-pack-index OID fanout is of the wrong size"));
 		return 1;
 	}
+	for (i = 0; i < 255; i++) {
+		uint32_t oid_fanout1 = ntohl(m->chunk_oid_fanout[i]);
+		uint32_t oid_fanout2 = ntohl(m->chunk_oid_fanout[i+1]);
+
+		if (oid_fanout1 > oid_fanout2) {
+			error(_("oid fanout out of order: fanout[%d] = %"PRIx32" > %"PRIx32" = fanout[%d]"),
+			      i, oid_fanout1, oid_fanout2, i + 1);
+			return 1;
+		}
+	}
 	m->num_objects = ntohl(m->chunk_oid_fanout[255]);
 	return 0;
 }
@@ -164,6 +178,8 @@
 
 	m->num_packs = get_be32(m->data + MIDX_BYTE_NUM_PACKS);
 
+	m->preferred_pack_idx = -1;
+
 	cf = init_chunkfile(NULL);
 
 	if (read_table_of_contents(cf, m->data, midx_size,
@@ -182,6 +198,9 @@
 
 	pair_chunk(cf, MIDX_CHUNKID_LARGEOFFSETS, &m->chunk_large_offsets,
 		   &m->chunk_large_offsets_len);
+	pair_chunk(cf, MIDX_CHUNKID_BITMAPPEDPACKS,
+		   (const unsigned char **)&m->chunk_bitmapped_packs,
+		   &m->chunk_bitmapped_packs_len);
 
 	if (git_env_bool("GIT_TEST_MIDX_READ_RIDX", 1))
 		pair_chunk(cf, MIDX_CHUNKID_REVINDEX, &m->chunk_revindex,
@@ -275,6 +294,26 @@
 	return 0;
 }
 
+int nth_bitmapped_pack(struct repository *r, struct multi_pack_index *m,
+		       struct bitmapped_pack *bp, uint32_t pack_int_id)
+{
+	if (!m->chunk_bitmapped_packs)
+		return error(_("MIDX does not contain the BTMP chunk"));
+
+	if (prepare_midx_pack(r, m, pack_int_id))
+		return error(_("could not load bitmapped pack %"PRIu32), pack_int_id);
+
+	bp->p = m->packs[pack_int_id];
+	bp->bitmap_pos = get_be32((char *)m->chunk_bitmapped_packs +
+				  MIDX_CHUNK_BITMAPPED_PACKS_WIDTH * pack_int_id);
+	bp->bitmap_nr = get_be32((char *)m->chunk_bitmapped_packs +
+				 MIDX_CHUNK_BITMAPPED_PACKS_WIDTH * pack_int_id +
+				 sizeof(uint32_t));
+	bp->pack_int_id = pack_int_id;
+
+	return 0;
+}
+
 int bsearch_midx(const struct object_id *oid, struct multi_pack_index *m, uint32_t *result)
 {
 	return bsearch_hash(oid->hash, m->chunk_oid_fanout, m->chunk_oid_lookup,
@@ -392,7 +431,8 @@
 	return strcmp(idx_or_pack_name, idx_name);
 }
 
-int midx_contains_pack(struct multi_pack_index *m, const char *idx_or_pack_name)
+int midx_locate_pack(struct multi_pack_index *m, const char *idx_or_pack_name,
+		     uint32_t *pos)
 {
 	uint32_t first = 0, last = m->num_packs;
 
@@ -403,8 +443,11 @@
 
 		current = m->pack_names[mid];
 		cmp = cmp_idx_or_pack_name(idx_or_pack_name, current);
-		if (!cmp)
+		if (!cmp) {
+			if (pos)
+				*pos = mid;
 			return 1;
+		}
 		if (cmp > 0) {
 			first = mid + 1;
 			continue;
@@ -415,6 +458,28 @@
 	return 0;
 }
 
+int midx_contains_pack(struct multi_pack_index *m, const char *idx_or_pack_name)
+{
+	return midx_locate_pack(m, idx_or_pack_name, NULL);
+}
+
+int midx_preferred_pack(struct multi_pack_index *m, uint32_t *pack_int_id)
+{
+	if (m->preferred_pack_idx == -1) {
+		if (load_midx_revindex(m) < 0) {
+			m->preferred_pack_idx = -2;
+			return -1;
+		}
+
+		m->preferred_pack_idx =
+			nth_midxed_pack_int_id(m, pack_pos_to_midx(m, 0));
+	} else if (m->preferred_pack_idx == -2)
+		return -1; /* no revindex */
+
+	*pack_int_id = m->preferred_pack_idx;
+	return 0;
+}
+
 int prepare_multi_pack_index_one(struct repository *r, const char *object_dir, int local)
 {
 	struct multi_pack_index *m;
@@ -457,13 +522,31 @@
 	return MIDX_HEADER_SIZE;
 }
 
+#define BITMAP_POS_UNKNOWN (~((uint32_t)0))
+
 struct pack_info {
 	uint32_t orig_pack_int_id;
 	char *pack_name;
 	struct packed_git *p;
+
+	uint32_t bitmap_pos;
+	uint32_t bitmap_nr;
+
 	unsigned expired : 1;
 };
 
+static void fill_pack_info(struct pack_info *info,
+			   struct packed_git *p, const char *pack_name,
+			   uint32_t orig_pack_int_id)
+{
+	memset(info, 0, sizeof(struct pack_info));
+
+	info->orig_pack_int_id = orig_pack_int_id;
+	info->pack_name = xstrdup(pack_name);
+	info->p = p;
+	info->bitmap_pos = BITMAP_POS_UNKNOWN;
+}
+
 static int pack_info_compare(const void *_a, const void *_b)
 {
 	struct pack_info *a = (struct pack_info *)_a;
@@ -504,6 +587,7 @@
 			     const char *file_name, void *data)
 {
 	struct write_midx_context *ctx = data;
+	struct packed_git *p;
 
 	if (ends_with(file_name, ".idx")) {
 		display_progress(ctx->progress, ++ctx->pack_paths_checked);
@@ -530,27 +614,22 @@
 
 		ALLOC_GROW(ctx->info, ctx->nr + 1, ctx->alloc);
 
-		ctx->info[ctx->nr].p = add_packed_git(full_path,
-						      full_path_len,
-						      0);
-
-		if (!ctx->info[ctx->nr].p) {
+		p = add_packed_git(full_path, full_path_len, 0);
+		if (!p) {
 			warning(_("failed to add packfile '%s'"),
 				full_path);
 			return;
 		}
 
-		if (open_pack_index(ctx->info[ctx->nr].p)) {
+		if (open_pack_index(p)) {
 			warning(_("failed to open pack-index '%s'"),
 				full_path);
-			close_pack(ctx->info[ctx->nr].p);
-			FREE_AND_NULL(ctx->info[ctx->nr].p);
+			close_pack(p);
+			free(p);
 			return;
 		}
 
-		ctx->info[ctx->nr].pack_name = xstrdup(file_name);
-		ctx->info[ctx->nr].orig_pack_int_id = ctx->nr;
-		ctx->info[ctx->nr].expired = 0;
+		fill_pack_info(&ctx->info[ctx->nr], p, file_name, ctx->nr);
 		ctx->nr++;
 	}
 }
@@ -806,6 +885,26 @@
 	return 0;
 }
 
+static int write_midx_bitmapped_packs(struct hashfile *f, void *data)
+{
+	struct write_midx_context *ctx = data;
+	size_t i;
+
+	for (i = 0; i < ctx->nr; i++) {
+		struct pack_info *pack = &ctx->info[i];
+		if (pack->expired)
+			continue;
+
+		if (pack->bitmap_pos == BITMAP_POS_UNKNOWN && pack->bitmap_nr)
+			BUG("pack '%s' has no bitmap position, but has %d bitmapped object(s)",
+			    pack->pack_name, pack->bitmap_nr);
+
+		hashwrite_be32(f, pack->bitmap_pos);
+		hashwrite_be32(f, pack->bitmap_nr);
+	}
+	return 0;
+}
+
 static int write_midx_oid_fanout(struct hashfile *f,
 				 void *data)
 {
@@ -973,8 +1072,19 @@
 	QSORT(data, ctx->entries_nr, midx_pack_order_cmp);
 
 	ALLOC_ARRAY(pack_order, ctx->entries_nr);
-	for (i = 0; i < ctx->entries_nr; i++)
+	for (i = 0; i < ctx->entries_nr; i++) {
+		struct pack_midx_entry *e = &ctx->entries[data[i].nr];
+		struct pack_info *pack = &ctx->info[ctx->pack_perm[e->pack_int_id]];
+		if (pack->bitmap_pos == BITMAP_POS_UNKNOWN)
+			pack->bitmap_pos = i;
+		pack->bitmap_nr++;
 		pack_order[i] = data[i].nr;
+	}
+	for (i = 0; i < ctx->nr; i++) {
+		struct pack_info *pack = &ctx->info[ctx->pack_perm[i]];
+		if (pack->bitmap_pos == BITMAP_POS_UNKNOWN)
+			pack->bitmap_pos = 0;
+	}
 	free(data);
 
 	trace2_region_leave("midx", "midx_pack_order", the_repository);
@@ -1275,6 +1385,7 @@
 	struct hashfile *f = NULL;
 	struct lock_file lk;
 	struct write_midx_context ctx = { 0 };
+	int bitmapped_packs_concat_len = 0;
 	int pack_name_concat_len = 0;
 	int dropped_packs = 0;
 	int result = 0;
@@ -1310,11 +1421,6 @@
 		for (i = 0; i < ctx.m->num_packs; i++) {
 			ALLOC_GROW(ctx.info, ctx.nr + 1, ctx.alloc);
 
-			ctx.info[ctx.nr].orig_pack_int_id = i;
-			ctx.info[ctx.nr].pack_name = xstrdup(ctx.m->pack_names[i]);
-			ctx.info[ctx.nr].p = ctx.m->packs[i];
-			ctx.info[ctx.nr].expired = 0;
-
 			if (flags & MIDX_WRITE_REV_INDEX) {
 				/*
 				 * If generating a reverse index, need to have
@@ -1330,10 +1436,10 @@
 				if (open_pack_index(ctx.m->packs[i]))
 					die(_("could not open index for %s"),
 					    ctx.m->packs[i]->pack_name);
-				ctx.info[ctx.nr].p = ctx.m->packs[i];
 			}
 
-			ctx.nr++;
+			fill_pack_info(&ctx.info[ctx.nr++], ctx.m->packs[i],
+				       ctx.m->pack_names[i], i);
 		}
 	}
 
@@ -1492,8 +1598,10 @@
 	}
 
 	for (i = 0; i < ctx.nr; i++) {
-		if (!ctx.info[i].expired)
-			pack_name_concat_len += strlen(ctx.info[i].pack_name) + 1;
+		if (ctx.info[i].expired)
+			continue;
+		pack_name_concat_len += strlen(ctx.info[i].pack_name) + 1;
+		bitmapped_packs_concat_len += 2 * sizeof(uint32_t);
 	}
 
 	/* Check that the preferred pack wasn't expired (if given). */
@@ -1553,6 +1661,9 @@
 		add_chunk(cf, MIDX_CHUNKID_REVINDEX,
 			  st_mult(ctx.entries_nr, sizeof(uint32_t)),
 			  write_midx_revindex);
+		add_chunk(cf, MIDX_CHUNKID_BITMAPPEDPACKS,
+			  bitmapped_packs_concat_len,
+			  write_midx_bitmapped_packs);
 	}
 
 	write_midx_header(f, get_num_chunks(cf), ctx.nr - dropped_packs);
@@ -1592,8 +1703,13 @@
 				      flags) < 0) {
 			error(_("could not write multi-pack bitmap"));
 			result = 1;
+			clear_packing_data(&pdata);
+			free(commits);
 			goto cleanup;
 		}
+
+		clear_packing_data(&pdata);
+		free(commits);
 	}
 	/*
 	 * NOTE: Do not use ctx.entries beyond this point, since it might
@@ -1782,15 +1898,6 @@
 	}
 	stop_progress(&progress);
 
-	for (i = 0; i < 255; i++) {
-		uint32_t oid_fanout1 = ntohl(m->chunk_oid_fanout[i]);
-		uint32_t oid_fanout2 = ntohl(m->chunk_oid_fanout[i + 1]);
-
-		if (oid_fanout1 > oid_fanout2)
-			midx_report(_("oid fanout out of order: fanout[%d] = %"PRIx32" > %"PRIx32" = fanout[%d]"),
-				    i, oid_fanout1, oid_fanout2, i + 1);
-	}
-
 	if (m->num_objects == 0) {
 		midx_report(_("the midx contains no oid"));
 		/*
diff --git a/midx.h b/midx.h
index eb57a37..b374a7a 100644
--- a/midx.h
+++ b/midx.h
@@ -6,6 +6,7 @@
 struct object_id;
 struct pack_entry;
 struct repository;
+struct bitmapped_pack;
 
 #define GIT_TEST_MULTI_PACK_INDEX "GIT_TEST_MULTI_PACK_INDEX"
 #define GIT_TEST_MULTI_PACK_INDEX_WRITE_BITMAP \
@@ -27,11 +28,14 @@
 	unsigned char num_chunks;
 	uint32_t num_packs;
 	uint32_t num_objects;
+	int preferred_pack_idx;
 
 	int local;
 
 	const unsigned char *chunk_pack_names;
 	size_t chunk_pack_names_len;
+	const uint32_t *chunk_bitmapped_packs;
+	size_t chunk_bitmapped_packs_len;
 	const uint32_t *chunk_oid_fanout;
 	const unsigned char *chunk_oid_lookup;
 	const unsigned char *chunk_object_offsets;
@@ -57,6 +61,8 @@
 
 struct multi_pack_index *load_multi_pack_index(const char *object_dir, int local);
 int prepare_midx_pack(struct repository *r, struct multi_pack_index *m, uint32_t pack_int_id);
+int nth_bitmapped_pack(struct repository *r, struct multi_pack_index *m,
+		       struct bitmapped_pack *bp, uint32_t pack_int_id);
 int bsearch_midx(const struct object_id *oid, struct multi_pack_index *m, uint32_t *result);
 off_t nth_midxed_offset(struct multi_pack_index *m, uint32_t pos);
 uint32_t nth_midxed_pack_int_id(struct multi_pack_index *m, uint32_t pos);
@@ -64,7 +70,11 @@
 					struct multi_pack_index *m,
 					uint32_t n);
 int fill_midx_entry(struct repository *r, const struct object_id *oid, struct pack_entry *e, struct multi_pack_index *m);
-int midx_contains_pack(struct multi_pack_index *m, const char *idx_or_pack_name);
+int midx_contains_pack(struct multi_pack_index *m,
+		       const char *idx_or_pack_name);
+int midx_locate_pack(struct multi_pack_index *m, const char *idx_or_pack_name,
+		     uint32_t *pos);
+int midx_preferred_pack(struct multi_pack_index *m, uint32_t *pack_int_id);
 int prepare_multi_pack_index_one(struct repository *r, const char *object_dir, int local);
 
 /*
diff --git a/neue b/neue
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/neue
diff --git a/oss-fuzz/.gitignore b/oss-fuzz/.gitignore
index 9acb744..5b95408 100644
--- a/oss-fuzz/.gitignore
+++ b/oss-fuzz/.gitignore
@@ -1,3 +1,4 @@
 fuzz-commit-graph
+fuzz-date
 fuzz-pack-headers
 fuzz-pack-idx
diff --git a/oss-fuzz/dummy-cmd-main.c b/oss-fuzz/dummy-cmd-main.c
new file mode 100644
index 0000000..071cb23
--- /dev/null
+++ b/oss-fuzz/dummy-cmd-main.c
@@ -0,0 +1,14 @@
+#include "git-compat-util.h"
+
+/*
+ * When linking the fuzzers, we link against common-main.o to pick up some
+ * symbols. However, even though we ignore common-main:main(), we still need to
+ * provide all the symbols it references. In the fuzzers' case, we need to
+ * provide a dummy cmd_main() for the linker to be happy. It will never be
+ * executed.
+ */
+
+int cmd_main(int argc, const char **argv) {
+	BUG("We should not execute cmd_main() from a fuzz target");
+	return 1;
+}
diff --git a/oss-fuzz/fuzz-date.c b/oss-fuzz/fuzz-date.c
new file mode 100644
index 0000000..036378b
--- /dev/null
+++ b/oss-fuzz/fuzz-date.c
@@ -0,0 +1,49 @@
+#include "git-compat-util.h"
+#include "date.h"
+
+int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size);
+
+int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
+{
+	int local;
+	int num;
+	char *str;
+	int16_t tz;
+	timestamp_t ts;
+	enum date_mode_type dmtype;
+	struct date_mode *dm;
+
+	if (size <= 4)
+		/*
+		 * we use the first byte to fuzz dmtype and the
+		 * second byte to fuzz local, then the next two
+		 * bytes to fuzz tz offset. The remainder
+		 * (at least one byte) is fed as input to
+		 * approxidate_careful().
+		 */
+		return 0;
+
+	local = !!(*data++ & 0x10);
+	num = *data++ % DATE_UNIX;
+	if (num >= DATE_STRFTIME)
+		num++;
+	dmtype = (enum date_mode_type)num;
+	size -= 2;
+
+	tz = *data++;
+	tz = (tz << 8) | *data++;
+	size -= 2;
+
+	str = xmemdupz(data, size);
+
+	ts = approxidate_careful(str, &num);
+	free(str);
+
+	dm = date_mode_from_type(dmtype);
+	dm->local = local;
+	show_date(ts, (int)tz, dm);
+
+	date_mode_release(dm);
+
+	return 0;
+}
diff --git a/pack-bitmap-write.c b/pack-bitmap-write.c
index be4733e..990a949 100644
--- a/pack-bitmap-write.c
+++ b/pack-bitmap-write.c
@@ -195,6 +195,13 @@
 	unsigned idx; /* within selected array */
 };
 
+static void clear_bb_commit(struct bb_commit *commit)
+{
+	free_commit_list(commit->reverse_edges);
+	bitmap_free(commit->commit_mask);
+	bitmap_free(commit->bitmap);
+}
+
 define_commit_slab(bb_data, struct bb_commit);
 
 struct bitmap_builder {
@@ -336,7 +343,7 @@
 
 static void bitmap_builder_clear(struct bitmap_builder *bb)
 {
-	clear_bb_data(&bb->data);
+	deep_clear_bb_data(&bb->data, clear_bb_commit);
 	free(bb->commits);
 	bb->commits_nr = bb->commits_alloc = 0;
 }
diff --git a/pack-bitmap.c b/pack-bitmap.c
index c88dd35..2baeaba 100644
--- a/pack-bitmap.c
+++ b/pack-bitmap.c
@@ -331,7 +331,7 @@
 	struct stat st;
 	char *bitmap_name = midx_bitmap_filename(midx);
 	int fd = git_open(bitmap_name);
-	uint32_t i;
+	uint32_t i, preferred_pack;
 	struct packed_git *preferred;
 
 	if (fd < 0) {
@@ -386,7 +386,12 @@
 		}
 	}
 
-	preferred = bitmap_git->midx->packs[midx_preferred_pack(bitmap_git)];
+	if (midx_preferred_pack(bitmap_git->midx, &preferred_pack) < 0) {
+		warning(_("could not determine MIDX preferred pack"));
+		goto cleanup;
+	}
+
+	preferred = bitmap_git->midx->packs[preferred_pack];
 	if (!is_pack_valid(preferred)) {
 		warning(_("preferred pack (%s) is invalid"),
 			preferred->pack_name);
@@ -1273,6 +1278,8 @@
 		base = fill_in_bitmap(bitmap_git, revs, base, seen);
 	}
 
+	object_list_free(&not_mapped);
+
 	return base;
 }
 
@@ -1827,8 +1834,10 @@
  * -1 means "stop trying further objects"; 0 means we may or may not have
  * reused, but you can keep feeding bits.
  */
-static int try_partial_reuse(struct packed_git *pack,
-			     size_t pos,
+static int try_partial_reuse(struct bitmap_index *bitmap_git,
+			     struct bitmapped_pack *pack,
+			     size_t bitmap_pos,
+			     uint32_t pack_pos,
 			     struct bitmap *reuse,
 			     struct pack_window **w_curs)
 {
@@ -1836,40 +1845,18 @@
 	enum object_type type;
 	unsigned long size;
 
-	/*
-	 * try_partial_reuse() is called either on (a) objects in the
-	 * bitmapped pack (in the case of a single-pack bitmap) or (b)
-	 * objects in the preferred pack of a multi-pack bitmap.
-	 * Importantly, the latter can pretend as if only a single pack
-	 * exists because:
-	 *
-	 *   - The first pack->num_objects bits of a MIDX bitmap are
-	 *     reserved for the preferred pack, and
-	 *
-	 *   - Ties due to duplicate objects are always resolved in
-	 *     favor of the preferred pack.
-	 *
-	 * Therefore we do not need to ever ask the MIDX for its copy of
-	 * an object by OID, since it will always select it from the
-	 * preferred pack. Likewise, the selected copy of the base
-	 * object for any deltas will reside in the same pack.
-	 *
-	 * This means that we can reuse pos when looking up the bit in
-	 * the reuse bitmap, too, since bits corresponding to the
-	 * preferred pack precede all bits from other packs.
-	 */
+	if (pack_pos >= pack->p->num_objects)
+		return -1; /* not actually in the pack */
 
-	if (pos >= pack->num_objects)
-		return -1; /* not actually in the pack or MIDX preferred pack */
-
-	offset = delta_obj_offset = pack_pos_to_offset(pack, pos);
-	type = unpack_object_header(pack, w_curs, &offset, &size);
+	offset = delta_obj_offset = pack_pos_to_offset(pack->p, pack_pos);
+	type = unpack_object_header(pack->p, w_curs, &offset, &size);
 	if (type < 0)
 		return -1; /* broken packfile, punt */
 
 	if (type == OBJ_REF_DELTA || type == OBJ_OFS_DELTA) {
 		off_t base_offset;
 		uint32_t base_pos;
+		uint32_t base_bitmap_pos;
 
 		/*
 		 * Find the position of the base object so we can look it up
@@ -1879,24 +1866,48 @@
 		 * and the normal slow path will complain about it in
 		 * more detail.
 		 */
-		base_offset = get_delta_base(pack, w_curs, &offset, type,
+		base_offset = get_delta_base(pack->p, w_curs, &offset, type,
 					     delta_obj_offset);
 		if (!base_offset)
 			return 0;
-		if (offset_to_pack_pos(pack, base_offset, &base_pos) < 0)
-			return 0;
 
-		/*
-		 * We assume delta dependencies always point backwards. This
-		 * lets us do a single pass, and is basically always true
-		 * due to the way OFS_DELTAs work. You would not typically
-		 * find REF_DELTA in a bitmapped pack, since we only bitmap
-		 * packs we write fresh, and OFS_DELTA is the default). But
-		 * let's double check to make sure the pack wasn't written with
-		 * odd parameters.
-		 */
-		if (base_pos >= pos)
-			return 0;
+		offset_to_pack_pos(pack->p, base_offset, &base_pos);
+
+		if (bitmap_is_midx(bitmap_git)) {
+			/*
+			 * Cross-pack deltas are rejected for now, but could
+			 * theoretically be supported in the future.
+			 *
+			 * We would need to ensure that we're sending both
+			 * halves of the delta/base pair, regardless of whether
+			 * or not the two cross a pack boundary. If they do,
+			 * then we must convert the delta to an REF_DELTA to
+			 * refer back to the base in the other pack.
+			 * */
+			if (midx_pair_to_pack_pos(bitmap_git->midx,
+						  pack->pack_int_id,
+						  base_offset,
+						  &base_bitmap_pos) < 0) {
+				return 0;
+			}
+		} else {
+			if (offset_to_pack_pos(pack->p, base_offset,
+					       &base_pos) < 0)
+				return 0;
+			/*
+			 * We assume delta dependencies always point backwards.
+			 * This lets us do a single pass, and is basically
+			 * always true due to the way OFS_DELTAs work. You would
+			 * not typically find REF_DELTA in a bitmapped pack,
+			 * since we only bitmap packs we write fresh, and
+			 * OFS_DELTA is the default). But let's double check to
+			 * make sure the pack wasn't written with odd
+			 * parameters.
+			 */
+			if (base_pos >= pack_pos)
+				return 0;
+			base_bitmap_pos = pack->bitmap_pos + base_pos;
+		}
 
 		/*
 		 * And finally, if we're not sending the base as part of our
@@ -1906,77 +1917,89 @@
 		 * to REF_DELTA on the fly. Better to just let the normal
 		 * object_entry code path handle it.
 		 */
-		if (!bitmap_get(reuse, base_pos))
+		if (!bitmap_get(reuse, base_bitmap_pos))
 			return 0;
 	}
 
 	/*
 	 * If we got here, then the object is OK to reuse. Mark it.
 	 */
-	bitmap_set(reuse, pos);
+	bitmap_set(reuse, bitmap_pos);
 	return 0;
 }
 
-uint32_t midx_preferred_pack(struct bitmap_index *bitmap_git)
+static void reuse_partial_packfile_from_bitmap_1(struct bitmap_index *bitmap_git,
+						 struct bitmapped_pack *pack,
+						 struct bitmap *reuse)
 {
-	struct multi_pack_index *m = bitmap_git->midx;
-	if (!m)
-		BUG("midx_preferred_pack: requires non-empty MIDX");
-	return nth_midxed_pack_int_id(m, pack_pos_to_midx(bitmap_git->midx, 0));
-}
-
-int reuse_partial_packfile_from_bitmap(struct bitmap_index *bitmap_git,
-				       struct packed_git **packfile_out,
-				       uint32_t *entries,
-				       struct bitmap **reuse_out)
-{
-	struct repository *r = the_repository;
-	struct packed_git *pack;
 	struct bitmap *result = bitmap_git->result;
-	struct bitmap *reuse;
 	struct pack_window *w_curs = NULL;
-	size_t i = 0;
-	uint32_t offset;
-	uint32_t objects_nr;
+	size_t pos = pack->bitmap_pos / BITS_IN_EWORD;
 
-	assert(result);
+	if (!pack->bitmap_pos) {
+		/*
+		 * If we're processing the first (in the case of a MIDX, the
+		 * preferred pack) or the only (in the case of single-pack
+		 * bitmaps) pack, then we can reuse whole words at a time.
+		 *
+		 * This is because we know that any deltas in this range *must*
+		 * have their bases chosen from the same pack, since:
+		 *
+		 * - In the single pack case, there is no other pack to choose
+		 *   them from.
+		 *
+		 * - In the MIDX case, the first pack is the preferred pack, so
+		 *   all ties are broken in favor of that pack (i.e. the one
+		 *   we're currently processing). So any duplicate bases will be
+		 *   resolved in favor of the pack we're processing.
+		 */
+		while (pos < result->word_alloc &&
+		       pos < pack->bitmap_nr / BITS_IN_EWORD &&
+		       result->words[pos] == (eword_t)~0)
+			pos++;
+		memset(reuse->words, 0xFF, pos * sizeof(eword_t));
+	}
 
-	load_reverse_index(r, bitmap_git);
+	for (; pos < result->word_alloc; pos++) {
+		eword_t word = result->words[pos];
+		size_t offset;
 
-	if (bitmap_is_midx(bitmap_git))
-		pack = bitmap_git->midx->packs[midx_preferred_pack(bitmap_git)];
-	else
-		pack = bitmap_git->pack;
-	objects_nr = pack->num_objects;
+		for (offset = 0; offset < BITS_IN_EWORD; offset++) {
+			size_t bit_pos;
+			uint32_t pack_pos;
 
-	while (i < result->word_alloc && result->words[i] == (eword_t)~0)
-		i++;
-
-	/*
-	 * Don't mark objects not in the packfile or preferred pack. This bitmap
-	 * marks objects eligible for reuse, but the pack-reuse code only
-	 * understands how to reuse a single pack. Since the preferred pack is
-	 * guaranteed to have all bases for its deltas (in a multi-pack bitmap),
-	 * we use it instead of another pack. In single-pack bitmaps, the choice
-	 * is made for us.
-	 */
-	if (i > objects_nr / BITS_IN_EWORD)
-		i = objects_nr / BITS_IN_EWORD;
-
-	reuse = bitmap_word_alloc(i);
-	memset(reuse->words, 0xFF, i * sizeof(eword_t));
-
-	for (; i < result->word_alloc; ++i) {
-		eword_t word = result->words[i];
-		size_t pos = (i * BITS_IN_EWORD);
-
-		for (offset = 0; offset < BITS_IN_EWORD; ++offset) {
-			if ((word >> offset) == 0)
+			if (word >> offset == 0)
 				break;
 
 			offset += ewah_bit_ctz64(word >> offset);
-			if (try_partial_reuse(pack, pos + offset,
-					      reuse, &w_curs) < 0) {
+
+			bit_pos = pos * BITS_IN_EWORD + offset;
+			if (bit_pos < pack->bitmap_pos)
+				continue;
+			if (bit_pos >= pack->bitmap_pos + pack->bitmap_nr)
+				goto done;
+
+			if (bitmap_is_midx(bitmap_git)) {
+				uint32_t midx_pos;
+				off_t ofs;
+
+				midx_pos = pack_pos_to_midx(bitmap_git->midx, bit_pos);
+				ofs = nth_midxed_offset(bitmap_git->midx, midx_pos);
+
+				if (offset_to_pack_pos(pack->p, ofs, &pack_pos) < 0)
+					BUG("could not find object in pack %s "
+					    "at offset %"PRIuMAX" in MIDX",
+					    pack_basename(pack->p), (uintmax_t)ofs);
+			} else {
+				pack_pos = cast_size_t_to_uint32_t(st_sub(bit_pos, pack->bitmap_pos));
+				if (pack_pos >= pack->p->num_objects)
+					BUG("advanced beyond the end of pack %s (%"PRIuMAX" > %"PRIu32")",
+					    pack_basename(pack->p), (uintmax_t)pack_pos,
+					    pack->p->num_objects);
+			}
+
+			if (try_partial_reuse(bitmap_git, pack, bit_pos,
+					      pack_pos, reuse, &w_curs) < 0) {
 				/*
 				 * try_partial_reuse indicated we couldn't reuse
 				 * any bits, so there is no point in trying more
@@ -1993,11 +2016,97 @@
 
 done:
 	unuse_pack(&w_curs);
+}
 
-	*entries = bitmap_popcount(reuse);
-	if (!*entries) {
-		bitmap_free(reuse);
+static int bitmapped_pack_cmp(const void *va, const void *vb)
+{
+	const struct bitmapped_pack *a = va;
+	const struct bitmapped_pack *b = vb;
+
+	if (a->bitmap_pos < b->bitmap_pos)
 		return -1;
+	if (a->bitmap_pos > b->bitmap_pos)
+		return 1;
+	return 0;
+}
+
+void reuse_partial_packfile_from_bitmap(struct bitmap_index *bitmap_git,
+					struct bitmapped_pack **packs_out,
+					size_t *packs_nr_out,
+					struct bitmap **reuse_out,
+					int multi_pack_reuse)
+{
+	struct repository *r = the_repository;
+	struct bitmapped_pack *packs = NULL;
+	struct bitmap *result = bitmap_git->result;
+	struct bitmap *reuse;
+	size_t i;
+	size_t packs_nr = 0, packs_alloc = 0;
+	size_t word_alloc;
+	uint32_t objects_nr = 0;
+
+	assert(result);
+
+	load_reverse_index(r, bitmap_git);
+
+	if (bitmap_is_midx(bitmap_git)) {
+		for (i = 0; i < bitmap_git->midx->num_packs; i++) {
+			struct bitmapped_pack pack;
+			if (nth_bitmapped_pack(r, bitmap_git->midx, &pack, i) < 0) {
+				warning(_("unable to load pack: '%s', disabling pack-reuse"),
+					bitmap_git->midx->pack_names[i]);
+				free(packs);
+				return;
+			}
+
+			if (!pack.bitmap_nr)
+				continue;
+
+			if (!multi_pack_reuse && pack.bitmap_pos) {
+				/*
+				 * If we're only reusing a single pack, skip
+				 * over any packs which are not positioned at
+				 * the beginning of the MIDX bitmap.
+				 *
+				 * This is consistent with the existing
+				 * single-pack reuse behavior, which only reuses
+				 * parts of the MIDX's preferred pack.
+				 */
+				continue;
+			}
+
+			ALLOC_GROW(packs, packs_nr + 1, packs_alloc);
+			memcpy(&packs[packs_nr++], &pack, sizeof(pack));
+
+			objects_nr += pack.p->num_objects;
+
+			if (!multi_pack_reuse)
+				break;
+		}
+
+		QSORT(packs, packs_nr, bitmapped_pack_cmp);
+	} else {
+		ALLOC_GROW(packs, packs_nr + 1, packs_alloc);
+
+		packs[packs_nr].p = bitmap_git->pack;
+		packs[packs_nr].bitmap_nr = bitmap_git->pack->num_objects;
+		packs[packs_nr].bitmap_pos = 0;
+
+		objects_nr = packs[packs_nr++].bitmap_nr;
+	}
+
+	word_alloc = objects_nr / BITS_IN_EWORD;
+	if (objects_nr % BITS_IN_EWORD)
+		word_alloc++;
+	reuse = bitmap_word_alloc(word_alloc);
+
+	for (i = 0; i < packs_nr; i++)
+		reuse_partial_packfile_from_bitmap_1(bitmap_git, &packs[i], reuse);
+
+	if (bitmap_is_empty(reuse)) {
+		free(packs);
+		bitmap_free(reuse);
+		return;
 	}
 
 	/*
@@ -2005,9 +2114,9 @@
 	 * need to be handled separately.
 	 */
 	bitmap_and_not(result, reuse);
-	*packfile_out = pack;
+	*packs_out = packs;
+	*packs_nr_out = packs_nr;
 	*reuse_out = reuse;
-	return 0;
 }
 
 int bitmap_walk_contains(struct bitmap_index *bitmap_git,
diff --git a/pack-bitmap.h b/pack-bitmap.h
index 5273a6a..c7dea13 100644
--- a/pack-bitmap.h
+++ b/pack-bitmap.h
@@ -52,6 +52,15 @@
 
 struct bitmap_index;
 
+struct bitmapped_pack {
+	struct packed_git *p;
+
+	uint32_t bitmap_pos;
+	uint32_t bitmap_nr;
+
+	uint32_t pack_int_id; /* MIDX only */
+};
+
 struct bitmap_index *prepare_bitmap_git(struct repository *r);
 struct bitmap_index *prepare_midx_bitmap_git(struct multi_pack_index *midx);
 void count_bitmap_commit_list(struct bitmap_index *, uint32_t *commits,
@@ -68,11 +77,11 @@
 
 struct bitmap_index *prepare_bitmap_walk(struct rev_info *revs,
 					 int filter_provided_objects);
-uint32_t midx_preferred_pack(struct bitmap_index *bitmap_git);
-int reuse_partial_packfile_from_bitmap(struct bitmap_index *,
-				       struct packed_git **packfile,
-				       uint32_t *entries,
-				       struct bitmap **reuse_out);
+void reuse_partial_packfile_from_bitmap(struct bitmap_index *bitmap_git,
+					struct bitmapped_pack **packs_out,
+					size_t *packs_nr_out,
+					struct bitmap **reuse_out,
+					int multi_pack_reuse);
 int rebuild_existing_bitmaps(struct bitmap_index *, struct packing_data *mapping,
 			     kh_oid_map_t *reused_bitmaps, int show_progress);
 void free_bitmap_index(struct bitmap_index *);
diff --git a/pack-objects.c b/pack-objects.c
index f403ca6..a9d9855 100644
--- a/pack-objects.c
+++ b/pack-objects.c
@@ -151,6 +151,21 @@
 	init_recursive_mutex(&pdata->odb_lock);
 }
 
+void clear_packing_data(struct packing_data *pdata)
+{
+	if (!pdata)
+		return;
+
+	free(pdata->cruft_mtime);
+	free(pdata->in_pack);
+	free(pdata->in_pack_by_idx);
+	free(pdata->in_pack_pos);
+	free(pdata->index);
+	free(pdata->layer);
+	free(pdata->objects);
+	free(pdata->tree_depth);
+}
+
 struct object_entry *packlist_alloc(struct packing_data *pdata,
 				    const struct object_id *oid)
 {
diff --git a/pack-objects.h b/pack-objects.h
index 0d78db4..b9898a4 100644
--- a/pack-objects.h
+++ b/pack-objects.h
@@ -169,6 +169,7 @@
 };
 
 void prepare_packing_data(struct repository *r, struct packing_data *pdata);
+void clear_packing_data(struct packing_data *pdata);
 
 /* Protect access to object database */
 static inline void packing_data_lock(struct packing_data *pdata)
diff --git a/pack-revindex.c b/pack-revindex.c
index acf1dd9..a7624d8 100644
--- a/pack-revindex.c
+++ b/pack-revindex.c
@@ -520,19 +520,12 @@
 	return 0;
 }
 
-int midx_to_pack_pos(struct multi_pack_index *m, uint32_t at, uint32_t *pos)
+static int midx_key_to_pack_pos(struct multi_pack_index *m,
+				struct midx_pack_key *key,
+				uint32_t *pos)
 {
-	struct midx_pack_key key;
 	uint32_t *found;
 
-	if (!m->revindex_data)
-		BUG("midx_to_pack_pos: reverse index not yet loaded");
-	if (m->num_objects <= at)
-		BUG("midx_to_pack_pos: out-of-bounds object at %"PRIu32, at);
-
-	key.pack = nth_midxed_pack_int_id(m, at);
-	key.offset = nth_midxed_offset(m, at);
-	key.midx = m;
 	/*
 	 * The preferred pack sorts first, so determine its identifier by
 	 * looking at the first object in pseudo-pack order.
@@ -542,14 +535,43 @@
 	 * implicitly is preferred (and includes all its objects, since ties are
 	 * broken first by pack identifier).
 	 */
-	key.preferred_pack = nth_midxed_pack_int_id(m, pack_pos_to_midx(m, 0));
+	if (midx_preferred_pack(key->midx, &key->preferred_pack) < 0)
+		return error(_("could not determine preferred pack"));
 
-	found = bsearch(&key, m->revindex_data, m->num_objects,
-			sizeof(*m->revindex_data), midx_pack_order_cmp);
+	found = bsearch(key, m->revindex_data, m->num_objects,
+			sizeof(*m->revindex_data),
+			midx_pack_order_cmp);
 
 	if (!found)
-		return error("bad offset for revindex");
+		return -1;
 
 	*pos = found - m->revindex_data;
 	return 0;
 }
+
+int midx_to_pack_pos(struct multi_pack_index *m, uint32_t at, uint32_t *pos)
+{
+	struct midx_pack_key key;
+
+	if (!m->revindex_data)
+		BUG("midx_to_pack_pos: reverse index not yet loaded");
+	if (m->num_objects <= at)
+		BUG("midx_to_pack_pos: out-of-bounds object at %"PRIu32, at);
+
+	key.pack = nth_midxed_pack_int_id(m, at);
+	key.offset = nth_midxed_offset(m, at);
+	key.midx = m;
+
+	return midx_key_to_pack_pos(m, &key, pos);
+}
+
+int midx_pair_to_pack_pos(struct multi_pack_index *m, uint32_t pack_int_id,
+			  off_t ofs, uint32_t *pos)
+{
+	struct midx_pack_key key = {
+		.pack = pack_int_id,
+		.offset = ofs,
+		.midx = m,
+	};
+	return midx_key_to_pack_pos(m, &key, pos);
+}
diff --git a/pack-revindex.h b/pack-revindex.h
index 6dd47ef..422c248 100644
--- a/pack-revindex.h
+++ b/pack-revindex.h
@@ -142,4 +142,7 @@
  */
 int midx_to_pack_pos(struct multi_pack_index *midx, uint32_t at, uint32_t *pos);
 
+int midx_pair_to_pack_pos(struct multi_pack_index *midx, uint32_t pack_id,
+			  off_t ofs, uint32_t *pos);
+
 #endif
diff --git a/path.c b/path.c
index 67e2690..0fb5279 100644
--- a/path.c
+++ b/path.c
@@ -1588,7 +1588,5 @@
 REPO_GIT_PATH_FUNC(merge_rr, "MERGE_RR")
 REPO_GIT_PATH_FUNC(merge_mode, "MERGE_MODE")
 REPO_GIT_PATH_FUNC(merge_head, "MERGE_HEAD")
-REPO_GIT_PATH_FUNC(merge_autostash, "MERGE_AUTOSTASH")
-REPO_GIT_PATH_FUNC(auto_merge, "AUTO_MERGE")
 REPO_GIT_PATH_FUNC(fetch_head, "FETCH_HEAD")
 REPO_GIT_PATH_FUNC(shallow, "shallow")
diff --git a/path.h b/path.h
index 639372e..b3233c5 100644
--- a/path.h
+++ b/path.h
@@ -175,8 +175,6 @@
 const char *git_path_merge_rr(struct repository *r);
 const char *git_path_merge_mode(struct repository *r);
 const char *git_path_merge_head(struct repository *r);
-const char *git_path_merge_autostash(struct repository *r);
-const char *git_path_auto_merge(struct repository *r);
 const char *git_path_fetch_head(struct repository *r);
 const char *git_path_shallow(struct repository *r);
 
diff --git a/pathspec.c b/pathspec.c
index bb1efe1..2133b9f 100644
--- a/pathspec.c
+++ b/pathspec.c
@@ -109,16 +109,37 @@
 	{ PATHSPEC_ATTR,    '\0', "attr" },
 };
 
-static void prefix_magic(struct strbuf *sb, int prefixlen, unsigned magic)
+static void prefix_magic(struct strbuf *sb, int prefixlen,
+			 unsigned magic, const char *element)
 {
-	int i;
-	strbuf_addstr(sb, ":(");
-	for (i = 0; i < ARRAY_SIZE(pathspec_magic); i++)
-		if (magic & pathspec_magic[i].bit) {
-			if (sb->buf[sb->len - 1] != '(')
-				strbuf_addch(sb, ',');
-			strbuf_addstr(sb, pathspec_magic[i].name);
+	/* No magic was found in element, just add prefix magic */
+	if (!magic) {
+		strbuf_addf(sb, ":(prefix:%d)", prefixlen);
+		return;
+	}
+
+	/*
+	 * At this point, we know that parse_element_magic() was able
+	 * to extract some pathspec magic from element. So we know
+	 * element is correctly formatted in either shorthand or
+	 * longhand form
+	 */
+	if (element[1] != '(') {
+		/* Process an element in shorthand form (e.g. ":!/<match>") */
+		strbuf_addstr(sb, ":(");
+		for (int i = 0; i < ARRAY_SIZE(pathspec_magic); i++) {
+			if ((magic & pathspec_magic[i].bit) &&
+			    pathspec_magic[i].mnemonic) {
+				if (sb->buf[sb->len - 1] != '(')
+					strbuf_addch(sb, ',');
+				strbuf_addstr(sb, pathspec_magic[i].name);
+			}
 		}
+	} else {
+		/* For the longhand form, we copy everything up to the final ')' */
+		size_t len = strchr(element, ')') - element;
+		strbuf_add(sb, element, len);
+	}
 	strbuf_addf(sb, ",prefix:%d)", prefixlen);
 }
 
@@ -493,7 +514,7 @@
 		struct strbuf sb = STRBUF_INIT;
 
 		/* Preserve the actual prefix length of each pattern */
-		prefix_magic(&sb, prefixlen, element_magic);
+		prefix_magic(&sb, prefixlen, element_magic, elt);
 
 		strbuf_addstr(&sb, match);
 		item->original = strbuf_detach(&sb, NULL);
diff --git a/po/bg.po b/po/bg.po
index a3fc5b7..6b95add 100644
--- a/po/bg.po
+++ b/po/bg.po
@@ -1,7 +1,7 @@
 # Bulgarian translation of git po-file.
-# Copyright (C) 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023 Alexander Shopov <ash@kambanaria.org>.
+# Copyright (C) 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024 Alexander Shopov <ash@kambanaria.org>.
 # This file is distributed under the same license as the git package.
-# Alexander Shopov <ash@kambanaria.org>, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023.
+# Alexander Shopov <ash@kambanaria.org>, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024.
 # ========================
 # DICTIONARY TO MERGE IN GIT GUI
 # ------------------------
@@ -141,6 +141,8 @@
 # midx, multi-pack index - файл с индекса за множество пакети
 # overlay mode - припокриващ режим (при изтеглянe)
 # incremental file нарастващ файл
+# commit-graph граф с подавания
+# commit-graph chain верига на гра̀фа с подавания
 # split (commit-graphr) раздробен (граф с подавания)
 # clobber (a tag) презаписвам (етикет)
 # blame извеждане на авторство
@@ -207,6 +209,15 @@
 # master/main branch основен клон
 # unborn/orphan branch неродѐн клон (а не несъздаден) - клон без никакви подавания, включително и началното
 # parse анализ, анализирам
+# reinitialize repository зануляване на хранилището и инициализиране
+# replay изпълняване/прилагане наново
+# BTMP chunk откъс за побитова маска
+# OID fanout chunk откъс за разпределянето
+# OID lookup chunk  откъс за търсенето
+# autostash автоматично скатано
+# symref файл с указател (regular file that stores a string that begins with ref: refs/)
+#
+#
 #
 # ------------------------
 # „$var“ - може да не сработва за shell има gettext и eval_gettext - проверка - намират се лесно по „$
@@ -233,10 +244,10 @@
 # for i in `sort -u FILES`; do cnt=`grep $i FILES | wc -l`; echo $cnt $i ;done | sort -n
 msgid ""
 msgstr ""
-"Project-Id-Version: git 2.43\n"
+"Project-Id-Version: git 2.44\n"
 "Report-Msgid-Bugs-To: Git Mailing List <git@vger.kernel.org>\n"
-"POT-Creation-Date: 2023-11-17 15:49+0100\n"
-"PO-Revision-Date: 2023-11-18 13:23+0100\n"
+"POT-Creation-Date: 2024-02-16 09:33+0100\n"
+"PO-Revision-Date: 2024-02-16 09:38+0100\n"
 "Last-Translator: Alexander Shopov <ash@kambanaria.org>\n"
 "Language-Team: Bulgarian <dict@fsa-bg.org>\n"
 "Language: bg\n"
@@ -1691,6 +1702,10 @@
 msgstr "Неочаквана опция „--output“"
 
 #, c-format
+msgid "extra command line parameter '%s'"
+msgstr "излишна опция или стойност на командния ред: „%s“"
+
+#, c-format
 msgid "Unknown archive format '%s'"
 msgstr "Непознат формат на архив: „%s“"
 
@@ -1738,6 +1753,14 @@
 "„GIT_ATTR_SOURCE“"
 
 #, c-format
+msgid "unable to stat '%s'"
+msgstr "„stat“ не може да се изпълни върху „%s“"
+
+#, c-format
+msgid "unable to read %s"
+msgstr "обектът „%s“ не може да бъде прочетен"
+
+#, c-format
 msgid "Badly quoted content in file '%s': %s"
 msgstr "Неправилно цитирано съдържание във файла „%s“: %s"
 
@@ -3074,12 +3097,13 @@
 msgstr "обектът-подаване за „%s“ не може да се открие"
 
 #, c-format
-msgid ""
-"the branch '%s' is not fully merged.\n"
-"If you are sure you want to delete it, run 'git branch -D %s'"
+msgid "the branch '%s' is not fully merged"
+msgstr "клонът „%s“ не е слят напълно"
+
+#, c-format
+msgid "If you are sure you want to delete it, run 'git branch -D %s'"
 msgstr ""
-"клонът „%s“ не е слят напълно.  Ако сте сигурни, че искате\n"
-"да го изтриете, изпълнете:\n"
+"Ако сте сигурни, че искате да го изтриете, изпълнете:\n"
 "\n"
 "    git branch -D %s"
 
@@ -3126,7 +3150,7 @@
 
 #, c-format
 msgid "HEAD (%s) points outside of refs/heads/"
-msgstr "„HEAD“ (%s) сочи извън директорията „refs/heads“"
+msgstr "„HEAD“ (%s) сочи извън директорията „refs/heads/“"
 
 #, c-format
 msgid "branch %s is being rebased at %s"
@@ -4138,8 +4162,8 @@
 msgid "new-branch"
 msgstr "НОВ_КЛОН"
 
-msgid "new unparented branch"
-msgstr "нов клон без родител"
+msgid "new unborn branch"
+msgstr "нов неродѐн клон"
 
 msgid "update ignored files (default)"
 msgstr "обновяване на игнорираните файлове (стандартно)"
@@ -4392,9 +4416,6 @@
 "което изисква някоя от опциите „-i“, „-n“ или „-f“.  Няма да се извърши "
 "изчистване"
 
-msgid "-x and -X cannot be used together"
-msgstr "опциите „-x“ и „-X“ са несъвместими"
-
 msgid "git clone [<options>] [--] <repo> [<dir>]"
 msgstr "git clone [ОПЦИЯ…] [--] ХРАНИЛИЩЕ [ДИРЕКТОРИЯ]"
 
@@ -4486,6 +4507,9 @@
 msgid "separate git dir from working tree"
 msgstr "отделна СЛУЖЕБНА_ДИРЕКТОРИЯ за git извън работното дърво"
 
+msgid "specify the reference format to use"
+msgstr "указване на форма̀та за указател"
+
 msgid "key=value"
 msgstr "КЛЮЧ=СТОЙНОСТ"
 
@@ -4613,12 +4637,9 @@
 msgid "You must specify a repository to clone."
 msgstr "Трябва да укажете кое хранилище искате да клонирате."
 
-msgid ""
-"--bundle-uri is incompatible with --depth, --shallow-since, and --shallow-"
-"exclude"
-msgstr ""
-"опцията „--bundle-uri“ е несъвместима с „--depth“, „--shallow-since“ и „--"
-"shallow-exclude“"
+#, c-format
+msgid "unknown ref storage format '%s'"
+msgstr "непознат формат на съхранение: „%s“"
 
 #, c-format
 msgid "repository '%s' does not exist"
@@ -4756,7 +4777,7 @@
 "--stdin-commits]\n"
 "                       [--changed-paths] [--[no-]max-new-filters <n>] [--"
 "[no-]progress]\n"
-"                       <split options>"
+"                       <split-options>"
 msgstr ""
 "git commit-graph write [--object-dir ДИРЕКТОРИЯ] [--append]\n"
 "                       [--split[=СТРАТЕГИЯ]] [--reachable|--stdin-packs|--"
@@ -7145,6 +7166,10 @@
 msgstr "дървото не може да бъде прочетено (%s)"
 
 #, c-format
+msgid "unable to read tree %s"
+msgstr "дървото не може да бъде прочетено: %s"
+
+#, c-format
 msgid "unable to grep from object of type %s"
 msgstr "не може да се изпълни „grep“ от обект от вида %s"
 
@@ -7566,10 +7591,6 @@
 "СЪВПАДЕНИЕ НА СТОЙНОСТИТЕ ЗА СУМИТЕ ЗА SHA1: „%s“ НА ДВА РАЗЛИЧНИ ОБЕКТА!"
 
 #, c-format
-msgid "unable to read %s"
-msgstr "обектът „%s“ не може да бъде прочетен"
-
-#, c-format
 msgid "cannot read existing object info %s"
 msgstr "съществуващият обект в „%s“ не може да бъде прочетен"
 
@@ -7711,6 +7732,7 @@
 msgid ""
 "git init [-q | --quiet] [--bare] [--template=<template-directory>]\n"
 "         [--separate-git-dir <git-dir>] [--object-format=<format>]\n"
+"         [--ref-format=<format>]\n"
 "         [-b <branch-name> | --initial-branch=<branch-name>]\n"
 "         [--shared[=<permissions>]] [<directory>]"
 msgstr ""
@@ -8449,6 +8471,14 @@
 "git merge-file [ОПЦИЯ…] [-L ИМЕ_1 [-L ОРИГИНАЛ [-L ИМЕ_2]]] ФАЙЛ_1 ОРИГ_ФАЙЛ "
 "ФАЙЛ_2"
 
+msgid ""
+"option diff-algorithm accepts \"myers\", \"minimal\", \"patience\" and "
+"\"histogram\""
+msgstr ""
+"опцията приема следните варианти за алгоритъм за разлики: „myers“ (по "
+"Майерс), „minimal“ (минимизиране на разликите), „patience“ (пасианс) и "
+"„histogram“ (хистограмен)"
+
 msgid "send results to standard output"
 msgstr "извеждане на резултатите на стандартния изход"
 
@@ -8470,6 +8500,12 @@
 msgid "for conflicts, use a union version"
 msgstr "при конфликти да се ползва обединена версия"
 
+msgid "<algorithm>"
+msgstr "АЛГОРИТЪМ"
+
+msgid "choose a diff algorithm"
+msgstr "избор на АЛГОРИТЪМа за разлики"
+
 msgid "for conflicts, use this marker size"
 msgstr "при конфликти да се ползва маркер с такъв БРОЙ знаци"
 
@@ -8561,9 +8597,6 @@
 msgid "unknown strategy option: -X%s"
 msgstr "непозната опция за стратегия: -X%s"
 
-msgid "--merge-base is incompatible with --stdin"
-msgstr "опциите „--merge-base“ и „--stdin“ са несъвместими"
-
 #, c-format
 msgid "malformed input line: '%s'."
 msgstr "входен ред с неправилен формат: „%s“."
@@ -8606,7 +8639,7 @@
 msgid "add (at most <n>) entries from shortlog to merge commit message"
 msgstr ""
 "добавяне (на максимум такъв БРОЙ) записи от съкратения журнал в съобщението "
-"за подаване"
+"за подаване със сливане"
 
 msgid "create a single commit instead of doing a merge"
 msgstr "създаване на едно подаване вместо извършване на сливане"
@@ -9523,6 +9556,11 @@
 msgstr "неправилен брой разлики"
 
 #, c-format
+msgid "invalid pack.allowPackReuse value: '%s'"
+msgstr ""
+"неправилна стойност за преизползването на пакети „pack.allowPackReuse“: „%s“"
+
+#, c-format
 msgid ""
 "value of uploadpack.blobpackfileuri must be of the form '<object-hash> <pack-"
 "hash> <uri>' (got '%s')"
@@ -9795,10 +9833,10 @@
 #, c-format
 msgid ""
 "Total %<PRIu32> (delta %<PRIu32>), reused %<PRIu32> (delta %<PRIu32>), pack-"
-"reused %<PRIu32>"
+"reused %<PRIu32> (from %<PRIuMAX>)"
 msgstr ""
 "Общо: %<PRIu32> (разлики: %<PRIu32>), преизползвани: %<PRIu32> (разлики: "
-"%<PRIu32>), преизползвани при пакетиране: %<PRIu32>"
+"%<PRIu32>), преизползвани при пакетиране: %<PRIu32> (от %<PRIuMAX>)"
 
 msgid ""
 "'git pack-redundant' is nominated for removal.\n"
@@ -10792,13 +10830,6 @@
 msgstr "опцията „C“ очаква число за аргумент"
 
 msgid ""
-"apply options are incompatible with rebase.autoSquash.  Consider adding --no-"
-"autosquash"
-msgstr ""
-"опциите за прилагане са несъвместими с „rebase.autoSquash“.  Пробвайте да "
-"добавите опцията „--no-autosquash“"
-
-msgid ""
 "apply options are incompatible with rebase.rebaseMerges.  Consider adding --"
 "no-rebase-merges"
 msgstr ""
@@ -11823,6 +11854,76 @@
 msgid "only one pattern can be given with -l"
 msgstr "опцията „-l“ приема точно един шаблон"
 
+msgid "need some commits to replay"
+msgstr "необходимо е да има подавания за прилагане отново"
+
+msgid "--onto and --advance are incompatible"
+msgstr "опциите „--onto“ и „--advance“ са несъвместими"
+
+msgid "all positive revisions given must be references"
+msgstr "всички зададени положителни версии трябва да са указатели"
+
+msgid "argument to --advance must be a reference"
+msgstr "аргументът към „--advance“ трябва да е указател"
+
+msgid ""
+"cannot advance target with multiple sources because ordering would be ill-"
+"defined"
+msgstr ""
+"цели с множество източници не може да се придвижат напред, защото подредбата "
+"не е добре дефинирана"
+
+msgid ""
+"cannot implicitly determine whether this is an --advance or --onto operation"
+msgstr ""
+"не може да се определи дали това действие е за „--advance“ или „--onto“"
+
+msgid ""
+"cannot advance target with multiple source branches because ordering would "
+"be ill-defined"
+msgstr ""
+"цели с множество клони-източници не може да се придвижат напред, защото "
+"подредбата не е добре дефинирана"
+
+msgid "cannot implicitly determine correct base for --onto"
+msgstr "правилната база за „--onto“ не може да се определи"
+
+msgid ""
+"(EXPERIMENTAL!) git replay ([--contained] --onto <newbase> | --advance "
+"<branch>) <revision-range>..."
+msgstr ""
+"(ЕКСПЕРИМЕНТАЛНО!) git replay ([--contained] --onto НОВА_БАЗА | --advance "
+"КЛОН) ДИАПАЗОН_ПОДАВАНИЯ…"
+
+msgid "make replay advance given branch"
+msgstr "прилагането наново придвижва дадения КЛОН напред"
+
+msgid "replay onto given commit"
+msgstr "прилагането наново върху даденото ПОДАВАНЕ"
+
+msgid "advance all branches contained in revision-range"
+msgstr "придвижване на всички КЛОНи в ДИАПАЗОНа_ПОДАВАНИЯ"
+
+msgid "option --onto or --advance is mandatory"
+msgstr "изисква се някоя от опциите „--onto“ или „--advance“"
+
+#, c-format
+msgid ""
+"some rev walking options will be overridden as '%s' bit in 'struct rev_info' "
+"will be forced"
+msgstr ""
+"някои опции за проследяване на указатели ще бъдат променени, защото битът "
+"„%s“ в структурата „struct rev_info“ има превес"
+
+msgid "error preparing revisions"
+msgstr "грешка при подготовката на версии"
+
+msgid "replaying down to root commit is not supported yet!"
+msgstr "не се поддържа прилагане наново и на началното подаване!"
+
+msgid "replaying merge commits is not supported yet!"
+msgstr "не се поддържа прилагане наново и на подавания със сливане!"
+
 msgid ""
 "git rerere [clear | forget <pathspec>... | diff | status | remaining | gc]"
 msgstr "git rerere [clear|forget ПЪТ…|diff|status|remaining|gc]"
@@ -12030,15 +12131,6 @@
 msgid "unknown mode for --abbrev-ref: %s"
 msgstr "непознат режим за „--abbrev-ref“: „%s“"
 
-msgid "--exclude-hidden cannot be used together with --branches"
-msgstr "опциите „--exclude-hidden“ и „--branches“ са несъвместими"
-
-msgid "--exclude-hidden cannot be used together with --tags"
-msgstr "опциите „--exclude-hidden“ и „--tags“ са несъвместими"
-
-msgid "--exclude-hidden cannot be used together with --remotes"
-msgstr "опциите „--exclude-hidden“ и „--remotes“ са несъвместими"
-
 msgid "this operation must be run in a work tree"
 msgstr "тази команда трябва да се изпълни в работно дърво"
 
@@ -12242,7 +12334,7 @@
 msgstr "git shortlog [ОПЦИЯ…] [ДИАПАЗОН_НА_ВЕРСИИТЕ] [[--] [ПЪТ…]]"
 
 msgid "git log --pretty=short | git shortlog [<options>]"
-msgstr "git log --pretty=short|git shortlog [ОПЦИЯ…]"
+msgstr "git log --pretty=short | git shortlog [ОПЦИЯ…]"
 
 msgid "using multiple --group options with stdin is not supported"
 msgstr "повече от една опции „--group“ са несъвместими със стандартния вход"
@@ -12455,10 +12547,6 @@
 "извеждане на указателите приети от стандартния вход, които липсват в "
 "локалното хранилище"
 
-#, c-format
-msgid "only one of '%s', '%s' or '%s' can be given"
-msgstr "опциите „%s“, „%s“ и „%s“ са несъвместими"
-
 msgid ""
 "git sparse-checkout (init | list | set | add | reapply | disable | check-"
 "rules) [<options>]"
@@ -13951,7 +14039,7 @@
 
 #, c-format
 msgid ""
-"If you meant to create a worktree containing a new orphan branch\n"
+"If you meant to create a worktree containing a new unborn branch\n"
 "(branch with no commits) for this repository, you can do so\n"
 "using the --orphan flag:\n"
 "\n"
@@ -13965,7 +14053,7 @@
 
 #, c-format
 msgid ""
-"If you meant to create a worktree containing a new orphan branch\n"
+"If you meant to create a worktree containing a new unborn branch\n"
 "(branch with no commits) for this repository, you can do so\n"
 "using the --orphan flag:\n"
 "\n"
@@ -14035,6 +14123,10 @@
 msgstr "инициализация"
 
 #, c-format
+msgid "could not find created worktree '%s'"
+msgstr "създаденото в „%s“ работно дърво липсва"
+
+#, c-format
 msgid "Preparing worktree (new branch '%s')"
 msgstr "Приготвяне на работното дърво (нов клон „%s“)"
 
@@ -14076,10 +14168,6 @@
 "доставете\n"
 "обектите от отдалеченото хранилище"
 
-#, c-format
-msgid "'%s' and '%s' cannot be used together"
-msgstr "опциите „%s“ и „%s“ са несъвместими"
-
 msgid "checkout <branch> even if already checked out in other worktree"
 msgstr "Изтегляне КЛОНа, дори и да е изтеглен в друго работно дърво"
 
@@ -14089,7 +14177,7 @@
 msgid "create or reset a branch"
 msgstr "създаване или зануляване на клони"
 
-msgid "create unborn/orphaned branch"
+msgid "create unborn branch"
 msgstr "създаване на неродѐн клон"
 
 msgid "populate the new working tree"
@@ -14112,11 +14200,8 @@
 msgstr "опциите „%s“, „%s“ и „%s“ са несъвместими"
 
 #, c-format
-msgid "options '%s', and '%s' cannot be used together"
-msgstr "опциите „%s“ и „%s“ са несъвместими"
-
-msgid "<commit-ish>"
-msgstr "ПОДАВАНЕ"
+msgid "option '%s' and commit-ish cannot be used together"
+msgstr "опциите „%s“ и указателите към подавания са несъвместими"
 
 msgid "added with --lock"
 msgstr "добавена с „--lock“"
@@ -14753,6 +14838,11 @@
 msgid "Create, list, delete refs to replace objects"
 msgstr "Създаване, извеждане, изтриване на указатели за замяна на обекти"
 
+msgid "EXPERIMENTAL: Replay commits on a new base, works with bare repos too"
+msgstr ""
+"ЕКСПЕРИМЕНТАЛНО: прилагане на подавания върху нова база, работи и с голи "
+"хранилища"
+
 msgid "Generates a summary of pending changes"
 msgstr "Обобщение на предстоящите промѐни"
 
@@ -14991,6 +15081,36 @@
 msgid "commit-graph file is too small"
 msgstr "файлът за гра̀фа с подаванията е твърде малък"
 
+msgid "commit-graph oid fanout chunk is wrong size"
+msgstr "откъсът за разпределянето в гра̀фа с подаванията е прекалено малък"
+
+msgid "commit-graph fanout values out of order"
+msgstr ""
+"стойностите за откъс за разпределяне в гра̀фа с подаванията не са подредени"
+
+msgid "commit-graph OID lookup chunk is the wrong size"
+msgstr "откъсът за търсенето в гра̀фа с подаванията е прекалено малък"
+
+msgid "commit-graph commit data chunk is wrong size"
+msgstr ""
+"откъсът за данните за подаванията в гра̀фа с подаванията е с неправилен размер"
+
+msgid "commit-graph generations chunk is wrong size"
+msgstr "откъсът за поколенията в гра̀фа с подаванията е с неправилен размер"
+
+msgid "commit-graph changed-path index chunk is too small"
+msgstr ""
+"откъсът за индекса с промѐни в пътищата в гра̀фа с подаванията е прекалено "
+"малък"
+
+#, c-format
+msgid ""
+"ignoring too-small changed-path chunk (%<PRIuMAX> < %<PRIuMAX>) in commit-"
+"graph file"
+msgstr ""
+"прескачане на прекалено малък откъс за индекса с промѐни (%<PRIuMAX> < "
+"%<PRIuMAX>) в пътищата в гра̀фа с подаванията"
+
 #, c-format
 msgid "commit-graph signature %X does not match signature %X"
 msgstr "отпечатъкът на гра̀фа с подаванията %X не съвпада с %X"
@@ -15007,6 +15127,19 @@
 msgid "commit-graph file is too small to hold %u chunks"
 msgstr "файлът с гра̀фа на подаванията е твърде малък, за да съдържа %u откъси"
 
+msgid "commit-graph required OID fanout chunk missing or corrupted"
+msgstr ""
+"откъсът за разпределянето необходимо на гра̀фа с подаванията липсва или е "
+"повреден"
+
+msgid "commit-graph required OID lookup chunk missing or corrupted"
+msgstr ""
+"откъсът за търсенето необходимо на гра̀фа с подаванията липсва или е повреден"
+
+msgid "commit-graph required commit data chunk missing or corrupted"
+msgstr ""
+"откъсът за данните необходими на гра̀фа с подаванията липсва или е повреден"
+
 msgid "commit-graph has no base graphs chunk"
 msgstr "базовият откъс липсва в гра̀фа с подаванията"
 
@@ -15020,6 +15153,9 @@
 msgid "commit count in base graph too high: %<PRIuMAX>"
 msgstr "броят подавания в основния граф е прекалено голям: %<PRIuMAX>"
 
+msgid "commit-graph chain file too small"
+msgstr "веригата на гра̀фа с подаванията е твърде малка"
+
 #, c-format
 msgid "invalid commit-graph chain: line '%s' not a hash"
 msgstr ""
@@ -15038,12 +15174,16 @@
 
 msgid "commit-graph requires overflow generation data but has none"
 msgstr ""
-"графът с подаванията изисква генериране на данни за отместването, но такива "
-"липсват"
+"графът с подаванията изисква данни за прелелите поколения, но такива липсват"
 
 msgid "commit-graph overflow generation data is too small"
 msgstr "прекалено малко данни за прелелите поколения в гра̀фа с подаванията"
 
+msgid "commit-graph extra-edges pointer out of bounds"
+msgstr ""
+"указателят за допълнителните ребра в гра̀фа с подаванията е извън позволения "
+"диапазон"
+
 msgid "Loading known commits in commit graph"
 msgstr "Зареждане на познатите подавания в гра̀фа с подаванията"
 
@@ -16245,6 +16385,10 @@
 msgstr "Непозната стойност „%s“ за настройката „diff.submodule“"
 
 #, c-format
+msgid "unknown value for config '%s': %s"
+msgstr "непозната стойност за настройката „%s“: „%s“"
+
+#, c-format
 msgid ""
 "Found errors in 'diff.dirstat' config variable:\n"
 "%s"
@@ -16323,14 +16467,6 @@
 msgid "invalid mode '%s' in --color-moved-ws"
 msgstr "неправилен режим „%s“ за „ --color-moved-ws“"
 
-msgid ""
-"option diff-algorithm accepts \"myers\", \"minimal\", \"patience\" and "
-"\"histogram\""
-msgstr ""
-"опцията приема следните варианти за алгоритъм за разлики: „myers“ (по "
-"Майерс), „minimal“ (минимизиране на разликите), „patience“ (пасианс) и "
-"„histogram“ (хистограмен)"
-
 #, c-format
 msgid "invalid argument to %s"
 msgstr "неправилен аргумент към „%s“"
@@ -16374,8 +16510,8 @@
 msgid "output only the last line of --stat"
 msgstr "извеждане само на последния ред на „--stat“"
 
-msgid "<param1,param2>..."
-msgstr "ПАРАМЕТЪР_1, ПАРАМЕТЪР_2, …"
+msgid "<param1>,<param2>..."
+msgstr "ПАРАМЕТЪР_1,ПАРАМЕТЪР_2,…"
 
 msgid ""
 "output the distribution of relative amount of changes for each sub-directory"
@@ -16384,8 +16520,8 @@
 msgid "synonym for --dirstat=cumulative"
 msgstr "псевдоним на „--dirstat=cumulative“"
 
-msgid "synonym for --dirstat=files,param1,param2..."
-msgstr "псевдоним на „--dirstat=ФАЙЛ…,ПАРАМЕТЪР_1,ПАРАМЕТЪР_2,…“"
+msgid "synonym for --dirstat=files,<param1>,<param2>..."
+msgstr "псевдоним на „--dirstat=files,ПАРАМЕТЪР_1,ПАРАМЕТЪР_2,…“"
 
 msgid "warn if changes introduce conflict markers or whitespace errors"
 msgstr ""
@@ -16569,12 +16705,6 @@
 msgid "generate diff using the \"histogram diff\" algorithm"
 msgstr "разлика по хистограмния алгоритъм"
 
-msgid "<algorithm>"
-msgstr "АЛГОРИТЪМ"
-
-msgid "choose a diff algorithm"
-msgstr "избор на АЛГОРИТЪМа за разлики"
-
 msgid "<text>"
 msgstr "ТЕКСТ"
 
@@ -18093,6 +18223,13 @@
 msgstr ""
 "неправилен размер на откъса за разпределянето в индекса за множество пакети"
 
+#, c-format
+msgid ""
+"oid fanout out of order: fanout[%d] = %<PRIx32> > %<PRIx32> = fanout[%d]"
+msgstr ""
+"неправилна подредба на откъси (OID fanout): fanout[%d] = %<PRIx32> > "
+"%<PRIx32> = fanout[%d]"
+
 msgid "multi-pack-index OID lookup chunk is the wrong size"
 msgstr "неправилен размер на откъса за търсенето в индекса за множество пакети"
 
@@ -18149,6 +18286,14 @@
 msgstr ""
 "неправилен идентификатор на пакет (pack-int-id): %u (от общо %u пакети)"
 
+msgid "MIDX does not contain the BTMP chunk"
+msgstr ""
+"липсва откъс за побитова маска във файла за индекса за множество пакети"
+
+#, c-format
+msgid "could not load bitmapped pack %<PRIu32>"
+msgstr "пакетът за битови маски %<PRIu32> не може да се отвори"
+
 msgid "multi-pack-index stores a 64-bit offset, but off_t is too small"
 msgstr ""
 "индексът за множество пакети съдържа 64-битови отмествания, но размерът на "
@@ -18241,13 +18386,6 @@
 msgid "Looking for referenced packfiles"
 msgstr "Търсене на указаните пакетни файлове"
 
-#, c-format
-msgid ""
-"oid fanout out of order: fanout[%d] = %<PRIx32> > %<PRIx32> = fanout[%d]"
-msgstr ""
-"неправилна подредба на откъси (OID fanout): fanout[%d] = %<PRIx32> > "
-"%<PRIx32> = fanout[%d]"
-
 msgid "the midx contains no oid"
 msgstr "във файла с индекса за множество пакети няма идентификатори на обекти"
 
@@ -18792,6 +18930,11 @@
 msgid "could not open pack %s"
 msgstr "пакетът „%s“ не може да се отвори"
 
+msgid "could not determine MIDX preferred pack"
+msgstr ""
+"предпочитаният пакет за файла с индекса за множество пакети не може да се "
+"определи"
+
 #, c-format
 msgid "preferred pack (%s) is invalid"
 msgstr "предпочитаният пакет „%s“ е неправилен"
@@ -18819,6 +18962,11 @@
 "маска на подаване „%s“"
 
 #, c-format
+msgid "unable to load pack: '%s', disabling pack-reuse"
+msgstr ""
+"пакетът не може да се зареди: „%s“, преизползването на пакети се изключва"
+
+#, c-format
 msgid "object '%s' not found in type bitmaps"
 msgstr "обектът „%s“ липсва в битовата маска на видовете"
 
@@ -18917,6 +19065,9 @@
 msgstr ""
 "неправилен размер на откъс за обратен индекс в индекса за множество пакети"
 
+msgid "could not determine preferred pack"
+msgstr "предпочитаният пакет не може да се определи"
+
 msgid "cannot both write and verify reverse index"
 msgstr "обратният индекс не може едновременно да се записва и да се проверява"
 
@@ -18988,10 +19139,6 @@
 "„%s“ очаква неотрицателно цяло число, евентуално със суфикс „k“/„m“/„g“"
 
 #, c-format
-msgid "%s is incompatible with %s"
-msgstr "опциите „%s“ и „%s“ са несъвместими"
-
-#, c-format
 msgid "ambiguous option: %s (could be --%s%s or --%s%s)"
 msgstr "нееднозначна опция: „%s“ (може да е „--%s%s“ или „--%s%s“)"
 
@@ -19316,10 +19463,6 @@
 msgstr "„%s“ не може да се добави в индекса"
 
 #, c-format
-msgid "unable to stat '%s'"
-msgstr "„stat“ не може да се изпълни върху „%s“"
-
-#, c-format
 msgid "'%s' appears as both a file and as a directory"
 msgstr "„%s“ съществува и като файл, и като директория"
 
@@ -19864,7 +20007,7 @@
 
 #, c-format
 msgid "ignoring dangling symref %s"
-msgstr "игнориране на указател на обект извън клон „%s“"
+msgstr "игнориране на файл с указател на обект извън клон „%s“"
 
 #, c-format
 msgid "log for ref %s has gap after %s"
@@ -19905,10 +20048,6 @@
 msgstr "невъзможно е едновременно да се обработват „%s“ и „%s“"
 
 #, c-format
-msgid "could not remove reference %s"
-msgstr "Указателят „%s“ не може да бъде изтрит"
-
-#, c-format
 msgid "could not delete reference %s: %s"
 msgstr "Указателят „%s“ не може да бъде изтрит: %s"
 
@@ -21333,6 +21472,9 @@
 msgid "Autostash exists; creating a new stash entry."
 msgstr "Вече има запис за автоматично скатано, затова се създава нов запис."
 
+msgid "autostash reference is a symref"
+msgstr "указателят за автоматично скатано e файл с указател"
+
 msgid "could not detach HEAD"
 msgstr "указателят „HEAD“ не може да се отдели"
 
@@ -21657,6 +21799,10 @@
 msgstr "неправилно име на първоначалния клон: „%s“"
 
 #, c-format
+msgid "re-init: ignored --initial-branch=%s"
+msgstr "re-init: „--initial-branch=%s“ се пропуска"
+
+#, c-format
 msgid "unable to handle file type %d"
 msgstr "файлове от вид %d не се поддържат"
 
@@ -21666,18 +21812,19 @@
 
 msgid "attempt to reinitialize repository with different hash"
 msgstr ""
-"опит за повторно задаване на първото подаване в хранилището с различна "
-"контролна сума"
+"опит за зануляване на хранилището и инициализиране с различна контролна сума"
+
+msgid ""
+"attempt to reinitialize repository with different reference storage format"
+msgstr ""
+"опит за зануляване на хранилището и инициализиране с различен формат на "
+"съхраняване"
 
 #, c-format
 msgid "%s already exists"
 msgstr "Директорията „%s“ вече съществува"
 
 #, c-format
-msgid "re-init: ignored --initial-branch=%s"
-msgstr "re-init: „--initial-branch=%s“ се пропуска"
-
-#, c-format
 msgid "Reinitialized existing shared Git repository in %s%s\n"
 msgstr ""
 "Инициализиране наново на съществуващо, споделено хранилище на Git в „%s%s“\n"
@@ -21948,12 +22095,6 @@
 "какъв брой записи в кеша на обектите-дървета да се отбележат като невалидни "
 "(стандартно е 0)"
 
-msgid "unhandled options"
-msgstr "неподдържани опции"
-
-msgid "error preparing revisions"
-msgstr "грешка при подготовката на версии"
-
 #, c-format
 msgid "commit %s is not marked reachable"
 msgstr "подаването „%s“ не е отбелязано като достижимо"
@@ -22110,9 +22251,6 @@
 msgid "invalid remote service path"
 msgstr "неправилен път на отдалечената услуга"
 
-msgid "operation not supported by protocol"
-msgstr "опцията не се поддържа от протокола"
-
 #, c-format
 msgid "can't connect to subservice %s"
 msgstr "неуспешно свързване към подуслугата „%s“"
@@ -22248,10 +22386,6 @@
 msgstr "протокол версия 2 все още не се поддържа"
 
 #, c-format
-msgid "unknown value for config '%s': %s"
-msgstr "непозната стойност за настройката „%s“: „%s“"
-
-#, c-format
 msgid "transport '%s' not allowed"
 msgstr "преносът по „%s“ не е позволен"
 
@@ -22304,6 +22438,9 @@
 "спъсъкът с адреси на пратки обявени за налични от сървъра не може да се "
 "получи "
 
+msgid "operation not supported by protocol"
+msgstr "опцията не се поддържа от протокола"
+
 msgid "too-short tree object"
 msgstr "прекалено кратък обект-дърво"
 
@@ -23147,6 +23284,10 @@
 msgid "cannot %s: Your index contains uncommitted changes."
 msgstr "не може да извършите „%s“, защото в индекса има неподадени промѐни."
 
+#, c-format
+msgid "unknown style '%s' given for '%s'"
+msgstr "непознат стил „%s“ за „%s“"
+
 msgid ""
 "Error: Your local changes to the following files would be overwritten by "
 "merge"
diff --git a/po/ca.po b/po/ca.po
index d1a4e56..bcb4da8 100644
--- a/po/ca.po
+++ b/po/ca.po
@@ -1,7 +1,7 @@
 # Catalan translations for Git.
 # This file is distributed under the same license as the Git package.
 # Alex Henrie <alexhenrie24@gmail.com>, 2014-2016.
-# Jordi Mas i Hernàndez <jmas@softcatala.org>, 2016-2023
+# Jordi Mas i Hernàndez <jmas@softcatala.org>, 2016-2024
 #
 # Terminologia
 #
@@ -56,6 +56,7 @@
 #   Anglès           |  Català
 #   -----------------+---------------------------------
 #   blame            |  «blame»
+#   fanout           |  «fanout»
 #   HEAD             |  HEAD (f, la branca actual) - (no s'apostrofa)
 #   cherry pick      |  «cherry pick»
 #   promisor         |  «promisor»
@@ -70,14 +71,14 @@
 #
 # Criteris
 #   - Mantingueu en anglès les referències a seccions de la documentació, ja que no està traduïda.
-#   - Usem la convenció valenciana per a «per / per a», que inclou l'ús de «per a» davant d'infintiu
+#   - Usem la convenció valenciana per a «per / per a», que inclou l'ús de «per a» davant d'infinitiu
 #
 msgid ""
 msgstr ""
 "Project-Id-Version: Git\n"
 "Report-Msgid-Bugs-To: Git Mailing List <git@vger.kernel.org>\n"
-"POT-Creation-Date: 2023-11-13 18:55+0100\n"
-"PO-Revision-Date: 2023-11-13 19:00-0600\n"
+"POT-Creation-Date: 2024-02-16 07:14+0100\n"
+"PO-Revision-Date: 2024-02-16 07:16+0100\n"
 "Last-Translator: Jordi Mas i Hernàndez <jmas@softcatala.org>\n"
 "Language-Team: Catalan\n"
 "Language: ca\n"
@@ -592,6 +593,7 @@
 #. Consider translating (saying "no" discards!) as
 #. (saying "n" for "no" discards!) if the translation
 #. of the word "no" does not start with n.
+#.
 msgid ""
 "Your edited hunk does not apply. Edit again (saying \"no\" discards!) [y/n]? "
 msgstr ""
@@ -1503,6 +1505,10 @@
 msgstr "Opció inesperada --output"
 
 #, c-format
+msgid "extra command line parameter '%s'"
+msgstr "paràmetre extra de la línia d'ordres «%s»"
+
+#, c-format
 msgid "Unknown archive format '%s'"
 msgstr "Format d'arxiu desconegut «%s»"
 
@@ -1548,6 +1554,14 @@
 msgstr "--attr-source incorrecte o GIT_ATTR_SOURCE"
 
 #, c-format
+msgid "unable to stat '%s'"
+msgstr "no s'ha pogut fer «stat» a «%s»"
+
+#, c-format
+msgid "unable to read %s"
+msgstr "no s'ha pogut llegir %s"
+
+#, c-format
 msgid "Badly quoted content in file '%s': %s"
 msgstr "Comentari amb cometes errònies en el fitxer «%s»: %s"
 
@@ -1643,6 +1657,7 @@
 
 #. TRANSLATORS: the last %s will be replaced with "(roughly %d
 #. steps)" translation.
+#.
 #, c-format
 msgid "Bisecting: %d revision left to test after this %s\n"
 msgid_plural "Bisecting: %d revisions left to test after this %s\n"
@@ -1728,17 +1743,20 @@
 #. TRANSLATORS: This is a line listing a remote with duplicate
 #. refspecs in the advice message below. For RTL languages you'll
 #. probably want to swap the "%s" and leading "  " space around.
+#.
 #. #-#-#-#-#  object-name.c.po  #-#-#-#-#
 #. TRANSLATORS: This is line item of ambiguous object output
 #. from describe_ambiguous_object() above. For RTL languages
 #. you'll probably want to swap the "%s" and leading " " space
 #. around.
+#.
 #, c-format
 msgid "  %s\n"
 msgstr "  %s\n"
 
 #. TRANSLATORS: The second argument is a \n-delimited list of
 #. duplicate refspecs, composed above.
+#.
 #, c-format
 msgid ""
 "There are multiple remotes whose fetch refspecs map to the remote\n"
@@ -2143,6 +2161,7 @@
 #. TRANSLATORS: Make sure to include [y], [n], [e], [v] and [a]
 #. in your translation. The program will only accept English
 #. input at this point.
+#.
 #, c-format
 msgid "Apply? [y]es/[n]o/[e]dit/[v]iew patch/[a]ccept all: "
 msgstr ""
@@ -2480,6 +2499,7 @@
 #. TRANSLATORS: Make sure to include [Y] and [n] in your
 #. translation. The program will only accept English input
 #. at this point.
+#.
 msgid "Are you sure [Y/n]? "
 msgstr "N'esteu segur [Y/n]? "
 
@@ -2557,6 +2577,7 @@
 #. TRANSLATORS: Make sure to include [Y] and [n] in your
 #. translation. The program will only accept English input
 #. at this point.
+#.
 msgid "Do you want me to do it for you [Y/n]? "
 msgstr "Voleu que ho faci per vostè [Y/n]? "
 
@@ -2777,6 +2798,7 @@
 #. among various forms of relative timestamps, but
 #. your language may need more or fewer display
 #. columns.
+#.
 msgid "4 years, 11 months ago"
 msgstr "fa 4 anys i 11 mesos"
 
@@ -2838,12 +2860,12 @@
 msgstr "no s'ha pogut cercar l'objecte de comissió per a «%s»"
 
 #, c-format
-msgid ""
-"the branch '%s' is not fully merged.\n"
-"If you are sure you want to delete it, run 'git branch -D %s'"
-msgstr ""
-"la branca «%s» no està completament fusionada.\n"
-"Si esteu segur que voleu suprimir-la, executeu «git branch -D %s»"
+msgid "the branch '%s' is not fully merged"
+msgstr "la branca «%s» no està completament fusionada"
+
+#, c-format
+msgid "If you are sure you want to delete it, run 'git branch -D %s'"
+msgstr "Si esteu segur que voleu suprimir-la, executeu «git branch -D %s»"
 
 msgid "update of config-file failed"
 msgstr "ha fallat l'actualització del fitxer de configuració"
@@ -3884,8 +3906,8 @@
 msgid "new-branch"
 msgstr "branca-nova"
 
-msgid "new unparented branch"
-msgstr "branca òrfena nova"
+msgid "new unborn branch"
+msgstr "branca no nascuda nova"
 
 msgid "update ignored files (default)"
 msgstr "actualitza els fitxers ignorats (per defecte)"
@@ -4137,9 +4159,6 @@
 "clean.requireForce és per defecte cert i ni -i, -n ni -f s'han indicat; "
 "refusant netejar"
 
-msgid "-x and -X cannot be used together"
-msgstr "-x i -X no es poden usar junts"
-
 msgid "git clone [<options>] [--] <repo> [<dir>]"
 msgstr "git clone [<opcions>] [--] <repositori> [<directori>]"
 
@@ -4228,6 +4247,9 @@
 msgid "separate git dir from working tree"
 msgstr "separa el directori de git de l'arbre de treball"
 
+msgid "specify the reference format to use"
+msgstr "especifiqueu el format de referència a usar"
+
 msgid "key=value"
 msgstr "clau=valor"
 
@@ -4347,11 +4369,9 @@
 msgid "You must specify a repository to clone."
 msgstr "Heu d'especificar un repositori per a clonar."
 
-msgid ""
-"--bundle-uri is incompatible with --depth, --shallow-since, and --shallow-"
-"exclude"
-msgstr ""
-"--bundle-uri és incompatible amb --depth, --shallow-since i --shallow-exclude"
+#, c-format
+msgid "unknown ref storage format '%s'"
+msgstr "el format d'emmagatzematge de referència «%s» és desconegut"
 
 #, c-format
 msgid "repository '%s' does not exist"
@@ -4481,14 +4501,14 @@
 "--stdin-commits]\n"
 "                       [--changed-paths] [--[no-]max-new-filters <n>] [--"
 "[no-]progress]\n"
-"                       <split options>"
+"                       <split-options>"
 msgstr ""
 "git commit-graph write [--object-dir <dir>] [--append]\n"
 "                       [--split[=<strategy>]] [--reachable | --stdin-packs | "
 "--stdin-commits]\n"
 "                       [--changed-paths] [--[no-]max-new-filters <n>] [--"
 "[no-]progress]\n"
-"                       <split options>"
+"                       <split-options>"
 
 msgid "dir"
 msgstr "directori"
@@ -5007,6 +5027,7 @@
 
 #. TRANSLATORS: Leave "[(amend|reword):]" as-is,
 #. and only translate <commit>.
+#.
 msgid "[(amend|reword):]commit"
 msgstr "[(amend|reword):]commit"
 
@@ -5544,7 +5565,7 @@
 
 #, c-format
 msgid "option '%s' and commit-ishes cannot be used together"
-msgstr "les opcions «%s» i de comissió no es poden usar juntes"
+msgstr "opció «%s» i les de comissió no es poden usar juntes"
 
 msgid ""
 "git diagnose [(-o | --output-directory) <path>] [(-s | --suffix) <format>]\n"
@@ -6820,6 +6841,7 @@
 #. TRANSLATORS: %s is the configuration
 #. variable for tweaking threads, currently
 #. grep.threads
+#.
 #, c-format
 msgid "no threads support, ignoring %s"
 msgstr "no s'admeten fils, s'ignorarà %s"
@@ -6829,6 +6851,10 @@
 msgstr "no s'ha pogut llegir l'arbre (%s)"
 
 #, c-format
+msgid "unable to read tree %s"
+msgstr "no s'ha pogut llegir l'arbre %s"
+
+#, c-format
 msgid "unable to grep from object of type %s"
 msgstr "no es pot fer grep des d'un objecte de tipus %s"
 
@@ -7247,10 +7273,6 @@
 msgstr "S'HA TROBAT UNA COL·LISIÓ SHA1 AMB %s !"
 
 #, c-format
-msgid "unable to read %s"
-msgstr "no s'ha pogut llegir %s"
-
-#, c-format
 msgid "cannot read existing object info %s"
 msgstr "no es pot llegir la informació d'objecte existent %s"
 
@@ -7390,11 +7412,13 @@
 msgid ""
 "git init [-q | --quiet] [--bare] [--template=<template-directory>]\n"
 "         [--separate-git-dir <git-dir>] [--object-format=<format>]\n"
+"         [--ref-format=<format>]\n"
 "         [-b <branch-name> | --initial-branch=<branch-name>]\n"
 "         [--shared[=<permissions>]] [<directory>]"
 msgstr ""
 "git init [-q | --quiet] [--bare] [--template=<template-directory>]\n"
 "         [--separate-git-dir <git-dir>] [--object-format=<format>]\n"
+"         [--ref-format=<format>]\n"
 "         [-b <branch-name> | --initial-branch=<branch-name>]\n"
 "         [--shared[=<permissions>]] [<directory>]"
 
@@ -8110,6 +8134,12 @@
 "git merge-file [<opcions>] [-L <nom1> [-L <original> [-L <nom2>]]] <fitxer1> "
 "<fitxer-original> <fitxer2>"
 
+msgid ""
+"option diff-algorithm accepts \"myers\", \"minimal\", \"patience\" and "
+"\"histogram\""
+msgstr ""
+"l'opció diff-algorithm accepta «myers», «minimal», «patience» i «histogram»"
+
 msgid "send results to standard output"
 msgstr "envia els resultats a la sortida estàndard"
 
@@ -8131,6 +8161,12 @@
 msgid "for conflicts, use a union version"
 msgstr "en conflictes, usa una versió d'unió"
 
+msgid "<algorithm>"
+msgstr "<algorisme>"
+
+msgid "choose a diff algorithm"
+msgstr "trieu un algorisme per al diff"
+
 msgid "for conflicts, use this marker size"
 msgstr "en conflictes, usa aquesta mida de marcador"
 
@@ -8221,9 +8257,6 @@
 msgid "unknown strategy option: -X%s"
 msgstr "opció d'estratègia desconeguda: -X%s"
 
-msgid "--merge-base is incompatible with --stdin"
-msgstr "--merge-base és incompatible amb --stdin"
-
 #, c-format
 msgid "malformed input line: '%s'."
 msgstr "línia d'entrada mal formada: «%s»."
@@ -8856,6 +8889,7 @@
 
 #. TRANSLATORS: the first %s will be replaced by a git
 #. notes command: 'add', 'merge', 'remove', etc.
+#.
 #, c-format
 msgid "refusing to %s notes in %s (outside of refs/notes/)"
 msgstr "s'està refusant %s les notes en %s (fora de refs/notes/)"
@@ -9166,6 +9200,10 @@
 msgstr "inconsistència amb el comptador de diferències"
 
 #, c-format
+msgid "invalid pack.allowPackReuse value: '%s'"
+msgstr "valor pack.allowPackReuse value no vàlid: «%s»"
+
+#, c-format
 msgid ""
 "value of uploadpack.blobpackfileuri must be of the form '<object-hash> <pack-"
 "hash> <uri>' (got '%s')"
@@ -9430,10 +9468,10 @@
 #, c-format
 msgid ""
 "Total %<PRIu32> (delta %<PRIu32>), reused %<PRIu32> (delta %<PRIu32>), pack-"
-"reused %<PRIu32>"
+"reused %<PRIu32> (from %<PRIuMAX>)"
 msgstr ""
 "Total %<PRIu32> (%<PRIu32> diferències), reusats %<PRIu32> (%<PRIu32> "
-"diferències), paquets reusats %<PRIu32>"
+"diferències), paquets reusats %<PRIu32> (de %<PRIuMAX>)"
 
 msgid ""
 "'git pack-redundant' is nominated for removal.\n"
@@ -10398,13 +10436,6 @@
 msgstr "«switch» «c» espera un valor numèric"
 
 msgid ""
-"apply options are incompatible with rebase.autoSquash.  Consider adding --no-"
-"autosquash"
-msgstr ""
-"les opcions «apply» són incompatibles amb rebase.autoSquash. Considereu "
-"afegir-hi --no-autosquash"
-
-msgid ""
 "apply options are incompatible with rebase.rebaseMerges.  Consider adding --"
 "no-rebase-merges"
 msgstr ""
@@ -10922,6 +10953,7 @@
 #. TRANSLATORS: the colon ':' should align
 #. with the one in " Fetch URL: %s"
 #. translation.
+#.
 #, c-format
 msgid "  Push  URL: %s"
 msgstr "  URL de pujada: %s"
@@ -11414,6 +11446,77 @@
 msgid "only one pattern can be given with -l"
 msgstr "només es pot especificar un patró amb -l"
 
+msgid "need some commits to replay"
+msgstr "calen algunes comissions per tornar a reproduir"
+
+msgid "--onto and --advance are incompatible"
+msgstr "--onto i --advance són incompatibles"
+
+msgid "all positive revisions given must be references"
+msgstr "totes les revisions positives que s'han donat han de ser referències"
+
+msgid "argument to --advance must be a reference"
+msgstr "l'argument per a --advance ha de ser una referència"
+
+msgid ""
+"cannot advance target with multiple sources because ordering would be ill-"
+"defined"
+msgstr ""
+"no es pot avançar l'objectiu amb múltiples fonts perquè l'ordenació no "
+"estaria definida correctament"
+
+msgid ""
+"cannot implicitly determine whether this is an --advance or --onto operation"
+msgstr ""
+"no es pot determinar implícitament si aquesta és una operació --advance o --"
+"onto"
+
+msgid ""
+"cannot advance target with multiple source branches because ordering would "
+"be ill-defined"
+msgstr ""
+"no es pot avançar l'objectiu amb múltiples branques d'origen perquè "
+"l'ordenació no estaria definida correctament"
+
+msgid "cannot implicitly determine correct base for --onto"
+msgstr "no es pot determinar implícitament la base correcta per a --onto"
+
+msgid ""
+"(EXPERIMENTAL!) git replay ([--contained] --onto <newbase> | --advance "
+"<branch>) <revision-range>..."
+msgstr ""
+"(EXPERIMENTAL!) git replay ([--contained] --onto <newbase> | --advance "
+"<branch>) <revision-range>..."
+
+msgid "make replay advance given branch"
+msgstr "fes avançar la repetició de la branca donada"
+
+msgid "replay onto given commit"
+msgstr "torna a reproduir a la comissió donada"
+
+msgid "advance all branches contained in revision-range"
+msgstr "avança totes les branques contingudes a l'interval de revisions"
+
+msgid "option --onto or --advance is mandatory"
+msgstr "l'opció --onto o --advance és obligatòria"
+
+#, c-format
+msgid ""
+"some rev walking options will be overridden as '%s' bit in 'struct rev_info' "
+"will be forced"
+msgstr ""
+"algunes opcions de referència se sobreescriuran de forma forçada com a «%s» "
+"bits a «struct rev_info»"
+
+msgid "error preparing revisions"
+msgstr "s'ha produït un error en preparar les revisions"
+
+msgid "replaying down to root commit is not supported yet!"
+msgstr "encara no s'admet la reproducció cap avall en una comissió arrel"
+
+msgid "replaying merge commits is not supported yet!"
+msgstr "encara no s'admet la repetició de les comissió de fusió"
+
 msgid ""
 "git rerere [clear | forget <pathspec>... | diff | status | remaining | gc]"
 msgstr ""
@@ -11622,15 +11725,6 @@
 msgid "unknown mode for --abbrev-ref: %s"
 msgstr "mode desconegut per a --abbrev-ref: %s"
 
-msgid "--exclude-hidden cannot be used together with --branches"
-msgstr "--exclude-hidden no es pot utilitzar juntament amb --branches"
-
-msgid "--exclude-hidden cannot be used together with --tags"
-msgstr "--exclude-hidden no es pot utilitzar juntament amb --tags"
-
-msgid "--exclude-hidden cannot be used together with --remotes"
-msgstr "--exclude-hidden no es pot utilitzar juntament amb --remotes"
-
 msgid "this operation must be run in a work tree"
 msgstr "aquesta operació s'ha d'executar en un arbre de treball"
 
@@ -12040,10 +12134,6 @@
 msgid "show refs from stdin that aren't in local repository"
 msgstr "mostra les referències de stdin que no siguin en el repositori local"
 
-#, c-format
-msgid "only one of '%s', '%s' or '%s' can be given"
-msgstr "només es poden donar les opcions «%s», «%s», o «%s»"
-
 msgid ""
 "git sparse-checkout (init | list | set | add | reapply | disable | check-"
 "rules) [<options>]"
@@ -13519,28 +13609,28 @@
 
 #, c-format
 msgid ""
-"If you meant to create a worktree containing a new orphan branch\n"
+"If you meant to create a worktree containing a new unborn branch\n"
 "(branch with no commits) for this repository, you can do so\n"
 "using the --orphan flag:\n"
 "\n"
 "    git worktree add --orphan -b %s %s\n"
 msgstr ""
-"Si voleu crear un arbre de treball que contingui una branca orfe nova\n"
-"(branca sense comissions) per a aquest repositori, podeu fer-ho\n"
+"Si voleu crear un arbre de treball que contingui una branca no nascuda\n"
+"nova (branca sense comissions) per a aquest repositori, podeu fer-ho\n"
 "utilitzant l'argument --orphan:\n"
 "\n"
 "    git worktree add --orphan -b %s %s\n"
 
 #, c-format
 msgid ""
-"If you meant to create a worktree containing a new orphan branch\n"
+"If you meant to create a worktree containing a new unborn branch\n"
 "(branch with no commits) for this repository, you can do so\n"
 "using the --orphan flag:\n"
 "\n"
 "    git worktree add --orphan %s\n"
 msgstr ""
-"Si voleu crear un arbre de treball que contingui una branca orfe nova\n"
-"(branca sense comissions) per a aquest repositori, podeu fer-ho\n"
+"Si voleu crear un arbre de treball que contingui una branca no nascuda\n"
+"nova (branca sense comissions) per a aquest repositori, podeu fer-ho\n"
 "utilitzant l'argument --orphan:\n"
 "\n"
 "    git worktree add --orphan %s\n"
@@ -13603,6 +13693,10 @@
 msgstr "s'està inicialitzant"
 
 #, c-format
+msgid "could not find created worktree '%s'"
+msgstr "no s'ha pogut trobar l'arbre de treball creat «%s»"
+
+#, c-format
 msgid "Preparing worktree (new branch '%s')"
 msgstr "S'està preparant l'arbre de treball (branca nova «%s»)"
 
@@ -13641,10 +13735,6 @@
 "No hi ha referències locals o remotes malgrat hi existeix almenys un\n"
 "remot, aturada; useu «add -f» per a anul·lar o obtenir primer un remot"
 
-#, c-format
-msgid "'%s' and '%s' cannot be used together"
-msgstr "les opcions «%s» i «%s» no es poden usar juntes"
-
 msgid "checkout <branch> even if already checked out in other worktree"
 msgstr "agafa <branca> encara que sigui agafada en altre arbre de treball"
 
@@ -13654,8 +13744,8 @@
 msgid "create or reset a branch"
 msgstr "crea o restableix una branca"
 
-msgid "create unborn/orphaned branch"
-msgstr "crea una branca no nascuda/òrfena"
+msgid "create unborn branch"
+msgstr "crea una branca no nascuda"
 
 msgid "populate the new working tree"
 msgstr "emplena l'arbre de treball nou"
@@ -13679,11 +13769,8 @@
 msgstr "les opcions «%s», «%s», i «%s» no es poden usar juntes"
 
 #, c-format
-msgid "options '%s', and '%s' cannot be used together"
-msgstr "les opcions «%s» i «%s» no es poden usar juntes"
-
-msgid "<commit-ish>"
-msgstr "<commit-ish>"
+msgid "option '%s' and commit-ish cannot be used together"
+msgstr "opció «%s» i les de comissió no es poden usar juntes"
 
 msgid "added with --lock"
 msgstr "afegit amb --lock"
@@ -14313,6 +14400,11 @@
 msgid "Create, list, delete refs to replace objects"
 msgstr "Crea, llista i esborra referències per a substituir objectes"
 
+msgid "EXPERIMENTAL: Replay commits on a new base, works with bare repos too"
+msgstr ""
+"EXPERIMENTAL: torna a reproduir comissions sobre una nova base, també "
+"funciona amb repositoris nus"
+
 msgid "Generates a summary of pending changes"
 msgstr "Genera un resum dels canvis pendents"
 
@@ -14554,6 +14646,35 @@
 msgid "commit-graph file is too small"
 msgstr "el fitxer del graf de comissions és massa petit"
 
+msgid "commit-graph oid fanout chunk is wrong size"
+msgstr ""
+"el fragment de «fanout» de l'oid del graf de comissions és de mida incorrecta"
+
+msgid "commit-graph fanout values out of order"
+msgstr "valors de graf de comissions de «fanout» estan fora d'ordre"
+
+msgid "commit-graph OID lookup chunk is the wrong size"
+msgstr "el fragment de cerca OID és de mida incorrecta"
+
+msgid "commit-graph commit data chunk is wrong size"
+msgstr "el fragment de dades del graf de comissions és de mida incorrecta"
+
+msgid "commit-graph generations chunk is wrong size"
+msgstr ""
+"el fragment de les generacions del graf de comissions és de mida incorrecta"
+
+msgid "commit-graph changed-path index chunk is too small"
+msgstr ""
+"el fragment d'índex del canvi del camí del graf de comissions és massa petit"
+
+#, c-format
+msgid ""
+"ignoring too-small changed-path chunk (%<PRIuMAX> < %<PRIuMAX>) in commit-"
+"graph file"
+msgstr ""
+"s'ignorarà un fragment massa petit de camí canviat (%<PRIuMAX> < %<PRIuMAX>) "
+"al fitxer del graf de comissions"
+
 #, c-format
 msgid "commit-graph signature %X does not match signature %X"
 msgstr ""
@@ -14573,6 +14694,20 @@
 msgstr ""
 "el fitxer del graf de comissions és massa petit per a guardar %u fragments"
 
+msgid "commit-graph required OID fanout chunk missing or corrupted"
+msgstr ""
+"manca o està malmès el fragment del «fanout» OID requerit al graf de "
+"comissions"
+
+msgid "commit-graph required OID lookup chunk missing or corrupted"
+msgstr ""
+"manca o està malmès el fragment de cerca d'OID requerit al graf de comissions"
+
+msgid "commit-graph required commit data chunk missing or corrupted"
+msgstr ""
+"manca o està corromput el fragment de dades de publicació requerit al graf "
+"de comissions"
+
 msgid "commit-graph has no base graphs chunk"
 msgstr "el fragment del graf de comissions no té grafs de base"
 
@@ -14586,6 +14721,9 @@
 msgid "commit count in base graph too high: %<PRIuMAX>"
 msgstr "el nombre de comissions en el graf base és massa alt: %<PRIuMAX>"
 
+msgid "commit-graph chain file too small"
+msgstr "el fitxer de cadena del graf de comissions és massa petit"
+
 #, c-format
 msgid "invalid commit-graph chain: line '%s' not a hash"
 msgstr ""
@@ -14613,6 +14751,9 @@
 "les dades de generació de desbordament del graf de comissions són massa "
 "petites"
 
+msgid "commit-graph extra-edges pointer out of bounds"
+msgstr "punter de vores extra del graf de comissió està fora dels límits"
+
 msgid "Loading known commits in commit graph"
 msgstr "S'estan carregant comissions conegudes al graf de comissions"
 
@@ -15786,6 +15927,10 @@
 "Valor desconegut de la variable de configuració de «diff.submodule»: «%s»"
 
 #, c-format
+msgid "unknown value for config '%s': %s"
+msgstr "valor desconegut per al config «%s»': %s"
+
+#, c-format
 msgid ""
 "Found errors in 'diff.dirstat' config variable:\n"
 "%s"
@@ -15862,12 +16007,6 @@
 msgid "invalid mode '%s' in --color-moved-ws"
 msgstr "mode «%s» no vàlid en --color-moved-ws"
 
-msgid ""
-"option diff-algorithm accepts \"myers\", \"minimal\", \"patience\" and "
-"\"histogram\""
-msgstr ""
-"l'opció diff-algorithm accepta «myers», «minimal», «patience» i «histogram»"
-
 #, c-format
 msgid "invalid argument to %s"
 msgstr "argument no vàlid a %s"
@@ -15912,8 +16051,8 @@
 msgid "output only the last line of --stat"
 msgstr "mostra només l'última línia de --stat"
 
-msgid "<param1,param2>..."
-msgstr "<param1,param2>..."
+msgid "<param1>,<param2>..."
+msgstr "<param1>,<param2>..."
 
 msgid ""
 "output the distribution of relative amount of changes for each sub-directory"
@@ -15924,8 +16063,8 @@
 msgid "synonym for --dirstat=cumulative"
 msgstr "sinònim de --dirstat=cumulative"
 
-msgid "synonym for --dirstat=files,param1,param2..."
-msgstr "sinònim de --dirstat=files,param1,param2..."
+msgid "synonym for --dirstat=files,<param1>,<param2>..."
+msgstr "sinònim de --dirstat=files,<param1>,<param2>..."
 
 msgid "warn if changes introduce conflict markers or whitespace errors"
 msgstr ""
@@ -16108,12 +16247,6 @@
 msgid "generate diff using the \"histogram diff\" algorithm"
 msgstr "genera diff usant l'algorisme «histogram diff»"
 
-msgid "<algorithm>"
-msgstr "<algorisme>"
-
-msgid "choose a diff algorithm"
-msgstr "trieu un algorisme per al diff"
-
 msgid "<text>"
 msgstr "<text>"
 
@@ -16499,12 +16632,14 @@
 
 #. TRANSLATORS: The parameter will be 'ready', a protocol
 #. keyword.
+#.
 #, c-format
 msgid "expected packfile to be sent after '%s'"
 msgstr "s'esperava que el fitxer de paquet s'enviés després de «%s»"
 
 #. TRANSLATORS: The parameter will be 'ready', a protocol
 #. keyword.
+#.
 #, c-format
 msgid "expected no other sections to be sent after no '%s'"
 msgstr "no s'esperava que cap altra secció s'enviés després de «%s»"
@@ -17322,6 +17457,7 @@
 #. name, and the second argument is the abbreviated id of the
 #. commit that needs to be merged.  For example:
 #.  - go to submodule (mysubmodule), and either merge commit abc1234"
+#.
 #, c-format
 msgid ""
 " - go to submodule (%s), and either merge commit %s\n"
@@ -17356,6 +17492,7 @@
 
 #. TRANSLATORS: The %s arguments are: 1) tree hash of a merge
 #. base, and 2-3) the trees for the two trees we're merging.
+#.
 #, c-format
 msgid "collecting merge info failed for trees %s, %s, %s"
 msgstr ""
@@ -17616,6 +17753,12 @@
 msgid "multi-pack-index OID fanout is of the wrong size"
 msgstr "l'OID «fanout» de l'índex multipaquet és d'una mida incorrecta"
 
+#, c-format
+msgid ""
+"oid fanout out of order: fanout[%d] = %<PRIx32> > %<PRIx32> = fanout[%d]"
+msgstr ""
+"oid «fanout» desordenat: fanout[%d] = %<PRIx32> > %<PRIx32> = fanout[%d]"
+
 msgid "multi-pack-index OID lookup chunk is the wrong size"
 msgstr "El fragment de cerca OID índex multipaquet és de mida incorrecta"
 
@@ -17676,6 +17819,13 @@
 msgid "bad pack-int-id: %u (%u total packs)"
 msgstr "pack-int-id: %u incorrecte (%u paquets en total)"
 
+msgid "MIDX does not contain the BTMP chunk"
+msgstr "MIDX no conté el fragment BTMP"
+
+#, c-format
+msgid "could not load bitmapped pack %<PRIu32>"
+msgstr "no s'ha pogut carregar el paquet amb bits %<PRIu32>"
+
 msgid "multi-pack-index stores a 64-bit offset, but off_t is too small"
 msgstr ""
 "l'índex multipaquet emmagatzema un desplaçament de 64 bits, però off_t és "
@@ -17764,11 +17914,6 @@
 msgid "Looking for referenced packfiles"
 msgstr "S'estan cercant fitxers empaquetats referenciats"
 
-#, c-format
-msgid ""
-"oid fanout out of order: fanout[%d] = %<PRIx32> > %<PRIx32> = fanout[%d]"
-msgstr "oid fanout desordenat: fanout[%d] = %<PRIx32> > %<PRIx32> = fanout[%d]"
-
 msgid "the midx contains no oid"
 msgstr "el midx no conté cap oid"
 
@@ -17851,6 +17996,7 @@
 #. TRANSLATORS: The first %s is the name of
 #. the environment variable, the second %s is
 #. its value.
+#.
 #, c-format
 msgid "Bad %s value: '%s'"
 msgstr "Valor erroni de %s: «%s»"
@@ -18069,6 +18215,7 @@
 #. TRANSLATORS: This is a line of ambiguous object
 #. output shown when we cannot look up or parse the
 #. object in question. E.g. "deadbeef [bad object]".
+#.
 #, c-format
 msgid "%s [bad object]"
 msgstr "%s [objecte incorrecte]"
@@ -18077,6 +18224,7 @@
 #. object output. E.g.:
 #. *
 #.    "deadbeef commit 2021-01-01 - Some Commit Message"
+#.
 #, c-format
 msgid "%s commit %s - %s"
 msgstr "%s comissió %s - %s"
@@ -18091,6 +18239,7 @@
 #. *
 #. The third argument is the "tag" string
 #. from object.c.
+#.
 #, c-format
 msgid "%s tag %s - %s"
 msgstr "%s etiqueta %s - %s"
@@ -18100,18 +18249,21 @@
 #. the tag itself. E.g.:
 #. *
 #.    "deadbeef [bad tag, could not parse it]"
+#.
 #, c-format
 msgid "%s [bad tag, could not parse it]"
 msgstr "%s [etiqueta malmesa, no s'ha pogut analitzar]"
 
 #. TRANSLATORS: This is a line of ambiguous <type>
 #. object output. E.g. "deadbeef tree".
+#.
 #, c-format
 msgid "%s tree"
 msgstr "arbre %s"
 
 #. TRANSLATORS: This is a line of ambiguous <type>
 #. object output. E.g. "deadbeef blob".
+#.
 #, c-format
 msgid "%s blob"
 msgstr "blob %s"
@@ -18123,6 +18275,7 @@
 #. TRANSLATORS: The argument is the list of ambiguous
 #. objects composed in show_ambiguous_object(). See
 #. its "TRANSLATORS" comments for details.
+#.
 #, c-format
 msgid ""
 "The candidates are:\n"
@@ -18292,6 +18445,9 @@
 msgid "could not open pack %s"
 msgstr "no s'ha pogut obrir el paquet %s"
 
+msgid "could not determine MIDX preferred pack"
+msgstr "no s'ha pogut determinar el paquet preferit MIDX"
+
 #, c-format
 msgid "preferred pack (%s) is invalid"
 msgstr "el paquet preferit (%s) no és vàlid"
@@ -18318,6 +18474,12 @@
 "comissió «%s»"
 
 #, c-format
+msgid "unable to load pack: '%s', disabling pack-reuse"
+msgstr ""
+"no s'ha pogut carregar el paquet: «%s», s'està inhabilitant lareutilització "
+"de paquets"
+
+#, c-format
 msgid "object '%s' not found in type bitmaps"
 msgstr "no s'ha trobat l'objecte «%s» als tipus de mapes de bits"
 
@@ -18410,6 +18572,9 @@
 msgstr ""
 "el fragment de l'index invers de l'índex multipaquet és de mida incorrecta"
 
+msgid "could not determine preferred pack"
+msgstr "no s'ha pogut determinar el paquet preferit"
+
 msgid "cannot both write and verify reverse index"
 msgstr "no es pot escriure i verificar l'índex invers"
 
@@ -18475,10 +18640,6 @@
 msgstr "%s espera un valor enter no negatiu amb un sufix opcional k/m/g"
 
 #, c-format
-msgid "%s is incompatible with %s"
-msgstr "%s és incompatible amb %s"
-
-#, c-format
 msgid "ambiguous option: %s (could be --%s%s or --%s%s)"
 msgstr "opció ambigua: %s (pot ser --%s%s o --%s%s)"
 
@@ -18514,6 +18675,7 @@
 
 #. TRANSLATORS: the colon here should align with the
 #. one in "usage: %s" translation.
+#.
 #, c-format
 msgid "   or: %s"
 msgstr "   o: %s"
@@ -18536,6 +18698,7 @@
 #. function. The "%s" is a line in the (hopefully already
 #. translated) N_() usage string, which contained embedded
 #. newlines before we split it up.
+#.
 #, c-format
 msgid "%*s%s"
 msgstr "%*s%s"
@@ -18799,10 +18962,6 @@
 msgstr "no s'ha pogut afegir «%s» a l'índex"
 
 #, c-format
-msgid "unable to stat '%s'"
-msgstr "no s'ha pogut fer «stat» a «%s»"
-
-#, c-format
 msgid "'%s' appears as both a file and as a directory"
 msgstr "«%s» apareix com a fitxer i com a directori"
 
@@ -19384,10 +19543,6 @@
 msgstr "no es poden processar «%s» i «%s» a la vegada"
 
 #, c-format
-msgid "could not remove reference %s"
-msgstr "no s'ha pogut eliminar la referència %s"
-
-#, c-format
 msgid "could not delete reference %s: %s"
 msgstr "no s'ha pogut suprimir la referència %s: %s"
 
@@ -19570,6 +19725,7 @@
 #. TRANSLATORS: "matches '%s'%" is the <dst> part of "git push
 #. <remote> <src>:<dst>" push, and "being pushed ('%s')" is
 #. the <src>.
+#.
 #, c-format
 msgid ""
 "The destination you provided is not a full refname (i.e.,\n"
@@ -19610,7 +19766,7 @@
 "'%s:refs/tags/%s'?"
 msgstr ""
 "La part <src> de l'especificació de la referència és un objecte d'etiqueta.\n"
-"Voleu crear una etiqueta pujant-la a «%srefs/tags/%s»?"
+"Voleu crear una etiqueta pujant-la a «%s:refs/tags/%s»?"
 
 #, c-format
 msgid ""
@@ -19619,7 +19775,7 @@
 "'%s:refs/tags/%s'?"
 msgstr ""
 "La part <src> de l'especificació de la referència és un objecte d'arbre.\n"
-"Voleu crear una etiqueta pujant-la a «%srefs/tags/%s»?"
+"Voleu crear una etiqueta pujant-la a «%s:refs/tags/%s»?"
 
 #, c-format
 msgid ""
@@ -20203,6 +20359,7 @@
 
 #. TRANSLATORS: %s will be "revert", "cherry-pick" or
 #. "rebase".
+#.
 #, c-format
 msgid "%s: Unable to write new index file"
 msgstr "%s: No s'ha pogut escriure un fitxer d'índex nou"
@@ -20762,6 +20919,9 @@
 msgstr ""
 "El «stash» automàtic ja existeix; s'està creant una entrada «stash» nova."
 
+msgid "autostash reference is a symref"
+msgstr "la referència d'autostash és un symref"
+
 msgid "could not detach HEAD"
 msgstr "no s'ha pogut separar HEAD"
 
@@ -21005,7 +21165,8 @@
 "not a git repository (or any parent up to mount point %s)\n"
 "Stopping at filesystem boundary (GIT_DISCOVERY_ACROSS_FILESYSTEM not set)."
 msgstr ""
-"no és un repositori de git (ni cap pare fins al punt de muntatge %s)\n"
+"no és un repositori de git (ni existeix cap pare fins al punt de muntatge "
+"%s)\n"
 "S'atura a la frontera de sistema de fitxers (GIT_DISCOVERY_ACROSS_FILESYSTEM "
 "no està establert)."
 
@@ -21078,6 +21239,10 @@
 msgstr "nom de branca inicial no vàlid: «%s»"
 
 #, c-format
+msgid "re-init: ignored --initial-branch=%s"
+msgstr "reinicialització: s'ha ignorat --initial-branch=%s"
+
+#, c-format
 msgid "unable to handle file type %d"
 msgstr "no s'ha pogut gestionar el tipus de fitxer %d"
 
@@ -21088,15 +21253,17 @@
 msgid "attempt to reinitialize repository with different hash"
 msgstr "s'ha intentat reinicialitzar el repositori amb un resum diferent"
 
+msgid ""
+"attempt to reinitialize repository with different reference storage format"
+msgstr ""
+"s'ha intentat reactivar el repositori amb un format d'emmagatzematge de "
+"referència diferent"
+
 #, c-format
 msgid "%s already exists"
 msgstr "%s ja existeix"
 
 #, c-format
-msgid "re-init: ignored --initial-branch=%s"
-msgstr "reinicialització: s'ha ignorat --initial-branch=%s"
-
-#, c-format
 msgid "Reinitialized existing shared Git repository in %s%s\n"
 msgstr "S'ha reinicialitzat el repositori compartit existent del Git en %s%s\n"
 
@@ -21365,12 +21532,6 @@
 msgstr ""
 "nombre d'entrades a l'arbre de la memòria cau a invalidar (per defecte 0)"
 
-msgid "unhandled options"
-msgstr "opcions no gestionades"
-
-msgid "error preparing revisions"
-msgstr "s'ha produït un error en preparar les revisions"
-
 #, c-format
 msgid "commit %s is not marked reachable"
 msgstr "la comissió %s no està marcada com abastable"
@@ -21523,9 +21684,6 @@
 msgid "invalid remote service path"
 msgstr "el camí del servei remot no és vàlid"
 
-msgid "operation not supported by protocol"
-msgstr "opció no admesa pel protocol"
-
 #, c-format
 msgid "can't connect to subservice %s"
 msgstr "no es pot connectar al subservei %s"
@@ -21658,10 +21816,6 @@
 "encara no s'ha implementat la compatibilitat amb la versió v2 del protocol"
 
 #, c-format
-msgid "unknown value for config '%s': %s"
-msgstr "valor desconegut per al config «%s»': %s"
-
-#, c-format
 msgid "transport '%s' not allowed"
 msgstr "no es permet el transport «%s»"
 
@@ -21714,6 +21868,9 @@
 msgstr ""
 "no s'ha pogut recuperar la llista de paquets d'URI anunciats pel servidor"
 
+msgid "operation not supported by protocol"
+msgstr "opció no admesa pel protocol"
+
 msgid "too-short tree object"
 msgstr "objecte d'arbre massa curt"
 
@@ -22555,6 +22712,10 @@
 msgid "cannot %s: Your index contains uncommitted changes."
 msgstr "no es pot %s: El vostre índex conté canvis sense cometre."
 
+#, c-format
+msgid "unknown style '%s' given for '%s'"
+msgstr "estil desconegut «%s» donat per a «%s»"
+
 msgid ""
 "Error: Your local changes to the following files would be overwritten by "
 "merge"
@@ -22950,64 +23111,3 @@
 #, perl-format
 msgid "Do you really want to send %s? [y|N]: "
 msgstr "Esteu segur que voleu enviar %s? [y|N]: "
-
-#, c-format
-#~ msgid "options '%s=%s' and '%s=%s' cannot be used together"
-#~ msgstr "les opcions «%s=%s» i «%s=%s» no es poden usar juntes"
-
-#, c-format
-#~ msgid "%s : incompatible with something else"
-#~ msgstr "%s: és incompatible amb alguna altra cosa"
-
-#~ msgid "Could not write patch"
-#~ msgstr "No s'ha pogut escriure el pedaç"
-
-#, c-format
-#~ msgid "Could not stat '%s'"
-#~ msgstr "No s'ha pogut fer stat a «%s»"
-
-#, c-format
-#~ msgid "Cannot delete branch '%s' checked out at '%s'"
-#~ msgstr "No es pot suprimir la branca «%s» agafada a «%s»"
-
-#~ msgid "unable to write new_index file"
-#~ msgstr "no s'ha pogut escriure el fitxer new_index"
-
-#~ msgid "do not apply config rules"
-#~ msgstr "no apliquis les regles de configuració"
-
-#~ msgid "join whitespace-continued values"
-#~ msgstr "uneix els valors continus amb espais en blanc"
-
-#~ msgid "set parsing options"
-#~ msgstr "estableix les opcions d'anàlisi"
-
-#~ msgid "cannot move directory over file"
-#~ msgstr "no es pot moure un directori sobre un fitxer"
-
-#~ msgid "cannot use --filter without --stdout"
-#~ msgstr "no es pot utilitzar --filter sense --stdout"
-
-#~ msgid "cannot use --max-pack-size with --cruft"
-#~ msgstr "no es pot usar --max-pack-size amb --cruft"
-
-#~ msgid "--strategy requires --merge or --interactive"
-#~ msgstr "--strategy requereix --merge o --interactive"
-
-#, c-format
-#~ msgid ""
-#~ "commit-graph has generation number zero for commit %s, but non-zero "
-#~ "elsewhere"
-#~ msgstr ""
-#~ "el graf de comissions té nombre de generació zero per a la comissió %s, "
-#~ "però té no zero en altres llocs"
-
-#~ msgid "--merge-base only works with commits"
-#~ msgstr "--merge-base només funciona amb comissions"
-
-#~ msgid "scalar clone [<options>] [--] <repo> [<dir>]"
-#~ msgstr "scalar clone [<opcions>] [--] <repositori> [<dir>]"
-
-#, c-format
-#~ msgid "could not rename '%s' to '%s'"
-#~ msgstr "no s'ha pogut canviar el nom «%s» a «%s»"
diff --git a/po/de.po b/po/de.po
index 95a185a..37d6c80 100644
--- a/po/de.po
+++ b/po/de.po
@@ -8,8 +8,8 @@
 msgstr ""
 "Project-Id-Version: Git\n"
 "Report-Msgid-Bugs-To: Git Mailing List <git@vger.kernel.org>\n"
-"POT-Creation-Date: 2023-11-09 11:29+0100\n"
-"PO-Revision-Date: 2023-11-10 14:28+0100\n"
+"POT-Creation-Date: 2024-02-17 18:07+0100\n"
+"PO-Revision-Date: 2024-02-17 18:14+0100\n"
 "Last-Translator: Ralf Thielow <ralf.thielow@gmail.com>\n"
 "Language-Team: German\n"
 "Language: de\n"
@@ -1474,6 +1474,10 @@
 msgstr "Unerwartete Option --output"
 
 #, c-format
+msgid "extra command line parameter '%s'"
+msgstr "zusätzlicher Befehlszeilenparameter '%s'"
+
+#, c-format
 msgid "Unknown archive format '%s'"
 msgstr "Unbekanntes Archivformat '%s'"
 
@@ -1519,6 +1523,14 @@
 msgstr "ungültiges --attr-source oder GIT_ATTR_SOURCE"
 
 #, c-format
+msgid "unable to stat '%s'"
+msgstr "konnte '%s' nicht lesen"
+
+#, c-format
+msgid "unable to read %s"
+msgstr "kann %s nicht lesen"
+
+#, c-format
 msgid "Badly quoted content in file '%s': %s"
 msgstr "Ungültiger Inhalt bzgl. Anführungszeichen in Datei '%s': %s"
 
@@ -1698,12 +1710,10 @@
 msgid "not tracking: ambiguous information for ref '%s'"
 msgstr "kein Tracking: mehrdeutige Informationen für Referenz '%s'"
 
-#. #-#-#-#-#  branch.c.po  #-#-#-#-#
 #. TRANSLATORS: This is a line listing a remote with duplicate
 #. refspecs in the advice message below. For RTL languages you'll
 #. probably want to swap the "%s" and leading "  " space around.
 #.
-#. #-#-#-#-#  object-name.c.po  #-#-#-#-#
 #. TRANSLATORS: This is line item of ambiguous object output
 #. from describe_ambiguous_object() above. For RTL languages
 #. you'll probably want to swap the "%s" and leading " " space
@@ -2830,13 +2840,14 @@
 msgstr "konnte Commit-Objekt für '%s' nicht nachschlagen"
 
 #, c-format
-msgid ""
-"the branch '%s' is not fully merged.\n"
-"If you are sure you want to delete it, run 'git branch -D %s'"
+msgid "the branch '%s' is not fully merged"
+msgstr "der Branch '%s' ist nicht vollständig zusammengeführt"
+
+#, c-format
+msgid "If you are sure you want to delete it, run 'git branch -D %s'"
 msgstr ""
-"Der Branch '%s' ist nicht vollständig zusammengeführt.\n"
-"Wenn Sie sicher sind diesen Branch zu entfernen, führen Sie 'git branch -D "
-"%s' aus."
+"Wenn Sie sicher sind, dass Sie den Branch löschen wollen, führen Sie 'git "
+"branch -D %s' aus."
 
 msgid "update of config-file failed"
 msgstr "Aktualisierung der Konfigurationsdatei fehlgeschlagen."
@@ -3905,8 +3916,8 @@
 msgid "new-branch"
 msgstr "neuer Branch"
 
-msgid "new unparented branch"
-msgstr "neuer Branch ohne Eltern-Commit"
+msgid "new unborn branch"
+msgstr "neuer ungeborener Branch"
 
 msgid "update ignored files (default)"
 msgstr "ignorierte Dateien aktualisieren (Standard)"
@@ -4160,9 +4171,6 @@
 "clean.requireForce standardmäßig auf \"true\" gesetzt und weder -i, -n noch -"
 "f gegeben; \"clean\" verweigert"
 
-msgid "-x and -X cannot be used together"
-msgstr "-x und -X können nicht gemeinsam verwendet werden"
-
 msgid "git clone [<options>] [--] <repo> [<dir>]"
 msgstr "git clone [<Optionen>] [--] <Repository> [<Verzeichnis>]"
 
@@ -4256,6 +4264,9 @@
 msgid "separate git dir from working tree"
 msgstr "Git-Verzeichnis vom Arbeitsverzeichnis separieren"
 
+msgid "specify the reference format to use"
+msgstr "das zu verwendende Referenzformat angeben"
+
 msgid "key=value"
 msgstr "Schlüssel=Wert"
 
@@ -4379,12 +4390,9 @@
 msgid "You must specify a repository to clone."
 msgstr "Sie müssen ein Repository zum Klonen angeben."
 
-msgid ""
-"--bundle-uri is incompatible with --depth, --shallow-since, and --shallow-"
-"exclude"
-msgstr ""
-"--bundle-uri ist inkompatibel mit --depth, --shallow-since und --shallow-"
-"exclude"
+#, c-format
+msgid "unknown ref storage format '%s'"
+msgstr "unbekanntes Speicherformat für Referenzen '%s'"
 
 #, c-format
 msgid "repository '%s' does not exist"
@@ -4526,7 +4534,7 @@
 "--stdin-commits]\n"
 "                       [--changed-paths] [--[no-]max-new-filters <n>] [--"
 "[no-]progress]\n"
-"                       <split options>"
+"                       <split-options>"
 msgstr ""
 "git commit-graph write [--object-dir <Verzeichnis>] [--append]\n"
 "                       [--split[=<Strategie>]] [--reachable | --stdin-packs "
@@ -6892,7 +6900,6 @@
 msgid "invalid number of threads specified (%d) for %s"
 msgstr "ungültige Anzahl von Threads (%d) für %s angegeben"
 
-#. #-#-#-#-#  grep.c.po  #-#-#-#-#
 #. TRANSLATORS: %s is the configuration
 #. variable for tweaking threads, currently
 #. grep.threads
@@ -6906,6 +6913,10 @@
 msgstr "konnte \"Tree\"-Objekt (%s) nicht lesen"
 
 #, c-format
+msgid "unable to read tree %s"
+msgstr "konnte \"Tree\"-Objekt (%s) nicht lesen"
+
+#, c-format
 msgid "unable to grep from object of type %s"
 msgstr "kann \"grep\" nicht mit Objekten des Typs %s durchführen"
 
@@ -7327,10 +7338,6 @@
 msgstr "SHA1 KOLLISION MIT %s GEFUNDEN !"
 
 #, c-format
-msgid "unable to read %s"
-msgstr "kann %s nicht lesen"
-
-#, c-format
 msgid "cannot read existing object info %s"
 msgstr "Kann existierende Informationen zu Objekt %s nicht lesen."
 
@@ -7470,11 +7477,13 @@
 msgid ""
 "git init [-q | --quiet] [--bare] [--template=<template-directory>]\n"
 "         [--separate-git-dir <git-dir>] [--object-format=<format>]\n"
+"         [--ref-format=<format>]\n"
 "         [-b <branch-name> | --initial-branch=<branch-name>]\n"
 "         [--shared[=<permissions>]] [<directory>]"
 msgstr ""
 "git init [-q | --quiet] [--bare] [--template=<Vorlagenverzeichnis>]\n"
 "         [--separate-git-dir <Git-Verzeichnis>] [--object-format=<Format>]\n"
+"         [--ref-format=<Format>]\n"
 "         [-b <Branchname> | --initial-branch=<Branchname>]\n"
 "         [--shared[=<Berechtigungen>]] [<Verzeichnis>]"
 
@@ -8195,6 +8204,13 @@
 "git merge-file [<Optionen>] [-L <Name1> [-L <orig> [-L <Name2>]]] <Datei1> "
 "<orig-Datei> <Datei2>"
 
+msgid ""
+"option diff-algorithm accepts \"myers\", \"minimal\", \"patience\" and "
+"\"histogram\""
+msgstr ""
+"Option diff-algorithm akzeptiert: \"myers\", \"minimal\", \"patience\" and "
+"\"histogram\""
+
 msgid "send results to standard output"
 msgstr "Ergebnisse zur Standard-Ausgabe senden"
 
@@ -8216,6 +8232,12 @@
 msgid "for conflicts, use a union version"
 msgstr "bei Konflikten eine gemeinsame Variante verwenden"
 
+msgid "<algorithm>"
+msgstr "<Algorithmus>"
+
+msgid "choose a diff algorithm"
+msgstr "einen Algorithmus für Änderungen wählen"
+
 msgid "for conflicts, use this marker size"
 msgstr "bei Konflikten diese Kennzeichnungslänge verwenden"
 
@@ -8307,9 +8329,6 @@
 msgid "unknown strategy option: -X%s"
 msgstr "unbekannte Strategie-Option: -X%s"
 
-msgid "--merge-base is incompatible with --stdin"
-msgstr "--merge-base ist inkompatibel mit --stdin"
-
 #, c-format
 msgid "malformed input line: '%s'."
 msgstr "Fehlerhafte Eingabezeile: '%s'."
@@ -9265,6 +9284,10 @@
 msgstr "Inkonsistenz mit der Anzahl von Deltas"
 
 #, c-format
+msgid "invalid pack.allowPackReuse value: '%s'"
+msgstr "ungültiger Wert für pack.allowPackReuse: '%s'"
+
+#, c-format
 msgid ""
 "value of uploadpack.blobpackfileuri must be of the form '<object-hash> <pack-"
 "hash> <uri>' (got '%s')"
@@ -9533,10 +9556,10 @@
 #, c-format
 msgid ""
 "Total %<PRIu32> (delta %<PRIu32>), reused %<PRIu32> (delta %<PRIu32>), pack-"
-"reused %<PRIu32>"
+"reused %<PRIu32> (from %<PRIuMAX>)"
 msgstr ""
 "Gesamt %<PRIu32> (Delta %<PRIu32>), Wiederverwendet %<PRIu32> (Delta "
-"%<PRIu32>), Pack wiederverwendet %<PRIu32>"
+"%<PRIu32>), Paket wiederverwendet %<PRIu32> (von %<PRIuMAX>)"
 
 msgid ""
 "'git pack-redundant' is nominated for removal.\n"
@@ -10548,13 +10571,6 @@
 msgstr "Schalter `C' erwartet einen numerischen Wert."
 
 msgid ""
-"apply options are incompatible with rebase.autoSquash.  Consider adding --no-"
-"autosquash"
-msgstr ""
-"apply-Optionen sind mit rebase.autoSquash nicht kompatibel. Erwägen Sie das "
-"Hinzufügen von --no-autosquash"
-
-msgid ""
 "apply options are incompatible with rebase.rebaseMerges.  Consider adding --"
 "no-rebase-merges"
 msgstr ""
@@ -11567,6 +11583,77 @@
 msgid "only one pattern can be given with -l"
 msgstr "Mit -l kann nur ein Muster angegeben werden"
 
+msgid "need some commits to replay"
+msgstr "zum erneuten Abspielen werden Commits benötigt"
+
+msgid "--onto and --advance are incompatible"
+msgstr "--onto und --advance sind inkompatibel"
+
+msgid "all positive revisions given must be references"
+msgstr "alle angegebenen positiven Commits müssen Referenzen sein"
+
+msgid "argument to --advance must be a reference"
+msgstr "Argument für --advance muss eine Referenz sein"
+
+msgid ""
+"cannot advance target with multiple sources because ordering would be ill-"
+"defined"
+msgstr ""
+"kann Ziel nicht mit mehreren Quellen erweitern, da die Reihenfolge unklar "
+"wäre"
+
+msgid ""
+"cannot implicitly determine whether this is an --advance or --onto operation"
+msgstr ""
+"kann nicht implizit bestimmen, ob es sich um eine --advance oder --onto "
+"Operation handelt"
+
+msgid ""
+"cannot advance target with multiple source branches because ordering would "
+"be ill-defined"
+msgstr ""
+"kann Ziel nicht mit mehreren Quell-Branches erweitern, da die Reihenfolge "
+"unklar wäre"
+
+msgid "cannot implicitly determine correct base for --onto"
+msgstr "kann nicht implizit die richtige Basis für --onto bestimmen"
+
+msgid ""
+"(EXPERIMENTAL!) git replay ([--contained] --onto <newbase> | --advance "
+"<branch>) <revision-range>..."
+msgstr ""
+"(EXPERIMENTELL!) git replay ([--contained] --onto <neue-Basis> | --advance "
+"<Branch>) <Commitbereich>..."
+
+msgid "make replay advance given branch"
+msgstr "angegebenen Branch durch neues Abspielen erweitern"
+
+msgid "replay onto given commit"
+msgstr "auf angegebenen Commit neu abspielen"
+
+msgid "advance all branches contained in revision-range"
+msgstr "alle Branches erweitern, die in Commitbereich liegen"
+
+msgid "option --onto or --advance is mandatory"
+msgstr "Option --onto oder --advance erforderlich"
+
+#, c-format
+msgid ""
+"some rev walking options will be overridden as '%s' bit in 'struct rev_info' "
+"will be forced"
+msgstr ""
+"einige Optionen für das Abgehen von Commits werden außer Kraft gesetzt, da "
+"das '%s' Bit in 'struct rev_info' erzwungen wird"
+
+msgid "error preparing revisions"
+msgstr "Fehler beim Vorbereiten der Commits"
+
+msgid "replaying down to root commit is not supported yet!"
+msgstr "erneutes Abspielen bis zum Root-Commit wird noch nicht unterstützt!"
+
+msgid "replaying merge commits is not supported yet!"
+msgstr "erneutes Abspielen von Merge-Commits wird noch nicht unterstützt!"
+
 msgid ""
 "git rerere [clear | forget <pathspec>... | diff | status | remaining | gc]"
 msgstr ""
@@ -11778,15 +11865,6 @@
 msgid "unknown mode for --abbrev-ref: %s"
 msgstr "unbekannter Modus für --abbrev-ref: %s"
 
-msgid "--exclude-hidden cannot be used together with --branches"
-msgstr "--exclude-hidden kann nicht zusammen mit --branches verwendet werden"
-
-msgid "--exclude-hidden cannot be used together with --tags"
-msgstr "--exclude-hidden kann nicht zusammen mit --tags verwendet werden"
-
-msgid "--exclude-hidden cannot be used together with --remotes"
-msgstr "--exclude-hidden kann nicht zusammen mit --remotes verwendet werden"
-
 msgid "this operation must be run in a work tree"
 msgstr "Diese Operation muss in einem Arbeitsverzeichnis ausgeführt werden."
 
@@ -12202,10 +12280,6 @@
 "Referenzen von der Standard-Eingabe anzeigen, die sich nicht im lokalen "
 "Repository befinden"
 
-#, c-format
-msgid "only one of '%s', '%s' or '%s' can be given"
-msgstr "es kann nur eines von '%s', '%s' oder '%s' angegeben werden"
-
 msgid ""
 "git sparse-checkout (init | list | set | add | reapply | disable | check-"
 "rules) [<options>]"
@@ -13717,33 +13791,29 @@
 
 #, c-format
 msgid ""
-"If you meant to create a worktree containing a new orphan branch\n"
+"If you meant to create a worktree containing a new unborn branch\n"
 "(branch with no commits) for this repository, you can do so\n"
 "using the --orphan flag:\n"
 "\n"
 "    git worktree add --orphan -b %s %s\n"
 msgstr ""
-"Wenn Sie ein Arbeitsverzeichnis erstellen möchten, um einen neuen verwaisten "
-"Branch\n"
-"(Branch ohne Commits) für dieses Repository zu erstellen, können Sie dies "
-"mit\n"
-"der Option --orphan tun:\n"
+"Wenn Sie ein Arbeitsverzeichnis erstellen möchten, welches einen neuen\n"
+"ungeborenen Branch (Branch ohne Commits) für dieses Repository erzeugt,\n"
+"können Sie dies mit der Option --orphan tun:\n"
 "\n"
 "    git worktree add --orphan -b %s %s\n"
 
 #, c-format
 msgid ""
-"If you meant to create a worktree containing a new orphan branch\n"
+"If you meant to create a worktree containing a new unborn branch\n"
 "(branch with no commits) for this repository, you can do so\n"
 "using the --orphan flag:\n"
 "\n"
 "    git worktree add --orphan %s\n"
 msgstr ""
-"Wenn Sie ein Arbeitsverzeichnis erstellen möchten, um einen neuen verwaisten "
-"Branch\n"
-"(Branch ohne Commits) für dieses Repository zu erstellen, können Sie dies "
-"mit\n"
-"der Option --orphan tun:\n"
+"Wenn Sie ein Arbeitsverzeichnis erstellen möchten, welches einen neuen\n"
+"ungeborenen Branch (Branch ohne Commits) für dieses Repository erzeugt,\n"
+"können Sie dies mit der Option --orphan tun:\n"
 "\n"
 "    git worktree add --orphan %s\n"
 
@@ -13806,6 +13876,10 @@
 msgstr "initialisiere"
 
 #, c-format
+msgid "could not find created worktree '%s'"
+msgstr "konnte erstelltes Arbeitsverzeichnis '%s' nicht finden"
+
+#, c-format
 msgid "Preparing worktree (new branch '%s')"
 msgstr "Bereite Arbeitsverzeichnis vor (neuer Branch '%s')"
 
@@ -13845,10 +13919,6 @@
 "Referenz zu überschreiben\n"
 "oder rufen Sie diese zuerst ab"
 
-#, c-format
-msgid "'%s' and '%s' cannot be used together"
-msgstr "'%s' und '%s' können nicht zusammen verwendet werden"
-
 msgid "checkout <branch> even if already checked out in other worktree"
 msgstr ""
 "<Branch> auschecken, auch wenn dieser bereits in einem anderen "
@@ -13860,8 +13930,8 @@
 msgid "create or reset a branch"
 msgstr "Branch erstellen oder umsetzen"
 
-msgid "create unborn/orphaned branch"
-msgstr "ungeborenen/verwaisten Branch erstellen"
+msgid "create unborn branch"
+msgstr "ungeborenen Branch erzeugen"
 
 msgid "populate the new working tree"
 msgstr "das neue Arbeitsverzeichnis auschecken"
@@ -13886,11 +13956,8 @@
 "die Optionen '%s', '%s' und '%s' können nicht gemeinsam verwendet werden"
 
 #, c-format
-msgid "options '%s', and '%s' cannot be used together"
-msgstr "die Optionen '%s' und '%s' können nicht gemeinsam verwendet werden"
-
-msgid "<commit-ish>"
-msgstr "<Commit-Angabe>"
+msgid "option '%s' and commit-ish cannot be used together"
+msgstr "Option '%s' und commit-ish können nicht gemeinsam verwendet werden"
 
 msgid "added with --lock"
 msgstr "mit --lock hinzugefügt"
@@ -14541,6 +14608,11 @@
 msgid "Create, list, delete refs to replace objects"
 msgstr "Referenzen für ersetzende Objekte erstellen, auflisten, löschen"
 
+msgid "EXPERIMENTAL: Replay commits on a new base, works with bare repos too"
+msgstr ""
+"EXPERIMENTELL: Commits auf neuer Basis abspielen, funktioniert auch mit Bare-"
+"Repositories"
+
 msgid "Generates a summary of pending changes"
 msgstr "eine Übersicht über ausstehende Änderungen generieren"
 
@@ -14785,6 +14857,32 @@
 msgid "commit-graph file is too small"
 msgstr "Commit-Graph-Datei ist zu klein"
 
+msgid "commit-graph oid fanout chunk is wrong size"
+msgstr "Commit-Graph OID fanout Chunk hat die falsche Größe"
+
+msgid "commit-graph fanout values out of order"
+msgstr "Commit-Graph fanout-Werte sind nicht in Ordnung"
+
+msgid "commit-graph OID lookup chunk is the wrong size"
+msgstr "Commit-Graph OID Lookup Chunk hat die falsche Größe"
+
+msgid "commit-graph commit data chunk is wrong size"
+msgstr "Commit-Graph Commit Daten Chunk hat die falsche Größe"
+
+msgid "commit-graph generations chunk is wrong size"
+msgstr "Commit-Graph Generations Chunk hat die falsche Größe"
+
+msgid "commit-graph changed-path index chunk is too small"
+msgstr "Commit-Graph changed-path Index Chunk ist zu klein"
+
+#, c-format
+msgid ""
+"ignoring too-small changed-path chunk (%<PRIuMAX> < %<PRIuMAX>) in commit-"
+"graph file"
+msgstr ""
+"ignoriere zu kleinen Chunk für geänderte Pfade (%<PRIuMAX> < %<PRIuMAX>) in "
+"Commit-Graph-Datei"
+
 #, c-format
 msgid "commit-graph signature %X does not match signature %X"
 msgstr "Commit-Graph-Signatur %X stimmt nicht mit Signatur %X überein"
@@ -14801,6 +14899,16 @@
 msgid "commit-graph file is too small to hold %u chunks"
 msgstr "Commit-Graph-Datei ist zu klein, um %u Chunks zu enthalten"
 
+msgid "commit-graph required OID fanout chunk missing or corrupted"
+msgstr "Commit-Graph benötigter OID fanout Chunk fehlt oder ist beschädigt"
+
+msgid "commit-graph required OID lookup chunk missing or corrupted"
+msgstr "Commit-Graph benötigter OID lookup Chunk fehlt oder ist beschädigt"
+
+msgid "commit-graph required commit data chunk missing or corrupted"
+msgstr ""
+"Commit-Graph erforderlicher Commit-Daten Chunk fehlt oder ist beschädigt"
+
 msgid "commit-graph has no base graphs chunk"
 msgstr "Commit-Graph hat keinen Basis-Graph-Chunk"
 
@@ -14814,6 +14922,9 @@
 msgid "commit count in base graph too high: %<PRIuMAX>"
 msgstr "Anzahl der Commits im Basisgraph zu hoch: %<PRIuMAX>"
 
+msgid "commit-graph chain file too small"
+msgstr "Commit-Graph Chain-Datei zu klein"
+
 #, c-format
 msgid "invalid commit-graph chain: line '%s' not a hash"
 msgstr "Ungültige Commit-Graph Verkettung: Zeile '%s' ist kein Hash"
@@ -14834,6 +14945,9 @@
 msgid "commit-graph overflow generation data is too small"
 msgstr "Commit-Graph Überlaufgenerierungsdaten sind zu klein"
 
+msgid "commit-graph extra-edges pointer out of bounds"
+msgstr "commit-graph extra-edges Zeiger außerhalb der Grenzen"
+
 msgid "Loading known commits in commit graph"
 msgstr "Lade bekannte Commits in Commit-Graph"
 
@@ -16001,6 +16115,10 @@
 msgstr "Unbekannter Wert in Konfigurationsvariable 'diff.submodule': '%s'"
 
 #, c-format
+msgid "unknown value for config '%s': %s"
+msgstr "Unbekannter Wert für Konfiguration '%s': %s"
+
+#, c-format
 msgid ""
 "Found errors in 'diff.dirstat' config variable:\n"
 "%s"
@@ -16082,13 +16200,6 @@
 msgid "invalid mode '%s' in --color-moved-ws"
 msgstr "ungültiger Modus '%s' in --color-moved-ws"
 
-msgid ""
-"option diff-algorithm accepts \"myers\", \"minimal\", \"patience\" and "
-"\"histogram\""
-msgstr ""
-"Option diff-algorithm akzeptiert: \"myers\", \"minimal\", \"patience\" and "
-"\"histogram\""
-
 #, c-format
 msgid "invalid argument to %s"
 msgstr "ungültiges Argument für %s"
@@ -16132,8 +16243,8 @@
 msgid "output only the last line of --stat"
 msgstr "nur die letzte Zeile von --stat ausgeben"
 
-msgid "<param1,param2>..."
-msgstr "<Parameter1,Parameter2>..."
+msgid "<param1>,<param2>..."
+msgstr "<Parameter1>,<Parameter2>..."
 
 msgid ""
 "output the distribution of relative amount of changes for each sub-directory"
@@ -16144,8 +16255,8 @@
 msgid "synonym for --dirstat=cumulative"
 msgstr "Synonym für --dirstat=cumulative"
 
-msgid "synonym for --dirstat=files,param1,param2..."
-msgstr "Synonym für --dirstat=files,Parameter1,Parameter2..."
+msgid "synonym for --dirstat=files,<param1>,<param2>..."
+msgstr "Synonym für --dirstat=files,<Parameter1>,<Parameter2>..."
 
 msgid "warn if changes introduce conflict markers or whitespace errors"
 msgstr ""
@@ -16328,12 +16439,6 @@
 msgid "generate diff using the \"histogram diff\" algorithm"
 msgstr "Änderungen durch Nutzung des Algorithmus \"Histogram Diff\" erzeugen"
 
-msgid "<algorithm>"
-msgstr "<Algorithmus>"
-
-msgid "choose a diff algorithm"
-msgstr "einen Algorithmus für Änderungen wählen"
-
 msgid "<text>"
 msgstr "<Text>"
 
@@ -17547,7 +17652,7 @@
 #. conflict in a submodule. The first argument is the submodule
 #. name, and the second argument is the abbreviated id of the
 #. commit that needs to be merged.  For example:
-#.  - go to submodule (mysubmodule), and either merge commit abc1234"
+#. - go to submodule (mysubmodule), and either merge commit abc1234"
 #.
 #, c-format
 msgid ""
@@ -17848,6 +17953,13 @@
 msgid "multi-pack-index OID fanout is of the wrong size"
 msgstr "Multi-Pack-Index OID fanout hat die falsche Größe"
 
+#, c-format
+msgid ""
+"oid fanout out of order: fanout[%d] = %<PRIx32> > %<PRIx32> = fanout[%d]"
+msgstr ""
+"Ungültige oid fanout Reihenfolge: fanout[%d] = %<PRIx32> > %<PRIx32> = "
+"fanout[%d]"
+
 msgid "multi-pack-index OID lookup chunk is the wrong size"
 msgstr "multi-pack-index OID-Lookup-Chunk hat die falsche Größe"
 
@@ -17898,6 +18010,13 @@
 msgid "bad pack-int-id: %u (%u total packs)"
 msgstr "Ungültige pack-int-id: %u (%u Pakete insgesamt)"
 
+msgid "MIDX does not contain the BTMP chunk"
+msgstr "MIDX enthält keinen BTMP-Chunk"
+
+#, c-format
+msgid "could not load bitmapped pack %<PRIu32>"
+msgstr "konnte Bitmap-Paket nicht laden %<PRIu32>"
+
 msgid "multi-pack-index stores a 64-bit offset, but off_t is too small"
 msgstr ""
 "Multi-Pack-Index speichert einen 64-Bit Offset, aber off_t ist zu klein"
@@ -17983,13 +18102,6 @@
 msgid "Looking for referenced packfiles"
 msgstr "Suche nach referenzierten Pack-Dateien"
 
-#, c-format
-msgid ""
-"oid fanout out of order: fanout[%d] = %<PRIx32> > %<PRIx32> = fanout[%d]"
-msgstr ""
-"Ungültige oid fanout Reihenfolge: fanout[%d] = %<PRIx32> > %<PRIx32> = "
-"fanout[%d]"
-
 msgid "the midx contains no oid"
 msgstr "das midx enthält keine oid"
 
@@ -18304,7 +18416,7 @@
 #. TRANSLATORS: This is a line of ambiguous commit
 #. object output. E.g.:
 #. *
-#.    "deadbeef commit 2021-01-01 - Some Commit Message"
+#. "deadbeef commit 2021-01-01 - Some Commit Message"
 #.
 #, c-format
 msgid "%s commit %s - %s"
@@ -18313,7 +18425,7 @@
 #. TRANSLATORS: This is a line of ambiguous
 #. tag object output. E.g.:
 #. *
-#.    "deadbeef tag 2022-01-01 - Some Tag Message"
+#. "deadbeef tag 2022-01-01 - Some Tag Message"
 #. *
 #. The second argument is the YYYY-MM-DD found
 #. in the tag.
@@ -18329,7 +18441,7 @@
 #. tag object output where we couldn't parse
 #. the tag itself. E.g.:
 #. *
-#.    "deadbeef [bad tag, could not parse it]"
+#. "deadbeef [bad tag, could not parse it]"
 #.
 #, c-format
 msgid "%s [bad tag, could not parse it]"
@@ -18525,6 +18637,9 @@
 msgid "could not open pack %s"
 msgstr "konnte Paket '%s' nicht öffnen"
 
+msgid "could not determine MIDX preferred pack"
+msgstr "konnte das von MIDX bevorzugte Paket nicht ermitteln"
+
 #, c-format
 msgid "preferred pack (%s) is invalid"
 msgstr "bevorzugtes Paket (%s) ist ungültig"
@@ -18548,6 +18663,12 @@
 "fehlerhafte ewah-Bitmap: abgeschnittener Header für Bitmap des Commits \"%s\""
 
 #, c-format
+msgid "unable to load pack: '%s', disabling pack-reuse"
+msgstr ""
+"Paket kann nicht geladen werden: '%s', Deaktivierung der Paket-"
+"Wiederverwendung"
+
+#, c-format
 msgid "object '%s' not found in type bitmaps"
 msgstr "Objekt '%s' nicht im Typ Bitmaps gefunden"
 
@@ -18638,6 +18759,9 @@
 msgid "multi-pack-index reverse-index chunk is the wrong size"
 msgstr "multi-pack-index Reverse-Index Chunk hat die falsche Größe"
 
+msgid "could not determine preferred pack"
+msgstr "konnte das bevorzugte Paket nicht bestimmen"
+
 msgid "cannot both write and verify reverse index"
 msgstr ""
 "Reverse-Index kann nicht gleichzeitig geschrieben und verifiziert werden"
@@ -18704,10 +18828,6 @@
 "Suffix"
 
 #, c-format
-msgid "%s is incompatible with %s"
-msgstr "%s ist inkompatibel mit %s."
-
-#, c-format
 msgid "ambiguous option: %s (could be --%s%s or --%s%s)"
 msgstr "Mehrdeutige Option: %s (kann --%s%s oder --%s%s sein)"
 
@@ -19031,10 +19151,6 @@
 msgstr "Konnte '%s' nicht dem Index hinzufügen."
 
 #, c-format
-msgid "unable to stat '%s'"
-msgstr "konnte '%s' nicht lesen"
-
-#, c-format
 msgid "'%s' appears as both a file and as a directory"
 msgstr "'%s' scheint eine Datei und ein Verzeichnis zu sein"
 
@@ -19613,10 +19729,6 @@
 msgstr "kann '%s' und '%s' nicht zur selben Zeit verarbeiten"
 
 #, c-format
-msgid "could not remove reference %s"
-msgstr "konnte Referenz %s nicht löschen"
-
-#, c-format
 msgid "could not delete reference %s: %s"
 msgstr "konnte Referenz %s nicht entfernen: %s"
 
@@ -19810,16 +19922,13 @@
 "\n"
 "Neither worked, so we gave up. You must fully qualify the ref."
 msgstr ""
-"Das angegebene Ziel ist kein vollständiger Referenzname (startet mit \"refs/"
-"\").\n"
-"Wir versuchten zu erraten, was Sie meinten, mit:\n"
+"Das angegebene Ziel ist kein vollständiger Referenzname (startet mit\n"
+"\"refs/\"). Wir versuchten zu erraten, was Sie meinten, mit:\n"
 "\n"
 "- Suche einer Referenz, die mit '%s' übereinstimmt, auf der Remote-Seite\n"
-"- Prüfung, ob die versendete <Quelle> ('%s') eine Referenz in \"refs/{heads,"
-"tags}\"\n"
-"  ist, in dessen Falle wir einen entsprechenden refs/{heads,tags} Präfix "
-"auf\n"
-"  der Remote-Seite hinzufügen würden.\n"
+"- Prüfung, ob die versendete <Quelle> ('%s') eine Referenz in\n"
+"  \"refs/{heads,tags}/\" ist, in dessen Falle wir einen entsprechenden\n"
+"  refs/{heads,tags}/ Präfix auf der Remote-Seite hinzufügen würden.\n"
 "\n"
 "Keines hat funktioniert, sodass wir aufgegeben haben. Sie müssen die\n"
 "Referenz mit vollqualifizierten Namen angeben."
@@ -21004,6 +21113,9 @@
 msgid "Autostash exists; creating a new stash entry."
 msgstr "Automatischer Stash existiert; ein neuer Stash-Eintrag wird erstellt."
 
+msgid "autostash reference is a symref"
+msgstr "Referenz für autostash ist eine symbolische Referenz"
+
 msgid "could not detach HEAD"
 msgstr "konnte HEAD nicht loslösen"
 
@@ -21324,6 +21436,10 @@
 msgstr "ungültiger initialer Branchname: '%s'"
 
 #, c-format
+msgid "re-init: ignored --initial-branch=%s"
+msgstr "Neu-Initialisierung: --initial-branch=%s ignoriert"
+
+#, c-format
 msgid "unable to handle file type %d"
 msgstr "kann nicht mit Dateityp %d umgehen"
 
@@ -21334,15 +21450,17 @@
 msgid "attempt to reinitialize repository with different hash"
 msgstr "Versuch, das Repository mit einem anderen Hash zu reinitialisieren"
 
+msgid ""
+"attempt to reinitialize repository with different reference storage format"
+msgstr ""
+"Versuch, das Repository mit einem anderen Referenzspeicherformat neu zu "
+"initialisieren"
+
 #, c-format
 msgid "%s already exists"
 msgstr "%s existiert bereits"
 
 #, c-format
-msgid "re-init: ignored --initial-branch=%s"
-msgstr "Neu-Initialisierung: --initial-branch=%s ignoriert"
-
-#, c-format
 msgid "Reinitialized existing shared Git repository in %s%s\n"
 msgstr "Bestehendes verteiltes Git-Repository in %s%s neuinitialisiert\n"
 
@@ -21611,12 +21729,6 @@
 "Anzahl der Einträge im Cache-Verzeichnis, die ungültig gemacht werden sollen "
 "(Standardwert 0)"
 
-msgid "unhandled options"
-msgstr "unbehandelte Optionen"
-
-msgid "error preparing revisions"
-msgstr "Fehler beim Vorbereiten der Commits"
-
 #, c-format
 msgid "commit %s is not marked reachable"
 msgstr "Commit %s ist nicht als erreichbar gekennzeichnet."
@@ -21772,9 +21884,6 @@
 msgid "invalid remote service path"
 msgstr "ungültiger Remote-Service Pfad."
 
-msgid "operation not supported by protocol"
-msgstr "die Operation wird von dem Protokoll nicht unterstützt"
-
 #, c-format
 msgid "can't connect to subservice %s"
 msgstr "kann keine Verbindung zu Subservice %s herstellen"
@@ -21905,10 +22014,6 @@
 msgstr "Unterstützung für Protokoll v2 noch nicht implementiert."
 
 #, c-format
-msgid "unknown value for config '%s': %s"
-msgstr "Unbekannter Wert für Konfiguration '%s': %s"
-
-#, c-format
 msgid "transport '%s' not allowed"
 msgstr "Übertragungsart '%s' nicht erlaubt."
 
@@ -21961,6 +22066,9 @@
 msgid "could not retrieve server-advertised bundle-uri list"
 msgstr "konnte die vom Server angekündigte bundle-uri-Liste nicht abrufen"
 
+msgid "operation not supported by protocol"
+msgstr "die Operation wird von dem Protokoll nicht unterstützt"
+
 msgid "too-short tree object"
 msgstr "zu kurzes Tree-Objekt"
 
@@ -22849,6 +22957,10 @@
 msgstr ""
 "%s nicht möglich: Die Staging-Area enthält nicht committete Änderungen."
 
+#, c-format
+msgid "unknown style '%s' given for '%s'"
+msgstr "unbekannter Stil '%s' für '%s' angegeben"
+
 msgid ""
 "Error: Your local changes to the following files would be overwritten by "
 "merge"
diff --git a/po/fr.po b/po/fr.po
index ee2e610..736a90f 100644
--- a/po/fr.po
+++ b/po/fr.po
@@ -80,8 +80,8 @@
 msgstr ""
 "Project-Id-Version: git\n"
 "Report-Msgid-Bugs-To: Git Mailing List <git@vger.kernel.org>\n"
-"POT-Creation-Date: 2023-11-08 04:57+0000\n"
-"PO-Revision-Date: 2023-11-11 10:00+0100\n"
+"POT-Creation-Date: 2024-02-16 19:18+0100\n"
+"PO-Revision-Date: 2024-02-16 19:19+0100\n"
 "Last-Translator: Cédric Malard <c.malard-git@valdun.net>\n"
 "Language-Team: Jean-Noël Avila <jn.avila@free.fr>\n"
 "Language: fr\n"
@@ -1526,6 +1526,10 @@
 msgstr "Option --output inattendue"
 
 #, c-format
+msgid "extra command line parameter '%s'"
+msgstr "paramètre de commande supplémentaire '%s'"
+
+#, c-format
 msgid "Unknown archive format '%s'"
 msgstr "Format d'archive inconnu '%s'"
 
@@ -1571,6 +1575,14 @@
 msgstr "mauvais --attr-source ou GIT_ATTR_SOURCE"
 
 #, c-format
+msgid "unable to stat '%s'"
+msgstr "fstat de '%s' impossible"
+
+#, c-format
+msgid "unable to read %s"
+msgstr "impossible de lire %s"
+
+#, c-format
 msgid "Badly quoted content in file '%s': %s"
 msgstr "Contenu mal cité dans le fichier '%s' : %s"
 
@@ -2874,12 +2886,12 @@
 msgstr "impossible de rechercher l'objet commit pour '%s'"
 
 #, c-format
-msgid ""
-"the branch '%s' is not fully merged.\n"
-"If you are sure you want to delete it, run 'git branch -D %s'"
-msgstr ""
-"la branche '%s' n'est pas totalement fusionnée.\n"
-"Si vous souhaitez réellement la supprimer, lancez 'git branch -D %s'"
+msgid "the branch '%s' is not fully merged"
+msgstr "la branche '%s' n'est pas complètement fusionnée"
+
+#, c-format
+msgid "If you are sure you want to delete it, run 'git branch -D %s'"
+msgstr "Si vous souhaitez réellement la supprimer, lancez 'git branch -D %s'"
 
 msgid "update of config-file failed"
 msgstr "échec de la mise à jour du fichier de configuration"
@@ -3937,8 +3949,8 @@
 msgid "new-branch"
 msgstr "nouvelle branche"
 
-msgid "new unparented branch"
-msgstr "nouvelle branche sans parent"
+msgid "new unborn branch"
+msgstr "nouvelle branche non née"
 
 msgid "update ignored files (default)"
 msgstr "mettre à jour les fichiers ignorés (par défaut)"
@@ -4192,9 +4204,6 @@
 "clean.requireForce à true par défaut et ni -i, -n ou -f fourni ; refus de "
 "nettoyer"
 
-msgid "-x and -X cannot be used together"
-msgstr "-x et -X ne peuvent pas être utilisés ensemble"
-
 msgid "git clone [<options>] [--] <repo> [<dir>]"
 msgstr "git clone [<options>] [--] <dépôt> [<répertoire>]"
 
@@ -4285,6 +4294,9 @@
 msgid "separate git dir from working tree"
 msgstr "séparer le répertoire git de la copie de travail"
 
+msgid "specify the reference format to use"
+msgstr "spécifier le format de réference à utiliser"
+
 msgid "key=value"
 msgstr "clé=valeur"
 
@@ -4407,12 +4419,9 @@
 msgid "You must specify a repository to clone."
 msgstr "Vous devez spécifier un dépôt à cloner."
 
-msgid ""
-"--bundle-uri is incompatible with --depth, --shallow-since, and --shallow-"
-"exclude"
-msgstr ""
-"--bundle-uri est incompatible avec --depth, --shallow-since, et --shallow-"
-"exclude"
+#, c-format
+msgid "unknown ref storage format '%s'"
+msgstr "Format de stockage de réf inconnu '%s'"
 
 #, c-format
 msgid "repository '%s' does not exist"
@@ -4546,14 +4555,14 @@
 "--stdin-commits]\n"
 "                       [--changed-paths] [--[no-]max-new-filters <n>] [--"
 "[no-]progress]\n"
-"                       <split options>"
+"                       <split-options>"
 msgstr ""
 "git commit-graph write [--object-dir <rép>] [--append]\n"
 "                       [--split[=<stratégie>]] [--reachable | --stdin-packs "
 "| --stdin-commits]\n"
 "                       [--changed-paths] [--[no-]max-new-filters <n>] [--"
 "[no-]progress]\n"
-"                       <options de division>"
+"                       <options-de-division>"
 
 msgid "dir"
 msgstr "répertoire"
@@ -6907,6 +6916,10 @@
 msgstr "impossible de lire l'arbre (%s)"
 
 #, c-format
+msgid "unable to read tree %s"
+msgstr "impossible de lire l'arbre %s"
+
+#, c-format
 msgid "unable to grep from object of type %s"
 msgstr "impossible de faire un grep sur un objet de type %s"
 
@@ -7325,10 +7338,6 @@
 msgstr "COLLISION SHA1 TROUVÉE AVEC %s !"
 
 #, c-format
-msgid "unable to read %s"
-msgstr "impossible de lire %s"
-
-#, c-format
 msgid "cannot read existing object info %s"
 msgstr "impossible de lire l'information existante de l'objet %s"
 
@@ -7469,12 +7478,14 @@
 msgid ""
 "git init [-q | --quiet] [--bare] [--template=<template-directory>]\n"
 "         [--separate-git-dir <git-dir>] [--object-format=<format>]\n"
+"         [--ref-format=<format>]\n"
 "         [-b <branch-name> | --initial-branch=<branch-name>]\n"
 "         [--shared[=<permissions>]] [<directory>]"
 msgstr ""
-"git init [-q | --quiet] [--bare] [--template=<répertoire-modèle>]\n"
-"         [--separate-git-dir <rép-git>] [--object-format=<format>]\\n\"\n"
-"         [-b <nom-de-branche> | --initial-branch=<nom-de-branche>]\\n\"\n"
+"git init [-q | --quiet] [--bare] [--template=<répertoire-de-modèles>]\n"
+"         [--separate-git-dir <rép-git>] [--object-format=<format>]\n"
+"         [--ref-format=<format>]\n"
+"         [-b <nom-de-branch> | --initial-branch=<nom-de-branche>]\n"
 "         [--shared[=<permissions>]] [<répertoire>]"
 
 msgid "permissions"
@@ -8204,6 +8215,13 @@
 "git merge-file [<options>] [-L <nom1> [-L <orig> [-L <nom2>]]] <fichier1> "
 "<fichier-orig> <fichier2>"
 
+msgid ""
+"option diff-algorithm accepts \"myers\", \"minimal\", \"patience\" and "
+"\"histogram\""
+msgstr ""
+"l'option diff-algorithm accept \"myers\", \"minimal\", \"patience\" et "
+"\"histogram\""
+
 msgid "send results to standard output"
 msgstr "envoyer les résultats sur la sortie standard"
 
@@ -8225,6 +8243,12 @@
 msgid "for conflicts, use a union version"
 msgstr "pour les conflits, utiliser l'ensemble des versions"
 
+msgid "<algorithm>"
+msgstr "<algorithme>"
+
+msgid "choose a diff algorithm"
+msgstr "choisir un algorithme de différence"
+
 msgid "for conflicts, use this marker size"
 msgstr "pour les conflits, utiliser cette taille de marqueur"
 
@@ -8315,9 +8339,6 @@
 msgid "unknown strategy option: -X%s"
 msgstr "option de stratégie inconnue : -X%s"
 
-msgid "--merge-base is incompatible with --stdin"
-msgstr "--merge-base est incompatible avec --stdin"
-
 #, c-format
 msgid "malformed input line: '%s'."
 msgstr "ligne en entrée malformée : '%s'."
@@ -9265,6 +9286,10 @@
 msgstr "inconsistance dans le compte de delta"
 
 #, c-format
+msgid "invalid pack.allowPackReuse value: '%s'"
+msgstr "valeur invalide de pack.allowPackReuse : '%s'"
+
+#, c-format
 msgid ""
 "value of uploadpack.blobpackfileuri must be of the form '<object-hash> <pack-"
 "hash> <uri>' (got '%s')"
@@ -9527,10 +9552,10 @@
 #, c-format
 msgid ""
 "Total %<PRIu32> (delta %<PRIu32>), reused %<PRIu32> (delta %<PRIu32>), pack-"
-"reused %<PRIu32>"
+"reused %<PRIu32> (from %<PRIuMAX>)"
 msgstr ""
 "Total %<PRIu32> (delta %<PRIu32>), réutilisés %<PRIu32> (delta %<PRIu32>), "
-"réutilisés du pack %<PRIu32>"
+"réutilisés du paquet %<PRIu32> (depuis %<PRIuMAX>)"
 
 msgid ""
 "'git pack-redundant' is nominated for removal.\n"
@@ -10520,13 +10545,6 @@
 msgstr "l'option `C' attend un valeur numérique"
 
 msgid ""
-"apply options are incompatible with rebase.autoSquash.  Consider adding --no-"
-"autosquash"
-msgstr ""
-"les options d'application sont incompatibles avec rebase.autoSquash. "
-"Considérez l'ajout de --no-autosquash"
-
-msgid ""
 "apply options are incompatible with rebase.rebaseMerges.  Consider adding --"
 "no-rebase-merges"
 msgstr ""
@@ -11535,6 +11553,77 @@
 msgid "only one pattern can be given with -l"
 msgstr "-l n'accepte qu'un motifs"
 
+msgid "need some commits to replay"
+msgstr "commits requis pour pouvoir rejouer"
+
+msgid "--onto and --advance are incompatible"
+msgstr "--onto et --advance sont incompatibles"
+
+msgid "all positive revisions given must be references"
+msgstr "toutes les révisions positives fournies doivent être des références"
+
+msgid "argument to --advance must be a reference"
+msgstr "l'argument de --advance doit être une référence"
+
+msgid ""
+"cannot advance target with multiple sources because ordering would be ill-"
+"defined"
+msgstr ""
+"impossible d'avancer la cible avec des sources multiples parce l'ordre ne "
+"serait pas total"
+
+msgid ""
+"cannot implicitly determine whether this is an --advance or --onto operation"
+msgstr ""
+"impossible de déterminer implicitement s'il y a une opération --advance ou --"
+"onto"
+
+msgid ""
+"cannot advance target with multiple source branches because ordering would "
+"be ill-defined"
+msgstr ""
+"impossible d'avancer la cible sur des branches sources multiples parce que "
+"l'ordre ne serait pas total"
+
+msgid "cannot implicitly determine correct base for --onto"
+msgstr "impossible de déterminer implicitement une base correcte pour --onto"
+
+msgid ""
+"(EXPERIMENTAL!) git replay ([--contained] --onto <newbase> | --advance "
+"<branch>) <revision-range>..."
+msgstr ""
+"(EXPERIMENTAL!) git replay ([--contained] --onto <nouvelle-base> | --advance "
+"<branche>) <plage-de-révision>..."
+
+msgid "make replay advance given branch"
+msgstr "faire rejouer en avançant la branche indiquée"
+
+msgid "replay onto given commit"
+msgstr "rejouer par-dessus le commit indiqué"
+
+msgid "advance all branches contained in revision-range"
+msgstr "avancer toutes les branches contenues dans la plage-de-révisions"
+
+msgid "option --onto or --advance is mandatory"
+msgstr "une option --onto ou --advance est obligatoire"
+
+#, c-format
+msgid ""
+"some rev walking options will be overridden as '%s' bit in 'struct rev_info' "
+"will be forced"
+msgstr ""
+"certaines options de parcours de révs seront surchargées car le bit '%s' "
+"dans 'struct rev_info' sera forcé"
+
+msgid "error preparing revisions"
+msgstr "erreur lors de la préparation des révisions"
+
+msgid "replaying down to root commit is not supported yet!"
+msgstr "rejouer jusqu'au commit racine n'est pas encore géré !"
+
+msgid "replaying merge commits is not supported yet!"
+msgstr "rejouer des commits de fusion n'est pas encore géré !"
+
 msgid ""
 "git rerere [clear | forget <pathspec>... | diff | status | remaining | gc]"
 msgstr ""
@@ -11746,15 +11835,6 @@
 msgid "unknown mode for --abbrev-ref: %s"
 msgstr "mode inconnu pour --abbrev-ref : %s"
 
-msgid "--exclude-hidden cannot be used together with --branches"
-msgstr "--exclude-hidden ne peut être utilisé avec --branches"
-
-msgid "--exclude-hidden cannot be used together with --tags"
-msgstr "--exclude-hidden ne peut pas être utilisé avec --tags"
-
-msgid "--exclude-hidden cannot be used together with --remotes"
-msgstr "--exclude-hidden ne peut pas être utilisé avec --remotes"
-
 msgid "this operation must be run in a work tree"
 msgstr "cette opération doit être effectuée dans un arbre de travail"
 
@@ -12171,10 +12251,6 @@
 "afficher les références de l'entrée standard qui ne sont pas dans le dépôt "
 "local"
 
-#, c-format
-msgid "only one of '%s', '%s' or '%s' can be given"
-msgstr "les options '%s', '%s' et '%s' sont mutuellement exclusives"
-
 msgid ""
 "git sparse-checkout (init | list | set | add | reapply | disable | check-"
 "rules) [<options>]"
@@ -13673,28 +13749,28 @@
 
 #, c-format
 msgid ""
-"If you meant to create a worktree containing a new orphan branch\n"
+"If you meant to create a worktree containing a new unborn branch\n"
 "(branch with no commits) for this repository, you can do so\n"
 "using the --orphan flag:\n"
 "\n"
 "    git worktree add --orphan -b %s %s\n"
 msgstr ""
 "Si vous vouliez créer un arbre-de-travail contenant une nouvelle branche\n"
-"orpheline (une branche sans commit) pour ce dépôt, vous pouvez le faire\n"
+"non-née (une branche sans commit) pour ce dépôt, vous pouvez le faire\n"
 "en utilisant le drapeau --orphan :\n"
 "\n"
 "    git worktree add --orphan -b %s %s\n"
 
 #, c-format
 msgid ""
-"If you meant to create a worktree containing a new orphan branch\n"
+"If you meant to create a worktree containing a new unborn branch\n"
 "(branch with no commits) for this repository, you can do so\n"
 "using the --orphan flag:\n"
 "\n"
 "    git worktree add --orphan %s\n"
 msgstr ""
 "Si vous vouliez créer un arbre-de-travail contenant une nouvelle branche\n"
-"orpheline (une branche sans commit) pour ce dépôt, vous pouvez le faire\n"
+"non-née (une branche sans commit) pour ce dépôt, vous pouvez le faire\n"
 "en utilisant le drapeau --orphan :\n"
 "\n"
 "    git worktree add --orphan %s\n"
@@ -13757,6 +13833,10 @@
 msgstr "initialisation"
 
 #, c-format
+msgid "could not find created worktree '%s'"
+msgstr "impossible de trouver l'arbre-de-travail créé '%s'"
+
+#, c-format
 msgid "Preparing worktree (new branch '%s')"
 msgstr "Préparation de l'arbre de travail (nouvelle branche '%s')"
 
@@ -13797,10 +13877,6 @@
 "on arrête ; utilisez 'add -f' pour passe outre ou récupérer le distant en "
 "premier"
 
-#, c-format
-msgid "'%s' and '%s' cannot be used together"
-msgstr "'%s' et '%s' ne peuvent pas être utilisées ensemble"
-
 msgid "checkout <branch> even if already checked out in other worktree"
 msgstr ""
 "extraire la <branche> même si elle est déjà extraite dans une autre copie de "
@@ -13812,8 +13888,8 @@
 msgid "create or reset a branch"
 msgstr "créer ou réinitialiser une branche"
 
-msgid "create unborn/orphaned branch"
-msgstr "créer une branche non née/orpheline"
+msgid "create unborn branch"
+msgstr "créer une branche non née"
 
 msgid "populate the new working tree"
 msgstr "remplissage de la nouvelle copie de travail"
@@ -13835,11 +13911,9 @@
 msgstr "les options '%s', '%s' et '%s' ne peuvent pas être utilisées ensemble"
 
 #, c-format
-msgid "options '%s', and '%s' cannot be used together"
-msgstr "les options '%s' et '%s' ne peuvent pas être utilisées ensemble"
-
-msgid "<commit-ish>"
-msgstr "<commit-esque>"
+msgid "option '%s' and commit-ish cannot be used together"
+msgstr ""
+"l'option '%s' et des commit-esques ne peuvent pas être utilisés ensemble"
 
 msgid "added with --lock"
 msgstr "ajouté avec --lock"
@@ -14480,6 +14554,11 @@
 msgid "Create, list, delete refs to replace objects"
 msgstr "Créer, lister, supprimer des référence pour remplacer des objets"
 
+msgid "EXPERIMENTAL: Replay commits on a new base, works with bare repos too"
+msgstr ""
+"EXPÉRIMENTAL ; rejoue des commits sur une nouvelle base, fonctionne aussi "
+"avec les dépôts nus"
+
 msgid "Generates a summary of pending changes"
 msgstr "Générer une résumé des modifications en attentes"
 
@@ -14722,6 +14801,35 @@
 msgid "commit-graph file is too small"
 msgstr "le graphe de commit est trop petit"
 
+msgid "commit-graph oid fanout chunk is wrong size"
+msgstr ""
+"le tronçon de distribution d'oid du graphe de commit n'a pas la bonne taille"
+
+msgid "commit-graph fanout values out of order"
+msgstr "les valeurs de distribution du graphe de commit sont désordonnées"
+
+msgid "commit-graph OID lookup chunk is the wrong size"
+msgstr ""
+"le tronçon de recherche de l'OID du graphe de commits n'a pas la bonne taille"
+
+msgid "commit-graph commit data chunk is wrong size"
+msgstr "le tronçon de données du graphe de commit n'a pas la bonne taille"
+
+msgid "commit-graph generations chunk is wrong size"
+msgstr "le tronçon des générations du graphe de commit n'a pas la bonne taille"
+
+msgid "commit-graph changed-path index chunk is too small"
+msgstr ""
+"le tronçon d'index des chemins modifiés du graphe de commit est trop petit"
+
+#, c-format
+msgid ""
+"ignoring too-small changed-path chunk (%<PRIuMAX> < %<PRIuMAX>) in commit-"
+"graph file"
+msgstr ""
+"tronçon de chemin modifié dans le fichier de graphe de commits trop petit "
+"((%<PRIuMAX> < %<PRIuMAX>)) ignoré"
+
 #, c-format
 msgid "commit-graph signature %X does not match signature %X"
 msgstr ""
@@ -14741,6 +14849,21 @@
 msgid "commit-graph file is too small to hold %u chunks"
 msgstr "le graphe de commit est trop petit pour contenir %u tronçons"
 
+msgid "commit-graph required OID fanout chunk missing or corrupted"
+msgstr ""
+"le tronçon de distribution des OID requis du graphe de commits est manquant "
+"ou corrompu"
+
+msgid "commit-graph required OID lookup chunk missing or corrupted"
+msgstr ""
+"le tronçon de recherche OID requis par le graphe de commits est manquant ou "
+"corrompu"
+
+msgid "commit-graph required commit data chunk missing or corrupted"
+msgstr ""
+"le tronçon d'étalement OID requis par le graphe de commits est manquant ou "
+"corrompu"
+
 msgid "commit-graph has no base graphs chunk"
 msgstr "le graphe de commit n'a pas de tronçon de graphes de base"
 
@@ -14754,6 +14877,9 @@
 msgid "commit count in base graph too high: %<PRIuMAX>"
 msgstr "nombre de commits dans le graphe de base trop haut : %<PRIuMAX>"
 
+msgid "commit-graph chain file too small"
+msgstr "la chaine du graphe de commit est trop petite"
+
 #, c-format
 msgid "invalid commit-graph chain: line '%s' not a hash"
 msgstr ""
@@ -14781,6 +14907,9 @@
 "les données de génération de débordement du graphe de commits sont trop "
 "petites"
 
+msgid "commit-graph extra-edges pointer out of bounds"
+msgstr "pointeur hors-gamme d'arêtes supplémentaires du graphe de commits"
+
 msgid "Loading known commits in commit graph"
 msgstr "Lecture des commits connus dans un graphe de commit"
 
@@ -15961,6 +16090,10 @@
 "Valeur inconnue pour la variable de configuration 'diff.submodule' : '%s'"
 
 #, c-format
+msgid "unknown value for config '%s': %s"
+msgstr "valeur inconnue pour la config '%s' : %s"
+
+#, c-format
 msgid ""
 "Found errors in 'diff.dirstat' config variable:\n"
 "%s"
@@ -16042,13 +16175,6 @@
 msgid "invalid mode '%s' in --color-moved-ws"
 msgstr "mode invalide '%s' dans --color-moved-ws"
 
-msgid ""
-"option diff-algorithm accepts \"myers\", \"minimal\", \"patience\" and "
-"\"histogram\""
-msgstr ""
-"l'option diff-algorithm accept \"myers\", \"minimal\", \"patience\" et "
-"\"histogram\""
-
 #, c-format
 msgid "invalid argument to %s"
 msgstr "argument invalide pour %s"
@@ -16092,8 +16218,8 @@
 msgid "output only the last line of --stat"
 msgstr "afficher seulement la dernière ligne de --stat"
 
-msgid "<param1,param2>..."
-msgstr "<param1,param2>..."
+msgid "<param1>,<param2>..."
+msgstr "<param1>,<param2>..."
 
 msgid ""
 "output the distribution of relative amount of changes for each sub-directory"
@@ -16104,8 +16230,8 @@
 msgid "synonym for --dirstat=cumulative"
 msgstr "synonyme pour --dirstat=cumulative"
 
-msgid "synonym for --dirstat=files,param1,param2..."
-msgstr "synonyme pour --dirstat=files,param1,param2..."
+msgid "synonym for --dirstat=files,<param1>,<param2>..."
+msgstr "synonyme pour --dirstat=files,<param1>,<param2>..."
 
 msgid "warn if changes introduce conflict markers or whitespace errors"
 msgstr ""
@@ -16293,12 +16419,6 @@
 msgstr ""
 "générer un diff en utilisant l'algorithme de différence \"histogramme\""
 
-msgid "<algorithm>"
-msgstr "<algorithme>"
-
-msgid "choose a diff algorithm"
-msgstr "choisir un algorithme de différence"
-
 msgid "<text>"
 msgstr "<texte>"
 
@@ -17808,6 +17928,13 @@
 msgid "multi-pack-index OID fanout is of the wrong size"
 msgstr "l'étalement de l'OID d'index multi-paquet n'a pas la bonne taille"
 
+#, c-format
+msgid ""
+"oid fanout out of order: fanout[%d] = %<PRIx32> > %<PRIx32> = fanout[%d]"
+msgstr ""
+"étalement oid en désordre : étalement[%d] = %<PRIx32> > %<PRIx32> = "
+"étalement[%d]"
+
 msgid "multi-pack-index OID lookup chunk is the wrong size"
 msgstr ""
 "le tronçon de recherche de l'OID d'index multi-paquet n'a pas la bonne taille"
@@ -17868,6 +17995,13 @@
 msgid "bad pack-int-id: %u (%u total packs)"
 msgstr "mauvais pack-int-id : %u (%u paquets au total)"
 
+msgid "MIDX does not contain the BTMP chunk"
+msgstr "le MIDX ne contient pas de tronçon BTMP"
+
+#, c-format
+msgid "could not load bitmapped pack %<PRIu32>"
+msgstr "impossible d'ouvrir le paquet bitmappé %<PRIu32>"
+
 msgid "multi-pack-index stores a 64-bit offset, but off_t is too small"
 msgstr ""
 "l'index multi-paquet stocke un décalage en 64-bit, mais off_t est trop petit"
@@ -17953,13 +18087,6 @@
 msgid "Looking for referenced packfiles"
 msgstr "Recherche de fichiers paquets référencés"
 
-#, c-format
-msgid ""
-"oid fanout out of order: fanout[%d] = %<PRIx32> > %<PRIx32> = fanout[%d]"
-msgstr ""
-"étalement oid en désordre : étalement[%d] = %<PRIx32> > %<PRIx32> = "
-"étalement[%d]"
-
 msgid "the midx contains no oid"
 msgstr "le midx ne contient aucun oid"
 
@@ -18486,6 +18613,9 @@
 msgid "could not open pack %s"
 msgstr "impossible d'ouvrir le paquet '%s'"
 
+msgid "could not determine MIDX preferred pack"
+msgstr "impossible de déterminer le paquet préféré de MIDX"
+
 #, c-format
 msgid "preferred pack (%s) is invalid"
 msgstr "le paquet préféré (%s) est invalide"
@@ -18508,6 +18638,10 @@
 msgstr "bitmap ewah corrompue : entête tronqué pour la bitmap du commit '%s'"
 
 #, c-format
+msgid "unable to load pack: '%s', disabling pack-reuse"
+msgstr "impossible de charger le paquet : '%s', pack-reuse désactivé"
+
+#, c-format
 msgid "object '%s' not found in type bitmaps"
 msgstr "objet '%s' non trouvé dans les bitmaps de type"
 
@@ -18599,6 +18733,9 @@
 msgstr ""
 "le tronçon d'index inversé de l'index multi-paquet n'a pas la bonne taille"
 
+msgid "could not determine preferred pack"
+msgstr "impossible de déterminer le paquet préféré"
+
 msgid "cannot both write and verify reverse index"
 msgstr "impossible de lire et vérifier à la fois l'index inverse"
 
@@ -18663,10 +18800,6 @@
 msgstr "%s attend une valeur entière non négative avec une suffixe k/m/g"
 
 #, c-format
-msgid "%s is incompatible with %s"
-msgstr "%s est incompatible avec %s"
-
-#, c-format
 msgid "ambiguous option: %s (could be --%s%s or --%s%s)"
 msgstr "option ambigüe : %s (devrait être --%s%s ou --%s%s)"
 
@@ -18995,10 +19128,6 @@
 msgstr "impossible d'ajouter '%s' à l'index"
 
 #, c-format
-msgid "unable to stat '%s'"
-msgstr "fstat de '%s' impossible"
-
-#, c-format
 msgid "'%s' appears as both a file and as a directory"
 msgstr "'%s' existe à la fois comme un fichier et un répertoire"
 
@@ -19575,10 +19704,6 @@
 msgstr "impossible de traiter '%s' et '%s' en même temps"
 
 #, c-format
-msgid "could not remove reference %s"
-msgstr "impossible de supprimer la référence %s"
-
-#, c-format
 msgid "could not delete reference %s: %s"
 msgstr "impossible de supprimer la référence %s : %s"
 
@@ -19773,7 +19898,7 @@
 "Neither worked, so we gave up. You must fully qualify the ref."
 msgstr ""
 "La destination que vous avez fournie n'est pas un nom de référence complète\n"
-"(c'est-à-dire commençant par \"ref/\"). Essai d'approximation par :\n"
+"(c'est-à-dire commençant par \"refs/\"). Essai d'approximation par :\n"
 "\n"
 "- Recherche d'une référence qui correspond à '%s' sur le serveur distant.\n"
 "- Vérification si la <source> en cours de poussée ('%s')\n"
@@ -20961,6 +21086,9 @@
 msgstr ""
 "Un remisage automatique existe ; création d'une nouvelle entrée de remisage."
 
+msgid "autostash reference is a symref"
+msgstr "la référence d'auto-remisage est une symref"
+
 msgid "could not detach HEAD"
 msgstr "impossible de détacher HEAD"
 
@@ -21280,6 +21408,10 @@
 msgstr "nom de branche initiale invalide : '%s'"
 
 #, c-format
+msgid "re-init: ignored --initial-branch=%s"
+msgstr "re-initialisation : --initial-branch=%s ignoré"
+
+#, c-format
 msgid "unable to handle file type %d"
 msgstr "impossible de traiter le fichier de type %d"
 
@@ -21290,15 +21422,17 @@
 msgid "attempt to reinitialize repository with different hash"
 msgstr "essai de réinitialisation du dépôt avec une empreinte différente"
 
+msgid ""
+"attempt to reinitialize repository with different reference storage format"
+msgstr ""
+"essai de réinitialisation du dépôt avec un format de stockage de références "
+"différent"
+
 #, c-format
 msgid "%s already exists"
 msgstr "%s existe déjà"
 
 #, c-format
-msgid "re-init: ignored --initial-branch=%s"
-msgstr "re-initialisation : --initial-branch=%s ignoré"
-
-#, c-format
 msgid "Reinitialized existing shared Git repository in %s%s\n"
 msgstr "Dépôt Git existant partagé réinitialisé dans %s%s\n"
 
@@ -21567,12 +21701,6 @@
 msgid "number of entries in the cache tree to invalidate (default 0)"
 msgstr "nombre d'entrées dans l'arbre de cache à invalider (par défaut, 0)"
 
-msgid "unhandled options"
-msgstr "options non gérées"
-
-msgid "error preparing revisions"
-msgstr "erreur lors de la préparation des révisions"
-
 #, c-format
 msgid "commit %s is not marked reachable"
 msgstr "le commit %s n'est pas marqué joignable"
@@ -21732,9 +21860,6 @@
 msgid "invalid remote service path"
 msgstr "chemin de service distant invalide"
 
-msgid "operation not supported by protocol"
-msgstr "option non supportée par le protocole"
-
 #, c-format
 msgid "can't connect to subservice %s"
 msgstr "impossible de se connecter au sous-service %s"
@@ -21867,10 +21992,6 @@
 msgstr "le support du protocole v2 n'est pas encore implanté"
 
 #, c-format
-msgid "unknown value for config '%s': %s"
-msgstr "valeur inconnue pour la config '%s' : %s"
-
-#, c-format
 msgid "transport '%s' not allowed"
 msgstr "transport '%s' non permis"
 
@@ -21924,6 +22045,9 @@
 msgstr ""
 "impossible de récupérer la liste de bundle-uris annoncée par le serveur"
 
+msgid "operation not supported by protocol"
+msgstr "option non supportée par le protocole"
+
 msgid "too-short tree object"
 msgstr "objet arbre trop court"
 
@@ -22773,6 +22897,10 @@
 msgid "cannot %s: Your index contains uncommitted changes."
 msgstr "%s impossible : votre index contient des modifications non validées."
 
+#, c-format
+msgid "unknown style '%s' given for '%s'"
+msgstr "style inconnu '%s' pour '%s'"
+
 msgid ""
 "Error: Your local changes to the following files would be overwritten by "
 "merge"
@@ -23174,6 +23302,61 @@
 msgid "Do you really want to send %s? [y|N]: "
 msgstr "Souhaitez-vous réellement envoyer %s ?[y|N] : "
 
+#~ msgid "-x and -X cannot be used together"
+#~ msgstr "-x et -X ne peuvent pas être utilisés ensemble"
+
+#~ msgid ""
+#~ "--bundle-uri is incompatible with --depth, --shallow-since, and --shallow-"
+#~ "exclude"
+#~ msgstr ""
+#~ "--bundle-uri est incompatible avec --depth, --shallow-since, et --shallow-"
+#~ "exclude"
+
+#~ msgid "--merge-base is incompatible with --stdin"
+#~ msgstr "--merge-base est incompatible avec --stdin"
+
+#~ msgid ""
+#~ "apply options are incompatible with rebase.autoSquash.  Consider adding --"
+#~ "no-autosquash"
+#~ msgstr ""
+#~ "les options d'application sont incompatibles avec rebase.autoSquash. "
+#~ "Considérez l'ajout de --no-autosquash"
+
+#~ msgid "--exclude-hidden cannot be used together with --branches"
+#~ msgstr "--exclude-hidden ne peut être utilisé avec --branches"
+
+#~ msgid "--exclude-hidden cannot be used together with --tags"
+#~ msgstr "--exclude-hidden ne peut pas être utilisé avec --tags"
+
+#~ msgid "--exclude-hidden cannot be used together with --remotes"
+#~ msgstr "--exclude-hidden ne peut pas être utilisé avec --remotes"
+
+#, c-format
+#~ msgid "only one of '%s', '%s' or '%s' can be given"
+#~ msgstr "les options '%s', '%s' et '%s' sont mutuellement exclusives"
+
+#, c-format
+#~ msgid "'%s' and '%s' cannot be used together"
+#~ msgstr "'%s' et '%s' ne peuvent pas être utilisées ensemble"
+
+#, c-format
+#~ msgid "options '%s', and '%s' cannot be used together"
+#~ msgstr "les options '%s' et '%s' ne peuvent pas être utilisées ensemble"
+
+#~ msgid "<commit-ish>"
+#~ msgstr "<commit-esque>"
+
+#, c-format
+#~ msgid "%s is incompatible with %s"
+#~ msgstr "%s est incompatible avec %s"
+
+#, c-format
+#~ msgid "could not remove reference %s"
+#~ msgstr "impossible de supprimer la référence %s"
+
+#~ msgid "unhandled options"
+#~ msgstr "options non gérées"
+
 #, c-format
 #~ msgid "options '%s=%s' and '%s=%s' cannot be used together"
 #~ msgstr ""
diff --git a/po/id.po b/po/id.po
index 9698367..3e8b212 100644
--- a/po/id.po
+++ b/po/id.po
@@ -7,8 +7,8 @@
 msgstr ""
 "Project-Id-Version: Git\n"
 "Report-Msgid-Bugs-To: Git Mailing List <git@vger.kernel.org>\n"
-"POT-Creation-Date: 2023-11-12 20:04+0700\n"
-"PO-Revision-Date: 2023-11-12 20:30+0700\n"
+"POT-Creation-Date: 2024-02-16 09:36+0700\n"
+"PO-Revision-Date: 2024-02-16 10:45+0700\n"
 "Last-Translator: Bagas Sanjaya <bagasdotme@gmail.com>\n"
 "Language-Team: Indonesian\n"
 "Language: id\n"
@@ -909,7 +909,7 @@
 msgstr "tanda kutip tak ditutup"
 
 #: alias.c builtin/cat-file.c builtin/notes.c builtin/prune-packed.c
-#: builtin/receive-pack.c builtin/tag.c
+#: builtin/receive-pack.c builtin/tag.c t/helper/test-pkt-line.c
 msgid "too many arguments"
 msgstr "terlalu banyak argumen"
 
@@ -924,12 +924,13 @@
 msgstr "opsi abai spasi putih tidak dikenal '%s'"
 
 #: apply.c archive.c builtin/add.c builtin/branch.c builtin/checkout-index.c
-#: builtin/checkout.c builtin/clone.c builtin/commit.c builtin/describe.c
-#: builtin/diff-tree.c builtin/difftool.c builtin/fast-export.c builtin/fetch.c
-#: builtin/help.c builtin/index-pack.c builtin/init-db.c builtin/log.c
-#: builtin/ls-files.c builtin/merge-base.c builtin/merge.c
-#: builtin/pack-objects.c builtin/push.c builtin/rebase.c builtin/repack.c
-#: builtin/reset.c builtin/rev-list.c builtin/show-branch.c builtin/stash.c
+#: builtin/checkout.c builtin/clean.c builtin/clone.c builtin/commit.c
+#: builtin/describe.c builtin/diff-tree.c builtin/difftool.c
+#: builtin/fast-export.c builtin/fetch.c builtin/help.c builtin/index-pack.c
+#: builtin/init-db.c builtin/log.c builtin/ls-files.c builtin/merge-base.c
+#: builtin/merge-tree.c builtin/merge.c builtin/pack-objects.c builtin/rebase.c
+#: builtin/repack.c builtin/replay.c builtin/reset.c builtin/rev-list.c
+#: builtin/rev-parse.c builtin/show-branch.c builtin/stash.c
 #: builtin/submodule--helper.c builtin/tag.c builtin/worktree.c parse-options.c
 #: range-diff.c revision.c
 #, c-format
@@ -1754,6 +1755,11 @@
 
 #: archive.c
 #, c-format
+msgid "extra command line parameter '%s'"
+msgstr "parameter konfigurasi tambahan: '%s'"
+
+#: archive.c
+#, c-format
 msgid "Unknown archive format '%s'"
 msgstr "Format arsip tidak dikenal '%s'"
 
@@ -1808,6 +1814,17 @@
 msgid "bad --attr-source or GIT_ATTR_SOURCE"
 msgstr "--attr-source atau GIT_ATTR_SOURCE jelek"
 
+#: attr.c read-cache.c
+#, c-format
+msgid "unable to stat '%s'"
+msgstr "tidak dapat men-stat '%s'"
+
+#: bisect.c builtin/cat-file.c builtin/index-pack.c builtin/notes.c
+#: builtin/pack-objects.c combine-diff.c rerere.c
+#, c-format
+msgid "unable to read %s"
+msgstr "tidak dapat membaca %s"
+
 #: bisect.c
 #, c-format
 msgid "Badly quoted content in file '%s': %s"
@@ -2359,8 +2376,8 @@
 msgstr "tindakan jelek '%s' untuk '%s'"
 
 #: builtin/am.c builtin/blame.c builtin/fetch.c builtin/pack-objects.c
-#: builtin/pull.c diff-merges.c gpg-interface.c ls-refs.c parallel-checkout.c
-#: sequencer.c setup.c
+#: builtin/pull.c config.c diff-merges.c gpg-interface.c ls-refs.c
+#: parallel-checkout.c sequencer.c setup.c
 #, c-format
 msgid "invalid value for '%s': '%s'"
 msgstr "nilai tidak valid untuk '%s': '%s'"
@@ -2523,8 +2540,7 @@
 msgid "applying to an empty history"
 msgstr "menerapkan ke sebuah riwayat kosong"
 
-#: builtin/am.c builtin/commit.c builtin/merge.c sequencer.c
-#: t/helper/test-fast-rebase.c
+#: builtin/am.c builtin/commit.c builtin/merge.c builtin/replay.c sequencer.c
 msgid "failed to write commit object"
 msgstr "gagal menulis objek komit"
 
@@ -2710,8 +2726,9 @@
 msgstr "n"
 
 #: builtin/am.c builtin/branch.c builtin/bugreport.c builtin/cat-file.c
-#: builtin/diagnose.c builtin/for-each-ref.c builtin/ls-files.c
-#: builtin/ls-tree.c builtin/replace.c builtin/tag.c builtin/verify-tag.c
+#: builtin/clone.c builtin/diagnose.c builtin/for-each-ref.c builtin/init-db.c
+#: builtin/ls-files.c builtin/ls-tree.c builtin/replace.c builtin/tag.c
+#: builtin/verify-tag.c
 msgid "format"
 msgstr "format"
 
@@ -3406,12 +3423,13 @@
 
 #: builtin/branch.c
 #, c-format
-msgid ""
-"the branch '%s' is not fully merged.\n"
-"If you are sure you want to delete it, run 'git branch -D %s'"
-msgstr ""
-"cabang '%s' belum sepenuhnya tergabung.\n"
-"kalau Anda yakin ingin menghapusnya, jalankan 'git branch -D %s'"
+msgid "the branch '%s' is not fully merged"
+msgstr "cabang '%s' belum sepenuhnya digabungkan"
+
+#: builtin/branch.c
+#, c-format
+msgid "If you are sure you want to delete it, run 'git branch -D %s'"
+msgstr "Jika anda yakin untuk menghapusnya, lakukan 'git branch -D %s'"
 
 #: builtin/branch.c
 msgid "update of config-file failed"
@@ -4443,7 +4461,7 @@
 msgid "HEAD is now at"
 msgstr "HEAD sekarang berada di"
 
-#: builtin/checkout.c builtin/clone.c t/helper/test-fast-rebase.c
+#: builtin/checkout.c builtin/clone.c
 msgid "unable to update HEAD"
 msgstr "tidak dapat memperbarui HEAD"
 
@@ -4714,8 +4732,8 @@
 msgstr "cabang baru"
 
 #: builtin/checkout.c
-msgid "new unparented branch"
-msgstr "cabang baru tanpa induk"
+msgid "new unborn branch"
+msgstr "cabang yatim baru"
 
 #: builtin/checkout.c builtin/merge.c
 msgid "update ignored files (default)"
@@ -4783,7 +4801,7 @@
 msgid "you must specify path(s) to restore"
 msgstr "Anda harus sebutkan jalur untuk dipulihkan"
 
-#: builtin/checkout.c builtin/clone.c builtin/remote.c
+#: builtin/checkout.c builtin/clone.c builtin/remote.c builtin/replay.c
 #: builtin/submodule--helper.c builtin/worktree.c
 msgid "branch"
 msgstr "cabang"
@@ -5027,10 +5045,6 @@
 "clean.requireForce asal ke true dan baik -i, -n, atau -f tidak diberikan; "
 "menolak membersihkan"
 
-#: builtin/clean.c
-msgid "-x and -X cannot be used together"
-msgstr "-x dan -X tidak dapat digunakan bersamaan"
-
 #: builtin/clone.c
 msgid "git clone [<options>] [--] <repo> [<dir>]"
 msgstr "git clone [<opsi>] [--] <repo> [<direktori>]"
@@ -5122,6 +5136,7 @@
 msgstr "buat klon dangkal sejak waktu yang disebutkan"
 
 #: builtin/clone.c builtin/fetch.c builtin/pull.c builtin/rebase.c
+#: builtin/replay.c
 msgid "revision"
 msgstr "revisi"
 
@@ -5149,6 +5164,10 @@
 msgid "separate git dir from working tree"
 msgstr "pisahkan direktori git dari pohon kerja"
 
+#: builtin/clone.c builtin/init-db.c
+msgid "specify the reference format to use"
+msgstr "sebutkan format referensi untuk digunakan"
+
 #: builtin/clone.c
 msgid "key=value"
 msgstr "kunci=nilai"
@@ -5299,13 +5318,10 @@
 msgid "You must specify a repository to clone."
 msgstr "Anda harus sebutkan repositori untuk diklon."
 
-#: builtin/clone.c
-msgid ""
-"--bundle-uri is incompatible with --depth, --shallow-since, and --shallow-"
-"exclude"
-msgstr ""
-"--bundle-uri tidak kompatibel dengan --depth, --shallow-since, dan --shallow-"
-"exclude"
+#: builtin/clone.c builtin/init-db.c setup.c
+#, c-format
+msgid "unknown ref storage format '%s'"
+msgstr "format penyimpanan referensi tidak dikenal '%s'"
 
 #: builtin/clone.c
 #, c-format
@@ -5471,13 +5487,13 @@
 "--stdin-commits]\n"
 "                       [--changed-paths] [--[no-]max-new-filters <n>] [--"
 "[no-]progress]\n"
-"                       <split options>"
+"                       <split-options>"
 msgstr ""
 "git commit-graph write [--object-dir <direktori>] [--append]\n"
 "                       [--split[=<strategi>]] [--reachable | --stdin-packs | "
 "--stdin-commits]\n"
-"                       [--changed-paths] [--[no-]max-new-filters <n>] [--[-"
-"no-]progress]\n"
+"                       [--changed-paths] [--[no-]max-new-filters <n>] [--"
+"[no-]progress]\n"
 "                       <opsi pemisahan>"
 
 #: builtin/commit-graph.c builtin/fetch.c builtin/log.c builtin/repack.c
@@ -8402,6 +8418,11 @@
 
 #: builtin/grep.c
 #, c-format
+msgid "unable to read tree %s"
+msgstr "tidak dapat membaca pohon %s"
+
+#: builtin/grep.c
+#, c-format
 msgid "unable to grep from object of type %s"
 msgstr "tidak dapan men-grep dari objek dengan tipe %s"
 
@@ -8929,11 +8950,6 @@
 msgid "SHA1 COLLISION FOUND WITH %s !"
 msgstr "TUMBUKAN SHA1 DITEMUKAN DENGAN %s !"
 
-#: builtin/index-pack.c builtin/pack-objects.c
-#, c-format
-msgid "unable to read %s"
-msgstr "tidak dapat membaca %s"
-
 #: builtin/index-pack.c
 #, c-format
 msgid "cannot read existing object info %s"
@@ -9111,11 +9127,13 @@
 msgid ""
 "git init [-q | --quiet] [--bare] [--template=<template-directory>]\n"
 "         [--separate-git-dir <git-dir>] [--object-format=<format>]\n"
+"         [--ref-format=<format>]\n"
 "         [-b <branch-name> | --initial-branch=<branch-name>]\n"
 "         [--shared[=<permissions>]] [<directory>]"
 msgstr ""
 "git init [-q | --quiet] [--bare] [--template=<direktori templat>]\n"
 "         [--separate-git-dir <direktori git>] [--object-format=<format>]\n"
+"\t  [--ref-format=<format>]\n"
 "         [-b <nama cabang> | --initial-branch=<nama cabang>]\n"
 "         [--shared[=<perizinan>]] [<direktori>]"
 
@@ -9280,7 +9298,7 @@
 "lacak evolusi rentang baris <awal>,<akhir> atau fungsi :<nama fungsi> dalam "
 "<berkas>"
 
-#: builtin/log.c builtin/shortlog.c bundle.c
+#: builtin/log.c builtin/replay.c builtin/shortlog.c bundle.c
 #, c-format
 msgid "unrecognized argument: %s"
 msgstr "argumen tidak dikenal: %s"
@@ -10036,6 +10054,14 @@
 "git merge-file [<opsi>] [-L <nama 1> [-L <asli> [-L <nama 2>]]] <berkas 1> "
 "<berkas asli> <berkas 2>"
 
+#: builtin/merge-file.c diff.c
+msgid ""
+"option diff-algorithm accepts \"myers\", \"minimal\", \"patience\" and "
+"\"histogram\""
+msgstr ""
+"opsi diff-algorithm terima \"myers\", \"minimal\", \"patience\" dan "
+"\"histogram\""
+
 #: builtin/merge-file.c
 msgid "send results to standard output"
 msgstr "kirim hasil ke keluaran standar"
@@ -10064,6 +10090,14 @@
 msgid "for conflicts, use a union version"
 msgstr "untuk konflik, gunakan versi bersatu"
 
+#: builtin/merge-file.c diff.c
+msgid "<algorithm>"
+msgstr "<algoritma>"
+
+#: builtin/merge-file.c diff.c
+msgid "choose a diff algorithm"
+msgstr "pilih algoritma diff"
+
 #: builtin/merge-file.c
 msgid "for conflicts, use this marker size"
 msgstr "untuk konflik, gunakan ukuran penanda ini"
@@ -10181,10 +10215,6 @@
 msgid "unknown strategy option: -X%s"
 msgstr "opsi strategi tidak dikenal: -X%s"
 
-#: builtin/merge-tree.c
-msgid "--merge-base is incompatible with --stdin"
-msgstr "--merge-base tidak kompatibel dengan --stdin"
-
 #: builtin/merge-tree.c builtin/notes.c
 #, c-format
 msgid "malformed input line: '%s'."
@@ -10342,7 +10372,7 @@
 msgid "Bad branch.%s.mergeoptions string: %s"
 msgstr "Untai branch.%s.mergeoptions jelek: %s"
 
-#: builtin/merge.c builtin/stash.c merge-recursive.c
+#: builtin/merge.c merge-recursive.c
 msgid "Unable to write index."
 msgstr "Tidak dapat menulis indeks."
 
@@ -10350,7 +10380,7 @@
 msgid "Not handling anything other than two heads merge."
 msgstr "Tak tangani apapun selain penggabungan dua kepala."
 
-#: builtin/merge.c t/helper/test-fast-rebase.c
+#: builtin/merge.c
 #, c-format
 msgid "unable to write %s"
 msgstr "tidak dapat menulis %s"
@@ -11365,6 +11395,11 @@
 
 #: builtin/pack-objects.c
 #, c-format
+msgid "invalid pack.allowPackReuse value: '%s'"
+msgstr "nilai pack.allowPackReuse tidak valid: '%s'"
+
+#: builtin/pack-objects.c
+#, c-format
 msgid ""
 "value of uploadpack.blobpackfileuri must be of the form '<object-hash> <pack-"
 "hash> <uri>' (got '%s')"
@@ -11694,10 +11729,10 @@
 #, c-format
 msgid ""
 "Total %<PRIu32> (delta %<PRIu32>), reused %<PRIu32> (delta %<PRIu32>), pack-"
-"reused %<PRIu32>"
+"reused %<PRIu32> (from %<PRIuMAX>)"
 msgstr ""
 "Total %<PRIu32> (delta %<PRIu32>), digunakan ulang %<PRIu32> (delta "
-"%<PRIu32>), pak yang digunakan ulang %<PRIu32>"
+"%<PRIu32>), pak yang digunakan ulang %<PRIu32> (dari %<PRIuMAX>)"
 
 #: builtin/pack-redundant.c
 msgid ""
@@ -12816,7 +12851,7 @@
 msgstr ""
 "Aksi --edit-todo hanya dapat digunakan selama pendasaran ulang interaktif."
 
-#: builtin/rebase.c t/helper/test-fast-rebase.c
+#: builtin/rebase.c
 msgid "Cannot read HEAD"
 msgstr "Tidak dapat membaca HEAD"
 
@@ -12864,14 +12899,6 @@
 
 #: builtin/rebase.c
 msgid ""
-"apply options are incompatible with rebase.autoSquash.  Consider adding --no-"
-"autosquash"
-msgstr ""
-"opsi penerapan tidak kompatibel dengan rebase.autoSquash. "
-"Pertimbangkanmenambahkan --no-autosquash"
-
-#: builtin/rebase.c
-msgid ""
 "apply options are incompatible with rebase.rebaseMerges.  Consider adding --"
 "no-rebase-merges"
 msgstr ""
@@ -13368,10 +13395,10 @@
 "Note: Some branches outside the refs/remotes/ hierarchy were not removed;\n"
 "to delete them, use:"
 msgstr[0] ""
-"Catatan: Sebuah cabang diluar hierarki refs/remotes tidak dihapus;\n"
+"Catatan: Sebuah cabang diluar hierarki refs/remotes/ tidak dihapus;\n"
 "untuk menghapusnya, gunakan:"
 msgstr[1] ""
-"Catatan: Beberapa cabang diluar hierarki refs/remotes tidak dihapus;\n"
+"Catatan: Beberapa cabang diluar hierarki refs/remotes/ tidak dihapus;\n"
 "untuk menghapusnya, gunakan:"
 
 #: builtin/remote.c
@@ -14108,6 +14135,94 @@
 msgid "only one pattern can be given with -l"
 msgstr "hanya satu pola yang dapat diberikan dengan -l"
 
+#: builtin/replay.c
+msgid "need some commits to replay"
+msgstr "butuh beberapa komit untuk dimainkan ulang"
+
+#: builtin/replay.c
+msgid "--onto and --advance are incompatible"
+msgstr "--onto dan --advance tidak kompatibel"
+
+#: builtin/replay.c
+msgid "all positive revisions given must be references"
+msgstr "semua revisi positif yang diberikan haruslah referensi"
+
+#: builtin/replay.c
+msgid "argument to --advance must be a reference"
+msgstr "argumen pada --advance harus sebuah referensi"
+
+#: builtin/replay.c
+msgid ""
+"cannot advance target with multiple sources because ordering would be ill-"
+"defined"
+msgstr ""
+"tidak dapat memajukan target dengan banyak sumber karena pengurutannya akan "
+"menjadi tidak jelas"
+
+#: builtin/replay.c
+msgid ""
+"cannot implicitly determine whether this is an --advance or --onto operation"
+msgstr ""
+"tidak dapat menentukan secara tidak langsung apakah ini operasi --advance "
+"atau --onto"
+
+#: builtin/replay.c
+msgid ""
+"cannot advance target with multiple source branches because ordering would "
+"be ill-defined"
+msgstr ""
+"tidak dapat memajukan target dengan banyak cabang sumber karena "
+"pengurutannya akan menjadi tidak jelas"
+
+#: builtin/replay.c
+msgid "cannot implicitly determine correct base for --onto"
+msgstr "tidak dapat menentukan secara tidak langsung dasar untuk --onto"
+
+#: builtin/replay.c
+msgid ""
+"(EXPERIMENTAL!) git replay ([--contained] --onto <newbase> | --advance "
+"<branch>) <revision-range>..."
+msgstr ""
+"(EKSPERIMENTAL!) git replay ([--contained] --onto <dasar baru> | --advance "
+"<cabang>) <rentang revisi>..."
+
+#: builtin/replay.c
+msgid "make replay advance given branch"
+msgstr "buat pemainan ulang memajukan caban yang diberikan"
+
+#: builtin/replay.c
+msgid "replay onto given commit"
+msgstr "mainkan ulang pada komit yang diberikan"
+
+#: builtin/replay.c
+msgid "advance all branches contained in revision-range"
+msgstr "majukan semua cabang yang berada pada rentang komit"
+
+#: builtin/replay.c
+msgid "option --onto or --advance is mandatory"
+msgstr "opsi --onto atau --advance diwajibkan"
+
+#: builtin/replay.c
+#, c-format
+msgid ""
+"some rev walking options will be overridden as '%s' bit in 'struct rev_info' "
+"will be forced"
+msgstr ""
+"beberapa opsi jalan revisi akan ditimpa oleh karena bit '%s' di 'struct "
+"rev_info' akan dipaksakan"
+
+#: builtin/replay.c
+msgid "error preparing revisions"
+msgstr "kesalahan menyiapkan revisi"
+
+#: builtin/replay.c
+msgid "replaying down to root commit is not supported yet!"
+msgstr "memainkan ulang ke komit akar belum didukung!"
+
+#: builtin/replay.c
+msgid "replaying merge commits is not supported yet!"
+msgstr "memainkan ulang komit penggabungan belum didukung!"
+
 #: builtin/rerere.c
 msgid ""
 "git rerere [clear | forget <pathspec>... | diff | status | remaining | gc]"
@@ -14370,18 +14485,6 @@
 msgid "unknown mode for --abbrev-ref: %s"
 msgstr "mode untuk --abbrev-ref tidak dikenal: %s"
 
-#: builtin/rev-parse.c revision.c
-msgid "--exclude-hidden cannot be used together with --branches"
-msgstr "--exclude-hidden tidak dapat digunakan bersamaan dengan --branches"
-
-#: builtin/rev-parse.c revision.c
-msgid "--exclude-hidden cannot be used together with --tags"
-msgstr "--exclude-hidden tidak dapat digunakan bersamaan dengan --tags"
-
-#: builtin/rev-parse.c revision.c
-msgid "--exclude-hidden cannot be used together with --remotes"
-msgstr "--exclude-hidden tidak dapat digunakan dengan --remotes"
-
 #: builtin/rev-parse.c setup.c
 msgid "this operation must be run in a work tree"
 msgstr "operasi ini harus dijalankan di dalam pohon kerja"
@@ -14894,11 +14997,6 @@
 "perlihatkan referensi dari masukan standar yang tidak ada dalam repositori "
 "lokal"
 
-#: builtin/show-ref.c
-#, c-format
-msgid "only one of '%s', '%s' or '%s' can be given"
-msgstr "hanya salah satu dari '%s', '%s', dan '%s' dapat diberikan"
-
 #: builtin/sparse-checkout.c
 msgid ""
 "git sparse-checkout (init | list | set | add | reapply | disable | check-"
@@ -16720,7 +16818,7 @@
 #: builtin/worktree.c
 #, c-format
 msgid ""
-"If you meant to create a worktree containing a new orphan branch\n"
+"If you meant to create a worktree containing a new unborn branch\n"
 "(branch with no commits) for this repository, you can do so\n"
 "using the --orphan flag:\n"
 "\n"
@@ -16734,7 +16832,7 @@
 #: builtin/worktree.c
 #, c-format
 msgid ""
-"If you meant to create a worktree containing a new orphan branch\n"
+"If you meant to create a worktree containing a new unborn branch\n"
 "(branch with no commits) for this repository, you can do so\n"
 "using the --orphan flag:\n"
 "\n"
@@ -16814,6 +16912,11 @@
 
 #: builtin/worktree.c
 #, c-format
+msgid "could not find created worktree '%s'"
+msgstr "tidak dapat menemukan pohon kerja yang dibuat '%s'"
+
+#: builtin/worktree.c
+#, c-format
 msgid "Preparing worktree (new branch '%s')"
 msgstr "Menyiapkan pohon kerja (cabang baru '%s')"
 
@@ -16859,11 +16962,6 @@
 "terlebih dahulu"
 
 #: builtin/worktree.c
-#, c-format
-msgid "'%s' and '%s' cannot be used together"
-msgstr "'%s' dan '%s' tidak dapat digunakan bersamaan"
-
-#: builtin/worktree.c
 msgid "checkout <branch> even if already checked out in other worktree"
 msgstr ""
 "checkout <cabang> bahkan jika sudah di-checkout pada pohon kerja lainnya"
@@ -16877,7 +16975,7 @@
 msgstr "buat atau setel ulang sebuah cabang"
 
 #: builtin/worktree.c
-msgid "create unborn/orphaned branch"
+msgid "create unborn branch"
 msgstr "buat cabang belum lahir/yatim"
 
 #: builtin/worktree.c
@@ -16907,12 +17005,8 @@
 
 #: builtin/worktree.c
 #, c-format
-msgid "options '%s', and '%s' cannot be used together"
-msgstr "Opsi '%s', dan '%s' tidak dapat digunakan bersamaan"
-
-#: builtin/worktree.c
-msgid "<commit-ish>"
-msgstr "<mirip-komit>"
+msgid "option '%s' and commit-ish cannot be used together"
+msgstr "opsi '%s' dan mirip-komit tidak dapat digunakan bersamaan"
 
 #: builtin/worktree.c
 msgid "added with --lock"
@@ -17715,6 +17809,12 @@
 msgstr "Buat, daftar, hapus referensi untuk mengganti objek"
 
 #: command-list.h
+msgid "EXPERIMENTAL: Replay commits on a new base, works with bare repos too"
+msgstr ""
+"EKSPERIMENTAL: Mainkan ulang komit pada dasar baru, dan juga bekerja pada "
+"repositori bare"
+
+#: command-list.h
 msgid "Generates a summary of pending changes"
 msgstr "Buat ringkasan perubahan tertunda"
 
@@ -18032,6 +18132,39 @@
 msgstr "berkas grafik komit terlalu kecil"
 
 #: commit-graph.c
+msgid "commit-graph oid fanout chunk is wrong size"
+msgstr "bingkah oid grafik komit kipas keluar salah ukuran"
+
+#: commit-graph.c
+msgid "commit-graph fanout values out of order"
+msgstr "nilai kipas keluar grafik komit tidak berurutan"
+
+#: commit-graph.c
+msgid "commit-graph OID lookup chunk is the wrong size"
+msgstr "bingkah OID pencarian grafik komit salah ukuran"
+
+#: commit-graph.c
+msgid "commit-graph commit data chunk is wrong size"
+msgstr "bingkah data grafik komit salah ukuran"
+
+#: commit-graph.c
+msgid "commit-graph generations chunk is wrong size"
+msgstr "bingkah generasi grafik komit salah ukuran"
+
+#: commit-graph.c
+msgid "commit-graph changed-path index chunk is too small"
+msgstr "bingkah indeks grafik komit jalur berubah terlalu kecil"
+
+#: commit-graph.c
+#, c-format
+msgid ""
+"ignoring too-small changed-path chunk (%<PRIuMAX> < %<PRIuMAX>) in commit-"
+"graph file"
+msgstr ""
+"mengabaikan bingkah jalur berubah yang terlalu kecil (%<PRIuMAX> < "
+"%<PRIuMAX>) di dalam berkas grafik komit"
+
+#: commit-graph.c
 #, c-format
 msgid "commit-graph signature %X does not match signature %X"
 msgstr "tanda tangan grafik komit %X tidak cocok dengan tanda tangan %X"
@@ -18052,6 +18185,19 @@
 msgstr "berkas grafik komit terlalu kecil untuk menyimpan %u bingkah"
 
 #: commit-graph.c
+msgid "commit-graph required OID fanout chunk missing or corrupted"
+msgstr ""
+"bingkah grafik komit OID kipas keluar yang diperlukan hilang atau rusak"
+
+#: commit-graph.c
+msgid "commit-graph required OID lookup chunk missing or corrupted"
+msgstr "bingkah grafik komit OID pencarian yang diperlukan hilang atau rusak"
+
+#: commit-graph.c
+msgid "commit-graph required commit data chunk missing or corrupted"
+msgstr "bingkah grafik komit data komit yang diperlukan hilang atau rusak"
+
+#: commit-graph.c
 msgid "commit-graph has no base graphs chunk"
 msgstr "grafik komit tidak punya bingkah grafik dasar"
 
@@ -18069,6 +18215,10 @@
 msgstr "jumlah komit pada grafik dasar terlalu tinggi: %<PRIuMAX>"
 
 #: commit-graph.c
+msgid "commit-graph chain file too small"
+msgstr "berkas rantai grafik komit terlalu kecil"
+
+#: commit-graph.c
 #, c-format
 msgid "invalid commit-graph chain: line '%s' not a hash"
 msgstr "rantai grafik komit tidak cocok: baris '%s' bukan sebuah hash"
@@ -18095,6 +18245,10 @@
 msgstr "data generasi luapan grafik komit terlalu kecil"
 
 #: commit-graph.c
+msgid "commit-graph extra-edges pointer out of bounds"
+msgstr "penunjuk tepi tambahan grafik komit di luar batas"
+
+#: commit-graph.c
 msgid "Loading known commits in commit graph"
 msgstr "Memuat komit yang dikenal di grafik komit"
 
@@ -19505,6 +19659,11 @@
 msgid "Unknown value for 'diff.submodule' config variable: '%s'"
 msgstr "Nilai tidak dikenal untuk variabel konfigurasi 'diff.submodule': '%s'"
 
+#: diff.c transport.c
+#, c-format
+msgid "unknown value for config '%s': %s"
+msgstr "nilai tidak dikenal untuk konfigurasi '%s': %s"
+
 #: diff.c
 #, c-format
 msgid ""
@@ -19602,14 +19761,6 @@
 msgstr "mode tidak valid '%s' dalam --color-moved-ws"
 
 #: diff.c
-msgid ""
-"option diff-algorithm accepts \"myers\", \"minimal\", \"patience\" and "
-"\"histogram\""
-msgstr ""
-"opsi diff-algorithm terima \"myers\", \"minimal\", \"patience\" dan "
-"\"histogram\""
-
-#: diff.c
 #, c-format
 msgid "invalid argument to %s"
 msgstr "argumen tidak valid ke %s"
@@ -19666,8 +19817,8 @@
 msgstr "keluarkan hanya baris terakhir --stat"
 
 #: diff.c
-msgid "<param1,param2>..."
-msgstr "<parameter 1,parameter 2>..."
+msgid "<param1>,<param2>..."
+msgstr "<parameter 1>,<parameter 2>..."
 
 #: diff.c
 msgid ""
@@ -19680,8 +19831,8 @@
 msgstr "sinonim untuk --dirstat=cumulative"
 
 #: diff.c
-msgid "synonym for --dirstat=files,param1,param2..."
-msgstr "sinonim untuk --dirstat=files,param1,param2..."
+msgid "synonym for --dirstat=files,<param1>,<param2>..."
+msgstr "sinonim untuk --dirstat=files,<parameter 1>,<parameter 2>..."
 
 #: diff.c
 msgid "warn if changes introduce conflict markers or whitespace errors"
@@ -19914,14 +20065,6 @@
 msgstr "buat diff menggunakan algoritma \"diff histogram\""
 
 #: diff.c
-msgid "<algorithm>"
-msgstr "<algoritma>"
-
-#: diff.c
-msgid "choose a diff algorithm"
-msgstr "pilih algoritma diff"
-
-#: diff.c
 msgid "<text>"
 msgstr "<teks>"
 
@@ -21730,6 +21873,14 @@
 msgstr "OID kipas-keluar indeks multipak salah ukuran"
 
 #: midx.c
+#, c-format
+msgid ""
+"oid fanout out of order: fanout[%d] = %<PRIx32> > %<PRIx32> = fanout[%d]"
+msgstr ""
+"kipas-keluar oid tidak berurutan: fanout[%d] =%<PRIx32> > %<PRIx32> = "
+"fanout[%d]"
+
+#: midx.c
 msgid "multi-pack-index OID lookup chunk is the wrong size"
 msgstr "bingkah pencarian OID kipas-keluar indeks multipak salah ukuran"
 
@@ -21791,6 +21942,15 @@
 msgstr "pack-int-id jelek: %u (total pak %u)"
 
 #: midx.c
+msgid "MIDX does not contain the BTMP chunk"
+msgstr "MIDX tidak berisi bingkah BTMP"
+
+#: midx.c
+#, c-format
+msgid "could not load bitmapped pack %<PRIu32>"
+msgstr "tidak dapat membuka pak terbitmap %<PRIu32>"
+
+#: midx.c
 msgid "multi-pack-index stores a 64-bit offset, but off_t is too small"
 msgstr "indeks multipak simpan offset 64-bit, tapi off_t terlalu kecil"
 
@@ -21898,14 +22058,6 @@
 msgstr "Mencari berkas pak yang direferensikan"
 
 #: midx.c
-#, c-format
-msgid ""
-"oid fanout out of order: fanout[%d] = %<PRIx32> > %<PRIx32> = fanout[%d]"
-msgstr ""
-"kipas-keluar oid tidak berurutan: fanout[%d] =%<PRIx32> > %<PRIx32> = "
-"fanout[%d]"
-
-#: midx.c
 msgid "the midx contains no oid"
 msgstr "midx tidak berisi oid"
 
@@ -22542,6 +22694,10 @@
 msgid "could not open pack %s"
 msgstr "tidak dapat membuka '%s'"
 
+#: pack-bitmap.c t/helper/test-read-midx.c
+msgid "could not determine MIDX preferred pack"
+msgstr "tidak dapat menentukan pak MIDX terpilih"
+
 #: pack-bitmap.c
 #, c-format
 msgid "preferred pack (%s) is invalid"
@@ -22567,6 +22723,11 @@
 
 #: pack-bitmap.c
 #, c-format
+msgid "unable to load pack: '%s', disabling pack-reuse"
+msgstr "tidak dapat memuat pak: '%s', mematikan penggunaan ulang pak"
+
+#: pack-bitmap.c
+#, c-format
 msgid "object '%s' not found in type bitmaps"
 msgstr "objek '%s' tidak ditemukan di bitmap tipe"
 
@@ -22680,6 +22841,10 @@
 msgid "multi-pack-index reverse-index chunk is the wrong size"
 msgstr "bingkah indeks balik multipak salah ukuran"
 
+#: pack-revindex.c
+msgid "could not determine preferred pack"
+msgstr "tidak dapat menentukan pak terpilih"
+
 #: pack-write.c
 msgid "cannot both write and verify reverse index"
 msgstr "tidak dapat kedua-duanya menulis dan memverifikasi indeks balik"
@@ -22762,11 +22927,6 @@
 
 #: parse-options.c
 #, c-format
-msgid "%s is incompatible with %s"
-msgstr "%s tidak kompatibel dengan %s"
-
-#: parse-options.c
-#, c-format
 msgid "ambiguous option: %s (could be --%s%s or --%s%s)"
 msgstr "opsi ambigu: %s (bisa jadi --%s%s atau --%s%s)"
 
@@ -23166,11 +23326,6 @@
 
 #: read-cache.c
 #, c-format
-msgid "unable to stat '%s'"
-msgstr "tidak dapat men-stat '%s'"
-
-#: read-cache.c
-#, c-format
 msgid "'%s' appears as both a file and as a directory"
 msgstr "'%s' muncul baik sebagai sebuah berkas dan sebagai sebuah direktori"
 
@@ -23855,17 +24010,12 @@
 msgid "cannot process '%s' and '%s' at the same time"
 msgstr "tidak dapat memproses '%s' dan '%s' pada waktu yang bersamaan"
 
-#: refs/files-backend.c
-#, c-format
-msgid "could not remove reference %s"
-msgstr "tidak dapat menghapus referensi %s"
-
-#: refs/files-backend.c refs/packed-backend.c
+#: refs.c
 #, c-format
 msgid "could not delete reference %s: %s"
 msgstr "tidak dapat menghapus referensi %s: %s"
 
-#: refs/files-backend.c refs/packed-backend.c
+#: refs.c
 #, c-format
 msgid "could not delete references: %s"
 msgstr "tidak dapat menghapus referensi: %s"
@@ -24100,9 +24250,9 @@
 msgstr ""
 "Tujuan yang Anda berikan bukan nama referensi penuh (seperti \n"
 "dimulai dengan \"refs/\"). Kami mencoba menebak maksud Anda dengan:\n"
-"- Cari referensi yang cocok dengan '%s' pada sisi remote.\n"
-"- Perika apakah <src> yang sedang didorong ('%s') adalah \n"
-"  referensi pada \"refs/{heads,tags}\". Bila demikian kami \n"
+"- mencari referensi yang cocok dengan '%s' pada sisi remote.\n"
+"- memeriksa apakah <src> yang sedang didorong ('%s') adalah \n"
+"  referensi pada \"refs/{heads,tags}/\". Bila demikian kami \n"
 "  menambahkan awalan refs/{heads,tags}/ yang bersesuaian pada sisi \n"
 "  remote.\n"
 "\n"
@@ -25042,7 +25192,7 @@
 msgid "corrupt author: missing date information"
 msgstr "pengarang rusak: informasi tanggal hilang"
 
-#: sequencer.c t/helper/test-fast-rebase.c
+#: sequencer.c
 #, c-format
 msgid "could not update %s"
 msgstr "tidak dapat memperbarui %s"
@@ -25537,6 +25687,10 @@
 msgstr "Stase otomatis sudah ada; membuat entri stase baru."
 
 #: sequencer.c
+msgid "autostash reference is a symref"
+msgstr "referensi autostase itu referensi simbolik"
+
+#: sequencer.c
 msgid "could not detach HEAD"
 msgstr "tidak dapat melepas HEAD"
 
@@ -25918,6 +26072,11 @@
 
 #: setup.c
 #, c-format
+msgid "re-init: ignored --initial-branch=%s"
+msgstr "re-init: --initial-branch=%s diabaikan"
+
+#: setup.c
+#, c-format
 msgid "unable to handle file type %d"
 msgstr "tidak dapat menangani tipe berkas %d"
 
@@ -25931,14 +26090,16 @@
 msgstr "mencoba menginisialisasi ulang repositori dengan hash yang berbeda"
 
 #: setup.c
-#, c-format
-msgid "%s already exists"
-msgstr "%s sudah ada"
+msgid ""
+"attempt to reinitialize repository with different reference storage format"
+msgstr ""
+"mencoba menginisialisasi ulang repositori dengan format penyimpanan "
+"referensi yang berbeda"
 
 #: setup.c
 #, c-format
-msgid "re-init: ignored --initial-branch=%s"
-msgstr "re-init: --initial-branch=%s diabaikan"
+msgid "%s already exists"
+msgstr "%s sudah ada"
 
 #: setup.c
 #, c-format
@@ -26264,14 +26425,6 @@
 msgid "number of entries in the cache tree to invalidate (default 0)"
 msgstr "jumlah entri di dalam pohon tembolok untuk dinirvalidasi (asali 0)"
 
-#: t/helper/test-fast-rebase.c
-msgid "unhandled options"
-msgstr "opsi tak tertangani"
-
-#: t/helper/test-fast-rebase.c
-msgid "error preparing revisions"
-msgstr "kesalahan menyiapkan revisi"
-
 #: t/helper/test-reach.c
 #, c-format
 msgid "commit %s is not marked reachable"
@@ -26469,10 +26622,6 @@
 msgid "invalid remote service path"
 msgstr "jalur layanan remote tidak valid"
 
-#: transport-helper.c transport.c
-msgid "operation not supported by protocol"
-msgstr "operasi tidak didukung oleh protokol"
-
 #: transport-helper.c
 #, c-format
 msgid "can't connect to subservice %s"
@@ -26638,11 +26787,6 @@
 
 #: transport.c
 #, c-format
-msgid "unknown value for config '%s': %s"
-msgstr "nilai tidak dikenal untuk konfigurasi '%s': %s"
-
-#: transport.c
-#, c-format
 msgid "transport '%s' not allowed"
 msgstr "transportasi '%s' tidak diperbolehkan"
 
@@ -26701,6 +26845,10 @@
 msgid "could not retrieve server-advertised bundle-uri list"
 msgstr "tidak dapat menerima daftar bundle-uri teriklankan server"
 
+#: transport.c
+msgid "operation not supported by protocol"
+msgstr "operasi tidak didukung oleh protokol"
+
 #: tree-walk.c
 msgid "too-short tree object"
 msgstr "objek pohon terlalu pendek"
@@ -27722,6 +27870,11 @@
 msgid "cannot %s: Your index contains uncommitted changes."
 msgstr "tidak dapat %s: indeks Anda berisi perubahan yang belum dikomit."
 
+#: xdiff-interface.c
+#, c-format
+msgid "unknown style '%s' given for '%s'"
+msgstr "nilai gaya tidak dikenal '%s' diberikan untuk '%s'"
+
 #: git-merge-octopus.sh git-merge-resolve.sh
 msgid ""
 "Error: Your local changes to the following files would be overwritten by "
diff --git a/po/sv.po b/po/sv.po
index cd2a86a..786c2f7 100644
--- a/po/sv.po
+++ b/po/sv.po
@@ -1,14 +1,14 @@
 # Swedish translations for Git.
-# Copyright (C) 2010-2023 Peter Krefting <peter@softwolves.pp.se>
+# Copyright (C) 2010-2024 Peter Krefting <peter@softwolves.pp.se>
 # This file is distributed under the same license as the Git package.
-# Peter Krefting <peter@softwolves.pp.se>, 2010-2023.
+# Peter Krefting <peter@softwolves.pp.se>, 2010-2024.
 #
 msgid ""
 msgstr ""
-"Project-Id-Version: git 2.43.0\n"
+"Project-Id-Version: git 2.44.0\n"
 "Report-Msgid-Bugs-To: Git Mailing List <git@vger.kernel.org>\n"
-"POT-Creation-Date: 2023-11-09 14:12+0100\n"
-"PO-Revision-Date: 2023-11-09 14:28+0100\n"
+"POT-Creation-Date: 2024-02-16 07:58+0100\n"
+"PO-Revision-Date: 2024-02-16 07:59+0100\n"
 "Last-Translator: Peter Krefting <peter@softwolves.pp.se>\n"
 "Language-Team: Svenska <tp-sv@listor.tp-sv.se>\n"
 "Language: sv\n"
@@ -1418,6 +1418,10 @@
 msgstr "Oväntad flagga --output"
 
 #, c-format
+msgid "extra command line parameter '%s'"
+msgstr "falsk konfigureringsparameter: ”%s”"
+
+#, c-format
 msgid "Unknown archive format '%s'"
 msgstr "Okänt arkivformat ”%s”"
 
@@ -1463,6 +1467,14 @@
 msgstr "felaktig --attr-source eller GIT_ATTR_SOURCE"
 
 #, c-format
+msgid "unable to stat '%s'"
+msgstr "kan inte ta status på ”%s”"
+
+#, c-format
+msgid "unable to read %s"
+msgstr "kunde inte läsa %s"
+
+#, c-format
 msgid "Badly quoted content in file '%s': %s"
 msgstr "Felaktigt citerat innehåll i filen ”%s”: %s"
 
@@ -2582,7 +2594,7 @@
 msgstr "visa inte objektnamn för gränsincheckningar (Standard: av)"
 
 msgid "do not treat root commits as boundaries (Default: off)"
-msgstr "vehandla inte rotincheckningar som gränser (Standard: av)"
+msgstr "behandla inte rotincheckningar som gränser (Standard: av)"
 
 msgid "show work cost statistics"
 msgstr "visa statistik över arbetskostnad"
@@ -2734,12 +2746,12 @@
 msgstr "kunde inte slå upp incheckningsobjekt för ”%s”"
 
 #, c-format
-msgid ""
-"the branch '%s' is not fully merged.\n"
-"If you are sure you want to delete it, run 'git branch -D %s'"
-msgstr ""
-"grenen ”%s” har inte slagits samman i sin helhet.\n"
-"Om du är säker på att du vill ta bort den, kör ”git branch -D %s”"
+msgid "the branch '%s' is not fully merged"
+msgstr "grenen ”%s” har inte slagits samman i sin helhet"
+
+#, c-format
+msgid "If you are sure you want to delete it, run 'git branch -D %s'"
+msgstr "Om du är säker på att du vill ta bort den, kör ”git branch -D %s”"
 
 msgid "update of config-file failed"
 msgstr "misslyckades uppdatera konfigurationsfil"
@@ -3772,8 +3784,8 @@
 msgid "new-branch"
 msgstr "ny-gren"
 
-msgid "new unparented branch"
-msgstr "ny gren utan förälder"
+msgid "new unborn branch"
+msgstr "ny ofödd gren"
 
 msgid "update ignored files (default)"
 msgstr "uppdatera ignorerade filer (standard)"
@@ -4023,9 +4035,6 @@
 "clean.requireForce har standardvärdet true och varken -i, -n eller -f "
 "angavs; vägrar städa"
 
-msgid "-x and -X cannot be used together"
-msgstr "-x och -X kan inte användas samtidigt"
-
 msgid "git clone [<options>] [--] <repo> [<dir>]"
 msgstr "git clone [<flaggor>] [--] <arkiv> [<kat>]"
 
@@ -4113,6 +4122,9 @@
 msgid "separate git dir from working tree"
 msgstr "separera gitkatalogen från arbetskatalogen"
 
+msgid "specify the reference format to use"
+msgstr "använd referensformatet som ska användas"
+
 msgid "key=value"
 msgstr "nyckel=värde"
 
@@ -4228,12 +4240,9 @@
 msgid "You must specify a repository to clone."
 msgstr "Du måste ange ett arkiv att klona."
 
-msgid ""
-"--bundle-uri is incompatible with --depth, --shallow-since, and --shallow-"
-"exclude"
-msgstr ""
-"--bundle-uri är inkompatibelt med --depth, --shallow-since och --shallow-"
-"exclude"
+#, c-format
+msgid "unknown ref storage format '%s'"
+msgstr "okänt format för lagring av referenser ”%s”"
 
 #, c-format
 msgid "repository '%s' does not exist"
@@ -4361,7 +4370,7 @@
 "--stdin-commits]\n"
 "                       [--changed-paths] [--[no-]max-new-filters <n>] [--"
 "[no-]progress]\n"
-"                       <split options>"
+"                       <split-options>"
 msgstr ""
 "git commit-graph write [--object-dir <kat>] [--append]\n"
 "                       [--split[=<strategi>]] [--reachable | --stdin-packs | "
@@ -6675,6 +6684,10 @@
 msgstr "kunde inte läsa träd (%s)"
 
 #, c-format
+msgid "unable to read tree %s"
+msgstr "kunde inte läsa trädet %s"
+
+#, c-format
 msgid "unable to grep from object of type %s"
 msgstr "kunde inte ”grep” från objekt av typen %s"
 
@@ -7081,10 +7094,6 @@
 msgstr "SHA1-KOLLISION UPPTÄCKT VID %s !"
 
 #, c-format
-msgid "unable to read %s"
-msgstr "kunde inte läsa %s"
-
-#, c-format
 msgid "cannot read existing object info %s"
 msgstr "kan inte läsa information om befintligt objekt %s"
 
@@ -7224,11 +7233,13 @@
 msgid ""
 "git init [-q | --quiet] [--bare] [--template=<template-directory>]\n"
 "         [--separate-git-dir <git-dir>] [--object-format=<format>]\n"
+"         [--ref-format=<format>]\n"
 "         [-b <branch-name> | --initial-branch=<branch-name>]\n"
 "         [--shared[=<permissions>]] [<directory>]"
 msgstr ""
 "git init [-q | --quiet] [--bare] [--template=<mallkatalog>]\n"
 "         [--separate-git-dir <git-kat>] [--object-format=<format>]\n"
+"         [--ref-format=<format>]\n"
 "         [-b <grennamn> | --initial-branch=<grennamn>]\n"
 "         [--shared[=<behörigheter>]] [<katalog>]"
 
@@ -7927,6 +7938,12 @@
 "git merge-file [<alternativ>] [-L <namn1> [-L <orig> [-L <namn2>]]] <fil1> "
 "<origfil> <fil2>"
 
+msgid ""
+"option diff-algorithm accepts \"myers\", \"minimal\", \"patience\" and "
+"\"histogram\""
+msgstr ""
+"flaggan diff-algorithm godtar ”myers”, ”minimal”, ”patience” och ”histogram”"
+
 msgid "send results to standard output"
 msgstr "sänd resultat till standard ut"
 
@@ -7948,6 +7965,12 @@
 msgid "for conflicts, use a union version"
 msgstr "för konflikter, använd en förenad version"
 
+msgid "<algorithm>"
+msgstr "<algoritm>"
+
+msgid "choose a diff algorithm"
+msgstr "välj en diff-algoritm"
+
 msgid "for conflicts, use this marker size"
 msgstr "för konflikter, använd denna markörstorlek"
 
@@ -8038,9 +8061,6 @@
 msgid "unknown strategy option: -X%s"
 msgstr "okänd strategiflagga: -X%s"
 
-msgid "--merge-base is incompatible with --stdin"
-msgstr "--merge-base är inkompatibel med --stdin"
-
 #, c-format
 msgid "malformed input line: '%s'."
 msgstr "felaktig indatarad: ”%s”."
@@ -8967,6 +8987,10 @@
 msgstr "deltaräknaren är inkonsekvent"
 
 #, c-format
+msgid "invalid pack.allowPackReuse value: '%s'"
+msgstr "felaktigt värde för pack.allowPackReuse: ”%s”"
+
+#, c-format
 msgid ""
 "value of uploadpack.blobpackfileuri must be of the form '<object-hash> <pack-"
 "hash> <uri>' (got '%s')"
@@ -9219,10 +9243,10 @@
 #, c-format
 msgid ""
 "Total %<PRIu32> (delta %<PRIu32>), reused %<PRIu32> (delta %<PRIu32>), pack-"
-"reused %<PRIu32>"
+"reused %<PRIu32> (from %<PRIuMAX>)"
 msgstr ""
 "Totalt %<PRIu32> (delta %<PRIu32>), återanvände %<PRIu32> (delta %<PRIu32>), "
-"paket-återanvända %<PRIu32>"
+"paket-återanvända %<PRIu32> (från %<PRIuMAX>)"
 
 msgid ""
 "'git pack-redundant' is nominated for removal.\n"
@@ -10176,13 +10200,6 @@
 msgstr "flaggan ”C” förväntar ett numeriskt värde"
 
 msgid ""
-"apply options are incompatible with rebase.autoSquash.  Consider adding --no-"
-"autosquash"
-msgstr ""
-"argument för ”apply” är inkompatibla med rebase.autoSquash. Överväg att "
-"lägga till --no-autosquash"
-
-msgid ""
 "apply options are incompatible with rebase.rebaseMerges.  Consider adding --"
 "no-rebase-merges"
 msgstr ""
@@ -11167,6 +11184,76 @@
 msgid "only one pattern can be given with -l"
 msgstr "endast ett mönster kan anges med -l"
 
+msgid "need some commits to replay"
+msgstr "behöver några incheckningar för omspelning"
+
+msgid "--onto and --advance are incompatible"
+msgstr "--onto och --advance kan inte kombineras"
+
+msgid "all positive revisions given must be references"
+msgstr "alla positiva revisioner som anges måste vara referenser"
+
+msgid "argument to --advance must be a reference"
+msgstr "argumentet till --advance måste vara en referens"
+
+msgid ""
+"cannot advance target with multiple sources because ordering would be ill-"
+"defined"
+msgstr ""
+"kan inte flytta målet framåt när det finns flera källor eftersom ordningen "
+"inte kan fastställas"
+
+msgid ""
+"cannot implicitly determine whether this is an --advance or --onto operation"
+msgstr ""
+"kan inte avgöra om den underförstådda processen är --advance eller --onto"
+
+msgid ""
+"cannot advance target with multiple source branches because ordering would "
+"be ill-defined"
+msgstr ""
+"kan inte flytta målet framåt när det finns flera källgrenar eftersom "
+"ordningen inte kan fastställas"
+
+msgid "cannot implicitly determine correct base for --onto"
+msgstr "kan inte avgöra den underförstådda basen för --onto"
+
+msgid ""
+"(EXPERIMENTAL!) git replay ([--contained] --onto <newbase> | --advance "
+"<branch>) <revision-range>..."
+msgstr ""
+"(EXPERIMENTELLT!) git replay ([--contained] --onto <nybas> | --advance "
+"<gren>) <revisions-intervall>..."
+
+msgid "make replay advance given branch"
+msgstr "låt omspelningen flytta den givna grenen framåt"
+
+msgid "replay onto given commit"
+msgstr "spela om ovanpå en given incheckning"
+
+msgid "advance all branches contained in revision-range"
+msgstr "flytta alla grenar som finns i revisionsintervallet framåt"
+
+msgid "option --onto or --advance is mandatory"
+msgstr "flaggan --onto eller --advance måste anges"
+
+#, c-format
+msgid ""
+"some rev walking options will be overridden as '%s' bit in 'struct rev_info' "
+"will be forced"
+msgstr ""
+"några flaggor för revisionstraversering kommer överstyras eftersom ”%s”-"
+"biten i ”struct rev_info” kommer att tvingas"
+
+msgid "error preparing revisions"
+msgstr "fel när revisioner skulle förberedas"
+
+msgid "replaying down to root commit is not supported yet!"
+msgstr "kan ännu inte spela om hela vägen ned till rotincheckningen!"
+
+msgid "replaying merge commits is not supported yet!"
+msgstr "kan ännu inte spela om sammanslagningsincheckningar!"
+
 msgid ""
 "git rerere [clear | forget <pathspec>... | diff | status | remaining | gc]"
 msgstr ""
@@ -11373,15 +11460,6 @@
 msgid "unknown mode for --abbrev-ref: %s"
 msgstr "okänt läge för --abbrev-ref: %s"
 
-msgid "--exclude-hidden cannot be used together with --branches"
-msgstr "--exclude-hidden kan endast användas tillsammans med --branches"
-
-msgid "--exclude-hidden cannot be used together with --tags"
-msgstr "--exclude-hidden kan  kan inte användas tillsammans med --tags"
-
-msgid "--exclude-hidden cannot be used together with --remotes"
-msgstr "--exclude-hidden kan  kan inte användas tillsammans med --remotes"
-
 msgid "this operation must be run in a work tree"
 msgstr "funktionen måste köras i en arbetskatalog"
 
@@ -11784,10 +11862,6 @@
 msgid "show refs from stdin that aren't in local repository"
 msgstr "visa referenser från standard in som inte finns i lokalt arkiv"
 
-#, c-format
-msgid "only one of '%s', '%s' or '%s' can be given"
-msgstr "endast en av ”%s”, ”%s” och ”%s” kan anges"
-
 msgid ""
 "git sparse-checkout (init | list | set | add | reapply | disable | check-"
 "rules) [<options>]"
@@ -13232,13 +13306,13 @@
 
 #, c-format
 msgid ""
-"If you meant to create a worktree containing a new orphan branch\n"
+"If you meant to create a worktree containing a new unborn branch\n"
 "(branch with no commits) for this repository, you can do so\n"
 "using the --orphan flag:\n"
 "\n"
 "    git worktree add --orphan -b %s %s\n"
 msgstr ""
-"Om meningen var att skapa en arbetskatalog från en ny föräldrals\n"
+"Om meningen var att skapa en arbetskatalog från en ny ofödd\n"
 "gren (gren utan incheckningar) för det här arkivet kan du göra\n"
 "det med flaggan --orphan:\n"
 "\n"
@@ -13246,13 +13320,13 @@
 
 #, c-format
 msgid ""
-"If you meant to create a worktree containing a new orphan branch\n"
+"If you meant to create a worktree containing a new unborn branch\n"
 "(branch with no commits) for this repository, you can do so\n"
 "using the --orphan flag:\n"
 "\n"
 "    git worktree add --orphan %s\n"
 msgstr ""
-"Om meningen var att skapa en arbetskatalog från en ny föräldrals\n"
+"Om meningen var att skapa en arbetskatalog från en ny ofödd\n"
 "gren (gren utan incheckningar) för det här arkivet kan du göra\n"
 "det med flaggan --orphan:\n"
 "\n"
@@ -13315,6 +13389,10 @@
 msgstr "initierar"
 
 #, c-format
+msgid "could not find created worktree '%s'"
+msgstr "kunde inte hitta den skapade arbetskatalogen ”%s”"
+
+#, c-format
 msgid "Preparing worktree (new branch '%s')"
 msgstr "Förbereder arbetskatalog (ny gren ”%s”)"
 
@@ -13352,10 +13430,6 @@
 "finns, avslutar; använd ”add -f” för att överstyra eller hämta från en fjärr "
 "först"
 
-#, c-format
-msgid "'%s' and '%s' cannot be used together"
-msgstr "”%s” och ”%s” kan inte användas samtidigt"
-
 msgid "checkout <branch> even if already checked out in other worktree"
 msgstr ""
 "checka ut <gren> även om den redan är utcheckad i en annan arbetskatalog"
@@ -13366,8 +13440,8 @@
 msgid "create or reset a branch"
 msgstr "skapa eller återställ en gren"
 
-msgid "create unborn/orphaned branch"
-msgstr "skapa en ofödd/övergiven gren"
+msgid "create unborn branch"
+msgstr "skapa en ofödd gren"
 
 msgid "populate the new working tree"
 msgstr "befolka den nya arbetskatalogen"
@@ -13389,11 +13463,8 @@
 msgstr "flaggorna ”%s”, ”%s” och ”%s” kan inte användas samtidigt"
 
 #, c-format
-msgid "options '%s', and '%s' cannot be used together"
-msgstr "flaggorna ”%s” och ”%s” kan inte användas samtidigt"
-
-msgid "<commit-ish>"
-msgstr "<incheckning-igt>"
+msgid "option '%s' and commit-ish cannot be used together"
+msgstr "flaggorna ”%s” och incheckning-igt kan inte användas samtidigt"
 
 msgid "added with --lock"
 msgstr "lagt till med --lock"
@@ -14006,6 +14077,11 @@
 msgid "Create, list, delete refs to replace objects"
 msgstr "Skapa, visa, ta bort referenser för att ersätta objekt"
 
+msgid "EXPERIMENTAL: Replay commits on a new base, works with bare repos too"
+msgstr ""
+"EXPERIMENTELLT: Spela om incheckningar ovanpå en ny bas, fungerar även med "
+"nakna arkiv"
+
 msgid "Generates a summary of pending changes"
 msgstr "Skapar en sammanfattning av väntande ändringar"
 
@@ -14243,6 +14319,32 @@
 msgid "commit-graph file is too small"
 msgstr "incheckningsgraffilen %s är för liten"
 
+msgid "commit-graph oid fanout chunk is wrong size"
+msgstr "incheckningsgrafens oid-utbredningsstycke har fel storlek"
+
+msgid "commit-graph fanout values out of order"
+msgstr "incheckningsgrafens utbredningsvärden är i fel ordning"
+
+msgid "commit-graph OID lookup chunk is the wrong size"
+msgstr "incheckningsgrafens OID-uppslagningsstycket har fel storlek"
+
+msgid "commit-graph commit data chunk is wrong size"
+msgstr "incheckningsgrafens incheckningsdatastycke har fel storlek"
+
+msgid "commit-graph generations chunk is wrong size"
+msgstr "incheckningsgrafens generationsstycke har fel storlek"
+
+msgid "commit-graph changed-path index chunk is too small"
+msgstr "incheckningsgrafens ändrade-sökvägar-indexstycke är förö litet"
+
+#, c-format
+msgid ""
+"ignoring too-small changed-path chunk (%<PRIuMAX> < %<PRIuMAX>) in commit-"
+"graph file"
+msgstr ""
+"ignorerar för litet ändrade-sökvägar-stycke (%<PRIuMAX> < %<PRIuMAX>) i "
+"incheckningsgraffilen"
+
 #, c-format
 msgid "commit-graph signature %X does not match signature %X"
 msgstr "incheckningsgrafens signatur %X stämmer inte med signaturen %X"
@@ -14259,6 +14361,18 @@
 msgid "commit-graph file is too small to hold %u chunks"
 msgstr "incheckningsgraffilen är för liten för att innehålla %u stycken"
 
+msgid "commit-graph required OID fanout chunk missing or corrupted"
+msgstr ""
+"incheckningsgrafens nödvändiga OID-utbredningsstycke saknas eller är trasigt"
+
+msgid "commit-graph required OID lookup chunk missing or corrupted"
+msgstr ""
+"incheckningsgrafens nödvändiga OID-uppslagningsstycke saknas eller är trasigt"
+
+msgid "commit-graph required commit data chunk missing or corrupted"
+msgstr ""
+"incheckningsgrafens nödvändiga incheckningsdatastycke saknas eller är trasigt"
+
 msgid "commit-graph has no base graphs chunk"
 msgstr "incheckningsgrafen har inga bas-graf-stycken"
 
@@ -14272,6 +14386,9 @@
 msgid "commit count in base graph too high: %<PRIuMAX>"
 msgstr "antalet incheckningar i basgrafen för högt: %<PRIuMAX>"
 
+msgid "commit-graph chain file too small"
+msgstr "incheckningsgrafens kedjefil är för liten"
+
 #, c-format
 msgid "invalid commit-graph chain: line '%s' not a hash"
 msgstr "ogiltig incheckingsgrafkedja: rad ”%s” är inte ett hash-värde"
@@ -14292,6 +14409,9 @@
 msgid "commit-graph overflow generation data is too small"
 msgstr "incheckningsgrafens spillgenerationsdata är för liten"
 
+msgid "commit-graph extra-edges pointer out of bounds"
+msgstr "incheckningsgrafens extra-kant-pekare är utanför intervallet"
+
 msgid "Loading known commits in commit graph"
 msgstr "Läser in kända incheckningar i incheckningsgraf"
 
@@ -15431,6 +15551,10 @@
 msgstr "Okänt värde för konfigurationsvariabeln ”diff.submodule”: ”%s”"
 
 #, c-format
+msgid "unknown value for config '%s': %s"
+msgstr "okänt värde för inställningen ”%s”: %s"
+
+#, c-format
 msgid ""
 "Found errors in 'diff.dirstat' config variable:\n"
 "%s"
@@ -15509,12 +15633,6 @@
 msgid "invalid mode '%s' in --color-moved-ws"
 msgstr "ogiltigt läge %s” i --color-moved-ws"
 
-msgid ""
-"option diff-algorithm accepts \"myers\", \"minimal\", \"patience\" and "
-"\"histogram\""
-msgstr ""
-"flaggan diff-algorithm godtar ”myers”, ”minimal”, ”patience” och ”histogram”"
-
 #, c-format
 msgid "invalid argument to %s"
 msgstr "ogiltigt argument för %s"
@@ -15558,8 +15676,8 @@
 msgid "output only the last line of --stat"
 msgstr "skriv bara ut den sista raden för --stat"
 
-msgid "<param1,param2>..."
-msgstr "<param1,param2>..."
+msgid "<param1>,<param2>..."
+msgstr "<param1>,<param2>..."
 
 msgid ""
 "output the distribution of relative amount of changes for each sub-directory"
@@ -15569,8 +15687,8 @@
 msgid "synonym for --dirstat=cumulative"
 msgstr "synonym för --dirstat=cumulative"
 
-msgid "synonym for --dirstat=files,param1,param2..."
-msgstr "synonym för --dirstat=filer,param1,param2..."
+msgid "synonym for --dirstat=files,<param1>,<param2>..."
+msgstr "synonym för --dirstat=filer,<param1>,<param2>..."
 
 msgid "warn if changes introduce conflict markers or whitespace errors"
 msgstr "varna om ändringar introducerar konfliktmarkörer eller blankstegsfel"
@@ -15744,12 +15862,6 @@
 msgid "generate diff using the \"histogram diff\" algorithm"
 msgstr "skapa diffar med algoritmen ”histogram diff”"
 
-msgid "<algorithm>"
-msgstr "<algoritm>"
-
-msgid "choose a diff algorithm"
-msgstr "välj en diff-algoritm"
-
 msgid "<text>"
 msgstr "<text>"
 
@@ -17220,6 +17332,12 @@
 msgid "multi-pack-index OID fanout is of the wrong size"
 msgstr "OID-utbredning för multi-pack-index har fel storlek"
 
+#, c-format
+msgid ""
+"oid fanout out of order: fanout[%d] = %<PRIx32> > %<PRIx32> = fanout[%d]"
+msgstr ""
+"oid-utbredning i fel ordning: fanout[%d] = %<PRIx32> > %<PRIx32> = fanout[%d]"
+
 msgid "multi-pack-index OID lookup chunk is the wrong size"
 msgstr "OID-uppslagningsstycket för multi-pack-index har fel storlek"
 
@@ -17270,6 +17388,13 @@
 msgid "bad pack-int-id: %u (%u total packs)"
 msgstr "bad pack-int-id: %u (%u paket totalt)"
 
+msgid "MIDX does not contain the BTMP chunk"
+msgstr "MIDX innehåller inte BTMP-stycket"
+
+#, c-format
+msgid "could not load bitmapped pack %<PRIu32>"
+msgstr "kunde inte läsa det bitmappade paketet %<PRIu32>"
+
 msgid "multi-pack-index stores a 64-bit offset, but off_t is too small"
 msgstr "multi-pack-index innehåller 64-bitars offset, men off_t är för liten"
 
@@ -17353,12 +17478,6 @@
 msgid "Looking for referenced packfiles"
 msgstr "Ser efter refererade packfiler"
 
-#, c-format
-msgid ""
-"oid fanout out of order: fanout[%d] = %<PRIx32> > %<PRIx32> = fanout[%d]"
-msgstr ""
-"oid-utbredning i fel ordning: fanout[%d] = %<PRIx32> > %<PRIx32> = fanout[%d]"
-
 msgid "the midx contains no oid"
 msgstr "midx saknar oid"
 
@@ -17875,6 +17994,9 @@
 msgid "could not open pack %s"
 msgstr "kunde inte öppna paketfilen %s"
 
+msgid "could not determine MIDX preferred pack"
+msgstr "kunde inte bestämma det föredragna MIDX-paketet"
+
 #, c-format
 msgid "preferred pack (%s) is invalid"
 msgstr "föredragen paketfil (%s) är ogiltig"
@@ -17895,6 +18017,10 @@
 msgstr "trasig ewah-bitkarta: avhugget huvud för bitkarta för incheckning ”%s”"
 
 #, c-format
+msgid "unable to load pack: '%s', disabling pack-reuse"
+msgstr "kunde inte läsa paketet: ”%s”, inaktiverar återanvändning av paket"
+
+#, c-format
 msgid "object '%s' not found in type bitmaps"
 msgstr "objektet ”%s” hittades inte i typbitkartor"
 
@@ -17985,6 +18111,9 @@
 msgid "multi-pack-index reverse-index chunk is the wrong size"
 msgstr "baklängesindex-stycke för multi-pack-index har fel storlek"
 
+msgid "could not determine preferred pack"
+msgstr "kunde inte bestämma föredraget paket"
+
 msgid "cannot both write and verify reverse index"
 msgstr "kan inte både skriva och bekräfta reverse-index"
 
@@ -18048,10 +18177,6 @@
 msgstr "%s förväntar ett icke-negativt heltalsvärde, med valfritt k/m/g-suffix"
 
 #, c-format
-msgid "%s is incompatible with %s"
-msgstr "%s är inkompatibel med %s"
-
-#, c-format
 msgid "ambiguous option: %s (could be --%s%s or --%s%s)"
 msgstr "tvetydig flagga: %s (kan vara --%s%s eller --%s%s)"
 
@@ -18365,10 +18490,6 @@
 msgstr "kan inte lägga till ”%s” till indexet"
 
 #, c-format
-msgid "unable to stat '%s'"
-msgstr "kan inte ta status på ”%s”"
-
-#, c-format
 msgid "'%s' appears as both a file and as a directory"
 msgstr "”%s” finns både som en fil och en katalog"
 
@@ -18941,10 +19062,6 @@
 msgstr "kan inte hantera ”%s” och ”%s” samtidigt"
 
 #, c-format
-msgid "could not remove reference %s"
-msgstr "kunde inte ta bort referensen %s"
-
-#, c-format
 msgid "could not delete reference %s: %s"
 msgstr "kunde inte ta bort referensen %s: %s"
 
@@ -19138,7 +19255,7 @@
 "- Se efter en referens som motsvarar ”%s” på fjärrsidan.\n"
 "- Se om <källan> som sänds (”%s”)\n"
 "  är en referens i ”refs/{heads,tags}/”. Om så lägger vi till\n"
-"  motsvarande refs/{heads,tags}/-prefix på fjärrsidan.\n"
+"  motsvarande ”refs/{heads,tags}/”-prefix på fjärrsidan.\n"
 "\n"
 "Inget av dem fungerade, så vi gav upp. Ange fullständig referens."
 
@@ -20299,6 +20416,9 @@
 msgid "Autostash exists; creating a new stash entry."
 msgstr "Autostash finns; skapar ny stash-post."
 
+msgid "autostash reference is a symref"
+msgstr "autostash-referensen är en symbolisk referens"
+
 msgid "could not detach HEAD"
 msgstr "kunde inte koppla från HEAD"
 
@@ -20611,6 +20731,10 @@
 msgstr "ogiltigt namn på första gren: ”%s”"
 
 #, c-format
+msgid "re-init: ignored --initial-branch=%s"
+msgstr "re-init: ignorerade --initial-branch=%s"
+
+#, c-format
 msgid "unable to handle file type %d"
 msgstr "kan inte hantera filtyp %d"
 
@@ -20621,15 +20745,15 @@
 msgid "attempt to reinitialize repository with different hash"
 msgstr "försöker initiera arkivet på nytt med annan hash"
 
+msgid ""
+"attempt to reinitialize repository with different reference storage format"
+msgstr "försöker initiera arkivet på nytt med annat referenslagringsformat"
+
 #, c-format
 msgid "%s already exists"
 msgstr "%s finns redan"
 
 #, c-format
-msgid "re-init: ignored --initial-branch=%s"
-msgstr "re-init: ignorerade --initial-branch=%s"
-
-#, c-format
 msgid "Reinitialized existing shared Git repository in %s%s\n"
 msgstr "Ominitierade befintligt delat Git-arkiv i %s%s\n"
 
@@ -20893,12 +21017,6 @@
 msgid "number of entries in the cache tree to invalidate (default 0)"
 msgstr "antal poster i cacheträdet att ogiltigförklara (förval är 0)"
 
-msgid "unhandled options"
-msgstr "flaggor som inte hanterats"
-
-msgid "error preparing revisions"
-msgstr "fel när revisioner skulle förberedas"
-
 #, c-format
 msgid "commit %s is not marked reachable"
 msgstr "incheckning %s är inte märkt nåbar"
@@ -21054,9 +21172,6 @@
 msgid "invalid remote service path"
 msgstr "felaktig sökväg till fjärrtjänst"
 
-msgid "operation not supported by protocol"
-msgstr "funktionen stöds inte av protokollet"
-
 #, c-format
 msgid "can't connect to subservice %s"
 msgstr "kan inte ansluta till undertjänsten %s"
@@ -21187,10 +21302,6 @@
 msgstr "stöd för protokoll v2 ännu ej implementerat"
 
 #, c-format
-msgid "unknown value for config '%s': %s"
-msgstr "okänt värde för inställningen ”%s”: %s"
-
-#, c-format
 msgid "transport '%s' not allowed"
 msgstr "transporten ”%s” tillåts inte"
 
@@ -21243,6 +21354,9 @@
 msgid "could not retrieve server-advertised bundle-uri list"
 msgstr "kunde inte hämta bundle-uri-listan som servern annonserade"
 
+msgid "operation not supported by protocol"
+msgstr "funktionen stöds inte av protokollet"
+
 msgid "too-short tree object"
 msgstr "trädobjekt för kort"
 
@@ -22066,6 +22180,10 @@
 msgid "cannot %s: Your index contains uncommitted changes."
 msgstr "kan inte %s: Ditt index innehåller ändringar som inte checkats in."
 
+#, c-format
+msgid "unknown style '%s' given for '%s'"
+msgstr "okänd stil ”%s” angavs för ”%s”"
+
 msgid ""
 "Error: Your local changes to the following files would be overwritten by "
 "merge"
diff --git a/po/tr.po b/po/tr.po
index f01962d..19d6661 100644
--- a/po/tr.po
+++ b/po/tr.po
@@ -1,8 +1,8 @@
 # Turkish translations for Git
 # Git Türkçe çevirileri
-# Copyright (C) 2020-2023 Emir SARI <emir_sari@icloud.com>
+# Copyright (C) 2020-2024 Emir SARI <emir_sari@icloud.com>
 # This file is distributed under the same license as the Git package.
-# Emir SARI <emir_sari@icloud.com>, 2020-2023
+# Emir SARI <emir_sari@icloud.com>, 2020-2024
 #
 # ######################################################### #
 #     Git Türkçe kavramlar dizini / Git Turkish Glossary    #
@@ -27,6 +27,7 @@
 # detached HEAD               | ayrık HEAD                  #
 # dirty                       | kirli                       #
 # evil merge                  | uğursuz birleştirme         #
+# fanout                      | çıkış sayısı                #
 # fast-forward                | ileri sarım/sarmak          #
 # fetch                       | getirme(k)                  #
 # fixup                       | düzeltmek                   #
@@ -48,10 +49,10 @@
 # pathspec                    | yol belirteci               #
 # pattern                     | dizgi                       #
 # porcelain                   | okunabilir                  #
-# prune                       | budamak                     #
+# prune                       | buda(mak)                     #
 # pseudoref                   | yalancıktan başvuru         #
-# pull                        | çekme(k)                    #
-# push                        | itme(k)                     #
+# pull                        | çek(mek)                    #
+# push                        | it(mek)                     #
 # rebase                      | yeniden temellendirme(k)    #
 # record                      | kayıt yaz(mak)              #
 # ref                         | başvuru                     #
@@ -85,6 +86,7 @@
 # trailer                     | artbilgi                    #
 # tree                        | ağaç                        #
 # treeish                     | ağacımsı                    #
+# unborn                      | henüz doğmamış (dal)        #
 # unstage                     | hazırlıktan çıkar(mak)      #
 # upstream                    | üstkaynak                   #
 # worktree/working tree       | çalışma ağacı               #
@@ -94,8 +96,8 @@
 msgstr ""
 "Project-Id-Version: Git Turkish Localization Project\n"
 "Report-Msgid-Bugs-To: Git Mailing List <git@vger.kernel.org>\n"
-"POT-Creation-Date: 2023-11-09 11:15+0300\n"
-"PO-Revision-Date: 2023-11 13:00+0300\n"
+"POT-Creation-Date: 2024-02-16 22:04+0300\n"
+"PO-Revision-Date: 2024-02-16 22:00+0300\n"
 "Last-Translator: Emir SARI <emir_sari@icloud.com>\n"
 "Language-Team: Turkish (https://github.com/bitigchi/git-po/)\n"
 "Language: tr\n"
@@ -1500,6 +1502,10 @@
 msgstr "Beklenmedik seçenek --output"
 
 #, c-format
+msgid "extra command line parameter '%s'"
+msgstr "fazladan komut satırı parametresi '%s'"
+
+#, c-format
 msgid "Unknown archive format '%s'"
 msgstr "Bilinmeyen arşiv biçimi '%s'"
 
@@ -1545,6 +1551,14 @@
 msgstr "hatalı --attr-source veya GIT_ATTR_SOURCE"
 
 #, c-format
+msgid "unable to stat '%s'"
+msgstr "'%s' dosyasının bilgileri alınamıyor"
+
+#, c-format
+msgid "unable to read %s"
+msgstr "%s okunamıyor"
+
+#, c-format
 msgid "Badly quoted content in file '%s': %s"
 msgstr "'%s' dosyasında hatalı tırnağa alınmış içerik: %s"
 
@@ -2823,12 +2837,12 @@
 msgstr "'%s' için işleme nesnesi aranamadı"
 
 #, c-format
-msgid ""
-"the branch '%s' is not fully merged.\n"
-"If you are sure you want to delete it, run 'git branch -D %s'"
-msgstr ""
-"'%s' dalı tümüyle birleştirilmemiş.\n"
-"Eğer silmek istediğinizden eminseniz 'git branch -D %s' çalıştırın."
+msgid "the branch '%s' is not fully merged"
+msgstr "'%s' dalı tümüyle birleştirilmedi"
+
+#, c-format
+msgid "If you are sure you want to delete it, run 'git branch -D %s'"
+msgstr "Onu silmek istediğinizden eminseniz 'git branch -D %s' çalıştırın."
 
 msgid "update of config-file failed"
 msgstr "config-file güncellenemedi"
@@ -3863,8 +3877,8 @@
 msgid "new-branch"
 msgstr "yeni dal"
 
-msgid "new unparented branch"
-msgstr "yeni üst ögesi olmayan dal"
+msgid "new unborn branch"
+msgstr "yeni henüz doğmamış dal"
 
 msgid "update ignored files (default)"
 msgstr "yok sayılan dosyaları güncelle (öntanımlı)"
@@ -4115,9 +4129,6 @@
 "clean.requireForce öntanımlı olarak 'true' ve ne -i ne -n ne de -f verilmiş; "
 "temizleme reddediliyor"
 
-msgid "-x and -X cannot be used together"
-msgstr "-x ve -X birlikte kullanılamaz"
-
 msgid "git clone [<options>] [--] <repo> [<dir>]"
 msgstr "git clone [<seçenekler>] [--] <depo> [<dizin>]"
 
@@ -4205,6 +4216,9 @@
 msgid "separate git dir from working tree"
 msgstr "git dizinini çalışma ağacından ayır"
 
+msgid "specify the reference format to use"
+msgstr "kullanılacak başvuru biçimini belirt"
+
 msgid "key=value"
 msgstr "anahtar=değer"
 
@@ -4322,11 +4336,9 @@
 msgid "You must specify a repository to clone."
 msgstr "Klonlamak için bir depo belirtmelisiniz."
 
-msgid ""
-"--bundle-uri is incompatible with --depth, --shallow-since, and --shallow-"
-"exclude"
-msgstr ""
-"--bundle-uri; --depth, --shallow-since ve --shallow-exclude ile uyumsuz"
+#, c-format
+msgid "unknown ref storage format '%s'"
+msgstr "bilinmeyen başvuru depolama biçimi '%s'"
 
 #, c-format
 msgid "repository '%s' does not exist"
@@ -4454,11 +4466,11 @@
 "--stdin-commits]\n"
 "                       [--changed-paths] [--[no-]max-new-filters <n>] [--"
 "[no-]progress]\n"
-"                       <split options>"
+"                       <split-options>"
 msgstr ""
 "git commit-graph write [--object-dir <dizin>] [--append]\n"
-"                       [--split[=<<strateji>]] [--reachable | --stdin-packs "
-"| --stdin-commits]\n"
+"                       [--split[=<strateji>]] [--reachable | --stdin-packs | "
+"--stdin-commits]\n"
 "                       [--changed-paths] [--[no-]max-new-filters <n>] [--"
 "[no-]progress]\n"
 "                       <bölme-seçenekleri>"
@@ -6778,6 +6790,10 @@
 msgstr "ağaç okunamıyor (%s)"
 
 #, c-format
+msgid "unable to read tree %s"
+msgstr "%s ağacı okunamıyor"
+
+#, c-format
 msgid "unable to grep from object of type %s"
 msgstr "%s türündeki bir nesneden grep yapılamıyor"
 
@@ -7190,10 +7206,6 @@
 msgstr "%s İLE SHA1 ÇARPIŞMASI BULUNDU!"
 
 #, c-format
-msgid "unable to read %s"
-msgstr "%s okunamıyor"
-
-#, c-format
 msgid "cannot read existing object info %s"
 msgstr "var olan nesne bilgisi %s okunamıyor"
 
@@ -7333,13 +7345,15 @@
 msgid ""
 "git init [-q | --quiet] [--bare] [--template=<template-directory>]\n"
 "         [--separate-git-dir <git-dir>] [--object-format=<format>]\n"
+"         [--ref-format=<format>]\n"
 "         [-b <branch-name> | --initial-branch=<branch-name>]\n"
 "         [--shared[=<permissions>]] [<directory>]"
 msgstr ""
 "git init [-q | --quiet] [--bare] [--template=<şablon-dizini>]\n"
 "         [--separate-git-dir <git-dizini>] [--object-format=<biçim>]\n"
+"         [--ref-format=<biçim>]\n"
 "         [-b <dal-adı> | --initial-branch=<dal-adı>]\n"
-"         [--shared[=<izinler>]] [<dizin>]"
+"         [--shared[=<izin>]] [<dizin>]"
 
 msgid "permissions"
 msgstr "izinler"
@@ -8039,6 +8053,13 @@
 "git merge-file [<seçenekler>] [-L <ad1> [-L <orij> [-L <ad2>]]] <dosya1> "
 "<orij-dosya> <dosya2>"
 
+msgid ""
+"option diff-algorithm accepts \"myers\", \"minimal\", \"patience\" and "
+"\"histogram\""
+msgstr ""
+"diff-algorithm seçeneği şunları kabul eder: \"myers\", \"minimal\", "
+"\"patience\" ve \"histogram\""
+
 msgid "send results to standard output"
 msgstr "sonuçları standart çıktıya gönder"
 
@@ -8060,6 +8081,12 @@
 msgid "for conflicts, use a union version"
 msgstr "çakışmalarda birlik olmuş bir sürüm kullan"
 
+msgid "<algorithm>"
+msgstr "<algoritma>"
+
+msgid "choose a diff algorithm"
+msgstr "bir diff algoritması seç"
+
 msgid "for conflicts, use this marker size"
 msgstr "çakışmalarda bu imleyici boyutunu kullan"
 
@@ -8150,9 +8177,6 @@
 msgid "unknown strategy option: -X%s"
 msgstr "bilinmeyen strateji seçeneği: -X%s"
 
-msgid "--merge-base is incompatible with --stdin"
-msgstr "--merge-base, --stdin ile uyumsuz"
-
 #, c-format
 msgid "malformed input line: '%s'."
 msgstr "hatalı oluşturulmuş girdi satırı: '%s'."
@@ -9078,6 +9102,10 @@
 msgstr "delta sayımında tutarsızlık"
 
 #, c-format
+msgid "invalid pack.allowPackReuse value: '%s'"
+msgstr "geçersiz pack.allowPackReuse değeri: '%s'"
+
+#, c-format
 msgid ""
 "value of uploadpack.blobpackfileuri must be of the form '<object-hash> <pack-"
 "hash> <uri>' (got '%s')"
@@ -9332,10 +9360,10 @@
 #, c-format
 msgid ""
 "Total %<PRIu32> (delta %<PRIu32>), reused %<PRIu32> (delta %<PRIu32>), pack-"
-"reused %<PRIu32>"
+"reused %<PRIu32> (from %<PRIuMAX>)"
 msgstr ""
 "Toplam %<PRIu32> (delta %<PRIu32>), yeniden kullanılan %<PRIu32> (delta "
-"%<PRIu32>), yeniden kullanılan paket %<PRIu32>"
+"%<PRIu32>), yeniden kullanılan paket %<PRIu32> (%<PRIuMAX> konumundan)"
 
 msgid ""
 "'git pack-redundant' is nominated for removal.\n"
@@ -10299,13 +10327,6 @@
 msgstr "'C' anahtarı sayısal bir değer bekliyor"
 
 msgid ""
-"apply options are incompatible with rebase.autoSquash.  Consider adding --no-"
-"autosquash"
-msgstr ""
-"seçenekleri uygula, rebase.autoSquash ile uyumlu değil. --no-autosquash "
-"eklemeyi düşünün"
-
-msgid ""
 "apply options are incompatible with rebase.rebaseMerges.  Consider adding --"
 "no-rebase-merges"
 msgstr ""
@@ -10717,10 +10738,10 @@
 "Note: Some branches outside the refs/remotes/ hierarchy were not removed;\n"
 "to delete them, use:"
 msgstr[0] ""
-"Not: refs/remotes hiyerarşisi dışındaki bir dal kaldırılmadı;\n"
+"Not: refs/remotes/ hiyerarşisi dışındaki bir dal kaldırılmadı;\n"
 "onu silmek için şunu kullanın:"
 msgstr[1] ""
-"Not: refs/remotes hiyerarşisi dışındaki bazı dallar kaldırılmadı;\n"
+"Not: refs/remotes/ hiyerarşisi dışındaki bazı dallar kaldırılmadı;\n"
 "onları silmek için şunu kullanın:"
 
 #, c-format
@@ -11298,6 +11319,76 @@
 msgid "only one pattern can be given with -l"
 msgstr "-l ile yalnızca bir dizgi verilebilir"
 
+msgid "need some commits to replay"
+msgstr "yeniden oynatmak için birkaç işleme gerekli"
+
+msgid "--onto and --advance are incompatible"
+msgstr "--onto ve --advance birbiriyle uyumsuz"
+
+msgid "all positive revisions given must be references"
+msgstr "verilen tüm pozitif revizyonlar, başvuru olmalı"
+
+msgid "argument to --advance must be a reference"
+msgstr "--advance'a olan argüman bir başvuru olmalı"
+
+msgid ""
+"cannot advance target with multiple sources because ordering would be ill-"
+"defined"
+msgstr ""
+"birden çok kaynaklı hedef ilerletilemiyor; çünkü sıralama hatalı tanımlanmış "
+"olurdu"
+
+msgid ""
+"cannot implicitly determine whether this is an --advance or --onto operation"
+msgstr ""
+"bunun --advance veya --onto işlemi olup olmadığı örtük olarak algılanamıyor"
+
+msgid ""
+"cannot advance target with multiple source branches because ordering would "
+"be ill-defined"
+msgstr ""
+"birden çok kaynak dallı hedef ilerletilemiyor; çünkü sıralama hatalı "
+"tanımlanmış olurdu"
+
+msgid "cannot implicitly determine correct base for --onto"
+msgstr "--onto için olan doğru temel örtük olarak algılanamıyor"
+
+msgid ""
+"(EXPERIMENTAL!) git replay ([--contained] --onto <newbase> | --advance "
+"<branch>) <revision-range>..."
+msgstr ""
+"(DENEYSEL!) git replay ([--contained] --onto <yeni-temel> | --advance <dal>) "
+"<revizyon-erimi>..."
+
+msgid "make replay advance given branch"
+msgstr "verilen dalı önceden yeniden oynat"
+
+msgid "replay onto given commit"
+msgstr "verilen işlemeye yeniden oynat"
+
+msgid "advance all branches contained in revision-range"
+msgstr "revizyon eriminde içerilen tüm dalları ilerlet"
+
+msgid "option --onto or --advance is mandatory"
+msgstr "--onto veya --advance seçeneğinin kullanımı zorunlu"
+
+#, c-format
+msgid ""
+"some rev walking options will be overridden as '%s' bit in 'struct rev_info' "
+"will be forced"
+msgstr ""
+"'struct rev_info' içindeki '%s' biti zorlanacağından kimi revizyon yürütme "
+"seçenekleri geçersiz kılınacak"
+
+msgid "error preparing revisions"
+msgstr "revizyonlar hazırlanırken hata"
+
+msgid "replaying down to root commit is not supported yet!"
+msgstr "kök işlemeye kadar yeniden oynatma henüz desteklenmiyor!"
+
+msgid "replaying merge commits is not supported yet!"
+msgstr "birleştirme işlemelerini yeniden oynatma henüz desteklenmiyor!"
+
 msgid ""
 "git rerere [clear | forget <pathspec>... | diff | status | remaining | gc]"
 msgstr ""
@@ -11506,15 +11597,6 @@
 msgid "unknown mode for --abbrev-ref: %s"
 msgstr "--abbrev-ref için bilinmeyen kip: %s"
 
-msgid "--exclude-hidden cannot be used together with --branches"
-msgstr "--exclude-hidden, --branches ile birlikte kullanılamıyor"
-
-msgid "--exclude-hidden cannot be used together with --tags"
-msgstr "--exclude-hidden, --tags ile birlikte kullanılamıyor"
-
-msgid "--exclude-hidden cannot be used together with --remotes"
-msgstr "--exclude-hidden, --remotes ile birlikte kullanılamıyor"
-
 msgid "this operation must be run in a work tree"
 msgstr "bu işlem bir çalışma ağacı içinde çalıştırılmalı"
 
@@ -11920,9 +12002,6 @@
 msgid "show refs from stdin that aren't in local repository"
 msgstr "stdin'den yerel bir depoda olmayan başvuruları göster"
 
-msgid "only one of '%s', '%s' or '%s' can be given"
-msgstr "yalnızca '%s', '%s' veya '%s' arasından biri verilebilir"
-
 msgid ""
 "git sparse-checkout (init | list | set | add | reapply | disable | check-"
 "rules) [<options>]"
@@ -13366,29 +13445,29 @@
 
 #, c-format
 msgid ""
-"If you meant to create a worktree containing a new orphan branch\n"
+"If you meant to create a worktree containing a new unborn branch\n"
 "(branch with no commits) for this repository, you can do so\n"
 "using the --orphan flag:\n"
 "\n"
 "    git worktree add --orphan -b %s %s\n"
 msgstr ""
-"Bu depo için yeni bir yetim dal içeren (işlemesiz dal) bir\n"
-"çalışma ağacı oluşturmak istediyseniz bunu --orphan bayrağı\n"
-"ile yapabilirsiniz:\n"
+"Bu depo için henüz doğmamış bir dal (işleme içermeyen dal) içeren\n"
+"bir çalışma ağacı oluşturmak istediyseniz bunu --orphan bayrağını\n"
+"kullanarak yapabilirsiniz:\n"
 "\n"
 "    git worktree add --orphan -b %s %s\n"
 
 #, c-format
 msgid ""
-"If you meant to create a worktree containing a new orphan branch\n"
+"If you meant to create a worktree containing a new unborn branch\n"
 "(branch with no commits) for this repository, you can do so\n"
 "using the --orphan flag:\n"
 "\n"
 "    git worktree add --orphan %s\n"
 msgstr ""
-"Bu depo için yeni bir yetim dal içeren (işlemesiz dal) bir\n"
-"çalışma ağacı oluşturmak istediyseniz bunu --orphan bayrağı\n"
-"ile yapabilirsiniz:\n"
+"Bu depo için henüz doğmamış bir dal (işleme içermeyen dal) içeren\n"
+"bir çalışma ağacı oluşturmak istediyseniz bunu --orphan bayrağını\n"
+"kullanarak yapabilirsiniz:\n"
 "\n"
 "    git worktree add --orphan %s\n"
 
@@ -13447,6 +13526,10 @@
 msgstr "ilklendiriliyor"
 
 #, c-format
+msgid "could not find created worktree '%s'"
+msgstr "oluşturulan '%s' çalışma ağacı bulunamadı"
+
+#, c-format
 msgid "Preparing worktree (new branch '%s')"
 msgstr "Çalışma ağacı hazırlanıyor (yeni dal '%s')"
 
@@ -13483,10 +13566,6 @@
 "Bir uzak konum olmasına rağmen hiçbir yerel/uzak başvuru yok, durduruluyor;\n"
 "geçersiz kılmak veya önce bir uzak konum getirmek için 'add -f' kullanın"
 
-#, c-format
-msgid "'%s' and '%s' cannot be used together"
-msgstr "'%s' ve '%s' birlikte kullanılamaz"
-
 msgid "checkout <branch> even if already checked out in other worktree"
 msgstr "diğer çalışma ağacında çıkış yapılmış olsa bile <dal> çıkışını yap"
 
@@ -13496,8 +13575,8 @@
 msgid "create or reset a branch"
 msgstr "yeni bir dal oluştur veya sıfırla"
 
-msgid "create unborn/orphaned branch"
-msgstr "doğmamış/yetim bırakılmış dal oluştur"
+msgid "create unborn branch"
+msgstr "henüz doğmamış dal oluştur"
 
 msgid "populate the new working tree"
 msgstr "yeni çalışma ağacını doldur"
@@ -13519,11 +13598,8 @@
 msgstr "'%s', '%s' ve '%s' seçenekleri birlikte kullanılamaz"
 
 #, c-format
-msgid "options '%s', and '%s' cannot be used together"
-msgstr "'%s' ve '%s' seçenekleri birlikte kullanılamaz"
-
-msgid "<commit-ish>"
-msgstr "<işlememsi>"
+msgid "option '%s' and commit-ish cannot be used together"
+msgstr "'%s' seçeneği ve işlememsiler birlikte kullanılamaz"
 
 msgid "added with --lock"
 msgstr "--lock ile eklendi"
@@ -14135,6 +14211,10 @@
 msgid "Create, list, delete refs to replace objects"
 msgstr "Nesne değiştirmek için başvurular oluştur, sil, listele"
 
+msgid "EXPERIMENTAL: Replay commits on a new base, works with bare repos too"
+msgstr ""
+"DENEYSEL: İşlemeleri yeni temelde yeniden oynat, çıplak depolarla da çalışır"
+
 msgid "Generates a summary of pending changes"
 msgstr "Bekleyen değişikliklerin bir özetini çıkart"
 
@@ -14373,6 +14453,32 @@
 msgid "commit-graph file is too small"
 msgstr "commit-graph dosyası pek küçük"
 
+msgid "commit-graph oid fanout chunk is wrong size"
+msgstr "commit-graph OID çıkış sayısı iri parçası boyutu yanlış"
+
+msgid "commit-graph fanout values out of order"
+msgstr "commit-graph çıkış sayısı değerleri sırasız: fanout[%d] = %u != %u"
+
+msgid "commit-graph OID lookup chunk is the wrong size"
+msgstr "commit-graph OID arama iri parçası boyutu yanlış"
+
+msgid "commit-graph commit data chunk is wrong size"
+msgstr "commit-graph işleme verisi iri parçası boyutu yanlış"
+
+msgid "commit-graph generations chunk is wrong size"
+msgstr "commit-graph kuşaklar iri parçası boyutu yanlış"
+
+msgid "commit-graph changed-path index chunk is too small"
+msgstr "commit-graph changed-path indeksi iri parçası boyutu pek küçük"
+
+#, c-format
+msgid ""
+"ignoring too-small changed-path chunk (%<PRIuMAX> < %<PRIuMAX>) in commit-"
+"graph file"
+msgstr ""
+"commit-graph dosyasındaki pek küçük changed-path iri parçası (%<PRIuMAX> < "
+"%<PRIuMAX>) yok sayılıyor"
+
 #, c-format
 msgid "commit-graph signature %X does not match signature %X"
 msgstr "commit-graph imzası %X, %X ile eşleşmiyor"
@@ -14389,6 +14495,17 @@
 msgid "commit-graph file is too small to hold %u chunks"
 msgstr "commit-graph dosyası %u iri parça tutmak için pek küçük"
 
+msgid "commit-graph required OID fanout chunk missing or corrupted"
+msgstr ""
+"commit-graph'ten gerekli OID çıkış sayısı iri parçası eksik veya hasarlı"
+
+msgid "commit-graph required OID lookup chunk missing or corrupted"
+msgstr "commit-graph'ten gerekli OID arama iri parçası eksik veya hasarlı"
+
+msgid "commit-graph required commit data chunk missing or corrupted"
+msgstr ""
+"commit-graph'ten gerekli OID çıkış sayısı iri parçası eksik veya hasarlı"
+
 msgid "commit-graph has no base graphs chunk"
 msgstr "commit-graph temel grafiği iri parçasına iye değil"
 
@@ -14402,6 +14519,9 @@
 msgid "commit count in base graph too high: %<PRIuMAX>"
 msgstr "temel grafikteki işleme sayısı pek yüksek: %<PRIuMAX>"
 
+msgid "commit-graph chain file too small"
+msgstr "commit-graph zincir dosyası pek küçük"
+
 #, c-format
 msgid "invalid commit-graph chain: line '%s' not a hash"
 msgstr "geçersiz commit-graph zinciri: '%s'. satır bir sağlama değil"
@@ -14422,6 +14542,9 @@
 msgid "commit-graph overflow generation data is too small"
 msgstr "commit-graph, taşım üretim verisi pek küçük"
 
+msgid "commit-graph extra-edges pointer out of bounds"
+msgstr "commit-graph extra-edges işaretçisi sınırlar dışında"
+
 msgid "Loading known commits in commit graph"
 msgstr "İşleme grafiğindeki bilinen işlemeler yükleniyor"
 
@@ -15563,6 +15686,10 @@
 msgstr "'diff.submodule' yapılandırma değişkeni için bilinmeyen değer: '%s'"
 
 #, c-format
+msgid "unknown value for config '%s': %s"
+msgstr "'%s' yapılandırması için bilinmeyen değer: %s"
+
+#, c-format
 msgid ""
 "Found errors in 'diff.dirstat' config variable:\n"
 "%s"
@@ -15642,13 +15769,6 @@
 msgid "invalid mode '%s' in --color-moved-ws"
 msgstr "--color-moved-ws içinde geçersiz kip '%s'"
 
-msgid ""
-"option diff-algorithm accepts \"myers\", \"minimal\", \"patience\" and "
-"\"histogram\""
-msgstr ""
-"diff-algorithm seçeneği şunları kabul eder: \"myers\", \"minimal\", "
-"\"patience\" ve \"histogram\""
-
 #, c-format
 msgid "invalid argument to %s"
 msgstr "%s için geçersiz argüman"
@@ -15692,8 +15812,8 @@
 msgid "output only the last line of --stat"
 msgstr "--stat'ın yalnızca son satırını çıktı ver"
 
-msgid "<param1,param2>..."
-msgstr "<param1,param2>..."
+msgid "<param1>,<param2>..."
+msgstr "<param1>,<param2>..."
 
 msgid ""
 "output the distribution of relative amount of changes for each sub-directory"
@@ -15703,8 +15823,8 @@
 msgid "synonym for --dirstat=cumulative"
 msgstr "--dirstat=cumulative eşanlamlısı"
 
-msgid "synonym for --dirstat=files,param1,param2..."
-msgstr "--dirstat=files,param1,param2... eşanlamlısı"
+msgid "synonym for --dirstat=files,<param1>,<param2>..."
+msgstr "--dirstat=files,<param1>,<param2>... eşanlamlısı"
 
 msgid "warn if changes introduce conflict markers or whitespace errors"
 msgstr ""
@@ -15879,12 +15999,6 @@
 msgid "generate diff using the \"histogram diff\" algorithm"
 msgstr "diff'i \"histogram diff\" algoritmasını kullanarak oluştur"
 
-msgid "<algorithm>"
-msgstr "<algoritma>"
-
-msgid "choose a diff algorithm"
-msgstr "bir diff algoritması seç"
-
 msgid "<text>"
 msgstr "<metin>"
 
@@ -17367,7 +17481,13 @@
 msgstr "önbellek okunamadı"
 
 msgid "multi-pack-index OID fanout is of the wrong size"
-msgstr "multi-pack-index OID ikiye bölümünün boyutu hatalı"
+msgstr "multi-pack-index OID çıkış sayısı boyutu yanlış"
+
+#, c-format
+msgid ""
+"oid fanout out of order: fanout[%d] = %<PRIx32> > %<PRIx32> = fanout[%d]"
+msgstr ""
+"oid çıkış sayısı sırasız: fanout[%d] = %<PRIx32> > %<PRIx32> = fanout[%d]"
 
 msgid "multi-pack-index OID lookup chunk is the wrong size"
 msgstr "multi-pack-index OID arama iri parçası yanlış boyutlu"
@@ -17415,6 +17535,13 @@
 msgid "bad pack-int-id: %u (%u total packs)"
 msgstr "hatalı pack-int-id: %u (%u toplam paket)"
 
+msgid "MIDX does not contain the BTMP chunk"
+msgstr "MIDX, BTMP iri parçasını içermiyor"
+
+#, c-format
+msgid "could not load bitmapped pack %<PRIu32>"
+msgstr "biteşlemli %<PRIu32> paketi yüklenemedi"
+
 msgid "multi-pack-index stores a 64-bit offset, but off_t is too small"
 msgstr "multi-pack-index bir 64 bit ofset depoluyor; ancak off_t pek küçük"
 
@@ -17498,11 +17625,6 @@
 msgid "Looking for referenced packfiles"
 msgstr "Başvurulmuş paket dosyaları aranıyor"
 
-#, c-format
-msgid ""
-"oid fanout out of order: fanout[%d] = %<PRIx32> > %<PRIx32> = fanout[%d]"
-msgstr "oid fanout sırasız: fanout[%d] = %<PRIx32> > %<PRIx32> = fanout[%d]"
-
 msgid "the midx contains no oid"
 msgstr "midx bir oid içermiyor"
 
@@ -18022,9 +18144,12 @@
 msgid "could not open pack %s"
 msgstr "%s paketi açılamadı"
 
+msgid "could not determine MIDX preferred pack"
+msgstr "MIDX yeğlenen paketi algılanamadı"
+
 #, c-format
 msgid "preferred pack (%s) is invalid"
-msgstr "tercih edilen (%s) paket geçersiz"
+msgstr "yeğlenen paket (%s) geçersiz"
 
 msgid "corrupt bitmap lookup table: triplet position out of index"
 msgstr "hasarlı biteşlem arama tablosu: üçlü konum indeks dışında"
@@ -18042,6 +18167,10 @@
 "hasarlı ewah biteşlemi: \"%s\" işlemesinin biteşleminde kısaltılmış üstbilgi"
 
 #, c-format
+msgid "unable to load pack: '%s', disabling pack-reuse"
+msgstr "paket yüklenemiyor: '%s', pack-reuse devre dışı bırakılıyor"
+
+#, c-format
 msgid "object '%s' not found in type bitmaps"
 msgstr "'%s' nesnesi, tür biteşlemlerinde bulunamadı"
 
@@ -18132,6 +18261,9 @@
 msgid "multi-pack-index reverse-index chunk is the wrong size"
 msgstr "multi-pack-index reverse-index iri parçası yanlış boyutlu"
 
+msgid "could not determine preferred pack"
+msgstr "yeğlenen paket algılanamadı"
+
 msgid "cannot both write and verify reverse index"
 msgstr "ters indeks dosyası hem yazılıp hem doğrulanamıyor"
 
@@ -18195,10 +18327,6 @@
 msgstr "%s negatif olmayan bir tamsayı bekliyor, isteğe bağlı k/m/g eki ile"
 
 #, c-format
-msgid "%s is incompatible with %s"
-msgstr "%s, %s ile uyumsuz"
-
-#, c-format
 msgid "ambiguous option: %s (could be --%s%s or --%s%s)"
 msgstr "belirsiz seçenek: %s (--%s%s veya --%s%s olabilir)"
 
@@ -18512,10 +18640,6 @@
 msgstr "'%s' indekse eklenemiyor"
 
 #, c-format
-msgid "unable to stat '%s'"
-msgstr "'%s' dosyasının bilgileri alınamıyor"
-
-#, c-format
 msgid "'%s' appears as both a file and as a directory"
 msgstr "'%s' hem bir dosya hem de bir dizin olarak görünüyor"
 
@@ -19087,10 +19211,6 @@
 msgstr "'%s' ve '%s' aynı anda işlenemiyor"
 
 #, c-format
-msgid "could not remove reference %s"
-msgstr "%s başvurusu kaldırılamadı"
-
-#, c-format
 msgid "could not delete reference %s: %s"
 msgstr "%s başvurusu silinemedi: %s"
 
@@ -20446,6 +20566,9 @@
 msgid "Autostash exists; creating a new stash entry."
 msgstr "Kendiliğinden zulalama mevcut; yeni bir zula girdisi oluşturuluyor."
 
+msgid "autostash reference is a symref"
+msgstr "kendiliğinden zulalama başvurusu bir sembol başvurusu"
+
 msgid "could not detach HEAD"
 msgstr "HEAD ayrılamadı"
 
@@ -20757,6 +20880,10 @@
 msgstr "geçersiz başlangıç dalı adı: '%s'"
 
 #, c-format
+msgid "re-init: ignored --initial-branch=%s"
+msgstr "re-init: --initial-branch=%s yok sayıldı"
+
+#, c-format
 msgid "unable to handle file type %d"
 msgstr "%d dosya türü ele alınamıyor"
 
@@ -20767,15 +20894,16 @@
 msgid "attempt to reinitialize repository with different hash"
 msgstr "depoyu başka bir sağlama ile yeniden ilklendirme deneniyor"
 
+msgid ""
+"attempt to reinitialize repository with different reference storage format"
+msgstr ""
+"depo başka bir başvuru depolama biçimiyle yeniden ilklendirilmeye çalışılıyor"
+
 #, c-format
 msgid "%s already exists"
 msgstr "%s halihazırda var"
 
 #, c-format
-msgid "re-init: ignored --initial-branch=%s"
-msgstr "re-init: --initial-branch=%s yok sayıldı"
-
-#, c-format
 msgid "Reinitialized existing shared Git repository in %s%s\n"
 msgstr "%s%s içindeki var olan paylaşılan Git deposu yeniden ilklendirildi\n"
 
@@ -21039,12 +21167,6 @@
 msgid "number of entries in the cache tree to invalidate (default 0)"
 msgstr "önbellek ağacındaki geçersizleştirilecek girdi sayısı (öntanımlı 0)"
 
-msgid "unhandled options"
-msgstr "beklenmeyen seçenekler"
-
-msgid "error preparing revisions"
-msgstr "revizyonlar hazırlanırken hata"
-
 #, c-format
 msgid "commit %s is not marked reachable"
 msgstr "%s işlemesi ulaşılabilir olarak imlenmedi"
@@ -21198,9 +21320,6 @@
 msgid "invalid remote service path"
 msgstr "geçersiz uzak konum servis yolu"
 
-msgid "operation not supported by protocol"
-msgstr "işlem protokol tarafından desteklenmiyor"
-
 #, c-format
 msgid "can't connect to subservice %s"
 msgstr "%s altservisine bağlanılamıyor"
@@ -21331,10 +21450,6 @@
 msgstr "protokol v2 desteği henüz yerine getirilmedi"
 
 #, c-format
-msgid "unknown value for config '%s': %s"
-msgstr "'%s' yapılandırması için bilinmeyen değer: %s"
-
-#, c-format
 msgid "transport '%s' not allowed"
 msgstr "'%s' taşıyıcısına izin verilmiyor"
 
@@ -21387,6 +21502,9 @@
 msgid "could not retrieve server-advertised bundle-uri list"
 msgstr "sunucu tarafından tanıtılan bundle-uri listesi alınamadı"
 
+msgid "operation not supported by protocol"
+msgstr "işlem protokol tarafından desteklenmiyor"
+
 msgid "too-short tree object"
 msgstr "ağaç nesnesi çok kısa"
 
@@ -22210,6 +22328,10 @@
 msgid "cannot %s: Your index contains uncommitted changes."
 msgstr "%s yapılamıyor: İndeksiniz işlenmemiş değişiklikler içeriyor."
 
+#, c-format
+msgid "unknown style '%s' given for '%s'"
+msgstr "'%s' bilinmeyen biçemi şunun için verildi: '%s'"
+
 msgid ""
 "Error: Your local changes to the following files would be overwritten by "
 "merge"
diff --git a/po/uk.po b/po/uk.po
index 0868905..0507e38 100644
--- a/po/uk.po
+++ b/po/uk.po
@@ -9,7 +9,7 @@
 "Project-Id-Version: Git v2.43\n"
 "Report-Msgid-Bugs-To: Git Mailing List <git@vger.kernel.org>\n"
 "POT-Creation-Date: 2023-11-09 14:26-0800\n"
-"PO-Revision-Date: 2023-11-09 14:34-0800\n"
+"PO-Revision-Date: 2024-02-11 09:26-0800\n"
 "Last-Translator: Arkadii Yakovets <ark@cho.red>\n"
 "Language-Team: Ukrainian <https://github.com/arkid15r/git-uk-l10n/>\n"
 "Language: uk\n"
@@ -18,7 +18,7 @@
 "Content-Transfer-Encoding: 8bit\n"
 "Plural-Forms: nplurals=3; plural=(n%10==1 && n%100!=11 ? 0 : n%10>=2 && "
 "n%10<=4 && (n%100<12 || n%100>14) ? 1 : 2);\n"
-"X-Generator: Poedit 3.4.1\n"
+"X-Generator: Poedit 3.4.2\n"
 
 #, c-format
 msgid "Huh (%s)?"
@@ -1444,6 +1444,10 @@
 msgstr "Неочікувана опція --output"
 
 #, c-format
+msgid "extra command line parameter '%s'"
+msgstr "зайвий параметр командного рядка: \"%s\""
+
+#, c-format
 msgid "Unknown archive format '%s'"
 msgstr "Невідомий формат архіву \"%s\""
 
@@ -1489,6 +1493,14 @@
 msgstr "невірний --attr-source або GIT_ATTR_SOURCE"
 
 #, c-format
+msgid "unable to stat '%s'"
+msgstr "не вдалося виконати stat для \"%s\""
+
+#, c-format
+msgid "unable to read %s"
+msgstr "не вдалося прочитати %s"
+
+#, c-format
 msgid "Badly quoted content in file '%s': %s"
 msgstr "Невірно процитований вміст у файлі \"%s\": %s"
 
@@ -1666,10 +1678,12 @@
 msgid "not tracking: ambiguous information for ref '%s'"
 msgstr "не відстежується: неоднозначна інформація для посилання \"%s\""
 
+#. #-#-#-#-#  branch.c.po  #-#-#-#-#
 #. TRANSLATORS: This is a line listing a remote with duplicate
 #. refspecs in the advice message below. For RTL languages you'll
 #. probably want to swap the "%s" and leading "  " space around.
 #.
+#. #-#-#-#-#  object-name.c.po  #-#-#-#-#
 #. TRANSLATORS: This is line item of ambiguous object output
 #. from describe_ambiguous_object() above. For RTL languages
 #. you'll probably want to swap the "%s" and leading " " space
@@ -2325,7 +2339,7 @@
 "git bisect start [--term-(new|bad)=<term> --term-(old|good)=<term>]    [--no-"
 "checkout] [--first-parent] [<bad> [<good>...]] [--]    [<pathspec>...]"
 msgstr ""
-"git bisect start [--term-{new,bad}=<термін> --term-{old,good}=<термін>]    "
+"git bisect start [--term-(new,bad)=<термін> --term-(old,good)=<термін>]    "
 "[--no-checkout] [--first-parent] [<поганий> [<добрий>...]] [--]    "
 "[<визначник шляху>...]"
 
@@ -2785,11 +2799,12 @@
 msgstr "не вдалося знайти об’єкт коміту для \"%s\""
 
 #, c-format
-msgid ""
-"the branch '%s' is not fully merged.\n"
-"If you are sure you want to delete it, run 'git branch -D %s'"
+msgid "the branch '%s' is not fully merged"
+msgstr "гілка \"%s\" злита не повністю"
+
+#, c-format
+msgid "If you are sure you want to delete it, run 'git branch -D %s'"
 msgstr ""
-"гілка \"%s\" злита не повністю.\n"
 "Якщо ви впевнені, що хочете її видалити, виконайте \"git branch -D %s\""
 
 msgid "update of config-file failed"
@@ -2856,11 +2871,11 @@
 
 #, c-format
 msgid "no commit on branch '%s' yet"
-msgstr "поки що немає комітів в гілці \"%s\""
+msgstr "поки що немає комітів у гілці \"%s\""
 
 #, c-format
 msgid "no branch named '%s'"
-msgstr "немає гілки з ім’ям \"%s\""
+msgstr "немає гілки з назвою \"%s\""
 
 msgid "branch rename failed"
 msgstr "не вдалося перейменувати гілку"
@@ -3078,7 +3093,7 @@
 "'--set-upstream-to' instead"
 msgstr ""
 "опція \"--set-upstream\" більше не підтримується. Будь ласка, використовуйте "
-"\"--track\" або \"--set-upstream-to\""
+"\"--track\" або \"--set-upstream-to\" замість неї"
 
 msgid "git version:\n"
 msgstr "версія git:\n"
@@ -3848,8 +3863,8 @@
 msgid "new-branch"
 msgstr "нова-гілка"
 
-msgid "new unparented branch"
-msgstr "нова гілка без джерела"
+msgid "new unborn branch"
+msgstr "нова ненароджена гілка"
 
 msgid "update ignored files (default)"
 msgstr "оновити ігноровані файли (за замовчуванням)"
@@ -4100,9 +4115,6 @@
 "clean.requireForce встановлено у true за замовчуванням і не задано ні -i, ні "
 "-n, ні -f; відмовлено в прибиранні"
 
-msgid "-x and -X cannot be used together"
-msgstr "-x та -X не можна використовувати разом"
-
 msgid "git clone [<options>] [--] <repo> [<dir>]"
 msgstr "git clone [<опції>] [--] <сховище> [<директорія>]"
 
@@ -4193,6 +4205,9 @@
 msgid "separate git dir from working tree"
 msgstr "відокремити git-директорію від робочого дерева"
 
+msgid "specify the reference format to use"
+msgstr "вкажіть формат посилання, який потрібно використовувати"
+
 msgid "key=value"
 msgstr "ключ=значення"
 
@@ -4311,11 +4326,9 @@
 msgid "You must specify a repository to clone."
 msgstr "Треба вказати сховище для клонування."
 
-msgid ""
-"--bundle-uri is incompatible with --depth, --shallow-since, and --shallow-"
-"exclude"
-msgstr ""
-"--bundle-uri несумісний з --depth, --shallow-since та --shallow-exclude"
+#, c-format
+msgid "unknown ref storage format '%s'"
+msgstr "невідомий формат зберігання посилань \"%s\""
 
 #, c-format
 msgid "repository '%s' does not exist"
@@ -4450,7 +4463,7 @@
 "--stdin-commits]\n"
 "                       [--changed-paths] [--[no-]max-new-filters <n>] [--"
 "[no-]progress]\n"
-"                       <split options>"
+"                       <split-options>"
 msgstr ""
 "git commit-graph write [--object-dir <директорія>] [--append] [--object-dir "
 "<директорія>] [--append] [--object-dir <директорія>] [--append\n"
@@ -4458,7 +4471,7 @@
 "| --stdin-commits]\n"
 "                       [--changed-paths] [--[no-]max-new-filters <число>] [--"
 "[no-]progress]\n"
-"                       <опції розділення>"
+"                       <опції-розділення>"
 
 msgid "dir"
 msgstr "директорія"
@@ -6757,7 +6770,7 @@
 msgstr "планувальник для запуску обслуговування git"
 
 msgid "failed to set up maintenance schedule"
-msgstr "не вдалося встановити графік обслуговування"
+msgstr "не вдалося встановити розклад обслуговування"
 
 msgid "failed to add repo to global config"
 msgstr "не вдалося додати сховище до глобальної конфігурації"
@@ -6776,6 +6789,7 @@
 msgid "invalid number of threads specified (%d) for %s"
 msgstr "невірно вказана кількість потоків (%d) для %s"
 
+#. #-#-#-#-#  grep.c.po  #-#-#-#-#
 #. TRANSLATORS: %s is the configuration
 #. variable for tweaking threads, currently
 #. grep.threads
@@ -6789,6 +6803,10 @@
 msgstr "не вдалося прочитати дерево (%s)"
 
 #, c-format
+msgid "unable to read tree %s"
+msgstr "не вдалося прочитати дерево %s"
+
+#, c-format
 msgid "unable to grep from object of type %s"
 msgstr "не вдалося виконати grep для об’єкта типу %s"
 
@@ -7201,10 +7219,6 @@
 msgstr "ВИЯВЛЕНО SHA1 КОЛІЗІЮ З %s!"
 
 #, c-format
-msgid "unable to read %s"
-msgstr "не вдалося прочитати %s"
-
-#, c-format
 msgid "cannot read existing object info %s"
 msgstr "неможливо прочитати інформацію про існуючий об’єкт %s"
 
@@ -7348,11 +7362,13 @@
 msgid ""
 "git init [-q | --quiet] [--bare] [--template=<template-directory>]\n"
 "         [--separate-git-dir <git-dir>] [--object-format=<format>]\n"
+"         [--ref-format=<format>]\n"
 "         [-b <branch-name> | --initial-branch=<branch-name>]\n"
 "         [--shared[=<permissions>]] [<directory>]"
 msgstr ""
 "git init [-q | --quiet] [--bare] [--template=<шаблон-директорія>]\n"
 "         [--separate-git-dir <git-директорія>] [--object-format=<формат>]\n"
+"         [--ref-format=<формат>]\n"
 "         [-b <назва-гілки> | --initial-branch=<назва-гілки>]\n"
 "         [--shared[=<дозволи>]] [<директорія>]"
 
@@ -7400,8 +7416,8 @@
 "                       [--parse] [<file>...]"
 msgstr ""
 "git interpret-trailers [--in-place] [--trim-empty]\n"
-"                       [(--trailer (<ключ>|<аліасКлюча>)"
-"[(=|:)<значення>])...]\n"
+"                       [(--trailer <ключ>|"
+"<аліасКлюча>[(=|:)<значення>])...]\n"
 "                       [--parse] [<файл>...]"
 
 msgid "edit files in place"
@@ -7411,7 +7427,7 @@
 msgstr "обрізати порожні причепи"
 
 msgid "placement"
-msgstr "розташування"
+msgstr "розміщення"
 
 msgid "where to place the new trailer"
 msgstr "де розмістити новий причіп"
@@ -8065,11 +8081,18 @@
 "git merge-file [<опції>] [-L <назва1> [-L <оріг> [-L <назва2>]]] <файл1> "
 "<оріг-файл> <файл2>"
 
+msgid ""
+"option diff-algorithm accepts \"myers\", \"minimal\", \"patience\" and "
+"\"histogram\""
+msgstr ""
+"опція diff-algorithm приймає значення \"myers\", \"minimal\", \"patience\" "
+"та \"histogram\""
+
 msgid "send results to standard output"
 msgstr "надсилати результати до стандартного виводу"
 
 msgid "use object IDs instead of filenames"
-msgstr "використовувати ID обʼєктів замість назв файлів"
+msgstr "використовувати ідентифікатори обʼєктів замість назв файлів"
 
 msgid "use a diff3 based merge"
 msgstr "використовувати злиття на основі diff3"
@@ -8086,6 +8109,12 @@
 msgid "for conflicts, use a union version"
 msgstr "у разі конфліктів використовувати об’єднану версію"
 
+msgid "<algorithm>"
+msgstr "<алгоритм>"
+
+msgid "choose a diff algorithm"
+msgstr "вибрати алгоритм різниці"
+
 msgid "for conflicts, use this marker size"
 msgstr "у разі конфліктів використовувати цей розмір маркера"
 
@@ -8097,7 +8126,7 @@
 
 #, c-format
 msgid "object '%s' does not exist"
-msgstr "обʼєкт \"%s\" не існує"
+msgstr "об’єкт \"%s\" не існує"
 
 msgid "Could not write object file"
 msgstr "Не вдалося записати файл обʼєкта"
@@ -8177,9 +8206,6 @@
 msgid "unknown strategy option: -X%s"
 msgstr "невідомий варіант стратегії: -X%s"
 
-msgid "--merge-base is incompatible with --stdin"
-msgstr "--merge-base несумісна з --stdin"
-
 #, c-format
 msgid "malformed input line: '%s'."
 msgstr "невірно сформований рядок вводу: \"%s\"."
@@ -9113,6 +9139,10 @@
 msgstr "неспівпадіння з підрахунком дельти"
 
 #, c-format
+msgid "invalid pack.allowPackReuse value: '%s'"
+msgstr "неприпустиме значення pack.allowPackReuse: \"%s\""
+
+#, c-format
 msgid ""
 "value of uploadpack.blobpackfileuri must be of the form '<object-hash> <pack-"
 "hash> <uri>' (got '%s')"
@@ -9368,10 +9398,10 @@
 #, c-format
 msgid ""
 "Total %<PRIu32> (delta %<PRIu32>), reused %<PRIu32> (delta %<PRIu32>), pack-"
-"reused %<PRIu32>"
+"reused %<PRIu32> (from %<PRIuMAX>)"
 msgstr ""
 "Всього %<PRIu32> (дельта %<PRIu32>), повторно використано %<PRIu32> (дельта "
-"%<PRIu32>), повторно використано пакунків %<PRIu32>"
+"%<PRIu32>), повторно використано пакунків %<PRIu32> (з %<PRIuMAX>)"
 
 msgid ""
 "'git pack-redundant' is nominated for removal.\n"
@@ -10361,13 +10391,6 @@
 msgstr "перемикач \"C\" очікує числове значення"
 
 msgid ""
-"apply options are incompatible with rebase.autoSquash.  Consider adding --no-"
-"autosquash"
-msgstr ""
-"apply опції несумісні з rebase.autoSquash.  Розгляньте можливість додавання "
-"--no-autosquash"
-
-msgid ""
 "apply options are incompatible with rebase.rebaseMerges.  Consider adding --"
 "no-rebase-merges"
 msgstr ""
@@ -11156,7 +11179,7 @@
 msgstr "записати multi-pack-index результуючих пакунків"
 
 msgid "pack prefix to store a pack containing pruned objects"
-msgstr "префікс пакунка для зберігання пакунка з обрізаними обʼєктами"
+msgstr "префікс для зберігання пакунка з обрізаними обʼєктами"
 
 msgid "pack prefix to store a pack containing filtered out objects"
 msgstr "префікс для зберігання пакунка з відфільтрованими  обʼєктами"
@@ -11166,7 +11189,7 @@
 
 #, c-format
 msgid "option '%s' can only be used along with '%s'"
-msgstr "опцію \"%s\" можна використовувати тільки разом з \"%s\""
+msgstr "опція \"%s\" може бути використана тільки разом з \"%s\""
 
 msgid "Nothing new to pack."
 msgstr "Немає нічого нового для пакування."
@@ -11371,6 +11394,75 @@
 msgid "only one pattern can be given with -l"
 msgstr "тільки один шаблон може бути заданий з -l"
 
+msgid "need some commits to replay"
+msgstr "потрібні деякі комміти для відтворення"
+
+msgid "--onto and --advance are incompatible"
+msgstr "--onto та --advance несумісні"
+
+msgid "all positive revisions given must be references"
+msgstr "всі надані позитивні ревізії мають бути посиланнями"
+
+msgid "argument to --advance must be a reference"
+msgstr "аргумент до --advance має бути посиланням"
+
+msgid ""
+"cannot advance target with multiple sources because ordering would be ill-"
+"defined"
+msgstr ""
+"неможливо просунути посилання з декількома джерелами, тому що впорядкування "
+"буде нечітко визначеним"
+
+msgid ""
+"cannot implicitly determine whether this is an --advance or --onto operation"
+msgstr "неможливо неявно визначити, чи це операція --advance або --onto"
+
+msgid ""
+"cannot advance target with multiple source branches because ordering would "
+"be ill-defined"
+msgstr ""
+"неможливо просунути посилання з декількома джерельними гілками, тому що "
+"впорядкування буде нечітко визначеним"
+
+msgid "cannot implicitly determine correct base for --onto"
+msgstr "неможливо неявно визначити вірну базу для --onto"
+
+msgid ""
+"(EXPERIMENTAL!) git replay ([--contained] --onto <newbase> | --advance "
+"<branch>) <revision-range>..."
+msgstr ""
+"(ЕКСПЕРИМЕНТАЛЬНО!) git replay ([--contained] --onto <нова-база> | --advance "
+"<гілка>) <діапазон-ревізій>..."
+
+msgid "make replay advance given branch"
+msgstr "зробити відтворення з просуванням даної гілки"
+
+msgid "replay onto given commit"
+msgstr "відтворити на заданий коміт"
+
+msgid "advance all branches contained in revision-range"
+msgstr "просунути всі гілки, що містяться в діапазоні ревізій"
+
+msgid "option --onto or --advance is mandatory"
+msgstr "опція --onto або --advance є обовʼязковою"
+
+#, c-format
+msgid ""
+"some rev walking options will be overridden as '%s' bit in 'struct rev_info' "
+"will be forced"
+msgstr ""
+"деякі опції проходження по ревізіям будуть перевизначені, оскільки біт "
+"\"%s\" у \"struct rev_info\" буде примусово використано"
+
+msgid "error preparing revisions"
+msgstr "помилка при підготовці ревізій"
+
+msgid "replaying down to root commit is not supported yet!"
+msgstr "відтворення до кореневого коміту поки що не підтримується!"
+
+msgid "replaying merge commits is not supported yet!"
+msgstr "відтворення коммітів злиття поки що не підтримується!"
+
 msgid ""
 "git rerere [clear | forget <pathspec>... | diff | status | remaining | gc]"
 msgstr ""
@@ -11583,15 +11675,6 @@
 msgid "unknown mode for --abbrev-ref: %s"
 msgstr "невідомий режим для --abbrev-ref: %s"
 
-msgid "--exclude-hidden cannot be used together with --branches"
-msgstr "--exclude-hidden не можна використовувати разом з --branches"
-
-msgid "--exclude-hidden cannot be used together with --tags"
-msgstr "--exclude-hidden неможливо використовувати разом з --tags"
-
-msgid "--exclude-hidden cannot be used together with --remotes"
-msgstr "--exclude-hidden неможливо використовувати разом з --remotes"
-
 msgid "this operation must be run in a work tree"
 msgstr "цю операцію треба виконувати в робочому дереві"
 
@@ -12005,10 +12088,6 @@
 msgid "show refs from stdin that aren't in local repository"
 msgstr "показати посилання з stdin, яких немає в локальному сховищі"
 
-#, c-format
-msgid "only one of '%s', '%s' or '%s' can be given"
-msgstr "можна вказати тільки один з \"%s\", \"%s\" або \"%s\""
-
 msgid ""
 "git sparse-checkout (init | list | set | add | reapply | disable | check-"
 "rules) [<options>]"
@@ -12820,7 +12899,7 @@
 "branch] [--] [<шлях>...]"
 
 msgid "Failed to resolve HEAD as a valid ref."
-msgstr "Не вдалося розпізнати HEAD як дійсне посилання."
+msgstr "Не вдалося розвʼязати HEAD в дійсне посилання."
 
 msgid "git submodule absorbgitdirs [<options>] [<path>...]"
 msgstr "git submodule absorbgitdirs [<опції>] [<шлях>...]"
@@ -13325,7 +13404,7 @@
 
 #, c-format
 msgid "index-version: was %d, set to %d"
-msgstr "index-version: було %d, стало %d"
+msgstr "версія індексу: була %d, стала %d"
 
 msgid ""
 "core.splitIndex is set to false; remove or change it, if you really want to "
@@ -13482,13 +13561,13 @@
 
 #, c-format
 msgid ""
-"If you meant to create a worktree containing a new orphan branch\n"
+"If you meant to create a worktree containing a new unborn branch\n"
 "(branch with no commits) for this repository, you can do so\n"
 "using the --orphan flag:\n"
 "\n"
 "    git worktree add --orphan -b %s %s\n"
 msgstr ""
-"Якщо ви хочете створити робоче дерево, що містить нову сирітську гілку\n"
+"Якщо ви хочете створити робоче дерево, що містить нову ненароджену гілку\n"
 "(гілку без комітів) для цього сховища, ви можете зробити це\n"
 "за допомогою прапорця --orphan:\n"
 "\n"
@@ -13496,13 +13575,13 @@
 
 #, c-format
 msgid ""
-"If you meant to create a worktree containing a new orphan branch\n"
+"If you meant to create a worktree containing a new unborn branch\n"
 "(branch with no commits) for this repository, you can do so\n"
 "using the --orphan flag:\n"
 "\n"
 "    git worktree add --orphan %s\n"
 msgstr ""
-"Якщо ви хочете створити робоче дерево, що містить нову сирітську гілку\n"
+"Якщо ви хочете створити робоче дерево, що містить нову ненароджену гілку\n"
 "(гілку без комітів) для цього сховища, ви можете зробити це\n"
 "за допомогою прапорця --orphan:\n"
 "\n"
@@ -13566,6 +13645,10 @@
 msgstr "ініціалізація"
 
 #, c-format
+msgid "could not find created worktree '%s'"
+msgstr "не вдалося знайти створене робоче дерево \"%s\""
+
+#, c-format
 msgid "Preparing worktree (new branch '%s')"
 msgstr "Підготовка робочого дерева (нова гілка \"%s\")"
 
@@ -13601,12 +13684,8 @@
 msgstr ""
 "Не існує локальних або віддалених посилань, незважаючи на наявність "
 "принаймні одного віддаленого\n"
-"призначення, зупинка; скористайтесь \"add -f\" для перевизначення або "
-"спочатку виконайте отримання віддаленого посилання"
-
-#, c-format
-msgid "'%s' and '%s' cannot be used together"
-msgstr "\"%s\" і \"%s\" не можна використовувати разом"
+"призначення, зупинка; скористайтесь \"add -f\", щоб перевизначити, або "
+"спочатку виконайте отримання з віддаленного сховища"
 
 msgid "checkout <branch> even if already checked out in other worktree"
 msgstr ""
@@ -13618,8 +13697,8 @@
 msgid "create or reset a branch"
 msgstr "створити або скинути гілку"
 
-msgid "create unborn/orphaned branch"
-msgstr "створити ненароджену/сирітську гілку"
+msgid "create unborn branch"
+msgstr "створити ненароджену гілку"
 
 msgid "populate the new working tree"
 msgstr "заповнити нове робоче дерево"
@@ -13642,11 +13721,8 @@
 msgstr "опції \"%s\", \"%s\" та \"%s\" не можна використовувати разом"
 
 #, c-format
-msgid "options '%s', and '%s' cannot be used together"
-msgstr "опції \"%s\" і \"%s\" не можна використовувати разом"
-
-msgid "<commit-ish>"
-msgstr "<комітоподібне>"
+msgid "option '%s' and commit-ish cannot be used together"
+msgstr "опцію \"%s\" не можна використовувати разом з комітоподібними"
 
 msgid "added with --lock"
 msgstr "додано з --lock"
@@ -13926,7 +14002,7 @@
 
 #, c-format
 msgid "chunk id %<PRIx32> not %d-byte aligned"
-msgstr "шматок в id %<PRIx32> не %d-byte впорядкований"
+msgstr "шматок id %<PRIx32> не є %d-byte впорядкованим"
 
 #, c-format
 msgid "improper chunk offset(s) %<PRIx64> and %<PRIx64>"
@@ -13981,7 +14057,7 @@
 msgstr "Перенести архів обʼєктів та посилань"
 
 msgid "Provide contents or details of repository objects"
-msgstr "Показати вміст або інформацію про обʼєкти сховища"
+msgstr "Надавати вміст або деталі обʼєктів сховища"
 
 msgid "Display gitattributes information"
 msgstr "Відобразити інформацію про gitattributes"
@@ -14269,6 +14345,11 @@
 msgid "Create, list, delete refs to replace objects"
 msgstr "Створити, показати, видалити посилання для об’єктів заміни"
 
+msgid "EXPERIMENTAL: Replay commits on a new base, works with bare repos too"
+msgstr ""
+"ЕКСПЕРИМЕНТАЛЬНО: Відтворення коммітів на новій базі також працює з "
+"порожніми сховищами"
+
 msgid "Generates a summary of pending changes"
 msgstr "Створює підсумок змін для розгляду"
 
@@ -14391,7 +14472,7 @@
 msgstr "Показати інформацію про версію Git"
 
 msgid "Show logs with differences each commit introduces"
-msgstr "Показати журнал з різницею, яку вносить кожен з комітів"
+msgstr "Показати журнал з різницями, які вносить кожен коміт"
 
 msgid "Manage multiple working trees"
 msgstr "Керувати кількома робочими деревами"
@@ -14507,6 +14588,32 @@
 msgid "commit-graph file is too small"
 msgstr "файл коміт-графа занадто малий"
 
+msgid "commit-graph oid fanout chunk is wrong size"
+msgstr "шматок oid fanout коміт-графа має невірний розмір"
+
+msgid "commit-graph fanout values out of order"
+msgstr "значення fanout коміт-графа впорядковані невірно"
+
+msgid "commit-graph OID lookup chunk is the wrong size"
+msgstr "шматок OID lookup коміт-графа має невірний розмір"
+
+msgid "commit-graph commit data chunk is wrong size"
+msgstr "шматок commit data коміт-графа має невірний розмір"
+
+msgid "commit-graph generations chunk is wrong size"
+msgstr "шматок generations коміт-графа має невірний розмір"
+
+msgid "commit-graph changed-path index chunk is too small"
+msgstr "шматок changed-path index коміт-графа має невірний розмір"
+
+#, c-format
+msgid ""
+"ignoring too-small changed-path chunk (%<PRIuMAX> < %<PRIuMAX>) in commit-"
+"graph file"
+msgstr ""
+"ігнорування занадто малого шматка changed-path (%<PRIuMAX> < %<PRIuMAX>) "
+"файла коміт-графа"
+
 #, c-format
 msgid "commit-graph signature %X does not match signature %X"
 msgstr "підпис коміт-графа %X не збігається з підписом %X"
@@ -14523,11 +14630,20 @@
 msgid "commit-graph file is too small to hold %u chunks"
 msgstr "файл коміт-графа занадто малий, щоб вмістити %u шматків"
 
+msgid "commit-graph required OID fanout chunk missing or corrupted"
+msgstr "необхідний шматок OID fanout коміт-графа відсутній або пошкоджений"
+
+msgid "commit-graph required OID lookup chunk missing or corrupted"
+msgstr "необхідний шматок OID lookup коміт-графа відсутній або пошкоджений"
+
+msgid "commit-graph required commit data chunk missing or corrupted"
+msgstr "необхідний шматок commit data коміт-графа відсутній або пошкоджений"
+
 msgid "commit-graph has no base graphs chunk"
 msgstr "коміт-граф не має шматка базових графів"
 
 msgid "commit-graph base graphs chunk is too small"
-msgstr "занадто малий шматок базових графів коміт-графа"
+msgstr "шматок base graphs коміт-графа занадто малий"
 
 msgid "commit-graph chain does not match"
 msgstr "ланцюжок коміт-графа не співпадає"
@@ -14536,6 +14652,9 @@
 msgid "commit count in base graph too high: %<PRIuMAX>"
 msgstr "кількість комітів у базовому графі занадто велика: %<PRIuMAX>"
 
+msgid "commit-graph chain file too small"
+msgstr "файл ланцюжка коміт-графа занадто малий"
+
 #, c-format
 msgid "invalid commit-graph chain: line '%s' not a hash"
 msgstr "неприпустимий ланцюжок коміт-графа: рядок \"%s\" не є хешем"
@@ -14551,10 +14670,13 @@
 msgstr "не вдалося знайти коміт %s"
 
 msgid "commit-graph requires overflow generation data but has none"
-msgstr "коміт-граф потребує даних генерації переповнення, але їх немаєданих"
+msgstr "коміт-граф потребує даних генерації переповнення, але не має їх"
 
 msgid "commit-graph overflow generation data is too small"
-msgstr "занадто мало даних про переповнення коміт-граф генерації"
+msgstr "занадто мало даних генерації переповнення коміт-графа"
+
+msgid "commit-graph extra-edges pointer out of bounds"
+msgstr "extra-edges pointer коміт-графа виходить за межі"
 
 msgid "Loading known commits in commit graph"
 msgstr "Завантаження відомих комітів у коміт-графі"
@@ -14692,7 +14814,8 @@
 "commit-graph has both zero and non-zero generations (e.g., commits '%s' and "
 "'%s')"
 msgstr ""
-"коміт-граф має як нульові, так і ненульові генерації (коміти \"%s\" і \"%s\")"
+"коміт-граф має як нульові, так і ненульові генерації (наприклад, коміти "
+"\"%s\" і \"%s\")"
 
 msgid "Verifying commits in commit graph"
 msgstr "Перевірка комітів у коміт-графі"
@@ -15703,6 +15826,10 @@
 msgstr "Невідоме значення конфігураційної змінної \"diff.submodule\": \"%s\""
 
 #, c-format
+msgid "unknown value for config '%s': %s"
+msgstr "невідоме значення для конфігурації \"%s\": %s"
+
+#, c-format
 msgid ""
 "Found errors in 'diff.dirstat' config variable:\n"
 "%s"
@@ -15782,13 +15909,6 @@
 msgid "invalid mode '%s' in --color-moved-ws"
 msgstr "неприпустимий режим \"%s\" у --color-moved-ws"
 
-msgid ""
-"option diff-algorithm accepts \"myers\", \"minimal\", \"patience\" and "
-"\"histogram\""
-msgstr ""
-"опція diff-algorithm приймає значення \"myers\", \"minimal\", \"patience\" "
-"та \"histogram\""
-
 #, c-format
 msgid "invalid argument to %s"
 msgstr "неприпустимий аргумент до %s"
@@ -15832,8 +15952,8 @@
 msgid "output only the last line of --stat"
 msgstr "вивести лише останній рядок --stat"
 
-msgid "<param1,param2>..."
-msgstr "<параметр1,параметр2>..."
+msgid "<param1>,<param2>..."
+msgstr "<параметр1>,<параметр2>..."
 
 msgid ""
 "output the distribution of relative amount of changes for each sub-directory"
@@ -15842,8 +15962,8 @@
 msgid "synonym for --dirstat=cumulative"
 msgstr "синонім для --dirstat=cumulative"
 
-msgid "synonym for --dirstat=files,param1,param2..."
-msgstr "синонім для --dirstat=files,параметр1,параметр2..."
+msgid "synonym for --dirstat=files,<param1>,<param2>..."
+msgstr "синонім для --dirstat=files,<параметр1>,<параметр2>..."
 
 msgid "warn if changes introduce conflict markers or whitespace errors"
 msgstr ""
@@ -16019,12 +16139,6 @@
 msgid "generate diff using the \"histogram diff\" algorithm"
 msgstr "згенерувати різницю за алгоритмом \"histogram diff\""
 
-msgid "<algorithm>"
-msgstr "<алгоритм>"
-
-msgid "choose a diff algorithm"
-msgstr "вибрати алгоритм різниці"
-
 msgid "<text>"
 msgstr "<текст>"
 
@@ -17224,7 +17338,7 @@
 #. conflict in a submodule. The first argument is the submodule
 #. name, and the second argument is the abbreviated id of the
 #. commit that needs to be merged.  For example:
-#. - go to submodule (mysubmodule), and either merge commit abc1234"
+#.  - go to submodule (mysubmodule), and either merge commit abc1234"
 #.
 #, c-format
 msgid ""
@@ -17513,12 +17627,18 @@
 msgid "multi-pack-index OID fanout is of the wrong size"
 msgstr "multi-pack-index OID розсіювання має невірний розмір"
 
+#, c-format
+msgid ""
+"oid fanout out of order: fanout[%d] = %<PRIx32> > %<PRIx32> = fanout[%d]"
+msgstr ""
+"невірна послідовність oid fanout: fanout[%d] = %<PRIx32> > %<PRIx32> = "
+"fanout[%d]"
+
 msgid "multi-pack-index OID lookup chunk is the wrong size"
-msgstr "multi-pack-index шматок пошуку OID має невірний розмір"
+msgstr "multi-pack-index OID lookup шматок має невірний розмір"
 
 msgid "multi-pack-index object offset chunk is the wrong size"
-msgstr ""
-"multi-pack-index необхідній шматок зміщення обʼєкта має невірний розмір"
+msgstr "multi-pack-index object offset шматок має невірний розмір"
 
 #, c-format
 msgid "multi-pack-index file %s is too small"
@@ -17537,24 +17657,22 @@
 msgstr "версія хешу multi-pack-index %u не збігається з версією %u"
 
 msgid "multi-pack-index required pack-name chunk missing or corrupted"
-msgstr ""
-"multi-pack-index необхідний шматок імені пакунка відсутній або пошкоджений"
+msgstr "необхідний шматок pack-name multi-pack-index відсутній або пошкоджений"
 
 msgid "multi-pack-index required OID fanout chunk missing or corrupted"
 msgstr ""
-"multi-pack-index необхідний шматок розсіювання OID відсутній або пошкоджений"
+"необхідний шматок OID fanout multi-pack-index відсутній або пошкоджений"
 
 msgid "multi-pack-index required OID lookup chunk missing or corrupted"
 msgstr ""
-"multi-pack-index необхідний шматок пошуку OID відсутній або пошкоджений"
+"необхідний шматок OID lookup multi-pack-index відсутній або пошкоджений"
 
 msgid "multi-pack-index required object offsets chunk missing or corrupted"
 msgstr ""
-"multi-pack-index необхідний шматок зміщення обʼєктів відсутній або "
-"пошкоджений"
+"необхідний шматок object offsets multi-pack-index відсутній або пошкоджений"
 
 msgid "multi-pack-index pack-name chunk is too short"
-msgstr "multi-pack-index  pack-name шматок занадто малий"
+msgstr "шматок pack-name multi-pack-index занадто малий"
 
 #, c-format
 msgid "multi-pack-index pack names out of order: '%s' before '%s'"
@@ -17566,12 +17684,19 @@
 msgid "bad pack-int-id: %u (%u total packs)"
 msgstr "невірний pack-int-id: %u (%u всього пакунків)"
 
+msgid "MIDX does not contain the BTMP chunk"
+msgstr "MIDX не містить шматок BTMP"
+
+#, c-format
+msgid "could not load bitmapped pack %<PRIu32>"
+msgstr "не вдалося завантажити бітмаповий пакунок %<PRIu32>"
+
 msgid "multi-pack-index stores a 64-bit offset, but off_t is too small"
 msgstr ""
 "multi-pack-index зберігає 64-бітне зміщення, але значення off_t занадто мале"
 
 msgid "multi-pack-index large offset out of bounds"
-msgstr "multi-pack-index large зсув виходить за межі"
+msgstr "large offset multi-pack-index виходить за межі"
 
 #, c-format
 msgid "failed to add packfile '%s'"
@@ -17651,13 +17776,6 @@
 msgid "Looking for referenced packfiles"
 msgstr "Пошук файлів пакунків, на які є посилання"
 
-#, c-format
-msgid ""
-"oid fanout out of order: fanout[%d] = %<PRIx32> > %<PRIx32> = fanout[%d]"
-msgstr ""
-"невірна послідовність oid розсіювання: fanout[%d] = %<PRIx32> > %<PRIx32> = "
-"fanout[%d]"
-
 msgid "the midx contains no oid"
 msgstr "midx не містить oid"
 
@@ -17961,7 +18079,7 @@
 #. TRANSLATORS: This is a line of ambiguous commit
 #. object output. E.g.:
 #. *
-#. "deadbeef commit 2021-01-01 - Some Commit Message"
+#.    "deadbeef commit 2021-01-01 - Some Commit Message"
 #.
 #, c-format
 msgid "%s commit %s - %s"
@@ -17970,7 +18088,7 @@
 #. TRANSLATORS: This is a line of ambiguous
 #. tag object output. E.g.:
 #. *
-#. "deadbeef tag 2022-01-01 - Some Tag Message"
+#.    "deadbeef tag 2022-01-01 - Some Tag Message"
 #. *
 #. The second argument is the YYYY-MM-DD found
 #. in the tag.
@@ -17986,7 +18104,7 @@
 #. tag object output where we couldn't parse
 #. the tag itself. E.g.:
 #. *
-#. "deadbeef [bad tag, could not parse it]"
+#.    "deadbeef [bad tag, could not parse it]"
 #.
 #, c-format
 msgid "%s [bad tag, could not parse it]"
@@ -18182,6 +18300,9 @@
 msgid "could not open pack %s"
 msgstr "не вдалося відкрити пакунок %s"
 
+msgid "could not determine MIDX preferred pack"
+msgstr "не вдалося визначити бажаний пакунок MIDX"
+
 #, c-format
 msgid "preferred pack (%s) is invalid"
 msgstr "бажаний пакунок (%s) є неприпустимим"
@@ -18203,6 +18324,12 @@
 msgstr "пошкоджений ewah bitmap: урізаний заголовок для bitmap коміту \"%s\""
 
 #, c-format
+msgid "unable to load pack: '%s', disabling pack-reuse"
+msgstr ""
+"не вдалося завантажити пакунок: \"%s\", вимкнення повторного використання "
+"пакунків"
+
+#, c-format
 msgid "object '%s' not found in type bitmaps"
 msgstr "обʼєкт \"%s\" не знайдено в типах bitmap"
 
@@ -18296,6 +18423,9 @@
 msgid "multi-pack-index reverse-index chunk is the wrong size"
 msgstr "multi-pack-index reverse-index шматок має невірний розмір"
 
+msgid "could not determine preferred pack"
+msgstr "не вдалося визначити бажаний пакунок"
+
 msgid "cannot both write and verify reverse index"
 msgstr "неможливо одночасно записувати та звіряти зворотний індекс"
 
@@ -18359,10 +18489,6 @@
 msgstr "%s очікує невід'ємне ціле значення з опціональним суфіксом k/m/g"
 
 #, c-format
-msgid "%s is incompatible with %s"
-msgstr "%s несумісний з %s"
-
-#, c-format
 msgid "ambiguous option: %s (could be --%s%s or --%s%s)"
 msgstr "неоднозначна опція: %s (може бути --%s%s або --%s%s)"
 
@@ -18469,7 +18595,7 @@
 
 #, c-format
 msgid "bad boolean environment value '%s' for '%s'"
-msgstr "невірне булеве значення конфігурації \"%s\" для \"%s\""
+msgstr "невірне булеве значення оточення \"%s\" для \"%s\""
 
 #, c-format
 msgid "failed to parse %s"
@@ -18684,10 +18810,6 @@
 msgstr "не вдалося додати \"%s\" до індексу"
 
 #, c-format
-msgid "unable to stat '%s'"
-msgstr "не вдалося виконати stat для \"%s\""
-
-#, c-format
 msgid "'%s' appears as both a file and as a directory"
 msgstr "\"%s\" відображається як файл і як каталог"
 
@@ -19261,10 +19383,6 @@
 msgstr "неможливо обробити \"%s\" і \"%s\" одночасно"
 
 #, c-format
-msgid "could not remove reference %s"
-msgstr "не вдалося видалити посилання %s"
-
-#, c-format
 msgid "could not delete reference %s: %s"
 msgstr "не вдалося видалити посилання %s: %s"
 
@@ -20651,6 +20769,9 @@
 msgid "Autostash exists; creating a new stash entry."
 msgstr "Автосхов існує; створення нового запису схову."
 
+msgid "autostash reference is a symref"
+msgstr "посилання автосхову є символьним посиланням"
+
 msgid "could not detach HEAD"
 msgstr "не вдалося відʼєднати HEAD"
 
@@ -20972,6 +21093,10 @@
 msgstr "неприпустиме початкове ім’я гілки: \"%s\""
 
 #, c-format
+msgid "re-init: ignored --initial-branch=%s"
+msgstr "re-init: ігноровано --initial-branch=%s"
+
+#, c-format
 msgid "unable to handle file type %d"
 msgstr "не вдалося обробити тип файлу %d"
 
@@ -20982,15 +21107,15 @@
 msgid "attempt to reinitialize repository with different hash"
 msgstr "спроба переініціалізувати репозиторій з іншим хеш-алгоритмом"
 
+msgid ""
+"attempt to reinitialize repository with different reference storage format"
+msgstr "спроба переініціалізувати сховище з іншим форматом зберігання"
+
 #, c-format
 msgid "%s already exists"
 msgstr "%s вже існує"
 
 #, c-format
-msgid "re-init: ignored --initial-branch=%s"
-msgstr "re-init: ігноровано --initial-branch=%s"
-
-#, c-format
 msgid "Reinitialized existing shared Git repository in %s%s\n"
 msgstr "Переініціалізовано існуюче спільне Git сховище в %s%s\n"
 
@@ -21261,12 +21386,6 @@
 msgstr ""
 "кількість записів у дереві кешу, які потрібно анулювати (за замовчуванням 0)"
 
-msgid "unhandled options"
-msgstr "необроблені опції"
-
-msgid "error preparing revisions"
-msgstr "помилка при підготовці ревізій"
-
 #, c-format
 msgid "commit %s is not marked reachable"
 msgstr "коміт %s не позначений як досяжний"
@@ -21423,9 +21542,6 @@
 msgid "invalid remote service path"
 msgstr "неприпустимий шлях до віддаленої служби"
 
-msgid "operation not supported by protocol"
-msgstr "операція не підтримується протоколом"
-
 #, c-format
 msgid "can't connect to subservice %s"
 msgstr "неможливо підключитися до підсервісу %s"
@@ -21558,10 +21674,6 @@
 msgstr "підтримка протоколу v2 ще не запроваджена"
 
 #, c-format
-msgid "unknown value for config '%s': %s"
-msgstr "невідоме значення для конфігурації \"%s\": %s"
-
-#, c-format
 msgid "transport '%s' not allowed"
 msgstr "засіб передачі \"%s\" не дозволений"
 
@@ -21613,6 +21725,9 @@
 msgid "could not retrieve server-advertised bundle-uri list"
 msgstr "не вдалося отримати список адрес пакетів, оголошений сервером"
 
+msgid "operation not supported by protocol"
+msgstr "операція не підтримується протоколом"
+
 msgid "too-short tree object"
 msgstr "занадто короткий обʼєкт дерева"
 
@@ -22014,7 +22129,7 @@
 msgstr "не вдалося отримати випадкові байти"
 
 msgid "Unmerged paths:"
-msgstr "не злиті шляхи:"
+msgstr "Не злиті шляхи:"
 
 msgid "  (use \"git restore --staged <file>...\" to unstage)"
 msgstr ""
@@ -22466,6 +22581,10 @@
 msgid "cannot %s: Your index contains uncommitted changes."
 msgstr "неможливо виконати %s: Ваш індекс містить незакомічені зміни."
 
+#, c-format
+msgid "unknown style '%s' given for '%s'"
+msgstr "невідомий стиль \"%s\" наданий для \"%s\""
+
 msgid ""
 "Error: Your local changes to the following files would be overwritten by "
 "merge"
diff --git a/po/zh_CN.po b/po/zh_CN.po
index 8640272..39efaf1 100644
--- a/po/zh_CN.po
+++ b/po/zh_CN.po
@@ -46,6 +46,7 @@
 #   commit                           |  提交
 #   commit message                   |  提交说明
 #   commit object                    |  提交对象
+#   commit-graph                     |  提交图
 #   commit-ish (also committish)     |  提交号
 #   cone                             |  锥形（稀疏检出模型）；锥（稀疏检出）
 #   conflict                         |  冲突
@@ -99,6 +100,7 @@
 #   plumbing                         |  管件（Git 底层核心命令的别称）
 #   porcelain                        |  瓷件（Git 上层封装命令的别称）
 #   precious-objects repo            |  珍品仓库
+#   preferred pack                   |  首选包（多包索引中引入的首选包概念）
 #   promisor                         |  承诺者
 #   prune                            |  清除
 #   pull                             |  拉，拉取
@@ -151,8 +153,8 @@
 msgstr ""
 "Project-Id-Version: Git\n"
 "Report-Msgid-Bugs-To: Git Mailing List <git@vger.kernel.org>\n"
-"POT-Creation-Date: 2023-11-10 10:49+0800\n"
-"PO-Revision-Date: 2023-11-10 17:13+0800\n"
+"POT-Creation-Date: 2024-02-16 14:27+0800\n"
+"PO-Revision-Date: 2024-02-18 11:47+0800\n"
 "Last-Translator: Teng Long <dyroneteng@gmail.com>\n"
 "Language-Team: GitHub <https://github.com/dyrone/git/>\n"
 "Language: zh_CN\n"
@@ -1031,7 +1033,7 @@
 msgstr "未关闭的引号"
 
 #: alias.c builtin/cat-file.c builtin/notes.c builtin/prune-packed.c
-#: builtin/receive-pack.c builtin/tag.c
+#: builtin/receive-pack.c builtin/tag.c t/helper/test-pkt-line.c
 msgid "too many arguments"
 msgstr "太多参数"
 
@@ -1046,12 +1048,13 @@
 msgstr "未能识别的空白字符忽略选项 '%s'"
 
 #: apply.c archive.c builtin/add.c builtin/branch.c builtin/checkout-index.c
-#: builtin/checkout.c builtin/clone.c builtin/commit.c builtin/describe.c
-#: builtin/diff-tree.c builtin/difftool.c builtin/fast-export.c builtin/fetch.c
-#: builtin/help.c builtin/index-pack.c builtin/init-db.c builtin/log.c
-#: builtin/ls-files.c builtin/merge-base.c builtin/merge.c
-#: builtin/pack-objects.c builtin/push.c builtin/rebase.c builtin/repack.c
-#: builtin/reset.c builtin/rev-list.c builtin/show-branch.c builtin/stash.c
+#: builtin/checkout.c builtin/clean.c builtin/clone.c builtin/commit.c
+#: builtin/describe.c builtin/diff-tree.c builtin/difftool.c
+#: builtin/fast-export.c builtin/fetch.c builtin/help.c builtin/index-pack.c
+#: builtin/init-db.c builtin/log.c builtin/ls-files.c builtin/merge-base.c
+#: builtin/merge-tree.c builtin/merge.c builtin/pack-objects.c builtin/rebase.c
+#: builtin/repack.c builtin/replay.c builtin/reset.c builtin/rev-list.c
+#: builtin/rev-parse.c builtin/show-branch.c builtin/stash.c
 #: builtin/submodule--helper.c builtin/tag.c builtin/worktree.c parse-options.c
 #: range-diff.c revision.c
 #, c-format
@@ -1861,6 +1864,11 @@
 
 #: archive.c
 #, c-format
+msgid "extra command line parameter '%s'"
+msgstr "额外的命令行参数：'%s'"
+
+#: archive.c
+#, c-format
 msgid "Unknown archive format '%s'"
 msgstr "未知归档格式 '%s'"
 
@@ -1915,6 +1923,17 @@
 msgid "bad --attr-source or GIT_ATTR_SOURCE"
 msgstr "错误的 --attr-source 或 GIT_ATTR_SOURCE"
 
+#: attr.c read-cache.c
+#, c-format
+msgid "unable to stat '%s'"
+msgstr "无法对 %s 执行 stat"
+
+#: bisect.c builtin/cat-file.c builtin/index-pack.c builtin/notes.c
+#: builtin/pack-objects.c combine-diff.c rerere.c
+#, c-format
+msgid "unable to read %s"
+msgstr "不能读 %s"
+
 #: bisect.c
 #, c-format
 msgid "Badly quoted content in file '%s': %s"
@@ -2448,8 +2467,8 @@
 msgstr "'%2$s' 的错误动作 '%1$s'"
 
 #: builtin/am.c builtin/blame.c builtin/fetch.c builtin/pack-objects.c
-#: builtin/pull.c diff-merges.c gpg-interface.c ls-refs.c parallel-checkout.c
-#: sequencer.c setup.c
+#: builtin/pull.c config.c diff-merges.c gpg-interface.c ls-refs.c
+#: parallel-checkout.c sequencer.c setup.c
 #, c-format
 msgid "invalid value for '%s': '%s'"
 msgstr "'%s' 的值无效：'%s'"
@@ -2602,8 +2621,7 @@
 msgid "applying to an empty history"
 msgstr "正应用到一个空历史上"
 
-#: builtin/am.c builtin/commit.c builtin/merge.c sequencer.c
-#: t/helper/test-fast-rebase.c
+#: builtin/am.c builtin/commit.c builtin/merge.c builtin/replay.c sequencer.c
 msgid "failed to write commit object"
 msgstr "无法写提交对象"
 
@@ -2783,8 +2801,9 @@
 msgstr "n"
 
 #: builtin/am.c builtin/branch.c builtin/bugreport.c builtin/cat-file.c
-#: builtin/diagnose.c builtin/for-each-ref.c builtin/ls-files.c
-#: builtin/ls-tree.c builtin/replace.c builtin/tag.c builtin/verify-tag.c
+#: builtin/clone.c builtin/diagnose.c builtin/for-each-ref.c builtin/init-db.c
+#: builtin/ls-files.c builtin/ls-tree.c builtin/replace.c builtin/tag.c
+#: builtin/verify-tag.c
 msgid "format"
 msgstr "格式"
 
@@ -2916,7 +2935,9 @@
 msgid ""
 "git bisect start [--term-(new|bad)=<term> --term-(old|good)=<term>]    [--no-"
 "checkout] [--first-parent] [<bad> [<good>...]] [--]    [<pathspec>...]"
-msgstr "git bisect start [--term-{new|bad}=<术语> --term-{old|good}=<术语>]    [--no-checkout] [--first-parent] [<坏> [<好>...]] [--]    [<路径规格>...]"
+msgstr ""
+"git bisect start [--term-{new|bad}=<术语> --term-{old|good}=<术语>]    [--no-"
+"checkout] [--first-parent] [<坏> [<好>...]] [--]    [<路径规格>...]"
 
 #: builtin/bisect.c
 msgid "git bisect (good|bad) [<rev>...]"
@@ -3473,12 +3494,13 @@
 
 #: builtin/branch.c
 #, c-format
-msgid ""
-"the branch '%s' is not fully merged.\n"
-"If you are sure you want to delete it, run 'git branch -D %s'"
-msgstr ""
-"分支 '%s' 没有完全合并。\n"
-"如果您确认要删除它，执行 'git branch -D %s'"
+msgid "the branch '%s' is not fully merged"
+msgstr "分支 '%s' 没有完全合并"
+
+#: builtin/branch.c
+#, c-format
+msgid "If you are sure you want to delete it, run 'git branch -D %s'"
+msgstr "如果您确认要删除它，执行 'git branch -D %s'"
 
 #: builtin/branch.c
 msgid "update of config-file failed"
@@ -4488,7 +4510,7 @@
 msgid "HEAD is now at"
 msgstr "HEAD 目前位于"
 
-#: builtin/checkout.c builtin/clone.c t/helper/test-fast-rebase.c
+#: builtin/checkout.c builtin/clone.c
 msgid "unable to update HEAD"
 msgstr "不能更新 HEAD"
 
@@ -4757,8 +4779,8 @@
 msgstr "新分支"
 
 #: builtin/checkout.c
-msgid "new unparented branch"
-msgstr "新的没有父提交的分支"
+msgid "new unborn branch"
+msgstr "新的未诞生的分支"
 
 #: builtin/checkout.c builtin/merge.c
 msgid "update ignored files (default)"
@@ -4824,7 +4846,7 @@
 msgid "you must specify path(s) to restore"
 msgstr "您必须指定要恢复的路径"
 
-#: builtin/checkout.c builtin/clone.c builtin/remote.c
+#: builtin/checkout.c builtin/clone.c builtin/remote.c builtin/replay.c
 #: builtin/submodule--helper.c builtin/worktree.c
 msgid "branch"
 msgstr "分支"
@@ -5065,10 +5087,6 @@
 msgstr ""
 "clean.requireForce 默认为 true 且未提供 -i、-n 或 -f 选项，拒绝执行清理动作"
 
-#: builtin/clean.c
-msgid "-x and -X cannot be used together"
-msgstr "-x 和 -X 不能同时使用"
-
 #: builtin/clone.c
 msgid "git clone [<options>] [--] <repo> [<dir>]"
 msgstr "git clone [<选项>] [--] <仓库> [<路径>]"
@@ -5160,6 +5178,7 @@
 msgstr "从一个特定时间创建一个浅克隆"
 
 #: builtin/clone.c builtin/fetch.c builtin/pull.c builtin/rebase.c
+#: builtin/replay.c
 msgid "revision"
 msgstr "版本"
 
@@ -5187,6 +5206,10 @@
 msgid "separate git dir from working tree"
 msgstr "git目录和工作区分离"
 
+#: builtin/clone.c builtin/init-db.c
+msgid "specify the reference format to use"
+msgstr "指定要使用的引用格式"
+
 #: builtin/clone.c
 msgid "key=value"
 msgstr "key=value"
@@ -5336,11 +5359,10 @@
 msgid "You must specify a repository to clone."
 msgstr "您必须指定一个仓库来克隆。"
 
-#: builtin/clone.c
-msgid ""
-"--bundle-uri is incompatible with --depth, --shallow-since, and --shallow-"
-"exclude"
-msgstr "--bundle-uri 与 --depth、--shallow-since 和 --shallow-exclude 不兼容"
+#: builtin/clone.c builtin/init-db.c setup.c
+#, c-format
+msgid "unknown ref storage format '%s'"
+msgstr "未知的引用存储格式 '%s'"
 
 #: builtin/clone.c
 #, c-format
@@ -5501,7 +5523,7 @@
 "--stdin-commits]\n"
 "                       [--changed-paths] [--[no-]max-new-filters <n>] [--"
 "[no-]progress]\n"
-"                       <split options>"
+"                       <split-options>"
 msgstr ""
 "git commit-graph write [--object-dir <目录>] [--append]\n"
 "                       [--split[=<策略>]] [--reachable | --stdin-packs | --"
@@ -5520,17 +5542,17 @@
 
 #: builtin/commit-graph.c
 msgid "if the commit-graph is split, only verify the tip file"
-msgstr "如果提交图形被拆分，只验证头一个文件"
+msgstr "如果提交图被拆分，只验证头一个文件"
 
 #: builtin/commit-graph.c
 #, c-format
 msgid "Could not open commit-graph '%s'"
-msgstr "无法打开提交图形 '%s'"
+msgstr "无法打开提交图 '%s'"
 
 #: builtin/commit-graph.c
 #, c-format
 msgid "could not open commit-graph chain '%s'"
-msgstr "无法打开提交图形链 '%s'"
+msgstr "无法打开提交图链 '%s'"
 
 #: builtin/commit-graph.c
 #, c-format
@@ -5574,15 +5596,15 @@
 
 #: builtin/commit-graph.c
 msgid "allow writing an incremental commit-graph file"
-msgstr "允许写一个增量提交图形文件"
+msgstr "允许写一个增量提交图文件"
 
 #: builtin/commit-graph.c
 msgid "maximum number of commits in a non-base split commit-graph"
-msgstr "在非基本拆分提交图形中的最大提交数"
+msgstr "在非基本拆分提交图中的最大提交数"
 
 #: builtin/commit-graph.c
 msgid "maximum ratio between two levels of a split commit-graph"
-msgstr "一个拆分提交图形的两个级别之间的最大比率"
+msgstr "一个拆分提交图的两个级别之间的最大比率"
 
 #: builtin/commit-graph.c
 msgid "only expire files older than a given date-time"
@@ -8380,6 +8402,11 @@
 
 #: builtin/grep.c
 #, c-format
+msgid "unable to read tree %s"
+msgstr "无法读取树 %s"
+
+#: builtin/grep.c
+#, c-format
 msgid "unable to grep from object of type %s"
 msgstr "无法抓取来自于 %s 类型的对象"
 
@@ -8901,11 +8928,6 @@
 msgid "SHA1 COLLISION FOUND WITH %s !"
 msgstr "发现 %s 出现 SHA1 冲突！"
 
-#: builtin/index-pack.c builtin/pack-objects.c
-#, c-format
-msgid "unable to read %s"
-msgstr "不能读 %s"
-
 #: builtin/index-pack.c
 #, c-format
 msgid "cannot read existing object info %s"
@@ -9083,11 +9105,13 @@
 msgid ""
 "git init [-q | --quiet] [--bare] [--template=<template-directory>]\n"
 "         [--separate-git-dir <git-dir>] [--object-format=<format>]\n"
+"         [--ref-format=<format>]\n"
 "         [-b <branch-name> | --initial-branch=<branch-name>]\n"
 "         [--shared[=<permissions>]] [<directory>]"
 msgstr ""
 "git init [-q | --quiet] [--bare] [--template=<模板目录>]\n"
 "         [--separate-git-dir <git 目录>] [--object-format=<格式>]\n"
+"         [--ref-format=<格式>]\n"
 "         [-b <分支名> | --initial-branch=<分支名>]\n"
 "         [--shared[=<权限>]] [<目录>]"
 
@@ -9246,7 +9270,7 @@
 "<file>"
 msgstr "跟踪 <文件> 中 <开始>,<结束> 范围内的行或函数 :<函数名> 的演变"
 
-#: builtin/log.c builtin/shortlog.c bundle.c
+#: builtin/log.c builtin/replay.c builtin/shortlog.c bundle.c
 #, c-format
 msgid "unrecognized argument: %s"
 msgstr "未能识别的参数：%s"
@@ -9990,6 +10014,12 @@
 "git merge-file [<选项>] [-L <名字1> [-L <初始名字> [-L <名字2>]]] <文件1> <初"
 "始文件> <文件2>"
 
+#: builtin/merge-file.c diff.c
+msgid ""
+"option diff-algorithm accepts \"myers\", \"minimal\", \"patience\" and "
+"\"histogram\""
+msgstr "选项 diff-algorithm 接受参数 \"myers\"、\"minimal\"、\"patience\" 和 \"histogram\""
+
 #: builtin/merge-file.c
 msgid "send results to standard output"
 msgstr "将结果发送到标准输出"
@@ -10018,6 +10048,14 @@
 msgid "for conflicts, use a union version"
 msgstr "如果冲突，使用联合版本"
 
+#: builtin/merge-file.c diff.c
+msgid "<algorithm>"
+msgstr "<算法>"
+
+#: builtin/merge-file.c diff.c
+msgid "choose a diff algorithm"
+msgstr "选择一个差异算法"
+
 #: builtin/merge-file.c
 msgid "for conflicts, use this marker size"
 msgstr "如果冲突，使用指定长度的标记"
@@ -10135,10 +10173,6 @@
 msgid "unknown strategy option: -X%s"
 msgstr "未知的策略选项：-X%s"
 
-#: builtin/merge-tree.c
-msgid "--merge-base is incompatible with --stdin"
-msgstr "--merge-base 与 --stdin 不兼容"
-
 #: builtin/merge-tree.c builtin/notes.c
 #, c-format
 msgid "malformed input line: '%s'."
@@ -10296,7 +10330,7 @@
 msgid "Bad branch.%s.mergeoptions string: %s"
 msgstr "坏的 branch.%s.mergeoptions 字符串：%s"
 
-#: builtin/merge.c builtin/stash.c merge-recursive.c
+#: builtin/merge.c merge-recursive.c
 msgid "Unable to write index."
 msgstr "不能写入索引。"
 
@@ -10304,7 +10338,7 @@
 msgid "Not handling anything other than two heads merge."
 msgstr "未处理两个头合并之外的任何操作。"
 
-#: builtin/merge.c t/helper/test-fast-rebase.c
+#: builtin/merge.c
 #, c-format
 msgid "unable to write %s"
 msgstr "不能写 %s"
@@ -11292,6 +11326,11 @@
 
 #: builtin/pack-objects.c
 #, c-format
+msgid "invalid pack.allowPackReuse value: '%s'"
+msgstr "无效的 pack.allowPackReuse 值：'%s'"
+
+#: builtin/pack-objects.c
+#, c-format
 msgid ""
 "value of uploadpack.blobpackfileuri must be of the form '<object-hash> <pack-"
 "hash> <uri>' (got '%s')"
@@ -11614,10 +11653,10 @@
 #, c-format
 msgid ""
 "Total %<PRIu32> (delta %<PRIu32>), reused %<PRIu32> (delta %<PRIu32>), pack-"
-"reused %<PRIu32>"
+"reused %<PRIu32> (from %<PRIuMAX>)"
 msgstr ""
 "总共 %<PRIu32>（差异 %<PRIu32>），复用 %<PRIu32>（差异 %<PRIu32>），包复用 "
-"%<PRIu32>"
+"%<PRIu32>（来自  %<PRIuMAX> 个包）"
 
 #: builtin/pack-redundant.c
 msgid ""
@@ -12691,7 +12730,7 @@
 msgid "The --edit-todo action can only be used during interactive rebase."
 msgstr "动作 --edit-todo 只能用在交互式变基过程中。"
 
-#: builtin/rebase.c t/helper/test-fast-rebase.c
+#: builtin/rebase.c
 msgid "Cannot read HEAD"
 msgstr "不能读取 HEAD"
 
@@ -12737,12 +12776,6 @@
 
 #: builtin/rebase.c
 msgid ""
-"apply options are incompatible with rebase.autoSquash.  Consider adding --no-"
-"autosquash"
-msgstr "应用的选项与 rebase.autoSquash 不兼容。考虑加上 --no-autosquash"
-
-#: builtin/rebase.c
-msgid ""
 "apply options are incompatible with rebase.rebaseMerges.  Consider adding --"
 "no-rebase-merges"
 msgstr "应用的选项与 rebase.rebaseMerges 不兼容。考虑加上 --no-rebase-merges"
@@ -13224,8 +13257,8 @@
 msgid_plural ""
 "Note: Some branches outside the refs/remotes/ hierarchy were not removed;\n"
 "to delete them, use:"
-msgstr[0] "注意：ref/remotes 层级之外的一个分支未被移除。要删除它，使用："
-msgstr[1] "注意：ref/remotes 层级之外的一些分支未被移除。要删除它们，使用："
+msgstr[0] "注意：refs/remotes/ 层级之外的一个分支未被移除。要删除它，使用："
+msgstr[1] "注意：refs/remotes/ 层级之外的一些分支未被移除。要删除它们，使用："
 
 #: builtin/remote.c
 #, c-format
@@ -13956,6 +13989,84 @@
 msgid "only one pattern can be given with -l"
 msgstr "只能为 -l 提供一个模式"
 
+#: builtin/replay.c
+msgid "need some commits to replay"
+msgstr "需要一些提交来重放"
+
+#: builtin/replay.c
+msgid "--onto and --advance are incompatible"
+msgstr "--onto 和 --advance 不兼容"
+
+#: builtin/replay.c
+msgid "all positive revisions given must be references"
+msgstr "提供的所有正向版本必须为引用"
+
+#: builtin/replay.c
+msgid "argument to --advance must be a reference"
+msgstr "--advance 的参数必须是引用"
+
+#: builtin/replay.c
+msgid ""
+"cannot advance target with multiple sources because ordering would be ill-"
+"defined"
+msgstr "不能使用多个源推进目标，因为无法明确如何排序"
+
+#: builtin/replay.c
+msgid ""
+"cannot implicitly determine whether this is an --advance or --onto operation"
+msgstr "不能隐式地确定这是 --advance 还是 --onto 的操作"
+
+#: builtin/replay.c
+msgid ""
+"cannot advance target with multiple source branches because ordering would "
+"be ill-defined"
+msgstr "不能使用多个源分支推进目标，因为无法明确如何排序"
+
+#: builtin/replay.c
+msgid "cannot implicitly determine correct base for --onto"
+msgstr "不能隐式地确定 --onto 正确的基线"
+
+#: builtin/replay.c
+msgid ""
+"(EXPERIMENTAL!) git replay ([--contained] --onto <newbase> | --advance "
+"<branch>) <revision-range>..."
+msgstr "（试验中！）git replay ([--contained] --onto <新基线> | --advance <分支>) <版本范围>..."
+
+#: builtin/replay.c
+msgid "make replay advance given branch"
+msgstr "重放时演进给定的分支"
+
+#: builtin/replay.c
+msgid "replay onto given commit"
+msgstr "重放到给定提交"
+
+#: builtin/replay.c
+msgid "advance all branches contained in revision-range"
+msgstr "演进版本范围中包含的所有分支"
+
+#: builtin/replay.c
+msgid "option --onto or --advance is mandatory"
+msgstr "选项 --onto 或 --advance 必须指定其一"
+
+#: builtin/replay.c
+#, c-format
+msgid ""
+"some rev walking options will be overridden as '%s' bit in 'struct rev_info' "
+"will be forced"
+msgstr "一些版本遍历选项将被覆盖，如 'struct rev_info' 中的 '%s' 位将被强制设定"
+
+#: builtin/replay.c
+msgid "error preparing revisions"
+msgstr "准备版本时错误"
+
+#: builtin/replay.c
+msgid "replaying down to root commit is not supported yet!"
+msgstr "目前还不支持重放到根提交！"
+
+#: builtin/replay.c
+msgid "replaying merge commits is not supported yet!"
+msgstr "目前还不支持重放到合并提交！"
+
 #: builtin/rerere.c
 msgid ""
 "git rerere [clear | forget <pathspec>... | diff | status | remaining | gc]"
@@ -14215,18 +14326,6 @@
 msgid "unknown mode for --abbrev-ref: %s"
 msgstr "未知的 --abbrev-ref 模式：%s"
 
-#: builtin/rev-parse.c revision.c
-msgid "--exclude-hidden cannot be used together with --branches"
-msgstr "--exclude-hidden 不能与 --branches 一起使用"
-
-#: builtin/rev-parse.c revision.c
-msgid "--exclude-hidden cannot be used together with --tags"
-msgstr "--exclude-hidden 不能与 --tags 一起使用"
-
-#: builtin/rev-parse.c revision.c
-msgid "--exclude-hidden cannot be used together with --remotes"
-msgstr "--exclude-hidden 不能与 --remotes 一起使用"
-
 #: builtin/rev-parse.c setup.c
 msgid "this operation must be run in a work tree"
 msgstr "该操作必须在一个工作区中运行"
@@ -14730,11 +14829,6 @@
 msgid "show refs from stdin that aren't in local repository"
 msgstr "显示从标准输入中读入的不在本地仓库中的引用"
 
-#: builtin/show-ref.c
-#, c-format
-msgid "only one of '%s', '%s' or '%s' can be given"
-msgstr "选项 '%s'、'%s' 或 '%s' 只能使用其一"
-
 #: builtin/sparse-checkout.c
 msgid ""
 "git sparse-checkout (init | list | set | add | reapply | disable | check-"
@@ -16509,30 +16603,30 @@
 #: builtin/worktree.c
 #, c-format
 msgid ""
-"If you meant to create a worktree containing a new orphan branch\n"
+"If you meant to create a worktree containing a new unborn branch\n"
 "(branch with no commits) for this repository, you can do so\n"
 "using the --orphan flag:\n"
 "\n"
 "    git worktree add --orphan -b %s %s\n"
 msgstr ""
-"如果你打算为此仓库创建一个包含新的孤立分支\n"
-"（没有提交的分支）的工作区，你可以使用选项\n"
-"--orphan 来执行此操作：\n"
+"如果你打算为此仓库创建一个包含新的未诞生的\n"
+"分支（没有提交的分支）的工作区，你可以使用\n"
+"选项 --orphan 来执行此操作：\n"
 "\n"
 "    git worktree add --orphan -b %s %s\n"
 
 #: builtin/worktree.c
 #, c-format
 msgid ""
-"If you meant to create a worktree containing a new orphan branch\n"
+"If you meant to create a worktree containing a new unborn branch\n"
 "(branch with no commits) for this repository, you can do so\n"
 "using the --orphan flag:\n"
 "\n"
 "    git worktree add --orphan %s\n"
 msgstr ""
-"如果你打算为此仓库创建一个包含新的孤立分支\n"
-"（没有提交的分支）的工作区，你可以使用选项\n"
-"--orphan 来执行此操作：\n"
+"如果你打算为此仓库创建一个包含新的未诞生的\n"
+"分支（没有提交的分支）的工作区，你可以使用\n"
+"选项 --orphan 来执行此操作：\n"
 "\n"
 "    git worktree add --orphan %s\n"
 
@@ -16603,6 +16697,11 @@
 
 #: builtin/worktree.c
 #, c-format
+msgid "could not find created worktree '%s'"
+msgstr "无法找到已创建的工作树 '%s'"
+
+#: builtin/worktree.c
+#, c-format
 msgid "Preparing worktree (new branch '%s')"
 msgstr "准备工作区（新分支 '%s'）"
 
@@ -16646,11 +16745,6 @@
 "请先使用 'add -f' 来覆盖或拉取一个远程仓库"
 
 #: builtin/worktree.c
-#, c-format
-msgid "'%s' and '%s' cannot be used together"
-msgstr "'%s' 和 '%s' 不能同时使用"
-
-#: builtin/worktree.c
 msgid "checkout <branch> even if already checked out in other worktree"
 msgstr "检出 <分支>，即使已经被检出到其它工作区"
 
@@ -16663,8 +16757,8 @@
 msgstr "创建或重置一个分支"
 
 #: builtin/worktree.c
-msgid "create unborn/orphaned branch"
-msgstr "创建一个尚未诞生的/孤立的分支"
+msgid "create unborn branch"
+msgstr "创建一个尚未诞生的分支"
 
 #: builtin/worktree.c
 msgid "populate the new working tree"
@@ -16693,12 +16787,8 @@
 
 #: builtin/worktree.c
 #, c-format
-msgid "options '%s', and '%s' cannot be used together"
-msgstr "选项 '%s' 与 '%s' 不能同时使用"
-
-#: builtin/worktree.c
-msgid "<commit-ish>"
-msgstr "<提交号>"
+msgid "option '%s' and commit-ish cannot be used together"
+msgstr "选项 '%s' 和提交号不能同时使用"
 
 #: builtin/worktree.c
 msgid "added with --lock"
@@ -17489,6 +17579,10 @@
 msgstr "创建、列出、删除对象替换引用"
 
 #: command-list.h
+msgid "EXPERIMENTAL: Replay commits on a new base, works with bare repos too"
+msgstr "试验中：基于一个新基线重放提交，同样适用于纯仓库"
+
+#: command-list.h
 msgid "Generates a summary of pending changes"
 msgstr "生成待定更改的摘要"
 
@@ -17803,39 +17897,82 @@
 
 #: commit-graph.c
 msgid "commit-graph file is too small"
-msgstr "提交图形文件太小"
+msgstr "提交图文件太小"
+
+#: commit-graph.c
+msgid "commit-graph oid fanout chunk is wrong size"
+msgstr "提交图中对象 ID 的扇出块大小错误"
+
+#: commit-graph.c
+msgid "commit-graph fanout values out of order"
+msgstr "提交图的扇出值失序"
+
+#: commit-graph.c
+msgid "commit-graph OID lookup chunk is the wrong size"
+msgstr "提交图的对象 ID 查询块大小错误"
+
+#: commit-graph.c
+msgid "commit-graph commit data chunk is wrong size"
+msgstr "提交图的提交数据块大小错误"
+
+#: commit-graph.c
+msgid "commit-graph generations chunk is wrong size"
+msgstr "提交图的世代块大小错误"
+
+#: commit-graph.c
+msgid "commit-graph changed-path index chunk is too small"
+msgstr "提交图的变更路径的索引块太小"
+
+#: commit-graph.c
+#, c-format
+msgid ""
+"ignoring too-small changed-path chunk (%<PRIuMAX> < %<PRIuMAX>) in commit-"
+"graph file"
+msgstr "忽略提交图文件中过小的更改路径块（%<PRIuMAX> < %<PRIuMAX>）"
 
 #: commit-graph.c
 #, c-format
 msgid "commit-graph signature %X does not match signature %X"
-msgstr "提交图形签名 %X 和签名 %X 不匹配"
+msgstr "提交图签名 %X 和签名 %X 不匹配"
 
 #: commit-graph.c
 #, c-format
 msgid "commit-graph version %X does not match version %X"
-msgstr "提交图形版本 %X 和版本 %X 不匹配"
+msgstr "提交图版本 %X 和版本 %X 不匹配"
 
 #: commit-graph.c
 #, c-format
 msgid "commit-graph hash version %X does not match version %X"
-msgstr "提交图形哈希版本 %X 和版本 %X 不匹配"
+msgstr "提交图哈希版本 %X 和版本 %X 不匹配"
 
 #: commit-graph.c
 #, c-format
 msgid "commit-graph file is too small to hold %u chunks"
-msgstr "提交图形文件太小，容不下 %u 个块"
+msgstr "提交图文件太小，容不下 %u 个块"
+
+#: commit-graph.c
+msgid "commit-graph required OID fanout chunk missing or corrupted"
+msgstr "提交图所需的对象 ID 扇出块缺失或损坏"
+
+#: commit-graph.c
+msgid "commit-graph required OID lookup chunk missing or corrupted"
+msgstr "提交图所需的对象 ID 查询块缺失或损坏"
+
+#: commit-graph.c
+msgid "commit-graph required commit data chunk missing or corrupted"
+msgstr "提交图所需的提交数据块缺失或损坏"
 
 #: commit-graph.c
 msgid "commit-graph has no base graphs chunk"
-msgstr "提交图形没有基础图形块"
+msgstr "提交图没有基础图形块"
 
 #: commit-graph.c
 msgid "commit-graph base graphs chunk is too small"
-msgstr "提交图形的基础图形块过小"
+msgstr "提交图的基础图形块过小"
 
 #: commit-graph.c
 msgid "commit-graph chain does not match"
-msgstr "提交图形链不匹配"
+msgstr "提交图链不匹配"
 
 #: commit-graph.c
 #, c-format
@@ -17843,17 +17980,21 @@
 msgstr "基础图形中的提交数量过高：%<PRIuMAX>"
 
 #: commit-graph.c
+msgid "commit-graph chain file too small"
+msgstr "提交图链文件太小"
+
+#: commit-graph.c
 #, c-format
 msgid "invalid commit-graph chain: line '%s' not a hash"
-msgstr "无效的提交图形链：行 '%s' 不是一个哈希值"
+msgstr "无效的提交图链：行 '%s' 不是一个哈希值"
 
 #: commit-graph.c
 msgid "unable to find all commit-graph files"
-msgstr "无法找到所有提交图形文件"
+msgstr "无法找到所有提交图文件"
 
 #: commit-graph.c
 msgid "invalid commit position. commit-graph is likely corrupt"
-msgstr "无效的提交位置。提交图形可能已损坏"
+msgstr "无效的提交位置。提交图可能已损坏"
 
 #: commit-graph.c
 #, c-format
@@ -17869,6 +18010,10 @@
 msgstr "提交图溢出世代数据过小"
 
 #: commit-graph.c
+msgid "commit-graph extra-edges pointer out of bounds"
+msgstr "提交图额外边的指针越界"
+
+#: commit-graph.c
 msgid "Loading known commits in commit graph"
 msgstr "正在加载提交图中的已知提交"
 
@@ -17943,26 +18088,25 @@
 
 #: commit-graph.c
 msgid "unable to open commit-graph chain file"
-msgstr "无法打开提交图形链文件"
+msgstr "无法打开提交图链文件"
 
 #: commit-graph.c
 msgid "failed to rename base commit-graph file"
-msgstr "无法重命名基础提交图形文件"
+msgstr "无法重命名基础提交图文件"
 
 #: commit-graph.c
 msgid "failed to rename temporary commit-graph file"
-msgstr "无法重命名临时提交图形文件"
+msgstr "无法重命名临时提交图文件"
 
 #: commit-graph.c
 #, c-format
 msgid "cannot merge graphs with %<PRIuMAX>, %<PRIuMAX> commits"
-msgstr ""
-"无法合并提交图形，总共已累加提交数：%<PRIuMAX>，当前待累加提交数：%<PRIuMAX>"
+msgstr "无法合并提交图，总共已累加提交数：%<PRIuMAX>，当前待累加提交数：%<PRIuMAX>"
 
 #: commit-graph.c
 #, c-format
 msgid "cannot merge graph %s, too many commits: %<PRIuMAX>"
-msgstr "无法合并提交图形 %s, 提交过多：%<PRIuMAX>"
+msgstr "无法合并提交图 %s, 提交过多：%<PRIuMAX>"
 
 #: commit-graph.c
 msgid "Scanning merged commits"
@@ -17970,7 +18114,7 @@
 
 #: commit-graph.c
 msgid "Merging commit-graph"
-msgstr "正在合并提交图形"
+msgstr "正在合并提交图"
 
 #: commit-graph.c
 msgid "attempting to write a commit-graph, but 'core.commitGraph' is disabled"
@@ -17987,59 +18131,59 @@
 #: commit-graph.c
 #, c-format
 msgid "commit-graph has incorrect OID order: %s then %s"
-msgstr "提交图形的对象 ID 顺序不正确：%s 然后 %s"
+msgstr "提交图的对象 ID 顺序不正确：%s 然后 %s"
 
 #: commit-graph.c
 #, c-format
 msgid "commit-graph has incorrect fanout value: fanout[%d] = %u != %u"
-msgstr "提交图形有不正确的扇出值：fanout[%d] = %u != %u"
+msgstr "提交图有不正确的扇出值：fanout[%d] = %u != %u"
 
 #: commit-graph.c
 #, c-format
 msgid "failed to parse commit %s from commit-graph"
-msgstr "无法从提交图形中解析提交 %s"
+msgstr "无法从提交图中解析提交 %s"
 
 #: commit-graph.c
 #, c-format
 msgid "failed to parse commit %s from object database for commit-graph"
-msgstr "无法从提交图形的对象库中解析提交 %s"
+msgstr "无法从提交图的对象库中解析提交 %s"
 
 #: commit-graph.c
 #, c-format
 msgid "root tree OID for commit %s in commit-graph is %s != %s"
-msgstr "提交图形中的提交 %s 的根树对象 ID 是 %s != %s"
+msgstr "提交图中的提交 %s 的根树对象 ID 是 %s != %s"
 
 #: commit-graph.c
 #, c-format
 msgid "commit-graph parent list for commit %s is too long"
-msgstr "提交 %s 的提交图形父提交列表太长了"
+msgstr "提交 %s 的提交图父提交列表太长了"
 
 #: commit-graph.c
 #, c-format
 msgid "commit-graph parent for %s is %s != %s"
-msgstr "%s 的提交图形父提交是 %s != %s"
+msgstr "%s 的提交图父提交是 %s != %s"
 
 #: commit-graph.c
 #, c-format
 msgid "commit-graph parent list for commit %s terminates early"
-msgstr "提交 %s 的提交图形父提交列表过早终止"
+msgstr "提交 %s 的提交图父提交列表过早终止"
 
 #: commit-graph.c
 #, c-format
 msgid "commit-graph generation for commit %s is %<PRIuMAX> < %<PRIuMAX>"
-msgstr "提交图形中的提交 %s 的世代号是 %<PRIuMAX> < %<PRIuMAX>"
+msgstr "提交图中的提交 %s 的世代号是 %<PRIuMAX> < %<PRIuMAX>"
 
 #: commit-graph.c
 #, c-format
 msgid "commit date for commit %s in commit-graph is %<PRIuMAX> != %<PRIuMAX>"
-msgstr "提交图形中提交 %s 的提交日期是 %<PRIuMAX> != %<PRIuMAX>"
+msgstr "提交图中提交 %s 的提交日期是 %<PRIuMAX> != %<PRIuMAX>"
 
 #: commit-graph.c
 #, c-format
 msgid ""
 "commit-graph has both zero and non-zero generations (e.g., commits '%s' and "
 "'%s')"
-msgstr "提交图形具有零和非零的世代（例如：提交 '%s' 和 '%s'）"
+msgstr "提交图具有零和非零的世代（例如：提交 '%s' 和 '%s'）"
 
 #: commit-graph.c
 msgid "Verifying commits in commit graph"
@@ -18073,7 +18217,7 @@
 #: commit.c
 #, c-format
 msgid "commit %s exists in commit-graph but not in the object database"
-msgstr "提交 %s 存在于提交图形中，但不存在于对象数据库中"
+msgstr "提交 %s 存在于提交图中，但不存在于对象数据库中"
 
 #: commit.c
 #, c-format
@@ -19255,6 +19399,11 @@
 msgid "Unknown value for 'diff.submodule' config variable: '%s'"
 msgstr "配置变量 'diff.submodule' 未知的取值：'%s'"
 
+#: diff.c transport.c
+#, c-format
+msgid "unknown value for config '%s': %s"
+msgstr "配置 '%s' 未知的取值：%s"
+
 #: diff.c
 #, c-format
 msgid ""
@@ -19349,13 +19498,6 @@
 msgstr "--color-moved-ws 中的无效模式 '%s' "
 
 #: diff.c
-msgid ""
-"option diff-algorithm accepts \"myers\", \"minimal\", \"patience\" and "
-"\"histogram\""
-msgstr ""
-"diff-algorithm 选项有 \"myers\"、\"minimal\"、\"patience\" 和 \"histogram\""
-
-#: diff.c
 #, c-format
 msgid "invalid argument to %s"
 msgstr "%s 的参数无效"
@@ -19412,8 +19554,8 @@
 msgstr "只输出 --stat 的最后一行"
 
 #: diff.c
-msgid "<param1,param2>..."
-msgstr "<参数1,参数2>..."
+msgid "<param1>,<param2>..."
+msgstr "<参数1>,<参数2>..."
 
 #: diff.c
 msgid ""
@@ -19425,8 +19567,8 @@
 msgstr "和 --dirstat=cumulative 同义"
 
 #: diff.c
-msgid "synonym for --dirstat=files,param1,param2..."
-msgstr "是 --dirstat=files,param1,param2... 的同义词"
+msgid "synonym for --dirstat=files,<param1>,<param2>..."
+msgstr "是 --dirstat=files,<参数1>,<参数2>... 的同义词"
 
 #: diff.c
 msgid "warn if changes introduce conflict markers or whitespace errors"
@@ -19649,14 +19791,6 @@
 msgstr "使用 \"histogram diff\" 算法生成差异"
 
 #: diff.c
-msgid "<algorithm>"
-msgstr "<算法>"
-
-#: diff.c
-msgid "choose a diff algorithm"
-msgstr "选择一个差异算法"
-
-#: diff.c
 msgid "<text>"
 msgstr "<文本>"
 
@@ -21412,6 +21546,12 @@
 msgstr "多包索引的对象 ID 扇出表大小错误"
 
 #: midx.c
+#, c-format
+msgid ""
+"oid fanout out of order: fanout[%d] = %<PRIx32> > %<PRIx32> = fanout[%d]"
+msgstr "对象 ID 扇出失序：fanout[%d] = %<PRIx32> > %<PRIx32> = fanout[%d]"
+
+#: midx.c
 msgid "multi-pack-index OID lookup chunk is the wrong size"
 msgstr "多包索引的对象 ID 查询块大小错误"
 
@@ -21470,6 +21610,15 @@
 msgstr "错的 pack-int-id：%u（共有 %u 个包）"
 
 #: midx.c
+msgid "MIDX does not contain the BTMP chunk"
+msgstr "多包索引中未包含 BTMP 块"
+
+#: midx.c
+#, c-format
+msgid "could not load bitmapped pack %<PRIu32>"
+msgstr "不能打开已被位图索引的包 %<PRIu32>"
+
+#: midx.c
 msgid "multi-pack-index stores a 64-bit offset, but off_t is too small"
 msgstr "多包索引存储一个64位偏移，但是 off_t 太小"
 
@@ -21577,12 +21726,6 @@
 msgstr "正在查找引用的包文件"
 
 #: midx.c
-#, c-format
-msgid ""
-"oid fanout out of order: fanout[%d] = %<PRIx32> > %<PRIx32> = fanout[%d]"
-msgstr "对象 ID 扇出无序：fanout[%d] = %<PRIx32> > %<PRIx32> = fanout[%d]"
-
-#: midx.c
 msgid "the midx contains no oid"
 msgstr "midx 不包含 oid"
 
@@ -22211,6 +22354,10 @@
 msgid "could not open pack %s"
 msgstr "不能打开包 %s"
 
+#: pack-bitmap.c t/helper/test-read-midx.c
+msgid "could not determine MIDX preferred pack"
+msgstr "不能确定多包索引的首选包"
+
 #: pack-bitmap.c
 #, c-format
 msgid "preferred pack (%s) is invalid"
@@ -22236,6 +22383,11 @@
 
 #: pack-bitmap.c
 #, c-format
+msgid "unable to load pack: '%s', disabling pack-reuse"
+msgstr "无法打开包：'%s'，禁用包重用"
+
+#: pack-bitmap.c
+#, c-format
 msgid "object '%s' not found in type bitmaps"
 msgstr "对象 %s 为在类型位图中找到"
 
@@ -22349,6 +22501,10 @@
 msgid "multi-pack-index reverse-index chunk is the wrong size"
 msgstr "多包索引的反向索引块大小错误"
 
+#: pack-revindex.c
+msgid "could not determine preferred pack"
+msgstr "无法确定首选包"
+
 #: pack-write.c
 msgid "cannot both write and verify reverse index"
 msgstr "无法同时写入和校验反向索引"
@@ -22429,11 +22585,6 @@
 
 #: parse-options.c
 #, c-format
-msgid "%s is incompatible with %s"
-msgstr "%s 与 %s 不兼容"
-
-#: parse-options.c
-#, c-format
 msgid "ambiguous option: %s (could be --%s%s or --%s%s)"
 msgstr "有歧义的选项：%s（可以是 --%s%s 或 --%s%s）"
 
@@ -22823,11 +22974,6 @@
 
 #: read-cache.c
 #, c-format
-msgid "unable to stat '%s'"
-msgstr "无法对 %s 执行 stat"
-
-#: read-cache.c
-#, c-format
 msgid "'%s' appears as both a file and as a directory"
 msgstr "'%s' 看起来既是文件又是目录"
 
@@ -23500,17 +23646,12 @@
 msgid "cannot process '%s' and '%s' at the same time"
 msgstr "无法同时处理 '%s' 和 '%s'"
 
-#: refs/files-backend.c
-#, c-format
-msgid "could not remove reference %s"
-msgstr "无法删除引用 %s"
-
-#: refs/files-backend.c refs/packed-backend.c
+#: refs.c
 #, c-format
 msgid "could not delete reference %s: %s"
 msgstr "无法删除引用 %s：%s"
 
-#: refs/files-backend.c refs/packed-backend.c
+#: refs.c
 #, c-format
 msgid "could not delete references: %s"
 msgstr "无法删除引用：%s"
@@ -24665,7 +24806,7 @@
 msgid "corrupt author: missing date information"
 msgstr "损坏的作者：缺失日期信息"
 
-#: sequencer.c t/helper/test-fast-rebase.c
+#: sequencer.c
 #, c-format
 msgid "could not update %s"
 msgstr "不能更新 %s"
@@ -25156,6 +25297,10 @@
 msgstr "自动贮藏已经存在；正在创建一个新的贮藏条目。"
 
 #: sequencer.c
+msgid "autostash reference is a symref"
+msgstr "自动贮藏的引用是一个符号引用"
+
+#: sequencer.c
 msgid "could not detach HEAD"
 msgstr "不能分离头指针"
 
@@ -25531,6 +25676,11 @@
 
 #: setup.c
 #, c-format
+msgid "re-init: ignored --initial-branch=%s"
+msgstr "re-init：已忽略 --initial-branch=%s"
+
+#: setup.c
+#, c-format
 msgid "unable to handle file type %d"
 msgstr "不能处理 %d 类型的文件"
 
@@ -25544,14 +25694,14 @@
 msgstr "尝试用不同的哈希算法重新初始化仓库"
 
 #: setup.c
-#, c-format
-msgid "%s already exists"
-msgstr "%s 已经存在"
+msgid ""
+"attempt to reinitialize repository with different reference storage format"
+msgstr "尝试使用不同的引用存储格式重新初始化仓库"
 
 #: setup.c
 #, c-format
-msgid "re-init: ignored --initial-branch=%s"
-msgstr "re-init：已忽略 --initial-branch=%s"
+msgid "%s already exists"
+msgstr "%s 已经存在"
 
 #: setup.c
 #, c-format
@@ -25869,14 +26019,6 @@
 msgid "number of entries in the cache tree to invalidate (default 0)"
 msgstr "缓存树中无效化的条目数量（默认 0）"
 
-#: t/helper/test-fast-rebase.c
-msgid "unhandled options"
-msgstr "未处理的选项"
-
-#: t/helper/test-fast-rebase.c
-msgid "error preparing revisions"
-msgstr "准备版本时错误"
-
 #: t/helper/test-reach.c
 #, c-format
 msgid "commit %s is not marked reachable"
@@ -26070,10 +26212,6 @@
 msgid "invalid remote service path"
 msgstr "无效的远程服务路径"
 
-#: transport-helper.c transport.c
-msgid "operation not supported by protocol"
-msgstr "协议不支持该操作"
-
 #: transport-helper.c
 #, c-format
 msgid "can't connect to subservice %s"
@@ -26239,11 +26377,6 @@
 
 #: transport.c
 #, c-format
-msgid "unknown value for config '%s': %s"
-msgstr "配置 '%s' 的取值未知：%s"
-
-#: transport.c
-#, c-format
 msgid "transport '%s' not allowed"
 msgstr "传输 '%s' 不允许"
 
@@ -26301,6 +26434,10 @@
 msgid "could not retrieve server-advertised bundle-uri list"
 msgstr "无法获取服务器公布的 bundle-uri 列表"
 
+#: transport.c
+msgid "operation not supported by protocol"
+msgstr "协议不支持该操作"
+
 #: tree-walk.c
 msgid "too-short tree object"
 msgstr "太短的树对象"
@@ -27329,6 +27466,11 @@
 msgid "cannot %s: Your index contains uncommitted changes."
 msgstr "不能%s：您的索引中包含未提交的变更。"
 
+#: xdiff-interface.c
+#, c-format
+msgid "unknown style '%s' given for '%s'"
+msgstr "'%2$s' 的未知风格取值 '%1$s'"
+
 #: git-merge-octopus.sh git-merge-resolve.sh
 msgid ""
 "Error: Your local changes to the following files would be overwritten by "
diff --git a/po/zh_TW.po b/po/zh_TW.po
index f777a05..312dd12 100644
--- a/po/zh_TW.po
+++ b/po/zh_TW.po
@@ -19,15 +19,15 @@
 # - Yichao Yu <yyc1992 AT gmail.com>
 # - Zhuang Ya <zhuangya AT me.com>
 #
-# Yi-Jyun Pan <pan93412@gmail.com>, 2021, 2022, 2023.
+# Yi-Jyun Pan <pan93412@gmail.com>, 2021, 2022, 2023, 2024.
 # Kaiyang Wu <self@origincode.me>, 2022.
-# lumynou5 <lumynou5.tw@gmail.com>, 2023.
+# lumynou5 <lumynou5.tw@gmail.com>, 2023, 2024.
 msgid ""
 msgstr ""
 "Project-Id-Version: Git\n"
 "Report-Msgid-Bugs-To: Git Mailing List <git@vger.kernel.org>\n"
-"POT-Creation-Date: 2023-11-19 22:29+0800\n"
-"PO-Revision-Date: 2023-11-19 23:34+0800\n"
+"POT-Creation-Date: 2024-02-18 20:48+0800\n"
+"PO-Revision-Date: 2024-02-18 20:50+0800\n"
 "Last-Translator: Yi-Jyun Pan <pan93412@gmail.com>\n"
 "Language-Team: Chinese (Traditional) <http://weblate.slat.org/projects/git-"
 "po/git-cli/zh_Hant/>\n"
@@ -36,7 +36,7 @@
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"
 "Plural-Forms: nplurals=1; plural=0;\n"
-"X-Generator: Poedit 3.4.1\n"
+"X-Generator: Poedit 3.4.2\n"
 "X-ZhConverter: 繁化姬 dict-f4bc617e-r910 @ 2019/11/16 20:23:12 | https://"
 "zhconvert.org\n"
 
@@ -910,7 +910,7 @@
 msgstr "未閉合的引號"
 
 #: alias.c builtin/cat-file.c builtin/notes.c builtin/prune-packed.c
-#: builtin/receive-pack.c builtin/tag.c
+#: builtin/receive-pack.c builtin/tag.c t/helper/test-pkt-line.c
 msgid "too many arguments"
 msgstr "引數過多"
 
@@ -925,12 +925,13 @@
 msgstr "空白字元忽略選項 “%s” 無法識別"
 
 #: apply.c archive.c builtin/add.c builtin/branch.c builtin/checkout-index.c
-#: builtin/checkout.c builtin/clone.c builtin/commit.c builtin/describe.c
-#: builtin/diff-tree.c builtin/difftool.c builtin/fast-export.c builtin/fetch.c
-#: builtin/help.c builtin/index-pack.c builtin/init-db.c builtin/log.c
-#: builtin/ls-files.c builtin/merge-base.c builtin/merge.c
-#: builtin/pack-objects.c builtin/push.c builtin/rebase.c builtin/repack.c
-#: builtin/reset.c builtin/rev-list.c builtin/show-branch.c builtin/stash.c
+#: builtin/checkout.c builtin/clean.c builtin/clone.c builtin/commit.c
+#: builtin/describe.c builtin/diff-tree.c builtin/difftool.c
+#: builtin/fast-export.c builtin/fetch.c builtin/help.c builtin/index-pack.c
+#: builtin/init-db.c builtin/log.c builtin/ls-files.c builtin/merge-base.c
+#: builtin/merge-tree.c builtin/merge.c builtin/pack-objects.c builtin/rebase.c
+#: builtin/repack.c builtin/replay.c builtin/reset.c builtin/rev-list.c
+#: builtin/rev-parse.c builtin/show-branch.c builtin/stash.c
 #: builtin/submodule--helper.c builtin/tag.c builtin/worktree.c parse-options.c
 #: range-diff.c revision.c
 #, c-format
@@ -1240,12 +1241,12 @@
 #: apply.c
 #, c-format
 msgid "new mode (%o) of %s does not match old mode (%o)"
-msgstr "%2$s 的新模式 (%1$o) 和舊模式 (%3$o) 不符"
+msgstr "%2$s 的新模式（%1$o）和舊模式（%3$o）不符"
 
 #: apply.c
 #, c-format
 msgid "new mode (%o) of %s does not match old mode (%o) of %s"
-msgstr "%2$s 的新模式 (%1$o) 和 %4$s 的舊模式 (%3$o) 不符"
+msgstr "%2$s 的新模式（%1$o）和 %4$s 的舊模式（%3$o）不符"
 
 #: apply.c
 #, c-format
@@ -1734,6 +1735,11 @@
 
 #: archive.c
 #, c-format
+msgid "extra command line parameter '%s'"
+msgstr "多出命令列參數 “%s”"
+
+#: archive.c
+#, c-format
 msgid "Unknown archive format '%s'"
 msgstr "封存格式 “%s” 未知"
 
@@ -1788,6 +1794,17 @@
 msgid "bad --attr-source or GIT_ATTR_SOURCE"
 msgstr "無效的 --attr-source 或 GIT_ATTR_SOURCE"
 
+#: attr.c read-cache.c
+#, c-format
+msgid "unable to stat '%s'"
+msgstr "無法對 %s 執行 stat"
+
+#: bisect.c builtin/cat-file.c builtin/index-pack.c builtin/notes.c
+#: builtin/pack-objects.c combine-diff.c rerere.c
+#, c-format
+msgid "unable to read %s"
+msgstr "不能讀 %s"
+
 #: bisect.c
 #, c-format
 msgid "Badly quoted content in file '%s': %s"
@@ -2323,8 +2340,8 @@
 msgstr "“%s” 動作對 “%s” 無效"
 
 #: builtin/am.c builtin/blame.c builtin/fetch.c builtin/pack-objects.c
-#: builtin/pull.c diff-merges.c gpg-interface.c ls-refs.c parallel-checkout.c
-#: sequencer.c setup.c
+#: builtin/pull.c config.c diff-merges.c gpg-interface.c ls-refs.c
+#: parallel-checkout.c sequencer.c setup.c
 #, c-format
 msgid "invalid value for '%s': '%s'"
 msgstr "“%s” 的值無效：“%s”"
@@ -2477,8 +2494,7 @@
 msgid "applying to an empty history"
 msgstr "正在套用至空白歷史記錄上"
 
-#: builtin/am.c builtin/commit.c builtin/merge.c sequencer.c
-#: t/helper/test-fast-rebase.c
+#: builtin/am.c builtin/commit.c builtin/merge.c builtin/replay.c sequencer.c
 msgid "failed to write commit object"
 msgstr "無法寫入提交物件"
 
@@ -2661,8 +2677,9 @@
 msgstr "n"
 
 #: builtin/am.c builtin/branch.c builtin/bugreport.c builtin/cat-file.c
-#: builtin/diagnose.c builtin/for-each-ref.c builtin/ls-files.c
-#: builtin/ls-tree.c builtin/replace.c builtin/tag.c builtin/verify-tag.c
+#: builtin/clone.c builtin/diagnose.c builtin/for-each-ref.c builtin/init-db.c
+#: builtin/ls-files.c builtin/ls-tree.c builtin/replace.c builtin/tag.c
+#: builtin/verify-tag.c
 msgid "format"
 msgstr "format"
 
@@ -3357,12 +3374,13 @@
 
 #: builtin/branch.c
 #, c-format
-msgid ""
-"the branch '%s' is not fully merged.\n"
-"If you are sure you want to delete it, run 'git branch -D %s'"
-msgstr ""
-"分支 “%s” 沒有完全合併。\n"
-"如果確定要刪除它，請執行 “git branch -D %s”"
+msgid "the branch '%s' is not fully merged"
+msgstr "分支 “%s” 沒有完全合併"
+
+#: builtin/branch.c
+#, c-format
+msgid "If you are sure you want to delete it, run 'git branch -D %s'"
+msgstr "如果確定要刪除它，請執行 “git branch -D %s”"
 
 #: builtin/branch.c
 msgid "update of config-file failed"
@@ -4370,7 +4388,7 @@
 msgid "HEAD is now at"
 msgstr "HEAD 目前位於"
 
-#: builtin/checkout.c builtin/clone.c t/helper/test-fast-rebase.c
+#: builtin/checkout.c builtin/clone.c
 msgid "unable to update HEAD"
 msgstr "無法更新 HEAD"
 
@@ -4631,8 +4649,8 @@
 msgstr "new-branch"
 
 #: builtin/checkout.c
-msgid "new unparented branch"
-msgstr "新的，沒有父提交的分支"
+msgid "new unborn branch"
+msgstr "新的未誕生分支"
 
 #: builtin/checkout.c builtin/merge.c
 msgid "update ignored files (default)"
@@ -4699,7 +4717,7 @@
 msgid "you must specify path(s) to restore"
 msgstr "您必須指定要還原的路徑"
 
-#: builtin/checkout.c builtin/clone.c builtin/remote.c
+#: builtin/checkout.c builtin/clone.c builtin/remote.c builtin/replay.c
 #: builtin/submodule--helper.c builtin/worktree.c
 msgid "branch"
 msgstr "branch"
@@ -4940,10 +4958,6 @@
 msgstr ""
 "clean.requireForce 預設為 true 且未提供 -i、-n 或 -f 選項，拒絕執行清理動作"
 
-#: builtin/clean.c
-msgid "-x and -X cannot be used together"
-msgstr "-x 和 -X 不能同時使用"
-
 #: builtin/clone.c
 msgid "git clone [<options>] [--] <repo> [<dir>]"
 msgstr "git clone [<options>] [--] <repo> [<dir>]"
@@ -5035,6 +5049,7 @@
 msgstr "建立從指定時間到現在的淺層複製"
 
 #: builtin/clone.c builtin/fetch.c builtin/pull.c builtin/rebase.c
+#: builtin/replay.c
 msgid "revision"
 msgstr "revision"
 
@@ -5062,6 +5077,10 @@
 msgid "separate git dir from working tree"
 msgstr "git 目錄和工作區分離"
 
+#: builtin/clone.c builtin/init-db.c
+msgid "specify the reference format to use"
+msgstr "指定要使用的引用格式"
+
 #: builtin/clone.c
 msgid "key=value"
 msgstr "key=value"
@@ -5211,11 +5230,10 @@
 msgid "You must specify a repository to clone."
 msgstr "您必須指定要複製的版本庫。"
 
-#: builtin/clone.c
-msgid ""
-"--bundle-uri is incompatible with --depth, --shallow-since, and --shallow-"
-"exclude"
-msgstr "--bundle-uri 與 --depth、--shallow-since 和 --shallow-exclude 不相容"
+#: builtin/clone.c builtin/init-db.c setup.c
+#, c-format
+msgid "unknown ref storage format '%s'"
+msgstr "未知的引用儲存格式 “%s”"
 
 #: builtin/clone.c
 #, c-format
@@ -5376,14 +5394,14 @@
 "--stdin-commits]\n"
 "                       [--changed-paths] [--[no-]max-new-filters <n>] [--"
 "[no-]progress]\n"
-"                       <split options>"
+"                       <split-options>"
 msgstr ""
 "git commit-graph write [--object-dir <dir>] [--append]\n"
 "                       [--split[=<strategy>]] [--reachable | --stdin-packs | "
 "--stdin-commits]\n"
 "                       [--changed-paths] [--[no-]max-new-filters <n>] [--"
 "[no-]progress]\n"
-"                       <split options>"
+"                       <split-options>"
 
 #: builtin/commit-graph.c builtin/fetch.c builtin/log.c builtin/repack.c
 msgid "dir"
@@ -8264,6 +8282,11 @@
 
 #: builtin/grep.c
 #, c-format
+msgid "unable to read tree %s"
+msgstr "無法讀取 %s 樹狀物件"
+
+#: builtin/grep.c
+#, c-format
 msgid "unable to grep from object of type %s"
 msgstr "無法抓取來自於 %s 類型的物件"
 
@@ -8784,11 +8807,6 @@
 msgid "SHA1 COLLISION FOUND WITH %s !"
 msgstr "發現 %s 出現 SHA1 衝突！"
 
-#: builtin/index-pack.c builtin/pack-objects.c
-#, c-format
-msgid "unable to read %s"
-msgstr "不能讀 %s"
-
 #: builtin/index-pack.c
 #, c-format
 msgid "cannot read existing object info %s"
@@ -8962,11 +8980,13 @@
 msgid ""
 "git init [-q | --quiet] [--bare] [--template=<template-directory>]\n"
 "         [--separate-git-dir <git-dir>] [--object-format=<format>]\n"
+"         [--ref-format=<format>]\n"
 "         [-b <branch-name> | --initial-branch=<branch-name>]\n"
 "         [--shared[=<permissions>]] [<directory>]"
 msgstr ""
 "git init [-q | --quiet] [--bare] [--template=<template-directory>]\n"
 "         [--separate-git-dir <git-dir>] [--object-format=<format>]\n"
+"         [--ref-format=<format>]\n"
 "         [-b <branch-name> | --initial-branch=<branch-name>]\n"
 "         [--shared[=<permissions>]] [<directory>]"
 
@@ -9125,7 +9145,7 @@
 "<file>"
 msgstr "追蹤 <開始>,<結束> 範圍中橫列或 <檔案> 中> :<函數名稱> 的變化史"
 
-#: builtin/log.c builtin/shortlog.c bundle.c
+#: builtin/log.c builtin/replay.c builtin/shortlog.c bundle.c
 #, c-format
 msgid "unrecognized argument: %s"
 msgstr "無法識別的參數：%s"
@@ -9868,6 +9888,13 @@
 "git merge-file [<選項>] [-L <檔案1> [-L <初始> [-L <名字2>]]] <檔案1> <初始文"
 "件> <檔案2>"
 
+#: builtin/merge-file.c diff.c
+msgid ""
+"option diff-algorithm accepts \"myers\", \"minimal\", \"patience\" and "
+"\"histogram\""
+msgstr ""
+"diff-algorithm 選項有 \"myers\"、\"minimal\"、\"patience\" 和 \"histogram\""
+
 #: builtin/merge-file.c
 msgid "send results to standard output"
 msgstr "將結果傳送到標準輸出"
@@ -9896,6 +9923,14 @@
 msgid "for conflicts, use a union version"
 msgstr "如果衝突，使用聯合版本"
 
+#: builtin/merge-file.c diff.c
+msgid "<algorithm>"
+msgstr "<演算法>"
+
+#: builtin/merge-file.c diff.c
+msgid "choose a diff algorithm"
+msgstr "選擇一個差異演算法"
+
 #: builtin/merge-file.c
 msgid "for conflicts, use this marker size"
 msgstr "如果衝突，使用指定長度的標記"
@@ -10012,10 +10047,6 @@
 msgid "unknown strategy option: -X%s"
 msgstr "未知的策略選項：-X%s"
 
-#: builtin/merge-tree.c
-msgid "--merge-base is incompatible with --stdin"
-msgstr "--merge-base 與 --stdin 不相容"
-
 #: builtin/merge-tree.c builtin/notes.c
 #, c-format
 msgid "malformed input line: '%s'."
@@ -10174,7 +10205,7 @@
 msgid "Bad branch.%s.mergeoptions string: %s"
 msgstr "壞的 branch.%s.mergeoptions 字串：%s"
 
-#: builtin/merge.c builtin/stash.c merge-recursive.c
+#: builtin/merge.c merge-recursive.c
 msgid "Unable to write index."
 msgstr "不能寫入索引。"
 
@@ -10182,7 +10213,7 @@
 msgid "Not handling anything other than two heads merge."
 msgstr "未處理兩個頭合併之外的任何動作。"
 
-#: builtin/merge.c t/helper/test-fast-rebase.c
+#: builtin/merge.c
 #, c-format
 msgid "unable to write %s"
 msgstr "不能寫 %s"
@@ -11170,6 +11201,11 @@
 
 #: builtin/pack-objects.c
 #, c-format
+msgid "invalid pack.allowPackReuse value: '%s'"
+msgstr "無效的 pack.allowPackReuse 值：“%s”"
+
+#: builtin/pack-objects.c
+#, c-format
 msgid ""
 "value of uploadpack.blobpackfileuri must be of the form '<object-hash> <pack-"
 "hash> <uri>' (got '%s')"
@@ -11492,10 +11528,10 @@
 #, c-format
 msgid ""
 "Total %<PRIu32> (delta %<PRIu32>), reused %<PRIu32> (delta %<PRIu32>), pack-"
-"reused %<PRIu32>"
+"reused %<PRIu32> (from %<PRIuMAX>)"
 msgstr ""
 "總共 %<PRIu32> (差異 %<PRIu32>)，復用 %<PRIu32> (差異 %<PRIu32>)，重用包 "
-"%<PRIu32>"
+"%<PRIu32> (總共 %<PRIuMAX>)"
 
 #: builtin/pack-redundant.c
 msgid ""
@@ -12574,7 +12610,7 @@
 msgid "The --edit-todo action can only be used during interactive rebase."
 msgstr "動作 --edit-todo 只能用在互動式重定基底過程中。"
 
-#: builtin/rebase.c t/helper/test-fast-rebase.c
+#: builtin/rebase.c
 msgid "Cannot read HEAD"
 msgstr "不能讀取 HEAD"
 
@@ -12620,12 +12656,6 @@
 
 #: builtin/rebase.c
 msgid ""
-"apply options are incompatible with rebase.autoSquash.  Consider adding --no-"
-"autosquash"
-msgstr "apply 選項與 rebase.autoSquash 不相容。請考慮加上 --no-autosquash"
-
-#: builtin/rebase.c
-msgid ""
 "apply options are incompatible with rebase.rebaseMerges.  Consider adding --"
 "no-rebase-merges"
 msgstr "apply 選項與 rebase.rebaseMerges 不相容。請考慮加上 --no-rebase-merges"
@@ -13109,7 +13139,7 @@
 msgid_plural ""
 "Note: Some branches outside the refs/remotes/ hierarchy were not removed;\n"
 "to delete them, use:"
-msgstr[0] "注意：ref/remotes 層級之外的一個分支未被移除。要刪除它，使用："
+msgstr[0] "注意：refs/remotes/ 層級之外的一個分支未被移除。要刪除它，使用："
 
 #: builtin/remote.c
 #, c-format
@@ -13838,6 +13868,86 @@
 msgid "only one pattern can be given with -l"
 msgstr "只能為 -l 提供一個模式"
 
+#: builtin/replay.c
+msgid "need some commits to replay"
+msgstr "需要一些提交才能重放"
+
+#: builtin/replay.c
+msgid "--onto and --advance are incompatible"
+msgstr "--onto 和 --advance 不相容"
+
+#: builtin/replay.c
+msgid "all positive revisions given must be references"
+msgstr "提供的所有正向修訂集必須為引用"
+
+#: builtin/replay.c
+msgid "argument to --advance must be a reference"
+msgstr "傳入 --advance 的引數必須為引用"
+
+#: builtin/replay.c
+msgid ""
+"cannot advance target with multiple sources because ordering would be ill-"
+"defined"
+msgstr "無法用多個來源演進目的地，以免無法確定排序"
+
+#: builtin/replay.c
+msgid ""
+"cannot implicitly determine whether this is an --advance or --onto operation"
+msgstr "無法假設這是 --advance 還是 --onto 動作"
+
+#: builtin/replay.c
+msgid ""
+"cannot advance target with multiple source branches because ordering would "
+"be ill-defined"
+msgstr "無法由多個來源分支演進目的地，以免無法確定排序"
+
+#: builtin/replay.c
+msgid "cannot implicitly determine correct base for --onto"
+msgstr "無法假設 --onto 的正確基底"
+
+#: builtin/replay.c
+msgid ""
+"(EXPERIMENTAL!) git replay ([--contained] --onto <newbase> | --advance "
+"<branch>) <revision-range>..."
+msgstr ""
+"（實驗性功能！）git replay ([--contained] --onto <newbase> | --advance "
+"<branch>) <revision-range>..."
+
+#: builtin/replay.c
+msgid "make replay advance given branch"
+msgstr "在指定分支上進行重放演進"
+
+#: builtin/replay.c
+msgid "replay onto given commit"
+msgstr "重放到指定提交"
+
+#: builtin/replay.c
+msgid "advance all branches contained in revision-range"
+msgstr "演進所有包含在 revision-range 中的分支"
+
+#: builtin/replay.c
+msgid "option --onto or --advance is mandatory"
+msgstr "必須傳入 --onto 或 --advance 選項"
+
+#: builtin/replay.c
+#, c-format
+msgid ""
+"some rev walking options will be overridden as '%s' bit in 'struct rev_info' "
+"will be forced"
+msgstr "將覆寫部分修訂版遍歷選項，強制使用 “struct rev_info” 的 “%s” 位元"
+
+#: builtin/replay.c
+msgid "error preparing revisions"
+msgstr "無法準備修訂集"
+
+#: builtin/replay.c
+msgid "replaying down to root commit is not supported yet!"
+msgstr "尚不支援重放到根提交！"
+
+#: builtin/replay.c
+msgid "replaying merge commits is not supported yet!"
+msgstr "尚不支援重放合併提交！"
+
 #: builtin/rerere.c
 msgid ""
 "git rerere [clear | forget <pathspec>... | diff | status | remaining | gc]"
@@ -14100,18 +14210,6 @@
 msgid "unknown mode for --abbrev-ref: %s"
 msgstr "--abbrev-ref 的模式未知：%s"
 
-#: builtin/rev-parse.c revision.c
-msgid "--exclude-hidden cannot be used together with --branches"
-msgstr "--exclude-hidden 無法與 --branches 同時使用"
-
-#: builtin/rev-parse.c revision.c
-msgid "--exclude-hidden cannot be used together with --tags"
-msgstr "--exclude-hidden 無法與 --tags 同時使用"
-
-#: builtin/rev-parse.c revision.c
-msgid "--exclude-hidden cannot be used together with --remotes"
-msgstr "--exclude-hidden 無法與 --remotes 同時使用"
-
 #: builtin/rev-parse.c setup.c
 msgid "this operation must be run in a work tree"
 msgstr "該動作必須在一個工作區中執行"
@@ -14610,11 +14708,6 @@
 msgid "show refs from stdin that aren't in local repository"
 msgstr "顯示從標準輸入中讀入的不在本機版本庫中的引用"
 
-#: builtin/show-ref.c
-#, c-format
-msgid "only one of '%s', '%s' or '%s' can be given"
-msgstr "只能傳入 “%s”、“%s” 或 “%s”"
-
 #: builtin/sparse-checkout.c
 msgid ""
 "git sparse-checkout (init | list | set | add | reapply | disable | check-"
@@ -16389,14 +16482,14 @@
 #: builtin/worktree.c
 #, c-format
 msgid ""
-"If you meant to create a worktree containing a new orphan branch\n"
+"If you meant to create a worktree containing a new unborn branch\n"
 "(branch with no commits) for this repository, you can do so\n"
 "using the --orphan flag:\n"
 "\n"
 "    git worktree add --orphan -b %s %s\n"
 msgstr ""
 "如果您是想要在這個版本庫建立一個工作區，裡面包含一個\n"
-"孤立分支（即沒有提交的分支），可以使用 --orphan 達到\n"
+"未誕生分支（即沒有提交的分支），可以使用 --orphan 達到\n"
 "這個效果：\n"
 "\n"
 "    git worktree add --orphan -b %s %s\n"
@@ -16404,14 +16497,14 @@
 #: builtin/worktree.c
 #, c-format
 msgid ""
-"If you meant to create a worktree containing a new orphan branch\n"
+"If you meant to create a worktree containing a new unborn branch\n"
 "(branch with no commits) for this repository, you can do so\n"
 "using the --orphan flag:\n"
 "\n"
 "    git worktree add --orphan %s\n"
 msgstr ""
 "如果您是想要在這個版本庫建立一個工作區，裡面包含一個\n"
-"孤立分支（即沒有提交的分支），可以使用 --orphan 達到\n"
+"未誕生分支（即沒有提交的分支），可以使用 --orphan 達到\n"
 "這個效果：\n"
 "\n"
 "    git worktree add --orphan %s\n"
@@ -16483,6 +16576,11 @@
 
 #: builtin/worktree.c
 #, c-format
+msgid "could not find created worktree '%s'"
+msgstr "找不到建立的工作區「%s」"
+
+#: builtin/worktree.c
+#, c-format
 msgid "Preparing worktree (new branch '%s')"
 msgstr "準備工作區（新分支 '%s'）"
 
@@ -16526,11 +16624,6 @@
 "故停止。使用 “add -f” 先覆蓋或抓取遠端"
 
 #: builtin/worktree.c
-#, c-format
-msgid "'%s' and '%s' cannot be used together"
-msgstr "無法同時使用 “%s” 和 “%s”"
-
-#: builtin/worktree.c
 msgid "checkout <branch> even if already checked out in other worktree"
 msgstr "簽出 <分支>，即使已經被簽出到其它工作區"
 
@@ -16543,8 +16636,8 @@
 msgstr "建立或重設一個分支"
 
 #: builtin/worktree.c
-msgid "create unborn/orphaned branch"
-msgstr "建立尚無內容（孤立）的分支"
+msgid "create unborn branch"
+msgstr "建立未誕生分支"
 
 #: builtin/worktree.c
 msgid "populate the new working tree"
@@ -16573,12 +16666,8 @@
 
 #: builtin/worktree.c
 #, c-format
-msgid "options '%s', and '%s' cannot be used together"
-msgstr "無法同時使用 “%s” 和 “%s” 選項"
-
-#: builtin/worktree.c
-msgid "<commit-ish>"
-msgstr "<提交指示元>"
+msgid "option '%s' and commit-ish cannot be used together"
+msgstr "“%s” 選項和提交號不得同時使用"
 
 #: builtin/worktree.c
 msgid "added with --lock"
@@ -17367,6 +17456,10 @@
 msgstr "建立、列出、刪除物件取代引用"
 
 #: command-list.h
+msgid "EXPERIMENTAL: Replay commits on a new base, works with bare repos too"
+msgstr "實驗性功能：在新的基底重放提交，亦支援裸版本庫"
+
+#: command-list.h
 msgid "Generates a summary of pending changes"
 msgstr "生成待定更改的摘要"
 
@@ -17684,6 +17777,37 @@
 msgstr "提交圖形檔案太小"
 
 #: commit-graph.c
+msgid "commit-graph oid fanout chunk is wrong size"
+msgstr "提交圖形 OID 扇出區塊大小有誤"
+
+#: commit-graph.c
+msgid "commit-graph fanout values out of order"
+msgstr "提交圖形扇出的數值失序"
+
+#: commit-graph.c
+msgid "commit-graph OID lookup chunk is the wrong size"
+msgstr "提交圖形 OID 查詢區塊的大小有誤"
+
+#: commit-graph.c
+msgid "commit-graph commit data chunk is wrong size"
+msgstr "提交圖形的提交資料區塊大小有誤"
+
+#: commit-graph.c
+msgid "commit-graph generations chunk is wrong size"
+msgstr "提交圖形的世代區塊大小有誤"
+
+#: commit-graph.c
+msgid "commit-graph changed-path index chunk is too small"
+msgstr "提交圖形的更動路徑索引區塊過小"
+
+#: commit-graph.c
+#, c-format
+msgid ""
+"ignoring too-small changed-path chunk (%<PRIuMAX> < %<PRIuMAX>) in commit-"
+"graph file"
+msgstr "忽略提交圖形檔案中過小的更動路徑區塊 (%<PRIuMAX> < %<PRIuMAX>)"
+
+#: commit-graph.c
 #, c-format
 msgid "commit-graph signature %X does not match signature %X"
 msgstr "提交圖形簽名 %X 和簽名 %X 不符合"
@@ -17701,7 +17825,19 @@
 #: commit-graph.c
 #, c-format
 msgid "commit-graph file is too small to hold %u chunks"
-msgstr "commit-graph 檔案不夠放置 %u 個區塊"
+msgstr "提交圖形檔案不夠放置 %u 個區塊"
+
+#: commit-graph.c
+msgid "commit-graph required OID fanout chunk missing or corrupted"
+msgstr "提交圖形需要的 OID 扇出區塊遺失或損壞"
+
+#: commit-graph.c
+msgid "commit-graph required OID lookup chunk missing or corrupted"
+msgstr "提交圖形需要的 OID 查詢區塊遺失或損壞"
+
+#: commit-graph.c
+msgid "commit-graph required commit data chunk missing or corrupted"
+msgstr "提交圖形需要的提交資料區塊遺失或損壞"
 
 #: commit-graph.c
 msgid "commit-graph has no base graphs chunk"
@@ -17721,9 +17857,13 @@
 msgstr "基礎圖 (base graph) 中的提交數過多：%<PRIuMAX>"
 
 #: commit-graph.c
+msgid "commit-graph chain file too small"
+msgstr "提交圖形鏈檔案過小"
+
+#: commit-graph.c
 #, c-format
 msgid "invalid commit-graph chain: line '%s' not a hash"
-msgstr "無效的提交圖形鏈：行 '%s' 不是一個雜湊值"
+msgstr "無效的提交圖形鏈：「%s」列不是雜湊值"
 
 #: commit-graph.c
 msgid "unable to find all commit-graph files"
@@ -17747,6 +17887,10 @@
 msgstr "提交圖形的溢出世代資料過小"
 
 #: commit-graph.c
+msgid "commit-graph extra-edges pointer out of bounds"
+msgstr "提交圖形的延伸邊界指針超出範圍"
+
+#: commit-graph.c
 msgid "Loading known commits in commit graph"
 msgstr "正在載入提交圖中的已知提交"
 
@@ -19120,6 +19264,11 @@
 msgid "Unknown value for 'diff.submodule' config variable: '%s'"
 msgstr "設定變數 'diff.submodule' 未知的取值：'%s'"
 
+#: diff.c transport.c
+#, c-format
+msgid "unknown value for config '%s': %s"
+msgstr "設定 '%s' 的取值未知：%s"
+
 #: diff.c
 #, c-format
 msgid ""
@@ -19214,13 +19363,6 @@
 msgstr "--color-moved-ws 中的無效模式 '%s'"
 
 #: diff.c
-msgid ""
-"option diff-algorithm accepts \"myers\", \"minimal\", \"patience\" and "
-"\"histogram\""
-msgstr ""
-"diff-algorithm 選項有 \"myers\"、\"minimal\"、\"patience\" 和 \"histogram\""
-
-#: diff.c
 #, c-format
 msgid "invalid argument to %s"
 msgstr "%s 的參數無效"
@@ -19277,8 +19419,9 @@
 msgstr "只輸出 --stat 的最後一行"
 
 #: diff.c
-msgid "<param1,param2>..."
-msgstr "<參數1,參數2>..."
+#| msgid "<param1,param2>..."
+msgid "<param1>,<param2>..."
+msgstr "<param1>,<param2>..."
 
 #: diff.c
 msgid ""
@@ -19290,8 +19433,8 @@
 msgstr "和 --dirstat=cumulative 同義"
 
 #: diff.c
-msgid "synonym for --dirstat=files,param1,param2..."
-msgstr "是 --dirstat=files,param1,param2... 的同義詞"
+msgid "synonym for --dirstat=files,<param1>,<param2>..."
+msgstr "是 --dirstat=files,<param1>,<param2>... 的同義詞"
 
 #: diff.c
 msgid "warn if changes introduce conflict markers or whitespace errors"
@@ -19514,14 +19657,6 @@
 msgstr "使用 \"histogram diff\" 演算法生成差異"
 
 #: diff.c
-msgid "<algorithm>"
-msgstr "<演算法>"
-
-#: diff.c
-msgid "choose a diff algorithm"
-msgstr "選擇一個差異演算法"
-
-#: diff.c
 msgid "<text>"
 msgstr "<文字>"
 
@@ -20940,7 +21075,7 @@
 #. conflict in a submodule. The first argument is the submodule
 #. name, and the second argument is the abbreviated id of the
 #. commit that needs to be merged.  For example:
-#. - go to submodule (mysubmodule), and either merge commit abc1234"
+#.  - go to submodule (mysubmodule), and either merge commit abc1234"
 #.
 #: merge-ort.c
 #, c-format
@@ -21275,6 +21410,12 @@
 msgstr "多包索引的物件 ID fanout 大小錯誤"
 
 #: midx.c
+#, c-format
+msgid ""
+"oid fanout out of order: fanout[%d] = %<PRIx32> > %<PRIx32> = fanout[%d]"
+msgstr "物件 ID 扇出無序：fanout[%d] = %<PRIx32> > %<PRIx32> = fanout[%d]"
+
+#: midx.c
 msgid "multi-pack-index OID lookup chunk is the wrong size"
 msgstr "多包索引 OID 查詢區塊的大小有誤"
 
@@ -21333,6 +21474,15 @@
 msgstr "錯的 pack-int-id：%u（共有 %u 個包）"
 
 #: midx.c
+msgid "MIDX does not contain the BTMP chunk"
+msgstr "MIDX 未包含 BTMP 區塊"
+
+#: midx.c
+#, c-format
+msgid "could not load bitmapped pack %<PRIu32>"
+msgstr "無法載入位圖化 (bitmapped) 的封裝 %<PRIu32>"
+
+#: midx.c
 msgid "multi-pack-index stores a 64-bit offset, but off_t is too small"
 msgstr "多包索引儲存一個64位位移，但是 off_t 太小"
 
@@ -21440,12 +21590,6 @@
 msgstr "正在尋找引用的 packfile"
 
 #: midx.c
-#, c-format
-msgid ""
-"oid fanout out of order: fanout[%d] = %<PRIx32> > %<PRIx32> = fanout[%d]"
-msgstr "物件 ID 扇出無序：fanout[%d] = %<PRIx32> > %<PRIx32> = fanout[%d]"
-
-#: midx.c
 msgid "the midx contains no oid"
 msgstr "midx 沒有 oid"
 
@@ -21820,7 +21964,7 @@
 #. TRANSLATORS: This is a line of ambiguous commit
 #. object output. E.g.:
 #. *
-#. "deadbeef commit 2021-01-01 - Some Commit Message"
+#.    "deadbeef commit 2021-01-01 - Some Commit Message"
 #.
 #: object-name.c
 #, c-format
@@ -21830,7 +21974,7 @@
 #. TRANSLATORS: This is a line of ambiguous
 #. tag object output. E.g.:
 #. *
-#. "deadbeef tag 2022-01-01 - Some Tag Message"
+#.    "deadbeef tag 2022-01-01 - Some Tag Message"
 #. *
 #. The second argument is the YYYY-MM-DD found
 #. in the tag.
@@ -21847,7 +21991,7 @@
 #. tag object output where we couldn't parse
 #. the tag itself. E.g.:
 #. *
-#. "deadbeef [bad tag, could not parse it]"
+#.    "deadbeef [bad tag, could not parse it]"
 #.
 #: object-name.c
 #, c-format
@@ -22075,6 +22219,10 @@
 msgid "could not open pack %s"
 msgstr "無法開啟封包 %s"
 
+#: pack-bitmap.c t/helper/test-read-midx.c
+msgid "could not determine MIDX preferred pack"
+msgstr "無法確定 MIDX 偏好的封裝"
+
 #: pack-bitmap.c
 #, c-format
 msgid "preferred pack (%s) is invalid"
@@ -22100,6 +22248,11 @@
 
 #: pack-bitmap.c
 #, c-format
+msgid "unable to load pack: '%s', disabling pack-reuse"
+msgstr "無法載入「%s」封裝，停用 pack-reuse"
+
+#: pack-bitmap.c
+#, c-format
 msgid "object '%s' not found in type bitmaps"
 msgstr "在類型位圖中，找不到「%s」物件"
 
@@ -22213,6 +22366,10 @@
 msgid "multi-pack-index reverse-index chunk is the wrong size"
 msgstr "多包索引的反向索引區塊大小有誤"
 
+#: pack-revindex.c
+msgid "could not determine preferred pack"
+msgstr "無法確定偏好封裝"
+
 #: pack-write.c
 msgid "cannot both write and verify reverse index"
 msgstr "無法同時寫入和驗證倒排索引"
@@ -22293,11 +22450,6 @@
 
 #: parse-options.c
 #, c-format
-msgid "%s is incompatible with %s"
-msgstr "%s 與 %s 不相容"
-
-#: parse-options.c
-#, c-format
 msgid "ambiguous option: %s (could be --%s%s or --%s%s)"
 msgstr "有歧義的選項：%s（可以是 --%s%s 或 --%s%s）"
 
@@ -22687,11 +22839,6 @@
 
 #: read-cache.c
 #, c-format
-msgid "unable to stat '%s'"
-msgstr "無法對 %s 執行 stat"
-
-#: read-cache.c
-#, c-format
 msgid "'%s' appears as both a file and as a directory"
 msgstr "'%s' 看起來既是檔案又是目錄"
 
@@ -23364,17 +23511,12 @@
 msgid "cannot process '%s' and '%s' at the same time"
 msgstr "無法同時處理 '%s' 和 '%s'"
 
-#: refs/files-backend.c
-#, c-format
-msgid "could not remove reference %s"
-msgstr "無法刪除引用 %s"
-
-#: refs/files-backend.c refs/packed-backend.c
+#: refs.c
 #, c-format
 msgid "could not delete reference %s: %s"
 msgstr "無法刪除引用 %s：%s"
 
-#: refs/files-backend.c refs/packed-backend.c
+#: refs.c
 #, c-format
 msgid "could not delete references: %s"
 msgstr "無法刪除引用：%s"
@@ -24532,7 +24674,7 @@
 msgid "corrupt author: missing date information"
 msgstr "作者資訊損壞：缺少日期資訊"
 
-#: sequencer.c t/helper/test-fast-rebase.c
+#: sequencer.c
 #, c-format
 msgid "could not update %s"
 msgstr "不能更新 %s"
@@ -25024,6 +25166,10 @@
 msgstr "已有自動貯存；建立新貯存項目。"
 
 #: sequencer.c
+msgid "autostash reference is a symref"
+msgstr "autostash 引用是符號引用"
+
+#: sequencer.c
 msgid "could not detach HEAD"
 msgstr "不能分離開頭指標"
 
@@ -25397,6 +25543,11 @@
 
 #: setup.c
 #, c-format
+msgid "re-init: ignored --initial-branch=%s"
+msgstr "re-init: 忽略 --initial-branch=%s"
+
+#: setup.c
+#, c-format
 msgid "unable to handle file type %d"
 msgstr "不能處理 %d 類型的檔案"
 
@@ -25410,14 +25561,14 @@
 msgstr "嘗試以不同的雜湊值重新初始化版本庫"
 
 #: setup.c
-#, c-format
-msgid "%s already exists"
-msgstr "%s 已經存在"
+msgid ""
+"attempt to reinitialize repository with different reference storage format"
+msgstr "嘗試以不同的引用儲存格式重新初始化版本庫"
 
 #: setup.c
 #, c-format
-msgid "re-init: ignored --initial-branch=%s"
-msgstr "re-init: 忽略 --initial-branch=%s"
+msgid "%s already exists"
+msgstr "%s 已經存在"
 
 #: setup.c
 #, c-format
@@ -25733,14 +25884,6 @@
 msgid "number of entries in the cache tree to invalidate (default 0)"
 msgstr "在快取樹狀物件中，要使失效的項目數量（預設值為 0）"
 
-#: t/helper/test-fast-rebase.c
-msgid "unhandled options"
-msgstr "未處理選項"
-
-#: t/helper/test-fast-rebase.c
-msgid "error preparing revisions"
-msgstr "準備修訂版本時發生錯誤"
-
 #: t/helper/test-reach.c
 #, c-format
 msgid "commit %s is not marked reachable"
@@ -25934,10 +26077,6 @@
 msgid "invalid remote service path"
 msgstr "無效的遠端服務路徑"
 
-#: transport-helper.c transport.c
-msgid "operation not supported by protocol"
-msgstr "協定不支援該動作"
-
 #: transport-helper.c
 #, c-format
 msgid "can't connect to subservice %s"
@@ -26103,11 +26242,6 @@
 
 #: transport.c
 #, c-format
-msgid "unknown value for config '%s': %s"
-msgstr "設定 '%s' 的取值未知：%s"
-
-#: transport.c
-#, c-format
 msgid "transport '%s' not allowed"
 msgstr "傳輸 '%s' 不允許"
 
@@ -26165,6 +26299,10 @@
 msgid "could not retrieve server-advertised bundle-uri list"
 msgstr "無法取得伺服器公佈的 bundle-uri 清單"
 
+#: transport.c
+msgid "operation not supported by protocol"
+msgstr "協定不支援該動作"
+
 #: tree-walk.c
 msgid "too-short tree object"
 msgstr "太短的樹狀物件"
@@ -27193,6 +27331,11 @@
 msgid "cannot %s: Your index contains uncommitted changes."
 msgstr "不能%s：您的索引中包含未提交的變更。"
 
+#: xdiff-interface.c
+#, c-format
+msgid "unknown style '%s' given for '%s'"
+msgstr "給予「%2$s」的「%1$s」樣式未知"
+
 #: git-merge-octopus.sh git-merge-resolve.sh
 msgid ""
 "Error: Your local changes to the following files would be overwritten by "
@@ -27649,3 +27792,55 @@
 #, perl-format
 msgid "Do you really want to send %s? [y|N]: "
 msgstr "您真的要傳送 %s？[y|N]： "
+
+#~ msgid "-x and -X cannot be used together"
+#~ msgstr "-x 和 -X 不能同時使用"
+
+#~ msgid ""
+#~ "--bundle-uri is incompatible with --depth, --shallow-since, and --shallow-"
+#~ "exclude"
+#~ msgstr ""
+#~ "--bundle-uri 與 --depth、--shallow-since 和 --shallow-exclude 不相容"
+
+#~ msgid "--merge-base is incompatible with --stdin"
+#~ msgstr "--merge-base 與 --stdin 不相容"
+
+#~ msgid ""
+#~ "apply options are incompatible with rebase.autoSquash.  Consider adding --"
+#~ "no-autosquash"
+#~ msgstr "apply 選項與 rebase.autoSquash 不相容。請考慮加上 --no-autosquash"
+
+#~ msgid "--exclude-hidden cannot be used together with --branches"
+#~ msgstr "--exclude-hidden 無法與 --branches 同時使用"
+
+#~ msgid "--exclude-hidden cannot be used together with --tags"
+#~ msgstr "--exclude-hidden 無法與 --tags 同時使用"
+
+#~ msgid "--exclude-hidden cannot be used together with --remotes"
+#~ msgstr "--exclude-hidden 無法與 --remotes 同時使用"
+
+#, c-format
+#~ msgid "only one of '%s', '%s' or '%s' can be given"
+#~ msgstr "只能傳入 “%s”、“%s” 或 “%s”"
+
+#, c-format
+#~ msgid "'%s' and '%s' cannot be used together"
+#~ msgstr "無法同時使用 “%s” 和 “%s”"
+
+#, c-format
+#~ msgid "options '%s', and '%s' cannot be used together"
+#~ msgstr "無法同時使用 “%s” 和 “%s” 選項"
+
+#~ msgid "<commit-ish>"
+#~ msgstr "<提交指示元>"
+
+#, c-format
+#~ msgid "%s is incompatible with %s"
+#~ msgstr "%s 與 %s 不相容"
+
+#, c-format
+#~ msgid "could not remove reference %s"
+#~ msgstr "無法刪除引用 %s"
+
+#~ msgid "unhandled options"
+#~ msgstr "未處理選項"
diff --git a/reachable.c b/reachable.c
index f29b06a..3b85add 100644
--- a/reachable.c
+++ b/reachable.c
@@ -17,6 +17,7 @@
 #include "pack-mtimes.h"
 #include "config.h"
 #include "run-command.h"
+#include "sequencer.h"
 
 struct connectivity_progress {
 	struct progress *progress;
@@ -30,6 +31,52 @@
 		display_progress(cp->progress, cp->count);
 }
 
+static void add_one_file(const char *path, struct rev_info *revs)
+{
+	struct strbuf buf = STRBUF_INIT;
+	struct object_id oid;
+	struct object *object;
+
+	if (!read_oneliner(&buf, path, READ_ONELINER_SKIP_IF_EMPTY)) {
+		strbuf_release(&buf);
+		return;
+	}
+	strbuf_trim(&buf);
+	if (!get_oid_hex(buf.buf, &oid)) {
+		object = parse_object_or_die(&oid, buf.buf);
+		add_pending_object(revs, object, "");
+	}
+	strbuf_release(&buf);
+}
+
+/* Mark objects recorded in rebase state files as reachable. */
+static void add_rebase_files(struct rev_info *revs)
+{
+	struct strbuf buf = STRBUF_INIT;
+	size_t len;
+	const char *path[] = {
+		"rebase-apply/autostash",
+		"rebase-apply/orig-head",
+		"rebase-merge/autostash",
+		"rebase-merge/orig-head",
+	};
+	struct worktree **worktrees = get_worktrees();
+
+	for (struct worktree **wt = worktrees; *wt; wt++) {
+		strbuf_reset(&buf);
+		strbuf_addstr(&buf, get_worktree_git_dir(*wt));
+		strbuf_complete(&buf, '/');
+		len = buf.len;
+		for (size_t i = 0; i < ARRAY_SIZE(path); i++) {
+			strbuf_setlen(&buf, len);
+			strbuf_addstr(&buf, path[i]);
+			add_one_file(buf.buf, revs);
+		}
+	}
+	strbuf_release(&buf);
+	free_worktrees(worktrees);
+}
+
 static int add_one_ref(const char *path, const struct object_id *oid,
 		       int flag, void *cb_data)
 {
@@ -322,6 +369,9 @@
 	head_ref(add_one_ref, revs);
 	other_head_refs(add_one_ref, revs);
 
+	/* rebase autostash and orig-head */
+	add_rebase_files(revs);
+
 	/* Add all reflog info */
 	if (mark_reflog)
 		add_reflogs_to_pending(revs, 0);
diff --git a/read-cache-ll.h b/read-cache-ll.h
index 9a1a7ed..2a50a78 100644
--- a/read-cache-ll.h
+++ b/read-cache-ll.h
@@ -436,6 +436,14 @@
 
 void fill_stat_cache_info(struct index_state *istate, struct cache_entry *ce, struct stat *st);
 
+/*
+ * Fill members of st by members of sd enough to convince match_stat()
+ * to consider that they match.  It should be usable as a replacement
+ * for lstat() for a tracked path that is known to be up-to-date via
+ * some out-of-line means (like fsmonitor).
+ */
+int fake_lstat(const struct cache_entry *ce, struct stat *st);
+
 #define REFRESH_REALLY                   (1 << 0) /* ignore_valid */
 #define REFRESH_UNMERGED                 (1 << 1) /* allow unmerged */
 #define REFRESH_QUIET                    (1 << 2) /* be quiet about it */
diff --git a/read-cache.c b/read-cache.c
index 08970ca..f546cf7 100644
--- a/read-cache.c
+++ b/read-cache.c
@@ -195,6 +195,33 @@
 	}
 }
 
+static unsigned int st_mode_from_ce(const struct cache_entry *ce)
+{
+	extern int trust_executable_bit, has_symlinks;
+
+	switch (ce->ce_mode & S_IFMT) {
+	case S_IFLNK:
+		return has_symlinks ? S_IFLNK : (S_IFREG | 0644);
+	case S_IFREG:
+		return (ce->ce_mode & (trust_executable_bit ? 0755 : 0644)) | S_IFREG;
+	case S_IFGITLINK:
+		return S_IFDIR | 0755;
+	case S_IFDIR:
+		return ce->ce_mode;
+	default:
+		BUG("unsupported ce_mode: %o", ce->ce_mode);
+	}
+}
+
+int fake_lstat(const struct cache_entry *ce, struct stat *st)
+{
+	fake_lstat_data(&ce->ce_stat_data, st);
+	st->st_mode = st_mode_from_ce(ce);
+
+	/* always succeed as lstat() replacement */
+	return 0;
+}
+
 static int ce_compare_data(struct index_state *istate,
 			   const struct cache_entry *ce,
 			   struct stat *st)
diff --git a/ref-filter.c b/ref-filter.c
index 0ac3fca..be14b56 100644
--- a/ref-filter.c
+++ b/ref-filter.c
@@ -1611,6 +1611,12 @@
 	if (formatp) {
 		formatp++;
 		parse_date_format(formatp, &date_mode);
+
+		/*
+		 * If this is a sort field and a format was specified, we'll
+		 * want to compare formatted date by string value.
+		 */
+		v->atom->type = FIELD_STR;
 	}
 
 	if (!eoemail)
@@ -2505,17 +2511,12 @@
 		return 0;
 
 	/*
-	 * If it is a tag object, see if we use a value that derefs
-	 * the object, and if we do grab the object it refers to.
+	 * If it is a tag object, see if we use the peeled value. If we do,
+	 * grab the peeled OID.
 	 */
-	oi_deref.oid = *get_tagged_oid((struct tag *)obj);
+	if (need_tagged && peel_iterated_oid(&obj->oid, &oi_deref.oid))
+		die("bad tag");
 
-	/*
-	 * NEEDSWORK: This derefs tag only once, which
-	 * is good to deal with chains of trust, but
-	 * is not consistent with what deref_tag() does
-	 * which peels the onion to the core.
-	 */
 	return get_object(ref, 1, &obj, &oi_deref, err);
 }
 
@@ -2713,15 +2714,18 @@
 	return ref;
 }
 
+static void ref_array_append(struct ref_array *array, struct ref_array_item *ref)
+{
+	ALLOC_GROW(array->items, array->nr + 1, array->alloc);
+	array->items[array->nr++] = ref;
+}
+
 struct ref_array_item *ref_array_push(struct ref_array *array,
 				      const char *refname,
 				      const struct object_id *oid)
 {
 	struct ref_array_item *ref = new_ref_array_item(refname, oid);
-
-	ALLOC_GROW(array->items, array->nr + 1, array->alloc);
-	array->items[array->nr++] = ref;
-
+	ref_array_append(array, ref);
 	return ref;
 }
 
@@ -2758,48 +2762,36 @@
 	return ref_kind_from_refname(refname);
 }
 
-struct ref_filter_cbdata {
-	struct ref_array *array;
-	struct ref_filter *filter;
-	struct contains_cache contains_cache;
-	struct contains_cache no_contains_cache;
-};
-
-/*
- * A call-back given to for_each_ref().  Filter refs and keep them for
- * later object processing.
- */
-static int ref_filter_handler(const char *refname, const struct object_id *oid, int flag, void *cb_data)
+static struct ref_array_item *apply_ref_filter(const char *refname, const struct object_id *oid,
+			    int flag, struct ref_filter *filter)
 {
-	struct ref_filter_cbdata *ref_cbdata = cb_data;
-	struct ref_filter *filter = ref_cbdata->filter;
 	struct ref_array_item *ref;
 	struct commit *commit = NULL;
 	unsigned int kind;
 
 	if (flag & REF_BAD_NAME) {
 		warning(_("ignoring ref with broken name %s"), refname);
-		return 0;
+		return NULL;
 	}
 
 	if (flag & REF_ISBROKEN) {
 		warning(_("ignoring broken ref %s"), refname);
-		return 0;
+		return NULL;
 	}
 
 	/* Obtain the current ref kind from filter_ref_kind() and ignore unwanted refs. */
 	kind = filter_ref_kind(filter, refname);
 	if (!(kind & filter->kind))
-		return 0;
+		return NULL;
 
 	if (!filter_pattern_match(filter, refname))
-		return 0;
+		return NULL;
 
 	if (filter_exclude_match(filter, refname))
-		return 0;
+		return NULL;
 
 	if (filter->points_at.nr && !match_points_at(&filter->points_at, oid, refname))
-		return 0;
+		return NULL;
 
 	/*
 	 * A merge filter is applied on refs pointing to commits. Hence
@@ -2810,15 +2802,15 @@
 	    filter->with_commit || filter->no_commit || filter->verbose) {
 		commit = lookup_commit_reference_gently(the_repository, oid, 1);
 		if (!commit)
-			return 0;
+			return NULL;
 		/* We perform the filtering for the '--contains' option... */
 		if (filter->with_commit &&
-		    !commit_contains(filter, commit, filter->with_commit, &ref_cbdata->contains_cache))
-			return 0;
+		    !commit_contains(filter, commit, filter->with_commit, &filter->internal.contains_cache))
+			return NULL;
 		/* ...or for the `--no-contains' option */
 		if (filter->no_commit &&
-		    commit_contains(filter, commit, filter->no_commit, &ref_cbdata->no_contains_cache))
-			return 0;
+		    commit_contains(filter, commit, filter->no_commit, &filter->internal.no_contains_cache))
+			return NULL;
 	}
 
 	/*
@@ -2826,11 +2818,32 @@
 	 * to do its job and the resulting list may yet to be pruned
 	 * by maxcount logic.
 	 */
-	ref = ref_array_push(ref_cbdata->array, refname, oid);
+	ref = new_ref_array_item(refname, oid);
 	ref->commit = commit;
 	ref->flag = flag;
 	ref->kind = kind;
 
+	return ref;
+}
+
+struct ref_filter_cbdata {
+	struct ref_array *array;
+	struct ref_filter *filter;
+};
+
+/*
+ * A call-back given to for_each_ref().  Filter refs and keep them for
+ * later object processing.
+ */
+static int filter_one(const char *refname, const struct object_id *oid, int flag, void *cb_data)
+{
+	struct ref_filter_cbdata *ref_cbdata = cb_data;
+	struct ref_array_item *ref;
+
+	ref = apply_ref_filter(refname, oid, flag, ref_cbdata->filter);
+	if (ref)
+		ref_array_append(ref_cbdata->array, ref);
+
 	return 0;
 }
 
@@ -2848,6 +2861,49 @@
 	free(item);
 }
 
+struct ref_filter_and_format_cbdata {
+	struct ref_filter *filter;
+	struct ref_format *format;
+
+	struct ref_filter_and_format_internal {
+		int count;
+	} internal;
+};
+
+static int filter_and_format_one(const char *refname, const struct object_id *oid, int flag, void *cb_data)
+{
+	struct ref_filter_and_format_cbdata *ref_cbdata = cb_data;
+	struct ref_array_item *ref;
+	struct strbuf output = STRBUF_INIT, err = STRBUF_INIT;
+
+	ref = apply_ref_filter(refname, oid, flag, ref_cbdata->filter);
+	if (!ref)
+		return 0;
+
+	if (format_ref_array_item(ref, ref_cbdata->format, &output, &err))
+		die("%s", err.buf);
+
+	if (output.len || !ref_cbdata->format->array_opts.omit_empty) {
+		fwrite(output.buf, 1, output.len, stdout);
+		putchar('\n');
+	}
+
+	strbuf_release(&output);
+	strbuf_release(&err);
+	free_array_item(ref);
+
+	/*
+	 * Increment the running count of refs that match the filter. If
+	 * max_count is set and we've reached the max, stop the ref
+	 * iteration by returning a nonzero value.
+	 */
+	if (ref_cbdata->format->array_opts.max_count &&
+	    ++ref_cbdata->internal.count >= ref_cbdata->format->array_opts.max_count)
+		return 1;
+
+	return 0;
+}
+
 /* Free all memory allocated for ref_array */
 void ref_array_clear(struct ref_array *array)
 {
@@ -2966,6 +3022,43 @@
 	free(commits);
 }
 
+static int do_filter_refs(struct ref_filter *filter, unsigned int type, each_ref_fn fn, void *cb_data)
+{
+	int ret = 0;
+
+	filter->kind = type & FILTER_REFS_KIND_MASK;
+
+	init_contains_cache(&filter->internal.contains_cache);
+	init_contains_cache(&filter->internal.no_contains_cache);
+
+	/*  Simple per-ref filtering */
+	if (!filter->kind)
+		die("filter_refs: invalid type");
+	else {
+		/*
+		 * For common cases where we need only branches or remotes or tags,
+		 * we only iterate through those refs. If a mix of refs is needed,
+		 * we iterate over all refs and filter out required refs with the help
+		 * of filter_ref_kind().
+		 */
+		if (filter->kind == FILTER_REFS_BRANCHES)
+			ret = for_each_fullref_in("refs/heads/", fn, cb_data);
+		else if (filter->kind == FILTER_REFS_REMOTES)
+			ret = for_each_fullref_in("refs/remotes/", fn, cb_data);
+		else if (filter->kind == FILTER_REFS_TAGS)
+			ret = for_each_fullref_in("refs/tags/", fn, cb_data);
+		else if (filter->kind & FILTER_REFS_ALL)
+			ret = for_each_fullref_in_pattern(filter, fn, cb_data);
+		if (!ret && (filter->kind & FILTER_REFS_DETACHED_HEAD))
+			head_ref(fn, cb_data);
+	}
+
+	clear_contains_cache(&filter->internal.contains_cache);
+	clear_contains_cache(&filter->internal.no_contains_cache);
+
+	return ret;
+}
+
 /*
  * API for filtering a set of refs. Based on the type of refs the user
  * has requested, we iterate through those refs and apply filters
@@ -2981,38 +3074,10 @@
 	ref_cbdata.array = array;
 	ref_cbdata.filter = filter;
 
-	filter->kind = type & FILTER_REFS_KIND_MASK;
-
 	save_commit_buffer_orig = save_commit_buffer;
 	save_commit_buffer = 0;
 
-	init_contains_cache(&ref_cbdata.contains_cache);
-	init_contains_cache(&ref_cbdata.no_contains_cache);
-
-	/*  Simple per-ref filtering */
-	if (!filter->kind)
-		die("filter_refs: invalid type");
-	else {
-		/*
-		 * For common cases where we need only branches or remotes or tags,
-		 * we only iterate through those refs. If a mix of refs is needed,
-		 * we iterate over all refs and filter out required refs with the help
-		 * of filter_ref_kind().
-		 */
-		if (filter->kind == FILTER_REFS_BRANCHES)
-			ret = for_each_fullref_in("refs/heads/", ref_filter_handler, &ref_cbdata);
-		else if (filter->kind == FILTER_REFS_REMOTES)
-			ret = for_each_fullref_in("refs/remotes/", ref_filter_handler, &ref_cbdata);
-		else if (filter->kind == FILTER_REFS_TAGS)
-			ret = for_each_fullref_in("refs/tags/", ref_filter_handler, &ref_cbdata);
-		else if (filter->kind & FILTER_REFS_ALL)
-			ret = for_each_fullref_in_pattern(filter, ref_filter_handler, &ref_cbdata);
-		if (!ret && (filter->kind & FILTER_REFS_DETACHED_HEAD))
-			head_ref(ref_filter_handler, &ref_cbdata);
-	}
-
-	clear_contains_cache(&ref_cbdata.contains_cache);
-	clear_contains_cache(&ref_cbdata.no_contains_cache);
+	ret = do_filter_refs(filter, type, filter_one, &ref_cbdata);
 
 	/*  Filters that need revision walking */
 	reach_filter(array, &filter->reachable_from, INCLUDE_REACHED);
@@ -3022,6 +3087,51 @@
 	return ret;
 }
 
+static inline int can_do_iterative_format(struct ref_filter *filter,
+					  struct ref_sorting *sorting,
+					  struct ref_format *format)
+{
+	/*
+	 * Filtering & formatting results within a single ref iteration
+	 * callback is not compatible with options that require
+	 * post-processing a filtered ref_array. These include:
+	 * - filtering on reachability
+	 * - sorting the filtered results
+	 * - including ahead-behind information in the formatted output
+	 */
+	return !(filter->reachable_from ||
+		 filter->unreachable_from ||
+		 sorting ||
+		 format->bases.nr);
+}
+
+void filter_and_format_refs(struct ref_filter *filter, unsigned int type,
+			    struct ref_sorting *sorting,
+			    struct ref_format *format)
+{
+	if (can_do_iterative_format(filter, sorting, format)) {
+		int save_commit_buffer_orig;
+		struct ref_filter_and_format_cbdata ref_cbdata = {
+			.filter = filter,
+			.format = format,
+		};
+
+		save_commit_buffer_orig = save_commit_buffer;
+		save_commit_buffer = 0;
+
+		do_filter_refs(filter, type, filter_and_format_one, &ref_cbdata);
+
+		save_commit_buffer = save_commit_buffer_orig;
+	} else {
+		struct ref_array array = { 0 };
+		filter_refs(&array, filter, type);
+		filter_ahead_behind(the_repository, format, &array);
+		ref_array_sort(sorting, &array);
+		print_formatted_ref_array(&array, format);
+		ref_array_clear(&array);
+	}
+}
+
 static int compare_detached_head(struct ref_array_item *a, struct ref_array_item *b)
 {
 	if (!(a->kind ^ b->kind))
@@ -3139,7 +3249,8 @@
 
 void ref_array_sort(struct ref_sorting *sorting, struct ref_array *array)
 {
-	QSORT_S(array->items, array->nr, compare_refs, sorting);
+	if (sorting)
+		QSORT_S(array->items, array->nr, compare_refs, sorting);
 }
 
 static void append_literal(const char *cp, const char *ep, struct ref_formatting_state *state)
@@ -3210,6 +3321,29 @@
 	return 0;
 }
 
+void print_formatted_ref_array(struct ref_array *array, struct ref_format *format)
+{
+	int total;
+	struct strbuf output = STRBUF_INIT, err = STRBUF_INIT;
+
+	total = format->array_opts.max_count;
+	if (!total || array->nr < total)
+		total = array->nr;
+	for (int i = 0; i < total; i++) {
+		strbuf_reset(&err);
+		strbuf_reset(&output);
+		if (format_ref_array_item(array->items[i], format, &output, &err))
+			die("%s", err.buf);
+		if (output.len || !format->array_opts.omit_empty) {
+			fwrite(output.buf, 1, output.len, stdout);
+			putchar('\n');
+		}
+	}
+
+	strbuf_release(&err);
+	strbuf_release(&output);
+}
+
 void pretty_print_ref(const char *name, const struct object_id *oid,
 		      struct ref_format *format)
 {
@@ -3245,18 +3379,6 @@
 	return res;
 }
 
-/*  If no sorting option is given, use refname to sort as default */
-static struct ref_sorting *ref_default_sorting(void)
-{
-	static const char cstr_name[] = "refname";
-
-	struct ref_sorting *sorting = xcalloc(1, sizeof(*sorting));
-
-	sorting->next = NULL;
-	sorting->atom = parse_sorting_atom(cstr_name);
-	return sorting;
-}
-
 static void parse_ref_sorting(struct ref_sorting **sorting_tail, const char *arg)
 {
 	struct ref_sorting *s;
@@ -3280,9 +3402,7 @@
 	struct string_list_item *item;
 	struct ref_sorting *sorting = NULL, **tail = &sorting;
 
-	if (!options->nr) {
-		sorting = ref_default_sorting();
-	} else {
+	if (options->nr) {
 		for_each_string_list_item(item, options)
 			parse_ref_sorting(tail, item->string);
 	}
diff --git a/ref-filter.h b/ref-filter.h
index 4ecb6ab..07cd6f6 100644
--- a/ref-filter.h
+++ b/ref-filter.h
@@ -6,6 +6,7 @@
 #include "commit.h"
 #include "string-list.h"
 #include "strvec.h"
+#include "commit-reach.h"
 
 /* Quoting styles */
 #define QUOTE_NONE 0
@@ -74,6 +75,11 @@
 		lines;
 	int abbrev,
 		verbose;
+
+	struct {
+		struct contains_cache contains_cache;
+		struct contains_cache no_contains_cache;
+	} internal;
 };
 
 struct ref_format {
@@ -91,6 +97,11 @@
 
 	/* List of bases for ahead-behind counts. */
 	struct string_list bases;
+
+	struct {
+		int max_count;
+		int omit_empty;
+	} array_opts;
 };
 
 #define REF_FILTER_INIT { \
@@ -125,6 +136,14 @@
  * filtered refs in the ref_array structure.
  */
 int filter_refs(struct ref_array *array, struct ref_filter *filter, unsigned int type);
+/*
+ * Filter refs using the given ref_filter and type, sort the contents
+ * according to the given ref_sorting, format the filtered refs with the
+ * given ref_format, and print them to stdout.
+ */
+void filter_and_format_refs(struct ref_filter *filter, unsigned int type,
+			    struct ref_sorting *sorting,
+			    struct ref_format *format);
 /*  Clear all memory allocated to ref_array */
 void ref_array_clear(struct ref_array *array);
 /*  Used to verify if the given format is correct and to parse out the used atoms */
@@ -150,6 +169,12 @@
 void setup_ref_filter_porcelain_msg(void);
 
 /*
+ * Print up to maxcount ref_array elements to stdout using the given
+ * ref_format.
+ */
+void print_formatted_ref_array(struct ref_array *array, struct ref_format *format);
+
+/*
  * Print a single ref, outside of any ref-filter. Note that the
  * name must be a fully qualified refname.
  */
diff --git a/refs.c b/refs.c
index fcae5dd..c633abf 100644
--- a/refs.c
+++ b/refs.c
@@ -33,17 +33,33 @@
 /*
  * List of all available backends
  */
-static struct ref_storage_be *refs_backends = &refs_be_files;
+static const struct ref_storage_be *refs_backends[] = {
+	[REF_STORAGE_FORMAT_FILES] = &refs_be_files,
+};
 
-static struct ref_storage_be *find_ref_storage_backend(const char *name)
+static const struct ref_storage_be *find_ref_storage_backend(unsigned int ref_storage_format)
 {
-	struct ref_storage_be *be;
-	for (be = refs_backends; be; be = be->next)
-		if (!strcmp(be->name, name))
-			return be;
+	if (ref_storage_format < ARRAY_SIZE(refs_backends))
+		return refs_backends[ref_storage_format];
 	return NULL;
 }
 
+unsigned int ref_storage_format_by_name(const char *name)
+{
+	for (unsigned int i = 0; i < ARRAY_SIZE(refs_backends); i++)
+		if (refs_backends[i] && !strcmp(refs_backends[i]->name, name))
+			return i;
+	return REF_STORAGE_FORMAT_UNKNOWN;
+}
+
+const char *ref_storage_format_to_name(unsigned int ref_storage_format)
+{
+	const struct ref_storage_be *be = find_ref_storage_backend(ref_storage_format);
+	if (!be)
+		return "unknown";
+	return be->name;
+}
+
 /*
  * How to handle various characters in refnames:
  * 0: An acceptable character for refs
@@ -1806,8 +1822,10 @@
 	int result = -1;
 	strbuf_addf(&full_path, "%s/%s", ref_store->gitdir, refname);
 
-	if (strbuf_read_file(&content, full_path.buf, 0) < 0)
+	if (strbuf_read_file(&content, full_path.buf, 0) < 0) {
+		*failure_errno = errno;
 		goto done;
+	}
 
 	result = parse_loose_ref_contents(content.buf, oid, referent, type,
 					  failure_errno);
@@ -1818,15 +1836,45 @@
 	return result;
 }
 
+static int is_special_ref(const char *refname)
+{
+	/*
+	 * Special references are refs that have different semantics compared
+	 * to "normal" refs. These refs can thus not be stored in the ref
+	 * backend, but must always be accessed via the filesystem. The
+	 * following refs are special:
+	 *
+	 * - FETCH_HEAD may contain multiple object IDs, and each one of them
+	 *   carries additional metadata like where it came from.
+	 *
+	 * - MERGE_HEAD may contain multiple object IDs when merging multiple
+	 *   heads.
+	 *
+	 * Reading, writing or deleting references must consistently go either
+	 * through the filesystem (special refs) or through the reference
+	 * backend (normal ones).
+	 */
+	static const char * const special_refs[] = {
+		"FETCH_HEAD",
+		"MERGE_HEAD",
+	};
+	size_t i;
+
+	for (i = 0; i < ARRAY_SIZE(special_refs); i++)
+		if (!strcmp(refname, special_refs[i]))
+			return 1;
+
+	return 0;
+}
+
 int refs_read_raw_ref(struct ref_store *ref_store, const char *refname,
 		      struct object_id *oid, struct strbuf *referent,
 		      unsigned int *type, int *failure_errno)
 {
 	assert(failure_errno);
-	if (!strcmp(refname, "FETCH_HEAD") || !strcmp(refname, "MERGE_HEAD")) {
+	if (is_special_ref(refname))
 		return refs_read_special_head(ref_store, refname, oid, referent,
 					      type, failure_errno);
-	}
 
 	return ref_store->be->read_raw_ref(ref_store, refname, oid, referent,
 					   type, failure_errno);
@@ -1928,11 +1976,9 @@
 }
 
 /* backend functions */
-int refs_init_db(struct strbuf *err)
+int refs_init_db(struct ref_store *refs, int flags, struct strbuf *err)
 {
-	struct ref_store *refs = get_main_ref_store(the_repository);
-
-	return refs->be->init_db(refs, err);
+	return refs->be->init_db(refs, flags, err);
 }
 
 const char *resolve_ref_unsafe(const char *refname, int resolve_flags,
@@ -2029,12 +2075,12 @@
 					const char *gitdir,
 					unsigned int flags)
 {
-	const char *be_name = "files";
-	struct ref_storage_be *be = find_ref_storage_backend(be_name);
+	const struct ref_storage_be *be;
 	struct ref_store *refs;
 
+	be = find_ref_storage_backend(repo->ref_storage_format);
 	if (!be)
-		BUG("reference backend %s is unknown", be_name);
+		BUG("reference backend is unknown");
 
 	refs = be->init(repo, gitdir, flags);
 	return refs;
@@ -2599,13 +2645,55 @@
 int refs_delete_refs(struct ref_store *refs, const char *logmsg,
 		     struct string_list *refnames, unsigned int flags)
 {
+	struct ref_transaction *transaction;
+	struct strbuf err = STRBUF_INIT;
+	struct string_list_item *item;
+	int ret = 0, failures = 0;
 	char *msg;
-	int retval;
+
+	if (!refnames->nr)
+		return 0;
 
 	msg = normalize_reflog_message(logmsg);
-	retval = refs->be->delete_refs(refs, msg, refnames, flags);
+
+	/*
+	 * Since we don't check the references' old_oids, the
+	 * individual updates can't fail, so we can pack all of the
+	 * updates into a single transaction.
+	 */
+	transaction = ref_store_transaction_begin(refs, &err);
+	if (!transaction) {
+		ret = error("%s", err.buf);
+		goto out;
+	}
+
+	for_each_string_list_item(item, refnames) {
+		ret = ref_transaction_delete(transaction, item->string,
+					     NULL, flags, msg, &err);
+		if (ret) {
+			warning(_("could not delete reference %s: %s"),
+				item->string, err.buf);
+			strbuf_reset(&err);
+			failures = 1;
+		}
+	}
+
+	ret = ref_transaction_commit(transaction, &err);
+	if (ret) {
+		if (refnames->nr == 1)
+			error(_("could not delete reference %s: %s"),
+			      refnames->items[0].string, err.buf);
+		else
+			error(_("could not delete references: %s"), err.buf);
+	}
+
+out:
+	if (!ret && failures)
+		ret = -1;
+	ref_transaction_free(transaction);
+	strbuf_release(&err);
 	free(msg);
-	return retval;
+	return ret;
 }
 
 int delete_refs(const char *msg, struct string_list *refnames,
diff --git a/refs.h b/refs.h
index ff113bb..303c5fa 100644
--- a/refs.h
+++ b/refs.h
@@ -11,6 +11,9 @@
 struct string_list_item;
 struct worktree;
 
+unsigned int ref_storage_format_by_name(const char *name);
+const char *ref_storage_format_to_name(unsigned int ref_storage_format);
+
 /*
  * Resolve a reference, recursively following symbolic refererences.
  *
@@ -123,7 +126,9 @@
 
 int is_branch(const char *refname);
 
-int refs_init_db(struct strbuf *err);
+#define REFS_INIT_DB_IS_WORKTREE (1 << 0)
+
+int refs_init_db(struct ref_store *refs, int flags, struct strbuf *err);
 
 /*
  * Return the peeled value of the oid currently being iterated via
diff --git a/refs/debug.c b/refs/debug.c
index b7ffc4c..634681c 100644
--- a/refs/debug.c
+++ b/refs/debug.c
@@ -33,10 +33,10 @@
 	return (struct ref_store *)res;
 }
 
-static int debug_init_db(struct ref_store *refs, struct strbuf *err)
+static int debug_init_db(struct ref_store *refs, int flags, struct strbuf *err)
 {
 	struct debug_ref_store *drefs = (struct debug_ref_store *)refs;
-	int res = drefs->refs->be->init_db(drefs->refs, err);
+	int res = drefs->refs->be->init_db(drefs->refs, flags, err);
 	trace_printf_key(&trace_refs, "init_db: %d\n", res);
 	return res;
 }
@@ -143,20 +143,6 @@
 	return res;
 }
 
-static int debug_delete_refs(struct ref_store *ref_store, const char *msg,
-			     struct string_list *refnames, unsigned int flags)
-{
-	struct debug_ref_store *drefs = (struct debug_ref_store *)ref_store;
-	int res =
-		drefs->refs->be->delete_refs(drefs->refs, msg, refnames, flags);
-	int i;
-	trace_printf_key(&trace_refs, "delete_refs {\n");
-	for (i = 0; i < refnames->nr; i++)
-		trace_printf_key(&trace_refs, "%s\n", refnames->items[i].string);
-	trace_printf_key(&trace_refs, "}: %d\n", res);
-	return res;
-}
-
 static int debug_rename_ref(struct ref_store *ref_store, const char *oldref,
 			    const char *newref, const char *logmsg)
 {
@@ -440,7 +426,6 @@
 }
 
 struct ref_storage_be refs_be_debug = {
-	.next = NULL,
 	.name = "debug",
 	.init = NULL,
 	.init_db = debug_init_db,
@@ -458,7 +443,6 @@
 
 	.pack_refs = debug_pack_refs,
 	.create_symref = debug_create_symref,
-	.delete_refs = debug_delete_refs,
 	.rename_ref = debug_rename_ref,
 	.copy_ref = debug_copy_ref,
 
diff --git a/refs/files-backend.c b/refs/files-backend.c
index 922e65e..75dcc21 100644
--- a/refs/files-backend.c
+++ b/refs/files-backend.c
@@ -1263,54 +1263,6 @@
 	return 0;
 }
 
-static int files_delete_refs(struct ref_store *ref_store, const char *msg,
-			     struct string_list *refnames, unsigned int flags)
-{
-	struct files_ref_store *refs =
-		files_downcast(ref_store, REF_STORE_WRITE, "delete_refs");
-	struct strbuf err = STRBUF_INIT;
-	int i, result = 0;
-
-	if (!refnames->nr)
-		return 0;
-
-	if (packed_refs_lock(refs->packed_ref_store, 0, &err))
-		goto error;
-
-	if (refs_delete_refs(refs->packed_ref_store, msg, refnames, flags)) {
-		packed_refs_unlock(refs->packed_ref_store);
-		goto error;
-	}
-
-	packed_refs_unlock(refs->packed_ref_store);
-
-	for (i = 0; i < refnames->nr; i++) {
-		const char *refname = refnames->items[i].string;
-
-		if (refs_delete_ref(&refs->base, msg, refname, NULL, flags))
-			result |= error(_("could not remove reference %s"), refname);
-	}
-
-	strbuf_release(&err);
-	return result;
-
-error:
-	/*
-	 * If we failed to rewrite the packed-refs file, then it is
-	 * unsafe to try to remove loose refs, because doing so might
-	 * expose an obsolete packed value for a reference that might
-	 * even point at an object that has been garbage collected.
-	 */
-	if (refnames->nr == 1)
-		error(_("could not delete reference %s: %s"),
-		      refnames->items[0].string, err.buf);
-	else
-		error(_("could not delete references: %s"), err.buf);
-
-	strbuf_release(&err);
-	return -1;
-}
-
 /*
  * People using contrib's git-new-workdir have .git/logs/refs ->
  * /some/other/path/.git/logs/refs, and that may live on another device.
@@ -3266,28 +3218,52 @@
 	return -1;
 }
 
-static int files_init_db(struct ref_store *ref_store, struct strbuf *err UNUSED)
+static int files_init_db(struct ref_store *ref_store,
+			 int flags,
+			 struct strbuf *err UNUSED)
 {
 	struct files_ref_store *refs =
 		files_downcast(ref_store, REF_STORE_WRITE, "init_db");
 	struct strbuf sb = STRBUF_INIT;
 
 	/*
-	 * Create .git/refs/{heads,tags}
+	 * We need to create a "refs" dir in any case so that older versions of
+	 * Git can tell that this is a repository. This serves two main purposes:
+	 *
+	 * - Clients will know to stop walking the parent-directory chain when
+	 *   detecting the Git repository. Otherwise they may end up detecting
+	 *   a Git repository in a parent directory instead.
+	 *
+	 * - Instead of failing to detect a repository with unknown reference
+	 *   format altogether, old clients will print an error saying that
+	 *   they do not understand the reference format extension.
 	 */
-	files_ref_path(refs, &sb, "refs/heads");
+	strbuf_addf(&sb, "%s/refs", ref_store->gitdir);
 	safe_create_dir(sb.buf, 1);
+	adjust_shared_perm(sb.buf);
 
-	strbuf_reset(&sb);
-	files_ref_path(refs, &sb, "refs/tags");
-	safe_create_dir(sb.buf, 1);
+	/*
+	 * There is no need to create directories for common refs when creating
+	 * a worktree ref store.
+	 */
+	if (!(flags & REFS_INIT_DB_IS_WORKTREE)) {
+		/*
+		 * Create .git/refs/{heads,tags}
+		 */
+		strbuf_reset(&sb);
+		files_ref_path(refs, &sb, "refs/heads");
+		safe_create_dir(sb.buf, 1);
+
+		strbuf_reset(&sb);
+		files_ref_path(refs, &sb, "refs/tags");
+		safe_create_dir(sb.buf, 1);
+	}
 
 	strbuf_release(&sb);
 	return 0;
 }
 
 struct ref_storage_be refs_be_files = {
-	.next = NULL,
 	.name = "files",
 	.init = files_ref_store_create,
 	.init_db = files_init_db,
@@ -3298,7 +3274,6 @@
 
 	.pack_refs = files_pack_refs,
 	.create_symref = files_create_symref,
-	.delete_refs = files_delete_refs,
 	.rename_ref = files_rename_ref,
 	.copy_ref = files_copy_ref,
 
diff --git a/refs/packed-backend.c b/refs/packed-backend.c
index 5963e67..a499a91 100644
--- a/refs/packed-backend.c
+++ b/refs/packed-backend.c
@@ -1245,6 +1245,7 @@
 	"# pack-refs with: peeled fully-peeled sorted \n";
 
 static int packed_init_db(struct ref_store *ref_store UNUSED,
+			  int flags UNUSED,
 			  struct strbuf *err UNUSED)
 {
 	/* Nothing to do. */
@@ -1687,55 +1688,6 @@
 	return ref_transaction_commit(transaction, err);
 }
 
-static int packed_delete_refs(struct ref_store *ref_store, const char *msg,
-			     struct string_list *refnames, unsigned int flags)
-{
-	struct packed_ref_store *refs =
-		packed_downcast(ref_store, REF_STORE_WRITE, "delete_refs");
-	struct strbuf err = STRBUF_INIT;
-	struct ref_transaction *transaction;
-	struct string_list_item *item;
-	int ret;
-
-	(void)refs; /* We need the check above, but don't use the variable */
-
-	if (!refnames->nr)
-		return 0;
-
-	/*
-	 * Since we don't check the references' old_oids, the
-	 * individual updates can't fail, so we can pack all of the
-	 * updates into a single transaction.
-	 */
-
-	transaction = ref_store_transaction_begin(ref_store, &err);
-	if (!transaction)
-		return -1;
-
-	for_each_string_list_item(item, refnames) {
-		if (ref_transaction_delete(transaction, item->string, NULL,
-					   flags, msg, &err)) {
-			warning(_("could not delete reference %s: %s"),
-				item->string, err.buf);
-			strbuf_reset(&err);
-		}
-	}
-
-	ret = ref_transaction_commit(transaction, &err);
-
-	if (ret) {
-		if (refnames->nr == 1)
-			error(_("could not delete reference %s: %s"),
-			      refnames->items[0].string, err.buf);
-		else
-			error(_("could not delete references: %s"), err.buf);
-	}
-
-	ref_transaction_free(transaction);
-	strbuf_release(&err);
-	return ret;
-}
-
 static int packed_pack_refs(struct ref_store *ref_store UNUSED,
 			    struct pack_refs_opts *pack_opts UNUSED)
 {
@@ -1753,7 +1705,6 @@
 }
 
 struct ref_storage_be refs_be_packed = {
-	.next = NULL,
 	.name = "packed",
 	.init = packed_ref_store_create,
 	.init_db = packed_init_db,
@@ -1764,7 +1715,6 @@
 
 	.pack_refs = packed_pack_refs,
 	.create_symref = NULL,
-	.delete_refs = packed_delete_refs,
 	.rename_ref = NULL,
 	.copy_ref = NULL,
 
diff --git a/refs/refs-internal.h b/refs/refs-internal.h
index 9db8aec..8221982 100644
--- a/refs/refs-internal.h
+++ b/refs/refs-internal.h
@@ -529,7 +529,9 @@
 					    const char *gitdir,
 					    unsigned int flags);
 
-typedef int ref_init_db_fn(struct ref_store *refs, struct strbuf *err);
+typedef int ref_init_db_fn(struct ref_store *refs,
+			   int flags,
+			   struct strbuf *err);
 
 typedef int ref_transaction_prepare_fn(struct ref_store *refs,
 				       struct ref_transaction *transaction,
@@ -553,8 +555,6 @@
 			     const char *ref_target,
 			     const char *refs_heads_master,
 			     const char *logmsg);
-typedef int delete_refs_fn(struct ref_store *ref_store, const char *msg,
-			   struct string_list *refnames, unsigned int flags);
 typedef int rename_ref_fn(struct ref_store *ref_store,
 			  const char *oldref, const char *newref,
 			  const char *logmsg);
@@ -665,7 +665,6 @@
 				 struct strbuf *referent);
 
 struct ref_storage_be {
-	struct ref_storage_be *next;
 	const char *name;
 	ref_store_init_fn *init;
 	ref_init_db_fn *init_db;
@@ -677,7 +676,6 @@
 
 	pack_refs_fn *pack_refs;
 	create_symref_fn *create_symref;
-	delete_refs_fn *delete_refs;
 	rename_ref_fn *rename_ref;
 	copy_ref_fn *copy_ref;
 
diff --git a/reftable/basics.c b/reftable/basics.c
index f761e48..0785aff 100644
--- a/reftable/basics.c
+++ b/reftable/basics.c
@@ -64,12 +64,11 @@
 	reftable_free(a);
 }
 
-int names_length(char **names)
+size_t names_length(char **names)
 {
 	char **p = names;
-	for (; *p; p++) {
-		/* empty */
-	}
+	while (*p)
+		p++;
 	return p - names;
 }
 
@@ -89,17 +88,13 @@
 			next = end;
 		}
 		if (p < next) {
-			if (names_len == names_cap) {
-				names_cap = 2 * names_cap + 1;
-				names = reftable_realloc(
-					names, names_cap * sizeof(*names));
-			}
+			REFTABLE_ALLOC_GROW(names, names_len + 1, names_cap);
 			names[names_len++] = xstrdup(p);
 		}
 		p = next + 1;
 	}
 
-	names = reftable_realloc(names, (names_len + 1) * sizeof(*names));
+	REFTABLE_REALLOC_ARRAY(names, names_len + 1);
 	names[names_len] = NULL;
 	*namesp = names;
 }
diff --git a/reftable/basics.h b/reftable/basics.h
index 096b368..91f3533 100644
--- a/reftable/basics.h
+++ b/reftable/basics.h
@@ -44,14 +44,27 @@
 int names_equal(char **a, char **b);
 
 /* returns the array size of a NULL-terminated array of strings. */
-int names_length(char **names);
+size_t names_length(char **names);
 
 /* Allocation routines; they invoke the functions set through
  * reftable_set_alloc() */
 void *reftable_malloc(size_t sz);
 void *reftable_realloc(void *p, size_t sz);
 void reftable_free(void *p);
-void *reftable_calloc(size_t sz);
+void *reftable_calloc(size_t nelem, size_t elsize);
+
+#define REFTABLE_ALLOC_ARRAY(x, alloc) (x) = reftable_malloc(st_mult(sizeof(*(x)), (alloc)))
+#define REFTABLE_CALLOC_ARRAY(x, alloc) (x) = reftable_calloc((alloc), sizeof(*(x)))
+#define REFTABLE_REALLOC_ARRAY(x, alloc) (x) = reftable_realloc((x), st_mult(sizeof(*(x)), (alloc)))
+#define REFTABLE_ALLOC_GROW(x, nr, alloc) \
+	do { \
+		if ((nr) > alloc) { \
+			alloc = 2 * (alloc) + 1; \
+			if (alloc < (nr)) \
+				alloc = (nr); \
+			REFTABLE_REALLOC_ARRAY(x, alloc); \
+		} \
+	} while (0)
 
 /* Find the longest shared prefix size of `a` and `b` */
 struct strbuf;
diff --git a/reftable/block.c b/reftable/block.c
index 1df3d8a..ce8a7d2 100644
--- a/reftable/block.c
+++ b/reftable/block.c
@@ -51,12 +51,7 @@
 	if (2 + 3 * rlen + n > w->block_size - w->next)
 		return -1;
 	if (is_restart) {
-		if (w->restart_len == w->restart_cap) {
-			w->restart_cap = w->restart_cap * 2 + 1;
-			w->restarts = reftable_realloc(
-				w->restarts, sizeof(uint32_t) * w->restart_cap);
-		}
-
+		REFTABLE_ALLOC_GROW(w->restarts, w->restart_len + 1, w->restart_cap);
 		w->restarts[w->restart_len++] = w->next;
 	}
 
@@ -148,8 +143,10 @@
 		int block_header_skip = 4 + w->header_off;
 		uLongf src_len = w->next - block_header_skip;
 		uLongf dest_cap = src_len * 1.001 + 12;
+		uint8_t *compressed;
 
-		uint8_t *compressed = reftable_malloc(dest_cap);
+		REFTABLE_ALLOC_ARRAY(compressed, dest_cap);
+
 		while (1) {
 			uLongf out_dest_len = dest_cap;
 			int zresult = compress2(compressed, &out_dest_len,
@@ -206,9 +203,9 @@
 		uLongf dst_len = sz - block_header_skip; /* total size of dest
 							    buffer. */
 		uLongf src_len = block->len - block_header_skip;
-		/* Log blocks specify the *uncompressed* size in their header.
-		 */
-		uncompressed = reftable_malloc(sz);
+
+		/* Log blocks specify the *uncompressed* size in their header. */
+		REFTABLE_ALLOC_ARRAY(uncompressed, sz);
 
 		/* Copy over the block header verbatim. It's not compressed. */
 		memcpy(uncompressed, block->data, block_header_skip);
@@ -385,23 +382,23 @@
 		.key = *want,
 		.r = br,
 	};
-	struct reftable_record rec = reftable_new_record(block_reader_type(br));
-	int err = 0;
 	struct block_iter next = BLOCK_ITER_INIT;
+	struct reftable_record rec;
+	int err = 0, i;
 
-	int i = binsearch(br->restart_count, &restart_key_less, &args);
 	if (args.error) {
 		err = REFTABLE_FORMAT_ERROR;
 		goto done;
 	}
 
-	it->br = br;
-	if (i > 0) {
-		i--;
-		it->next_off = block_reader_restart_offset(br, i);
-	} else {
+	i = binsearch(br->restart_count, &restart_key_less, &args);
+	if (i > 0)
+		it->next_off = block_reader_restart_offset(br, i - 1);
+	else
 		it->next_off = br->header_off + 4;
-	}
+	it->br = br;
+
+	reftable_record_init(&rec, block_reader_type(br));
 
 	/* We're looking for the last entry less/equal than the wanted key, so
 	   we have to go one entry too far and then back up.
diff --git a/reftable/block_test.c b/reftable/block_test.c
index c00bbc8..e162c6e 100644
--- a/reftable/block_test.c
+++ b/reftable/block_test.c
@@ -36,7 +36,7 @@
 	int j = 0;
 	struct strbuf want = STRBUF_INIT;
 
-	block.data = reftable_calloc(block_size);
+	REFTABLE_CALLOC_ARRAY(block.data, block_size);
 	block.len = block_size;
 	block.source = malloc_block_source();
 	block_writer_init(&bw, BLOCK_TYPE_REF, block.data, block_size,
@@ -49,13 +49,11 @@
 
 	for (i = 0; i < N; i++) {
 		char name[100];
-		uint8_t hash[GIT_SHA1_RAWSZ];
 		snprintf(name, sizeof(name), "branch%02d", i);
-		memset(hash, i, sizeof(hash));
 
 		rec.u.ref.refname = name;
 		rec.u.ref.value_type = REFTABLE_REF_VAL1;
-		rec.u.ref.value.val1 = hash;
+		memset(rec.u.ref.value.val1, i, GIT_SHA1_RAWSZ);
 
 		names[i] = xstrdup(name);
 		n = block_writer_add(&bw, &rec);
diff --git a/reftable/blocksource.c b/reftable/blocksource.c
index a1ea304..eeed254 100644
--- a/reftable/blocksource.c
+++ b/reftable/blocksource.c
@@ -29,7 +29,7 @@
 {
 	struct strbuf *b = v;
 	assert(off + size <= b->len);
-	dest->data = reftable_calloc(size);
+	REFTABLE_CALLOC_ARRAY(dest->data, size);
 	memcpy(dest->data, b->buf + off, size);
 	dest->len = size;
 	return size;
@@ -76,8 +76,8 @@
 }
 
 struct file_block_source {
-	int fd;
 	uint64_t size;
+	unsigned char *data;
 };
 
 static uint64_t file_size(void *b)
@@ -87,19 +87,12 @@
 
 static void file_return_block(void *b, struct reftable_block *dest)
 {
-	if (dest->len)
-		memset(dest->data, 0xff, dest->len);
-	reftable_free(dest->data);
 }
 
-static void file_close(void *b)
+static void file_close(void *v)
 {
-	int fd = ((struct file_block_source *)b)->fd;
-	if (fd > 0) {
-		close(fd);
-		((struct file_block_source *)b)->fd = 0;
-	}
-
+	struct file_block_source *b = v;
+	munmap(b->data, b->size);
 	reftable_free(b);
 }
 
@@ -108,9 +101,7 @@
 {
 	struct file_block_source *b = v;
 	assert(off + size <= b->size);
-	dest->data = reftable_malloc(size);
-	if (pread_in_full(b->fd, dest->data, size, off) != size)
-		return -1;
+	dest->data = b->data + off;
 	dest->len = size;
 	return size;
 }
@@ -125,26 +116,26 @@
 int reftable_block_source_from_file(struct reftable_block_source *bs,
 				    const char *name)
 {
-	struct stat st = { 0 };
-	int err = 0;
-	int fd = open(name, O_RDONLY);
-	struct file_block_source *p = NULL;
+	struct file_block_source *p;
+	struct stat st;
+	int fd;
+
+	fd = open(name, O_RDONLY);
 	if (fd < 0) {
-		if (errno == ENOENT) {
+		if (errno == ENOENT)
 			return REFTABLE_NOT_EXIST_ERROR;
-		}
 		return -1;
 	}
 
-	err = fstat(fd, &st);
-	if (err < 0) {
+	if (fstat(fd, &st) < 0) {
 		close(fd);
 		return REFTABLE_IO_ERROR;
 	}
 
-	p = reftable_calloc(sizeof(struct file_block_source));
+	REFTABLE_CALLOC_ARRAY(p, 1);
 	p->size = st.st_size;
-	p->fd = fd;
+	p->data = xmmap(NULL, st.st_size, PROT_READ, MAP_PRIVATE, fd, 0);
+	close(fd);
 
 	assert(!bs->ops);
 	bs->ops = &file_vtable;
diff --git a/reftable/iter.c b/reftable/iter.c
index a8d174c..8b5ebf6 100644
--- a/reftable/iter.c
+++ b/reftable/iter.c
@@ -160,8 +160,7 @@
 			       int oid_len, uint64_t *offsets, int offset_len)
 {
 	struct indexed_table_ref_iter empty = INDEXED_TABLE_REF_ITER_INIT;
-	struct indexed_table_ref_iter *itr =
-		reftable_calloc(sizeof(struct indexed_table_ref_iter));
+	struct indexed_table_ref_iter *itr = reftable_calloc(1, sizeof(*itr));
 	int err = 0;
 
 	*itr = empty;
diff --git a/reftable/merged.c b/reftable/merged.c
index 5743940..a0f222e 100644
--- a/reftable/merged.c
+++ b/reftable/merged.c
@@ -19,24 +19,23 @@
 
 static int merged_iter_init(struct merged_iter *mi)
 {
-	int i = 0;
-	for (i = 0; i < mi->stack_len; i++) {
-		struct reftable_record rec = reftable_new_record(mi->typ);
-		int err = iterator_next(&mi->stack[i], &rec);
-		if (err < 0) {
-			return err;
-		}
+	for (size_t i = 0; i < mi->stack_len; i++) {
+		struct pq_entry e = {
+			.index = i,
+		};
+		int err;
 
+		reftable_record_init(&e.rec, mi->typ);
+		err = iterator_next(&mi->stack[i], &e.rec);
+		if (err < 0)
+			return err;
 		if (err > 0) {
 			reftable_iterator_destroy(&mi->stack[i]);
-			reftable_record_release(&rec);
-		} else {
-			struct pq_entry e = {
-				.rec = rec,
-				.index = i,
-			};
-			merged_iter_pqueue_add(&mi->pq, &e);
+			reftable_record_release(&e.rec);
+			continue;
 		}
+
+		merged_iter_pqueue_add(&mi->pq, &e);
 	}
 
 	return 0;
@@ -45,11 +44,10 @@
 static void merged_iter_close(void *p)
 {
 	struct merged_iter *mi = p;
-	int i = 0;
+
 	merged_iter_pqueue_release(&mi->pq);
-	for (i = 0; i < mi->stack_len; i++) {
+	for (size_t i = 0; i < mi->stack_len; i++)
 		reftable_iterator_destroy(&mi->stack[i]);
-	}
 	reftable_free(mi->stack);
 	strbuf_release(&mi->key);
 	strbuf_release(&mi->entry_key);
@@ -59,10 +57,12 @@
 					       size_t idx)
 {
 	struct pq_entry e = {
-		.rec = reftable_new_record(mi->typ),
 		.index = idx,
 	};
-	int err = iterator_next(&mi->stack[idx], &e.rec);
+	int err;
+
+	reftable_record_init(&e.rec, mi->typ);
+	err = iterator_next(&mi->stack[idx], &e.rec);
 	if (err < 0)
 		return err;
 
@@ -123,12 +123,12 @@
 		reftable_record_release(&top.rec);
 	}
 
-	reftable_record_copy_from(rec, &entry.rec, hash_size(mi->hash_id));
+	reftable_record_release(rec);
+	*rec = entry.rec;
 
 done:
-	reftable_record_release(&entry.rec);
-	strbuf_release(&mi->entry_key);
-	strbuf_release(&mi->key);
+	if (err)
+		reftable_record_release(&entry.rec);
 	return err;
 }
 
@@ -168,14 +168,14 @@
 }
 
 int reftable_new_merged_table(struct reftable_merged_table **dest,
-			      struct reftable_table *stack, int n,
+			      struct reftable_table *stack, size_t n,
 			      uint32_t hash_id)
 {
 	struct reftable_merged_table *m = NULL;
 	uint64_t last_max = 0;
 	uint64_t first_min = 0;
-	int i = 0;
-	for (i = 0; i < n; i++) {
+
+	for (size_t i = 0; i < n; i++) {
 		uint64_t min = reftable_table_min_update_index(&stack[i]);
 		uint64_t max = reftable_table_max_update_index(&stack[i]);
 
@@ -190,7 +190,7 @@
 		}
 	}
 
-	m = reftable_calloc(sizeof(struct reftable_merged_table));
+	REFTABLE_CALLOC_ARRAY(m, 1);
 	m->stack = stack;
 	m->stack_len = n;
 	m->min = first_min;
@@ -239,50 +239,38 @@
 				    struct reftable_iterator *it,
 				    struct reftable_record *rec)
 {
-	struct reftable_iterator *iters = reftable_calloc(
-		sizeof(struct reftable_iterator) * mt->stack_len);
 	struct merged_iter merged = {
-		.stack = iters,
 		.typ = reftable_record_type(rec),
 		.hash_id = mt->hash_id,
 		.suppress_deletions = mt->suppress_deletions,
 		.key = STRBUF_INIT,
 		.entry_key = STRBUF_INIT,
 	};
-	int n = 0;
-	int err = 0;
-	int i = 0;
-	for (i = 0; i < mt->stack_len && err == 0; i++) {
-		int e = reftable_table_seek_record(&mt->stack[i], &iters[n],
-						   rec);
-		if (e < 0) {
-			err = e;
-		}
-		if (e == 0) {
-			n++;
-		}
-	}
-	if (err < 0) {
-		int i = 0;
-		for (i = 0; i < n; i++) {
-			reftable_iterator_destroy(&iters[i]);
-		}
-		reftable_free(iters);
-		return err;
+	struct merged_iter *p;
+	int err;
+
+	REFTABLE_CALLOC_ARRAY(merged.stack, mt->stack_len);
+	for (size_t i = 0; i < mt->stack_len; i++) {
+		err = reftable_table_seek_record(&mt->stack[i],
+						 &merged.stack[merged.stack_len], rec);
+		if (err < 0)
+			goto out;
+		if (!err)
+			merged.stack_len++;
 	}
 
-	merged.stack_len = n;
 	err = merged_iter_init(&merged);
-	if (err < 0) {
+	if (err < 0)
+		goto out;
+
+	p = reftable_malloc(sizeof(struct merged_iter));
+	*p = merged;
+	iterator_from_merged_iter(it, p);
+
+out:
+	if (err < 0)
 		merged_iter_close(&merged);
-		return err;
-	} else {
-		struct merged_iter *p =
-			reftable_malloc(sizeof(struct merged_iter));
-		*p = merged;
-		iterator_from_merged_iter(it, p);
-	}
-	return 0;
+	return err;
 }
 
 int reftable_merged_table_seek_ref(struct reftable_merged_table *mt,
diff --git a/reftable/merged_test.c b/reftable/merged_test.c
index 0d6e0d4..d0f77a3 100644
--- a/reftable/merged_test.c
+++ b/reftable/merged_test.c
@@ -42,7 +42,7 @@
 		}
 	}
 
-	w = reftable_new_writer(&strbuf_add_void, buf, &opts);
+	w = reftable_new_writer(&strbuf_add_void, &noop_flush, buf, &opts);
 	reftable_writer_set_limits(w, min, max);
 
 	for (i = 0; i < n; i++) {
@@ -70,7 +70,7 @@
 		.exact_log_message = 1,
 	};
 	struct reftable_writer *w = NULL;
-	w = reftable_new_writer(&strbuf_add_void, buf, &opts);
+	w = reftable_new_writer(&strbuf_add_void, &noop_flush, buf, &opts);
 	reftable_writer_set_limits(w, update_index, update_index);
 
 	for (i = 0; i < n; i++) {
@@ -88,16 +88,17 @@
 merged_table_from_records(struct reftable_ref_record **refs,
 			  struct reftable_block_source **source,
 			  struct reftable_reader ***readers, int *sizes,
-			  struct strbuf *buf, int n)
+			  struct strbuf *buf, size_t n)
 {
-	int i = 0;
 	struct reftable_merged_table *mt = NULL;
+	struct reftable_table *tabs;
 	int err;
-	struct reftable_table *tabs =
-		reftable_calloc(n * sizeof(struct reftable_table));
-	*readers = reftable_calloc(n * sizeof(struct reftable_reader *));
-	*source = reftable_calloc(n * sizeof(**source));
-	for (i = 0; i < n; i++) {
+
+	REFTABLE_CALLOC_ARRAY(tabs, n);
+	REFTABLE_CALLOC_ARRAY(*readers, n);
+	REFTABLE_CALLOC_ARRAY(*source, n);
+
+	for (size_t i = 0; i < n; i++) {
 		write_test_table(&buf[i], refs[i], sizes[i]);
 		block_source_from_strbuf(&(*source)[i], &buf[i]);
 
@@ -122,13 +123,11 @@
 
 static void test_merged_between(void)
 {
-	uint8_t hash1[GIT_SHA1_RAWSZ] = { 1, 2, 3, 0 };
-
 	struct reftable_ref_record r1[] = { {
 		.refname = "b",
 		.update_index = 1,
 		.value_type = REFTABLE_REF_VAL1,
-		.value.val1 = hash1,
+		.value.val1 = { 1, 2, 3, 0 },
 	} };
 	struct reftable_ref_record r2[] = { {
 		.refname = "a",
@@ -164,26 +163,24 @@
 
 static void test_merged(void)
 {
-	uint8_t hash1[GIT_SHA1_RAWSZ] = { 1 };
-	uint8_t hash2[GIT_SHA1_RAWSZ] = { 2 };
 	struct reftable_ref_record r1[] = {
 		{
 			.refname = "a",
 			.update_index = 1,
 			.value_type = REFTABLE_REF_VAL1,
-			.value.val1 = hash1,
+			.value.val1 = { 1 },
 		},
 		{
 			.refname = "b",
 			.update_index = 1,
 			.value_type = REFTABLE_REF_VAL1,
-			.value.val1 = hash1,
+			.value.val1 = { 1 },
 		},
 		{
 			.refname = "c",
 			.update_index = 1,
 			.value_type = REFTABLE_REF_VAL1,
-			.value.val1 = hash1,
+			.value.val1 = { 1 },
 		}
 	};
 	struct reftable_ref_record r2[] = { {
@@ -196,13 +193,13 @@
 			.refname = "c",
 			.update_index = 3,
 			.value_type = REFTABLE_REF_VAL1,
-			.value.val1 = hash2,
+			.value.val1 = { 2 },
 		},
 		{
 			.refname = "d",
 			.update_index = 3,
 			.value_type = REFTABLE_REF_VAL1,
-			.value.val1 = hash1,
+			.value.val1 = { 1 },
 		},
 	};
 
@@ -235,14 +232,10 @@
 	while (len < 100) { /* cap loops/recursion. */
 		struct reftable_ref_record ref = { NULL };
 		int err = reftable_iterator_next_ref(&it, &ref);
-		if (err > 0) {
+		if (err > 0)
 			break;
-		}
-		if (len == cap) {
-			cap = 2 * cap + 1;
-			out = reftable_realloc(
-				out, sizeof(struct reftable_ref_record) * cap);
-		}
+
+		REFTABLE_ALLOC_GROW(out, len + 1, cap);
 		out[len++] = ref;
 	}
 	reftable_iterator_destroy(&it);
@@ -269,16 +262,17 @@
 merged_table_from_log_records(struct reftable_log_record **logs,
 			      struct reftable_block_source **source,
 			      struct reftable_reader ***readers, int *sizes,
-			      struct strbuf *buf, int n)
+			      struct strbuf *buf, size_t n)
 {
-	int i = 0;
 	struct reftable_merged_table *mt = NULL;
+	struct reftable_table *tabs;
 	int err;
-	struct reftable_table *tabs =
-		reftable_calloc(n * sizeof(struct reftable_table));
-	*readers = reftable_calloc(n * sizeof(struct reftable_reader *));
-	*source = reftable_calloc(n * sizeof(**source));
-	for (i = 0; i < n; i++) {
+
+	REFTABLE_CALLOC_ARRAY(tabs, n);
+	REFTABLE_CALLOC_ARRAY(*readers, n);
+	REFTABLE_CALLOC_ARRAY(*source, n);
+
+	for (size_t i = 0; i < n; i++) {
 		write_test_log_table(&buf[i], logs[i], sizes[i], i + 1);
 		block_source_from_strbuf(&(*source)[i], &buf[i]);
 
@@ -372,14 +366,10 @@
 	while (len < 100) { /* cap loops/recursion. */
 		struct reftable_log_record log = { NULL };
 		int err = reftable_iterator_next_log(&it, &log);
-		if (err > 0) {
+		if (err > 0)
 			break;
-		}
-		if (len == cap) {
-			cap = 2 * cap + 1;
-			out = reftable_realloc(
-				out, sizeof(struct reftable_log_record) * cap);
-		}
+
+		REFTABLE_ALLOC_GROW(out, len + 1, cap);
 		out[len++] = log;
 	}
 	reftable_iterator_destroy(&it);
@@ -416,7 +406,7 @@
 	struct reftable_write_options opts = { 0 };
 	struct strbuf buf = STRBUF_INIT;
 	struct reftable_writer *w =
-		reftable_new_writer(&strbuf_add_void, &buf, &opts);
+		reftable_new_writer(&strbuf_add_void, &noop_flush, &buf, &opts);
 
 	struct reftable_ref_record rec = {
 		.refname = "master",
@@ -424,7 +414,7 @@
 	};
 	int err;
 	struct reftable_block_source source = { NULL };
-	struct reftable_table *tab = reftable_calloc(sizeof(*tab) * 1);
+	struct reftable_table *tab = reftable_calloc(1, sizeof(*tab));
 	uint32_t hash_id;
 	struct reftable_reader *rd = NULL;
 	struct reftable_merged_table *merged = NULL;
diff --git a/reftable/pq.c b/reftable/pq.c
index dcefeb7..2461daf 100644
--- a/reftable/pq.c
+++ b/reftable/pq.c
@@ -75,13 +75,9 @@
 {
 	int i = 0;
 
-	if (pq->len == pq->cap) {
-		pq->cap = 2 * pq->cap + 1;
-		pq->heap = reftable_realloc(pq->heap,
-					    pq->cap * sizeof(struct pq_entry));
-	}
-
+	REFTABLE_ALLOC_GROW(pq->heap, pq->len + 1, pq->cap);
 	pq->heap[pq->len++] = *e;
+
 	i = pq->len - 1;
 	while (i > 0) {
 		int j = (i - 1) / 2;
diff --git a/reftable/publicbasics.c b/reftable/publicbasics.c
index bcb8253..44b84a1 100644
--- a/reftable/publicbasics.c
+++ b/reftable/publicbasics.c
@@ -37,8 +37,9 @@
 		free(p);
 }
 
-void *reftable_calloc(size_t sz)
+void *reftable_calloc(size_t nelem, size_t elsize)
 {
+	size_t sz = st_mult(nelem, elsize);
 	void *p = reftable_malloc(sz);
 	memset(p, 0, sz);
 	return p;
diff --git a/reftable/reader.c b/reftable/reader.c
index 64dc366..2663b03 100644
--- a/reftable/reader.c
+++ b/reftable/reader.c
@@ -444,13 +444,13 @@
 static int reader_seek_linear(struct table_iter *ti,
 			      struct reftable_record *want)
 {
-	struct reftable_record rec =
-		reftable_new_record(reftable_record_type(want));
 	struct strbuf want_key = STRBUF_INIT;
 	struct strbuf got_key = STRBUF_INIT;
 	struct table_iter next = TABLE_ITER_INIT;
+	struct reftable_record rec;
 	int err = -1;
 
+	reftable_record_init(&rec, reftable_record_type(want));
 	reftable_record_key(want, &want_key);
 
 	while (1) {
@@ -508,8 +508,38 @@
 	if (err < 0)
 		goto done;
 
+	/*
+	 * The index may consist of multiple levels, where each level may have
+	 * multiple index blocks. We start by doing a linear search in the
+	 * highest layer that identifies the relevant index block as well as
+	 * the record inside that block that corresponds to our wanted key.
+	 */
 	err = reader_seek_linear(&index_iter, &want_index);
+	if (err < 0)
+		goto done;
+
+	/*
+	 * Traverse down the levels until we find a non-index entry.
+	 */
 	while (1) {
+		/*
+		 * In case we seek a record that does not exist the index iter
+		 * will tell us that the iterator is over. This works because
+		 * the last index entry of the current level will contain the
+		 * last key it knows about. So in case our seeked key is larger
+		 * than the last indexed key we know that it won't exist.
+		 *
+		 * There is one subtlety in the layout of the index section
+		 * that makes this work as expected: the highest-level index is
+		 * at end of the section and will point backwards and thus we
+		 * start reading from the end of the index section, not the
+		 * beginning.
+		 *
+		 * If that wasn't the case and the order was reversed then the
+		 * linear seek would seek into the lower levels and traverse
+		 * all levels of the index only to find out that the key does
+		 * not exist.
+		 */
 		err = table_iter_next(&index_iter, &index_result);
 		table_iter_block_done(&index_iter);
 		if (err != 0)
@@ -539,8 +569,7 @@
 
 	if (err == 0) {
 		struct table_iter empty = TABLE_ITER_INIT;
-		struct table_iter *malloced =
-			reftable_calloc(sizeof(struct table_iter));
+		struct table_iter *malloced = reftable_calloc(1, sizeof(*malloced));
 		*malloced = empty;
 		table_iter_copy_from(malloced, &next);
 		iterator_from_table_iter(it, malloced);
@@ -635,8 +664,7 @@
 int reftable_new_reader(struct reftable_reader **p,
 			struct reftable_block_source *src, char const *name)
 {
-	struct reftable_reader *rd =
-		reftable_calloc(sizeof(struct reftable_reader));
+	struct reftable_reader *rd = reftable_calloc(1, sizeof(*rd));
 	int err = init_reader(rd, src, name);
 	if (err == 0) {
 		*p = rd;
@@ -711,7 +739,7 @@
 					      uint8_t *oid)
 {
 	struct table_iter ti_empty = TABLE_ITER_INIT;
-	struct table_iter *ti = reftable_calloc(sizeof(struct table_iter));
+	struct table_iter *ti = reftable_calloc(1, sizeof(*ti));
 	struct filtering_ref_iterator *filter = NULL;
 	struct filtering_ref_iterator empty = FILTERING_REF_ITERATOR_INIT;
 	int oid_len = hash_size(r->hash_id);
diff --git a/reftable/readwrite_test.c b/reftable/readwrite_test.c
index 79cd4e4..363fe0f 100644
--- a/reftable/readwrite_test.c
+++ b/reftable/readwrite_test.c
@@ -51,26 +51,25 @@
 		.hash_id = hash_id,
 	};
 	struct reftable_writer *w =
-		reftable_new_writer(&strbuf_add_void, buf, &opts);
+		reftable_new_writer(&strbuf_add_void, &noop_flush, buf, &opts);
 	struct reftable_ref_record ref = { NULL };
 	int i = 0, n;
 	struct reftable_log_record log = { NULL };
 	const struct reftable_stats *stats = NULL;
-	*names = reftable_calloc(sizeof(char *) * (N + 1));
+
+	REFTABLE_CALLOC_ARRAY(*names, N + 1);
+
 	reftable_writer_set_limits(w, update_index, update_index);
 	for (i = 0; i < N; i++) {
-		uint8_t hash[GIT_SHA256_RAWSZ] = { 0 };
 		char name[100];
 		int n;
 
-		set_test_hash(hash, i);
-
 		snprintf(name, sizeof(name), "refs/heads/branch%02d", i);
 
 		ref.refname = name;
 		ref.update_index = update_index;
 		ref.value_type = REFTABLE_REF_VAL1;
-		ref.value.val1 = hash;
+		set_test_hash(ref.value.val1, i);
 		(*names)[i] = xstrdup(name);
 
 		n = reftable_writer_add_ref(w, &ref);
@@ -133,7 +132,7 @@
 					   .message = "commit: 9\n",
 				   } } };
 	struct reftable_writer *w =
-		reftable_new_writer(&strbuf_add_void, &buf, &opts);
+		reftable_new_writer(&strbuf_add_void, &noop_flush, &buf, &opts);
 
 	/* This tests buffer extension for log compression. Must use a random
 	   hash, to ensure that the compressed part is larger than the original.
@@ -174,7 +173,7 @@
 					   .message = msg,
 				   } } };
 	struct reftable_writer *w =
-		reftable_new_writer(&strbuf_add_void, &buf, &opts);
+		reftable_new_writer(&strbuf_add_void, &noop_flush, &buf, &opts);
 
 	uint8_t hash1[GIT_SHA1_RAWSZ]  = {1}, hash2[GIT_SHA1_RAWSZ] = { 2 };
 
@@ -191,7 +190,7 @@
 static void test_log_write_read(void)
 {
 	int N = 2;
-	char **names = reftable_calloc(sizeof(char *) * (N + 1));
+	char **names = reftable_calloc(N + 1, sizeof(*names));
 	int err;
 	struct reftable_write_options opts = {
 		.block_size = 256,
@@ -205,7 +204,7 @@
 	struct reftable_block_source source = { NULL };
 	struct strbuf buf = STRBUF_INIT;
 	struct reftable_writer *w =
-		reftable_new_writer(&strbuf_add_void, &buf, &opts);
+		reftable_new_writer(&strbuf_add_void, &noop_flush, &buf, &opts);
 	const struct reftable_stats *stats = NULL;
 	reftable_writer_set_limits(w, 0, N);
 	for (i = 0; i < N; i++) {
@@ -297,7 +296,7 @@
 	struct reftable_block_source source = { 0 };
 	struct strbuf buf = STRBUF_INIT;
 	struct reftable_writer *w =
-		reftable_new_writer(&strbuf_add_void, &buf, &opts);
+		reftable_new_writer(&strbuf_add_void, &noop_flush, &buf, &opts);
 	const struct reftable_stats *stats = NULL;
 	uint8_t hash1[GIT_SHA1_RAWSZ] = { 1 };
 	uint8_t hash2[GIT_SHA1_RAWSZ] = { 2 };
@@ -522,7 +521,7 @@
 static void test_table_refs_for(int indexed)
 {
 	int N = 50;
-	char **want_names = reftable_calloc(sizeof(char *) * (N + 1));
+	char **want_names = reftable_calloc(N + 1, sizeof(*want_names));
 	int want_names_len = 0;
 	uint8_t want_hash[GIT_SHA1_RAWSZ];
 
@@ -538,7 +537,7 @@
 
 	struct strbuf buf = STRBUF_INIT;
 	struct reftable_writer *w =
-		reftable_new_writer(&strbuf_add_void, &buf, &opts);
+		reftable_new_writer(&strbuf_add_void, &noop_flush, &buf, &opts);
 
 	struct reftable_iterator it = { NULL };
 	int j;
@@ -549,8 +548,6 @@
 		uint8_t hash[GIT_SHA1_RAWSZ];
 		char fill[51] = { 0 };
 		char name[100];
-		uint8_t hash1[GIT_SHA1_RAWSZ];
-		uint8_t hash2[GIT_SHA1_RAWSZ];
 		struct reftable_ref_record ref = { NULL };
 
 		memset(hash, i, sizeof(hash));
@@ -560,11 +557,9 @@
 		name[40] = 0;
 		ref.refname = name;
 
-		set_test_hash(hash1, i / 4);
-		set_test_hash(hash2, 3 + i / 4);
 		ref.value_type = REFTABLE_REF_VAL2;
-		ref.value.val2.value = hash1;
-		ref.value.val2.target_value = hash2;
+		set_test_hash(ref.value.val2.value, i / 4);
+		set_test_hash(ref.value.val2.target_value, 3 + i / 4);
 
 		/* 80 bytes / entry, so 3 entries per block. Yields 17
 		 */
@@ -572,8 +567,8 @@
 		n = reftable_writer_add_ref(w, &ref);
 		EXPECT(n == 0);
 
-		if (!memcmp(hash1, want_hash, GIT_SHA1_RAWSZ) ||
-		    !memcmp(hash2, want_hash, GIT_SHA1_RAWSZ)) {
+		if (!memcmp(ref.value.val2.value, want_hash, GIT_SHA1_RAWSZ) ||
+		    !memcmp(ref.value.val2.target_value, want_hash, GIT_SHA1_RAWSZ)) {
 			want_names[want_names_len++] = xstrdup(name);
 		}
 	}
@@ -635,7 +630,7 @@
 	struct reftable_write_options opts = { 0 };
 	struct strbuf buf = STRBUF_INIT;
 	struct reftable_writer *w =
-		reftable_new_writer(&strbuf_add_void, &buf, &opts);
+		reftable_new_writer(&strbuf_add_void, &noop_flush, &buf, &opts);
 	struct reftable_block_source source = { NULL };
 	struct reftable_reader *rd = NULL;
 	struct reftable_ref_record rec = { NULL };
@@ -673,12 +668,11 @@
 	};
 	struct strbuf buf = STRBUF_INIT;
 	struct reftable_writer *w =
-		reftable_new_writer(&strbuf_add_void, &buf, &opts);
-	uint8_t hash[GIT_SHA1_RAWSZ] = {42};
+		reftable_new_writer(&strbuf_add_void, &noop_flush, &buf, &opts);
 	struct reftable_ref_record ref = {
 		.update_index = 1,
 		.value_type = REFTABLE_REF_VAL1,
-		.value.val1 = hash,
+		.value.val1 = {42},
 	};
 	int err;
 	int i;
@@ -709,12 +703,11 @@
 	};
 	struct strbuf buf = STRBUF_INIT;
 	struct reftable_writer *w =
-		reftable_new_writer(&strbuf_add_void, &buf, &opts);
-	uint8_t hash[GIT_SHA1_RAWSZ] = {42};
+		reftable_new_writer(&strbuf_add_void, &noop_flush, &buf, &opts);
 	struct reftable_ref_record ref = {
 		.update_index = 1,
 		.value_type = REFTABLE_REF_VAL1,
-		.value.val1 = hash,
+		.value.val1 = {42},
 	};
 	int err;
 	int i;
@@ -744,7 +737,7 @@
 	struct reftable_write_options opts = { 0 };
 	struct strbuf buf = STRBUF_INIT;
 	struct reftable_writer *w =
-		reftable_new_writer(&strbuf_add_void, &buf, &opts);
+		reftable_new_writer(&strbuf_add_void, &noop_flush, &buf, &opts);
 	struct reftable_ref_record ref = {
 		.refname = "",
 		.update_index = 1,
@@ -767,7 +760,7 @@
 	struct reftable_write_options opts = { 0 };
 	struct strbuf buf = STRBUF_INIT;
 	struct reftable_writer *w =
-		reftable_new_writer(&strbuf_add_void, &buf, &opts);
+		reftable_new_writer(&strbuf_add_void, &noop_flush, &buf, &opts);
 	struct reftable_ref_record refs[2] = {
 		{
 			.refname = "b",
@@ -797,6 +790,139 @@
 	strbuf_release(&buf);
 }
 
+static void test_write_multiple_indices(void)
+{
+	struct reftable_write_options opts = {
+		.block_size = 100,
+	};
+	struct strbuf writer_buf = STRBUF_INIT, buf = STRBUF_INIT;
+	struct reftable_block_source source = { 0 };
+	struct reftable_iterator it = { 0 };
+	const struct reftable_stats *stats;
+	struct reftable_writer *writer;
+	struct reftable_reader *reader;
+	int err, i;
+
+	writer = reftable_new_writer(&strbuf_add_void, &noop_flush, &writer_buf, &opts);
+	reftable_writer_set_limits(writer, 1, 1);
+	for (i = 0; i < 100; i++) {
+		struct reftable_ref_record ref = {
+			.update_index = 1,
+			.value_type = REFTABLE_REF_VAL1,
+			.value.val1 = {i},
+		};
+
+		strbuf_reset(&buf);
+		strbuf_addf(&buf, "refs/heads/%04d", i);
+		ref.refname = buf.buf,
+
+		err = reftable_writer_add_ref(writer, &ref);
+		EXPECT_ERR(err);
+	}
+
+	for (i = 0; i < 100; i++) {
+		unsigned char hash[GIT_SHA1_RAWSZ] = {i};
+		struct reftable_log_record log = {
+			.update_index = 1,
+			.value_type = REFTABLE_LOG_UPDATE,
+			.value.update = {
+				.old_hash = hash,
+				.new_hash = hash,
+			},
+		};
+
+		strbuf_reset(&buf);
+		strbuf_addf(&buf, "refs/heads/%04d", i);
+		log.refname = buf.buf,
+
+		err = reftable_writer_add_log(writer, &log);
+		EXPECT_ERR(err);
+	}
+
+	reftable_writer_close(writer);
+
+	/*
+	 * The written data should be sufficiently large to result in indices
+	 * for each of the block types.
+	 */
+	stats = reftable_writer_stats(writer);
+	EXPECT(stats->ref_stats.index_offset > 0);
+	EXPECT(stats->obj_stats.index_offset > 0);
+	EXPECT(stats->log_stats.index_offset > 0);
+
+	block_source_from_strbuf(&source, &writer_buf);
+	err = reftable_new_reader(&reader, &source, "filename");
+	EXPECT_ERR(err);
+
+	/*
+	 * Seeking the log uses the log index now. In case there is any
+	 * confusion regarding indices we would notice here.
+	 */
+	err = reftable_reader_seek_log(reader, &it, "");
+	EXPECT_ERR(err);
+
+	reftable_iterator_destroy(&it);
+	reftable_writer_free(writer);
+	reftable_reader_free(reader);
+	strbuf_release(&writer_buf);
+	strbuf_release(&buf);
+}
+
+static void test_write_multi_level_index(void)
+{
+	struct reftable_write_options opts = {
+		.block_size = 100,
+	};
+	struct strbuf writer_buf = STRBUF_INIT, buf = STRBUF_INIT;
+	struct reftable_block_source source = { 0 };
+	struct reftable_iterator it = { 0 };
+	const struct reftable_stats *stats;
+	struct reftable_writer *writer;
+	struct reftable_reader *reader;
+	int err;
+
+	writer = reftable_new_writer(&strbuf_add_void, &noop_flush, &writer_buf, &opts);
+	reftable_writer_set_limits(writer, 1, 1);
+	for (size_t i = 0; i < 200; i++) {
+		struct reftable_ref_record ref = {
+			.update_index = 1,
+			.value_type = REFTABLE_REF_VAL1,
+			.value.val1 = {i},
+		};
+
+		strbuf_reset(&buf);
+		strbuf_addf(&buf, "refs/heads/%03" PRIuMAX, (uintmax_t)i);
+		ref.refname = buf.buf,
+
+		err = reftable_writer_add_ref(writer, &ref);
+		EXPECT_ERR(err);
+	}
+	reftable_writer_close(writer);
+
+	/*
+	 * The written refs should be sufficiently large to result in a
+	 * multi-level index.
+	 */
+	stats = reftable_writer_stats(writer);
+	EXPECT(stats->ref_stats.max_index_level == 2);
+
+	block_source_from_strbuf(&source, &writer_buf);
+	err = reftable_new_reader(&reader, &source, "filename");
+	EXPECT_ERR(err);
+
+	/*
+	 * Seeking the last ref should work as expected.
+	 */
+	err = reftable_reader_seek_ref(reader, &it, "refs/heads/199");
+	EXPECT_ERR(err);
+
+	reftable_iterator_destroy(&it);
+	reftable_writer_free(writer);
+	reftable_reader_free(reader);
+	strbuf_release(&writer_buf);
+	strbuf_release(&buf);
+}
+
 static void test_corrupt_table_empty(void)
 {
 	struct strbuf buf = STRBUF_INIT;
@@ -846,5 +972,7 @@
 	RUN_TEST(test_log_overflow);
 	RUN_TEST(test_write_object_id_length);
 	RUN_TEST(test_write_object_id_min_length);
+	RUN_TEST(test_write_multiple_indices);
+	RUN_TEST(test_write_multi_level_index);
 	return 0;
 }
diff --git a/reftable/record.c b/reftable/record.c
index fbaa1fb..26c5e43 100644
--- a/reftable/record.c
+++ b/reftable/record.c
@@ -76,7 +76,7 @@
 	return 0;
 }
 
-uint8_t *reftable_ref_record_val1(const struct reftable_ref_record *rec)
+const unsigned char *reftable_ref_record_val1(const struct reftable_ref_record *rec)
 {
 	switch (rec->value_type) {
 	case REFTABLE_REF_VAL1:
@@ -88,7 +88,7 @@
 	}
 }
 
-uint8_t *reftable_ref_record_val2(const struct reftable_ref_record *rec)
+const unsigned char *reftable_ref_record_val2(const struct reftable_ref_record *rec)
 {
 	switch (rec->value_type) {
 	case REFTABLE_REF_VAL2:
@@ -219,13 +219,10 @@
 	case REFTABLE_REF_DELETION:
 		break;
 	case REFTABLE_REF_VAL1:
-		ref->value.val1 = reftable_malloc(hash_size);
 		memcpy(ref->value.val1, src->value.val1, hash_size);
 		break;
 	case REFTABLE_REF_VAL2:
-		ref->value.val2.value = reftable_malloc(hash_size);
 		memcpy(ref->value.val2.value, src->value.val2.value, hash_size);
-		ref->value.val2.target_value = reftable_malloc(hash_size);
 		memcpy(ref->value.val2.target_value,
 		       src->value.val2.target_value, hash_size);
 		break;
@@ -242,7 +239,7 @@
 	return 'a' + (c - 10);
 }
 
-static void hex_format(char *dest, uint8_t *src, int hash_size)
+static void hex_format(char *dest, const unsigned char *src, int hash_size)
 {
 	assert(hash_size > 0);
 	if (src) {
@@ -299,11 +296,8 @@
 		reftable_free(ref->value.symref);
 		break;
 	case REFTABLE_REF_VAL2:
-		reftable_free(ref->value.val2.target_value);
-		reftable_free(ref->value.val2.value);
 		break;
 	case REFTABLE_REF_VAL1:
-		reftable_free(ref->value.val1);
 		break;
 	case REFTABLE_REF_DELETION:
 		break;
@@ -394,7 +388,6 @@
 			return -1;
 		}
 
-		r->value.val1 = reftable_malloc(hash_size);
 		memcpy(r->value.val1, in.buf, hash_size);
 		string_view_consume(&in, hash_size);
 		break;
@@ -404,11 +397,9 @@
 			return -1;
 		}
 
-		r->value.val2.value = reftable_malloc(hash_size);
 		memcpy(r->value.val2.value, in.buf, hash_size);
 		string_view_consume(&in, hash_size);
 
-		r->value.val2.target_value = reftable_malloc(hash_size);
 		memcpy(r->value.val2.target_value, in.buf, hash_size);
 		string_view_consume(&in, hash_size);
 		break;
@@ -506,12 +497,13 @@
 		(const struct reftable_obj_record *)src_rec;
 
 	reftable_obj_record_release(obj);
-	obj->hash_prefix = reftable_malloc(src->hash_prefix_len);
+
+	REFTABLE_ALLOC_ARRAY(obj->hash_prefix, src->hash_prefix_len);
 	obj->hash_prefix_len = src->hash_prefix_len;
 	if (src->hash_prefix_len)
 		memcpy(obj->hash_prefix, src->hash_prefix, obj->hash_prefix_len);
 
-	obj->offsets = reftable_malloc(src->offset_len * sizeof(uint64_t));
+	REFTABLE_ALLOC_ARRAY(obj->offsets, src->offset_len);
 	obj->offset_len = src->offset_len;
 	COPY_ARRAY(obj->offsets, src->offsets, src->offset_len);
 }
@@ -568,7 +560,8 @@
 	int n = 0;
 	uint64_t last;
 	int j;
-	r->hash_prefix = reftable_malloc(key.len);
+
+	REFTABLE_ALLOC_ARRAY(r->hash_prefix, key.len);
 	memcpy(r->hash_prefix, key.buf, key.len);
 	r->hash_prefix_len = key.len;
 
@@ -586,7 +579,7 @@
 	if (count == 0)
 		return start.len - in.len;
 
-	r->offsets = reftable_malloc(count * sizeof(uint64_t));
+	REFTABLE_ALLOC_ARRAY(r->offsets, count);
 	r->offset_len = count;
 
 	n = get_var_int(&r->offsets[0], &in);
@@ -724,12 +717,12 @@
 		}
 
 		if (dst->value.update.new_hash) {
-			dst->value.update.new_hash = reftable_malloc(hash_size);
+			REFTABLE_ALLOC_ARRAY(dst->value.update.new_hash, hash_size);
 			memcpy(dst->value.update.new_hash,
 			       src->value.update.new_hash, hash_size);
 		}
 		if (dst->value.update.old_hash) {
-			dst->value.update.old_hash = reftable_malloc(hash_size);
+			REFTABLE_ALLOC_ARRAY(dst->value.update.old_hash, hash_size);
 			memcpy(dst->value.update.old_hash,
 			       src->value.update.old_hash, hash_size);
 		}
@@ -1164,7 +1157,7 @@
 		reftable_record_data(a), reftable_record_data(b), hash_size);
 }
 
-static int hash_equal(uint8_t *a, uint8_t *b, int hash_size)
+static int hash_equal(const unsigned char *a, const unsigned char *b, int hash_size)
 {
 	if (a && b)
 		return !memcmp(a, b, hash_size);
@@ -1266,45 +1259,22 @@
 	abort();
 }
 
-struct reftable_record reftable_new_record(uint8_t typ)
+void reftable_record_init(struct reftable_record *rec, uint8_t typ)
 {
-	struct reftable_record clean = {
-		.type = typ,
-	};
+	memset(rec, 0, sizeof(*rec));
+	rec->type = typ;
 
-	/* the following is involved, but the naive solution (just return
-	 * `clean` as is, except for BLOCK_TYPE_INDEX), returns a garbage
-	 * clean.u.obj.offsets pointer on Windows VS CI.  Go figure.
-	 */
 	switch (typ) {
-	case BLOCK_TYPE_OBJ:
-	{
-		struct reftable_obj_record obj = { 0 };
-		clean.u.obj = obj;
-		break;
-	}
-	case BLOCK_TYPE_INDEX:
-	{
-		struct reftable_index_record idx = {
-			.last_key = STRBUF_INIT,
-		};
-		clean.u.idx = idx;
-		break;
-	}
 	case BLOCK_TYPE_REF:
-	{
-		struct reftable_ref_record ref = { 0 };
-		clean.u.ref = ref;
-		break;
-	}
 	case BLOCK_TYPE_LOG:
-	{
-		struct reftable_log_record log = { 0 };
-		clean.u.log = log;
-		break;
+	case BLOCK_TYPE_OBJ:
+		return;
+	case BLOCK_TYPE_INDEX:
+		strbuf_init(&rec->u.idx.last_key, 0);
+		return;
+	default:
+		BUG("unhandled record type");
 	}
-	}
-	return clean;
 }
 
 void reftable_record_print(struct reftable_record *rec, int hash_size)
diff --git a/reftable/record.h b/reftable/record.h
index fd80cd4..e64ed30 100644
--- a/reftable/record.h
+++ b/reftable/record.h
@@ -69,9 +69,6 @@
 /* returns true for recognized block types. Block start with the block type. */
 int reftable_is_block_type(uint8_t typ);
 
-/* return an initialized record for the given type */
-struct reftable_record reftable_new_record(uint8_t typ);
-
 /* Encode `key` into `dest`. Sets `is_restart` to indicate a restart. Returns
  * number of bytes written. */
 int reftable_encode_key(int *is_restart, struct string_view dest,
@@ -100,8 +97,8 @@
 /* record is a generic wrapper for different types of records. It is normally
  * created on the stack, or embedded within another struct. If the type is
  * known, a fresh instance can be initialized explicitly. Otherwise, use
- * reftable_new_record() to initialize generically (as the index_record is not
- * valid as 0-initialized structure)
+ * `reftable_record_init()` to initialize generically (as the index_record is
+ * not valid as 0-initialized structure)
  */
 struct reftable_record {
 	uint8_t type;
@@ -113,6 +110,9 @@
 	} u;
 };
 
+/* Initialize the reftable record for the given type */
+void reftable_record_init(struct reftable_record *rec, uint8_t typ);
+
 /* see struct record_vtable */
 int reftable_record_equal(struct reftable_record *a, struct reftable_record *b, int hash_size);
 void reftable_record_print(struct reftable_record *rec, int hash_size);
diff --git a/reftable/record_test.c b/reftable/record_test.c
index 70ae78f..a86cff5 100644
--- a/reftable/record_test.c
+++ b/reftable/record_test.c
@@ -16,11 +16,11 @@
 
 static void test_copy(struct reftable_record *rec)
 {
-	struct reftable_record copy = { 0 };
+	struct reftable_record copy;
 	uint8_t typ;
 
 	typ = reftable_record_type(rec);
-	copy = reftable_new_record(typ);
+	reftable_record_init(&copy, typ);
 	reftable_record_copy_from(&copy, rec, GIT_SHA1_RAWSZ);
 	/* do it twice to catch memory leaks */
 	reftable_record_copy_from(&copy, rec, GIT_SHA1_RAWSZ);
@@ -119,15 +119,10 @@
 		case REFTABLE_REF_DELETION:
 			break;
 		case REFTABLE_REF_VAL1:
-			in.u.ref.value.val1 = reftable_malloc(GIT_SHA1_RAWSZ);
 			set_hash(in.u.ref.value.val1, 1);
 			break;
 		case REFTABLE_REF_VAL2:
-			in.u.ref.value.val2.value =
-				reftable_malloc(GIT_SHA1_RAWSZ);
 			set_hash(in.u.ref.value.val2.value, 1);
-			in.u.ref.value.val2.target_value =
-				reftable_malloc(GIT_SHA1_RAWSZ);
 			set_hash(in.u.ref.value.val2.target_value, 2);
 			break;
 		case REFTABLE_REF_SYMREF:
@@ -236,8 +231,8 @@
 				.value_type = REFTABLE_LOG_UPDATE,
 				.value = {
 					.update = {
-						.new_hash = reftable_calloc(GIT_SHA1_RAWSZ),
-						.old_hash = reftable_calloc(GIT_SHA1_RAWSZ),
+						.new_hash = reftable_calloc(GIT_SHA1_RAWSZ, 1),
+						.old_hash = reftable_calloc(GIT_SHA1_RAWSZ, 1),
 						.name = xstrdup("old name"),
 						.email = xstrdup("old@email"),
 						.message = xstrdup("old message"),
diff --git a/reftable/refname.c b/reftable/refname.c
index 9573496..7570e4a 100644
--- a/reftable/refname.c
+++ b/reftable/refname.c
@@ -140,8 +140,8 @@
 {
 	struct modification mod = {
 		.tab = tab,
-		.add = reftable_calloc(sizeof(char *) * sz),
-		.del = reftable_calloc(sizeof(char *) * sz),
+		.add = reftable_calloc(sz, sizeof(*mod.add)),
+		.del = reftable_calloc(sz, sizeof(*mod.del)),
 	};
 	int i = 0;
 	int err = 0;
diff --git a/reftable/refname_test.c b/reftable/refname_test.c
index 699e1ae..b9cc625 100644
--- a/reftable/refname_test.c
+++ b/reftable/refname_test.c
@@ -30,7 +30,7 @@
 	struct reftable_write_options opts = { 0 };
 	struct strbuf buf = STRBUF_INIT;
 	struct reftable_writer *w =
-		reftable_new_writer(&strbuf_add_void, &buf, &opts);
+		reftable_new_writer(&strbuf_add_void, &noop_flush, &buf, &opts);
 	struct reftable_ref_record rec = {
 		.refname = "a/b",
 		.value_type = REFTABLE_REF_SYMREF,
diff --git a/reftable/reftable-merged.h b/reftable/reftable-merged.h
index 1a6d169..c91a2d8 100644
--- a/reftable/reftable-merged.h
+++ b/reftable/reftable-merged.h
@@ -33,7 +33,7 @@
    the stack array.
 */
 int reftable_new_merged_table(struct reftable_merged_table **dest,
-			      struct reftable_table *stack, int n,
+			      struct reftable_table *stack, size_t n,
 			      uint32_t hash_id);
 
 /* returns an iterator positioned just before 'name' */
diff --git a/reftable/reftable-record.h b/reftable/reftable-record.h
index 67104f8..bb6e99a 100644
--- a/reftable/reftable-record.h
+++ b/reftable/reftable-record.h
@@ -9,6 +9,7 @@
 #ifndef REFTABLE_RECORD_H
 #define REFTABLE_RECORD_H
 
+#include "hash-ll.h"
 #include <stdint.h>
 
 /*
@@ -38,10 +39,10 @@
 #define REFTABLE_NR_REF_VALUETYPES 4
 	} value_type;
 	union {
-		uint8_t *val1; /* malloced hash. */
+		unsigned char val1[GIT_MAX_RAWSZ];
 		struct {
-			uint8_t *value; /* first value, malloced hash  */
-			uint8_t *target_value; /* second value, malloced hash */
+			unsigned char value[GIT_MAX_RAWSZ]; /* first hash  */
+			unsigned char target_value[GIT_MAX_RAWSZ]; /* second hash */
 		} val2;
 		char *symref; /* referent, malloced 0-terminated string */
 	} value;
@@ -49,11 +50,11 @@
 
 /* Returns the first hash, or NULL if `rec` is not of type
  * REFTABLE_REF_VAL1 or REFTABLE_REF_VAL2. */
-uint8_t *reftable_ref_record_val1(const struct reftable_ref_record *rec);
+const unsigned char *reftable_ref_record_val1(const struct reftable_ref_record *rec);
 
 /* Returns the second hash, or NULL if `rec` is not of type
  * REFTABLE_REF_VAL2. */
-uint8_t *reftable_ref_record_val2(const struct reftable_ref_record *rec);
+const unsigned char *reftable_ref_record_val2(const struct reftable_ref_record *rec);
 
 /* returns whether 'ref' represents a deletion */
 int reftable_ref_record_is_deletion(const struct reftable_ref_record *ref);
diff --git a/reftable/reftable-writer.h b/reftable/reftable-writer.h
index db8de19..7c7cae5 100644
--- a/reftable/reftable-writer.h
+++ b/reftable/reftable-writer.h
@@ -88,6 +88,7 @@
 /* reftable_new_writer creates a new writer */
 struct reftable_writer *
 reftable_new_writer(ssize_t (*writer_func)(void *, const void *, size_t),
+		    int (*flush_func)(void *),
 		    void *writer_arg, struct reftable_write_options *opts);
 
 /* Set the range of update indices for the records we will add. When writing a
diff --git a/reftable/stack.c b/reftable/stack.c
index 16bab82..b64e556 100644
--- a/reftable/stack.c
+++ b/reftable/stack.c
@@ -8,6 +8,7 @@
 
 #include "stack.h"
 
+#include "../write-or-die.h"
 #include "system.h"
 #include "merged.h"
 #include "reader.h"
@@ -16,7 +17,6 @@
 #include "reftable-record.h"
 #include "reftable-merged.h"
 #include "writer.h"
-
 #include "tempfile.h"
 
 static int stack_try_add(struct reftable_stack *st,
@@ -24,7 +24,8 @@
 					    void *arg),
 			 void *arg);
 static int stack_write_compact(struct reftable_stack *st,
-			       struct reftable_writer *wr, int first, int last,
+			       struct reftable_writer *wr,
+			       size_t first, size_t last,
 			       struct reftable_log_expiry_config *config);
 static int stack_check_addition(struct reftable_stack *st,
 				const char *new_tab_name);
@@ -47,11 +48,17 @@
 	return write_in_full(*fdp, data, sz);
 }
 
+static int reftable_fd_flush(void *arg)
+{
+	int *fdp = (int *)arg;
+
+	return fsync_component(FSYNC_COMPONENT_REFERENCE, *fdp);
+}
+
 int reftable_new_stack(struct reftable_stack **dest, const char *dir,
 		       struct reftable_write_options config)
 {
-	struct reftable_stack *p =
-		reftable_calloc(sizeof(struct reftable_stack));
+	struct reftable_stack *p = reftable_calloc(1, sizeof(*p));
 	struct strbuf list_file_name = STRBUF_INIT;
 	int err = 0;
 
@@ -66,6 +73,7 @@
 	strbuf_addstr(&list_file_name, "/tables.list");
 
 	p->list_file = strbuf_detach(&list_file_name, NULL);
+	p->list_fd = -1;
 	p->reftable_dir = xstrdup(dir);
 	p->config = config;
 
@@ -93,7 +101,7 @@
 		goto done;
 	}
 
-	buf = reftable_malloc(size + 1);
+	REFTABLE_ALLOC_ARRAY(buf, size + 1);
 	if (read_in_full(fd, buf, size) != size) {
 		err = REFTABLE_IO_ERROR;
 		goto done;
@@ -113,7 +121,7 @@
 	int err = 0;
 	if (fd < 0) {
 		if (errno == ENOENT) {
-			*namesp = reftable_calloc(sizeof(char *));
+			REFTABLE_CALLOC_ARRAY(*namesp, 1);
 			return 0;
 		}
 
@@ -175,6 +183,12 @@
 		st->readers_len = 0;
 		FREE_AND_NULL(st->readers);
 	}
+
+	if (st->list_fd >= 0) {
+		close(st->list_fd);
+		st->list_fd = -1;
+	}
+
 	FREE_AND_NULL(st->list_file);
 	FREE_AND_NULL(st->reftable_dir);
 	reftable_free(st);
@@ -184,8 +198,7 @@
 static struct reftable_reader **stack_copy_readers(struct reftable_stack *st,
 						   int cur_len)
 {
-	struct reftable_reader **cur =
-		reftable_calloc(sizeof(struct reftable_reader *) * cur_len);
+	struct reftable_reader **cur = reftable_calloc(cur_len, sizeof(*cur));
 	int i = 0;
 	for (i = 0; i < cur_len; i++) {
 		cur[i] = st->readers[i];
@@ -196,18 +209,18 @@
 static int reftable_stack_reload_once(struct reftable_stack *st, char **names,
 				      int reuse_open)
 {
-	int cur_len = !st->merged ? 0 : st->merged->stack_len;
+	size_t cur_len = !st->merged ? 0 : st->merged->stack_len;
 	struct reftable_reader **cur = stack_copy_readers(st, cur_len);
-	int err = 0;
-	int names_len = names_length(names);
+	size_t names_len = names_length(names);
 	struct reftable_reader **new_readers =
-		reftable_calloc(sizeof(struct reftable_reader *) * names_len);
+		reftable_calloc(names_len, sizeof(*new_readers));
 	struct reftable_table *new_tables =
-		reftable_calloc(sizeof(struct reftable_table) * names_len);
-	int new_readers_len = 0;
+		reftable_calloc(names_len, sizeof(*new_tables));
+	size_t new_readers_len = 0;
 	struct reftable_merged_table *new_merged = NULL;
 	struct strbuf table_path = STRBUF_INIT;
-	int i;
+	int err = 0;
+	size_t i;
 
 	while (*names) {
 		struct reftable_reader *rd = NULL;
@@ -215,11 +228,10 @@
 
 		/* this is linear; we assume compaction keeps the number of
 		   tables under control so this is not quadratic. */
-		int j = 0;
-		for (j = 0; reuse_open && j < cur_len; j++) {
-			if (cur[j] && 0 == strcmp(cur[j]->name, name)) {
-				rd = cur[j];
-				cur[j] = NULL;
+		for (i = 0; reuse_open && i < cur_len; i++) {
+			if (cur[i] && 0 == strcmp(cur[i]->name, name)) {
+				rd = cur[i];
+				cur[i] = NULL;
 				break;
 			}
 		}
@@ -304,69 +316,134 @@
 static int reftable_stack_reload_maybe_reuse(struct reftable_stack *st,
 					     int reuse_open)
 {
-	struct timeval deadline = { 0 };
-	int err = gettimeofday(&deadline, NULL);
+	char **names = NULL, **names_after = NULL;
+	struct timeval deadline;
 	int64_t delay = 0;
-	int tries = 0;
+	int tries = 0, err;
+	int fd = -1;
+
+	err = gettimeofday(&deadline, NULL);
 	if (err < 0)
-		return err;
-
+		goto out;
 	deadline.tv_sec += 3;
+
 	while (1) {
-		char **names = NULL;
-		char **names_after = NULL;
-		struct timeval now = { 0 };
-		int err = gettimeofday(&now, NULL);
-		int err2 = 0;
-		if (err < 0) {
-			return err;
-		}
+		struct timeval now;
 
-		/* Only look at deadlines after the first few times. This
-		   simplifies debugging in GDB */
+		err = gettimeofday(&now, NULL);
+		if (err < 0)
+			goto out;
+
+		/*
+		 * Only look at deadlines after the first few times. This
+		 * simplifies debugging in GDB.
+		 */
 		tries++;
-		if (tries > 3 && tv_cmp(&now, &deadline) >= 0) {
-			break;
+		if (tries > 3 && tv_cmp(&now, &deadline) >= 0)
+			goto out;
+
+		fd = open(st->list_file, O_RDONLY);
+		if (fd < 0) {
+			if (errno != ENOENT) {
+				err = REFTABLE_IO_ERROR;
+				goto out;
+			}
+
+			REFTABLE_CALLOC_ARRAY(names, 1);
+		} else {
+			err = fd_read_lines(fd, &names);
+			if (err < 0)
+				goto out;
 		}
 
-		err = read_lines(st->list_file, &names);
-		if (err < 0) {
-			free_names(names);
-			return err;
-		}
 		err = reftable_stack_reload_once(st, names, reuse_open);
-		if (err == 0) {
-			free_names(names);
+		if (!err)
 			break;
-		}
-		if (err != REFTABLE_NOT_EXIST_ERROR) {
-			free_names(names);
-			return err;
-		}
+		if (err != REFTABLE_NOT_EXIST_ERROR)
+			goto out;
 
-		/* err == REFTABLE_NOT_EXIST_ERROR can be caused by a concurrent
-		   writer. Check if there was one by checking if the name list
-		   changed.
-		*/
-		err2 = read_lines(st->list_file, &names_after);
-		if (err2 < 0) {
-			free_names(names);
-			return err2;
-		}
-
+		/*
+		 * REFTABLE_NOT_EXIST_ERROR can be caused by a concurrent
+		 * writer. Check if there was one by checking if the name list
+		 * changed.
+		 */
+		err = read_lines(st->list_file, &names_after);
+		if (err < 0)
+			goto out;
 		if (names_equal(names_after, names)) {
-			free_names(names);
-			free_names(names_after);
-			return err;
+			err = REFTABLE_NOT_EXIST_ERROR;
+			goto out;
 		}
+
 		free_names(names);
+		names = NULL;
 		free_names(names_after);
+		names_after = NULL;
+		close(fd);
+		fd = -1;
 
 		delay = delay + (delay * rand()) / RAND_MAX + 1;
 		sleep_millisec(delay);
 	}
 
-	return 0;
+out:
+	/*
+	 * Invalidate the stat cache. It is sufficient to only close the file
+	 * descriptor and keep the cached stat info because we never use the
+	 * latter when the former is negative.
+	 */
+	if (st->list_fd >= 0) {
+		close(st->list_fd);
+		st->list_fd = -1;
+	}
+
+	/*
+	 * Cache stat information in case it provides a useful signal to us.
+	 * According to POSIX, "The st_ino and st_dev fields taken together
+	 * uniquely identify the file within the system." That being said,
+	 * Windows is not POSIX compliant and we do not have these fields
+	 * available. So the information we have there is insufficient to
+	 * determine whether two file descriptors point to the same file.
+	 *
+	 * While we could fall back to using other signals like the file's
+	 * mtime, those are not sufficient to avoid races. We thus refrain from
+	 * using the stat cache on such systems and fall back to the secondary
+	 * caching mechanism, which is to check whether contents of the file
+	 * have changed.
+	 *
+	 * On other systems which are POSIX compliant we must keep the file
+	 * descriptor open. This is to avoid a race condition where two
+	 * processes access the reftable stack at the same point in time:
+	 *
+	 *   1. A reads the reftable stack and caches its stat info.
+	 *
+	 *   2. B updates the stack, appending a new table to "tables.list".
+	 *      This will both use a new inode and result in a different file
+	 *      size, thus invalidating A's cache in theory.
+	 *
+	 *   3. B decides to auto-compact the stack and merges two tables. The
+	 *      file size now matches what A has cached again. Furthermore, the
+	 *      filesystem may decide to recycle the inode number of the file
+	 *      we have replaced in (2) because it is not in use anymore.
+	 *
+	 *   4. A reloads the reftable stack. Neither the inode number nor the
+	 *      file size changed. If the timestamps did not change either then
+	 *      we think the cached copy of our stack is up-to-date.
+	 *
+	 * By keeping the file descriptor open the inode number cannot be
+	 * recycled, mitigating the race.
+	 */
+	if (!err && fd >= 0 && !fstat(fd, &st->list_st) &&
+	    st->list_st.st_dev && st->list_st.st_ino) {
+		st->list_fd = fd;
+		fd = -1;
+	}
+
+	if (fd >= 0)
+		close(fd);
+	free_names(names);
+	free_names(names_after);
+	return err;
 }
 
 /* -1 = error
@@ -375,8 +452,44 @@
 static int stack_uptodate(struct reftable_stack *st)
 {
 	char **names = NULL;
-	int err = read_lines(st->list_file, &names);
+	int err;
 	int i = 0;
+
+	/*
+	 * When we have cached stat information available then we use it to
+	 * verify whether the file has been rewritten.
+	 *
+	 * Note that we explicitly do not want to use `stat_validity_check()`
+	 * and friends here because they may end up not comparing the `st_dev`
+	 * and `st_ino` fields. These functions thus cannot guarantee that we
+	 * indeed still have the same file.
+	 */
+	if (st->list_fd >= 0) {
+		struct stat list_st;
+
+		if (stat(st->list_file, &list_st) < 0) {
+			/*
+			 * It's fine for "tables.list" to not exist. In that
+			 * case, we have to refresh when the loaded stack has
+			 * any readers.
+			 */
+			if (errno == ENOENT)
+				return !!st->readers_len;
+			return REFTABLE_IO_ERROR;
+		}
+
+		/*
+		 * When "tables.list" refers to the same file we can assume
+		 * that it didn't change. This is because we always use
+		 * rename(3P) to update the file and never write to it
+		 * directly.
+		 */
+		if (st->list_st.st_dev == list_st.st_dev &&
+		    st->list_st.st_ino == list_st.st_ino)
+			return 0;
+	}
+
+	err = read_lines(st->list_file, &names);
 	if (err < 0)
 		return err;
 
@@ -425,9 +538,6 @@
 		return err;
 	}
 
-	if (!st->disable_auto_compact)
-		return reftable_stack_auto_compact(st);
-
 	return 0;
 }
 
@@ -446,7 +556,7 @@
 	struct reftable_stack *stack;
 
 	char **new_tables;
-	int new_tables_len;
+	size_t new_tables_len, new_tables_cap;
 	uint64_t next_update_index;
 };
 
@@ -497,8 +607,9 @@
 
 static void reftable_addition_close(struct reftable_addition *add)
 {
-	int i = 0;
 	struct strbuf nm = STRBUF_INIT;
+	size_t i;
+
 	for (i = 0; i < add->new_tables_len; i++) {
 		stack_filename(&nm, add->stack, add->new_tables[i]);
 		unlink(nm.buf);
@@ -508,6 +619,7 @@
 	reftable_free(add->new_tables);
 	add->new_tables = NULL;
 	add->new_tables_len = 0;
+	add->new_tables_cap = 0;
 
 	delete_tempfile(&add->lock_file);
 	strbuf_release(&nm);
@@ -526,8 +638,8 @@
 {
 	struct strbuf table_list = STRBUF_INIT;
 	int lock_file_fd = get_tempfile_fd(add->lock_file);
-	int i = 0;
 	int err = 0;
+	size_t i;
 
 	if (add->new_tables_len == 0)
 		goto done;
@@ -548,6 +660,9 @@
 		goto done;
 	}
 
+	fsync_component_or_die(FSYNC_COMPONENT_REFERENCE, lock_file_fd,
+			       get_tempfile_path(add->lock_file));
+
 	err = rename_tempfile(&add->lock_file, add->stack->list_file);
 	if (err < 0) {
 		err = REFTABLE_IO_ERROR;
@@ -555,14 +670,14 @@
 	}
 
 	/* success, no more state to clean up. */
-	for (i = 0; i < add->new_tables_len; i++) {
+	for (i = 0; i < add->new_tables_len; i++)
 		reftable_free(add->new_tables[i]);
-	}
 	reftable_free(add->new_tables);
 	add->new_tables = NULL;
 	add->new_tables_len = 0;
+	add->new_tables_cap = 0;
 
-	err = reftable_stack_reload(add->stack);
+	err = reftable_stack_reload_maybe_reuse(add->stack, 1);
 	if (err)
 		goto done;
 
@@ -579,7 +694,7 @@
 {
 	int err = 0;
 	struct reftable_addition empty = REFTABLE_ADDITION_INIT;
-	*dest = reftable_calloc(sizeof(**dest));
+	REFTABLE_CALLOC_ARRAY(*dest, 1);
 	**dest = empty;
 	err = reftable_stack_init_addition(*dest, st);
 	if (err) {
@@ -642,7 +757,7 @@
 			goto done;
 		}
 	}
-	wr = reftable_new_writer(reftable_fd_write, &tab_fd,
+	wr = reftable_new_writer(reftable_fd_write, reftable_fd_flush, &tab_fd,
 				 &add->stack->config);
 	err = write_table(wr, arg);
 	if (err < 0)
@@ -687,11 +802,9 @@
 		goto done;
 	}
 
-	add->new_tables = reftable_realloc(add->new_tables,
-					   sizeof(*add->new_tables) *
-						   (add->new_tables_len + 1));
-	add->new_tables[add->new_tables_len] = strbuf_detach(&next_name, NULL);
-	add->new_tables_len++;
+	REFTABLE_ALLOC_GROW(add->new_tables, add->new_tables_len + 1,
+			    add->new_tables_cap);
+	add->new_tables[add->new_tables_len++] = strbuf_detach(&next_name, NULL);
 done:
 	if (tab_fd > 0) {
 		close(tab_fd);
@@ -717,7 +830,8 @@
 	return 1;
 }
 
-static int stack_compact_locked(struct reftable_stack *st, int first, int last,
+static int stack_compact_locked(struct reftable_stack *st,
+				size_t first, size_t last,
 				struct strbuf *temp_tab,
 				struct reftable_log_expiry_config *config)
 {
@@ -734,7 +848,13 @@
 	strbuf_addstr(temp_tab, ".temp.XXXXXX");
 
 	tab_fd = mkstemp(temp_tab->buf);
-	wr = reftable_new_writer(reftable_fd_write, &tab_fd, &st->config);
+	if (st->config.default_permissions &&
+	    chmod(temp_tab->buf, st->config.default_permissions) < 0) {
+		err = REFTABLE_IO_ERROR;
+		goto done;
+	}
+
+	wr = reftable_new_writer(reftable_fd_write, reftable_fd_flush, &tab_fd, &st->config);
 
 	err = stack_write_compact(st, wr, first, last, config);
 	if (err < 0)
@@ -761,22 +881,21 @@
 }
 
 static int stack_write_compact(struct reftable_stack *st,
-			       struct reftable_writer *wr, int first, int last,
+			       struct reftable_writer *wr,
+			       size_t first, size_t last,
 			       struct reftable_log_expiry_config *config)
 {
-	int subtabs_len = last - first + 1;
+	size_t subtabs_len = last - first + 1;
 	struct reftable_table *subtabs = reftable_calloc(
-		sizeof(struct reftable_table) * (last - first + 1));
+		last - first + 1, sizeof(*subtabs));
 	struct reftable_merged_table *mt = NULL;
-	int err = 0;
 	struct reftable_iterator it = { NULL };
 	struct reftable_ref_record ref = { NULL };
 	struct reftable_log_record log = { NULL };
-
 	uint64_t entries = 0;
+	int err = 0;
 
-	int i = 0, j = 0;
-	for (i = first, j = 0; i <= last; i++) {
+	for (size_t i = first, j = 0; i <= last; i++) {
 		struct reftable_reader *t = st->readers[i];
 		reftable_table_from_reader(&subtabs[j++], t);
 		st->stats.bytes += t->size;
@@ -801,18 +920,16 @@
 			err = 0;
 			break;
 		}
-		if (err < 0) {
-			break;
-		}
+		if (err < 0)
+			goto done;
 
 		if (first == 0 && reftable_ref_record_is_deletion(&ref)) {
 			continue;
 		}
 
 		err = reftable_writer_add_ref(wr, &ref);
-		if (err < 0) {
-			break;
-		}
+		if (err < 0)
+			goto done;
 		entries++;
 	}
 	reftable_iterator_destroy(&it);
@@ -827,9 +944,8 @@
 			err = 0;
 			break;
 		}
-		if (err < 0) {
-			break;
-		}
+		if (err < 0)
+			goto done;
 		if (first == 0 && reftable_log_record_is_deletion(&log)) {
 			continue;
 		}
@@ -845,9 +961,8 @@
 		}
 
 		err = reftable_writer_add_log(wr, &log);
-		if (err < 0) {
-			break;
-		}
+		if (err < 0)
+			goto done;
 		entries++;
 	}
 
@@ -864,25 +979,20 @@
 }
 
 /* <  0: error. 0 == OK, > 0 attempt failed; could retry. */
-static int stack_compact_range(struct reftable_stack *st, int first, int last,
+static int stack_compact_range(struct reftable_stack *st,
+			       size_t first, size_t last,
 			       struct reftable_log_expiry_config *expiry)
 {
+	char **delete_on_success = NULL, **subtable_locks = NULL, **listp = NULL;
 	struct strbuf temp_tab_file_name = STRBUF_INIT;
 	struct strbuf new_table_name = STRBUF_INIT;
 	struct strbuf lock_file_name = STRBUF_INIT;
 	struct strbuf ref_list_contents = STRBUF_INIT;
 	struct strbuf new_table_path = STRBUF_INIT;
+	size_t i, j, compact_count;
 	int err = 0;
 	int have_lock = 0;
 	int lock_file_fd = -1;
-	int compact_count = last - first + 1;
-	char **listp = NULL;
-	char **delete_on_success =
-		reftable_calloc(sizeof(char *) * (compact_count + 1));
-	char **subtable_locks =
-		reftable_calloc(sizeof(char *) * (compact_count + 1));
-	int i = 0;
-	int j = 0;
 	int is_empty_table = 0;
 
 	if (first > last || (!expiry && first == last)) {
@@ -890,6 +1000,10 @@
 		goto done;
 	}
 
+	compact_count = last - first + 1;
+	REFTABLE_CALLOC_ARRAY(delete_on_success, compact_count + 1);
+	REFTABLE_CALLOC_ARRAY(subtable_locks, compact_count + 1);
+
 	st->stats.attempts++;
 
 	strbuf_reset(&lock_file_name);
@@ -1015,6 +1129,14 @@
 		unlink(new_table_path.buf);
 		goto done;
 	}
+
+	err = fsync_component(FSYNC_COMPONENT_REFERENCE, lock_file_fd);
+	if (err < 0) {
+		err = REFTABLE_IO_ERROR;
+		unlink(new_table_path.buf);
+		goto done;
+	}
+
 	err = close(lock_file_fd);
 	lock_file_fd = -1;
 	if (err < 0) {
@@ -1047,12 +1169,14 @@
 done:
 	free_names(delete_on_success);
 
-	listp = subtable_locks;
-	while (*listp) {
-		unlink(*listp);
-		listp++;
+	if (subtable_locks) {
+		listp = subtable_locks;
+		while (*listp) {
+			unlink(*listp);
+			listp++;
+		}
+		free_names(subtable_locks);
 	}
-	free_names(subtable_locks);
 	if (lock_file_fd >= 0) {
 		close(lock_file_fd);
 		lock_file_fd = -1;
@@ -1071,17 +1195,17 @@
 int reftable_stack_compact_all(struct reftable_stack *st,
 			       struct reftable_log_expiry_config *config)
 {
-	return stack_compact_range(st, 0, st->merged->stack_len - 1, config);
+	return stack_compact_range(st, 0, st->merged->stack_len ?
+			st->merged->stack_len - 1 : 0, config);
 }
 
-static int stack_compact_range_stats(struct reftable_stack *st, int first,
-				     int last,
+static int stack_compact_range_stats(struct reftable_stack *st,
+				     size_t first, size_t last,
 				     struct reftable_log_expiry_config *config)
 {
 	int err = stack_compact_range(st, first, last, config);
-	if (err > 0) {
+	if (err > 0)
 		st->stats.failures++;
-	}
 	return err;
 }
 
@@ -1101,12 +1225,11 @@
 	return l - 1;
 }
 
-struct segment *sizes_to_segments(int *seglen, uint64_t *sizes, int n)
+struct segment *sizes_to_segments(size_t *seglen, uint64_t *sizes, size_t n)
 {
-	struct segment *segs = reftable_calloc(sizeof(struct segment) * n);
-	int next = 0;
+	struct segment *segs = reftable_calloc(n, sizeof(*segs));
 	struct segment cur = { 0 };
-	int i = 0;
+	size_t next = 0, i;
 
 	if (n == 0) {
 		*seglen = 0;
@@ -1132,29 +1255,27 @@
 	return segs;
 }
 
-struct segment suggest_compaction_segment(uint64_t *sizes, int n)
+struct segment suggest_compaction_segment(uint64_t *sizes, size_t n)
 {
-	int seglen = 0;
-	struct segment *segs = sizes_to_segments(&seglen, sizes, n);
 	struct segment min_seg = {
 		.log = 64,
 	};
-	int i = 0;
-	for (i = 0; i < seglen; i++) {
-		if (segment_size(&segs[i]) == 1) {
-			continue;
-		}
+	struct segment *segs;
+	size_t seglen = 0, i;
 
-		if (segs[i].log < min_seg.log) {
+	segs = sizes_to_segments(&seglen, sizes, n);
+	for (i = 0; i < seglen; i++) {
+		if (segment_size(&segs[i]) == 1)
+			continue;
+
+		if (segs[i].log < min_seg.log)
 			min_seg = segs[i];
-		}
 	}
 
 	while (min_seg.start > 0) {
-		int prev = min_seg.start - 1;
-		if (fastlog2(min_seg.bytes) < fastlog2(sizes[prev])) {
+		size_t prev = min_seg.start - 1;
+		if (fastlog2(min_seg.bytes) < fastlog2(sizes[prev]))
 			break;
-		}
 
 		min_seg.start = prev;
 		min_seg.bytes += sizes[prev];
@@ -1167,7 +1288,7 @@
 static uint64_t *stack_table_sizes_for_compaction(struct reftable_stack *st)
 {
 	uint64_t *sizes =
-		reftable_calloc(sizeof(uint64_t) * st->merged->stack_len);
+		reftable_calloc(st->merged->stack_len, sizeof(*sizes));
 	int version = (st->config.hash_id == GIT_SHA1_FORMAT_ID) ? 1 : 2;
 	int overhead = header_size(version) - 1;
 	int i = 0;
@@ -1266,17 +1387,12 @@
 	while (1) {
 		struct reftable_ref_record ref = { NULL };
 		err = reftable_iterator_next_ref(&it, &ref);
-		if (err > 0) {
+		if (err > 0)
 			break;
-		}
 		if (err < 0)
 			goto done;
 
-		if (len >= cap) {
-			cap = 2 * cap + 1;
-			refs = reftable_realloc(refs, cap * sizeof(refs[0]));
-		}
-
+		REFTABLE_ALLOC_GROW(refs, len + 1, cap);
 		refs[len++] = ref;
 	}
 
diff --git a/reftable/stack.h b/reftable/stack.h
index f570058..d919455 100644
--- a/reftable/stack.h
+++ b/reftable/stack.h
@@ -14,7 +14,10 @@
 #include "reftable-stack.h"
 
 struct reftable_stack {
+	struct stat list_st;
 	char *list_file;
+	int list_fd;
+
 	char *reftable_dir;
 	int disable_auto_compact;
 
@@ -29,13 +32,13 @@
 int read_lines(const char *filename, char ***lines);
 
 struct segment {
-	int start, end;
+	size_t start, end;
 	int log;
 	uint64_t bytes;
 };
 
 int fastlog2(uint64_t sz);
-struct segment *sizes_to_segments(int *seglen, uint64_t *sizes, int n);
-struct segment suggest_compaction_segment(uint64_t *sizes, int n);
+struct segment *sizes_to_segments(size_t *seglen, uint64_t *sizes, size_t n);
+struct segment suggest_compaction_segment(uint64_t *sizes, size_t n);
 
 #endif
diff --git a/reftable/stack_test.c b/reftable/stack_test.c
index 82280c2..509f486 100644
--- a/reftable/stack_test.c
+++ b/reftable/stack_test.c
@@ -443,15 +443,16 @@
 	int err = 0;
 	struct reftable_write_options cfg = {
 		.exact_log_message = 1,
+		.default_permissions = 0660,
 	};
 	struct reftable_stack *st = NULL;
 	char *dir = get_tmp_dir(__LINE__);
-
 	struct reftable_ref_record refs[2] = { { NULL } };
 	struct reftable_log_record logs[2] = { { NULL } };
+	struct strbuf path = STRBUF_INIT;
+	struct stat stat_result;
 	int N = ARRAY_SIZE(refs);
 
-
 	err = reftable_new_stack(&st, dir, cfg);
 	EXPECT_ERR(err);
 	st->disable_auto_compact = 1;
@@ -462,7 +463,6 @@
 		refs[i].refname = xstrdup(buf);
 		refs[i].update_index = i + 1;
 		refs[i].value_type = REFTABLE_REF_VAL1;
-		refs[i].value.val1 = reftable_malloc(GIT_SHA1_RAWSZ);
 		set_test_hash(refs[i].value.val1, i);
 
 		logs[i].refname = xstrdup(buf);
@@ -510,12 +510,32 @@
 		reftable_log_record_release(&dest);
 	}
 
+#ifndef GIT_WINDOWS_NATIVE
+	strbuf_addstr(&path, dir);
+	strbuf_addstr(&path, "/tables.list");
+	err = stat(path.buf, &stat_result);
+	EXPECT(!err);
+	EXPECT((stat_result.st_mode & 0777) == cfg.default_permissions);
+
+	strbuf_reset(&path);
+	strbuf_addstr(&path, dir);
+	strbuf_addstr(&path, "/");
+	/* do not try at home; not an external API for reftable. */
+	strbuf_addstr(&path, st->readers[0]->name);
+	err = stat(path.buf, &stat_result);
+	EXPECT(!err);
+	EXPECT((stat_result.st_mode & 0777) == cfg.default_permissions);
+#else
+	(void) stat_result;
+#endif
+
 	/* cleanup */
 	reftable_stack_destroy(st);
 	for (i = 0; i < N; i++) {
 		reftable_ref_record_release(&refs[i]);
 		reftable_log_record_release(&logs[i]);
 	}
+	strbuf_release(&path);
 	clear_dir(dir);
 }
 
@@ -599,7 +619,6 @@
 		refs[i].update_index = i + 1;
 		if (i % 2 == 0) {
 			refs[i].value_type = REFTABLE_REF_VAL1;
-			refs[i].value.val1 = reftable_malloc(GIT_SHA1_RAWSZ);
 			set_test_hash(refs[i].value.val1, i);
 		}
 
@@ -713,7 +732,7 @@
 	uint64_t sizes[] = { 2, 3, 4, 5, 7, 9 };
 	/* .................0  1  2  3  4  5 */
 
-	int seglen = 0;
+	size_t seglen = 0;
 	struct segment *segs =
 		sizes_to_segments(&seglen, sizes, ARRAY_SIZE(sizes));
 	EXPECT(segs[2].log == 3);
@@ -728,7 +747,7 @@
 
 static void test_sizes_to_segments_empty(void)
 {
-	int seglen = 0;
+	size_t seglen = 0;
 	struct segment *segs = sizes_to_segments(&seglen, NULL, 0);
 	EXPECT(seglen == 0);
 	reftable_free(segs);
@@ -737,8 +756,7 @@
 static void test_sizes_to_segments_all_equal(void)
 {
 	uint64_t sizes[] = { 5, 5 };
-
-	int seglen = 0;
+	size_t seglen = 0;
 	struct segment *segs =
 		sizes_to_segments(&seglen, sizes, ARRAY_SIZE(sizes));
 	EXPECT(seglen == 1);
diff --git a/reftable/test_framework.c b/reftable/test_framework.c
index 04044fc..4066924 100644
--- a/reftable/test_framework.c
+++ b/reftable/test_framework.c
@@ -20,3 +20,8 @@
 	strbuf_add(b, data, sz);
 	return sz;
 }
+
+int noop_flush(void *arg)
+{
+	return 0;
+}
diff --git a/reftable/test_framework.h b/reftable/test_framework.h
index ee44f73..687390f 100644
--- a/reftable/test_framework.h
+++ b/reftable/test_framework.h
@@ -56,4 +56,6 @@
  */
 ssize_t strbuf_add_void(void *b, const void *data, size_t sz);
 
+int noop_flush(void *);
+
 #endif
diff --git a/reftable/tree.c b/reftable/tree.c
index a5bf880..528f33a 100644
--- a/reftable/tree.c
+++ b/reftable/tree.c
@@ -20,8 +20,8 @@
 		if (!insert) {
 			return NULL;
 		} else {
-			struct tree_node *n =
-				reftable_calloc(sizeof(struct tree_node));
+			struct tree_node *n;
+			REFTABLE_CALLOC_ARRAY(n, 1);
 			n->key = key;
 			*rootp = n;
 			return *rootp;
diff --git a/reftable/writer.c b/reftable/writer.c
index 2e322a5..1d9ff0f 100644
--- a/reftable/writer.c
+++ b/reftable/writer.c
@@ -49,7 +49,7 @@
 {
 	int n = 0;
 	if (w->pending_padding > 0) {
-		uint8_t *zeroed = reftable_calloc(w->pending_padding);
+		uint8_t *zeroed = reftable_calloc(w->pending_padding, sizeof(*zeroed));
 		int n = w->write(w->write_arg, zeroed, w->pending_padding);
 		if (n < 0)
 			return n;
@@ -121,10 +121,10 @@
 
 struct reftable_writer *
 reftable_new_writer(ssize_t (*writer_func)(void *, const void *, size_t),
+		    int (*flush_func)(void *),
 		    void *writer_arg, struct reftable_write_options *opts)
 {
-	struct reftable_writer *wp =
-		reftable_calloc(sizeof(struct reftable_writer));
+	struct reftable_writer *wp = reftable_calloc(1, sizeof(*wp));
 	strbuf_init(&wp->block_writer_data.last_key, 0);
 	options_set_defaults(opts);
 	if (opts->block_size >= (1 << 24)) {
@@ -132,10 +132,11 @@
 		abort();
 	}
 	wp->last_key = reftable_empty_strbuf;
-	wp->block = reftable_calloc(opts->block_size);
+	REFTABLE_CALLOC_ARRAY(wp->block, opts->block_size);
 	wp->write = writer_func;
 	wp->write_arg = writer_arg;
 	wp->opts = *opts;
+	wp->flush = flush_func;
 	writer_reinit_block_writer(wp, BLOCK_TYPE_REF);
 
 	return wp;
@@ -200,12 +201,7 @@
 		return;
 	}
 
-	if (key->offset_len == key->offset_cap) {
-		key->offset_cap = 2 * key->offset_cap + 1;
-		key->offsets = reftable_realloc(
-			key->offsets, sizeof(uint64_t) * key->offset_cap);
-	}
-
+	REFTABLE_ALLOC_GROW(key->offsets, key->offset_len + 1, key->offset_cap);
 	key->offsets[key->offset_len++] = off;
 }
 
@@ -377,20 +373,39 @@
 
 static int writer_finish_section(struct reftable_writer *w)
 {
+	struct reftable_block_stats *bstats = NULL;
 	uint8_t typ = block_writer_type(w->block_writer);
 	uint64_t index_start = 0;
 	int max_level = 0;
-	int threshold = w->opts.unpadded ? 1 : 3;
+	size_t threshold = w->opts.unpadded ? 1 : 3;
 	int before_blocks = w->stats.idx_stats.blocks;
-	int err = writer_flush_block(w);
-	int i = 0;
-	struct reftable_block_stats *bstats = NULL;
+	int err;
+
+	err = writer_flush_block(w);
 	if (err < 0)
 		return err;
 
+	/*
+	 * When the section we are about to index has a lot of blocks then the
+	 * index itself may span across multiple blocks, as well. This would
+	 * require a linear scan over index blocks only to find the desired
+	 * indexed block, which is inefficient. Instead, we write a multi-level
+	 * index where index records of level N+1 will refer to index blocks of
+	 * level N. This isn't constant time, either, but at least logarithmic.
+	 *
+	 * This loop handles writing this multi-level index. Note that we write
+	 * the lowest-level index pointing to the indexed blocks first. We then
+	 * continue writing additional index levels until the current level has
+	 * less blocks than the threshold so that the highest level will be at
+	 * the end of the index section.
+	 *
+	 * Readers are thus required to start reading the index section from
+	 * its end, which is why we set `index_start` to the beginning of the
+	 * last index section.
+	 */
 	while (w->index_len > threshold) {
 		struct reftable_index_record *idx = NULL;
-		int idx_len = 0;
+		size_t i, idx_len;
 
 		max_level++;
 		index_start = w->next;
@@ -409,35 +424,28 @@
 					.idx = idx[i],
 				},
 			};
-			if (block_writer_add(w->block_writer, &rec) == 0) {
-				continue;
-			}
 
-			err = writer_flush_block(w);
+			err = writer_add_record(w, &rec);
 			if (err < 0)
 				return err;
-
-			writer_reinit_block_writer(w, BLOCK_TYPE_INDEX);
-
-			err = block_writer_add(w->block_writer, &rec);
-			if (err != 0) {
-				/* write into fresh block should always succeed
-				 */
-				abort();
-			}
 		}
-		for (i = 0; i < idx_len; i++) {
+
+		err = writer_flush_block(w);
+		if (err < 0)
+			return err;
+
+		for (i = 0; i < idx_len; i++)
 			strbuf_release(&idx[i].last_key);
-		}
 		reftable_free(idx);
 	}
 
+	/*
+	 * The index may still contain a number of index blocks lower than the
+	 * threshold. Clear it so that these entries don't leak into the next
+	 * index section.
+	 */
 	writer_clear_index(w);
 
-	err = writer_flush_block(w);
-	if (err < 0)
-		return err;
-
 	bstats = writer_reftable_block_stats(w, typ);
 	bstats->index_blocks = w->stats.idx_stats.blocks - before_blocks;
 	bstats->index_offset = index_start;
@@ -603,6 +611,12 @@
 	put_be32(p, crc32(0, footer, p - footer));
 	p += 4;
 
+	err = w->flush(w->write_arg);
+	if (err < 0) {
+		err = REFTABLE_IO_ERROR;
+		goto done;
+	}
+
 	err = padded_write(w, footer, footer_size(writer_version(w)), 0);
 	if (err < 0)
 		goto done;
@@ -622,11 +636,8 @@
 
 static void writer_clear_index(struct reftable_writer *w)
 {
-	int i = 0;
-	for (i = 0; i < w->index_len; i++) {
+	for (size_t i = 0; i < w->index_len; i++)
 		strbuf_release(&w->index[i].last_key);
-	}
-
 	FREE_AND_NULL(w->index);
 	w->index_len = 0;
 	w->index_cap = 0;
@@ -674,12 +685,7 @@
 	if (err < 0)
 		return err;
 
-	if (w->index_cap == w->index_len) {
-		w->index_cap = 2 * w->index_cap + 1;
-		w->index = reftable_realloc(
-			w->index,
-			sizeof(struct reftable_index_record) * w->index_cap);
-	}
+	REFTABLE_ALLOC_GROW(w->index, w->index_len + 1, w->index_cap);
 
 	ir.offset = w->next;
 	strbuf_reset(&ir.last_key);
diff --git a/reftable/writer.h b/reftable/writer.h
index 09b8867..8d0df9c 100644
--- a/reftable/writer.h
+++ b/reftable/writer.h
@@ -16,6 +16,7 @@
 
 struct reftable_writer {
 	ssize_t (*write)(void *, const void *, size_t);
+	int (*flush)(void *);
 	void *write_arg;
 	int pending_padding;
 	struct strbuf last_key;
diff --git a/remote-curl.c b/remote-curl.c
index 7f81bf3..1161dc7 100644
--- a/remote-curl.c
+++ b/remote-curl.c
@@ -1446,8 +1446,14 @@
 	 * establish a stateless connection, otherwise we need to tell the
 	 * client to fallback to using other transport helper functions to
 	 * complete their request.
+	 *
+	 * The "git-upload-archive" service is a read-only operation. Fallback
+	 * to use "git-upload-pack" service to discover protocol version.
 	 */
-	discover = discover_refs(service_name, 0);
+	if (!strcmp(service_name, "git-upload-archive"))
+		discover = discover_refs("git-upload-pack", 0);
+	else
+		discover = discover_refs(service_name, 0);
 	if (discover->version != protocol_v2) {
 		printf("fallback\n");
 		fflush(stdout);
@@ -1485,9 +1491,11 @@
 
 	/*
 	 * Dump the capability listing that we got from the server earlier
-	 * during the info/refs request.
+	 * during the info/refs request. This does not work with the
+	 * "git-upload-archive" service.
 	 */
-	write_or_die(rpc.in, discover->buf, discover->len);
+	if (strcmp(service_name, "git-upload-archive"))
+		write_or_die(rpc.in, discover->buf, discover->len);
 
 	/* Until we see EOF keep sending POSTs */
 	while (1) {
@@ -1563,8 +1571,11 @@
 		if (buf.len == 0)
 			break;
 		if (starts_with(buf.buf, "fetch ")) {
-			if (nongit)
-				die(_("remote-curl: fetch attempted without a local repo"));
+			if (nongit) {
+				setup_git_directory_gently(&nongit);
+				if (nongit)
+					die(_("remote-curl: fetch attempted without a local repo"));
+			}
 			parse_fetch(&buf);
 
 		} else if (!strcmp(buf.buf, "list") || starts_with(buf.buf, "list ")) {
diff --git a/remote.c b/remote.c
index 6bef953..e07b316 100644
--- a/remote.c
+++ b/remote.c
@@ -508,7 +508,7 @@
 	}
 }
 
-static void read_config(struct repository *repo)
+static void read_config(struct repository *repo, int early)
 {
 	int flag;
 
@@ -517,7 +517,7 @@
 	repo->remote_state->initialized = 1;
 
 	repo->remote_state->current_branch = NULL;
-	if (startup_info->have_repository) {
+	if (startup_info->have_repository && !early) {
 		const char *head_ref = refs_resolve_ref_unsafe(
 			get_main_ref_store(repo), "HEAD", 0, NULL, &flag);
 		if (head_ref && (flag & REF_ISSYMREF) &&
@@ -560,7 +560,7 @@
 
 const char *remote_for_branch(struct branch *branch, int *explicit)
 {
-	read_config(the_repository);
+	read_config(the_repository, 0);
 	die_on_missing_branch(the_repository, branch);
 
 	return remotes_remote_for_branch(the_repository->remote_state, branch,
@@ -586,7 +586,7 @@
 
 const char *pushremote_for_branch(struct branch *branch, int *explicit)
 {
-	read_config(the_repository);
+	read_config(the_repository, 0);
 	die_on_missing_branch(the_repository, branch);
 
 	return remotes_pushremote_for_branch(the_repository->remote_state,
@@ -598,7 +598,7 @@
 
 const char *remote_ref_for_branch(struct branch *branch, int for_push)
 {
-	read_config(the_repository);
+	read_config(the_repository, 0);
 	die_on_missing_branch(the_repository, branch);
 
 	if (branch) {
@@ -708,7 +708,13 @@
 
 struct remote *remote_get(const char *name)
 {
-	read_config(the_repository);
+	read_config(the_repository, 0);
+	return remotes_remote_get(the_repository->remote_state, name);
+}
+
+struct remote *remote_get_early(const char *name)
+{
+	read_config(the_repository, 1);
 	return remotes_remote_get(the_repository->remote_state, name);
 }
 
@@ -721,7 +727,7 @@
 
 struct remote *pushremote_get(const char *name)
 {
-	read_config(the_repository);
+	read_config(the_repository, 0);
 	return remotes_pushremote_get(the_repository->remote_state, name);
 }
 
@@ -737,7 +743,7 @@
 int for_each_remote(each_remote_fn fn, void *priv)
 {
 	int i, result = 0;
-	read_config(the_repository);
+	read_config(the_repository, 0);
 	for (i = 0; i < the_repository->remote_state->remotes_nr && !result;
 	     i++) {
 		struct remote *remote =
@@ -1830,7 +1836,7 @@
 {
 	struct branch *ret;
 
-	read_config(the_repository);
+	read_config(the_repository, 0);
 	if (!name || !*name || !strcmp(name, "HEAD"))
 		ret = the_repository->remote_state->current_branch;
 	else
@@ -1972,7 +1978,7 @@
 
 const char *branch_get_push(struct branch *branch, struct strbuf *err)
 {
-	read_config(the_repository);
+	read_config(the_repository, 0);
 	die_on_missing_branch(the_repository, branch);
 
 	if (!branch)
diff --git a/remote.h b/remote.h
index 3a7377f..dfd4837 100644
--- a/remote.h
+++ b/remote.h
@@ -118,6 +118,7 @@
  * and configuration.
  */
 struct remote *remote_get(const char *name);
+struct remote *remote_get_early(const char *name);
 
 struct remote *pushremote_get(const char *name);
 int remote_is_configured(struct remote *remote, int in_repo);
diff --git a/repo-settings.c b/repo-settings.c
index 30cd478..a0b590b 100644
--- a/repo-settings.c
+++ b/repo-settings.c
@@ -43,6 +43,7 @@
 	if (experimental) {
 		r->settings.fetch_negotiation_algorithm = FETCH_NEGOTIATION_SKIPPING;
 		r->settings.pack_use_bitmap_boundary_traversal = 1;
+		r->settings.pack_use_multi_pack_reuse = 1;
 	}
 	if (manyfiles) {
 		r->settings.index_version = 4;
diff --git a/repository.c b/repository.c
index a7679ce..7aacb51 100644
--- a/repository.c
+++ b/repository.c
@@ -104,6 +104,11 @@
 	repo->hash_algo = &hash_algos[hash_algo];
 }
 
+void repo_set_ref_storage_format(struct repository *repo, unsigned int format)
+{
+	repo->ref_storage_format = format;
+}
+
 /*
  * Attempt to resolve and set the provided 'gitdir' for repository 'repo'.
  * Return 0 upon success and a non-zero value upon failure.
@@ -184,6 +189,7 @@
 		goto error;
 
 	repo_set_hash_algo(repo, format.hash_algo);
+	repo_set_ref_storage_format(repo, format.ref_storage_format);
 	repo->repository_format_worktree_config = format.worktree_config;
 
 	/* take ownership of format.partial_clone */
@@ -256,8 +262,6 @@
 	FREE_AND_NULL(cache->merge_rr);
 	FREE_AND_NULL(cache->merge_mode);
 	FREE_AND_NULL(cache->merge_head);
-	FREE_AND_NULL(cache->merge_autostash);
-	FREE_AND_NULL(cache->auto_merge);
 	FREE_AND_NULL(cache->fetch_head);
 	FREE_AND_NULL(cache->shallow);
 }
diff --git a/repository.h b/repository.h
index 5f18486..21949c5 100644
--- a/repository.h
+++ b/repository.h
@@ -24,6 +24,9 @@
 	FETCH_NEGOTIATION_NOOP,
 };
 
+#define REF_STORAGE_FORMAT_UNKNOWN 0
+#define REF_STORAGE_FORMAT_FILES   1
+
 struct repo_settings {
 	int initialized;
 
@@ -36,6 +39,7 @@
 	int sparse_index;
 	int pack_read_reverse_index;
 	int pack_use_bitmap_boundary_traversal;
+	int pack_use_multi_pack_reuse;
 
 	/*
 	 * Does this repository have core.useReplaceRefs=true (on by
@@ -64,8 +68,6 @@
 	char *merge_rr;
 	char *merge_mode;
 	char *merge_head;
-	char *merge_autostash;
-	char *auto_merge;
 	char *fetch_head;
 	char *shallow;
 };
@@ -160,6 +162,9 @@
 	/* Repository's current hash algorithm, as serialized on disk. */
 	const struct git_hash_algo *hash_algo;
 
+	/* Repository's reference storage format, as serialized on disk. */
+	unsigned int ref_storage_format;
+
 	/* A unique-id for tracing purposes. */
 	int trace2_repo_id;
 
@@ -199,6 +204,7 @@
 		     const struct set_gitdir_args *extra_args);
 void repo_set_worktree(struct repository *repo, const char *path);
 void repo_set_hash_algo(struct repository *repo, int algo);
+void repo_set_ref_storage_format(struct repository *repo, unsigned int format);
 void initialize_the_repository(void);
 RESULT_MUST_BE_USED
 int repo_init(struct repository *r, const char *gitdir, const char *worktree);
diff --git a/rerere.c b/rerere.c
index ca7e77b..13c94de 100644
--- a/rerere.c
+++ b/rerere.c
@@ -973,6 +973,9 @@
 			mmfile[i].ptr = repo_read_object_file(the_repository,
 							      &ce->oid, &type,
 							      &size);
+			if (!mmfile[i].ptr)
+				die(_("unable to read %s"),
+				    oid_to_hex(&ce->oid));
 			mmfile[i].size = size;
 		}
 	}
diff --git a/sequencer.c b/sequencer.c
index 3cc88d8..f49a871 100644
--- a/sequencer.c
+++ b/sequencer.c
@@ -474,7 +474,7 @@
 		 * of the commit itself so remove CHERRY_PICK_HEAD
 		 */
 		refs_delete_ref(get_main_ref_store(r), "", "CHERRY_PICK_HEAD",
-				NULL, 0);
+				NULL, REF_NO_DEREF);
 		return;
 	}
 
@@ -1667,7 +1667,7 @@
 		strbuf_release(&sb);
 		if (!res) {
 			refs_delete_ref(get_main_ref_store(r), "",
-					"CHERRY_PICK_HEAD", NULL, 0);
+					"CHERRY_PICK_HEAD", NULL, REF_NO_DEREF);
 			unlink(git_path_merge_msg(r));
 			if (!is_rebase_i(opts))
 				print_commit_summary(r, NULL, &oid,
@@ -2406,9 +2406,10 @@
 	} else if (allow == 2) {
 		drop_commit = 1;
 		refs_delete_ref(get_main_ref_store(r), "", "CHERRY_PICK_HEAD",
-				NULL, 0);
+				NULL, REF_NO_DEREF);
 		unlink(git_path_merge_msg(r));
-		unlink(git_path_auto_merge(r));
+		refs_delete_ref(get_main_ref_store(r), "", "AUTO_MERGE",
+				NULL, REF_NO_DEREF);
 		fprintf(stderr,
 			_("dropping %s %s -- patch contents already upstream\n"),
 			oid_to_hex(&commit->object.oid), msg.subject);
@@ -2802,7 +2803,7 @@
 
 	if (refs_ref_exists(get_main_ref_store(r), "CHERRY_PICK_HEAD")) {
 		if (!refs_delete_ref(get_main_ref_store(r), "",
-				     "CHERRY_PICK_HEAD", NULL, 0) &&
+				     "CHERRY_PICK_HEAD", NULL, REF_NO_DEREF) &&
 		    verbose)
 			warning(_("cancelling a cherry picking in progress"));
 		opts.action = REPLAY_PICK;
@@ -2811,14 +2812,15 @@
 
 	if (refs_ref_exists(get_main_ref_store(r), "REVERT_HEAD")) {
 		if (!refs_delete_ref(get_main_ref_store(r), "", "REVERT_HEAD",
-				     NULL, 0) &&
+				     NULL, REF_NO_DEREF) &&
 		    verbose)
 			warning(_("cancelling a revert in progress"));
 		opts.action = REPLAY_REVERT;
 		need_cleanup = 1;
 	}
 
-	unlink(git_path_auto_merge(r));
+	refs_delete_ref(get_main_ref_store(r), "", "AUTO_MERGE",
+			NULL, REF_NO_DEREF);
 
 	if (!need_cleanup)
 		return;
@@ -3639,6 +3641,7 @@
 	fprintf(stderr, _("Executing: %s\n"), command_line);
 	cmd.use_shell = 1;
 	strvec_push(&cmd.args, command_line);
+	strvec_push(&cmd.env, "GIT_CHERRY_PICK_HELP");
 	status = run_command(&cmd);
 
 	/* force re-reading of the cache */
@@ -4116,7 +4119,7 @@
 
 		strbuf_release(&ref_name);
 		refs_delete_ref(get_main_ref_store(r), "", "CHERRY_PICK_HEAD",
-				NULL, 0);
+				NULL, REF_NO_DEREF);
 		rollback_lock_file(&lock);
 
 		ret = run_command(&cmd);
@@ -4461,12 +4464,17 @@
 	return -1;
 }
 
-void create_autostash(struct repository *r, const char *path)
+static void create_autostash_internal(struct repository *r,
+				      const char *path,
+				      const char *refname)
 {
 	struct strbuf buf = STRBUF_INIT;
 	struct lock_file lock_file = LOCK_INIT;
 	int fd;
 
+	if (path && refname)
+		BUG("can only pass path or refname");
+
 	fd = repo_hold_locked_index(r, &lock_file, 0);
 	refresh_index(r->index, REFRESH_QUIET, NULL, NULL, NULL);
 	if (0 <= fd)
@@ -4493,10 +4501,16 @@
 		strbuf_reset(&buf);
 		strbuf_add_unique_abbrev(&buf, &oid, DEFAULT_ABBREV);
 
-		if (safe_create_leading_directories_const(path))
-			die(_("Could not create directory for '%s'"),
-			    path);
-		write_file(path, "%s", oid_to_hex(&oid));
+		if (path) {
+			if (safe_create_leading_directories_const(path))
+				die(_("Could not create directory for '%s'"),
+				    path);
+			write_file(path, "%s", oid_to_hex(&oid));
+		} else {
+			refs_update_ref(get_main_ref_store(r), "", refname,
+					&oid, null_oid(), 0, UPDATE_REFS_DIE_ON_ERR);
+		}
+
 		printf(_("Created autostash: %s\n"), buf.buf);
 		if (reset_head(r, &ropts) < 0)
 			die(_("could not reset --hard"));
@@ -4507,6 +4521,16 @@
 	strbuf_release(&buf);
 }
 
+void create_autostash(struct repository *r, const char *path)
+{
+	create_autostash_internal(r, path, NULL);
+}
+
+void create_autostash_ref(struct repository *r, const char *refname)
+{
+	create_autostash_internal(r, NULL, refname);
+}
+
 static int apply_save_autostash_oid(const char *stash_oid, int attempt_apply)
 {
 	struct child_process child = CHILD_PROCESS_INIT;
@@ -4584,6 +4608,41 @@
 	return apply_save_autostash_oid(stash_oid, 1);
 }
 
+static int apply_save_autostash_ref(struct repository *r, const char *refname,
+				    int attempt_apply)
+{
+	struct object_id stash_oid;
+	char stash_oid_hex[GIT_MAX_HEXSZ + 1];
+	int flag, ret;
+
+	if (!refs_ref_exists(get_main_ref_store(r), refname))
+		return 0;
+
+	if (!refs_resolve_ref_unsafe(get_main_ref_store(r), refname,
+				     RESOLVE_REF_READING, &stash_oid, &flag))
+		return -1;
+	if (flag & REF_ISSYMREF)
+		return error(_("autostash reference is a symref"));
+
+	oid_to_hex_r(stash_oid_hex, &stash_oid);
+	ret = apply_save_autostash_oid(stash_oid_hex, attempt_apply);
+
+	refs_delete_ref(get_main_ref_store(r), "", refname,
+			&stash_oid, REF_NO_DEREF);
+
+	return ret;
+}
+
+int save_autostash_ref(struct repository *r, const char *refname)
+{
+	return apply_save_autostash_ref(r, refname, 0);
+}
+
+int apply_autostash_ref(struct repository *r, const char *refname)
+{
+	return apply_save_autostash_ref(r, refname, 1);
+}
+
 static int checkout_onto(struct repository *r, struct replay_opts *opts,
 			 const char *onto_name, const struct object_id *onto,
 			 const struct object_id *orig_head)
@@ -4766,8 +4825,10 @@
 			}
 			unlink(rebase_path_author_script());
 			unlink(git_path_merge_head(r));
-			unlink(git_path_auto_merge(r));
-			delete_ref(NULL, "REBASE_HEAD", NULL, REF_NO_DEREF);
+			refs_delete_ref(get_main_ref_store(r), "", "AUTO_MERGE",
+					NULL, REF_NO_DEREF);
+			refs_delete_ref(get_main_ref_store(r), "", "REBASE_HEAD",
+					NULL, REF_NO_DEREF);
 
 			if (item->command == TODO_BREAK) {
 				if (!opts->verbose)
@@ -5108,7 +5169,7 @@
 		if (refs_ref_exists(get_main_ref_store(r),
 				    "CHERRY_PICK_HEAD") &&
 		    refs_delete_ref(get_main_ref_store(r), "",
-				    "CHERRY_PICK_HEAD", NULL, 0))
+				    "CHERRY_PICK_HEAD", NULL, REF_NO_DEREF))
 			return error(_("could not remove CHERRY_PICK_HEAD"));
 		if (unlink(git_path_merge_msg(r)) && errno != ENOENT)
 			return error_errno(_("could not remove '%s'"),
@@ -5122,7 +5183,8 @@
 		return error(_("could not commit staged changes."));
 	unlink(rebase_path_amend());
 	unlink(git_path_merge_head(r));
-	unlink(git_path_auto_merge(r));
+	refs_delete_ref(get_main_ref_store(r), "", "AUTO_MERGE",
+			NULL, REF_NO_DEREF);
 	if (final_fixup) {
 		unlink(rebase_path_fixup_msg());
 		unlink(rebase_path_squash_msg());
diff --git a/sequencer.h b/sequencer.h
index 913a0f6..dcef7bb 100644
--- a/sequencer.h
+++ b/sequencer.h
@@ -225,9 +225,12 @@
 			 const struct object_id *new_head);
 
 void create_autostash(struct repository *r, const char *path);
+void create_autostash_ref(struct repository *r, const char *refname);
 int save_autostash(const char *path);
+int save_autostash_ref(struct repository *r, const char *refname);
 int apply_autostash(const char *path);
 int apply_autostash_oid(const char *stash_oid);
+int apply_autostash_ref(struct repository *r, const char *refname);
 
 #define SUMMARY_INITIAL_COMMIT   (1 << 0)
 #define SUMMARY_SHOW_AUTHOR_DATE (1 << 1)
diff --git a/setup.c b/setup.c
index 75df669..b69b1cb 100644
--- a/setup.c
+++ b/setup.c
@@ -591,6 +591,17 @@
 				     "extensions.objectformat", value);
 		data->hash_algo = format;
 		return EXTENSION_OK;
+	} else if (!strcmp(ext, "refstorage")) {
+		unsigned int format;
+
+		if (!value)
+			return config_error_nonbool(var);
+		format = ref_storage_format_by_name(value);
+		if (format == REF_STORAGE_FORMAT_UNKNOWN)
+			return error(_("invalid value for '%s': '%s'"),
+				     "extensions.refstorage", value);
+		data->ref_storage_format = format;
+		return EXTENSION_OK;
 	}
 	return EXTENSION_UNKNOWN;
 }
@@ -1360,7 +1371,8 @@
 
 		if (is_git_directory(dir->buf)) {
 			trace2_data_string("setup", NULL, "implicit-bare-repository", dir->buf);
-			if (get_allowed_bare_repo() == ALLOWED_BARE_REPO_EXPLICIT)
+			if (get_allowed_bare_repo() == ALLOWED_BARE_REPO_EXPLICIT &&
+			    !ends_with_path_components(dir->buf, ".git"))
 				return GIT_DIR_DISALLOWED_BARE;
 			if (!ensure_valid_ownership(NULL, NULL, dir->buf, report))
 				return GIT_DIR_INVALID_OWNERSHIP;
@@ -1565,6 +1577,8 @@
 		}
 		if (startup_info->have_repository) {
 			repo_set_hash_algo(the_repository, repo_fmt.hash_algo);
+			repo_set_ref_storage_format(the_repository,
+						    repo_fmt.ref_storage_format);
 			the_repository->repository_format_worktree_config =
 				repo_fmt.worktree_config;
 			/* take ownership of repo_fmt.partial_clone */
@@ -1658,6 +1672,8 @@
 	check_repository_format_gently(get_git_dir(), fmt, NULL);
 	startup_info->have_repository = 1;
 	repo_set_hash_algo(the_repository, fmt->hash_algo);
+	repo_set_ref_storage_format(the_repository,
+				    fmt->ref_storage_format);
 	the_repository->repository_format_worktree_config =
 		fmt->worktree_config;
 	the_repository->repository_format_partial_clone =
@@ -1866,12 +1882,15 @@
 	return 1;
 }
 
-void initialize_repository_version(int hash_algo, int reinit)
+void initialize_repository_version(int hash_algo,
+				   unsigned int ref_storage_format,
+				   int reinit)
 {
 	char repo_version_string[10];
 	int repo_version = GIT_REPO_VERSION;
 
-	if (hash_algo != GIT_HASH_SHA1)
+	if (hash_algo != GIT_HASH_SHA1 ||
+	    ref_storage_format != REF_STORAGE_FORMAT_FILES)
 		repo_version = GIT_REPO_VERSION_READ;
 
 	/* This forces creation of new config file */
@@ -1884,23 +1903,72 @@
 			       hash_algos[hash_algo].name);
 	else if (reinit)
 		git_config_set_gently("extensions.objectformat", NULL);
+
+	if (ref_storage_format != REF_STORAGE_FORMAT_FILES)
+		git_config_set("extensions.refstorage",
+			       ref_storage_format_to_name(ref_storage_format));
+}
+
+static int is_reinit(void)
+{
+	struct strbuf buf = STRBUF_INIT;
+	char junk[2];
+	int ret;
+
+	git_path_buf(&buf, "HEAD");
+	ret = !access(buf.buf, R_OK) || readlink(buf.buf, junk, sizeof(junk) - 1) != -1;
+	strbuf_release(&buf);
+	return ret;
+}
+
+void create_reference_database(unsigned int ref_storage_format,
+			       const char *initial_branch, int quiet)
+{
+	struct strbuf err = STRBUF_INIT;
+	int reinit = is_reinit();
+
+	repo_set_ref_storage_format(the_repository, ref_storage_format);
+	if (refs_init_db(get_main_ref_store(the_repository), 0, &err))
+		die("failed to set up refs db: %s", err.buf);
+
+	/*
+	 * Point the HEAD symref to the initial branch with if HEAD does
+	 * not yet exist.
+	 */
+	if (!reinit) {
+		char *ref;
+
+		if (!initial_branch)
+			initial_branch = git_default_branch_name(quiet);
+
+		ref = xstrfmt("refs/heads/%s", initial_branch);
+		if (check_refname_format(ref, 0) < 0)
+			die(_("invalid initial branch name: '%s'"),
+			    initial_branch);
+
+		if (create_symref("HEAD", ref, NULL) < 0)
+			exit(1);
+		free(ref);
+	}
+
+	if (reinit && initial_branch)
+		warning(_("re-init: ignored --initial-branch=%s"),
+			initial_branch);
+
+	strbuf_release(&err);
 }
 
 static int create_default_files(const char *template_path,
 				const char *original_git_dir,
-				const char *initial_branch,
 				const struct repository_format *fmt,
 				int prev_bare_repository,
-				int init_shared_repository,
-				int quiet)
+				int init_shared_repository)
 {
 	struct stat st1;
 	struct strbuf buf = STRBUF_INIT;
 	char *path;
-	char junk[2];
 	int reinit;
 	int filemode;
-	struct strbuf err = STRBUF_INIT;
 	const char *init_template_dir = NULL;
 	const char *work_tree = get_git_work_tree();
 
@@ -1920,6 +1988,8 @@
 	reset_shared_repository();
 	git_config(git_default_config, NULL);
 
+	reinit = is_reinit();
+
 	/*
 	 * We must make sure command-line options continue to override any
 	 * values we might have just re-read from the config.
@@ -1963,40 +2033,7 @@
 		adjust_shared_perm(get_git_dir());
 	}
 
-	/*
-	 * We need to create a "refs" dir in any case so that older
-	 * versions of git can tell that this is a repository.
-	 */
-	safe_create_dir(git_path("refs"), 1);
-	adjust_shared_perm(git_path("refs"));
-
-	if (refs_init_db(&err))
-		die("failed to set up refs db: %s", err.buf);
-
-	/*
-	 * Point the HEAD symref to the initial branch with if HEAD does
-	 * not yet exist.
-	 */
-	path = git_path_buf(&buf, "HEAD");
-	reinit = (!access(path, R_OK)
-		  || readlink(path, junk, sizeof(junk)-1) != -1);
-	if (!reinit) {
-		char *ref;
-
-		if (!initial_branch)
-			initial_branch = git_default_branch_name(quiet);
-
-		ref = xstrfmt("refs/heads/%s", initial_branch);
-		if (check_refname_format(ref, 0) < 0)
-			die(_("invalid initial branch name: '%s'"),
-			    initial_branch);
-
-		if (create_symref("HEAD", ref, NULL) < 0)
-			exit(1);
-		free(ref);
-	}
-
-	initialize_repository_version(fmt->hash_algo, 0);
+	initialize_repository_version(fmt->hash_algo, fmt->ref_storage_format, 0);
 
 	/* Check filemode trustability */
 	path = git_path_buf(&buf, "config");
@@ -2109,8 +2146,29 @@
 	}
 }
 
+static void validate_ref_storage_format(struct repository_format *repo_fmt,
+					unsigned int format)
+{
+	const char *name = getenv("GIT_DEFAULT_REF_FORMAT");
+
+	if (repo_fmt->version >= 0 &&
+	    format != REF_STORAGE_FORMAT_UNKNOWN &&
+	    format != repo_fmt->ref_storage_format) {
+		die(_("attempt to reinitialize repository with different reference storage format"));
+	} else if (format != REF_STORAGE_FORMAT_UNKNOWN) {
+		repo_fmt->ref_storage_format = format;
+	} else if (name) {
+		format = ref_storage_format_by_name(name);
+		if (format == REF_STORAGE_FORMAT_UNKNOWN)
+			die(_("unknown ref storage format '%s'"), name);
+		repo_fmt->ref_storage_format = format;
+	}
+}
+
 int init_db(const char *git_dir, const char *real_git_dir,
-	    const char *template_dir, int hash, const char *initial_branch,
+	    const char *template_dir, int hash,
+	    unsigned int ref_storage_format,
+	    const char *initial_branch,
 	    int init_shared_repository, unsigned int flags)
 {
 	int reinit;
@@ -2153,16 +2211,22 @@
 	check_repository_format(&repo_fmt);
 
 	validate_hash_algorithm(&repo_fmt, hash);
+	validate_ref_storage_format(&repo_fmt, ref_storage_format);
 
 	reinit = create_default_files(template_dir, original_git_dir,
-				      initial_branch, &repo_fmt,
-				      prev_bare_repository,
-				      init_shared_repository,
-				      flags & INIT_DB_QUIET);
-	if (reinit && initial_branch)
-		warning(_("re-init: ignored --initial-branch=%s"),
-			initial_branch);
+				      &repo_fmt, prev_bare_repository,
+				      init_shared_repository);
 
+	/*
+	 * Now that we have set up both the hash algorithm and the ref storage
+	 * format we can update the repository's settings accordingly.
+	 */
+	repo_set_hash_algo(the_repository, repo_fmt.hash_algo);
+	repo_set_ref_storage_format(the_repository, repo_fmt.ref_storage_format);
+
+	if (!(flags & INIT_DB_SKIP_REFDB))
+		create_reference_database(repo_fmt.ref_storage_format,
+					  initial_branch, flags & INIT_DB_QUIET);
 	create_object_directory();
 
 	if (get_shared_repository()) {
diff --git a/setup.h b/setup.h
index b48cf1c..3599aec 100644
--- a/setup.h
+++ b/setup.h
@@ -115,6 +115,7 @@
 	int worktree_config;
 	int is_bare;
 	int hash_algo;
+	unsigned int ref_storage_format;
 	int sparse_index;
 	char *work_tree;
 	struct string_list unknown_extensions;
@@ -131,6 +132,7 @@
 	.version = -1, \
 	.is_bare = -1, \
 	.hash_algo = GIT_HASH_SHA1, \
+	.ref_storage_format = REF_STORAGE_FORMAT_FILES, \
 	.unknown_extensions = STRING_LIST_INIT_DUP, \
 	.v1_only_extensions = STRING_LIST_INIT_DUP, \
 }
@@ -169,14 +171,20 @@
  */
 void check_repository_format(struct repository_format *fmt);
 
-#define INIT_DB_QUIET 0x0001
-#define INIT_DB_EXIST_OK 0x0002
+#define INIT_DB_QUIET      (1 << 0)
+#define INIT_DB_EXIST_OK   (1 << 1)
+#define INIT_DB_SKIP_REFDB (1 << 2)
 
 int init_db(const char *git_dir, const char *real_git_dir,
 	    const char *template_dir, int hash_algo,
+	    unsigned int ref_storage_format,
 	    const char *initial_branch, int init_shared_repository,
 	    unsigned int flags);
-void initialize_repository_version(int hash_algo, int reinit);
+void initialize_repository_version(int hash_algo,
+				   unsigned int ref_storage_format,
+				   int reinit);
+void create_reference_database(unsigned int ref_storage_format,
+			       const char *initial_branch, int quiet);
 
 /*
  * NOTE NOTE NOTE!!
diff --git a/shared.mak b/shared.mak
index aeb80fc..29bebd3 100644
--- a/shared.mak
+++ b/shared.mak
@@ -108,3 +108,11 @@
 define mkdir_p_parent_template
 $(if $(wildcard $(@D)),,$(QUIET_MKDIR_P_PARENT)$(shell mkdir -p $(@D)))
 endef
+
+## Getting sick of writing -L$(SOMELIBDIR) $(CC_LD_DYNPATH)$(SOMELIBDIR)?
+## Write $(call libpath_template,$(SOMELIBDIR)) instead, perhaps?
+## With CC_LD_DYNPATH set to either an empty string or to "-L", the
+## the directory is not shown the second time.
+define libpath_template
+-L$(1) $(if $(filter-out -L,$(CC_LD_DYNPATH)),$(CC_LD_DYNPATH)$(1))
+endef
diff --git a/sparse-index.c b/sparse-index.c
index 3578feb..e48e40c 100644
--- a/sparse-index.c
+++ b/sparse-index.c
@@ -579,8 +579,9 @@
 		replace++;
 		temp = *replace;
 		*replace = '\0';
+		substr_len = replace - path_mutable.buf;
 		if (index_file_exists(istate, path_mutable.buf,
-				      path_mutable.len, icase)) {
+				      substr_len, icase)) {
 			/*
 			 * We found a parent directory in the name-hash
 			 * hashtable, because only sparse directory entries
@@ -593,7 +594,6 @@
 		}
 
 		*replace = temp;
-		substr_len = replace - path_mutable.buf;
 	}
 
 cleanup:
diff --git a/statinfo.c b/statinfo.c
index 9367ca0..3c6bc04 100644
--- a/statinfo.c
+++ b/statinfo.c
@@ -31,6 +31,33 @@
 	sd->sd_size = munge_st_size(st->st_size);
 }
 
+static void set_times(struct stat *st, const struct stat_data *sd)
+{
+	st->st_ctime = sd->sd_ctime.sec;
+	st->st_mtime = sd->sd_mtime.sec;
+#ifdef NO_NSEC
+	; /* nothing */
+#else
+#ifdef USE_ST_TIMESPEC
+	st->st_ctimespec.tv_nsec = sd->sd_ctime.nsec;
+	st->st_mtimespec.tv_nsec = sd->sd_mtime.nsec;
+#else
+	st->st_ctim.tv_nsec = sd->sd_ctime.nsec;
+	st->st_mtim.tv_nsec = sd->sd_mtime.nsec;
+#endif
+#endif
+}
+
+void fake_lstat_data(const struct stat_data *sd, struct stat *st)
+{
+	set_times(st, sd);
+	st->st_dev = sd->sd_dev;
+	st->st_ino = sd->sd_ino;
+	st->st_uid = sd->sd_uid;
+	st->st_gid = sd->sd_gid;
+	st->st_size = sd->sd_size;
+}
+
 int match_stat_data(const struct stat_data *sd, struct stat *st)
 {
 	int changed = 0;
diff --git a/statinfo.h b/statinfo.h
index 700f502..5b21a30 100644
--- a/statinfo.h
+++ b/statinfo.h
@@ -47,6 +47,14 @@
 void fill_stat_data(struct stat_data *sd, struct stat *st);
 
 /*
+ * The inverse of the above.  When we know the cache_entry that
+ * contains sd is up-to-date, but still need to pretend we called
+ * lstat() to learn that fact, this function fills "st" enough to
+ * fool ie_match_stat().
+ */
+void fake_lstat_data(const struct stat_data *sd, struct stat *st);
+
+/*
  * Return 0 if st is consistent with a file not having been changed
  * since sd was filled.  If there are differences, return a
  * combination of MTIME_CHANGED, CTIME_CHANGED, OWNER_CHANGED,
diff --git a/submodule-config.c b/submodule-config.c
index f4dd482..54130f6 100644
--- a/submodule-config.c
+++ b/submodule-config.c
@@ -14,6 +14,8 @@
 #include "parse-options.h"
 #include "thread-utils.h"
 #include "tree-walk.h"
+#include "url.h"
+#include "urlmatch.h"
 
 /*
  * submodule cache lookup structure
@@ -228,6 +230,144 @@
 	return 0;
 }
 
+static int starts_with_dot_slash(const char *const path)
+{
+	return path_match_flags(path, PATH_MATCH_STARTS_WITH_DOT_SLASH |
+				PATH_MATCH_XPLATFORM);
+}
+
+static int starts_with_dot_dot_slash(const char *const path)
+{
+	return path_match_flags(path, PATH_MATCH_STARTS_WITH_DOT_DOT_SLASH |
+				PATH_MATCH_XPLATFORM);
+}
+
+static int submodule_url_is_relative(const char *url)
+{
+	return starts_with_dot_slash(url) || starts_with_dot_dot_slash(url);
+}
+
+/*
+ * Count directory components that a relative submodule URL should chop
+ * from the remote_url it is to be resolved against.
+ *
+ * In other words, this counts "../" components at the start of a
+ * submodule URL.
+ *
+ * Returns the number of directory components to chop and writes a
+ * pointer to the next character of url after all leading "./" and
+ * "../" components to out.
+ */
+static int count_leading_dotdots(const char *url, const char **out)
+{
+	int result = 0;
+	while (1) {
+		if (starts_with_dot_dot_slash(url)) {
+			result++;
+			url += strlen("../");
+			continue;
+		}
+		if (starts_with_dot_slash(url)) {
+			url += strlen("./");
+			continue;
+		}
+		*out = url;
+		return result;
+	}
+}
+/*
+ * Check whether a transport is implemented by git-remote-curl.
+ *
+ * If it is, returns 1 and writes the URL that would be passed to
+ * git-remote-curl to the "out" parameter.
+ *
+ * Otherwise, returns 0 and leaves "out" untouched.
+ *
+ * Examples:
+ *   http::https://example.com/repo.git -> 1, https://example.com/repo.git
+ *   https://example.com/repo.git -> 1, https://example.com/repo.git
+ *   git://example.com/repo.git -> 0
+ *
+ * This is for use in checking for previously exploitable bugs that
+ * required a submodule URL to be passed to git-remote-curl.
+ */
+static int url_to_curl_url(const char *url, const char **out)
+{
+	/*
+	 * We don't need to check for case-aliases, "http.exe", and so
+	 * on because in the default configuration, is_transport_allowed
+	 * prevents URLs with those schemes from being cloned
+	 * automatically.
+	 */
+	if (skip_prefix(url, "http::", out) ||
+	    skip_prefix(url, "https::", out) ||
+	    skip_prefix(url, "ftp::", out) ||
+	    skip_prefix(url, "ftps::", out))
+		return 1;
+	if (starts_with(url, "http://") ||
+	    starts_with(url, "https://") ||
+	    starts_with(url, "ftp://") ||
+	    starts_with(url, "ftps://")) {
+		*out = url;
+		return 1;
+	}
+	return 0;
+}
+
+int check_submodule_url(const char *url)
+{
+	const char *curl_url;
+
+	if (looks_like_command_line_option(url))
+		return -1;
+
+	if (submodule_url_is_relative(url) || starts_with(url, "git://")) {
+		char *decoded;
+		const char *next;
+		int has_nl;
+
+		/*
+		 * This could be appended to an http URL and url-decoded;
+		 * check for malicious characters.
+		 */
+		decoded = url_decode(url);
+		has_nl = !!strchr(decoded, '\n');
+
+		free(decoded);
+		if (has_nl)
+			return -1;
+
+		/*
+		 * URLs which escape their root via "../" can overwrite
+		 * the host field and previous components, resolving to
+		 * URLs like https::example.com/submodule.git and
+		 * https:///example.com/submodule.git that were
+		 * susceptible to CVE-2020-11008.
+		 */
+		if (count_leading_dotdots(url, &next) > 0 &&
+		    (*next == ':' || *next == '/'))
+			return -1;
+	}
+
+	else if (url_to_curl_url(url, &curl_url)) {
+		int ret = 0;
+		char *normalized = url_normalize(curl_url, NULL);
+		if (normalized) {
+			char *decoded = url_decode(normalized);
+			if (strchr(decoded, '\n'))
+				ret = -1;
+			free(normalized);
+			free(decoded);
+		} else {
+			ret = -1;
+		}
+
+		return ret;
+	}
+
+	return 0;
+}
+
 static int name_and_item_from_var(const char *var, struct strbuf *name,
 				  struct strbuf *item)
 {
diff --git a/submodule-config.h b/submodule-config.h
index 958f320..b6133af 100644
--- a/submodule-config.h
+++ b/submodule-config.h
@@ -89,6 +89,9 @@
  */
 int check_submodule_name(const char *name);
 
+/* Returns 0 if the URL valid per RFC3986 and -1 otherwise. */
+int check_submodule_url(const char *url);
+
 /*
  * Note: these helper functions exist solely to maintain backward
  * compatibility with 'fetch' and 'update_clone' storing configuration in
diff --git a/t/Makefile b/t/Makefile
index fae3012..2d95046 100644
--- a/t/Makefile
+++ b/t/Makefile
@@ -1,3 +1,6 @@
+# The default target of this Makefile is...
+all::
+
 # Import tree-wide shared Makefile behavior and libraries
 include ../shared.mak
 
@@ -6,6 +9,7 @@
 # Copyright (c) 2005 Junio C Hamano
 #
 
+-include ../config.mak.uname
 -include ../config.mak.autogen
 -include ../config.mak
 
@@ -17,6 +21,7 @@
 RM ?= rm -f
 PROVE ?= prove
 DEFAULT_TEST_TARGET ?= test
+DEFAULT_UNIT_TEST_TARGET ?= unit-tests-raw
 TEST_LINT ?= test-lint
 
 ifdef TEST_OUTPUT_DIRECTORY
@@ -41,13 +46,16 @@
 TINTEROP = $(sort $(wildcard interop/i[0-9][0-9][0-9][0-9]-*.sh))
 CHAINLINTTESTS = $(sort $(patsubst chainlint/%.test,%,$(wildcard chainlint/*.test)))
 CHAINLINT = '$(PERL_PATH_SQ)' chainlint.pl
+UNIT_TEST_SOURCES = $(wildcard unit-tests/t-*.c)
+UNIT_TEST_PROGRAMS = $(patsubst unit-tests/%.c,unit-tests/bin/%$(X),$(UNIT_TEST_SOURCES))
+UNIT_TESTS = $(sort $(filter-out unit-tests/bin/t-basic%,$(UNIT_TEST_PROGRAMS)))
 
 # `test-chainlint` (which is a dependency of `test-lint`, `test` and `prove`)
 # checks all tests in all scripts via a single invocation, so tell individual
 # scripts not to run the external "chainlint.pl" script themselves
 CHAINLINTSUPPRESS = GIT_TEST_EXT_CHAIN_LINT=0 && export GIT_TEST_EXT_CHAIN_LINT &&
 
-all: $(DEFAULT_TEST_TARGET)
+all:: $(DEFAULT_TEST_TARGET)
 
 test: pre-clean check-chainlint $(TEST_LINT)
 	$(CHAINLINTSUPPRESS) $(MAKE) aggregate-results-and-cleanup
@@ -65,6 +73,17 @@
 $(T):
 	@echo "*** $@ ***"; '$(TEST_SHELL_PATH_SQ)' $@ $(GIT_TEST_OPTS)
 
+$(UNIT_TESTS):
+	@echo "*** $@ ***"; $@
+
+.PHONY: unit-tests unit-tests-raw unit-tests-prove
+unit-tests: $(DEFAULT_UNIT_TEST_TARGET)
+
+unit-tests-raw: $(UNIT_TESTS)
+
+unit-tests-prove:
+	@echo "*** prove - unit tests ***"; $(PROVE) $(GIT_PROVE_OPTS) $(UNIT_TESTS)
+
 pre-clean:
 	$(RM) -r '$(TEST_RESULTS_DIRECTORY_SQ)'
 
@@ -141,4 +160,4 @@
 	$(MAKE) -C perf/ all
 
 .PHONY: pre-clean $(T) aggregate-results clean valgrind perf \
-	check-chainlint clean-chainlint test-chainlint
+	check-chainlint clean-chainlint test-chainlint $(UNIT_TESTS)
diff --git a/t/README b/t/README
index 36463d0..621d3b8 100644
--- a/t/README
+++ b/t/README
@@ -479,6 +479,9 @@
 use in the test scripts. Recognized values for <hash-algo> are "sha1"
 and "sha256".
 
+GIT_TEST_DEFAULT_REF_FORMAT=<format> specifies which ref storage format
+to use in the test scripts. Recognized values for <format> are "files".
+
 GIT_TEST_NO_WRITE_REV_INDEX=<boolean>, when true disables the
 'pack.writeReverseIndex' setting.
 
diff --git a/t/helper/test-ctype.c b/t/helper/test-ctype.c
deleted file mode 100644
index e5659df..0000000
--- a/t/helper/test-ctype.c
+++ /dev/null
@@ -1,70 +0,0 @@
-#include "test-tool.h"
-
-static int rc;
-
-static void report_error(const char *class, int ch)
-{
-	printf("%s classifies char %d (0x%02x) wrongly\n", class, ch, ch);
-	rc = 1;
-}
-
-static int is_in(const char *s, int ch)
-{
-	/*
-	 * We can't find NUL using strchr. Accept it as the first
-	 * character in the spec -- there are no empty classes.
-	 */
-	if (ch == '\0')
-		return ch == *s;
-	if (*s == '\0')
-		s++;
-	return !!strchr(s, ch);
-}
-
-#define TEST_CLASS(t,s) {			\
-	int i;					\
-	for (i = 0; i < 256; i++) {		\
-		if (is_in(s, i) != t(i))	\
-			report_error(#t, i);	\
-	}					\
-	if (t(EOF))				\
-		report_error(#t, EOF);		\
-}
-
-#define DIGIT "0123456789"
-#define LOWER "abcdefghijklmnopqrstuvwxyz"
-#define UPPER "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
-#define PUNCT "!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~"
-#define ASCII \
-	"\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f" \
-	"\x10\x11\x12\x13\x14\x15\x16\x17\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f" \
-	"\x20\x21\x22\x23\x24\x25\x26\x27\x28\x29\x2a\x2b\x2c\x2d\x2e\x2f" \
-	"\x30\x31\x32\x33\x34\x35\x36\x37\x38\x39\x3a\x3b\x3c\x3d\x3e\x3f" \
-	"\x40\x41\x42\x43\x44\x45\x46\x47\x48\x49\x4a\x4b\x4c\x4d\x4e\x4f" \
-	"\x50\x51\x52\x53\x54\x55\x56\x57\x58\x59\x5a\x5b\x5c\x5d\x5e\x5f" \
-	"\x60\x61\x62\x63\x64\x65\x66\x67\x68\x69\x6a\x6b\x6c\x6d\x6e\x6f" \
-	"\x70\x71\x72\x73\x74\x75\x76\x77\x78\x79\x7a\x7b\x7c\x7d\x7e\x7f"
-#define CNTRL \
-	"\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f" \
-	"\x10\x11\x12\x13\x14\x15\x16\x17\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f" \
-	"\x7f"
-
-int cmd__ctype(int argc UNUSED, const char **argv UNUSED)
-{
-	TEST_CLASS(isdigit, DIGIT);
-	TEST_CLASS(isspace, " \n\r\t");
-	TEST_CLASS(isalpha, LOWER UPPER);
-	TEST_CLASS(isalnum, LOWER UPPER DIGIT);
-	TEST_CLASS(is_glob_special, "*?[\\");
-	TEST_CLASS(is_regex_special, "$()*+.?[\\^{|");
-	TEST_CLASS(is_pathspec_magic, "!\"#%&',-/:;<=>@_`~");
-	TEST_CLASS(isascii, ASCII);
-	TEST_CLASS(islower, LOWER);
-	TEST_CLASS(isupper, UPPER);
-	TEST_CLASS(iscntrl, CNTRL);
-	TEST_CLASS(ispunct, PUNCT);
-	TEST_CLASS(isxdigit, DIGIT "abcdefABCDEF");
-	TEST_CLASS(isprint, LOWER UPPER DIGIT PUNCT " ");
-
-	return rc;
-}
diff --git a/t/helper/test-fast-rebase.c b/t/helper/test-fast-rebase.c
deleted file mode 100644
index cac20a7..0000000
--- a/t/helper/test-fast-rebase.c
+++ /dev/null
@@ -1,241 +0,0 @@
-/*
- * "git fast-rebase" builtin command
- *
- * FAST: Forking Any Subprocesses (is) Taboo
- *
- * This is meant SOLELY as a demo of what is possible.  sequencer.c and
- * rebase.c should be refactored to use the ideas here, rather than attempting
- * to extend this file to replace those (unless Phillip or Dscho say that
- * refactoring is too hard and we need a clean slate, but I'm guessing that
- * refactoring is the better route).
- */
-
-#define USE_THE_INDEX_VARIABLE
-#include "test-tool.h"
-#include "cache-tree.h"
-#include "commit.h"
-#include "environment.h"
-#include "gettext.h"
-#include "hash.h"
-#include "hex.h"
-#include "lockfile.h"
-#include "merge-ort.h"
-#include "object-name.h"
-#include "read-cache-ll.h"
-#include "refs.h"
-#include "revision.h"
-#include "sequencer.h"
-#include "setup.h"
-#include "strvec.h"
-#include "tree.h"
-
-static const char *short_commit_name(struct commit *commit)
-{
-	return repo_find_unique_abbrev(the_repository, &commit->object.oid,
-				       DEFAULT_ABBREV);
-}
-
-static struct commit *peel_committish(const char *name)
-{
-	struct object *obj;
-	struct object_id oid;
-
-	if (repo_get_oid(the_repository, name, &oid))
-		return NULL;
-	obj = parse_object(the_repository, &oid);
-	return (struct commit *)repo_peel_to_type(the_repository, name, 0, obj,
-						  OBJ_COMMIT);
-}
-
-static char *get_author(const char *message)
-{
-	size_t len;
-	const char *a;
-
-	a = find_commit_header(message, "author", &len);
-	if (a)
-		return xmemdupz(a, len);
-
-	return NULL;
-}
-
-static struct commit *create_commit(struct tree *tree,
-				    struct commit *based_on,
-				    struct commit *parent)
-{
-	struct object_id ret;
-	struct object *obj;
-	struct commit_list *parents = NULL;
-	char *author;
-	char *sign_commit = NULL;
-	struct commit_extra_header *extra;
-	struct strbuf msg = STRBUF_INIT;
-	const char *out_enc = get_commit_output_encoding();
-	const char *message = repo_logmsg_reencode(the_repository, based_on,
-						   NULL, out_enc);
-	const char *orig_message = NULL;
-	const char *exclude_gpgsig[] = { "gpgsig", NULL };
-
-	commit_list_insert(parent, &parents);
-	extra = read_commit_extra_headers(based_on, exclude_gpgsig);
-	find_commit_subject(message, &orig_message);
-	strbuf_addstr(&msg, orig_message);
-	author = get_author(message);
-	reset_ident_date();
-	if (commit_tree_extended(msg.buf, msg.len, &tree->object.oid, parents,
-				 &ret, author, NULL, sign_commit, extra)) {
-		error(_("failed to write commit object"));
-		return NULL;
-	}
-	free(author);
-	strbuf_release(&msg);
-
-	obj = parse_object(the_repository, &ret);
-	return (struct commit *)obj;
-}
-
-int cmd__fast_rebase(int argc, const char **argv)
-{
-	struct commit *onto;
-	struct commit *last_commit = NULL, *last_picked_commit = NULL;
-	struct object_id head;
-	struct lock_file lock = LOCK_INIT;
-	struct strvec rev_walk_args = STRVEC_INIT;
-	struct rev_info revs;
-	struct commit *commit;
-	struct merge_options merge_opt;
-	struct tree *next_tree, *base_tree, *head_tree;
-	struct merge_result result;
-	struct strbuf reflog_msg = STRBUF_INIT;
-	struct strbuf branch_name = STRBUF_INIT;
-	int ret = 0;
-
-	/*
-	 * test-tool stuff doesn't set up the git directory by default; need to
-	 * do that manually.
-	 */
-	setup_git_directory();
-
-	if (argc == 2 && !strcmp(argv[1], "-h")) {
-		printf("Sorry, I am not a psychiatrist; I can not give you the help you need.  Oh, you meant usage...\n");
-		exit(129);
-	}
-
-	if (argc != 5 || strcmp(argv[1], "--onto"))
-		die("usage: read the code, figure out how to use it, then do so");
-
-	onto = peel_committish(argv[2]);
-	strbuf_addf(&branch_name, "refs/heads/%s", argv[4]);
-
-	/* Sanity check */
-	if (repo_get_oid(the_repository, "HEAD", &head))
-		die(_("Cannot read HEAD"));
-	assert(oideq(&onto->object.oid, &head));
-
-	repo_hold_locked_index(the_repository, &lock, LOCK_DIE_ON_ERROR);
-	if (repo_read_index(the_repository) < 0)
-		BUG("Could not read index");
-
-	repo_init_revisions(the_repository, &revs, NULL);
-	revs.verbose_header = 1;
-	revs.max_parents = 1;
-	revs.cherry_mark = 1;
-	revs.limited = 1;
-	revs.reverse = 1;
-	revs.right_only = 1;
-	revs.sort_order = REV_SORT_IN_GRAPH_ORDER;
-	revs.topo_order = 1;
-	strvec_pushl(&rev_walk_args, "", argv[4], "--not", argv[3], NULL);
-
-	if (setup_revisions(rev_walk_args.nr, rev_walk_args.v, &revs, NULL) > 1) {
-		ret = error(_("unhandled options"));
-		goto cleanup;
-	}
-
-	strvec_clear(&rev_walk_args);
-
-	if (prepare_revision_walk(&revs) < 0) {
-		ret = error(_("error preparing revisions"));
-		goto cleanup;
-	}
-
-	init_merge_options(&merge_opt, the_repository);
-	memset(&result, 0, sizeof(result));
-	merge_opt.show_rename_progress = 1;
-	merge_opt.branch1 = "HEAD";
-	head_tree = repo_get_commit_tree(the_repository, onto);
-	result.tree = head_tree;
-	last_commit = onto;
-	while ((commit = get_revision(&revs))) {
-		struct commit *base;
-
-		fprintf(stderr, "Rebasing %s...\r",
-			oid_to_hex(&commit->object.oid));
-		assert(commit->parents && !commit->parents->next);
-		base = commit->parents->item;
-
-		next_tree = repo_get_commit_tree(the_repository, commit);
-		base_tree = repo_get_commit_tree(the_repository, base);
-
-		merge_opt.branch2 = short_commit_name(commit);
-		merge_opt.ancestor = xstrfmt("parent of %s", merge_opt.branch2);
-
-		merge_incore_nonrecursive(&merge_opt,
-					  base_tree,
-					  result.tree,
-					  next_tree,
-					  &result);
-
-		free((char*)merge_opt.ancestor);
-		merge_opt.ancestor = NULL;
-		if (!result.clean)
-			break;
-		last_picked_commit = commit;
-		last_commit = create_commit(result.tree, commit, last_commit);
-	}
-
-	merge_switch_to_result(&merge_opt, head_tree, &result, 1, !result.clean);
-
-	if (result.clean < 0)
-		exit(128);
-
-	if (result.clean) {
-		fprintf(stderr, "\nDone.\n");
-		strbuf_addf(&reflog_msg, "finish rebase %s onto %s",
-			    oid_to_hex(&last_picked_commit->object.oid),
-			    oid_to_hex(&last_commit->object.oid));
-		if (update_ref(reflog_msg.buf, branch_name.buf,
-			       &last_commit->object.oid,
-			       &last_picked_commit->object.oid,
-			       REF_NO_DEREF, UPDATE_REFS_MSG_ON_ERR)) {
-			error(_("could not update %s"), argv[4]);
-			die("Failed to update %s", argv[4]);
-		}
-		if (create_symref("HEAD", branch_name.buf, reflog_msg.buf) < 0)
-			die(_("unable to update HEAD"));
-
-		prime_cache_tree(the_repository, the_repository->index,
-				 result.tree);
-	} else {
-		fprintf(stderr, "\nAborting: Hit a conflict.\n");
-		strbuf_addf(&reflog_msg, "rebase progress up to %s",
-			    oid_to_hex(&last_picked_commit->object.oid));
-		if (update_ref(reflog_msg.buf, "HEAD",
-			       &last_commit->object.oid,
-			       &head,
-			       REF_NO_DEREF, UPDATE_REFS_MSG_ON_ERR)) {
-			error(_("could not update %s"), argv[4]);
-			die("Failed to update %s", argv[4]);
-		}
-	}
-	if (write_locked_index(&the_index, &lock,
-			       COMMIT_LOCK | SKIP_IF_UNCHANGED))
-		die(_("unable to write %s"), get_index_file());
-
-	ret = (result.clean == 0);
-cleanup:
-	strbuf_release(&reflog_msg);
-	strbuf_release(&branch_name);
-	release_revisions(&revs);
-	return ret;
-}
diff --git a/t/helper/test-prio-queue.c b/t/helper/test-prio-queue.c
deleted file mode 100644
index f0bf255..0000000
--- a/t/helper/test-prio-queue.c
+++ /dev/null
@@ -1,51 +0,0 @@
-#include "test-tool.h"
-#include "prio-queue.h"
-
-static int intcmp(const void *va, const void *vb, void *data UNUSED)
-{
-	const int *a = va, *b = vb;
-	return *a - *b;
-}
-
-static void show(int *v)
-{
-	if (!v)
-		printf("NULL\n");
-	else
-		printf("%d\n", *v);
-	free(v);
-}
-
-int cmd__prio_queue(int argc UNUSED, const char **argv)
-{
-	struct prio_queue pq = { intcmp };
-
-	while (*++argv) {
-		if (!strcmp(*argv, "get")) {
-			void *peek = prio_queue_peek(&pq);
-			void *get = prio_queue_get(&pq);
-			if (peek != get)
-				BUG("peek and get results do not match");
-			show(get);
-		} else if (!strcmp(*argv, "dump")) {
-			void *peek;
-			void *get;
-			while ((peek = prio_queue_peek(&pq))) {
-				get = prio_queue_get(&pq);
-				if (peek != get)
-					BUG("peek and get results do not match");
-				show(get);
-			}
-		} else if (!strcmp(*argv, "stack")) {
-			pq.compare = NULL;
-		} else {
-			int *v = xmalloc(sizeof(*v));
-			*v = atoi(*argv);
-			prio_queue_put(&pq, v);
-		}
-	}
-
-	clear_prio_queue(&pq);
-
-	return 0;
-}
diff --git a/t/helper/test-read-midx.c b/t/helper/test-read-midx.c
index e9a444d..4acae41 100644
--- a/t/helper/test-read-midx.c
+++ b/t/helper/test-read-midx.c
@@ -6,6 +6,7 @@
 #include "pack-bitmap.h"
 #include "packfile.h"
 #include "setup.h"
+#include "gettext.h"
 
 static int read_midx_file(const char *object_dir, int show_objects)
 {
@@ -79,7 +80,7 @@
 static int read_midx_preferred_pack(const char *object_dir)
 {
 	struct multi_pack_index *midx = NULL;
-	struct bitmap_index *bitmap = NULL;
+	uint32_t preferred_pack;
 
 	setup_git_directory();
 
@@ -87,23 +88,45 @@
 	if (!midx)
 		return 1;
 
-	bitmap = prepare_bitmap_git(the_repository);
-	if (!bitmap)
-		return 1;
-	if (!bitmap_is_midx(bitmap)) {
-		free_bitmap_index(bitmap);
+	if (midx_preferred_pack(midx, &preferred_pack) < 0) {
+		warning(_("could not determine MIDX preferred pack"));
 		return 1;
 	}
 
-	printf("%s\n", midx->pack_names[midx_preferred_pack(bitmap)]);
-	free_bitmap_index(bitmap);
+	printf("%s\n", midx->pack_names[preferred_pack]);
+	return 0;
+}
+
+static int read_midx_bitmapped_packs(const char *object_dir)
+{
+	struct multi_pack_index *midx = NULL;
+	struct bitmapped_pack pack;
+	uint32_t i;
+
+	setup_git_directory();
+
+	midx = load_multi_pack_index(object_dir, 1);
+	if (!midx)
+		return 1;
+
+	for (i = 0; i < midx->num_packs; i++) {
+		if (nth_bitmapped_pack(the_repository, midx, &pack, i) < 0)
+			return 1;
+
+		printf("%s\n", pack_basename(pack.p));
+		printf("  bitmap_pos: %"PRIuMAX"\n", (uintmax_t)pack.bitmap_pos);
+		printf("  bitmap_nr: %"PRIuMAX"\n", (uintmax_t)pack.bitmap_nr);
+	}
+
+	close_midx(midx);
+
 	return 0;
 }
 
 int cmd__read_midx(int argc, const char **argv)
 {
 	if (!(argc == 2 || argc == 3))
-		usage("read-midx [--show-objects|--checksum|--preferred-pack] <object-dir>");
+		usage("read-midx [--show-objects|--checksum|--preferred-pack|--bitmap] <object-dir>");
 
 	if (!strcmp(argv[1], "--show-objects"))
 		return read_midx_file(argv[2], 1);
@@ -111,5 +134,7 @@
 		return read_midx_checksum(argv[2]);
 	else if (!strcmp(argv[1], "--preferred-pack"))
 		return read_midx_preferred_pack(argv[2]);
+	else if (!strcmp(argv[1], "--bitmap"))
+		return read_midx_bitmapped_packs(argv[2]);
 	return read_midx_file(argv[1], 0);
 }
diff --git a/t/helper/test-ref-store.c b/t/helper/test-ref-store.c
index 48552e6..702ec1f 100644
--- a/t/helper/test-ref-store.c
+++ b/t/helper/test-ref-store.c
@@ -298,16 +298,19 @@
 	const char *new_sha1_buf = notnull(*argv++, "new-sha1");
 	const char *old_sha1_buf = notnull(*argv++, "old-sha1");
 	unsigned int flags = arg_flags(*argv++, "flags", transaction_flags);
-	struct object_id old_oid;
+	struct object_id old_oid, *old_oid_ptr = NULL;
 	struct object_id new_oid;
 
-	if (get_oid_hex(old_sha1_buf, &old_oid))
-		die("cannot parse %s as %s", old_sha1_buf, the_hash_algo->name);
+	if (*old_sha1_buf) {
+		if (get_oid_hex(old_sha1_buf, &old_oid))
+			die("cannot parse %s as %s", old_sha1_buf, the_hash_algo->name);
+		old_oid_ptr = &old_oid;
+	}
 	if (get_oid_hex(new_sha1_buf, &new_oid))
 		die("cannot parse %s as %s", new_sha1_buf, the_hash_algo->name);
 
 	return refs_update_ref(refs, msg, refname,
-			       &new_oid, &old_oid,
+			       &new_oid, old_oid_ptr,
 			       flags, UPDATE_REFS_DIE_ON_ERR);
 }
 
diff --git a/t/helper/test-submodule.c b/t/helper/test-submodule.c
index 50c154d..7197969 100644
--- a/t/helper/test-submodule.c
+++ b/t/helper/test-submodule.c
@@ -9,12 +9,19 @@
 #include "submodule.h"
 
 #define TEST_TOOL_CHECK_NAME_USAGE \
-	"test-tool submodule check-name <name>"
+	"test-tool submodule check-name"
 static const char *submodule_check_name_usage[] = {
 	TEST_TOOL_CHECK_NAME_USAGE,
 	NULL
 };
 
+#define TEST_TOOL_CHECK_URL_USAGE \
+	"test-tool submodule check-url"
+static const char *submodule_check_url_usage[] = {
+	TEST_TOOL_CHECK_URL_USAGE,
+	NULL
+};
+
 #define TEST_TOOL_IS_ACTIVE_USAGE \
 	"test-tool submodule is-active <name>"
 static const char *submodule_is_active_usage[] = {
@@ -31,31 +38,26 @@
 
 static const char *submodule_usage[] = {
 	TEST_TOOL_CHECK_NAME_USAGE,
+	TEST_TOOL_CHECK_URL_USAGE,
 	TEST_TOOL_IS_ACTIVE_USAGE,
 	TEST_TOOL_RESOLVE_RELATIVE_URL_USAGE,
 	NULL
 };
 
+typedef int (*check_fn_t)(const char *);
+
 /*
- * Exit non-zero if any of the submodule names given on the command line is
- * invalid. If no names are given, filter stdin to print only valid names
- * (which is primarily intended for testing).
+ * Apply 'check_fn' to each line of stdin, printing values that pass the check
+ * to stdout.
  */
-static int check_name(int argc, const char **argv)
+static int check_submodule(check_fn_t check_fn)
 {
-	if (argc > 1) {
-		while (*++argv) {
-			if (check_submodule_name(*argv) < 0)
-				return 1;
-		}
-	} else {
-		struct strbuf buf = STRBUF_INIT;
-		while (strbuf_getline(&buf, stdin) != EOF) {
-			if (!check_submodule_name(buf.buf))
-				printf("%s\n", buf.buf);
-		}
-		strbuf_release(&buf);
+	struct strbuf buf = STRBUF_INIT;
+	while (strbuf_getline(&buf, stdin) != EOF) {
+		if (!check_fn(buf.buf))
+			printf("%s\n", buf.buf);
 	}
+	strbuf_release(&buf);
 	return 0;
 }
 
@@ -69,7 +71,20 @@
 	if (argc)
 		usage_with_options(submodule_check_name_usage, options);
 
-	return check_name(argc, argv);
+	return check_submodule(check_submodule_name);
+}
+
+static int cmd__submodule_check_url(int argc, const char **argv)
+{
+	struct option options[] = {
+		OPT_END()
+	};
+	argc = parse_options(argc, argv, "test-tools", options,
+			     submodule_check_url_usage, 0);
+	if (argc)
+		usage_with_options(submodule_check_url_usage, options);
+
+	return check_submodule(check_submodule_url);
 }
 
 static int cmd__submodule_is_active(int argc, const char **argv)
@@ -195,6 +210,7 @@
 
 static struct test_cmd cmds[] = {
 	{ "check-name", cmd__submodule_check_name },
+	{ "check-url", cmd__submodule_check_url },
 	{ "is-active", cmd__submodule_is_active },
 	{ "resolve-relative-url", cmd__submodule_resolve_relative_url},
 	{ "config-list", cmd__submodule_config_list },
diff --git a/t/helper/test-tool.c b/t/helper/test-tool.c
index 876cd2d..482a1e5 100644
--- a/t/helper/test-tool.c
+++ b/t/helper/test-tool.c
@@ -19,7 +19,6 @@
 	{ "config", cmd__config },
 	{ "crontab", cmd__crontab },
 	{ "csprng", cmd__csprng },
-	{ "ctype", cmd__ctype },
 	{ "date", cmd__date },
 	{ "delta", cmd__delta },
 	{ "dir-iterator", cmd__dir_iterator },
@@ -30,7 +29,6 @@
 	{ "dump-untracked-cache", cmd__dump_untracked_cache },
 	{ "env-helper", cmd__env_helper },
 	{ "example-decorate", cmd__example_decorate },
-	{ "fast-rebase", cmd__fast_rebase },
 	{ "find-pack", cmd__find_pack },
 	{ "fsmonitor-client", cmd__fsmonitor_client },
 	{ "genrandom", cmd__genrandom },
@@ -57,7 +55,6 @@
 	{ "path-utils", cmd__path_utils },
 	{ "pcre2-config", cmd__pcre2_config },
 	{ "pkt-line", cmd__pkt_line },
-	{ "prio-queue", cmd__prio_queue },
 	{ "proc-receive", cmd__proc_receive },
 	{ "progress", cmd__progress },
 	{ "reach", cmd__reach },
diff --git a/t/helper/test-tool.h b/t/helper/test-tool.h
index 70dd4eb..b1be7cf 100644
--- a/t/helper/test-tool.h
+++ b/t/helper/test-tool.h
@@ -12,7 +12,6 @@
 int cmd__config(int argc, const char **argv);
 int cmd__crontab(int argc, const char **argv);
 int cmd__csprng(int argc, const char **argv);
-int cmd__ctype(int argc, const char **argv);
 int cmd__date(int argc, const char **argv);
 int cmd__delta(int argc, const char **argv);
 int cmd__dir_iterator(int argc, const char **argv);
@@ -24,7 +23,6 @@
 int cmd__dump_reftable(int argc, const char **argv);
 int cmd__env_helper(int argc, const char **argv);
 int cmd__example_decorate(int argc, const char **argv);
-int cmd__fast_rebase(int argc, const char **argv);
 int cmd__find_pack(int argc, const char **argv);
 int cmd__fsmonitor_client(int argc, const char **argv);
 int cmd__genrandom(int argc, const char **argv);
@@ -50,7 +48,6 @@
 int cmd__path_utils(int argc, const char **argv);
 int cmd__pcre2_config(int argc, const char **argv);
 int cmd__pkt_line(int argc, const char **argv);
-int cmd__prio_queue(int argc, const char **argv);
 int cmd__proc_receive(int argc, const char **argv);
 int cmd__progress(int argc, const char **argv);
 int cmd__reach(int argc, const char **argv);
diff --git a/t/lib-httpd.sh b/t/lib-httpd.sh
index dbc9977..d83bafe 100644
--- a/t/lib-httpd.sh
+++ b/t/lib-httpd.sh
@@ -55,22 +55,31 @@
 
 HTTPD_PARA=""
 
-for DEFAULT_HTTPD_PATH in '/usr/sbin/httpd' '/usr/sbin/apache2'
+for DEFAULT_HTTPD_PATH in '/usr/sbin/httpd' \
+			  '/usr/sbin/apache2' \
+			  "$(command -v httpd)" \
+			  "$(command -v apache2)"
 do
-	if test -x "$DEFAULT_HTTPD_PATH"
+	if test -n "$DEFAULT_HTTPD_PATH" && test -x "$DEFAULT_HTTPD_PATH"
 	then
 		break
 	fi
 done
 
+if test -x "$DEFAULT_HTTPD_PATH"
+then
+	DETECTED_HTTPD_ROOT="$("$DEFAULT_HTTPD_PATH" -V 2>/dev/null | sed -n 's/^ -D HTTPD_ROOT="\(.*\)"$/\1/p')"
+fi
+
 for DEFAULT_HTTPD_MODULE_PATH in '/usr/libexec/apache2' \
 				 '/usr/lib/apache2/modules' \
 				 '/usr/lib64/httpd/modules' \
 				 '/usr/lib/httpd/modules' \
 				 '/usr/libexec/httpd' \
-				 '/usr/lib/apache2'
+				 '/usr/lib/apache2' \
+				 "${DETECTED_HTTPD_ROOT:+${DETECTED_HTTPD_ROOT}/modules}"
 do
-	if test -d "$DEFAULT_HTTPD_MODULE_PATH"
+	if test -n "$DEFAULT_HTTPD_MODULE_PATH" && test -d "$DEFAULT_HTTPD_MODULE_PATH"
 	then
 		break
 	fi
diff --git a/t/lib-httpd/passwd b/t/lib-httpd/passwd
index 99a34d6..d9c122f 100644
--- a/t/lib-httpd/passwd
+++ b/t/lib-httpd/passwd
@@ -1 +1 @@
-user@host:xb4E8pqD81KQs
+user@host:$apr1$LGPmCZWj$9vxEwj5Z5GzQLBMxp3mCx1
diff --git a/t/lib-httpd/proxy-passwd b/t/lib-httpd/proxy-passwd
index 77c2513..2ad7705 100644
--- a/t/lib-httpd/proxy-passwd
+++ b/t/lib-httpd/proxy-passwd
@@ -1 +1 @@
-proxuser:2x7tAukjAED5M
+proxuser:$apr1$RxS6MLkD$DYsqQdflheq4GPNxzJpx5.
diff --git a/t/perf/p5332-multi-pack-reuse.sh b/t/perf/p5332-multi-pack-reuse.sh
new file mode 100755
index 0000000..5c6c575
--- /dev/null
+++ b/t/perf/p5332-multi-pack-reuse.sh
@@ -0,0 +1,81 @@
+#!/bin/sh
+
+test_description='tests pack performance with multi-pack reuse'
+
+. ./perf-lib.sh
+. "${TEST_DIRECTORY}/perf/lib-pack.sh"
+
+packdir=.git/objects/pack
+
+test_perf_large_repo
+
+find_pack () {
+	for idx in $packdir/pack-*.idx
+	do
+		if git show-index <$idx | grep -q "$1"
+		then
+			basename $idx
+		fi || return 1
+	done
+}
+
+repack_into_n_chunks () {
+	git repack -adk &&
+
+	test "$1" -eq 1 && return ||
+
+	find $packdir -type f | sort >packs.before &&
+
+	# partition the repository into $1 chunks of consecutive commits, and
+	# then create $1 packs with the objects reachable from each chunk
+	# (excluding any objects reachable from the previous chunks)
+	sz="$(($(git rev-list --count --all) / $1))"
+	for rev in $(git rev-list --all | awk "NR % $sz == 0" | tac)
+	do
+		pack="$(echo "$rev" | git pack-objects --revs \
+			--honor-pack-keep --delta-base-offset $packdir/pack)" &&
+		touch $packdir/pack-$pack.keep || return 1
+	done
+
+	# grab any remaining objects not packed by the previous step(s)
+	git pack-objects --revs --all --honor-pack-keep --delta-base-offset \
+		$packdir/pack &&
+
+	find $packdir -type f | sort >packs.after &&
+
+	# and install the whole thing
+	for f in $(comm -12 packs.before packs.after)
+	do
+		rm -f "$f" || return 1
+	done
+	rm -fr $packdir/*.keep
+}
+
+for nr_packs in 1 10 100
+do
+	test_expect_success "create $nr_packs-pack scenario" '
+		repack_into_n_chunks $nr_packs
+	'
+
+	test_expect_success "setup bitmaps for $nr_packs-pack scenario" '
+		find $packdir -type f -name "*.idx" | sed -e "s/.*\/\(.*\)$/+\1/g" |
+		git multi-pack-index write --stdin-packs --bitmap \
+			--preferred-pack="$(find_pack $(git rev-parse HEAD))"
+	'
+
+	for reuse in single multi
+	do
+		test_perf "clone for $nr_packs-pack scenario ($reuse-pack reuse)" "
+			git for-each-ref --format='%(objectname)' refs/heads refs/tags >in &&
+			git -c pack.allowPackReuse=$reuse pack-objects \
+				--revs --delta-base-offset --use-bitmap-index \
+				--stdout <in >result
+		"
+
+		test_size "clone size for $nr_packs-pack scenario ($reuse-pack reuse)" '
+			wc -c <result
+		'
+	done
+done
+
+test_done
diff --git a/t/perf/p6300-for-each-ref.sh b/t/perf/p6300-for-each-ref.sh
new file mode 100755
index 0000000..fa7289c
--- /dev/null
+++ b/t/perf/p6300-for-each-ref.sh
@@ -0,0 +1,87 @@
+#!/bin/sh
+
+test_description='performance of for-each-ref'
+. ./perf-lib.sh
+
+test_perf_fresh_repo
+
+ref_count_per_type=10000
+test_iteration_count=10
+
+test_expect_success "setup" '
+	test_commit_bulk $(( 1 + $ref_count_per_type )) &&
+
+	# Create refs
+	test_seq $ref_count_per_type |
+		sed "s,.*,update refs/heads/branch_& HEAD~&\nupdate refs/custom/special_& HEAD~&," |
+		git update-ref --stdin &&
+
+	# Create annotated tags
+	for i in $(test_seq $ref_count_per_type)
+	do
+		# Base tags
+		echo "tag tag_$i" &&
+		echo "mark :$i" &&
+		echo "from HEAD~$i" &&
+		printf "tagger %s <%s> %s\n" \
+			"$GIT_COMMITTER_NAME" \
+			"$GIT_COMMITTER_EMAIL" \
+			"$GIT_COMMITTER_DATE" &&
+		echo "data <<EOF" &&
+		echo "tag $i" &&
+		echo "EOF" &&
+
+		# Nested tags
+		echo "tag nested_$i" &&
+		echo "from :$i" &&
+		printf "tagger %s <%s> %s\n" \
+			"$GIT_COMMITTER_NAME" \
+			"$GIT_COMMITTER_EMAIL" \
+			"$GIT_COMMITTER_DATE" &&
+		echo "data <<EOF" &&
+		echo "nested tag $i" &&
+		echo "EOF" || return 1
+	done | git fast-import
+'
+
+test_for_each_ref () {
+	title="for-each-ref"
+	if test $# -gt 0; then
+		title="$title ($1)"
+		shift
+	fi
+	args="$@"
+
+	test_perf "$title" "
+		for i in \$(test_seq $test_iteration_count); do
+			git for-each-ref $args >/dev/null
+		done
+	"
+}
+
+run_tests () {
+	test_for_each_ref "$1"
+	test_for_each_ref "$1, no sort" --no-sort
+	test_for_each_ref "$1, --count=1" --count=1
+	test_for_each_ref "$1, --count=1, no sort" --no-sort --count=1
+	test_for_each_ref "$1, tags" refs/tags/
+	test_for_each_ref "$1, tags, no sort" --no-sort refs/tags/
+	test_for_each_ref "$1, tags, dereferenced" '--format="%(refname) %(objectname) %(*objectname)"' refs/tags/
+	test_for_each_ref "$1, tags, dereferenced, no sort" --no-sort '--format="%(refname) %(objectname) %(*objectname)"' refs/tags/
+
+	test_perf "for-each-ref ($1, tags) + cat-file --batch-check (dereferenced)" "
+		for i in \$(test_seq $test_iteration_count); do
+			git for-each-ref --format='%(objectname)^{} %(refname) %(objectname)' refs/tags/ | \
+				git cat-file --batch-check='%(objectname) %(rest)' >/dev/null
+		done
+	"
+}
+
+run_tests "loose"
+
+test_expect_success 'pack refs' '
+	git pack-refs --all
+'
+run_tests "packed"
+
+test_done
diff --git a/t/perf/perf-lib.sh b/t/perf/perf-lib.sh
index def22e7..ab0c763 100644
--- a/t/perf/perf-lib.sh
+++ b/t/perf/perf-lib.sh
@@ -31,7 +31,7 @@
 GIT_CONFIG_SYSTEM="$TEST_DIRECTORY/perf/config"
 export GIT_CONFIG_SYSTEM
 
-if test -n "$GIT_TEST_INSTALLED" -a -z "$PERF_SET_GIT_TEST_INSTALLED"
+if test -n "$GIT_TEST_INSTALLED" && test -z "$PERF_SET_GIT_TEST_INSTALLED"
 then
 	error "Do not use GIT_TEST_INSTALLED with the perf tests.
 
diff --git a/t/perf/run b/t/perf/run
index 34115ed..486ead2 100755
--- a/t/perf/run
+++ b/t/perf/run
@@ -91,10 +91,10 @@
 run_dirs_helper () {
 	mydir=${1%/}
 	shift
-	while test $# -gt 0 -a "$1" != -- -a ! -f "$1"; do
+	while test $# -gt 0 && test "$1" != -- && test ! -f "$1"; do
 		shift
 	done
-	if test $# -gt 0 -a "$1" = --; then
+	if test $# -gt 0 && test "$1" = --; then
 		shift
 	fi
 
@@ -124,7 +124,7 @@
 }
 
 run_dirs () {
-	while test $# -gt 0 -a "$1" != -- -a ! -f "$1"; do
+	while test $# -gt 0 && test "$1" != -- && test ! -f "$1"; do
 		run_dirs_helper "$@"
 		shift
 	done
@@ -180,7 +180,8 @@
 	GIT_PERF_AGGREGATING_LATER=t
 	export GIT_PERF_AGGREGATING_LATER
 
-	if test $# = 0 -o "$1" = -- -o -f "$1"; then
+	if test $# = 0 || test "$1" = -- || test -f "$1"
+	then
 		set -- . "$@"
 	fi
 
diff --git a/t/t0001-init.sh b/t/t0001-init.sh
index 2b78e3b..b131d66 100755
--- a/t/t0001-init.sh
+++ b/t/t0001-init.sh
@@ -532,6 +532,76 @@
 	test_must_fail git -C sha256 init --object-format=sha1
 '
 
+test_expect_success DEFAULT_REPO_FORMAT 'extensions.refStorage is not allowed with repo version 0' '
+	test_when_finished "rm -rf refstorage" &&
+	git init refstorage &&
+	git -C refstorage config extensions.refStorage files &&
+	test_must_fail git -C refstorage rev-parse 2>err &&
+	grep "repo version is 0, but v1-only extension found" err
+'
+
+test_expect_success DEFAULT_REPO_FORMAT 'extensions.refStorage with files backend' '
+	test_when_finished "rm -rf refstorage" &&
+	git init refstorage &&
+	git -C refstorage config core.repositoryformatversion 1 &&
+	git -C refstorage config extensions.refStorage files &&
+	test_commit -C refstorage A &&
+	git -C refstorage rev-parse --verify HEAD
+'
+
+test_expect_success DEFAULT_REPO_FORMAT 'extensions.refStorage with unknown backend' '
+	test_when_finished "rm -rf refstorage" &&
+	git init refstorage &&
+	git -C refstorage config core.repositoryformatversion 1 &&
+	git -C refstorage config extensions.refStorage garbage &&
+	test_must_fail git -C refstorage rev-parse 2>err &&
+	grep "invalid value for ${SQ}extensions.refstorage${SQ}: ${SQ}garbage${SQ}" err
+'
+
+test_expect_success DEFAULT_REPO_FORMAT 'init with GIT_DEFAULT_REF_FORMAT=files' '
+	test_when_finished "rm -rf refformat" &&
+	GIT_DEFAULT_REF_FORMAT=files git init refformat &&
+	echo 0 >expect &&
+	git -C refformat config core.repositoryformatversion >actual &&
+	test_cmp expect actual &&
+	test_must_fail git -C refformat config extensions.refstorage
+'
+
+test_expect_success 'init with GIT_DEFAULT_REF_FORMAT=garbage' '
+	test_when_finished "rm -rf refformat" &&
+	cat >expect <<-EOF &&
+	fatal: unknown ref storage format ${SQ}garbage${SQ}
+	EOF
+	test_must_fail env GIT_DEFAULT_REF_FORMAT=garbage git init refformat 2>err &&
+	test_cmp expect err
+'
+
+test_expect_success 'init with --ref-format=files' '
+	test_when_finished "rm -rf refformat" &&
+	git init --ref-format=files refformat &&
+	echo files >expect &&
+	git -C refformat rev-parse --show-ref-format >actual &&
+	test_cmp expect actual
+'
+
+test_expect_success 're-init with same format' '
+	test_when_finished "rm -rf refformat" &&
+	git init --ref-format=files refformat &&
+	git init --ref-format=files refformat &&
+	echo files >expect &&
+	git -C refformat rev-parse --show-ref-format >actual &&
+	test_cmp expect actual
+'
+
+test_expect_success 'init with --ref-format=garbage' '
+	test_when_finished "rm -rf refformat" &&
+	cat >expect <<-EOF &&
+	fatal: unknown ref storage format ${SQ}garbage${SQ}
+	EOF
+	test_must_fail git init --ref-format=garbage refformat 2>err &&
+	test_cmp expect err
+'
+
 test_expect_success MINGW 'core.hidedotfiles = false' '
 	git config --global core.hidedotfiles false &&
 	rm -rf newdir &&
diff --git a/t/t0003-attributes.sh b/t/t0003-attributes.sh
index aee2298..774b52c 100755
--- a/t/t0003-attributes.sh
+++ b/t/t0003-attributes.sh
@@ -19,6 +19,20 @@
 	test_must_be_empty err
 }
 
+attr_check_object_mode_basic () {
+	path="$1" &&
+	expect="$2" &&
+	check_opts="$3" &&
+	git check-attr $check_opts builtin_objectmode -- "$path" >actual 2>err &&
+	echo "$path: builtin_objectmode: $expect" >expect &&
+	test_cmp expect actual
+}
+
+attr_check_object_mode () {
+	attr_check_object_mode_basic "$@" &&
+	test_must_be_empty err
+}
+
 attr_check_quote () {
 	path="$1" quoted_path="$2" expect="$3" &&
 
@@ -558,4 +572,66 @@
 	test_cmp expect err
 '
 
+test_expect_success 'builtin object mode attributes work (dir and regular paths)' '
+	>normal &&
+	attr_check_object_mode normal 100644 &&
+	mkdir dir &&
+	attr_check_object_mode dir 040000
+'
+
+test_expect_success POSIXPERM 'builtin object mode attributes work (executable)' '
+	>exec &&
+	chmod +x exec &&
+	attr_check_object_mode exec 100755
+'
+
+test_expect_success SYMLINKS 'builtin object mode attributes work (symlinks)' '
+	ln -s to_sym sym &&
+	attr_check_object_mode sym 120000
+'
+
+test_expect_success 'native object mode attributes work with --cached' '
+	>normal &&
+	git add normal &&
+	empty_blob=$(git rev-parse :normal) &&
+	git update-index --index-info <<-EOF &&
+	100755 $empty_blob 0	exec
+	120000 $empty_blob 0	symlink
+	EOF
+	attr_check_object_mode normal 100644 --cached &&
+	attr_check_object_mode exec 100755 --cached &&
+	attr_check_object_mode symlink 120000 --cached
+'
+
+test_expect_success 'check object mode attributes work for submodules' '
+	mkdir sub &&
+	(
+		cd sub &&
+		git init &&
+		mv .git .real &&
+		echo "gitdir: .real" >.git &&
+		test_commit first
+	) &&
+	attr_check_object_mode sub 160000 &&
+	attr_check_object_mode sub unspecified --cached &&
+	git add sub &&
+	attr_check_object_mode sub 160000 --cached
+'
+
+test_expect_success 'we do not allow user defined builtin_* attributes' '
+	echo "foo* builtin_foo" >.gitattributes &&
+	git add .gitattributes 2>actual &&
+	echo "builtin_foo is not a valid attribute name: .gitattributes:1" >expect &&
+	test_cmp expect actual
+'
+
+test_expect_success 'user defined builtin_objectmode values are ignored' '
+	echo "foo* builtin_objectmode=12345" >.gitattributes &&
+	git add .gitattributes &&
+	>foo_1 &&
+	attr_check_object_mode_basic foo_1 100644 &&
+	echo "builtin_objectmode is not a valid attribute name: .gitattributes:1" >expect &&
+	test_cmp expect err
+'
+
 test_done
diff --git a/t/t0009-prio-queue.sh b/t/t0009-prio-queue.sh
deleted file mode 100755
index eea9910..0000000
--- a/t/t0009-prio-queue.sh
+++ /dev/null
@@ -1,66 +0,0 @@
-#!/bin/sh
-
-test_description='basic tests for priority queue implementation'
-
-TEST_PASSES_SANITIZE_LEAK=true
-. ./test-lib.sh
-
-cat >expect <<'EOF'
-1
-2
-3
-4
-5
-5
-6
-7
-8
-9
-10
-EOF
-test_expect_success 'basic ordering' '
-	test-tool prio-queue 2 6 3 10 9 5 7 4 5 8 1 dump >actual &&
-	test_cmp expect actual
-'
-
-cat >expect <<'EOF'
-2
-3
-4
-1
-5
-6
-EOF
-test_expect_success 'mixed put and get' '
-	test-tool prio-queue 6 2 4 get 5 3 get get 1 dump >actual &&
-	test_cmp expect actual
-'
-
-cat >expect <<'EOF'
-1
-2
-NULL
-1
-2
-NULL
-EOF
-test_expect_success 'notice empty queue' '
-	test-tool prio-queue 1 2 get get get 1 2 get get get >actual &&
-	test_cmp expect actual
-'
-
-cat >expect <<'EOF'
-3
-2
-6
-4
-5
-1
-8
-EOF
-test_expect_success 'stack order' '
-	test-tool prio-queue stack 8 1 5 4 6 2 3 dump >actual &&
-	test_cmp expect actual
-'
-
-test_done
diff --git a/t/t0018-advice.sh b/t/t0018-advice.sh
index c13057a..0dcfb76 100755
--- a/t/t0018-advice.sh
+++ b/t/t0018-advice.sh
@@ -17,7 +17,6 @@
 test_expect_success 'advice should be printed when config variable is set to true' '
 	cat >expect <<-\EOF &&
 	hint: This is a piece of advice
-	hint: Disable this message with "git config advice.nestedTag false"
 	EOF
 	test_config advice.nestedTag true &&
 	test-tool advise "This is a piece of advice" 2>actual &&
diff --git a/t/t0024-crlf-archive.sh b/t/t0024-crlf-archive.sh
index a34de56..a7f4de4 100755
--- a/t/t0024-crlf-archive.sh
+++ b/t/t0024-crlf-archive.sh
@@ -9,7 +9,7 @@
 
 	git config core.autocrlf true &&
 
-	printf "CRLF line ending\r\nAnd another\r\n" > sample &&
+	printf "CRLF line ending\r\nAnd another\r\n" >sample &&
 	git add sample &&
 
 	test_tick &&
@@ -19,8 +19,9 @@
 
 test_expect_success 'tar archive' '
 
-	git archive --format=tar HEAD |
-	( mkdir untarred && cd untarred && "$TAR" -xf - ) &&
+	git archive --format=tar HEAD >test.tar &&
+	mkdir untarred &&
+	"$TAR" xf test.tar -C untarred &&
 
 	test_cmp sample untarred/sample
 
@@ -30,7 +31,11 @@
 
 	git archive --format=zip HEAD >test.zip &&
 
-	( mkdir unzipped && cd unzipped && "$GIT_UNZIP" ../test.zip ) &&
+	mkdir unzipped &&
+	(
+		cd unzipped &&
+		"$GIT_UNZIP" ../test.zip
+	) &&
 
 	test_cmp sample unzipped/sample
 
diff --git a/t/t0035-safe-bare-repository.sh b/t/t0035-safe-bare-repository.sh
index 038b8b7..8048856 100755
--- a/t/t0035-safe-bare-repository.sh
+++ b/t/t0035-safe-bare-repository.sh
@@ -78,4 +78,12 @@
 	expect_accepted_explicit "$pwd/outer-repo/bare-repo"
 '
 
+test_expect_success 'no trace when "bare repository" is .git' '
+	expect_accepted_implicit -C outer-repo/.git
+'
+
+test_expect_success 'no trace when "bare repository" is a subdir of .git' '
+	expect_accepted_implicit -C outer-repo/.git/objects
+'
+
 test_done
diff --git a/t/t0070-fundamental.sh b/t/t0070-fundamental.sh
index f18f928..0ecec2b 100755
--- a/t/t0070-fundamental.sh
+++ b/t/t0070-fundamental.sh
@@ -9,10 +9,6 @@
 TEST_PASSES_SANITIZE_LEAK=true
 . ./test-lib.sh
 
-test_expect_success 'character classes (isspace, isalpha etc.)' '
-	test-tool ctype
-'
-
 test_expect_success 'mktemp to nonexistent directory prints filename' '
 	test_must_fail test-tool mktemp doesnotexist/testXXXXXX 2>err &&
 	grep "doesnotexist/test" err
diff --git a/t/t0080-unit-test-output.sh b/t/t0080-unit-test-output.sh
new file mode 100755
index 0000000..6657c11
--- /dev/null
+++ b/t/t0080-unit-test-output.sh
@@ -0,0 +1,59 @@
+#!/bin/sh
+
+test_description='Test the output of the unit test framework'
+
+TEST_PASSES_SANITIZE_LEAK=true
+. ./test-lib.sh
+
+test_expect_success 'TAP output from unit tests' '
+	cat >expect <<-EOF &&
+	ok 1 - passing test
+	ok 2 - passing test and assertion return 1
+	# check "1 == 2" failed at t/unit-tests/t-basic.c:76
+	#    left: 1
+	#   right: 2
+	not ok 3 - failing test
+	ok 4 - failing test and assertion return 0
+	not ok 5 - passing TEST_TODO() # TODO
+	ok 6 - passing TEST_TODO() returns 1
+	# todo check ${SQ}check(x)${SQ} succeeded at t/unit-tests/t-basic.c:25
+	not ok 7 - failing TEST_TODO()
+	ok 8 - failing TEST_TODO() returns 0
+	# check "0" failed at t/unit-tests/t-basic.c:30
+	# skipping test - missing prerequisite
+	# skipping check ${SQ}1${SQ} at t/unit-tests/t-basic.c:32
+	ok 9 - test_skip() # SKIP
+	ok 10 - skipped test returns 1
+	# skipping test - missing prerequisite
+	ok 11 - test_skip() inside TEST_TODO() # SKIP
+	ok 12 - test_skip() inside TEST_TODO() returns 1
+	# check "0" failed at t/unit-tests/t-basic.c:48
+	not ok 13 - TEST_TODO() after failing check
+	ok 14 - TEST_TODO() after failing check returns 0
+	# check "0" failed at t/unit-tests/t-basic.c:56
+	not ok 15 - failing check after TEST_TODO()
+	ok 16 - failing check after TEST_TODO() returns 0
+	# check "!strcmp("\thello\\\\", "there\"\n")" failed at t/unit-tests/t-basic.c:61
+	#    left: "\011hello\\\\"
+	#   right: "there\"\012"
+	# check "!strcmp("NULL", NULL)" failed at t/unit-tests/t-basic.c:62
+	#    left: "NULL"
+	#   right: NULL
+	# check "${SQ}a${SQ} == ${SQ}\n${SQ}" failed at t/unit-tests/t-basic.c:63
+	#    left: ${SQ}a${SQ}
+	#   right: ${SQ}\012${SQ}
+	# check "${SQ}\\\\${SQ} == ${SQ}\\${SQ}${SQ}" failed at t/unit-tests/t-basic.c:64
+	#    left: ${SQ}\\\\${SQ}
+	#   right: ${SQ}\\${SQ}${SQ}
+	not ok 17 - messages from failing string and char comparison
+	# BUG: test has no checks at t/unit-tests/t-basic.c:91
+	not ok 18 - test with no checks
+	ok 19 - test with no checks returns 0
+	1..19
+	EOF
+
+	! "$GIT_BUILD_DIR"/t/unit-tests/bin/t-basic >actual &&
+	test_cmp expect actual
+'
+
+test_done
diff --git a/t/t0091-bugreport.sh b/t/t0091-bugreport.sh
index 8798fee..fca3904 100755
--- a/t/t0091-bugreport.sh
+++ b/t/t0091-bugreport.sh
@@ -39,9 +39,9 @@
 
 	sed -ne "/^\[System Info\]$/,/^$/p" <git-bugreport-format.txt >system &&
 
-	# The beginning should match "git version --build-info" verbatim,
+	# The beginning should match "git version --build-options" verbatim,
 	# but rather than checking bit-for-bit equality, just test some basics.
-	grep "git version [0-9]." system &&
+	grep "git version " system &&
 	grep "shell-path: ." system &&
 
 	# After the version, there should be some more info.
diff --git a/t/t0600-reffiles-backend.sh b/t/t0600-reffiles-backend.sh
new file mode 100755
index 0000000..e6a5f18
--- /dev/null
+++ b/t/t0600-reffiles-backend.sh
@@ -0,0 +1,384 @@
+#!/bin/sh
+
+test_description='Test reffiles backend'
+
+GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
+export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
+
+TEST_PASSES_SANITIZE_LEAK=true
+. ./test-lib.sh
+
+if ! test_have_prereq REFFILES
+then
+	skip_all='skipping reffiles specific tests'
+	test_done
+fi
+
+test_expect_success 'setup' '
+	git commit --allow-empty -m Initial &&
+	C=$(git rev-parse HEAD) &&
+	git commit --allow-empty -m Second &&
+	D=$(git rev-parse HEAD) &&
+	git commit --allow-empty -m Third &&
+	E=$(git rev-parse HEAD)
+'
+
+test_expect_success 'empty directory should not fool rev-parse' '
+	prefix=refs/e-rev-parse &&
+	git update-ref $prefix/foo $C &&
+	git pack-refs --all &&
+	mkdir -p .git/$prefix/foo/bar/baz &&
+	echo "$C" >expected &&
+	git rev-parse $prefix/foo >actual &&
+	test_cmp expected actual
+'
+
+test_expect_success 'empty directory should not fool for-each-ref' '
+	prefix=refs/e-for-each-ref &&
+	git update-ref $prefix/foo $C &&
+	git for-each-ref $prefix >expected &&
+	git pack-refs --all &&
+	mkdir -p .git/$prefix/foo/bar/baz &&
+	git for-each-ref $prefix >actual &&
+	test_cmp expected actual
+'
+
+test_expect_success 'empty directory should not fool create' '
+	prefix=refs/e-create &&
+	mkdir -p .git/$prefix/foo/bar/baz &&
+	printf "create %s $C\n" $prefix/foo |
+	git update-ref --stdin
+'
+
+test_expect_success 'empty directory should not fool verify' '
+	prefix=refs/e-verify &&
+	git update-ref $prefix/foo $C &&
+	git pack-refs --all &&
+	mkdir -p .git/$prefix/foo/bar/baz &&
+	printf "verify %s $C\n" $prefix/foo |
+	git update-ref --stdin
+'
+
+test_expect_success 'empty directory should not fool 1-arg update' '
+	prefix=refs/e-update-1 &&
+	git update-ref $prefix/foo $C &&
+	git pack-refs --all &&
+	mkdir -p .git/$prefix/foo/bar/baz &&
+	printf "update %s $D\n" $prefix/foo |
+	git update-ref --stdin
+'
+
+test_expect_success 'empty directory should not fool 2-arg update' '
+	prefix=refs/e-update-2 &&
+	git update-ref $prefix/foo $C &&
+	git pack-refs --all &&
+	mkdir -p .git/$prefix/foo/bar/baz &&
+	printf "update %s $D $C\n" $prefix/foo |
+	git update-ref --stdin
+'
+
+test_expect_success 'empty directory should not fool 0-arg delete' '
+	prefix=refs/e-delete-0 &&
+	git update-ref $prefix/foo $C &&
+	git pack-refs --all &&
+	mkdir -p .git/$prefix/foo/bar/baz &&
+	printf "delete %s\n" $prefix/foo |
+	git update-ref --stdin
+'
+
+test_expect_success 'empty directory should not fool 1-arg delete' '
+	prefix=refs/e-delete-1 &&
+	git update-ref $prefix/foo $C &&
+	git pack-refs --all &&
+	mkdir -p .git/$prefix/foo/bar/baz &&
+	printf "delete %s $C\n" $prefix/foo |
+	git update-ref --stdin
+'
+
+test_expect_success 'non-empty directory blocks create' '
+	prefix=refs/ne-create &&
+	mkdir -p .git/$prefix/foo/bar &&
+	: >.git/$prefix/foo/bar/baz.lock &&
+	test_when_finished "rm -f .git/$prefix/foo/bar/baz.lock" &&
+	cat >expected <<-EOF &&
+	fatal: cannot lock ref $SQ$prefix/foo$SQ: there is a non-empty directory $SQ.git/$prefix/foo$SQ blocking reference $SQ$prefix/foo$SQ
+	EOF
+	printf "%s\n" "update $prefix/foo $C" |
+	test_must_fail git update-ref --stdin 2>output.err &&
+	test_cmp expected output.err &&
+	cat >expected <<-EOF &&
+	fatal: cannot lock ref $SQ$prefix/foo$SQ: unable to resolve reference $SQ$prefix/foo$SQ
+	EOF
+	printf "%s\n" "update $prefix/foo $D $C" |
+	test_must_fail git update-ref --stdin 2>output.err &&
+	test_cmp expected output.err
+'
+
+test_expect_success 'broken reference blocks create' '
+	prefix=refs/broken-create &&
+	mkdir -p .git/$prefix &&
+	echo "gobbledigook" >.git/$prefix/foo &&
+	test_when_finished "rm -f .git/$prefix/foo" &&
+	cat >expected <<-EOF &&
+	fatal: cannot lock ref $SQ$prefix/foo$SQ: unable to resolve reference $SQ$prefix/foo$SQ: reference broken
+	EOF
+	printf "%s\n" "update $prefix/foo $C" |
+	test_must_fail git update-ref --stdin 2>output.err &&
+	test_cmp expected output.err &&
+	cat >expected <<-EOF &&
+	fatal: cannot lock ref $SQ$prefix/foo$SQ: unable to resolve reference $SQ$prefix/foo$SQ: reference broken
+	EOF
+	printf "%s\n" "update $prefix/foo $D $C" |
+	test_must_fail git update-ref --stdin 2>output.err &&
+	test_cmp expected output.err
+'
+
+test_expect_success 'non-empty directory blocks indirect create' '
+	prefix=refs/ne-indirect-create &&
+	git symbolic-ref $prefix/symref $prefix/foo &&
+	mkdir -p .git/$prefix/foo/bar &&
+	: >.git/$prefix/foo/bar/baz.lock &&
+	test_when_finished "rm -f .git/$prefix/foo/bar/baz.lock" &&
+	cat >expected <<-EOF &&
+	fatal: cannot lock ref $SQ$prefix/symref$SQ: there is a non-empty directory $SQ.git/$prefix/foo$SQ blocking reference $SQ$prefix/foo$SQ
+	EOF
+	printf "%s\n" "update $prefix/symref $C" |
+	test_must_fail git update-ref --stdin 2>output.err &&
+	test_cmp expected output.err &&
+	cat >expected <<-EOF &&
+	fatal: cannot lock ref $SQ$prefix/symref$SQ: unable to resolve reference $SQ$prefix/foo$SQ
+	EOF
+	printf "%s\n" "update $prefix/symref $D $C" |
+	test_must_fail git update-ref --stdin 2>output.err &&
+	test_cmp expected output.err
+'
+
+test_expect_success 'broken reference blocks indirect create' '
+	prefix=refs/broken-indirect-create &&
+	git symbolic-ref $prefix/symref $prefix/foo &&
+	echo "gobbledigook" >.git/$prefix/foo &&
+	test_when_finished "rm -f .git/$prefix/foo" &&
+	cat >expected <<-EOF &&
+	fatal: cannot lock ref $SQ$prefix/symref$SQ: unable to resolve reference $SQ$prefix/foo$SQ: reference broken
+	EOF
+	printf "%s\n" "update $prefix/symref $C" |
+	test_must_fail git update-ref --stdin 2>output.err &&
+	test_cmp expected output.err &&
+	cat >expected <<-EOF &&
+	fatal: cannot lock ref $SQ$prefix/symref$SQ: unable to resolve reference $SQ$prefix/foo$SQ: reference broken
+	EOF
+	printf "%s\n" "update $prefix/symref $D $C" |
+	test_must_fail git update-ref --stdin 2>output.err &&
+	test_cmp expected output.err
+'
+
+test_expect_success 'no bogus intermediate values during delete' '
+	prefix=refs/slow-transaction &&
+	# Set up a reference with differing loose and packed versions:
+	git update-ref $prefix/foo $C &&
+	git pack-refs --all &&
+	git update-ref $prefix/foo $D &&
+	# Now try to update the reference, but hold the `packed-refs` lock
+	# for a while to see what happens while the process is blocked:
+	: >.git/packed-refs.lock &&
+	test_when_finished "rm -f .git/packed-refs.lock" &&
+	{
+		# Note: the following command is intentionally run in the
+		# background. We increase the timeout so that `update-ref`
+		# attempts to acquire the `packed-refs` lock for much longer
+		# than it takes for us to do the check then delete it:
+		git -c core.packedrefstimeout=30000 update-ref -d $prefix/foo &
+	} &&
+	pid2=$! &&
+	# Give update-ref plenty of time to get to the point where it tries
+	# to lock packed-refs:
+	sleep 1 &&
+	# Make sure that update-ref did not complete despite the lock:
+	kill -0 $pid2 &&
+	# Verify that the reference still has its old value:
+	sha1=$(git rev-parse --verify --quiet $prefix/foo || echo undefined) &&
+	case "$sha1" in
+	$D)
+		# This is what we hope for; it means that nothing
+		# user-visible has changed yet.
+		: ;;
+	undefined)
+		# This is not correct; it means the deletion has happened
+		# already even though update-ref should not have been
+		# able to acquire the lock yet.
+		echo "$prefix/foo deleted prematurely" &&
+		break
+		;;
+	$C)
+		# This value should never be seen. Probably the loose
+		# reference has been deleted but the packed reference
+		# is still there:
+		echo "$prefix/foo incorrectly observed to be C" &&
+		break
+		;;
+	*)
+		# WTF?
+		echo "unexpected value observed for $prefix/foo: $sha1" &&
+		break
+		;;
+	esac >out &&
+	rm -f .git/packed-refs.lock &&
+	wait $pid2 &&
+	test_must_be_empty out &&
+	test_must_fail git rev-parse --verify --quiet $prefix/foo
+'
+
+test_expect_success 'delete fails cleanly if packed-refs file is locked' '
+	prefix=refs/locked-packed-refs &&
+	# Set up a reference with differing loose and packed versions:
+	git update-ref $prefix/foo $C &&
+	git pack-refs --all &&
+	git update-ref $prefix/foo $D &&
+	git for-each-ref $prefix >unchanged &&
+	# Now try to delete it while the `packed-refs` lock is held:
+	: >.git/packed-refs.lock &&
+	test_when_finished "rm -f .git/packed-refs.lock" &&
+	test_must_fail git update-ref -d $prefix/foo >out 2>err &&
+	git for-each-ref $prefix >actual &&
+	test_grep "Unable to create $SQ.*packed-refs.lock$SQ: " err &&
+	test_cmp unchanged actual
+'
+
+test_expect_success 'delete fails cleanly if packed-refs.new write fails' '
+	# Setup and expectations are similar to the test above.
+	prefix=refs/failed-packed-refs &&
+	git update-ref $prefix/foo $C &&
+	git pack-refs --all &&
+	git update-ref $prefix/foo $D &&
+	git for-each-ref $prefix >unchanged &&
+	# This should not happen in practice, but it is an easy way to get a
+	# reliable error (we open with create_tempfile(), which uses O_EXCL).
+	: >.git/packed-refs.new &&
+	test_when_finished "rm -f .git/packed-refs.new" &&
+	test_must_fail git update-ref -d $prefix/foo &&
+	git for-each-ref $prefix >actual &&
+	test_cmp unchanged actual
+'
+
+RWT="test-tool ref-store worktree:wt"
+RMAIN="test-tool ref-store worktree:main"
+
+test_expect_success 'setup worktree' '
+	test_commit first &&
+	git worktree add -b wt-main wt &&
+	(
+		cd wt &&
+		test_commit second
+	)
+'
+
+# Some refs (refs/bisect/*, pseudorefs) are kept per worktree, so they should
+# only appear in the for-each-reflog output if it is called from the correct
+# worktree, which is exercised in this test. This test is poorly written for
+# mulitple reasons: 1) it creates invalidly formatted log entres. 2) it uses
+# direct FS access for creating the reflogs. 3) PSEUDO-WT and refs/bisect/random
+# do not create reflogs by default, so it is not testing a realistic scenario.
+test_expect_success 'for_each_reflog()' '
+	echo $ZERO_OID > .git/logs/PSEUDO-MAIN &&
+	mkdir -p     .git/logs/refs/bisect &&
+	echo $ZERO_OID > .git/logs/refs/bisect/random &&
+
+	echo $ZERO_OID > .git/worktrees/wt/logs/PSEUDO-WT &&
+	mkdir -p     .git/worktrees/wt/logs/refs/bisect &&
+	echo $ZERO_OID > .git/worktrees/wt/logs/refs/bisect/wt-random &&
+
+	$RWT for-each-reflog | cut -d" " -f 2- | sort >actual &&
+	cat >expected <<-\EOF &&
+	HEAD 0x1
+	PSEUDO-WT 0x0
+	refs/bisect/wt-random 0x0
+	refs/heads/main 0x0
+	refs/heads/wt-main 0x0
+	EOF
+	test_cmp expected actual &&
+
+	$RMAIN for-each-reflog | cut -d" " -f 2- | sort >actual &&
+	cat >expected <<-\EOF &&
+	HEAD 0x1
+	PSEUDO-MAIN 0x0
+	refs/bisect/random 0x0
+	refs/heads/main 0x0
+	refs/heads/wt-main 0x0
+	EOF
+	test_cmp expected actual
+'
+
+# Triggering the bug detected by this test requires a newline to fall
+# exactly BUFSIZ-1 bytes from the end of the file. We don't know
+# what that value is, since it's platform dependent. However, if
+# we choose some value N, we also catch any D which divides N evenly
+# (since we will read backwards in chunks of D). So we choose 8K,
+# which catches glibc (with an 8K BUFSIZ) and *BSD (1K).
+#
+# Each line is 114 characters, so we need 75 to still have a few before the
+# last 8K. The 89-character padding on the final entry lines up our
+# newline exactly.
+test_expect_success SHA1 'parsing reverse reflogs at BUFSIZ boundaries' '
+	git checkout -b reflogskip &&
+	zf=$(test_oid zero_2) &&
+	ident="abc <xyz> 0000000001 +0000" &&
+	for i in $(test_seq 1 75); do
+		printf "$zf%02d $zf%02d %s\t" $i $(($i+1)) "$ident" &&
+		if test $i = 75; then
+			for j in $(test_seq 1 89); do
+				printf X || return 1
+			done
+		else
+			printf X
+		fi &&
+		printf "\n" || return 1
+	done >.git/logs/refs/heads/reflogskip &&
+	git rev-parse reflogskip@{73} >actual &&
+	echo ${zf}03 >expect &&
+	test_cmp expect actual
+'
+
+# This test takes a lock on an individual ref; this is not supported in
+# reftable.
+test_expect_success 'reflog expire operates on symref not referrent' '
+	git branch --create-reflog the_symref &&
+	git branch --create-reflog referrent &&
+	git update-ref referrent HEAD &&
+	git symbolic-ref refs/heads/the_symref refs/heads/referrent &&
+	test_when_finished "rm -f .git/refs/heads/referrent.lock" &&
+	touch .git/refs/heads/referrent.lock &&
+	git reflog expire --expire=all the_symref
+'
+
+test_expect_success 'empty reflog' '
+	test_when_finished "rm -rf empty" &&
+	git init empty &&
+	test_commit -C empty A &&
+	>empty/.git/logs/refs/heads/foo &&
+	git -C empty reflog expire --all 2>err &&
+	test_must_be_empty err
+'
+
+test_expect_success SYMLINKS 'ref resolution not confused by broken symlinks' '
+       ln -s does-not-exist .git/refs/heads/broken &&
+       test_must_fail git rev-parse --verify broken
+'
+
+test_expect_success 'log diagnoses bogus HEAD hash' '
+	git init empty &&
+	test_when_finished "rm -rf empty" &&
+	echo 1234abcd >empty/.git/refs/heads/main &&
+	test_must_fail git -C empty log 2>stderr &&
+	test_grep broken stderr
+'
+
+test_expect_success 'log diagnoses bogus HEAD symref' '
+	git init empty &&
+	test-tool -C empty ref-store main create-symref HEAD refs/heads/invalid.lock &&
+	test_must_fail git -C empty log 2>stderr &&
+	test_grep broken stderr &&
+	test_must_fail git -C empty log --default totally-bogus 2>stderr &&
+	test_grep broken stderr
+'
+
+test_done
diff --git a/t/t3210-pack-refs.sh b/t/t0601-reffiles-pack-refs.sh
similarity index 81%
rename from t/t3210-pack-refs.sh
rename to t/t0601-reffiles-pack-refs.sh
index 7f4e98d..c309d2b 100755
--- a/t/t3210-pack-refs.sh
+++ b/t/t0601-reffiles-pack-refs.sh
@@ -15,6 +15,12 @@
 TEST_PASSES_SANITIZE_LEAK=true
 . ./test-lib.sh
 
+if ! test_have_prereq REFFILES
+then
+	skip_all='skipping reffiles specific tests'
+	test_done
+fi
+
 test_expect_success 'enable reflogs' '
 	git config core.logallrefupdates true
 '
@@ -26,6 +32,14 @@
 	HEAD=$(git rev-parse --verify HEAD)
 '
 
+test_expect_success 'pack_refs(PACK_REFS_ALL | PACK_REFS_PRUNE)' '
+	N=`find .git/refs -type f | wc -l` &&
+	test "$N" != 0 &&
+	test-tool ref-store main pack-refs PACK_REFS_PRUNE,PACK_REFS_ALL &&
+	N=`find .git/refs -type f` &&
+	test -z "$N"
+'
+
 SHA1=
 
 test_expect_success 'see if git show-ref works as expected' '
@@ -294,4 +308,54 @@
 	test "$(test_readlink .git/packed-refs)" = "my-deviant-packed-refs"
 '
 
+# The 'packed-refs' file is stored directly in .git/. This means it is global
+# to the repository, and can only contain refs that are shared across all
+# worktrees.
+test_expect_success 'refs/worktree must not be packed' '
+	test_commit initial &&
+	test_commit wt1 &&
+	test_commit wt2 &&
+	git worktree add wt1 wt1 &&
+	git worktree add wt2 wt2 &&
+	git checkout initial &&
+	git update-ref refs/worktree/foo HEAD &&
+	git -C wt1 update-ref refs/worktree/foo HEAD &&
+	git -C wt2 update-ref refs/worktree/foo HEAD &&
+	git pack-refs --all &&
+	test_path_is_missing .git/refs/tags/wt1 &&
+	test_path_is_file .git/refs/worktree/foo &&
+	test_path_is_file .git/worktrees/wt1/refs/worktree/foo &&
+	test_path_is_file .git/worktrees/wt2/refs/worktree/foo
+'
+
+# we do not want to count on running pack-refs to
+# actually pack it, as it is perfectly reasonable to
+# skip processing a broken ref
+test_expect_success 'create packed-refs file with broken ref' '
+	test_tick && git commit --allow-empty -m one &&
+	recoverable=$(git rev-parse HEAD) &&
+	test_tick && git commit --allow-empty -m two &&
+	missing=$(git rev-parse HEAD) &&
+	rm -f .git/refs/heads/main &&
+	cat >.git/packed-refs <<-EOF &&
+	$missing refs/heads/main
+	$recoverable refs/heads/other
+	EOF
+	echo $missing >expect &&
+	git rev-parse refs/heads/main >actual &&
+	test_cmp expect actual
+'
+
+test_expect_success 'pack-refs does not silently delete broken packed ref' '
+	git pack-refs --all --prune &&
+	git rev-parse refs/heads/main >actual &&
+	test_cmp expect actual
+'
+
+test_expect_success 'pack-refs does not drop broken refs during deletion' '
+	git update-ref -d refs/heads/other &&
+	git rev-parse refs/heads/main >actual &&
+	test_cmp expect actual
+'
+
 test_done
diff --git a/t/t1091-sparse-checkout-builtin.sh b/t/t1091-sparse-checkout-builtin.sh
index f67611d..e49b802 100755
--- a/t/t1091-sparse-checkout-builtin.sh
+++ b/t/t1091-sparse-checkout-builtin.sh
@@ -334,7 +334,7 @@
 
 test_expect_success 'cone mode: add independent path' '
 	git -C repo sparse-checkout set deep/deeper1 &&
-	git -C repo sparse-checkout add folder1 &&
+	git -C repo sparse-checkout add --end-of-options folder1 &&
 	cat >expect <<-\EOF &&
 	/*
 	!/*/
@@ -886,6 +886,12 @@
 	grep ".gitignore.*is not a directory" error
 '
 
+test_expect_success 'error on mistyped command line options' '
+	test_must_fail git -C repo sparse-checkout add --sikp-checks .gitignore 2>error &&
+
+	grep "unknown option.*sikp-checks" error
+'
+
 test_expect_success 'by default, non-cone mode will warn on individual files' '
 	git -C repo sparse-checkout reapply --no-cone &&
 	git -C repo sparse-checkout add .gitignore 2>warning &&
diff --git a/t/t1300-config.sh b/t/t1300-config.sh
index f4e2752..31c3878 100755
--- a/t/t1300-config.sh
+++ b/t/t1300-config.sh
@@ -1098,15 +1098,20 @@
 	test_must_fail git config --file=linktolinktonada --list
 '
 
-test_expect_success 'check split_cmdline return' "
-	git config alias.split-cmdline-fix 'echo \"' &&
-	test_must_fail git split-cmdline-fix &&
-	echo foo > foo &&
-	git add foo &&
-	git commit -m 'initial commit' &&
-	git config branch.main.mergeoptions 'echo \"' &&
-	test_must_fail git merge main
-"
+test_expect_success 'check split_cmdline return' '
+	test_when_finished "rm -rf repo" &&
+	git init repo &&
+	(
+		cd repo &&
+		git config alias.split-cmdline-fix "echo \"" &&
+		test_must_fail git split-cmdline-fix &&
+		echo foo >foo &&
+		git add foo &&
+		git commit -m "initial commit" &&
+		git config branch.main.mergeoptions "echo \"" &&
+		test_must_fail git merge main
+	)
+'
 
 test_expect_success 'git -c "key=value" support' '
 	cat >expect <<-\EOF &&
@@ -1157,10 +1162,16 @@
 '
 
 test_expect_success 'aliases can be CamelCased' '
-	test_config alias.CamelCased "rev-parse HEAD" &&
-	git CamelCased >out &&
-	git rev-parse HEAD >expect &&
-	test_cmp expect out
+	test_when_finished "rm -rf repo" &&
+	git init repo &&
+	(
+		cd repo &&
+		test_commit A &&
+		git config alias.CamelCased "rev-parse HEAD" &&
+		git CamelCased >out &&
+		git rev-parse HEAD >expect &&
+		test_cmp expect out
+	)
 '
 
 test_expect_success 'git -c does not split values on equals' '
@@ -2009,11 +2020,11 @@
 '
 
 test_expect_success 'set up custom config file' '
-	CUSTOM_CONFIG_FILE="custom.conf" &&
-	cat >"$CUSTOM_CONFIG_FILE" <<-\EOF
+	cat >"custom.conf" <<-\EOF &&
 	[user]
 		custom = true
 	EOF
+	CUSTOM_CONFIG_FILE="$(test-tool path-utils real_path custom.conf)"
 '
 
 test_expect_success !MINGW 'set up custom config file with special name characters' '
@@ -2052,22 +2063,33 @@
 '
 
 test_expect_success '--show-origin blob' '
-	blob=$(git hash-object -w "$CUSTOM_CONFIG_FILE") &&
-	cat >expect <<-EOF &&
-	blob:$blob	user.custom=true
-	EOF
-	git config --blob=$blob --show-origin --list >output &&
-	test_cmp expect output
+	test_when_finished "rm -rf repo" &&
+	git init repo &&
+	(
+		cd repo &&
+		blob=$(git hash-object -w "$CUSTOM_CONFIG_FILE") &&
+		cat >expect <<-EOF &&
+		blob:$blob	user.custom=true
+		EOF
+		git config --blob=$blob --show-origin --list >output &&
+		test_cmp expect output
+	)
 '
 
 test_expect_success '--show-origin blob ref' '
-	cat >expect <<-\EOF &&
-	blob:main:custom.conf	user.custom=true
-	EOF
-	git add "$CUSTOM_CONFIG_FILE" &&
-	git commit -m "new config file" &&
-	git config --blob=main:"$CUSTOM_CONFIG_FILE" --show-origin --list >output &&
-	test_cmp expect output
+	test_when_finished "rm -rf repo" &&
+	git init repo &&
+	(
+		cd repo &&
+		cat >expect <<-\EOF &&
+		blob:main:custom.conf	user.custom=true
+		EOF
+		cp "$CUSTOM_CONFIG_FILE" custom.conf &&
+		git add custom.conf &&
+		git commit -m "new config file" &&
+		git config --blob=main:custom.conf --show-origin --list >output &&
+		test_cmp expect output
+	)
 '
 
 test_expect_success '--show-origin with --default' '
diff --git a/t/t1301-shared-repo.sh b/t/t1301-shared-repo.sh
index e5a0d65..8e2c01e 100755
--- a/t/t1301-shared-repo.sh
+++ b/t/t1301-shared-repo.sh
@@ -137,7 +137,7 @@
 	test_cmp expect actual
 '
 
-test_expect_success POSIXPERM 'git reflog expire honors core.sharedRepository' '
+test_expect_success REFFILES,POSIXPERM 'git reflog expire honors core.sharedRepository' '
 	umask 077 &&
 	git config core.sharedRepository group &&
 	git reflog expire --all &&
diff --git a/t/t1302-repo-version.sh b/t/t1302-repo-version.sh
index 179474f..42caa0d 100755
--- a/t/t1302-repo-version.sh
+++ b/t/t1302-repo-version.sh
@@ -9,10 +9,6 @@
 . ./test-lib.sh
 
 test_expect_success 'setup' '
-	test_oid_cache <<-\EOF &&
-	version sha1:0
-	version sha256:1
-	EOF
 	cat >test.patch <<-\EOF &&
 	diff --git a/test.txt b/test.txt
 	new file mode 100644
@@ -28,7 +24,12 @@
 '
 
 test_expect_success 'gitdir selection on normal repos' '
-	test_oid version >expect &&
+	if test_have_prereq DEFAULT_REPO_FORMAT
+	then
+		echo 0
+	else
+		echo 1
+	fi >expect &&
 	git config core.repositoryformatversion >actual &&
 	git -C test config core.repositoryformatversion >actual2 &&
 	test_cmp expect actual &&
@@ -79,8 +80,13 @@
 
 while read outcome version extensions; do
 	test_expect_success "$outcome version=$version $extensions" "
-		mkconfig $version $extensions >.git/config &&
-		check_${outcome}
+		test_when_finished 'rm -rf extensions' &&
+		git init extensions &&
+		(
+			cd extensions &&
+			mkconfig $version $extensions >.git/config &&
+			check_${outcome}
+		)
 	"
 done <<\EOF
 allow 0
@@ -94,7 +100,8 @@
 EOF
 
 test_expect_success 'precious-objects allowed' '
-	mkconfig 1 preciousObjects >.git/config &&
+	git config core.repositoryFormatVersion 1 &&
+	git config extensions.preciousObjects 1 &&
 	check_allow
 '
 
diff --git a/t/t1400-update-ref.sh b/t/t1400-update-ref.sh
index c41cd9b..78a09ab 100755
--- a/t/t1400-update-ref.sh
+++ b/t/t1400-update-ref.sh
@@ -9,8 +9,6 @@
 Z=$ZERO_OID
 
 m=refs/heads/main
-n_dir=refs/heads/gu
-n=$n_dir/fixes
 outside=refs/foo
 bare=bare-repo
 
@@ -62,10 +60,10 @@
 	test_must_fail git show-ref --verify -q $m
 '
 
-test_expect_success "fail to create $n" '
-	test_when_finished "rm -f .git/$n_dir" &&
-	touch .git/$n_dir &&
-	test_must_fail git update-ref $n $A
+test_expect_success "fail to create $n due to file/directory conflict" '
+	test_when_finished "git update-ref -d refs/heads/gu" &&
+	git update-ref refs/heads/gu $A &&
+	test_must_fail git update-ref refs/heads/gu/fixes $A
 '
 
 test_expect_success "create $m (by HEAD)" '
@@ -92,7 +90,8 @@
 	git symbolic-ref HEAD $m &&
 	git update-ref -m delete-$m -d $m &&
 	test_must_fail git show-ref --verify -q $m &&
-	grep "delete-$m$" .git/logs/HEAD
+	test-tool ref-store main for-each-reflog-ent HEAD >actual &&
+	grep "delete-$m$" actual
 '
 
 test_expect_success "deleting by HEAD adds message to HEAD's log" '
@@ -101,7 +100,8 @@
 	git symbolic-ref HEAD $m &&
 	git update-ref -m delete-by-head -d HEAD &&
 	test_must_fail git show-ref --verify -q $m &&
-	grep "delete-by-head$" .git/logs/HEAD
+	test-tool ref-store main for-each-reflog-ent HEAD >actual &&
+	grep "delete-by-head$" actual
 '
 
 test_expect_success 'update-ref does not create reflogs by default' '
@@ -132,7 +132,7 @@
 
 test_expect_success 'core.logAllRefUpdates=true creates reflog in bare repository' '
 	test_when_finished "git -C $bare config --unset core.logAllRefUpdates && \
-		rm $bare/logs/$m" &&
+		test-tool ref-store main delete-reflog $m" &&
 	git -C $bare config core.logAllRefUpdates true &&
 	git -C $bare update-ref $m $bareB &&
 	git -C $bare rev-parse $bareB >expect &&
@@ -221,27 +221,27 @@
 '
 
 test_expect_success 'update-ref -d is not confused by self-reference' '
+	test_when_finished "test-tool ref-store main delete-refs REF_NO_DEREF refs/heads/self" &&
 	git symbolic-ref refs/heads/self refs/heads/self &&
-	test_when_finished "rm -f .git/refs/heads/self" &&
-	test_path_is_file .git/refs/heads/self &&
+	git symbolic-ref --no-recurse refs/heads/self &&
 	test_must_fail git update-ref -d refs/heads/self &&
-	test_path_is_file .git/refs/heads/self
+	git symbolic-ref --no-recurse refs/heads/self
 '
 
 test_expect_success 'update-ref --no-deref -d can delete self-reference' '
+	test_when_finished "test-tool ref-store main delete-refs REF_NO_DEREF refs/heads/self" &&
 	git symbolic-ref refs/heads/self refs/heads/self &&
-	test_when_finished "rm -f .git/refs/heads/self" &&
-	test_path_is_file .git/refs/heads/self &&
+	git symbolic-ref --no-recurse refs/heads/self &&
 	git update-ref --no-deref -d refs/heads/self &&
 	test_must_fail git show-ref --verify -q refs/heads/self
 '
 
-test_expect_success 'update-ref --no-deref -d can delete reference to bad ref' '
+test_expect_success REFFILES 'update-ref --no-deref -d can delete reference to bad ref' '
 	>.git/refs/heads/bad &&
 	test_when_finished "rm -f .git/refs/heads/bad" &&
 	git symbolic-ref refs/heads/ref-to-bad refs/heads/bad &&
 	test_when_finished "git update-ref -d refs/heads/ref-to-bad" &&
-	test_path_is_file .git/refs/heads/ref-to-bad &&
+	git symbolic-ref --no-recurse refs/heads/ref-to-bad &&
 	git update-ref --no-deref -d refs/heads/ref-to-bad &&
 	test_must_fail git show-ref --verify -q refs/heads/ref-to-bad
 '
@@ -265,7 +265,10 @@
 	! test $B = $(git show-ref -s --verify $m)
 '
 
-rm -f .git/logs/refs/heads/main
+test_expect_success "clean up reflog" '
+	test-tool ref-store main delete-reflog $m
+'
+
 test_expect_success "create $m (logged by touch)" '
 	test_config core.logAllRefUpdates false &&
 	GIT_COMMITTER_DATE="2005-05-26 23:30" \
@@ -285,7 +288,7 @@
 	test $A = $(git show-ref -s --verify $m)
 '
 
-test_expect_success 'empty directory removal' '
+test_expect_success REFFILES 'empty directory removal' '
 	git branch d1/d2/r1 HEAD &&
 	git branch d1/r2 HEAD &&
 	test_path_is_file .git/refs/heads/d1/d2/r1 &&
@@ -297,7 +300,7 @@
 	test_path_is_file .git/logs/refs/heads/d1/r2
 '
 
-test_expect_success 'symref empty directory removal' '
+test_expect_success REFFILES 'symref empty directory removal' '
 	git branch e1/e2/r1 HEAD &&
 	git branch e1/r2 HEAD &&
 	git checkout e1/e2/r1 &&
@@ -318,7 +321,7 @@
 $B $A $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> 1117150860 +0000
 EOF
 test_expect_success "verifying $m's log (logged by touch)" '
-	test_when_finished "git update-ref -d $m && rm -rf .git/logs actual expect" &&
+	test_when_finished "git update-ref -d $m && git reflog expire --expire=all --all && rm -rf actual expect" &&
 	test-tool ref-store main for-each-reflog-ent $m >actual &&
 	test_cmp actual expect
 '
@@ -348,7 +351,7 @@
 $B $A $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> 1117150980 +0000
 EOF
 test_expect_success "verifying $m's log (logged by config)" '
-	test_when_finished "git update-ref -d $m && rm -rf .git/logs actual expect" &&
+	test_when_finished "git update-ref -d $m && git reflog expire --expire=all --all && rm -rf actual expect" &&
 	test-tool ref-store main for-each-reflog-ent $m >actual &&
 	test_cmp actual expect
 '
@@ -447,7 +450,8 @@
 	test_grep -F "warning: log for ref $m unexpectedly ended on $ld" e
 '
 
-rm -f .git/$m .git/logs/$m expect
+rm -f expect
+git update-ref -d $m
 
 test_expect_success REFFILES 'query reflog with gap' '
 	test_when_finished "git update-ref -d $m" &&
@@ -520,51 +524,51 @@
 
 test_expect_success 'create pseudoref' '
 	git update-ref PSEUDOREF $A &&
-	test $A = $(git rev-parse PSEUDOREF)
+	test $A = $(git show-ref -s --verify PSEUDOREF)
 '
 
 test_expect_success 'overwrite pseudoref with no old value given' '
 	git update-ref PSEUDOREF $B &&
-	test $B = $(git rev-parse PSEUDOREF)
+	test $B = $(git show-ref -s --verify PSEUDOREF)
 '
 
 test_expect_success 'overwrite pseudoref with correct old value' '
 	git update-ref PSEUDOREF $C $B &&
-	test $C = $(git rev-parse PSEUDOREF)
+	test $C = $(git show-ref -s --verify PSEUDOREF)
 '
 
 test_expect_success 'do not overwrite pseudoref with wrong old value' '
 	test_must_fail git update-ref PSEUDOREF $D $E 2>err &&
-	test $C = $(git rev-parse PSEUDOREF) &&
+	test $C = $(git show-ref -s --verify PSEUDOREF) &&
 	test_grep "cannot lock ref.*expected" err
 '
 
 test_expect_success 'delete pseudoref' '
 	git update-ref -d PSEUDOREF &&
-	test_must_fail git rev-parse PSEUDOREF
+	test_must_fail git show-ref -s --verify PSEUDOREF
 '
 
 test_expect_success 'do not delete pseudoref with wrong old value' '
 	git update-ref PSEUDOREF $A &&
 	test_must_fail git update-ref -d PSEUDOREF $B 2>err &&
-	test $A = $(git rev-parse PSEUDOREF) &&
+	test $A = $(git show-ref -s --verify PSEUDOREF) &&
 	test_grep "cannot lock ref.*expected" err
 '
 
 test_expect_success 'delete pseudoref with correct old value' '
 	git update-ref -d PSEUDOREF $A &&
-	test_must_fail git rev-parse PSEUDOREF
+	test_must_fail git show-ref -s --verify PSEUDOREF
 '
 
 test_expect_success 'create pseudoref with old OID zero' '
 	git update-ref PSEUDOREF $A $Z &&
-	test $A = $(git rev-parse PSEUDOREF)
+	test $A = $(git show-ref -s --verify PSEUDOREF)
 '
 
 test_expect_success 'do not overwrite pseudoref with old OID zero' '
 	test_when_finished git update-ref -d PSEUDOREF &&
 	test_must_fail git update-ref PSEUDOREF $B $Z 2>err &&
-	test $A = $(git rev-parse PSEUDOREF) &&
+	test $A = $(git show-ref -s --verify PSEUDOREF) &&
 	test_grep "already exists" err
 '
 
@@ -1664,7 +1668,7 @@
 	test_cmp expected actual
 '
 
-test_expect_success 'directory not created deleting packed ref' '
+test_expect_success REFFILES 'directory not created deleting packed ref' '
 	git branch d1/d2/r1 HEAD &&
 	git pack-refs --all &&
 	test_path_is_missing .git/refs/heads/d1/d2 &&
diff --git a/t/t1401-symbolic-ref.sh b/t/t1401-symbolic-ref.sh
index 3241d35..5c60d6f 100755
--- a/t/t1401-symbolic-ref.sh
+++ b/t/t1401-symbolic-ref.sh
@@ -106,9 +106,8 @@
 '
 
 test_expect_success 'symbolic-ref reports failure in exit code' '
-	test_when_finished "rm -f .git/HEAD.lock" &&
-	>.git/HEAD.lock &&
-	test_must_fail git symbolic-ref HEAD refs/heads/whatever
+	# Create d/f conflict to simulate failure.
+	test_must_fail git symbolic-ref refs/heads refs/heads/foo
 '
 
 test_expect_success 'symbolic-ref writes reflog entry' '
diff --git a/t/t1403-show-ref.sh b/t/t1403-show-ref.sh
index 872ba8f..33fb7a3 100755
--- a/t/t1403-show-ref.sh
+++ b/t/t1403-show-ref.sh
@@ -174,6 +174,14 @@
 	test_must_be_empty actual
 '
 
+test_expect_success 'show-ref --verify pseudorefs' '
+	git update-ref CHERRY_PICK_HEAD HEAD $ZERO_OID &&
+	test_when_finished "git update-ref -d CHERRY_PICK_HEAD" &&
+	git show-ref -s --verify HEAD >actual &&
+	git show-ref -s --verify CHERRY_PICK_HEAD >expect &&
+	test_cmp actual expect
+'
+
 test_expect_success 'show-ref --verify with dangling ref' '
 	sha1_file() {
 		echo "$*" | sed "s#..#.git/objects/&/#"
@@ -268,4 +276,14 @@
 	test_cmp expect err
 '
 
+test_expect_success '--exists with non-existent special ref' '
+	test_expect_code 2 git show-ref --exists FETCH_HEAD
+'
+
+test_expect_success '--exists with existing special ref' '
+	test_when_finished "rm .git/FETCH_HEAD" &&
+	git rev-parse HEAD >.git/FETCH_HEAD &&
+	git show-ref --exists FETCH_HEAD
+'
+
 test_done
diff --git a/t/t1404-update-ref-errors.sh b/t/t1404-update-ref-errors.sh
index 0369bee..00b7013 100755
--- a/t/t1404-update-ref-errors.sh
+++ b/t/t1404-update-ref-errors.sh
@@ -191,78 +191,6 @@
 
 '
 
-test_expect_success REFFILES 'empty directory should not fool rev-parse' '
-	prefix=refs/e-rev-parse &&
-	git update-ref $prefix/foo $C &&
-	git pack-refs --all &&
-	mkdir -p .git/$prefix/foo/bar/baz &&
-	echo "$C" >expected &&
-	git rev-parse $prefix/foo >actual &&
-	test_cmp expected actual
-'
-
-test_expect_success REFFILES 'empty directory should not fool for-each-ref' '
-	prefix=refs/e-for-each-ref &&
-	git update-ref $prefix/foo $C &&
-	git for-each-ref $prefix >expected &&
-	git pack-refs --all &&
-	mkdir -p .git/$prefix/foo/bar/baz &&
-	git for-each-ref $prefix >actual &&
-	test_cmp expected actual
-'
-
-test_expect_success REFFILES 'empty directory should not fool create' '
-	prefix=refs/e-create &&
-	mkdir -p .git/$prefix/foo/bar/baz &&
-	printf "create %s $C\n" $prefix/foo |
-	git update-ref --stdin
-'
-
-test_expect_success REFFILES 'empty directory should not fool verify' '
-	prefix=refs/e-verify &&
-	git update-ref $prefix/foo $C &&
-	git pack-refs --all &&
-	mkdir -p .git/$prefix/foo/bar/baz &&
-	printf "verify %s $C\n" $prefix/foo |
-	git update-ref --stdin
-'
-
-test_expect_success REFFILES 'empty directory should not fool 1-arg update' '
-	prefix=refs/e-update-1 &&
-	git update-ref $prefix/foo $C &&
-	git pack-refs --all &&
-	mkdir -p .git/$prefix/foo/bar/baz &&
-	printf "update %s $D\n" $prefix/foo |
-	git update-ref --stdin
-'
-
-test_expect_success REFFILES 'empty directory should not fool 2-arg update' '
-	prefix=refs/e-update-2 &&
-	git update-ref $prefix/foo $C &&
-	git pack-refs --all &&
-	mkdir -p .git/$prefix/foo/bar/baz &&
-	printf "update %s $D $C\n" $prefix/foo |
-	git update-ref --stdin
-'
-
-test_expect_success REFFILES 'empty directory should not fool 0-arg delete' '
-	prefix=refs/e-delete-0 &&
-	git update-ref $prefix/foo $C &&
-	git pack-refs --all &&
-	mkdir -p .git/$prefix/foo/bar/baz &&
-	printf "delete %s\n" $prefix/foo |
-	git update-ref --stdin
-'
-
-test_expect_success REFFILES 'empty directory should not fool 1-arg delete' '
-	prefix=refs/e-delete-1 &&
-	git update-ref $prefix/foo $C &&
-	git pack-refs --all &&
-	mkdir -p .git/$prefix/foo/bar/baz &&
-	printf "delete %s $C\n" $prefix/foo |
-	git update-ref --stdin
-'
-
 test_expect_success REFFILES 'D/F conflict prevents add long + delete short' '
 	df_test refs/df-al-ds --add-del foo/bar foo
 '
@@ -468,169 +396,4 @@
 	test_cmp expected output.err
 '
 
-test_expect_success REFFILES 'non-empty directory blocks create' '
-	prefix=refs/ne-create &&
-	mkdir -p .git/$prefix/foo/bar &&
-	: >.git/$prefix/foo/bar/baz.lock &&
-	test_when_finished "rm -f .git/$prefix/foo/bar/baz.lock" &&
-	cat >expected <<-EOF &&
-	fatal: cannot lock ref $SQ$prefix/foo$SQ: there is a non-empty directory $SQ.git/$prefix/foo$SQ blocking reference $SQ$prefix/foo$SQ
-	EOF
-	printf "%s\n" "update $prefix/foo $C" |
-	test_must_fail git update-ref --stdin 2>output.err &&
-	test_cmp expected output.err &&
-	cat >expected <<-EOF &&
-	fatal: cannot lock ref $SQ$prefix/foo$SQ: unable to resolve reference $SQ$prefix/foo$SQ
-	EOF
-	printf "%s\n" "update $prefix/foo $D $C" |
-	test_must_fail git update-ref --stdin 2>output.err &&
-	test_cmp expected output.err
-'
-
-test_expect_success REFFILES 'broken reference blocks create' '
-	prefix=refs/broken-create &&
-	mkdir -p .git/$prefix &&
-	echo "gobbledigook" >.git/$prefix/foo &&
-	test_when_finished "rm -f .git/$prefix/foo" &&
-	cat >expected <<-EOF &&
-	fatal: cannot lock ref $SQ$prefix/foo$SQ: unable to resolve reference $SQ$prefix/foo$SQ: reference broken
-	EOF
-	printf "%s\n" "update $prefix/foo $C" |
-	test_must_fail git update-ref --stdin 2>output.err &&
-	test_cmp expected output.err &&
-	cat >expected <<-EOF &&
-	fatal: cannot lock ref $SQ$prefix/foo$SQ: unable to resolve reference $SQ$prefix/foo$SQ: reference broken
-	EOF
-	printf "%s\n" "update $prefix/foo $D $C" |
-	test_must_fail git update-ref --stdin 2>output.err &&
-	test_cmp expected output.err
-'
-
-test_expect_success REFFILES 'non-empty directory blocks indirect create' '
-	prefix=refs/ne-indirect-create &&
-	git symbolic-ref $prefix/symref $prefix/foo &&
-	mkdir -p .git/$prefix/foo/bar &&
-	: >.git/$prefix/foo/bar/baz.lock &&
-	test_when_finished "rm -f .git/$prefix/foo/bar/baz.lock" &&
-	cat >expected <<-EOF &&
-	fatal: cannot lock ref $SQ$prefix/symref$SQ: there is a non-empty directory $SQ.git/$prefix/foo$SQ blocking reference $SQ$prefix/foo$SQ
-	EOF
-	printf "%s\n" "update $prefix/symref $C" |
-	test_must_fail git update-ref --stdin 2>output.err &&
-	test_cmp expected output.err &&
-	cat >expected <<-EOF &&
-	fatal: cannot lock ref $SQ$prefix/symref$SQ: unable to resolve reference $SQ$prefix/foo$SQ
-	EOF
-	printf "%s\n" "update $prefix/symref $D $C" |
-	test_must_fail git update-ref --stdin 2>output.err &&
-	test_cmp expected output.err
-'
-
-test_expect_success REFFILES 'broken reference blocks indirect create' '
-	prefix=refs/broken-indirect-create &&
-	git symbolic-ref $prefix/symref $prefix/foo &&
-	echo "gobbledigook" >.git/$prefix/foo &&
-	test_when_finished "rm -f .git/$prefix/foo" &&
-	cat >expected <<-EOF &&
-	fatal: cannot lock ref $SQ$prefix/symref$SQ: unable to resolve reference $SQ$prefix/foo$SQ: reference broken
-	EOF
-	printf "%s\n" "update $prefix/symref $C" |
-	test_must_fail git update-ref --stdin 2>output.err &&
-	test_cmp expected output.err &&
-	cat >expected <<-EOF &&
-	fatal: cannot lock ref $SQ$prefix/symref$SQ: unable to resolve reference $SQ$prefix/foo$SQ: reference broken
-	EOF
-	printf "%s\n" "update $prefix/symref $D $C" |
-	test_must_fail git update-ref --stdin 2>output.err &&
-	test_cmp expected output.err
-'
-
-test_expect_success REFFILES 'no bogus intermediate values during delete' '
-	prefix=refs/slow-transaction &&
-	# Set up a reference with differing loose and packed versions:
-	git update-ref $prefix/foo $C &&
-	git pack-refs --all &&
-	git update-ref $prefix/foo $D &&
-	# Now try to update the reference, but hold the `packed-refs` lock
-	# for a while to see what happens while the process is blocked:
-	: >.git/packed-refs.lock &&
-	test_when_finished "rm -f .git/packed-refs.lock" &&
-	{
-		# Note: the following command is intentionally run in the
-		# background. We increase the timeout so that `update-ref`
-		# attempts to acquire the `packed-refs` lock for much longer
-		# than it takes for us to do the check then delete it:
-		git -c core.packedrefstimeout=30000 update-ref -d $prefix/foo &
-	} &&
-	pid2=$! &&
-	# Give update-ref plenty of time to get to the point where it tries
-	# to lock packed-refs:
-	sleep 1 &&
-	# Make sure that update-ref did not complete despite the lock:
-	kill -0 $pid2 &&
-	# Verify that the reference still has its old value:
-	sha1=$(git rev-parse --verify --quiet $prefix/foo || echo undefined) &&
-	case "$sha1" in
-	$D)
-		# This is what we hope for; it means that nothing
-		# user-visible has changed yet.
-		: ;;
-	undefined)
-		# This is not correct; it means the deletion has happened
-		# already even though update-ref should not have been
-		# able to acquire the lock yet.
-		echo "$prefix/foo deleted prematurely" &&
-		break
-		;;
-	$C)
-		# This value should never be seen. Probably the loose
-		# reference has been deleted but the packed reference
-		# is still there:
-		echo "$prefix/foo incorrectly observed to be C" &&
-		break
-		;;
-	*)
-		# WTF?
-		echo "unexpected value observed for $prefix/foo: $sha1" &&
-		break
-		;;
-	esac >out &&
-	rm -f .git/packed-refs.lock &&
-	wait $pid2 &&
-	test_must_be_empty out &&
-	test_must_fail git rev-parse --verify --quiet $prefix/foo
-'
-
-test_expect_success REFFILES 'delete fails cleanly if packed-refs file is locked' '
-	prefix=refs/locked-packed-refs &&
-	# Set up a reference with differing loose and packed versions:
-	git update-ref $prefix/foo $C &&
-	git pack-refs --all &&
-	git update-ref $prefix/foo $D &&
-	git for-each-ref $prefix >unchanged &&
-	# Now try to delete it while the `packed-refs` lock is held:
-	: >.git/packed-refs.lock &&
-	test_when_finished "rm -f .git/packed-refs.lock" &&
-	test_must_fail git update-ref -d $prefix/foo >out 2>err &&
-	git for-each-ref $prefix >actual &&
-	test_grep "Unable to create $SQ.*packed-refs.lock$SQ: " err &&
-	test_cmp unchanged actual
-'
-
-test_expect_success REFFILES 'delete fails cleanly if packed-refs.new write fails' '
-	# Setup and expectations are similar to the test above.
-	prefix=refs/failed-packed-refs &&
-	git update-ref $prefix/foo $C &&
-	git pack-refs --all &&
-	git update-ref $prefix/foo $D &&
-	git for-each-ref $prefix >unchanged &&
-	# This should not happen in practice, but it is an easy way to get a
-	# reliable error (we open with create_tempfile(), which uses O_EXCL).
-	: >.git/packed-refs.new &&
-	test_when_finished "rm -f .git/packed-refs.new" &&
-	test_must_fail git update-ref -d $prefix/foo &&
-	git for-each-ref $prefix >actual &&
-	test_cmp unchanged actual
-'
-
 test_done
diff --git a/t/t1405-main-ref-store.sh b/t/t1405-main-ref-store.sh
index e4627cf..976bd71 100755
--- a/t/t1405-main-ref-store.sh
+++ b/t/t1405-main-ref-store.sh
@@ -15,14 +15,6 @@
 	test_commit one
 '
 
-test_expect_success REFFILES 'pack_refs(PACK_REFS_ALL | PACK_REFS_PRUNE)' '
-	N=`find .git/refs -type f | wc -l` &&
-	test "$N" != 0 &&
-	$RUN pack-refs PACK_REFS_PRUNE,PACK_REFS_ALL &&
-	N=`find .git/refs -type f` &&
-	test -z "$N"
-'
-
 test_expect_success 'create_symref(FOO, refs/heads/main)' '
 	$RUN create-symref FOO refs/heads/main nothing &&
 	echo refs/heads/main >expected &&
@@ -112,7 +104,7 @@
 	test_must_fail git reflog exists HEAD
 '
 
-test_expect_success REFFILES 'create-reflog(HEAD)' '
+test_expect_success 'create-reflog(HEAD)' '
 	$RUN create-reflog HEAD &&
 	git reflog exists HEAD
 '
diff --git a/t/t1407-worktree-ref-store.sh b/t/t1407-worktree-ref-store.sh
index 05b1881..48b1c92 100755
--- a/t/t1407-worktree-ref-store.sh
+++ b/t/t1407-worktree-ref-store.sh
@@ -53,41 +53,4 @@
 	test_cmp expected actual
 '
 
-# Some refs (refs/bisect/*, pseudorefs) are kept per worktree, so they should
-# only appear in the for-each-reflog output if it is called from the correct
-# worktree, which is exercised in this test. This test is poorly written (and
-# therefore marked REFFILES) for mulitple reasons: 1) it creates invalidly
-# formatted log entres. 2) it uses direct FS access for creating the reflogs. 3)
-# PSEUDO-WT and refs/bisect/random do not create reflogs by default, so it is
-# not testing a realistic scenario.
-test_expect_success REFFILES 'for_each_reflog()' '
-	echo $ZERO_OID > .git/logs/PSEUDO-MAIN &&
-	mkdir -p     .git/logs/refs/bisect &&
-	echo $ZERO_OID > .git/logs/refs/bisect/random &&
-
-	echo $ZERO_OID > .git/worktrees/wt/logs/PSEUDO-WT &&
-	mkdir -p     .git/worktrees/wt/logs/refs/bisect &&
-	echo $ZERO_OID > .git/worktrees/wt/logs/refs/bisect/wt-random &&
-
-	$RWT for-each-reflog | cut -d" " -f 2- | sort >actual &&
-	cat >expected <<-\EOF &&
-	HEAD 0x1
-	PSEUDO-WT 0x0
-	refs/bisect/wt-random 0x0
-	refs/heads/main 0x0
-	refs/heads/wt-main 0x0
-	EOF
-	test_cmp expected actual &&
-
-	$RMAIN for-each-reflog | cut -d" " -f 2- | sort >actual &&
-	cat >expected <<-\EOF &&
-	HEAD 0x1
-	PSEUDO-MAIN 0x0
-	refs/bisect/random 0x0
-	refs/heads/main 0x0
-	refs/heads/wt-main 0x0
-	EOF
-	test_cmp expected actual
-'
-
 test_done
diff --git a/t/t1409-avoid-packing-refs.sh b/t/t1409-avoid-packing-refs.sh
index f23c015..7748973 100755
--- a/t/t1409-avoid-packing-refs.sh
+++ b/t/t1409-avoid-packing-refs.sh
@@ -5,6 +5,12 @@
 TEST_PASSES_SANITIZE_LEAK=true
 . ./test-lib.sh
 
+if test_have_prereq !REFFILES
+then
+  skip_all='skipping files-backend specific pack-refs tests'
+  test_done
+fi
+
 # Add an identifying mark to the packed-refs file header line. This
 # shouldn't upset readers, and it should be omitted if the file is
 # ever rewritten.
diff --git a/t/t1410-reflog.sh b/t/t1410-reflog.sh
index a0ff8d5..d2f5f42 100755
--- a/t/t1410-reflog.sh
+++ b/t/t1410-reflog.sh
@@ -354,36 +354,6 @@
 	test_must_be_empty actual
 '
 
-# Triggering the bug detected by this test requires a newline to fall
-# exactly BUFSIZ-1 bytes from the end of the file. We don't know
-# what that value is, since it's platform dependent. However, if
-# we choose some value N, we also catch any D which divides N evenly
-# (since we will read backwards in chunks of D). So we choose 8K,
-# which catches glibc (with an 8K BUFSIZ) and *BSD (1K).
-#
-# Each line is 114 characters, so we need 75 to still have a few before the
-# last 8K. The 89-character padding on the final entry lines up our
-# newline exactly.
-test_expect_success REFFILES,SHA1 'parsing reverse reflogs at BUFSIZ boundaries' '
-	git checkout -b reflogskip &&
-	zf=$(test_oid zero_2) &&
-	ident="abc <xyz> 0000000001 +0000" &&
-	for i in $(test_seq 1 75); do
-		printf "$zf%02d $zf%02d %s\t" $i $(($i+1)) "$ident" &&
-		if test $i = 75; then
-			for j in $(test_seq 1 89); do
-				printf X || return 1
-			done
-		else
-			printf X
-		fi &&
-		printf "\n" || return 1
-	done >.git/logs/refs/heads/reflogskip &&
-	git rev-parse reflogskip@{73} >actual &&
-	echo ${zf}03 >expect &&
-	test_cmp expect actual
-'
-
 test_expect_success 'no segfaults for reflog containing non-commit sha1s' '
 	git update-ref --create-reflog -m "Creating ref" \
 		refs/tests/tree-in-reflog HEAD &&
@@ -397,18 +367,6 @@
 	test_line_count = 3 actual
 '
 
-# This test takes a lock on an individual ref; this is not supported in
-# reftable.
-test_expect_success REFFILES 'reflog expire operates on symref not referrent' '
-	git branch --create-reflog the_symref &&
-	git branch --create-reflog referrent &&
-	git update-ref referrent HEAD &&
-	git symbolic-ref refs/heads/the_symref refs/heads/referrent &&
-	test_when_finished "rm -f .git/refs/heads/referrent.lock" &&
-	touch .git/refs/heads/referrent.lock &&
-	git reflog expire --expire=all the_symref
-'
-
 test_expect_success 'continue walking past root commits' '
 	git init orphanage &&
 	(
diff --git a/t/t1414-reflog-walk.sh b/t/t1414-reflog-walk.sh
index ea64cec..be6c3f4 100755
--- a/t/t1414-reflog-walk.sh
+++ b/t/t1414-reflog-walk.sh
@@ -121,13 +121,12 @@
 
 # Create a situation where the reflog and ref database disagree about the latest
 # state of HEAD.
-test_expect_success REFFILES 'walk prefers reflog to ref tip' '
+test_expect_success 'walk prefers reflog to ref tip' '
+	test_commit A &&
+	test_commit B &&
+	git reflog delete HEAD@{0} &&
 	head=$(git rev-parse HEAD) &&
-	one=$(git rev-parse one) &&
-	ident="$GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> $GIT_COMMITTER_DATE" &&
-	echo "$head $one $ident	broken reflog entry" >>.git/logs/HEAD &&
-
-	echo $one >expect &&
+	git rev-parse A >expect &&
 	git log -g --format=%H -1 >actual &&
 	test_cmp expect actual
 '
diff --git a/t/t1415-worktree-refs.sh b/t/t1415-worktree-refs.sh
index 3b53184..eb4eec8 100755
--- a/t/t1415-worktree-refs.sh
+++ b/t/t1415-worktree-refs.sh
@@ -17,17 +17,6 @@
 	git -C wt2 update-ref refs/worktree/foo HEAD
 '
 
-# The 'packed-refs' file is stored directly in .git/. This means it is global
-# to the repository, and can only contain refs that are shared across all
-# worktrees.
-test_expect_success REFFILES 'refs/worktree must not be packed' '
-	git pack-refs --all &&
-	test_path_is_missing .git/refs/tags/wt1 &&
-	test_path_is_file .git/refs/worktree/foo &&
-	test_path_is_file .git/worktrees/wt1/refs/worktree/foo &&
-	test_path_is_file .git/worktrees/wt2/refs/worktree/foo
-'
-
 test_expect_success 'refs/worktree are per-worktree' '
 	test_cmp_rev worktree/foo initial &&
 	( cd wt1 && test_cmp_rev worktree/foo wt1 ) &&
diff --git a/t/t1419-exclude-refs.sh b/t/t1419-exclude-refs.sh
index 5d8c86b..1359574 100755
--- a/t/t1419-exclude-refs.sh
+++ b/t/t1419-exclude-refs.sh
@@ -8,6 +8,12 @@
 TEST_PASSES_SANITIZE_LEAK=true
 . ./test-lib.sh
 
+if test_have_prereq !REFFILES
+then
+	skip_all='skipping `git for-each-ref --exclude` tests; need files backend'
+	test_done
+fi
+
 for_each_ref__exclude () {
 	GIT_TRACE2_PERF=1 test-tool ref-store main \
 		for-each-ref--exclude "$@" >actual.raw
diff --git a/t/t1430-bad-ref-name.sh b/t/t1430-bad-ref-name.sh
index 68cc9e7..0c00118 100755
--- a/t/t1430-bad-ref-name.sh
+++ b/t/t1430-bad-ref-name.sh
@@ -164,9 +164,9 @@
 test_expect_success 'for-each-ref emits warnings for broken names' '
 	test-tool ref-store main update-ref msg "refs/heads/broken...ref" $main_sha1 $ZERO_OID REF_SKIP_REFNAME_VERIFICATION &&
 	test_when_finished "test-tool ref-store main delete-refs REF_NO_DEREF msg refs/heads/broken...ref" &&
-	printf "ref: refs/heads/broken...ref\n" >.git/refs/heads/badname &&
+	test-tool ref-store main create-symref refs/heads/badname refs/heads/broken...ref &&
 	test_when_finished "test-tool ref-store main delete-refs REF_NO_DEREF msg refs/heads/badname" &&
-	printf "ref: refs/heads/main\n" >.git/refs/heads/broken...symref &&
+	test-tool ref-store main create-symref refs/heads/broken...symref refs/heads/main &&
 	test_when_finished "test-tool ref-store main delete-refs REF_NO_DEREF msg refs/heads/broken...symref" &&
 	git for-each-ref >output 2>error &&
 	! grep -e "broken\.\.\.ref" output &&
@@ -257,7 +257,7 @@
 '
 
 test_expect_success 'update-ref --no-deref -d can delete symref with broken name' '
-	printf "ref: refs/heads/main\n" >.git/refs/heads/broken...symref &&
+	test-tool ref-store main create-symref refs/heads/broken...symref refs/heads/main &&
 	test_when_finished "test-tool ref-store main delete-refs REF_NO_DEREF msg refs/heads/broken...symref" &&
 	test_ref_exists refs/heads/broken...symref &&
 	git update-ref --no-deref -d refs/heads/broken...symref >output 2>error &&
@@ -267,7 +267,7 @@
 '
 
 test_expect_success 'branch -d can delete symref with broken name' '
-	printf "ref: refs/heads/main\n" >.git/refs/heads/broken...symref &&
+	test-tool ref-store main create-symref refs/heads/broken...symref refs/heads/main &&
 	test_when_finished "test-tool ref-store main delete-refs REF_NO_DEREF msg refs/heads/broken...symref" &&
 	test_ref_exists refs/heads/broken...symref &&
 	git branch -d broken...symref >output 2>error &&
@@ -277,7 +277,7 @@
 '
 
 test_expect_success 'update-ref --no-deref -d can delete dangling symref with broken name' '
-	printf "ref: refs/heads/idonotexist\n" >.git/refs/heads/broken...symref &&
+	test-tool ref-store main create-symref refs/heads/broken...symref refs/heads/idonotexist &&
 	test_when_finished "test-tool ref-store main delete-refs REF_NO_DEREF msg refs/heads/broken...symref" &&
 	test_ref_exists refs/heads/broken...symref &&
 	git update-ref --no-deref -d refs/heads/broken...symref >output 2>error &&
@@ -287,7 +287,7 @@
 '
 
 test_expect_success 'branch -d can delete dangling symref with broken name' '
-	printf "ref: refs/heads/idonotexist\n" >.git/refs/heads/broken...symref &&
+	test-tool ref-store main create-symref refs/heads/broken...symref refs/heads/idonotexist &&
 	test_when_finished "test-tool ref-store main delete-refs REF_NO_DEREF msg refs/heads/broken...symref" &&
 	test_ref_exists refs/heads/broken...symref &&
 	git branch -d broken...symref >output 2>error &&
diff --git a/t/t1450-fsck.sh b/t/t1450-fsck.sh
index 0e3e87d..8a456b1 100755
--- a/t/t1450-fsck.sh
+++ b/t/t1450-fsck.sh
@@ -15,6 +15,7 @@
 	git config --unset i18n.commitencoding &&
 	git checkout HEAD^0 &&
 	test_commit B fileB two &&
+	orig_head=$(git rev-parse HEAD) &&
 	git tag -d A B &&
 	git reflog expire --expire=now --all
 '
@@ -115,15 +116,15 @@
 '
 
 test_expect_success 'branch pointing to non-commit' '
-	git rev-parse HEAD^{tree} >.git/refs/heads/invalid &&
+	tree_oid=$(git rev-parse --verify HEAD^{tree}) &&
 	test_when_finished "git update-ref -d refs/heads/invalid" &&
+	test-tool ref-store main update-ref msg refs/heads/invalid $tree_oid $ZERO_OID REF_SKIP_OID_VERIFICATION &&
 	test_must_fail git fsck 2>out &&
 	test_grep "not a commit" out
 '
 
-test_expect_success 'HEAD link pointing at a funny object' '
-	test_when_finished "mv .git/SAVED_HEAD .git/HEAD" &&
-	mv .git/HEAD .git/SAVED_HEAD &&
+test_expect_success REFFILES 'HEAD link pointing at a funny object' '
+	test_when_finished "git update-ref HEAD $orig_head" &&
 	echo $ZERO_OID >.git/HEAD &&
 	# avoid corrupt/broken HEAD from interfering with repo discovery
 	test_must_fail env GIT_DIR=.git git fsck 2>out &&
@@ -131,27 +132,25 @@
 '
 
 test_expect_success 'HEAD link pointing at a funny place' '
-	test_when_finished "mv .git/SAVED_HEAD .git/HEAD" &&
-	mv .git/HEAD .git/SAVED_HEAD &&
-	echo "ref: refs/funny/place" >.git/HEAD &&
+	test_when_finished "git update-ref --no-deref HEAD $orig_head" &&
+	test-tool ref-store main create-symref HEAD refs/funny/place &&
 	# avoid corrupt/broken HEAD from interfering with repo discovery
 	test_must_fail env GIT_DIR=.git git fsck 2>out &&
 	test_grep "HEAD points to something strange" out
 '
 
-test_expect_success 'HEAD link pointing at a funny object (from different wt)' '
-	test_when_finished "mv .git/SAVED_HEAD .git/HEAD" &&
-	test_when_finished "rm -rf .git/worktrees wt" &&
+test_expect_success REFFILES 'HEAD link pointing at a funny object (from different wt)' '
+	test_when_finished "git update-ref HEAD $orig_head" &&
+	test_when_finished "git worktree remove -f wt" &&
 	git worktree add wt &&
-	mv .git/HEAD .git/SAVED_HEAD &&
 	echo $ZERO_OID >.git/HEAD &&
 	# avoid corrupt/broken HEAD from interfering with repo discovery
 	test_must_fail git -C wt fsck 2>out &&
 	test_grep "main-worktree/HEAD: detached HEAD points" out
 '
 
-test_expect_success 'other worktree HEAD link pointing at a funny object' '
-	test_when_finished "rm -rf .git/worktrees other" &&
+test_expect_success REFFILES 'other worktree HEAD link pointing at a funny object' '
+	test_when_finished "git worktree remove -f other" &&
 	git worktree add other &&
 	echo $ZERO_OID >.git/worktrees/other/HEAD &&
 	test_must_fail git fsck 2>out &&
@@ -159,17 +158,18 @@
 '
 
 test_expect_success 'other worktree HEAD link pointing at missing object' '
-	test_when_finished "rm -rf .git/worktrees other" &&
+	test_when_finished "git worktree remove -f other" &&
 	git worktree add other &&
-	echo "Contents missing from repo" | git hash-object --stdin >.git/worktrees/other/HEAD &&
+	object_id=$(echo "Contents missing from repo" | git hash-object --stdin) &&
+	test-tool -C other ref-store main update-ref msg HEAD $object_id "" REF_NO_DEREF,REF_SKIP_OID_VERIFICATION &&
 	test_must_fail git fsck 2>out &&
 	test_grep "worktrees/other/HEAD: invalid sha1 pointer" out
 '
 
 test_expect_success 'other worktree HEAD link pointing at a funny place' '
-	test_when_finished "rm -rf .git/worktrees other" &&
+	test_when_finished "git worktree remove -f other" &&
 	git worktree add other &&
-	echo "ref: refs/funny/place" >.git/worktrees/other/HEAD &&
+	git -C other symbolic-ref HEAD refs/funny/place &&
 	test_must_fail git fsck 2>out &&
 	test_grep "worktrees/other/HEAD points to something strange" out
 '
@@ -391,7 +391,7 @@
 
 	tag=$(git hash-object -t tag -w --stdin <invalid-tag) &&
 	test_when_finished "remove_object $tag" &&
-	echo $tag >.git/refs/tags/invalid &&
+	git update-ref refs/tags/invalid $tag &&
 	test_when_finished "git update-ref -d refs/tags/invalid" &&
 	test_must_fail git fsck --tags >out &&
 	test_grep "broken link" out
@@ -411,7 +411,7 @@
 
 	tag=$(git hash-object -t tag -w --stdin <wrong-tag) &&
 	test_when_finished "remove_object $tag" &&
-	echo $tag >.git/refs/tags/wrong &&
+	git update-ref refs/tags/wrong $tag &&
 	test_when_finished "git update-ref -d refs/tags/wrong" &&
 	test_must_fail git fsck --tags
 '
@@ -428,7 +428,7 @@
 
 	tag=$(git hash-object --literally -t tag -w --stdin <wrong-tag) &&
 	test_when_finished "remove_object $tag" &&
-	echo $tag >.git/refs/tags/wrong &&
+	git update-ref refs/tags/wrong $tag &&
 	test_when_finished "git update-ref -d refs/tags/wrong" &&
 	git fsck --tags 2>out &&
 
@@ -452,7 +452,7 @@
 
 	tag=$(git hash-object --literally -t tag -w --stdin <wrong-tag) &&
 	test_when_finished "remove_object $tag" &&
-	echo $tag >.git/refs/tags/wrong &&
+	git update-ref refs/tags/wrong $tag &&
 	test_when_finished "git update-ref -d refs/tags/wrong" &&
 	test_must_fail git fsck --tags 2>out &&
 	test_grep "error in tag .*: invalid author/committer" out
@@ -471,7 +471,7 @@
 
 	tag=$(git hash-object --literally -t tag -w --stdin <tag-NUL-header) &&
 	test_when_finished "remove_object $tag" &&
-	echo $tag >.git/refs/tags/wrong &&
+	git update-ref refs/tags/wrong $tag &&
 	test_when_finished "git update-ref -d refs/tags/wrong" &&
 	test_must_fail git fsck --tags 2>out &&
 	test_grep "error in tag $tag.*unterminated header: NUL at offset" out
diff --git a/t/t1500-rev-parse.sh b/t/t1500-rev-parse.sh
index 3f9e7f6..a669e59 100755
--- a/t/t1500-rev-parse.sh
+++ b/t/t1500-rev-parse.sh
@@ -208,6 +208,23 @@
 	grep "unknown mode for --show-object-format: squeamish-ossifrage" err
 '
 
+test_expect_success 'rev-parse --show-ref-format' '
+	test_detect_ref_format >expect &&
+	git rev-parse --show-ref-format >actual &&
+	test_cmp expect actual
+'
+
+test_expect_success 'rev-parse --show-ref-format with invalid storage' '
+	test_when_finished "rm -rf repo" &&
+	git init repo &&
+	(
+		cd repo &&
+		git config extensions.refstorage broken &&
+		test_must_fail git rev-parse --show-ref-format 2>err &&
+		grep "error: invalid value for ${SQ}extensions.refstorage${SQ}: ${SQ}broken${SQ}" err
+	)
+'
+
 test_expect_success '--show-toplevel from subdir of working tree' '
 	pwd >expect &&
 	git -C sub/dir rev-parse --show-toplevel >actual &&
diff --git a/t/t1503-rev-parse-verify.sh b/t/t1503-rev-parse-verify.sh
index bc13683..79df65e 100755
--- a/t/t1503-rev-parse-verify.sh
+++ b/t/t1503-rev-parse-verify.sh
@@ -144,11 +144,6 @@
 	test_must_fail git rev-parse --verify main@{$Np1}
 '
 
-test_expect_success SYMLINKS,REFFILES 'ref resolution not confused by broken symlinks' '
-	ln -s does-not-exist .git/refs/heads/broken &&
-	test_must_fail git rev-parse --verify broken
-'
-
 test_expect_success 'options can appear after --verify' '
 	git rev-parse --verify HEAD >expect &&
 	git rev-parse --verify -q HEAD >actual &&
diff --git a/t/t2011-checkout-invalid-head.sh b/t/t2011-checkout-invalid-head.sh
index d9997e7..3c81358 100755
--- a/t/t2011-checkout-invalid-head.sh
+++ b/t/t2011-checkout-invalid-head.sh
@@ -18,18 +18,18 @@
 	test_must_fail git checkout -b newbranch main^{tree}
 '
 
-test_expect_success 'checkout main from invalid HEAD' '
+test_expect_success REFFILES 'checkout main from invalid HEAD' '
 	echo $ZERO_OID >.git/HEAD &&
 	git checkout main --
 '
 
-test_expect_success 'checkout notices failure to lock HEAD' '
+test_expect_success REFFILES 'checkout notices failure to lock HEAD' '
 	test_when_finished "rm -f .git/HEAD.lock" &&
 	>.git/HEAD.lock &&
 	test_must_fail git checkout -b other
 '
 
-test_expect_success 'create ref directory/file conflict scenario' '
+test_expect_success REFFILES 'create ref directory/file conflict scenario' '
 	git update-ref refs/heads/outer/inner main &&
 
 	# do not rely on symbolic-ref to get a known state,
@@ -39,26 +39,26 @@
 	}
 '
 
-test_expect_success 'checkout away from d/f HEAD (unpacked, to branch)' '
+test_expect_success REFFILES 'checkout away from d/f HEAD (unpacked, to branch)' '
 	reset_to_df &&
 	git checkout main
 '
 
-test_expect_success 'checkout away from d/f HEAD (unpacked, to detached)' '
+test_expect_success REFFILES 'checkout away from d/f HEAD (unpacked, to detached)' '
 	reset_to_df &&
 	git checkout --detach main
 '
 
-test_expect_success 'pack refs' '
+test_expect_success REFFILES 'pack refs' '
 	git pack-refs --all --prune
 '
 
-test_expect_success 'checkout away from d/f HEAD (packed, to branch)' '
+test_expect_success REFFILES 'checkout away from d/f HEAD (packed, to branch)' '
 	reset_to_df &&
 	git checkout main
 '
 
-test_expect_success 'checkout away from d/f HEAD (packed, to detached)' '
+test_expect_success REFFILES 'checkout away from d/f HEAD (packed, to detached)' '
 	reset_to_df &&
 	git checkout --detach main
 '
diff --git a/t/t2017-checkout-orphan.sh b/t/t2017-checkout-orphan.sh
index 947d158..a5c7358 100755
--- a/t/t2017-checkout-orphan.sh
+++ b/t/t2017-checkout-orphan.sh
@@ -86,7 +86,7 @@
 	git rev-parse --verify delta@{0}
 '
 
-test_expect_success REFFILES '--orphan does not make reflog when core.logAllRefUpdates = false' '
+test_expect_success '--orphan does not make reflog when core.logAllRefUpdates = false' '
 	git checkout main &&
 	git config core.logAllRefUpdates false &&
 	git checkout --orphan epsilon &&
diff --git a/t/t2060-switch.sh b/t/t2060-switch.sh
index e247a47..c91c4db 100755
--- a/t/t2060-switch.sh
+++ b/t/t2060-switch.sh
@@ -170,8 +170,10 @@
 	# we test in both worktrees to ensure that works
 	# as expected with "first" and "next" worktrees
 	test_must_fail git -C wt1 switch shared &&
+	test_must_fail git -C wt1 switch -C shared &&
 	git -C wt1 switch --ignore-other-worktrees shared &&
 	test_must_fail git -C wt2 switch shared &&
+	test_must_fail git -C wt2 switch -C shared &&
 	git -C wt2 switch --ignore-other-worktrees shared
 '
 
diff --git a/t/t2400-worktree-add.sh b/t/t2400-worktree-add.sh
index 4b7627e..c28c041 100755
--- a/t/t2400-worktree-add.sh
+++ b/t/t2400-worktree-add.sh
@@ -126,6 +126,28 @@
 	)
 '
 
+test_expect_success 'refuse to reset a branch in use elsewhere' '
+	(
+		cd here &&
+
+		# we know we are on detached HEAD but just in case ...
+		git checkout --detach HEAD &&
+		git rev-parse --verify HEAD >old.head &&
+
+		git rev-parse --verify refs/heads/newmain >old.branch &&
+		test_must_fail git checkout -B newmain 2>error &&
+		git rev-parse --verify refs/heads/newmain >new.branch &&
+		git rev-parse --verify HEAD >new.head &&
+
+		grep "already used by worktree at" error &&
+		test_cmp old.branch new.branch &&
+		test_cmp old.head new.head &&
+
+		# and we must be still on the same detached HEAD state
+		test_must_fail git symbolic-ref HEAD
+	)
+'
+
 test_expect_success SYMLINKS 'die the same branch is already checked out (symlink)' '
 	head=$(git -C there rev-parse --git-path HEAD) &&
 	ref=$(git -C there symbolic-ref HEAD) &&
@@ -468,7 +490,8 @@
 		cd under-rebase &&
 		set_fake_editor &&
 		FAKE_LINES="edit 1" git rebase -i HEAD^ &&
-		git worktree list | grep "under-rebase.*detached HEAD"
+		git worktree list >actual &&
+		grep "under-rebase.*detached HEAD" actual
 	)
 '
 
@@ -509,7 +532,8 @@
 		git bisect start &&
 		git bisect bad &&
 		git bisect good HEAD~2 &&
-		git worktree list | grep "under-bisect.*detached HEAD" &&
+		git worktree list >actual &&
+		grep "under-bisect.*detached HEAD" actual &&
 		test_must_fail git worktree add new-bisect under-bisect &&
 		! test -d new-bisect
 	)
diff --git a/t/t3200-branch.sh b/t/t3200-branch.sh
index c54fd9e..de7d301 100755
--- a/t/t3200-branch.sh
+++ b/t/t3200-branch.sh
@@ -28,7 +28,7 @@
 	test_ref_missing refs/heads/--help
 '
 
-test_expect_success 'branch -h in broken repository' '
+test_expect_success REFFILES 'branch -h in broken repository' '
 	mkdir broken &&
 	(
 		cd broken &&
@@ -76,14 +76,14 @@
 '
 
 cat >expect <<EOF
-$ZERO_OID $HEAD $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> 1117150200 +0000	branch: Created from main
+$HEAD refs/heads/d/e/f@{0}: branch: Created from main
 EOF
 test_expect_success 'git branch --create-reflog d/e/f should create a branch and a log' '
 	GIT_COMMITTER_DATE="2005-05-26 23:30" \
 	git -c core.logallrefupdates=false branch --create-reflog d/e/f &&
 	test_ref_exists refs/heads/d/e/f &&
-	test_path_is_file .git/logs/refs/heads/d/e/f &&
-	test_cmp expect .git/logs/refs/heads/d/e/f
+	git reflog show --no-abbrev-commit refs/heads/d/e/f >actual &&
+	test_cmp expect actual
 '
 
 test_expect_success 'git branch -d d/e/f should delete a branch and a log' '
@@ -203,10 +203,9 @@
 	test $(git rev-parse --abbrev-ref HEAD) = bam
 '
 
-test_expect_success 'git branch -M baz bam should add entries to .git/logs/HEAD' '
-	msg="Branch: renamed refs/heads/baz to refs/heads/bam" &&
-	grep " $ZERO_OID.*$msg$" .git/logs/HEAD &&
-	grep "^$ZERO_OID.*$msg$" .git/logs/HEAD
+test_expect_success 'git branch -M baz bam should add entries to HEAD reflog' '
+	git reflog show HEAD >actual &&
+	grep "HEAD@{0}: Branch: renamed refs/heads/baz to refs/heads/bam" actual
 '
 
 test_expect_success 'git branch -M should leave orphaned HEAD alone' '
@@ -215,17 +214,20 @@
 		cd orphan &&
 		test_commit initial &&
 		git checkout --orphan lonely &&
-		grep lonely .git/HEAD &&
+		git symbolic-ref HEAD >expect &&
+		echo refs/heads/lonely >actual &&
+		test_cmp expect actual &&
 		test_ref_missing refs/head/lonely &&
 		git branch -M main mistress &&
-		grep lonely .git/HEAD
+		git symbolic-ref HEAD >expect &&
+		test_cmp expect actual
 	)
 '
 
 test_expect_success 'resulting reflog can be shown by log -g' '
 	oid=$(git rev-parse HEAD) &&
 	cat >expect <<-EOF &&
-	HEAD@{0} $oid $msg
+	HEAD@{0} $oid Branch: renamed refs/heads/baz to refs/heads/bam
 	HEAD@{2} $oid checkout: moving from foo to baz
 	EOF
 	git log -g --format="%gd %H %gs" -2 HEAD >actual &&
@@ -243,7 +245,7 @@
 	git worktree prune
 '
 
-test_expect_success 'git branch -M fails if updating any linked working tree fails' '
+test_expect_success REFFILES 'git branch -M fails if updating any linked working tree fails' '
 	git worktree add -b baz bazdir1 &&
 	git worktree add -f bazdir2 baz &&
 	touch .git/worktrees/bazdir1/HEAD.lock &&
@@ -517,7 +519,7 @@
 
 mv .git/config .git/config-saved
 
-test_expect_success SHA1 'git branch -m q q2 without config should succeed' '
+test_expect_success DEFAULT_REPO_FORMAT 'git branch -m q q2 without config should succeed' '
 	git branch -m q q2 &&
 	git branch -m q2 q
 '
@@ -699,7 +701,8 @@
 
 test_expect_success 'git branch -C c1 c2 should never touch HEAD' '
 	msg="Branch: copied refs/heads/c1 to refs/heads/c2" &&
-	! grep "$msg$" .git/logs/HEAD
+	git reflog HEAD >actual &&
+	! grep "$msg$" actual
 '
 
 test_expect_success 'git branch -C main should work when main is checked out' '
@@ -809,7 +812,7 @@
 
 test_expect_success 'deleting a dangling symref' '
 	git symbolic-ref refs/heads/dangling-symref nowhere &&
-	test_path_is_file .git/refs/heads/dangling-symref &&
+	git symbolic-ref --no-recurse refs/heads/dangling-symref &&
 	echo "Deleted branch dangling-symref (was nowhere)." >expect &&
 	git branch -d dangling-symref >actual &&
 	test_ref_missing refs/heads/dangling-symref &&
@@ -833,14 +836,14 @@
 	test_ref_missing refs/heads/new-topic
 '
 
-test_expect_success SYMLINKS 'git branch -m u v should fail when the reflog for u is a symlink' '
+test_expect_success SYMLINKS,REFFILES 'git branch -m u v should fail when the reflog for u is a symlink' '
 	git branch --create-reflog u &&
 	mv .git/logs/refs/heads/u real-u &&
 	ln -s real-u .git/logs/refs/heads/u &&
 	test_must_fail git branch -m u v
 '
 
-test_expect_success SYMLINKS 'git branch -m with symlinked .git/refs' '
+test_expect_success SYMLINKS,REFFILES 'git branch -m with symlinked .git/refs' '
 	test_when_finished "rm -rf subdir" &&
 	git init --bare subdir &&
 
@@ -1140,14 +1143,14 @@
 
 # Keep this test last, as it changes the current branch
 cat >expect <<EOF
-$ZERO_OID $HEAD $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> 1117150200 +0000	branch: Created from main
+$HEAD refs/heads/g/h/i@{0}: branch: Created from main
 EOF
 test_expect_success 'git checkout -b g/h/i -l should create a branch and a log' '
 	GIT_COMMITTER_DATE="2005-05-26 23:30" \
 	git checkout -b g/h/i -l main &&
 	test_ref_exists refs/heads/g/h/i &&
-	test_path_is_file .git/logs/refs/heads/g/h/i &&
-	test_cmp expect .git/logs/refs/heads/g/h/i
+	git reflog show --no-abbrev-commit refs/heads/g/h/i >actual &&
+	test_cmp expect actual
 '
 
 test_expect_success 'checkout -b makes reflog by default' '
@@ -1573,9 +1576,10 @@
 
 test_expect_success 'configured committerdate sort' '
 	git init -b main sort &&
+	test_config -C sort branch.sort "committerdate" &&
+
 	(
 		cd sort &&
-		git config branch.sort committerdate &&
 		test_commit initial &&
 		git checkout -b a &&
 		test_commit a &&
@@ -1595,9 +1599,10 @@
 '
 
 test_expect_success 'option override configured sort' '
+	test_config -C sort branch.sort "committerdate" &&
+
 	(
 		cd sort &&
-		git config branch.sort committerdate &&
 		git branch --sort=refname >actual &&
 		cat >expect <<-\EOF &&
 		  a
@@ -1609,10 +1614,70 @@
 	)
 '
 
-test_expect_success 'invalid sort parameter in configuration' '
+test_expect_success '--no-sort cancels config sort keys' '
+	test_config -C sort branch.sort "-refname" &&
+
 	(
 		cd sort &&
-		git config branch.sort "v:notvalid" &&
+
+		# objecttype is identical for all of them, so sort falls back on
+		# default (ascending refname)
+		git branch \
+			--no-sort \
+			--sort="objecttype" >actual &&
+		cat >expect <<-\EOF &&
+		  a
+		* b
+		  c
+		  main
+		EOF
+		test_cmp expect actual
+	)
+
+'
+
+test_expect_success '--no-sort cancels command line sort keys' '
+	(
+		cd sort &&
+
+		# objecttype is identical for all of them, so sort falls back on
+		# default (ascending refname)
+		git branch \
+			--sort="-refname" \
+			--no-sort \
+			--sort="objecttype" >actual &&
+		cat >expect <<-\EOF &&
+		  a
+		* b
+		  c
+		  main
+		EOF
+		test_cmp expect actual
+	)
+'
+
+test_expect_success '--no-sort without subsequent --sort prints expected branches' '
+	(
+		cd sort &&
+
+		# Sort the results with `sort` for a consistent comparison
+		# against expected
+		git branch --no-sort | sort >actual &&
+		cat >expect <<-\EOF &&
+		  a
+		  c
+		  main
+		* b
+		EOF
+		test_cmp expect actual
+	)
+'
+
+test_expect_success 'invalid sort parameter in configuration' '
+	test_config -C sort branch.sort "v:notvalid" &&
+
+	(
+		cd sort &&
 
 		# this works in the "listing" mode, so bad sort key
 		# is a dying offence.
diff --git a/t/t3400-rebase.sh b/t/t3400-rebase.sh
index 24a539c..57f1392 100755
--- a/t/t3400-rebase.sh
+++ b/t/t3400-rebase.sh
@@ -424,7 +424,7 @@
 	test_grep "already used by worktree at" err
 '
 
-test_expect_success MINGW,SYMLINKS_WINDOWS 'rebase when .git/logs is a symlink' '
+test_expect_success REFFILES,MINGW,SYMLINKS_WINDOWS 'rebase when .git/logs is a symlink' '
 	git checkout main &&
 	mv .git/logs actual_logs &&
 	cmd //c "mklink /D .git\logs ..\actual_logs" &&
diff --git a/t/t3404-rebase-interactive.sh b/t/t3404-rebase-interactive.sh
index c5f3055..d1bead6 100755
--- a/t/t3404-rebase-interactive.sh
+++ b/t/t3404-rebase-interactive.sh
@@ -153,6 +153,18 @@
 	git rebase --continue
 '
 
+test_expect_success 'cherry-pick works with rebase --exec' '
+	test_when_finished "git cherry-pick --abort; \
+			    git rebase --abort; \
+			    git checkout primary" &&
+	echo "exec git cherry-pick G" >todo &&
+	(
+		set_replace_editor todo &&
+		test_must_fail git rebase -i D D
+	) &&
+	test_cmp_rev G CHERRY_PICK_HEAD
+'
+
 test_expect_success 'rebase -x with empty command fails' '
 	test_when_finished "git rebase --abort ||:" &&
 	test_must_fail env git rebase -x "" @ 2>actual &&
@@ -2160,7 +2172,7 @@
 	# recorded in the update-refs file. We will force-update the
 	# "second" ref, but "git branch -f" will not work because of
 	# the lock in the update-refs file.
-	git rev-parse third >.git/refs/heads/second &&
+	git update-ref refs/heads/second third &&
 
 	test_must_fail git rebase --continue 2>err &&
 	grep "update_ref failed for ref '\''refs/heads/second'\''" err &&
diff --git a/t/t3407-rebase-abort.sh b/t/t3407-rebase-abort.sh
index ebbaed1..9f49c42 100755
--- a/t/t3407-rebase-abort.sh
+++ b/t/t3407-rebase-abort.sh
@@ -40,9 +40,24 @@
 		test_path_is_missing "$state_dir"
 	'
 
+	test_expect_success "pre rebase$type head is marked as reachable" '
+		# Clean up the state from the previous one
+		git checkout -f --detach pre-rebase &&
+		test_tick &&
+		git commit --amend --only -m "reworded" &&
+		orig_head=$(git rev-parse HEAD) &&
+		test_must_fail git rebase$type main &&
+		# Stop ORIG_HEAD marking $state_dir/orig-head as reachable
+		git update-ref -d ORIG_HEAD &&
+		git reflog expire --expire="$GIT_COMMITTER_DATE" --all &&
+		git prune --expire=now &&
+		git rebase --abort &&
+		test_cmp_rev $orig_head HEAD
+	'
+
 	test_expect_success "rebase$type --abort after --skip" '
 		# Clean up the state from the previous one
-		git reset --hard pre-rebase &&
+		git checkout -B to-rebase pre-rebase &&
 		test_must_fail git rebase$type main &&
 		test_path_is_dir "$state_dir" &&
 		test_must_fail git rebase --skip &&
diff --git a/t/t3415-rebase-autosquash.sh b/t/t3415-rebase-autosquash.sh
index a364530..fcc40d6 100755
--- a/t/t3415-rebase-autosquash.sh
+++ b/t/t3415-rebase-autosquash.sh
@@ -43,7 +43,7 @@
 
 	git tag $1 &&
 	test_tick &&
-	git rebase $2 -i HEAD^^^ &&
+	git rebase $2 HEAD^^^ &&
 	git log --oneline >actual &&
 	if test -n "$no_squash"
 	then
@@ -61,15 +61,24 @@
 }
 
 test_expect_success 'auto fixup (option)' '
-	test_auto_fixup final-fixup-option --autosquash
+	test_auto_fixup fixup-option --autosquash &&
+	test_auto_fixup fixup-option-i "--autosquash -i"
 '
 
-test_expect_success 'auto fixup (config)' '
+test_expect_success 'auto fixup (config true)' '
 	git config rebase.autosquash true &&
-	test_auto_fixup final-fixup-config-true &&
+	test_auto_fixup ! fixup-config-true &&
+	test_auto_fixup fixup-config-true-i -i &&
 	test_auto_fixup ! fixup-config-true-no --no-autosquash &&
+	test_auto_fixup ! fixup-config-true-i-no "-i --no-autosquash"
+'
+
+test_expect_success 'auto fixup (config false)' '
 	git config rebase.autosquash false &&
-	test_auto_fixup ! final-fixup-config-false
+	test_auto_fixup ! fixup-config-false &&
+	test_auto_fixup ! fixup-config-false-i -i &&
+	test_auto_fixup fixup-config-false-yes --autosquash &&
+	test_auto_fixup fixup-config-false-i-yes "-i --autosquash"
 '
 
 test_auto_squash () {
@@ -87,7 +96,7 @@
 	git commit -m "squash! first" -m "extra para for first" &&
 	git tag $1 &&
 	test_tick &&
-	git rebase $2 -i HEAD^^^ &&
+	git rebase $2 HEAD^^^ &&
 	git log --oneline >actual &&
 	if test -n "$no_squash"
 	then
@@ -105,15 +114,24 @@
 }
 
 test_expect_success 'auto squash (option)' '
-	test_auto_squash final-squash --autosquash
+	test_auto_squash squash-option --autosquash &&
+	test_auto_squash squash-option-i "--autosquash -i"
 '
 
-test_expect_success 'auto squash (config)' '
+test_expect_success 'auto squash (config true)' '
 	git config rebase.autosquash true &&
-	test_auto_squash final-squash-config-true &&
+	test_auto_squash ! squash-config-true &&
+	test_auto_squash squash-config-true-i -i &&
 	test_auto_squash ! squash-config-true-no --no-autosquash &&
+	test_auto_squash ! squash-config-true-i-no "-i --no-autosquash"
+'
+
+test_expect_success 'auto squash (config false)' '
 	git config rebase.autosquash false &&
-	test_auto_squash ! final-squash-config-false
+	test_auto_squash ! squash-config-false &&
+	test_auto_squash ! squash-config-false-i -i &&
+	test_auto_squash squash-config-false-yes --autosquash &&
+	test_auto_squash squash-config-false-i-yes "-i --autosquash"
 '
 
 test_expect_success 'misspelled auto squash' '
diff --git a/t/t3420-rebase-autostash.sh b/t/t3420-rebase-autostash.sh
index 693934e..1a820f1 100755
--- a/t/t3420-rebase-autostash.sh
+++ b/t/t3420-rebase-autostash.sh
@@ -333,4 +333,14 @@
 	test_cmp_rev not-the-feature-branch unrelated-onto-branch
 '
 
+test_expect_success 'autostash commit is marked as reachable' '
+	echo changed >file0 &&
+	git rebase --autostash --exec "git prune --expire=now" \
+		feature-branch^ feature-branch &&
+	# git rebase succeeds if the stash cannot be applied so we need to check
+	# the contents of file0
+	echo changed >expect &&
+	test_cmp expect file0
+'
+
 test_done
diff --git a/t/t3422-rebase-incompatible-options.sh b/t/t3422-rebase-incompatible-options.sh
index 2eba00b..b40f262 100755
--- a/t/t3422-rebase-incompatible-options.sh
+++ b/t/t3422-rebase-incompatible-options.sh
@@ -100,12 +100,6 @@
 		test_must_fail git rebase $opt --root A
 	"
 
-	test_expect_success "$opt incompatible with rebase.autosquash" "
-		git checkout B^0 &&
-		test_must_fail git -c rebase.autosquash=true rebase $opt A 2>err &&
-		grep -e --no-autosquash err
-	"
-
 	test_expect_success "$opt incompatible with rebase.rebaseMerges" "
 		git checkout B^0 &&
 		test_must_fail git -c rebase.rebaseMerges=true rebase $opt A 2>err &&
@@ -118,12 +112,6 @@
 		grep -e --no-update-refs err
 	"
 
-	test_expect_success "$opt okay with overridden rebase.autosquash" "
-		test_when_finished \"git reset --hard B^0\" &&
-		git checkout B^0 &&
-		git -c rebase.autosquash=true rebase --no-autosquash $opt A
-	"
-
 	test_expect_success "$opt okay with overridden rebase.rebaseMerges" "
 		test_when_finished \"git reset --hard B^0\" &&
 		git checkout B^0 &&
diff --git a/t/t3650-replay-basics.sh b/t/t3650-replay-basics.sh
new file mode 100755
index 0000000..3896702
--- /dev/null
+++ b/t/t3650-replay-basics.sh
@@ -0,0 +1,198 @@
+#!/bin/sh
+
+test_description='basic git replay tests'
+
+GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
+export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
+
+. ./test-lib.sh
+
+GIT_AUTHOR_NAME=author@name
+GIT_AUTHOR_EMAIL=bogus@email@address
+export GIT_AUTHOR_NAME GIT_AUTHOR_EMAIL
+
+test_expect_success 'setup' '
+	test_commit A &&
+	test_commit B &&
+
+	git switch -c topic1 &&
+	test_commit C &&
+	git switch -c topic2 &&
+	test_commit D &&
+	test_commit E &&
+	git switch topic1 &&
+	test_commit F &&
+	git switch -c topic3 &&
+	test_commit G &&
+	test_commit H &&
+	git switch -c topic4 main &&
+	test_commit I &&
+	test_commit J &&
+
+	git switch -c next main &&
+	test_commit K &&
+	git merge -m "Merge topic1" topic1 &&
+	git merge -m "Merge topic2" topic2 &&
+	git merge -m "Merge topic3" topic3 &&
+	>evil &&
+	git add evil &&
+	git commit --amend &&
+	git merge -m "Merge topic4" topic4 &&
+
+	git switch main &&
+	test_commit L &&
+	test_commit M &&
+
+	git switch -c conflict B &&
+	test_commit C.conflict C.t conflict
+'
+
+test_expect_success 'setup bare' '
+	git clone --bare . bare
+'
+
+test_expect_success 'using replay to rebase two branches, one on top of other' '
+	git replay --onto main topic1..topic2 >result &&
+
+	test_line_count = 1 result &&
+
+	git log --format=%s $(cut -f 3 -d " " result) >actual &&
+	test_write_lines E D M L B A >expect &&
+	test_cmp expect actual &&
+
+	printf "update refs/heads/topic2 " >expect &&
+	printf "%s " $(cut -f 3 -d " " result) >>expect &&
+	git rev-parse topic2 >>expect &&
+
+	test_cmp expect result
+'
+
+test_expect_success 'using replay on bare repo to rebase two branches, one on top of other' '
+	git -C bare replay --onto main topic1..topic2 >result-bare &&
+	test_cmp expect result-bare
+'
+
+test_expect_success 'using replay to rebase with a conflict' '
+	test_expect_code 1 git replay --onto topic1 B..conflict
+'
+
+test_expect_success 'using replay on bare repo to rebase with a conflict' '
+	test_expect_code 1 git -C bare replay --onto topic1 B..conflict
+'
+
+test_expect_success 'using replay to perform basic cherry-pick' '
+	# The differences between this test and previous ones are:
+	#   --advance vs --onto
+	# 2nd field of result is refs/heads/main vs. refs/heads/topic2
+	# 4th field of result is hash for main instead of hash for topic2
+
+	git replay --advance main topic1..topic2 >result &&
+
+	test_line_count = 1 result &&
+
+	git log --format=%s $(cut -f 3 -d " " result) >actual &&
+	test_write_lines E D M L B A >expect &&
+	test_cmp expect actual &&
+
+	printf "update refs/heads/main " >expect &&
+	printf "%s " $(cut -f 3 -d " " result) >>expect &&
+	git rev-parse main >>expect &&
+
+	test_cmp expect result
+'
+
+test_expect_success 'using replay on bare repo to perform basic cherry-pick' '
+	git -C bare replay --advance main topic1..topic2 >result-bare &&
+	test_cmp expect result-bare
+'
+
+test_expect_success 'replay on bare repo fails with both --advance and --onto' '
+	test_must_fail git -C bare replay --advance main --onto main topic1..topic2 >result-bare
+'
+
+test_expect_success 'replay fails when both --advance and --onto are omitted' '
+	test_must_fail git replay topic1..topic2 >result
+'
+
+test_expect_success 'using replay to also rebase a contained branch' '
+	git replay --contained --onto main main..topic3 >result &&
+
+	test_line_count = 2 result &&
+	cut -f 3 -d " " result >new-branch-tips &&
+
+	git log --format=%s $(head -n 1 new-branch-tips) >actual &&
+	test_write_lines F C M L B A >expect &&
+	test_cmp expect actual &&
+
+	git log --format=%s $(tail -n 1 new-branch-tips) >actual &&
+	test_write_lines H G F C M L B A >expect &&
+	test_cmp expect actual &&
+
+	printf "update refs/heads/topic1 " >expect &&
+	printf "%s " $(head -n 1 new-branch-tips) >>expect &&
+	git rev-parse topic1 >>expect &&
+	printf "update refs/heads/topic3 " >>expect &&
+	printf "%s " $(tail -n 1 new-branch-tips) >>expect &&
+	git rev-parse topic3 >>expect &&
+
+	test_cmp expect result
+'
+
+test_expect_success 'using replay on bare repo to also rebase a contained branch' '
+	git -C bare replay --contained --onto main main..topic3 >result-bare &&
+	test_cmp expect result-bare
+'
+
+test_expect_success 'using replay to rebase multiple divergent branches' '
+	git replay --onto main ^topic1 topic2 topic4 >result &&
+
+	test_line_count = 2 result &&
+	cut -f 3 -d " " result >new-branch-tips &&
+
+	git log --format=%s $(head -n 1 new-branch-tips) >actual &&
+	test_write_lines E D M L B A >expect &&
+	test_cmp expect actual &&
+
+	git log --format=%s $(tail -n 1 new-branch-tips) >actual &&
+	test_write_lines J I M L B A >expect &&
+	test_cmp expect actual &&
+
+	printf "update refs/heads/topic2 " >expect &&
+	printf "%s " $(head -n 1 new-branch-tips) >>expect &&
+	git rev-parse topic2 >>expect &&
+	printf "update refs/heads/topic4 " >>expect &&
+	printf "%s " $(tail -n 1 new-branch-tips) >>expect &&
+	git rev-parse topic4 >>expect &&
+
+	test_cmp expect result
+'
+
+test_expect_success 'using replay on bare repo to rebase multiple divergent branches, including contained ones' '
+	git -C bare replay --contained --onto main ^main topic2 topic3 topic4 >result &&
+
+	test_line_count = 4 result &&
+	cut -f 3 -d " " result >new-branch-tips &&
+
+	>expect &&
+	for i in 2 1 3 4
+	do
+		printf "update refs/heads/topic$i " >>expect &&
+		printf "%s " $(grep topic$i result | cut -f 3 -d " ") >>expect &&
+		git -C bare rev-parse topic$i >>expect || return 1
+	done &&
+
+	test_cmp expect result &&
+
+	test_write_lines F C M L B A >expect1 &&
+	test_write_lines E D C M L B A >expect2 &&
+	test_write_lines H G F C M L B A >expect3 &&
+	test_write_lines J I M L B A >expect4 &&
+
+	for i in 1 2 3 4
+	do
+		git -C bare log --format=%s $(grep topic$i result | cut -f 3 -d " ") >actual &&
+		test_cmp expect$i actual || return 1
+	done
+'
+
+test_done
diff --git a/t/t3903-stash.sh b/t/t3903-stash.sh
index 3caf490..00db82f 100755
--- a/t/t3903-stash.sh
+++ b/t/t3903-stash.sh
@@ -200,7 +200,7 @@
 	test_cmp expect actual
 '
 
-test_expect_success REFFILES 'drop stash reflog updates refs/stash with rewrite' '
+test_expect_success 'drop stash reflog updates refs/stash with rewrite' '
 	git init repo &&
 	(
 		cd repo &&
@@ -213,16 +213,16 @@
 	new_oid="$(git -C repo rev-parse stash@{0})" &&
 
 	cat >expect <<-EOF &&
-	$(test_oid zero) $old_oid
-	$old_oid $new_oid
+	$new_oid
+	$old_oid
 	EOF
-	cut -d" " -f1-2 repo/.git/logs/refs/stash >actual &&
+	git -C repo reflog show refs/stash --format=%H >actual &&
 	test_cmp expect actual &&
 
 	git -C repo stash drop stash@{1} &&
-	cut -d" " -f1-2 repo/.git/logs/refs/stash >actual &&
+	git -C repo reflog show refs/stash --format=%H >actual &&
 	cat >expect <<-EOF &&
-	$(test_oid zero) $new_oid
+	$new_oid
 	EOF
 	test_cmp expect actual
 '
diff --git a/t/t4013-diff-various.sh b/t/t4013-diff-various.sh
index 1a7e2b0..1e3b2db 100755
--- a/t/t4013-diff-various.sh
+++ b/t/t4013-diff-various.sh
@@ -519,7 +519,7 @@
 '
 
 test_expect_success 'diff --cached on unborn branch' '
-	echo ref: refs/heads/unborn >.git/HEAD &&
+	git symbolic-ref HEAD refs/heads/unborn &&
 	git diff --cached >result &&
 	process_diffs result >actual &&
 	process_diffs "$TEST_DIRECTORY/t4013/diff.diff_--cached" >expected &&
diff --git a/t/t4014-format-patch.sh b/t/t4014-format-patch.sh
index 5ced27e..e37a141 100755
--- a/t/t4014-format-patch.sh
+++ b/t/t4014-format-patch.sh
@@ -1906,6 +1906,16 @@
 	grep "^body$" actual
 '
 
+test_expect_success 'cover letter with --cover-from-description subject (UTF-8 subject line)' '
+	test_config branch.rebuild-1.description "Café?
+
+body" &&
+	git checkout rebuild-1 &&
+	git format-patch --stdout --cover-letter --cover-from-description subject --encode-email-headers main >actual &&
+	grep "^Subject: \[PATCH 0/2\] =?UTF-8?q?Caf=C3=A9=3F?=$" actual &&
+	! grep "Café" actual
+'
+
 test_expect_success 'cover letter with format.coverFromDescription = auto (short subject line)' '
 	test_config branch.rebuild-1.description "config subject
 
diff --git a/t/t4129-apply-samemode.sh b/t/t4129-apply-samemode.sh
index e7a7295..2775bfa 100755
--- a/t/t4129-apply-samemode.sh
+++ b/t/t4129-apply-samemode.sh
@@ -41,7 +41,8 @@
 	chmod +x file &&
 	git add file &&
 	git apply --cached patch-0.txt &&
-	git ls-files -s file | grep "^100755"
+	git ls-files -s file >ls-files-output &&
+	test_grep "^100755" ls-files-output
 '
 
 test_expect_success FILEMODE 'mode update (no index)' '
@@ -60,7 +61,8 @@
 test_expect_success FILEMODE 'mode update (index only)' '
 	git reset --hard &&
 	git apply --cached patch-1.txt &&
-	git ls-files -s file | grep "^100755"
+	git ls-files -s file >ls-files-output &&
+	test_grep "^100755" ls-files-output
 '
 
 test_expect_success FILEMODE 'empty mode is rejected' '
diff --git a/t/t4202-log.sh b/t/t4202-log.sh
index 7086366..60fe60d 100755
--- a/t/t4202-log.sh
+++ b/t/t4202-log.sh
@@ -2255,23 +2255,6 @@
 	test_grep does.not.have.any.commits stderr
 '
 
-test_expect_success REFFILES 'log diagnoses bogus HEAD hash' '
-	git init empty &&
-	test_when_finished "rm -rf empty" &&
-	echo 1234abcd >empty/.git/refs/heads/main &&
-	test_must_fail git -C empty log 2>stderr &&
-	test_grep broken stderr
-'
-
-test_expect_success REFFILES 'log diagnoses bogus HEAD symref' '
-	git init empty &&
-	echo "ref: refs/heads/invalid.lock" > empty/.git/HEAD &&
-	test_must_fail git -C empty log 2>stderr &&
-	test_grep broken stderr &&
-	test_must_fail git -C empty log --default totally-bogus 2>stderr &&
-	test_grep broken stderr
-'
-
 test_expect_success 'log does not default to HEAD when rev input is given' '
 	git log --branches=does-not-exist >actual &&
 	test_must_be_empty actual
diff --git a/t/t4207-log-decoration-colors.sh b/t/t4207-log-decoration-colors.sh
index 21986a8..73ea9e5 100755
--- a/t/t4207-log-decoration-colors.sh
+++ b/t/t4207-log-decoration-colors.sh
@@ -70,8 +70,14 @@
 	cmp_filtered_decorations
 '
 
+remove_replace_refs () {
+	git for-each-ref 'refs/replace*/**' --format='delete %(refname)' >in &&
+	git update-ref --stdin <in &&
+	rm in
+}
+
 test_expect_success 'test coloring with replace-objects' '
-	test_when_finished rm -rf .git/refs/replace* &&
+	test_when_finished remove_replace_refs &&
 	test_commit C &&
 	test_commit D &&
 
@@ -99,7 +105,7 @@
 '
 
 test_expect_success 'test coloring with grafted commit' '
-	test_when_finished rm -rf .git/refs/replace* &&
+	test_when_finished remove_replace_refs &&
 
 	git replace --graft HEAD HEAD~2 &&
 
diff --git a/t/t5003-archive-zip.sh b/t/t5003-archive-zip.sh
index fc499cd..961c6aa 100755
--- a/t/t5003-archive-zip.sh
+++ b/t/t5003-archive-zip.sh
@@ -239,4 +239,38 @@
 check_added with_untracked2 untracked one/untracked
 check_added with_untracked2 untracked two/untracked
 
+# Test remote archive over HTTP protocol.
+#
+# Note: this should be the last part of this test suite, because
+# by including lib-httpd.sh, the test may end early if httpd tests
+# should not be run.
+#
+. "$TEST_DIRECTORY"/lib-httpd.sh
+start_httpd
+
+test_expect_success "setup for HTTP protocol" '
+	cp -R bare.git "$HTTPD_DOCUMENT_ROOT_PATH/bare.git" &&
+	git -C "$HTTPD_DOCUMENT_ROOT_PATH/bare.git" \
+		config http.uploadpack true &&
+	set_askpass user@host pass@host
+'
+
+setup_askpass_helper
+
+test_expect_success 'remote archive does not work with protocol v1' '
+	test_must_fail git -c protocol.version=1 archive \
+		--remote="$HTTPD_URL/auth/smart/bare.git" \
+		--output=remote-http.zip HEAD >actual 2>&1 &&
+	cat >expect <<-EOF &&
+	fatal: can${SQ}t connect to subservice git-upload-archive
+	EOF
+	test_cmp expect actual
+'
+
+test_expect_success 'archive remote http repository' '
+	git archive --remote="$HTTPD_URL/auth/smart/bare.git" \
+		--output=remote-http.zip HEAD &&
+	test_cmp_bin d.zip remote-http.zip
+'
+
 test_done
diff --git a/t/t5300-pack-object.sh b/t/t5300-pack-object.sh
index d402ec1..a58f910 100755
--- a/t/t5300-pack-object.sh
+++ b/t/t5300-pack-object.sh
@@ -441,6 +441,47 @@
 	)
 '
 
+test_expect_success 'setup for --strict and --fsck-objects downgrading fsck msgs' '
+	git init strict &&
+	(
+		cd strict &&
+		test_commit first hello &&
+		cat >commit <<-EOF &&
+		tree $(git rev-parse HEAD^{tree})
+		parent $(git rev-parse HEAD)
+		author A U Thor
+		committer A U Thor
+
+		commit: this is a commit with bad emails
+
+		EOF
+		git hash-object --literally -t commit -w --stdin <commit >commit_list &&
+		git pack-objects test <commit_list >pack-name
+	)
+'
+
+test_with_bad_commit () {
+	must_fail_arg="$1" &&
+	must_pass_arg="$2" &&
+	(
+		cd strict &&
+		test_expect_fail git index-pack "$must_fail_arg" "test-$(cat pack-name).pack"
+		git index-pack "$must_pass_arg" "test-$(cat pack-name).pack"
+	)
+}
+
+test_expect_success 'index-pack with --strict downgrading fsck msgs' '
+	test_with_bad_commit --strict --strict="missingEmail=ignore"
+'
+
+test_expect_success 'index-pack with --fsck-objects downgrading fsck msgs' '
+	test_with_bad_commit --fsck-objects --fsck-objects="missingEmail=ignore"
+'
+
+test_expect_success 'cleanup for --strict and --fsck-objects downgrading fsck msgs' '
+	rm -rf strict
+'
+
 test_expect_success 'honor pack.packSizeLimit' '
 	git config pack.packSizeLimit 3m &&
 	packname_10=$(git pack-objects test-10 <obj-list) &&
diff --git a/t/t5312-prune-corruption.sh b/t/t5312-prune-corruption.sh
index 230cb38..d8d2e30 100755
--- a/t/t5312-prune-corruption.sh
+++ b/t/t5312-prune-corruption.sh
@@ -111,30 +111,4 @@
 	test_cmp expect actual
 '
 
-# we do not want to count on running pack-refs to
-# actually pack it, as it is perfectly reasonable to
-# skip processing a broken ref
-test_expect_success REFFILES 'create packed-refs file with broken ref' '
-	rm -f .git/refs/heads/main &&
-	cat >.git/packed-refs <<-EOF &&
-	$missing refs/heads/main
-	$recoverable refs/heads/other
-	EOF
-	echo $missing >expect &&
-	git rev-parse refs/heads/main >actual &&
-	test_cmp expect actual
-'
-
-test_expect_success REFFILES 'pack-refs does not silently delete broken packed ref' '
-	git pack-refs --all --prune &&
-	git rev-parse refs/heads/main >actual &&
-	test_cmp expect actual
-'
-
-test_expect_success REFFILES  'pack-refs does not drop broken refs during deletion' '
-	git update-ref -d refs/heads/other &&
-	git rev-parse refs/heads/main >actual &&
-	test_cmp expect actual
-'
-
 test_done
diff --git a/t/t5318-commit-graph.sh b/t/t5318-commit-graph.sh
index 4c751a6..a2b4442 100755
--- a/t/t5318-commit-graph.sh
+++ b/t/t5318-commit-graph.sh
@@ -540,17 +540,17 @@
 
 test_expect_success 'detect missing OID fanout chunk' '
 	corrupt_graph_and_verify $GRAPH_BYTE_OID_FANOUT_ID "\0" \
-		"missing the OID Fanout chunk"
+		"commit-graph required OID fanout chunk missing or corrupted"
 '
 
 test_expect_success 'detect missing OID lookup chunk' '
 	corrupt_graph_and_verify $GRAPH_BYTE_OID_LOOKUP_ID "\0" \
-		"missing the OID Lookup chunk"
+		"commit-graph required OID lookup chunk missing or corrupted"
 '
 
 test_expect_success 'detect missing commit data chunk' '
 	corrupt_graph_and_verify $GRAPH_BYTE_COMMIT_DATA_ID "\0" \
-		"missing the Commit Data chunk"
+		"commit-graph required commit data chunk missing or corrupted"
 '
 
 test_expect_success 'detect incorrect fanout' '
@@ -560,7 +560,7 @@
 
 test_expect_success 'detect incorrect fanout final value' '
 	corrupt_graph_and_verify $GRAPH_BYTE_FANOUT2 "\01" \
-		"oid table and fanout disagree on size"
+		"OID lookup chunk is the wrong size"
 '
 
 test_expect_success 'detect incorrect OID order' '
@@ -842,7 +842,7 @@
 	check_corrupt_chunk OIDF clear $(printf "000000%02x" $(test_seq 250)) &&
 	cat >expect.err <<-\EOF &&
 	error: commit-graph oid fanout chunk is wrong size
-	error: commit-graph is missing the OID Fanout chunk
+	error: commit-graph required OID fanout chunk missing or corrupted
 	EOF
 	test_cmp expect.err err
 '
@@ -850,7 +850,8 @@
 test_expect_success 'reader notices fanout/lookup table mismatch' '
 	check_corrupt_chunk OIDF 1020 "FFFFFFFF" &&
 	cat >expect.err <<-\EOF &&
-	error: commit-graph oid table and fanout disagree on size
+	error: commit-graph OID lookup chunk is the wrong size
+	error: commit-graph required OID lookup chunk missing or corrupted
 	EOF
 	test_cmp expect.err err
 '
@@ -866,6 +867,7 @@
 	check_corrupt_chunk OIDF 0 $(printf "%02x000000" $(test_seq 0 254)) &&
 	cat >expect.err <<-\EOF &&
 	error: commit-graph fanout values out of order
+	error: commit-graph required OID fanout chunk missing or corrupted
 	EOF
 	test_cmp expect.err err
 '
@@ -874,7 +876,7 @@
 	check_corrupt_chunk CDAT clear 00000000 &&
 	cat >expect.err <<-\EOF &&
 	error: commit-graph commit data chunk is wrong size
-	error: commit-graph is missing the Commit Data chunk
+	error: commit-graph required commit data chunk missing or corrupted
 	EOF
 	test_cmp expect.err err
 '
diff --git a/t/t5319-multi-pack-index.sh b/t/t5319-multi-pack-index.sh
index c4c6060..dd09134 100755
--- a/t/t5319-multi-pack-index.sh
+++ b/t/t5319-multi-pack-index.sh
@@ -1157,4 +1157,53 @@
 	test_cmp expect.err err
 '
 
+test_expect_success 'reader notices out-of-bounds fanout' '
+	# This is similar to the out-of-bounds fanout test in t5318. The values
+	# in adjacent entries should be large but not identical (they
+	# are used as hi/lo starts for a binary search, which would then abort
+	# immediately).
+	corrupt_chunk OIDF 0 $(printf "%02x000000" $(test_seq 0 254)) &&
+	test_must_fail git log 2>err &&
+	cat >expect <<-\EOF &&
+	error: oid fanout out of order: fanout[254] = fe000000 > 5c = fanout[255]
+	fatal: multi-pack-index required OID fanout chunk missing or corrupted
+	EOF
+	test_cmp expect err
+'
+
+test_expect_success 'bitmapped packs are stored via the BTMP chunk' '
+	test_when_finished "rm -fr repo" &&
+	git init repo &&
+	(
+		cd repo &&
+
+		for i in 1 2 3 4 5
+		do
+			test_commit "$i" &&
+			git repack -d || return 1
+		done &&
+
+		find $objdir/pack -type f -name "*.idx" | xargs -n 1 basename |
+		sort >packs &&
+
+		git multi-pack-index write --stdin-packs <packs &&
+		test_must_fail test-tool read-midx --bitmap $objdir 2>err &&
+		cat >expect <<-\EOF &&
+		error: MIDX does not contain the BTMP chunk
+		EOF
+		test_cmp expect err &&
+
+		git multi-pack-index write --stdin-packs --bitmap \
+			--preferred-pack="$(head -n1 <packs)" <packs  &&
+		test-tool read-midx --bitmap $objdir >actual &&
+		for i in $(test_seq $(wc -l <packs))
+		do
+			sed -ne "${i}s/\.idx$/\.pack/p" packs &&
+			echo "  bitmap_pos: $((($i - 1) * 3))" &&
+			echo "  bitmap_nr: 3" || return 1
+		done >expect &&
+		test_cmp expect actual
+	)
+'
+
 test_done
diff --git a/t/t5332-multi-pack-reuse.sh b/t/t5332-multi-pack-reuse.sh
new file mode 100755
index 0000000..3c20738
--- /dev/null
+++ b/t/t5332-multi-pack-reuse.sh
@@ -0,0 +1,207 @@
+#!/bin/sh
+
+test_description='pack-objects multi-pack reuse'
+
+TEST_PASSES_SANITIZE_LEAK=true
+. ./test-lib.sh
+. "$TEST_DIRECTORY"/lib-bitmap.sh
+
+objdir=.git/objects
+packdir=$objdir/pack
+
+test_pack_reused () {
+	test_trace2_data pack-objects pack-reused "$1"
+}
+
+test_packs_reused () {
+	test_trace2_data pack-objects packs-reused "$1"
+}
+
+
+# pack_position <object> </path/to/pack.idx
+pack_position () {
+	git show-index >objects &&
+	grep "$1" objects | cut -d" " -f1
+}
+
+# test_pack_objects_reused_all <pack-reused> <packs-reused>
+test_pack_objects_reused_all () {
+	: >trace2.txt &&
+	GIT_TRACE2_EVENT="$PWD/trace2.txt" \
+		git pack-objects --stdout --revs --all --delta-base-offset \
+		>/dev/null &&
+
+	test_pack_reused "$1" <trace2.txt &&
+	test_packs_reused "$2" <trace2.txt
+}
+
+# test_pack_objects_reused <pack-reused> <packs-reused>
+test_pack_objects_reused () {
+	: >trace2.txt &&
+	GIT_TRACE2_EVENT="$PWD/trace2.txt" \
+		git pack-objects --stdout --revs >/dev/null &&
+
+	test_pack_reused "$1" <trace2.txt &&
+	test_packs_reused "$2" <trace2.txt
+}
+
+test_expect_success 'preferred pack is reused for single-pack reuse' '
+	test_config pack.allowPackReuse single &&
+
+	for i in A B
+	do
+		test_commit "$i" &&
+		git repack -d || return 1
+	done &&
+
+	git multi-pack-index write --bitmap &&
+
+	test_pack_objects_reused_all 3 1
+'
+
+test_expect_success 'multi-pack reuse is disabled by default' '
+	test_pack_objects_reused_all 3 1
+'
+
+test_expect_success 'feature.experimental implies multi-pack reuse' '
+	test_config feature.experimental true &&
+
+	test_pack_objects_reused_all 6 2
+'
+
+test_expect_success 'multi-pack reuse can be disabled with feature.experimental' '
+	test_config feature.experimental true &&
+	test_config pack.allowPackReuse single &&
+
+	test_pack_objects_reused_all 3 1
+'
+
+test_expect_success 'enable multi-pack reuse' '
+	git config pack.allowPackReuse multi
+'
+
+test_expect_success 'reuse all objects from subset of bitmapped packs' '
+	test_commit C &&
+	git repack -d &&
+
+	git multi-pack-index write --bitmap &&
+
+	cat >in <<-EOF &&
+	$(git rev-parse C)
+	^$(git rev-parse A)
+	EOF
+
+	test_pack_objects_reused 6 2 <in
+'
+
+test_expect_success 'reuse all objects from all packs' '
+	test_pack_objects_reused_all 9 3
+'
+
+test_expect_success 'reuse objects from first pack with middle gap' '
+	for i in D E F
+	do
+		test_commit "$i" || return 1
+	done &&
+
+	# Set "pack.window" to zero to ensure that we do not create any
+	# deltas, which could alter the amount of pack reuse we perform
+	# (if, for e.g., we are not sending one or more bases).
+	D="$(git -c pack.window=0 pack-objects --all --unpacked $packdir/pack)" &&
+
+	d_pos="$(pack_position $(git rev-parse D) <$packdir/pack-$D.idx)" &&
+	e_pos="$(pack_position $(git rev-parse E) <$packdir/pack-$D.idx)" &&
+	f_pos="$(pack_position $(git rev-parse F) <$packdir/pack-$D.idx)" &&
+
+	# commits F, E, and D, should appear in that order at the
+	# beginning of the pack
+	test $f_pos -lt $e_pos &&
+	test $e_pos -lt $d_pos &&
+
+	# Ensure that the pack we are constructing sorts ahead of any
+	# other packs in lexical/bitmap order by choosing it as the
+	# preferred pack.
+	git multi-pack-index write --bitmap --preferred-pack="pack-$D.idx" &&
+
+	cat >in <<-EOF &&
+	$(git rev-parse E)
+	^$(git rev-parse D)
+	EOF
+
+	test_pack_objects_reused 3 1 <in
+'
+
+test_expect_success 'reuse objects from middle pack with middle gap' '
+	rm -fr $packdir/multi-pack-index* &&
+
+	# Ensure that the pack we are constructing sort into any
+	# position *but* the first one, by choosing a different pack as
+	# the preferred one.
+	git multi-pack-index write --bitmap --preferred-pack="pack-$A.idx" &&
+
+	cat >in <<-EOF &&
+	$(git rev-parse E)
+	^$(git rev-parse D)
+	EOF
+
+	test_pack_objects_reused 3 1 <in
+'
+
+test_expect_success 'omit delta with uninteresting base (same pack)' '
+	git repack -adk &&
+
+	test_seq 32 >f &&
+	git add f &&
+	test_tick &&
+	git commit -m "delta" &&
+	delta="$(git rev-parse HEAD)" &&
+
+	test_seq 64 >f &&
+	test_tick &&
+	git commit -a -m "base" &&
+	base="$(git rev-parse HEAD)" &&
+
+	test_commit other &&
+
+	git repack -d &&
+
+	have_delta "$(git rev-parse $delta:f)" "$(git rev-parse $base:f)" &&
+
+	git multi-pack-index write --bitmap &&
+
+	cat >in <<-EOF &&
+	$(git rev-parse other)
+	^$base
+	EOF
+
+	# We can only reuse the 3 objects corresponding to "other" from
+	# the latest pack.
+	#
+	# This is because even though we want "delta", we do not want
+	# "base", meaning that we have to inflate the delta/base-pair
+	# corresponding to the blob in commit "delta", which bypasses
+	# the pack-reuse mechanism.
+	#
+	# The remaining objects from the other pack are similarly not
+	# reused because their objects are on the uninteresting side of
+	# the query.
+	test_pack_objects_reused 3 1 <in
+'
+
+test_expect_success 'omit delta from uninteresting base (cross pack)' '
+	cat >in <<-EOF &&
+	$(git rev-parse $base)
+	^$(git rev-parse $delta)
+	EOF
+
+	P="$(git pack-objects --revs $packdir/pack <in)" &&
+
+	git multi-pack-index write --bitmap --preferred-pack="pack-$P.idx" &&
+
+	packs_nr="$(find $packdir -type f -name "pack-*.pack" | wc -l)" &&
+	objects_nr="$(git rev-list --count --all --objects)" &&
+
+	test_pack_objects_reused_all $(($objects_nr - 1)) $packs_nr
+'
+
+test_done
diff --git a/t/t5510-fetch.sh b/t/t5510-fetch.sh
index 91e87b1..33d34d5 100755
--- a/t/t5510-fetch.sh
+++ b/t/t5510-fetch.sh
@@ -169,6 +169,7 @@
 	git clone . prune-fail &&
 	cd prune-fail &&
 	git update-ref refs/remotes/origin/extrabranch main &&
+	git pack-refs --all &&
 	: this will prevent --prune from locking packed-refs for deleting refs, but adding loose refs still succeeds  &&
 	>.git/packed-refs.new &&
 
diff --git a/t/t5514-fetch-multiple.sh b/t/t5514-fetch-multiple.sh
index a95841d..25772c8 100755
--- a/t/t5514-fetch-multiple.sh
+++ b/t/t5514-fetch-multiple.sh
@@ -24,6 +24,15 @@
 	)
 }
 
+setup_test_clone () {
+	test_dir="$1" &&
+	git clone one "$test_dir" &&
+	for r in one two three
+	do
+		git -C "$test_dir" remote add "$r" "../$r" || return 1
+	done
+}
+
 test_expect_success setup '
 	setup_repository one &&
 	setup_repository two &&
@@ -209,4 +218,156 @@
 	 git fetch --multiple --jobs=0)
 '
 
+create_fetch_all_expect () {
+	cat >expect <<-\EOF
+	  one/main
+	  one/side
+	  origin/HEAD -> origin/main
+	  origin/main
+	  origin/side
+	  three/another
+	  three/main
+	  three/side
+	  two/another
+	  two/main
+	  two/side
+	EOF
+}
+
+for fetch_all in true false
+do
+	test_expect_success "git fetch --all (works with fetch.all = $fetch_all)" '
+		test_dir="test_fetch_all_$fetch_all" &&
+		setup_test_clone "$test_dir" &&
+		(
+			cd "$test_dir" &&
+			git config fetch.all $fetch_all &&
+			git fetch --all &&
+			create_fetch_all_expect &&
+			git branch -r >actual &&
+			test_cmp expect actual
+		)
+	'
+done
+
+test_expect_success 'git fetch (fetch all remotes with fetch.all = true)' '
+	setup_test_clone test9 &&
+	(
+		cd test9 &&
+		git config fetch.all true &&
+		git fetch &&
+		git branch -r >actual &&
+		create_fetch_all_expect &&
+		test_cmp expect actual
+	)
+'
+
+create_fetch_one_expect () {
+	cat >expect <<-\EOF
+	  one/main
+	  one/side
+	  origin/HEAD -> origin/main
+	  origin/main
+	  origin/side
+	EOF
+}
+
+test_expect_success 'git fetch one (explicit remote overrides fetch.all)' '
+	setup_test_clone test10 &&
+	(
+		cd test10 &&
+		git config fetch.all true &&
+		git fetch one &&
+		create_fetch_one_expect &&
+		git branch -r >actual &&
+		test_cmp expect actual
+	)
+'
+
+create_fetch_two_as_origin_expect () {
+	cat >expect <<-\EOF
+	  origin/HEAD -> origin/main
+	  origin/another
+	  origin/main
+	  origin/side
+	EOF
+}
+
+test_expect_success 'git config fetch.all false (fetch only default remote)' '
+	setup_test_clone test11 &&
+	(
+		cd test11 &&
+		git config fetch.all false &&
+		git remote set-url origin ../two &&
+		git fetch &&
+		create_fetch_two_as_origin_expect &&
+		git branch -r >actual &&
+		test_cmp expect actual
+	)
+'
+
+for fetch_all in true false
+do
+	test_expect_success "git fetch --no-all (fetch only default remote with fetch.all = $fetch_all)" '
+		test_dir="test_no_all_fetch_all_$fetch_all" &&
+		setup_test_clone "$test_dir" &&
+		(
+			cd "$test_dir" &&
+			git config fetch.all $fetch_all &&
+			git remote set-url origin ../two &&
+			git fetch --no-all &&
+			create_fetch_two_as_origin_expect &&
+			git branch -r >actual &&
+			test_cmp expect actual
+		)
+	'
+done
+
+test_expect_success 'git fetch --no-all (fetch only default remote without fetch.all)' '
+	setup_test_clone test12 &&
+	(
+		cd test12 &&
+		git config --unset-all fetch.all || true &&
+		git remote set-url origin ../two &&
+		git fetch --no-all &&
+		create_fetch_two_as_origin_expect &&
+		git branch -r >actual &&
+		test_cmp expect actual
+	)
+'
+
+test_expect_success 'git fetch --all --no-all (fetch only default remote)' '
+	setup_test_clone test13 &&
+	(
+		cd test13 &&
+		git remote set-url origin ../two &&
+		git fetch --all --no-all &&
+		create_fetch_two_as_origin_expect &&
+		git branch -r >actual &&
+		test_cmp expect actual
+	)
+'
+
+test_expect_success 'git fetch --no-all one (fetch only explicit remote)' '
+	setup_test_clone test14 &&
+	(
+		cd test14 &&
+		git fetch --no-all one &&
+		create_fetch_one_expect &&
+		git branch -r >actual &&
+		test_cmp expect actual
+	)
+'
+
+test_expect_success 'git fetch --no-all --all (fetch all remotes)' '
+	setup_test_clone test15 &&
+	(
+		cd test15 &&
+		git fetch --no-all --all &&
+		create_fetch_all_expect &&
+		git branch -r >actual &&
+		test_cmp expect actual
+	)
+'
+
 test_done
diff --git a/t/t5526-fetch-submodules.sh b/t/t5526-fetch-submodules.sh
index 26e933f..5e56620 100755
--- a/t/t5526-fetch-submodules.sh
+++ b/t/t5526-fetch-submodules.sh
@@ -771,7 +771,7 @@
 	git -C dst fetch --recurse-submodules &&
 
 	# Break the receiving submodule
-	rm -f dst/sub/.git/HEAD &&
+	rm -r dst/sub/.git/objects &&
 
 	# NOTE: without the fix the following tests will recurse forever!
 	# They should terminate with an error.
diff --git a/t/t5541-http-push-smart.sh b/t/t5541-http-push-smart.sh
index df758e1..71428f3 100755
--- a/t/t5541-http-push-smart.sh
+++ b/t/t5541-http-push-smart.sh
@@ -232,8 +232,9 @@
 	test_config -C "$d" http.receivepack true &&
 	up="$HTTPD_URL"/smart/atomic-branches.git &&
 
-	# break ref updates for other on the remote site
-	mkdir "$d/refs/heads/other.lock" &&
+	# Create d/f conflict to break ref updates for other on the remote site.
+	git -C "$d" update-ref -d refs/heads/other &&
+	git -C "$d" update-ref refs/heads/other/conflict HEAD &&
 
 	# add the new commit to other
 	git branch -f other collateral &&
@@ -241,18 +242,9 @@
 	# --atomic should cause entire push to be rejected
 	test_must_fail git push --atomic "$up" atomic other 2>output  &&
 
-	# the new branch should not have been created upstream
+	# The atomic and other branches should not be created upstream.
 	test_must_fail git -C "$d" show-ref --verify refs/heads/atomic &&
-
-	# upstream should still reflect atomic2, the last thing we pushed
-	# successfully
-	git rev-parse atomic2 >expected &&
-	# ...to other.
-	git -C "$d" rev-parse refs/heads/other >actual &&
-	test_cmp expected actual &&
-
-	# the new branch should not have been created upstream
-	test_must_fail git -C "$d" show-ref --verify refs/heads/atomic &&
+	test_must_fail git -C "$d" show-ref --verify refs/heads/other &&
 
 	# the failed refs should be indicated to the user
 	grep "^ ! .*rejected.* other -> other .*atomic transaction failed" output &&
diff --git a/t/t5550-http-fetch-dumb.sh b/t/t5550-http-fetch-dumb.sh
index e444b30..4c3b327 100755
--- a/t/t5550-http-fetch-dumb.sh
+++ b/t/t5550-http-fetch-dumb.sh
@@ -66,11 +66,11 @@
 	setup_post_update_server_info_hook "$HTTPD_DOCUMENT_ROOT_PATH/empty.git"
 '
 
-test_expect_success 'empty dumb HTTP repository has default hash algorithm' '
+test_expect_success 'empty dumb HTTP repository falls back to SHA1' '
 	test_when_finished "rm -fr clone-empty" &&
 	git clone $HTTPD_URL/dumb/empty.git clone-empty &&
 	git -C clone-empty rev-parse --show-object-format >empty-format &&
-	test "$(cat empty-format)" = "$(test_oid algo)"
+	test "$(cat empty-format)" = sha1
 '
 
 setup_askpass_helper
diff --git a/t/t5551-http-fetch-smart.sh b/t/t5551-http-fetch-smart.sh
index e069737..a623a10 100755
--- a/t/t5551-http-fetch-smart.sh
+++ b/t/t5551-http-fetch-smart.sh
@@ -733,4 +733,22 @@
 	! grep "//" log
 '
 
+test_expect_success 'tag following always works over v0 http' '
+	upstream=$HTTPD_DOCUMENT_ROOT_PATH/tags &&
+	git init "$upstream" &&
+	(
+		cd "$upstream" &&
+		git commit --allow-empty -m base &&
+		git tag not-annotated &&
+		git tag -m foo annotated
+	) &&
+	git init tags &&
+	git -C tags -c protocol.version=0 \
+		fetch --depth 1 $HTTPD_URL/smart/tags \
+		refs/tags/annotated:refs/tags/annotated &&
+	git -C "$upstream" for-each-ref refs/tags >expect &&
+	git -C tags for-each-ref >actual &&
+	test_cmp expect actual
+'
+
 test_done
diff --git a/t/t5558-clone-bundle-uri.sh b/t/t5558-clone-bundle-uri.sh
index 996a08e..1ca5f74 100755
--- a/t/t5558-clone-bundle-uri.sh
+++ b/t/t5558-clone-bundle-uri.sh
@@ -33,6 +33,15 @@
 	test_cmp expect actual
 '
 
+test_expect_success 'clone with path bundle and non-default hash' '
+	test_when_finished "rm -rf clone-path-non-default-hash" &&
+	GIT_DEFAULT_HASH=sha256 git clone --bundle-uri="clone-from/B.bundle" \
+		clone-from clone-path-non-default-hash &&
+	git -C clone-path-non-default-hash rev-parse refs/bundles/topic >actual &&
+	git -C clone-from rev-parse topic >expect &&
+	test_cmp expect actual
+'
+
 test_expect_success 'clone with file:// bundle' '
 	git clone --bundle-uri="file://$(pwd)/clone-from/B.bundle" \
 		clone-from clone-file &&
@@ -284,6 +293,15 @@
 	test_config -C clone-http log.excludedecoration refs/bundle/
 '
 
+test_expect_success 'clone HTTP bundle with non-default hash' '
+	test_when_finished "rm -rf clone-http-non-default-hash" &&
+	GIT_DEFAULT_HASH=sha256 git clone --bundle-uri="$HTTPD_URL/B.bundle" \
+		"$HTTPD_URL/smart/fetch.git" clone-http-non-default-hash &&
+	git -C clone-http-non-default-hash rev-parse refs/bundles/topic >actual &&
+	git -C clone-from rev-parse topic >expect &&
+	test_cmp expect actual
+'
+
 test_expect_success 'clone bundle list (HTTP, no heuristic)' '
 	test_when_finished rm -f trace*.txt &&
 
diff --git a/t/t5601-clone.sh b/t/t5601-clone.sh
index 47eae64..fb1b9c6 100755
--- a/t/t5601-clone.sh
+++ b/t/t5601-clone.sh
@@ -157,6 +157,23 @@
 
 '
 
+test_expect_success 'clone with files ref format' '
+	test_when_finished "rm -rf ref-storage" &&
+	git clone --ref-format=files --mirror src ref-storage &&
+	echo files >expect &&
+	git -C ref-storage rev-parse --show-ref-format >actual &&
+	test_cmp expect actual
+'
+
+test_expect_success 'clone with garbage ref format' '
+	cat >expect <<-EOF &&
+	fatal: unknown ref storage format ${SQ}garbage${SQ}
+	EOF
+	test_must_fail git clone --ref-format=garbage --mirror src ref-storage 2>err &&
+	test_cmp expect err &&
+	test_path_is_missing ref-storage
+'
+
 test_expect_success 'clone to destination with trailing /' '
 
 	git clone src target-1/ &&
diff --git a/t/t5605-clone-local.sh b/t/t5605-clone-local.sh
index 946c575..a305586 100755
--- a/t/t5605-clone-local.sh
+++ b/t/t5605-clone-local.sh
@@ -65,7 +65,7 @@
 '
 
 test_expect_success 'local clone of repo with nonexistent ref in HEAD' '
-	echo "ref: refs/heads/nonexistent" > a.git/HEAD &&
+	git -C a.git symbolic-ref HEAD refs/heads/nonexistent &&
 	git clone a d &&
 	(cd d &&
 	git fetch &&
@@ -157,7 +157,7 @@
 	test_must_fail git clone --bare -u false a should_not_work.git
 '
 
-test_expect_success 'local clone from repo with corrupt refs fails gracefully' '
+test_expect_success REFFILES 'local clone from repo with corrupt refs fails gracefully' '
 	git init corrupt &&
 	test_commit -C corrupt one &&
 	echo a >corrupt/.git/refs/heads/topic &&
diff --git a/t/t5702-protocol-v2.sh b/t/t5702-protocol-v2.sh
index 3c0c604..6ef4971 100755
--- a/t/t5702-protocol-v2.sh
+++ b/t/t5702-protocol-v2.sh
@@ -221,7 +221,9 @@
 	GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME= \
 	git -c init.defaultBranch=main -c protocol.version=2 \
 		clone "file://$(pwd)/file_empty_parent" file_empty_child &&
-	grep "refs/heads/mydefaultbranch" file_empty_child/.git/HEAD
+	echo refs/heads/mydefaultbranch >expect &&
+	git -C file_empty_child symbolic-ref HEAD >actual &&
+	test_cmp expect actual
 '
 
 test_expect_success '...but not if explicitly forbidden by config' '
@@ -234,7 +236,9 @@
 	GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME= \
 	git -c init.defaultBranch=main -c protocol.version=2 \
 		clone "file://$(pwd)/file_empty_parent" file_empty_child &&
-	! grep "refs/heads/mydefaultbranch" file_empty_child/.git/HEAD
+	echo refs/heads/main >expect &&
+	git -C file_empty_child symbolic-ref HEAD >actual &&
+	test_cmp expect actual
 '
 
 test_expect_success 'bare clone propagates empty default branch' '
@@ -247,7 +251,9 @@
 	git -c init.defaultBranch=main -c protocol.version=2 \
 		clone --bare \
 		"file://$(pwd)/file_empty_parent" file_empty_child.git &&
-	grep "refs/heads/mydefaultbranch" file_empty_child.git/HEAD
+	echo "refs/heads/mydefaultbranch" >expect &&
+	git -C file_empty_child.git symbolic-ref HEAD >actual &&
+	test_cmp expect actual
 '
 
 test_expect_success 'clone propagates unborn HEAD from non-empty repo' '
@@ -265,7 +271,9 @@
 	git -c init.defaultBranch=main -c protocol.version=2 \
 		clone "file://$(pwd)/file_unborn_parent" \
 		file_unborn_child 2>stderr &&
-	grep "refs/heads/mydefaultbranch" file_unborn_child/.git/HEAD &&
+	echo "refs/heads/mydefaultbranch" >expect &&
+	git -C file_unborn_child symbolic-ref HEAD >actual &&
+	test_cmp expect actual &&
 	grep "warning: remote HEAD refers to nonexistent ref" stderr
 '
 
@@ -295,7 +303,9 @@
 	git -c init.defaultBranch=main -c protocol.version=2 \
 		clone --bare "file://$(pwd)/file_unborn_parent" \
 		file_unborn_child.git 2>stderr &&
-	grep "refs/heads/mydefaultbranch" file_unborn_child.git/HEAD &&
+	echo "refs/heads/mydefaultbranch" >expect &&
+	git -C file_unborn_child.git symbolic-ref HEAD >actual &&
+	test_cmp expect actual &&
 	! grep "warning:" stderr
 '
 
@@ -315,7 +325,9 @@
 	git -c init.defaultBranch=branchwithstuff -c protocol.version=2 \
 		clone "file://$(pwd)/file_unborn_parent" \
 		file_unborn_child 2>stderr &&
-	grep "refs/heads/branchwithstuff" file_unborn_child/.git/HEAD &&
+	echo "refs/heads/branchwithstuff" >expect &&
+	git -C file_unborn_child symbolic-ref HEAD >actual &&
+	test_cmp expect actual &&
 	test_path_is_file file_unborn_child/stuff.t &&
 	! grep "warning:" stderr
 '
diff --git a/t/t6030-bisect-porcelain.sh b/t/t6030-bisect-porcelain.sh
index 7b24d16..561080b 100755
--- a/t/t6030-bisect-porcelain.sh
+++ b/t/t6030-bisect-porcelain.sh
@@ -1182,7 +1182,7 @@
 	git bisect bad $HASH4 &&
 	git bisect reset &&
 	test -z "$(git for-each-ref "refs/bisect/*")" &&
-	test_path_is_missing ".git/BISECT_EXPECTED_REV" &&
+	test_ref_missing BISECT_EXPECTED_REV &&
 	test_path_is_missing ".git/BISECT_ANCESTORS_OK" &&
 	test_path_is_missing ".git/BISECT_LOG" &&
 	test_path_is_missing ".git/BISECT_RUN" &&
diff --git a/t/t6113-rev-list-bitmap-filters.sh b/t/t6113-rev-list-bitmap-filters.sh
index 86c7052..a9656a1 100755
--- a/t/t6113-rev-list-bitmap-filters.sh
+++ b/t/t6113-rev-list-bitmap-filters.sh
@@ -1,9 +1,12 @@
 #!/bin/sh
 
 test_description='rev-list combining bitmaps and filters'
+
+TEST_PASSES_SANITIZE_LEAK=true
 . ./test-lib.sh
 . "$TEST_DIRECTORY"/lib-bitmap.sh
 
+
 test_expect_success 'set up bitmapped repo' '
 	# one commit will have bitmaps, the other will not
 	test_commit one &&
diff --git a/t/t6135-pathspec-with-attrs.sh b/t/t6135-pathspec-with-attrs.sh
index a9c1e4e..120dcd7 100755
--- a/t/t6135-pathspec-with-attrs.sh
+++ b/t/t6135-pathspec-with-attrs.sh
@@ -64,12 +64,24 @@
 	fileSetLabel label
 	fileValue label=foo
 	fileWrongLabel label☺
+	newFileA* labelA
+	newFileB* labelB
 	EOF
 	echo fileSetLabel label1 >sub/.gitattributes &&
 	git add .gitattributes sub/.gitattributes &&
 	git commit -m "add attributes"
 '
 
+test_expect_success 'setup .gitignore' '
+	cat <<-\EOF >.gitignore &&
+	actual
+	expect
+	pathspec_file
+	EOF
+	git add .gitignore &&
+	git commit -m "add gitignore"
+'
+
 test_expect_success 'check specific set attr' '
 	cat <<-\EOF >expect &&
 	fileSetLabel
@@ -150,6 +162,7 @@
 test_expect_success 'check unspecified attr' '
 	cat <<-\EOF >expect &&
 	.gitattributes
+	.gitignore
 	fileA
 	fileAB
 	fileAC
@@ -175,6 +188,7 @@
 test_expect_success 'check unspecified attr (2)' '
 	cat <<-\EOF >expect &&
 	HEAD:.gitattributes
+	HEAD:.gitignore
 	HEAD:fileA
 	HEAD:fileAB
 	HEAD:fileAC
@@ -200,6 +214,7 @@
 test_expect_success 'check multiple unspecified attr' '
 	cat <<-\EOF >expect &&
 	.gitattributes
+	.gitignore
 	fileC
 	fileNoLabel
 	fileWrongLabel
@@ -239,16 +254,99 @@
 	test_grep "Only one" actual
 '
 
-test_expect_success 'fail if attr magic is used places not implemented' '
+test_expect_success 'fail if attr magic is used in places not implemented' '
 	# The main purpose of this test is to check that we actually fail
 	# when you attempt to use attr magic in commands that do not implement
-	# attr magic. This test does not advocate git-add to stay that way,
-	# though, but git-add is convenient as it has its own internal pathspec
-	# parsing.
-	test_must_fail git add ":(attr:labelB)" 2>actual &&
+	# attr magic. This test does not advocate check-ignore to stay that way.
+	# When you teach the command to grok the pathspec, you need to find
+	# another command to replace it for the test.
+	test_must_fail git check-ignore ":(attr:labelB)" 2>actual &&
 	test_grep "magic not supported" actual
 '
 
+test_expect_success 'check that attr magic works for git stash push' '
+	cat <<-\EOF >expect &&
+	A	sub/newFileA-foo
+	EOF
+	>sub/newFileA-foo &&
+	>sub/newFileB-foo &&
+	git stash push --include-untracked -- ":(exclude,attr:labelB)" &&
+	git stash show --include-untracked --name-status >actual &&
+	test_cmp expect actual
+'
+
+test_expect_success 'check that attr magic works for git add --all' '
+	cat <<-\EOF >expect &&
+	sub/newFileA-foo
+	EOF
+	>sub/newFileA-foo &&
+	>sub/newFileB-foo &&
+	git add --all ":(exclude,attr:labelB)" &&
+	git diff --name-only --cached >actual &&
+	git restore -W -S . &&
+	test_cmp expect actual
+'
+
+test_expect_success 'check that attr magic works for git add -u' '
+	cat <<-\EOF >expect &&
+	sub/fileA
+	EOF
+	>sub/newFileA-foo &&
+	>sub/newFileB-foo &&
+	>sub/fileA &&
+	>sub/fileB &&
+	git add -u ":(exclude,attr:labelB)" &&
+	git diff --name-only --cached  >actual &&
+	git restore -S -W . && rm sub/new* &&
+	test_cmp expect actual
+'
+
+test_expect_success 'check that attr magic works for git add <path>' '
+	cat <<-\EOF >expect &&
+	fileA
+	fileB
+	sub/fileA
+	EOF
+	>fileA &&
+	>fileB &&
+	>sub/fileA &&
+	>sub/fileB &&
+	git add ":(exclude,attr:labelB)sub/*" &&
+	git diff --name-only --cached >actual &&
+	git restore -S -W . &&
+	test_cmp expect actual
+'
+
+test_expect_success 'check that attr magic works for git -add .' '
+	cat <<-\EOF >expect &&
+	sub/fileA
+	EOF
+	>fileA &&
+	>fileB &&
+	>sub/fileA &&
+	>sub/fileB &&
+	cd sub &&
+	git add . ":(exclude,attr:labelB)" &&
+	cd .. &&
+	git diff --name-only --cached >actual &&
+	git restore -S -W . &&
+	test_cmp expect actual
+'
+
+test_expect_success 'check that attr magic works for git add --pathspec-from-file' '
+	cat <<-\EOF >pathspec_file &&
+	:(exclude,attr:labelB)
+	EOF
+	cat <<-\EOF >expect &&
+	sub/newFileA-foo
+	EOF
+	>sub/newFileA-foo &&
+	>sub/newFileB-foo &&
+	git add --all --pathspec-from-file=pathspec_file &&
+	git diff --name-only --cached >actual &&
+	test_cmp expect actual
+'
+
 test_expect_success 'abort on giving invalid label on the command line' '
 	test_must_fail git ls-files . ":(attr:☺)"
 '
@@ -295,4 +393,31 @@
 	test_cmp expect actual
 '
 
+test_expect_success POSIXPERM 'pathspec with builtin_objectmode attr can be used' '
+	>mode_exec_file_1 &&
+
+	git status -s ":(attr:builtin_objectmode=100644)mode_exec_*" >actual &&
+	echo ?? mode_exec_file_1 >expect &&
+	test_cmp expect actual &&
+
+	git add mode_exec_file_1 &&
+	chmod +x mode_exec_file_1 &&
+	git status -s ":(attr:builtin_objectmode=100755)mode_exec_*" >actual &&
+	echo AM mode_exec_file_1 >expect &&
+	test_cmp expect actual
+'
+
+test_expect_success POSIXPERM 'builtin_objectmode attr can be excluded' '
+	>mode_1_regular &&
+	>mode_1_exec  &&
+	chmod +x mode_1_exec &&
+	git status -s ":(exclude,attr:builtin_objectmode=100644)" "mode_1_*" >actual &&
+	echo ?? mode_1_exec >expect &&
+	test_cmp expect actual &&
+
+	git status -s ":(exclude,attr:builtin_objectmode=100755)" "mode_1_*" >actual &&
+	echo ?? mode_1_regular >expect &&
+	test_cmp expect actual
+'
+
 test_done
diff --git a/t/t6300-for-each-ref.sh b/t/t6300-for-each-ref.sh
index c65c795..eb6c820 100755
--- a/t/t6300-for-each-ref.sh
+++ b/t/t6300-for-each-ref.sh
@@ -1335,6 +1335,73 @@
 	test_cmp expected actual
 '
 
+test_expect_success '--no-sort without subsequent --sort prints expected refs' '
+	cat >expected <<-\EOF &&
+	refs/tags/multi-ref1-100000-user1
+	refs/tags/multi-ref1-100000-user2
+	refs/tags/multi-ref1-200000-user1
+	refs/tags/multi-ref1-200000-user2
+	refs/tags/multi-ref2-100000-user1
+	refs/tags/multi-ref2-100000-user2
+	refs/tags/multi-ref2-200000-user1
+	refs/tags/multi-ref2-200000-user2
+	EOF
+
+	# Sort the results with `sort` for a consistent comparison against
+	# expected
+	git for-each-ref \
+		--format="%(refname)" \
+		--no-sort \
+		"refs/tags/multi-*" | sort >actual &&
+	test_cmp expected actual
+'
+
+test_expect_success 'set up custom date sorting' '
+	# Dates:
+	# - Wed Feb 07 2024 21:34:20 +0000
+	# - Tue Dec 14 1999 00:05:22 +0000
+	# - Fri Jun 04 2021 11:26:51 +0000
+	# - Mon Jan 22 2007 16:44:01 GMT+0000
+	i=1 &&
+	for when in 1707341660 945129922 1622806011 1169484241
+	do
+		GIT_COMMITTER_DATE="@$when +0000" \
+		GIT_COMMITTER_EMAIL="user@example.com" \
+		git tag -m "tag $when" custom-dates-$i &&
+		i=$(($i+1)) || return 1
+	done
+'
+
+test_expect_success 'sort by date defaults to full timestamp' '
+	cat >expected <<-\EOF &&
+	945129922 refs/tags/custom-dates-2
+	1169484241 refs/tags/custom-dates-4
+	1622806011 refs/tags/custom-dates-3
+	1707341660 refs/tags/custom-dates-1
+	EOF
+
+	git for-each-ref \
+		--format="%(creatordate:unix) %(refname)" \
+		--sort=creatordate \
+		"refs/tags/custom-dates-*" >actual &&
+	test_cmp expected actual
+'
+
+test_expect_success 'sort by custom date format' '
+	cat >expected <<-\EOF &&
+	00:05:22 refs/tags/custom-dates-2
+	11:26:51 refs/tags/custom-dates-3
+	16:44:01 refs/tags/custom-dates-4
+	21:34:20 refs/tags/custom-dates-1
+	EOF
+
+	git for-each-ref \
+		--format="%(creatordate:format:%H:%M:%S) %(refname)" \
+		--sort="creatordate:format:%H:%M:%S" \
+		"refs/tags/custom-dates-*" >actual &&
+	test_cmp expected actual
+'
+
 test_expect_success 'do not dereference NULL upon %(HEAD) on unborn branch' '
 	test_when_finished "git checkout main" &&
 	git for-each-ref --format="%(HEAD) %(refname:short)" refs/heads/ >actual &&
@@ -1818,6 +1885,28 @@
 	test_must_be_empty actual
 '
 
+test_expect_success 'git for-each-ref with nested tags' '
+	git tag -am "Normal tag" nested/base HEAD &&
+	git tag -am "Nested tag" nested/nest1 refs/tags/nested/base &&
+	git tag -am "Double nested tag" nested/nest2 refs/tags/nested/nest1 &&
+
+	head_oid="$(git rev-parse HEAD)" &&
+	base_tag_oid="$(git rev-parse refs/tags/nested/base)" &&
+	nest1_tag_oid="$(git rev-parse refs/tags/nested/nest1)" &&
+	nest2_tag_oid="$(git rev-parse refs/tags/nested/nest2)" &&
+
+	cat >expect <<-EOF &&
+	refs/tags/nested/base $base_tag_oid tag $head_oid commit
+	refs/tags/nested/nest1 $nest1_tag_oid tag $head_oid commit
+	refs/tags/nested/nest2 $nest2_tag_oid tag $head_oid commit
+	EOF
+
+	git for-each-ref \
+		--format="%(refname) %(objectname) %(objecttype) %(*objectname) %(*objecttype)" \
+		refs/tags/nested/ >actual &&
+	test_cmp expect actual
+'
+
 GRADE_FORMAT="%(signature:grade)%0a%(signature:key)%0a%(signature:signer)%0a%(signature:fingerprint)%0a%(signature:primarykeyfingerprint)"
 TRUSTLEVEL_FORMAT="%(signature:trustlevel)%0a%(signature:key)%0a%(signature:signer)%0a%(signature:fingerprint)%0a%(signature:primarykeyfingerprint)"
 
diff --git a/t/t6302-for-each-ref-filter.sh b/t/t6302-for-each-ref-filter.sh
index af223e4..82f3d1e 100755
--- a/t/t6302-for-each-ref-filter.sh
+++ b/t/t6302-for-each-ref-filter.sh
@@ -45,8 +45,8 @@
 	sed -e "s/Z$//" >expect <<-\EOF &&
 	refs/heads/side Z
 	refs/tags/annotated-tag four
-	refs/tags/doubly-annotated-tag An annotated tag
-	refs/tags/doubly-signed-tag A signed tag
+	refs/tags/doubly-annotated-tag four
+	refs/tags/doubly-signed-tag four
 	refs/tags/four Z
 	refs/tags/signed-tag four
 	EOF
diff --git a/t/t6403-merge-file.sh b/t/t6403-merge-file.sh
index 2c92209..fb872c5 100755
--- a/t/t6403-merge-file.sh
+++ b/t/t6403-merge-file.sh
@@ -56,7 +56,67 @@
 	deduxit me super semitas jusitiae,
 	EOF
 
-	printf "propter nomen suum." >>new4.txt
+	printf "propter nomen suum." >>new4.txt &&
+
+	cat >base.c <<-\EOF &&
+	int f(int x, int y)
+	{
+		if (x == 0)
+		{
+			return y;
+		}
+		return x;
+	}
+
+	int g(size_t u)
+	{
+		while (u < 30)
+		{
+			u++;
+		}
+		return u;
+	}
+	EOF
+
+	cat >ours.c <<-\EOF &&
+	int g(size_t u)
+	{
+		while (u < 30)
+		{
+			u++;
+		}
+		return u;
+	}
+
+	int h(int x, int y, int z)
+	{
+		if (z == 0)
+		{
+			return x;
+		}
+		return y;
+	}
+	EOF
+
+	cat >theirs.c <<-\EOF
+	int f(int x, int y)
+	{
+		if (x == 0)
+		{
+			return y;
+		}
+		return x;
+	}
+
+	int g(size_t u)
+	{
+		while (u > 34)
+		{
+			u--;
+		}
+		return u;
+	}
+	EOF
 '
 
 test_expect_success 'merge with no changes' '
@@ -447,4 +507,66 @@
 	grep "not a git repository" err
 '
 
+test_expect_success 'merging C files with "myers" diff algorithm creates some spurious conflicts' '
+	cat >expect.c <<-\EOF &&
+	int g(size_t u)
+	{
+		while (u < 30)
+		{
+			u++;
+		}
+		return u;
+	}
+
+	int h(int x, int y, int z)
+	{
+	<<<<<<< ours.c
+		if (z == 0)
+	||||||| base.c
+		while (u < 30)
+	=======
+		while (u > 34)
+	>>>>>>> theirs.c
+		{
+	<<<<<<< ours.c
+			return x;
+	||||||| base.c
+			u++;
+	=======
+			u--;
+	>>>>>>> theirs.c
+		}
+		return y;
+	}
+	EOF
+
+	test_must_fail git merge-file -p --diff3 --diff-algorithm myers ours.c base.c theirs.c >myers_output.c &&
+	test_cmp expect.c myers_output.c
+'
+
+test_expect_success 'merging C files with "histogram" diff algorithm avoids some spurious conflicts' '
+	cat >expect.c <<-\EOF &&
+	int g(size_t u)
+	{
+		while (u > 34)
+		{
+			u--;
+		}
+		return u;
+	}
+
+	int h(int x, int y, int z)
+	{
+		if (z == 0)
+		{
+			return x;
+		}
+		return y;
+	}
+	EOF
+
+	git merge-file -p --diff3 --diff-algorithm histogram ours.c base.c theirs.c >histogram_output.c &&
+	test_cmp expect.c histogram_output.c
+'
+
 test_done
diff --git a/t/t6406-merge-attr.sh b/t/t6406-merge-attr.sh
index 72f8c17..156a1ef 100755
--- a/t/t6406-merge-attr.sh
+++ b/t/t6406-merge-attr.sh
@@ -42,11 +42,15 @@
 	#!/bin/sh
 
 	orig="$1" ours="$2" theirs="$3" exit="$4" path=$5
+	orig_name="$6" our_name="$7" their_name="$8"
 	(
 		echo "orig is $orig"
 		echo "ours is $ours"
 		echo "theirs is $theirs"
 		echo "path is $path"
+		echo "orig_name is $orig_name"
+		echo "our_name is $our_name"
+		echo "their_name is $their_name"
 		echo "=== orig ==="
 		cat "$orig"
 		echo "=== ours ==="
@@ -121,7 +125,7 @@
 
 	git reset --hard anchor &&
 	git config --replace-all \
-	merge.custom.driver "./custom-merge %O %A %B 0 %P" &&
+	merge.custom.driver "./custom-merge %O %A %B 0 %P %S %X %Y" &&
 	git config --replace-all \
 	merge.custom.name "custom merge driver for testing" &&
 
@@ -132,7 +136,8 @@
 	o=$(git unpack-file main^:text) &&
 	a=$(git unpack-file side^:text) &&
 	b=$(git unpack-file main:text) &&
-	sh -c "./custom-merge $o $a $b 0 text" &&
+	base_revid=$(git rev-parse --short main^) &&
+	sh -c "./custom-merge $o $a $b 0 text $base_revid HEAD main" &&
 	sed -e 1,3d $a >check-2 &&
 	cmp check-1 check-2 &&
 	rm -f $o $a $b
@@ -142,7 +147,7 @@
 
 	git reset --hard anchor &&
 	git config --replace-all \
-	merge.custom.driver "./custom-merge %O %A %B 1 %P" &&
+	merge.custom.driver "./custom-merge %O %A %B 1 %P %S %X %Y" &&
 	git config --replace-all \
 	merge.custom.name "custom merge driver for testing" &&
 
@@ -159,7 +164,8 @@
 	o=$(git unpack-file main^:text) &&
 	a=$(git unpack-file anchor:text) &&
 	b=$(git unpack-file main:text) &&
-	sh -c "./custom-merge $o $a $b 0 text" &&
+	base_revid=$(git rev-parse --short main^) &&
+	sh -c "./custom-merge $o $a $b 0 text $base_revid HEAD main" &&
 	sed -e 1,3d $a >check-2 &&
 	cmp check-1 check-2 &&
 	sed -e 1,3d -e 4q $a >check-3 &&
@@ -173,7 +179,7 @@
 
 	git reset --hard anchor &&
 	git config --replace-all \
-	merge.custom.driver "./custom-merge %O %A %B 0 %P" &&
+	merge.custom.driver "./custom-merge %O %A %B 0 %P %S %X %Y" &&
 	git config --replace-all \
 	merge.custom.name "custom merge driver for testing" &&
 
diff --git a/t/t6429-merge-sequence-rename-caching.sh b/t/t6429-merge-sequence-rename-caching.sh
index d02fa16..0f39ed0 100755
--- a/t/t6429-merge-sequence-rename-caching.sh
+++ b/t/t6429-merge-sequence-rename-caching.sh
@@ -71,8 +71,9 @@
 
 		git switch upstream &&
 
-		test-tool fast-rebase --onto HEAD upstream~1 topic &&
-		#git cherry-pick upstream~1..topic
+		git replay --onto HEAD upstream~1..topic >out &&
+		git update-ref --stdin <out &&
+		git checkout topic &&
 
 		git ls-files >tracked-files &&
 		test_line_count = 2 tracked-files &&
@@ -140,8 +141,9 @@
 		GIT_TRACE2_PERF="$(pwd)/trace.output" &&
 		export GIT_TRACE2_PERF &&
 
-		test-tool fast-rebase --onto HEAD upstream~1 topic &&
-		#git cherry-pick upstream~1..topic &&
+		git replay --onto HEAD upstream~1..topic >out &&
+		git update-ref --stdin <out &&
+		git checkout topic &&
 
 		grep region_enter.*diffcore_rename trace.output >calls &&
 		test_line_count = 1 calls
@@ -199,8 +201,9 @@
 		GIT_TRACE2_PERF="$(pwd)/trace.output" &&
 		export GIT_TRACE2_PERF &&
 
-		test-tool fast-rebase --onto HEAD upstream~1 topic &&
-		#git cherry-pick upstream~1..topic &&
+		git replay --onto HEAD upstream~1..topic >out &&
+		git update-ref --stdin <out &&
+		git checkout topic &&
 
 		git ls-files >tracked &&
 		test_line_count = 2 tracked &&
@@ -276,8 +279,9 @@
 		GIT_TRACE2_PERF="$(pwd)/trace.output" &&
 		export GIT_TRACE2_PERF &&
 
-		test-tool fast-rebase --onto HEAD upstream~1 topic &&
-		#git cherry-pick upstream~1..topic &&
+		git replay --onto HEAD upstream~1..topic >out &&
+		git update-ref --stdin <out &&
+		git checkout topic &&
 
 		git ls-files >tracked &&
 		test_line_count = 4 tracked &&
@@ -353,10 +357,7 @@
 		GIT_TRACE2_PERF="$(pwd)/trace.output" &&
 		export GIT_TRACE2_PERF &&
 
-		test_must_fail test-tool fast-rebase --onto HEAD upstream~1 topic >output &&
-		#git cherry-pick upstream..topic &&
-
-		grep CONFLICT..rename/rename output &&
+		test_must_fail git replay --onto HEAD upstream~1..topic >output &&
 
 		grep region_enter.*diffcore_rename trace.output >calls &&
 		test_line_count = 2 calls
@@ -455,8 +456,9 @@
 		GIT_TRACE2_PERF="$(pwd)/trace.output" &&
 		export GIT_TRACE2_PERF &&
 
-		test-tool fast-rebase --onto HEAD upstream~1 topic &&
-		#git cherry-pick upstream..topic &&
+		git replay --onto HEAD upstream~1..topic >out &&
+		git update-ref --stdin <out &&
+		git checkout topic &&
 
 		grep region_enter.*diffcore_rename trace.output >calls &&
 		test_line_count = 2 calls &&
@@ -521,8 +523,9 @@
 		GIT_TRACE2_PERF="$(pwd)/trace.output" &&
 		export GIT_TRACE2_PERF &&
 
-		test-tool fast-rebase --onto HEAD upstream~1 topic &&
-		#git cherry-pick upstream..topic &&
+		git replay --onto HEAD upstream~1..topic >out &&
+		git update-ref --stdin <out &&
+		git checkout topic &&
 
 		grep region_enter.*diffcore_rename trace.output >calls &&
 		test_line_count = 3 calls &&
@@ -623,8 +626,9 @@
 		GIT_TRACE2_PERF="$(pwd)/trace.output" &&
 		export GIT_TRACE2_PERF &&
 
-		test-tool fast-rebase --onto HEAD upstream~1 topic &&
-		#git cherry-pick upstream..topic &&
+		git replay --onto HEAD upstream~1..topic >out &&
+		git update-ref --stdin <out &&
+		git checkout topic &&
 
 		grep region_enter.*diffcore_rename trace.output >calls &&
 		test_line_count = 1 calls &&
@@ -681,8 +685,9 @@
 		GIT_TRACE2_PERF="$(pwd)/trace.output" &&
 		export GIT_TRACE2_PERF &&
 
-		test-tool fast-rebase --onto HEAD upstream~1 topic &&
-		#git cherry-pick upstream..topic &&
+		git replay --onto HEAD upstream~1..topic >out &&
+		git update-ref --stdin <out &&
+		git checkout topic &&
 
 		grep region_enter.*diffcore_rename trace.output >calls &&
 		test_line_count = 2 calls &&
diff --git a/t/t7004-tag.sh b/t/t7004-tag.sh
index e689db4..b41a47e 100755
--- a/t/t7004-tag.sh
+++ b/t/t7004-tag.sh
@@ -1862,6 +1862,51 @@
 	test_cmp expect actual
 '
 
+test_expect_success '--no-sort cancels config sort keys' '
+	test_config tag.sort "-refname" &&
+
+	# objecttype is identical for all of them, so sort falls back on
+	# default (ascending refname)
+	git tag -l \
+		--no-sort \
+		--sort="objecttype" \
+		"foo*" >actual &&
+	cat >expect <<-\EOF &&
+	foo1.10
+	foo1.3
+	foo1.6
+	EOF
+	test_cmp expect actual
+'
+
+test_expect_success '--no-sort cancels command line sort keys' '
+	# objecttype is identical for all of them, so sort falls back on
+	# default (ascending refname)
+	git tag -l \
+		--sort="-refname" \
+		--no-sort \
+		--sort="objecttype" \
+		"foo*" >actual &&
+	cat >expect <<-\EOF &&
+	foo1.10
+	foo1.3
+	foo1.6
+	EOF
+	test_cmp expect actual
+'
+
+test_expect_success '--no-sort without subsequent --sort prints expected tags' '
+	# Sort the results with `sort` for a consistent comparison against
+	# expected
+	git tag -l --no-sort "foo*" | sort >actual &&
+	cat >expect <<-\EOF &&
+	foo1.10
+	foo1.3
+	foo1.6
+	EOF
+	test_cmp expect actual
+'
+
 test_expect_success 'invalid sort parameter on command line' '
 	test_must_fail git tag -l --sort=notvalid "foo*" >actual
 '
diff --git a/t/t7300-clean.sh b/t/t7300-clean.sh
index 1a310a4..611b3dd 100755
--- a/t/t7300-clean.sh
+++ b/t/t7300-clean.sh
@@ -517,8 +517,12 @@
 	git init empty_repo &&
 	mkdir to_clean &&
 	>to_clean/should_clean.this &&
+	# Note that we put the expect file in the .git directory so that it
+	# does not get cleaned.
+	find empty_repo | sort >.git/expect &&
 	git clean -f -d &&
-	test_path_is_file empty_repo/.git/HEAD &&
+	find empty_repo | sort >actual &&
+	test_cmp .git/expect actual &&
 	test_path_is_missing to_clean
 '
 
@@ -559,10 +563,10 @@
 		mkdir -p bar/baz &&
 		test_commit msg bar/baz/hello.world
 	) &&
+	find repo | sort >expect &&
 	git clean -f -d repo/bar/baz &&
-	test_path_is_file repo/.git/HEAD &&
-	test_path_is_dir repo/bar/ &&
-	test_path_is_file repo/bar/baz/hello.world
+	find repo | sort >actual &&
+	test_cmp expect actual
 '
 
 test_expect_success 'giving path to nested .git will not remove it' '
@@ -573,10 +577,10 @@
 		git init &&
 		test_commit msg hello.world
 	) &&
+	find repo | sort >expect &&
 	git clean -f -d repo/.git &&
-	test_path_is_file repo/.git/HEAD &&
-	test_path_is_dir repo/.git/refs &&
-	test_path_is_dir repo/.git/objects &&
+	find repo | sort >actual &&
+	test_cmp expect actual &&
 	test_path_is_dir untracked/
 '
 
@@ -588,9 +592,10 @@
 		git init &&
 		test_commit msg hello.world
 	) &&
+	find repo | sort >expect &&
 	git clean -f -d repo/.git/ &&
-	test_path_is_dir repo/.git &&
-	test_path_is_file repo/.git/HEAD &&
+	find repo | sort >actual &&
+	test_cmp expect actual &&
 	test_path_is_dir untracked/
 '
 
diff --git a/t/t7450-bad-git-dotfiles.sh b/t/t7450-bad-git-dotfiles.sh
index 35a31ac..46d4fb0 100755
--- a/t/t7450-bad-git-dotfiles.sh
+++ b/t/t7450-bad-git-dotfiles.sh
@@ -45,6 +45,32 @@
 	test_cmp expect actual
 '
 
+test_expect_success 'check urls' '
+	cat >expect <<-\EOF &&
+	./bar/baz/foo.git
+	https://example.com/foo.git
+	http://example.com:80/deeper/foo.git
+	EOF
+
+	test-tool submodule check-url >actual <<-\EOF &&
+	./bar/baz/foo.git
+	https://example.com/foo.git
+	http://example.com:80/deeper/foo.git
+	-a./foo
+	../../..//test/foo.git
+	../../../../../:localhost:8080/foo.git
+	..\../.\../:example.com/foo.git
+	./%0ahost=example.com/foo.git
+	https://one.example.com/evil?%0ahost=two.example.com
+	https:///example.com/foo.git
+	http://example.com:test/foo.git
+	https::example.com/foo.git
+	http:::example.com/foo.git
+	EOF
+
+	test_cmp expect actual
+'
+
 test_expect_success 'create innocent subrepo' '
 	git init innocent &&
 	git -C innocent commit --allow-empty -m foo
diff --git a/t/t7501-commit-basic-functionality.sh b/t/t7501-commit-basic-functionality.sh
index 3d8500a..bced44a 100755
--- a/t/t7501-commit-basic-functionality.sh
+++ b/t/t7501-commit-basic-functionality.sh
@@ -3,8 +3,7 @@
 # Copyright (c) 2007 Kristian Høgsberg <krh@redhat.com>
 #
 
-# FIXME: Test the various index usages, -i and -o, test reflog,
-# signoff
+# FIXME: Test the various index usages, test reflog
 
 test_description='git commit'
 GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
@@ -92,6 +91,34 @@
 	test_must_fail git commit -m initial --long
 '
 
+test_expect_success 'fail to commit untracked file (even with --include/--only)' '
+	echo content >baz &&
+	error="error: pathspec .baz. did not match any file(s) known to git" &&
+
+	test_must_fail git commit -m "baz" baz 2>err &&
+	test_grep -e "$error" err &&
+
+	test_must_fail git commit --only -m "baz" baz 2>err &&
+	test_grep -e "$error" err &&
+
+	# TODO: as for --include, the below command will fail because
+	# nothing is staged. If something was staged, it would not fail
+	# even though the provided pathspec does not match any tracked
+	# path. (However, the untracked paths that match the pathspec are
+	# not committed and only the staged changes get committed.)
+	# In either cases, no error is returned to stderr like in (--only
+	# and without --only/--include) cases. In a similar manner,
+	# "git add -u baz" also does not error out.
+	#
+	# Therefore, the below test is just to document the current behavior
+	# and is not an endorsement to the current behavior, and we may
+	# want to fix this. And when that happens, this test should be
+	# updated accordingly.
+
+	test_must_fail git commit --include -m "baz" baz 2>err &&
+	test_must_be_empty err
+'
+
 test_expect_success 'setup: non-initial commit' '
 	echo bongo bongo bongo >file &&
 	git commit -m next -a
@@ -117,6 +144,51 @@
 	git commit -m next -a --long
 '
 
+for opt in "" "-o" "--only"
+do
+	test_expect_success 'exclude additional staged changes when given pathspec' '
+		echo content >>file &&
+		echo content >>baz &&
+		git add baz &&
+		git commit $opt -m "file" file &&
+
+		git diff --name-only >actual &&
+		test_must_be_empty actual &&
+
+		test_write_lines baz >expect &&
+		git diff --name-only --cached >actual &&
+		test_cmp expect actual &&
+
+		test_write_lines file >expect &&
+		git diff --name-only HEAD^ HEAD >actual &&
+		test_cmp expect actual
+	'
+done
+
+test_expect_success '-i/--include includes staged changes' '
+	echo content >>file &&
+	echo content >>baz &&
+	git add file &&
+
+	# baz is in the index, therefore, it will be committed
+	git commit --include -m "file and baz" baz  &&
+
+	git diff --name-only HEAD >remaining &&
+	test_must_be_empty remaining &&
+
+	test_write_lines baz file >expect &&
+	git diff --name-only HEAD^ HEAD >actual &&
+	test_cmp expect actual
+'
+
+test_expect_success '--include and --only do not mix' '
+	test_when_finished "git reset --hard" &&
+	echo content >>file &&
+	echo content >>baz &&
+	test_must_fail git commit --include --only -m "file baz" file baz 2>actual &&
+	test_grep -e "fatal: options .-i/--include. and .-o/--only. cannot be used together" actual
+'
+
 test_expect_success 'commit message from non-existing file' '
 	echo more bongo: bongo bongo bongo bongo >file &&
 	test_must_fail git commit -F gah -a
@@ -389,6 +461,28 @@
 
 '
 
+test_expect_success 'amend commit to add signoff' '
+
+	test_commit "msg" file content &&
+	git commit --amend --signoff &&
+	test_commit_message HEAD <<-EOF
+	msg
+
+	Signed-off-by: $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL>
+	EOF
+'
+
+test_expect_success 'amend does not add signoff if it already exists' '
+
+	test_commit --signoff "tenor" file newcontent &&
+	git commit --amend --signoff &&
+	test_commit_message HEAD <<-EOF
+	tenor
+
+	Signed-off-by: $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL>
+	EOF
+'
+
 test_expect_success 'commit mentions forced date in output' '
 	git commit --amend --date=2010-01-02T03:04:05 >output &&
 	grep "Date: *Sat Jan 2 03:04:05 2010" output
diff --git a/t/t7527-builtin-fsmonitor.sh b/t/t7527-builtin-fsmonitor.sh
index 7850315..363f9dc 100755
--- a/t/t7527-builtin-fsmonitor.sh
+++ b/t/t7527-builtin-fsmonitor.sh
@@ -978,7 +978,7 @@
 	mkdir test_unicode/nfd &&
 	mkdir test_unicode/nfd/d_${utf8_nfd} &&
 
-	git -C test_unicode fsmonitor--daemon stop &&
+	test-tool -C test_unicode fsmonitor-client query --token 0 &&
 
 	if test_have_prereq UNICODE_NFC_PRESERVED
 	then
diff --git a/t/t7900-maintenance.sh b/t/t7900-maintenance.sh
index 935df6a1..0943dfa 100755
--- a/t/t7900-maintenance.sh
+++ b/t/t7900-maintenance.sh
@@ -67,6 +67,51 @@
 	test_subcommand ! git maintenance run --auto --quiet  <false
 '
 
+test_expect_success 'register uses XDG_CONFIG_HOME config if it exists' '
+	test_when_finished rm -r .config/git/config &&
+	(
+		XDG_CONFIG_HOME=.config &&
+		export XDG_CONFIG_HOME &&
+		mkdir -p $XDG_CONFIG_HOME/git &&
+		>$XDG_CONFIG_HOME/git/config &&
+		git maintenance register &&
+		git config --file=$XDG_CONFIG_HOME/git/config --get maintenance.repo >actual &&
+		pwd >expect &&
+		test_cmp expect actual
+	)
+'
+
+test_expect_success 'register does not need XDG_CONFIG_HOME config to exist' '
+	test_when_finished git maintenance unregister &&
+	test_path_is_missing $XDG_CONFIG_HOME/git/config &&
+	git maintenance register &&
+	git config --global --get maintenance.repo >actual &&
+	pwd >expect &&
+	test_cmp expect actual
+'
+
+test_expect_success 'unregister uses XDG_CONFIG_HOME config if it exists' '
+	test_when_finished rm -r .config/git/config &&
+	(
+		XDG_CONFIG_HOME=.config &&
+		export XDG_CONFIG_HOME &&
+		mkdir -p $XDG_CONFIG_HOME/git &&
+		>$XDG_CONFIG_HOME/git/config &&
+		git maintenance register &&
+		git maintenance unregister &&
+		test_must_fail git config --file=$XDG_CONFIG_HOME/git/config --get maintenance.repo >actual &&
+		test_must_be_empty actual
+	)
+'
+
+test_expect_success 'unregister does not need XDG_CONFIG_HOME config to exist' '
+	test_path_is_missing $XDG_CONFIG_HOME/git/config &&
+	git maintenance register &&
+	git maintenance unregister &&
+	test_must_fail git config --global --get maintenance.repo >actual &&
+	test_must_be_empty actual
+'
+
 test_expect_success 'maintenance.<task>.enabled' '
 	git config maintenance.gc.enabled false &&
 	git config maintenance.commit-graph.enabled true &&
@@ -157,7 +202,8 @@
 	fetchargs="--prefetch --prune --no-tags --no-write-fetch-head --recurse-submodules=no --quiet" &&
 	test_subcommand git fetch remote1 $fetchargs <run-prefetch.txt &&
 	test_subcommand git fetch remote2 $fetchargs <run-prefetch.txt &&
-	test_path_is_missing .git/refs/remotes &&
+	git for-each-ref refs/remotes >actual &&
+	test_must_be_empty actual &&
 	git log prefetch/remotes/remote1/one &&
 	git log prefetch/remotes/remote2/two &&
 	git fetch --all &&
diff --git a/t/t9133-git-svn-nested-git-repo.sh b/t/t9133-git-svn-nested-git-repo.sh
index d8d5362..8ca2467 100755
--- a/t/t9133-git-svn-nested-git-repo.sh
+++ b/t/t9133-git-svn-nested-git-repo.sh
@@ -11,7 +11,7 @@
 	(
 		cd s &&
 		git init &&
-		test -f .git/HEAD &&
+		git symbolic-ref HEAD &&
 		> .git/a &&
 		echo a > a &&
 		svn_cmd add .git a &&
diff --git a/t/t9164-git-svn-dcommit-concurrent.sh b/t/t9164-git-svn-dcommit-concurrent.sh
index c8e6c07..d1dec89 100755
--- a/t/t9164-git-svn-dcommit-concurrent.sh
+++ b/t/t9164-git-svn-dcommit-concurrent.sh
@@ -46,6 +46,14 @@
 			"passed to setup_hook" >&2 ; return 1; }
 	echo "cnt=$skip_revs" > "$hook_type-counter"
 	rm -f "$rawsvnrepo/hooks/"*-commit # drop previous hooks
+
+	# Subversion hooks run with an empty environment by default. We thus
+	# need to propagate PATH so that we can find executables.
+	cat >"$rawsvnrepo/conf/hooks-env" <<-EOF
+	[default]
+	PATH = ${PATH}
+	EOF
+
 	hook="$rawsvnrepo/hooks/$hook_type"
 	cat > "$hook" <<- 'EOF1'
 		#!/bin/sh
@@ -63,7 +71,6 @@
 	if [ "$hook_type" = "pre-commit" ]; then
 		echo "echo 'commit disallowed' >&2; exit 1" >>"$hook"
 	else
-		echo "PATH=\"$PATH\"; export PATH" >>"$hook"
 		echo "svnconf=\"$svnconf\"" >>"$hook"
 		cat >>"$hook" <<- 'EOF2'
 			cd work-auto-commits.svn
diff --git a/t/t9500-gitweb-standalone-no-errors.sh b/t/t9500-gitweb-standalone-no-errors.sh
index 0333065..7679780 100755
--- a/t/t9500-gitweb-standalone-no-errors.sh
+++ b/t/t9500-gitweb-standalone-no-errors.sh
@@ -627,6 +627,7 @@
 test_expect_success 'setup' '
 	version=$(git config core.repositoryformatversion) &&
 	algo=$(test_might_fail git config extensions.objectformat) &&
+	refstorage=$(test_might_fail git config extensions.refstorage) &&
 	cat >.git/config <<-\EOF &&
 	# testing noval and alternate separator
 	[gitweb]
@@ -637,6 +638,10 @@
 	if test -n "$algo"
 	then
 		git config extensions.objectformat "$algo"
+	fi &&
+	if test -n "$refstorage"
+	then
+		git config extensions.refstorage "$refstorage"
 	fi
 '
 
diff --git a/t/t9902-completion.sh b/t/t9902-completion.sh
index a7c3b4e..b16c284 100755
--- a/t/t9902-completion.sh
+++ b/t/t9902-completion.sh
@@ -5,6 +5,17 @@
 
 test_description='test bash completion'
 
+# The Bash completion scripts must not print anything to either stdout or
+# stderr, which we try to verify. When tracing is enabled without support for
+# BASH_XTRACEFD this assertion will fail, so we have to mark the test as
+# untraceable with such ancient Bash versions.
+test_untraceable=UnfortunatelyYes
+
+# Override environment and always use master for the default initial branch
+# name for these tests, so that rev completion candidates are as expected.
+GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=master
+export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
+
 . ./lib-bash.sh
 
 complete ()
@@ -87,9 +98,11 @@
 	else
 		sed -e 's/Z$//' |sort >expected
 	fi &&
-	run_completion "$1" &&
+	run_completion "$1" >"$TRASH_DIRECTORY"/bash-completion-output 2>&1 &&
 	sort out >out_sorted &&
-	test_cmp expected out_sorted
+	test_cmp expected out_sorted &&
+	test_must_be_empty "$TRASH_DIRECTORY"/bash-completion-output &&
+	rm "$TRASH_DIRECTORY"/bash-completion-output
 }
 
 # Test __gitcomp.
@@ -1259,6 +1272,142 @@
 	EOF
 '
 
+test_expect_success 'git bisect - when not bisecting, complete only replay and start subcommands' '
+	test_completion "git bisect " <<-\EOF
+	replay Z
+	start Z
+	EOF
+'
+
+test_expect_success 'git bisect - complete options to start subcommand' '
+	test_completion "git bisect start --" <<-\EOF
+	--term-new Z
+	--term-bad Z
+	--term-old Z
+	--term-good Z
+	--no-checkout Z
+	--first-parent Z
+	EOF
+'
+
+test_expect_success 'setup for git-bisect tests requiring a repo' '
+	git init git-bisect &&
+	(
+		cd git-bisect &&
+		echo "initial contents" >file &&
+		git add file &&
+		git commit -am "Initial commit" &&
+		git tag initial &&
+		echo "new line" >>file &&
+		git commit -am "First change" &&
+		echo "another new line" >>file &&
+		git commit -am "Second change" &&
+		git tag final
+	)
+'
+
+test_expect_success 'git bisect - start subcommand arguments before double-dash are completed as revs' '
+	(
+		cd git-bisect &&
+		test_completion "git bisect start " <<-\EOF
+		HEAD Z
+		final Z
+		initial Z
+		master Z
+		EOF
+	)
+'
+
+# Note that these arguments are <pathspec>s, which in practice the fallback
+# completion (not the git completion) later ends up completing as paths.
+test_expect_success 'git bisect - start subcommand arguments after double-dash are not completed' '
+	(
+		cd git-bisect &&
+		test_completion "git bisect start final initial -- " ""
+	)
+'
+
+test_expect_success 'setup for git-bisect tests requiring ongoing bisection' '
+	(
+		cd git-bisect &&
+		git bisect start --term-new=custom_new --term-old=custom_old final initial
+	)
+'
+
+test_expect_success 'git-bisect - when bisecting all subcommands are candidates' '
+	(
+		cd git-bisect &&
+		test_completion "git bisect " <<-\EOF
+		start Z
+		bad Z
+		custom_new Z
+		custom_old Z
+		new Z
+		good Z
+		old Z
+		terms Z
+		skip Z
+		reset Z
+		visualize Z
+		replay Z
+		log Z
+		run Z
+		help Z
+		EOF
+	)
+'
+
+test_expect_success 'git-bisect - options to terms subcommand are candidates' '
+	(
+		cd git-bisect &&
+		test_completion "git bisect terms --" <<-\EOF
+		--term-bad Z
+		--term-good Z
+		--term-new Z
+		--term-old Z
+		EOF
+	)
+'
+
+test_expect_success 'git-bisect - git-log options to visualize subcommand are candidates' '
+	(
+		cd git-bisect &&
+		# The completion used for git-log and here does not complete
+		# every git-log option, so rather than hope to stay in sync
+		# with exactly what it does we will just spot-test here.
+		test_completion "git bisect visualize --sta" <<-\EOF &&
+		--stat Z
+		EOF
+		test_completion "git bisect visualize --summar" <<-\EOF
+		--summary Z
+		EOF
+	)
+'
+
+test_expect_success 'git-bisect - view subcommand is not a candidate' '
+	(
+		cd git-bisect &&
+		test_completion "git bisect vi" <<-\EOF
+		visualize Z
+		EOF
+	)
+'
+
+test_expect_success 'git-bisect - existing view subcommand is recognized and enables completion of git-log options' '
+	(
+		cd git-bisect &&
+		# The completion used for git-log and here does not complete
+		# every git-log option, so rather than hope to stay in sync
+		# with exactly what it does we will just spot-test here.
+		test_completion "git bisect view --sta" <<-\EOF &&
+		--stat Z
+		EOF
+		test_completion "git bisect view --summar" <<-\EOF
+		--summary Z
+		EOF
+	)
+'
+
 test_expect_success 'git checkout - completes refs and unique remote branches for DWIM' '
 	test_completion "git checkout " <<-\EOF
 	HEAD Z
@@ -1571,7 +1720,7 @@
 	)
 '
 
-test_expect_success 'non-cone mode sparse-checkout uses bash completion' '
+test_expect_success 'non-cone mode sparse-checkout gives rooted paths' '
 	# reset sparse-checkout repo to non-cone mode
 	git -C sparse-checkout sparse-checkout disable &&
 	git -C sparse-checkout sparse-checkout set --no-cone &&
@@ -1581,7 +1730,12 @@
 		# expected to be empty since we have not configured
 		# custom completion for non-cone mode
 		test_completion "git sparse-checkout set f" <<-\EOF
-
+		/folder1/0/1/t.txt Z
+		/folder1/expected Z
+		/folder1/out Z
+		/folder1/out_sorted Z
+		/folder2/0/t.txt Z
+		/folder3/t.txt Z
 		EOF
 	)
 '
@@ -1920,6 +2074,14 @@
 	EOF
 '
 
+test_expect_success 'git restore completes modified files' '
+	test_commit A a.file &&
+	echo B >a.file &&
+	test_completion "git restore a." <<-\EOF
+	a.file
+	EOF
+'
+
 test_expect_success 'teardown after ref completion' '
 	git branch -d matching-branch &&
 	git tag -d matching-tag &&
@@ -2562,6 +2724,35 @@
 	EOF
 '
 
+test_expect_success 'setup for git config submodule tests' '
+	test_create_repo sub &&
+	test_commit -C sub initial &&
+	git submodule add ./sub
+'
+
+test_expect_success 'git config - variable name - submodule and __git_compute_first_level_config_vars_for_section' '
+	test_completion "git config submodule." <<-\EOF
+	submodule.active Z
+	submodule.alternateErrorStrategy Z
+	submodule.alternateLocation Z
+	submodule.fetchJobs Z
+	submodule.propagateBranches Z
+	submodule.recurse Z
+	submodule.sub.Z
+	EOF
+'
+
+test_expect_success 'git config - variable name - __git_compute_second_level_config_vars_for_section' '
+	test_completion "git config submodule.sub." <<-\EOF
+	submodule.sub.url Z
+	submodule.sub.update Z
+	submodule.sub.branch Z
+	submodule.sub.fetchRecurseSubmodules Z
+	submodule.sub.ignore Z
+	submodule.sub.active Z
+	EOF
+'
+
 test_expect_success 'git config - value' '
 	test_completion "git config color.pager " <<-\EOF
 	false Z
@@ -2715,4 +2906,31 @@
 	test_must_fail __git_complete ga missing
 '
 
+test_expect_success '__git_pseudoref_exists' '
+	test_when_finished "rm -rf repo" &&
+	git init repo &&
+	(
+		cd repo &&
+		sane_unset __git_repo_path &&
+
+		# HEAD should exist, even if it points to an unborn branch.
+		__git_pseudoref_exists HEAD >output 2>&1 &&
+		test_must_be_empty output &&
+
+		# HEAD points to an existing branch, so it should exist.
+		test_commit A &&
+		__git_pseudoref_exists HEAD >output 2>&1 &&
+		test_must_be_empty output &&
+
+		# CHERRY_PICK_HEAD does not exist, so the existence check should fail.
+		! __git_pseudoref_exists CHERRY_PICK_HEAD >output 2>&1 &&
+		test_must_be_empty output &&
+
+		# CHERRY_PICK_HEAD points to a commit, so it should exist.
+		git update-ref CHERRY_PICK_HEAD A &&
+		__git_pseudoref_exists CHERRY_PICK_HEAD >output 2>&1 &&
+		test_must_be_empty output
+	)
+'
+
 test_done
diff --git a/t/test-lib-functions.sh b/t/test-lib-functions.sh
index 5eb5791..b5eaf7f 100644
--- a/t/test-lib-functions.sh
+++ b/t/test-lib-functions.sh
@@ -1659,6 +1659,11 @@
 	test_hash_algo="${GIT_TEST_DEFAULT_HASH:-sha1}"
 }
 
+# Detect the hash algorithm in use.
+test_detect_ref_format () {
+	echo "${GIT_TEST_DEFAULT_REF_FORMAT:-files}"
+}
+
 # Load common hash metadata and common placeholder object IDs for use with
 # test_oid.
 test_oid_init () {
@@ -1874,6 +1879,20 @@
 	return 0
 }
 
+# Check that the given data fragment was included as part of the
+# trace2-format trace on stdin.
+#
+#	test_trace2_data <category> <key> <value>
+#
+# For example, to look for trace2_data_intmax("pack-objects", repo,
+# "reused", N) in an invocation of "git pack-objects", run:
+#
+#	GIT_TRACE2_EVENT="$(pwd)/trace.txt" git pack-objects ... &&
+#	test_trace2_data pack-objects reused N <trace2.txt
+test_trace2_data () {
+	grep -e '"category":"'"$1"'","key":"'"$2"'","value":"'"$3"'"'
+}
+
 # Given a GIT_TRACE2_EVENT log over stdin, writes to stdout a list of URLs
 # sent to git-remote-https child processes.
 test_remote_https_urls() {
diff --git a/t/test-lib-github-workflow-markup.sh b/t/test-lib-github-workflow-markup.sh
index 970c653..33405c9 100644
--- a/t/test-lib-github-workflow-markup.sh
+++ b/t/test-lib-github-workflow-markup.sh
@@ -42,8 +42,8 @@
 	fixed)
 		echo >>$github_markup_output "::notice::fixed: $this_test.$test_count $1"
 		;;
-	ok)
-		# Exit without printing the "ok" tests
+	ok|broken)
+		# Exit without printing the "ok" or ""broken" tests
 		return
 		;;
 	esac
diff --git a/t/test-lib.sh b/t/test-lib.sh
index 876b995..042f557 100644
--- a/t/test-lib.sh
+++ b/t/test-lib.sh
@@ -542,6 +542,8 @@
 
 GIT_DEFAULT_HASH="${GIT_TEST_DEFAULT_HASH:-sha1}"
 export GIT_DEFAULT_HASH
+GIT_DEFAULT_REF_FORMAT="${GIT_TEST_DEFAULT_REF_FORMAT:-files}"
+export GIT_DEFAULT_REF_FORMAT
 GIT_TEST_MERGE_ALGORITHM="${GIT_TEST_MERGE_ALGORITHM:-ort}"
 export GIT_TEST_MERGE_ALGORITHM
 
@@ -1295,6 +1297,11 @@
 		EOF
 	fi
 
+	if test -z "$passes_sanitize_leak" && test_bool_env TEST_PASSES_SANITIZE_LEAK false
+	then
+		BAIL_OUT "Please, set TEST_PASSES_SANITIZE_LEAK before sourcing test-lib.sh"
+	fi
+
 	if test "$test_fixed" != 0
 	then
 		say_color error "# $test_fixed known breakage(s) vanished; please update test(s)"
@@ -1745,7 +1752,14 @@
 	;;
 esac
 
-test_set_prereq REFFILES
+case "$GIT_DEFAULT_REF_FORMAT" in
+files)
+	test_set_prereq REFFILES;;
+*)
+	echo 2>&1 "error: unknown ref format $GIT_DEFAULT_REF_FORMAT"
+	exit 1
+	;;
+esac
 
 ( COLUMNS=1 && test $COLUMNS = 1 ) && test_set_prereq COLUMNS_CAN_BE_1
 test -z "$NO_CURL" && test_set_prereq LIBCURL
@@ -1936,6 +1950,10 @@
 	esac
 '
 
+test_lazy_prereq DEFAULT_REPO_FORMAT '
+	test_have_prereq SHA1,REFFILES
+'
+
 # Ensure that no test accidentally triggers a Git command
 # that runs the actual maintenance scheduler, affecting a user's
 # system permanently.
diff --git a/t/unit-tests/.gitignore b/t/unit-tests/.gitignore
new file mode 100644
index 0000000..5e56e04
--- /dev/null
+++ b/t/unit-tests/.gitignore
@@ -0,0 +1 @@
+/bin
diff --git a/t/unit-tests/t-basic.c b/t/unit-tests/t-basic.c
new file mode 100644
index 0000000..fda1ae5
--- /dev/null
+++ b/t/unit-tests/t-basic.c
@@ -0,0 +1,95 @@
+#include "test-lib.h"
+
+/*
+ * The purpose of this "unit test" is to verify a few invariants of the unit
+ * test framework itself, as well as to provide examples of output from actually
+ * failing tests. As such, it is intended that this test fails, and thus it
+ * should not be run as part of `make unit-tests`. Instead, we verify it behaves
+ * as expected in the integration test t0080-unit-test-output.sh
+ */
+
+/* Used to store the return value of check_int(). */
+static int check_res;
+
+/* Used to store the return value of TEST(). */
+static int test_res;
+
+static void t_res(int expect)
+{
+	check_int(check_res, ==, expect);
+	check_int(test_res, ==, expect);
+}
+
+static void t_todo(int x)
+{
+	check_res = TEST_TODO(check(x));
+}
+
+static void t_skip(void)
+{
+	check(0);
+	test_skip("missing prerequisite");
+	check(1);
+}
+
+static int do_skip(void)
+{
+	test_skip("missing prerequisite");
+	return 1;
+}
+
+static void t_skip_todo(void)
+{
+	check_res = TEST_TODO(do_skip());
+}
+
+static void t_todo_after_fail(void)
+{
+	check(0);
+	TEST_TODO(check(0));
+}
+
+static void t_fail_after_todo(void)
+{
+	check(1);
+	TEST_TODO(check(0));
+	check(0);
+}
+
+static void t_messages(void)
+{
+	check_str("\thello\\", "there\"\n");
+	check_str("NULL", NULL);
+	check_char('a', ==, '\n');
+	check_char('\\', ==, '\'');
+}
+
+static void t_empty(void)
+{
+	; /* empty */
+}
+
+int cmd_main(int argc, const char **argv)
+{
+	test_res = TEST(check_res = check_int(1, ==, 1), "passing test");
+	TEST(t_res(1), "passing test and assertion return 1");
+	test_res = TEST(check_res = check_int(1, ==, 2), "failing test");
+	TEST(t_res(0), "failing test and assertion return 0");
+	test_res = TEST(t_todo(0), "passing TEST_TODO()");
+	TEST(t_res(1), "passing TEST_TODO() returns 1");
+	test_res = TEST(t_todo(1), "failing TEST_TODO()");
+	TEST(t_res(0), "failing TEST_TODO() returns 0");
+	test_res = TEST(t_skip(), "test_skip()");
+	TEST(check_int(test_res, ==, 1), "skipped test returns 1");
+	test_res = TEST(t_skip_todo(), "test_skip() inside TEST_TODO()");
+	TEST(t_res(1), "test_skip() inside TEST_TODO() returns 1");
+	test_res = TEST(t_todo_after_fail(), "TEST_TODO() after failing check");
+	TEST(check_int(test_res, ==, 0), "TEST_TODO() after failing check returns 0");
+	test_res = TEST(t_fail_after_todo(), "failing check after TEST_TODO()");
+	TEST(check_int(test_res, ==, 0), "failing check after TEST_TODO() returns 0");
+	TEST(t_messages(), "messages from failing string and char comparison");
+	test_res = TEST(t_empty(), "test with no checks");
+	TEST(check_int(test_res, ==, 0), "test with no checks returns 0");
+
+	return test_done();
+}
diff --git a/t/unit-tests/t-ctype.c b/t/unit-tests/t-ctype.c
new file mode 100644
index 0000000..f315489
--- /dev/null
+++ b/t/unit-tests/t-ctype.c
@@ -0,0 +1,80 @@
+#include "test-lib.h"
+
+static int is_in(const char *s, int ch)
+{
+	/*
+	 * We can't find NUL using strchr. Accept it as the first
+	 * character in the spec -- there are no empty classes.
+	 */
+	if (ch == '\0')
+		return ch == *s;
+	if (*s == '\0')
+		s++;
+	return !!strchr(s, ch);
+}
+
+/* Macro to test a character type */
+#define TEST_CTYPE_FUNC(func, string) \
+static void test_ctype_##func(void) { \
+	for (int i = 0; i < 256; i++) { \
+		if (!check_int(func(i), ==, is_in(string, i))) \
+			test_msg("       i: 0x%02x", i); \
+	} \
+	if (!check(!func(EOF))) \
+			test_msg("      i: 0x%02x (EOF)", EOF); \
+}
+
+#define TEST_CHAR_CLASS(class) TEST(test_ctype_##class(), #class " works")
+
+#define DIGIT "0123456789"
+#define LOWER "abcdefghijklmnopqrstuvwxyz"
+#define UPPER "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
+#define PUNCT "!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~"
+#define ASCII \
+	"\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f" \
+	"\x10\x11\x12\x13\x14\x15\x16\x17\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f" \
+	"\x20\x21\x22\x23\x24\x25\x26\x27\x28\x29\x2a\x2b\x2c\x2d\x2e\x2f" \
+	"\x30\x31\x32\x33\x34\x35\x36\x37\x38\x39\x3a\x3b\x3c\x3d\x3e\x3f" \
+	"\x40\x41\x42\x43\x44\x45\x46\x47\x48\x49\x4a\x4b\x4c\x4d\x4e\x4f" \
+	"\x50\x51\x52\x53\x54\x55\x56\x57\x58\x59\x5a\x5b\x5c\x5d\x5e\x5f" \
+	"\x60\x61\x62\x63\x64\x65\x66\x67\x68\x69\x6a\x6b\x6c\x6d\x6e\x6f" \
+	"\x70\x71\x72\x73\x74\x75\x76\x77\x78\x79\x7a\x7b\x7c\x7d\x7e\x7f"
+#define CNTRL \
+	"\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f" \
+	"\x10\x11\x12\x13\x14\x15\x16\x17\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f" \
+	"\x7f"
+
+TEST_CTYPE_FUNC(isdigit, DIGIT)
+TEST_CTYPE_FUNC(isspace, " \n\r\t")
+TEST_CTYPE_FUNC(isalpha, LOWER UPPER)
+TEST_CTYPE_FUNC(isalnum, LOWER UPPER DIGIT)
+TEST_CTYPE_FUNC(is_glob_special, "*?[\\")
+TEST_CTYPE_FUNC(is_regex_special, "$()*+.?[\\^{|")
+TEST_CTYPE_FUNC(is_pathspec_magic, "!\"#%&',-/:;<=>@_`~")
+TEST_CTYPE_FUNC(isascii, ASCII)
+TEST_CTYPE_FUNC(islower, LOWER)
+TEST_CTYPE_FUNC(isupper, UPPER)
+TEST_CTYPE_FUNC(iscntrl, CNTRL)
+TEST_CTYPE_FUNC(ispunct, PUNCT)
+TEST_CTYPE_FUNC(isxdigit, DIGIT "abcdefABCDEF")
+TEST_CTYPE_FUNC(isprint, LOWER UPPER DIGIT PUNCT " ")
+
+int cmd_main(int argc, const char **argv) {
+	/* Run all character type tests */
+	TEST_CHAR_CLASS(isspace);
+	TEST_CHAR_CLASS(isdigit);
+	TEST_CHAR_CLASS(isalpha);
+	TEST_CHAR_CLASS(isalnum);
+	TEST_CHAR_CLASS(is_glob_special);
+	TEST_CHAR_CLASS(is_regex_special);
+	TEST_CHAR_CLASS(is_pathspec_magic);
+	TEST_CHAR_CLASS(isascii);
+	TEST_CHAR_CLASS(islower);
+	TEST_CHAR_CLASS(isupper);
+	TEST_CHAR_CLASS(iscntrl);
+	TEST_CHAR_CLASS(ispunct);
+	TEST_CHAR_CLASS(isxdigit);
+	TEST_CHAR_CLASS(isprint);
+
+	return test_done();
+}
diff --git a/t/unit-tests/t-mem-pool.c b/t/unit-tests/t-mem-pool.c
new file mode 100644
index 0000000..a0d57df
--- /dev/null
+++ b/t/unit-tests/t-mem-pool.c
@@ -0,0 +1,31 @@
+#include "test-lib.h"
+#include "mem-pool.h"
+
+static void setup_static(void (*f)(struct mem_pool *), size_t block_alloc)
+{
+	struct mem_pool pool = { .block_alloc = block_alloc };
+	f(&pool);
+	mem_pool_discard(&pool, 0);
+}
+
+static void t_calloc_100(struct mem_pool *pool)
+{
+	size_t size = 100;
+	char *buffer = mem_pool_calloc(pool, 1, size);
+	for (size_t i = 0; i < size; i++)
+		check_int(buffer[i], ==, 0);
+	if (!check(pool->mp_block != NULL))
+		return;
+	check(pool->mp_block->next_free != NULL);
+	check(pool->mp_block->end != NULL);
+}
+
+int cmd_main(int argc, const char **argv)
+{
+	TEST(setup_static(t_calloc_100, 1024 * 1024),
+	     "mem_pool_calloc returns 100 zeroed bytes with big block");
+	TEST(setup_static(t_calloc_100, 1),
+	     "mem_pool_calloc returns 100 zeroed bytes with tiny block");
+
+	return test_done();
+}
diff --git a/t/unit-tests/t-prio-queue.c b/t/unit-tests/t-prio-queue.c
new file mode 100644
index 0000000..d78b002
--- /dev/null
+++ b/t/unit-tests/t-prio-queue.c
@@ -0,0 +1,98 @@
+#include "test-lib.h"
+#include "prio-queue.h"
+
+static int intcmp(const void *va, const void *vb, void *data UNUSED)
+{
+	const int *a = va, *b = vb;
+	return *a - *b;
+}
+
+
+#define MISSING  -1
+#define DUMP	 -2
+#define STACK	 -3
+#define GET	 -4
+#define REVERSE  -5
+
+static int show(int *v)
+{
+	return v ? *v : MISSING;
+}
+
+static void test_prio_queue(int *input, int *result, size_t input_size)
+{
+	struct prio_queue pq = { intcmp };
+
+	for (int i = 0, j = 0; i < input_size; i++) {
+		void *peek, *get;
+		switch(input[i]) {
+		case GET:
+			peek = prio_queue_peek(&pq);
+			get = prio_queue_get(&pq);
+			if (!check(peek == get))
+				return;
+			if(!check_int(result[j++], ==, show(get)))
+				test_msg("failed at result[] index %d", j-1);
+			break;
+		case DUMP:
+			while ((peek = prio_queue_peek(&pq))) {
+				get = prio_queue_get(&pq);
+				if (!check(peek == get))
+					return;
+				if(!check_int(result[j++], ==, show(get)))
+					test_msg("failed at result[] index %d", j-1);
+			}
+			break;
+		case STACK:
+			pq.compare = NULL;
+			break;
+		case REVERSE:
+			prio_queue_reverse(&pq);
+			break;
+		default:
+			prio_queue_put(&pq, &input[i]);
+			break;
+		}
+	}
+	clear_prio_queue(&pq);
+}
+
+#define BASIC_INPUT 2, 6, 3, 10, 9, 5, 7, 4, 5, 8, 1, DUMP
+#define BASIC_RESULT 1, 2, 3, 4, 5, 5, 6, 7, 8, 9, 10
+
+#define MIXED_PUT_GET_INPUT 6, 2, 4, GET, 5, 3, GET, GET, 1, DUMP
+#define MIXED_PUT_GET_RESULT 2, 3, 4, 1, 5, 6
+
+#define EMPTY_QUEUE_INPUT 1, 2, GET, GET, GET, 1, 2, GET, GET, GET
+#define EMPTY_QUEUE_RESULT 1, 2, MISSING, 1, 2, MISSING
+
+#define STACK_INPUT STACK, 8, 1, 5, 4, 6, 2, 3, DUMP
+#define STACK_RESULT 3, 2, 6, 4, 5, 1, 8
+
+#define REVERSE_STACK_INPUT STACK, 1, 2, 3, 4, 5, 6, REVERSE, DUMP
+#define REVERSE_STACK_RESULT 1, 2, 3, 4, 5, 6
+
+#define TEST_INPUT(INPUT, RESULT, name)			\
+  static void test_##name(void)				\
+{								\
+	int input[] = {INPUT};					\
+	int result[] = {RESULT};				\
+	test_prio_queue(input, result, ARRAY_SIZE(input));	\
+}
+
+TEST_INPUT(BASIC_INPUT, BASIC_RESULT, basic)
+TEST_INPUT(MIXED_PUT_GET_INPUT, MIXED_PUT_GET_RESULT, mixed)
+TEST_INPUT(EMPTY_QUEUE_INPUT, EMPTY_QUEUE_RESULT, empty)
+TEST_INPUT(STACK_INPUT, STACK_RESULT, stack)
+TEST_INPUT(REVERSE_STACK_INPUT, REVERSE_STACK_RESULT, reverse)
+
+int cmd_main(int argc, const char **argv)
+{
+	TEST(test_basic(), "prio-queue works for basic input");
+	TEST(test_mixed(), "prio-queue works for mixed put & get commands");
+	TEST(test_empty(), "prio-queue works when queue is empty");
+	TEST(test_stack(), "prio-queue works when used as a LIFO stack");
+	TEST(test_reverse(), "prio-queue works when LIFO stack is reversed");
+
+	return test_done();
+}
diff --git a/t/unit-tests/t-strbuf.c b/t/unit-tests/t-strbuf.c
new file mode 100644
index 0000000..de434a4
--- /dev/null
+++ b/t/unit-tests/t-strbuf.c
@@ -0,0 +1,120 @@
+#include "test-lib.h"
+#include "strbuf.h"
+
+/* wrapper that supplies tests with an empty, initialized strbuf */
+static void setup(void (*f)(struct strbuf*, void*), void *data)
+{
+	struct strbuf buf = STRBUF_INIT;
+
+	f(&buf, data);
+	strbuf_release(&buf);
+	check_uint(buf.len, ==, 0);
+	check_uint(buf.alloc, ==, 0);
+}
+
+/* wrapper that supplies tests with a populated, initialized strbuf */
+static void setup_populated(void (*f)(struct strbuf*, void*), char *init_str, void *data)
+{
+	struct strbuf buf = STRBUF_INIT;
+
+	strbuf_addstr(&buf, init_str);
+	check_uint(buf.len, ==, strlen(init_str));
+	f(&buf, data);
+	strbuf_release(&buf);
+	check_uint(buf.len, ==, 0);
+	check_uint(buf.alloc, ==, 0);
+}
+
+static int assert_sane_strbuf(struct strbuf *buf)
+{
+	/* Initialized strbufs should always have a non-NULL buffer */
+	if (!check(!!buf->buf))
+		return 0;
+	/* Buffers should always be NUL-terminated */
+	if (!check_char(buf->buf[buf->len], ==, '\0'))
+		return 0;
+	/*
+	 * Freshly-initialized strbufs may not have a dynamically allocated
+	 * buffer
+	 */
+	if (buf->len == 0 && buf->alloc == 0)
+		return 1;
+	/* alloc must be at least one byte larger than len */
+	return check_uint(buf->len, <, buf->alloc);
+}
+
+static void t_static_init(void)
+{
+	struct strbuf buf = STRBUF_INIT;
+
+	check_uint(buf.len, ==, 0);
+	check_uint(buf.alloc, ==, 0);
+	check_char(buf.buf[0], ==, '\0');
+}
+
+static void t_dynamic_init(void)
+{
+	struct strbuf buf;
+
+	strbuf_init(&buf, 1024);
+	check(assert_sane_strbuf(&buf));
+	check_uint(buf.len, ==, 0);
+	check_uint(buf.alloc, >=, 1024);
+	check_char(buf.buf[0], ==, '\0');
+	strbuf_release(&buf);
+}
+
+static void t_addch(struct strbuf *buf, void *data)
+{
+	const char *p_ch = data;
+	const char ch = *p_ch;
+	size_t orig_alloc = buf->alloc;
+	size_t orig_len = buf->len;
+
+	if (!check(assert_sane_strbuf(buf)))
+		return;
+	strbuf_addch(buf, ch);
+	if (!check(assert_sane_strbuf(buf)))
+		return;
+	if (!(check_uint(buf->len, ==, orig_len + 1) &&
+	      check_uint(buf->alloc, >=, orig_alloc)))
+		return; /* avoid de-referencing buf->buf */
+	check_char(buf->buf[buf->len - 1], ==, ch);
+	check_char(buf->buf[buf->len], ==, '\0');
+}
+
+static void t_addstr(struct strbuf *buf, void *data)
+{
+	const char *text = data;
+	size_t len = strlen(text);
+	size_t orig_alloc = buf->alloc;
+	size_t orig_len = buf->len;
+
+	if (!check(assert_sane_strbuf(buf)))
+		return;
+	strbuf_addstr(buf, text);
+	if (!check(assert_sane_strbuf(buf)))
+		return;
+	if (!(check_uint(buf->len, ==, orig_len + len) &&
+	      check_uint(buf->alloc, >=, orig_alloc) &&
+	      check_uint(buf->alloc, >, orig_len + len) &&
+	      check_char(buf->buf[orig_len + len], ==, '\0')))
+	    return;
+	check_str(buf->buf + orig_len, text);
+}
+
+int cmd_main(int argc, const char **argv)
+{
+	if (!TEST(t_static_init(), "static initialization works"))
+		test_skip_all("STRBUF_INIT is broken");
+	TEST(t_dynamic_init(), "dynamic initialization works");
+	TEST(setup(t_addch, "a"), "strbuf_addch adds char");
+	TEST(setup(t_addch, ""), "strbuf_addch adds NUL char");
+	TEST(setup_populated(t_addch, "initial value", "a"),
+	     "strbuf_addch appends to initial value");
+	TEST(setup(t_addstr, "hello there"), "strbuf_addstr adds string");
+	TEST(setup_populated(t_addstr, "initial value", "hello there"),
+	     "strbuf_addstr appends string to initial value");
+
+	return test_done();
+}
diff --git a/t/unit-tests/test-lib.c b/t/unit-tests/test-lib.c
new file mode 100644
index 0000000..66d6980
--- /dev/null
+++ b/t/unit-tests/test-lib.c
@@ -0,0 +1,407 @@
+#include "test-lib.h"
+
+enum result {
+	RESULT_NONE,
+	RESULT_FAILURE,
+	RESULT_SKIP,
+	RESULT_SUCCESS,
+	RESULT_TODO
+};
+
+static struct {
+	enum result result;
+	int count;
+	unsigned failed :1;
+	unsigned lazy_plan :1;
+	unsigned running :1;
+	unsigned skip_all :1;
+	unsigned todo :1;
+} ctx = {
+	.lazy_plan = 1,
+	.result = RESULT_NONE,
+};
+
+/*
+ * Visual C interpolates the absolute Windows path for `__FILE__`,
+ * but we want to see relative paths, as verified by t0080.
+ * There are other compilers that do the same, and are not for
+ * Windows.
+ */
+#include "dir.h"
+
+static const char *make_relative(const char *location)
+{
+	static char prefix[] = __FILE__, buf[PATH_MAX], *p;
+	static size_t prefix_len;
+	static int need_bs_to_fs = -1;
+
+	/* one-time preparation */
+	if (need_bs_to_fs < 0) {
+		size_t len = strlen(prefix);
+		char needle[] = "t\\unit-tests\\test-lib.c";
+		size_t needle_len = strlen(needle);
+
+		if (len < needle_len)
+			die("unexpected prefix '%s'", prefix);
+
+		/*
+		 * The path could be relative (t/unit-tests/test-lib.c)
+		 * or full (/home/user/git/t/unit-tests/test-lib.c).
+		 * Check the slash between "t" and "unit-tests".
+		 */
+		prefix_len = len - needle_len;
+		if (prefix[prefix_len + 1] == '/') {
+			/* Oh, we're not Windows */
+			for (size_t i = 0; i < needle_len; i++)
+				if (needle[i] == '\\')
+					needle[i] = '/';
+			need_bs_to_fs = 0;
+		} else {
+			need_bs_to_fs = 1;
+		}
+
+		/*
+		 * prefix_len == 0 if the compiler gives paths relative
+		 * to the root of the working tree.  Otherwise, we want
+		 * to see that we did find the needle[] at a directory
+		 * boundary.  Again we rely on that needle[] begins with
+		 * "t" followed by the directory separator.
+		 */
+		if (fspathcmp(needle, prefix + prefix_len) ||
+		    (prefix_len && prefix[prefix_len - 1] != needle[1]))
+			die("unexpected suffix of '%s'", prefix);
+	}
+
+	/*
+	 * Does it not start with the expected prefix?
+	 * Return it as-is without making it worse.
+	 */
+	if (prefix_len && fspathncmp(location, prefix, prefix_len))
+		return location;
+
+	/*
+	 * If we do not need to munge directory separator, we can return
+	 * the substring at the tail of the location.
+	 */
+	if (!need_bs_to_fs)
+		return location + prefix_len;
+
+	/* convert backslashes to forward slashes */
+	strlcpy(buf, location + prefix_len, sizeof(buf));
+	for (p = buf; *p; p++)
+		if (*p == '\\')
+			*p = '/';
+	return buf;
+}
+
+static void msg_with_prefix(const char *prefix, const char *format, va_list ap)
+{
+	fflush(stderr);
+	if (prefix)
+		fprintf(stdout, "%s", prefix);
+	vprintf(format, ap); /* TODO: handle newlines */
+	putc('\n', stdout);
+	fflush(stdout);
+}
+
+void test_msg(const char *format, ...)
+{
+	va_list ap;
+
+	va_start(ap, format);
+	msg_with_prefix("# ", format, ap);
+	va_end(ap);
+}
+
+void test_plan(int count)
+{
+	assert(!ctx.running);
+
+	fflush(stderr);
+	printf("1..%d\n", count);
+	fflush(stdout);
+	ctx.lazy_plan = 0;
+}
+
+int test_done(void)
+{
+	assert(!ctx.running);
+
+	if (ctx.lazy_plan)
+		test_plan(ctx.count);
+
+	return ctx.failed;
+}
+
+void test_skip(const char *format, ...)
+{
+	va_list ap;
+
+	assert(ctx.running);
+
+	ctx.result = RESULT_SKIP;
+	va_start(ap, format);
+	if (format)
+		msg_with_prefix("# skipping test - ", format, ap);
+	va_end(ap);
+}
+
+void test_skip_all(const char *format, ...)
+{
+	va_list ap;
+	const char *prefix;
+
+	if (!ctx.count && ctx.lazy_plan) {
+		/* We have not printed a test plan yet */
+		prefix = "1..0 # SKIP ";
+		ctx.lazy_plan = 0;
+	} else {
+		/* We have already printed a test plan */
+		prefix = "Bail out! # ";
+		ctx.failed = 1;
+	}
+	ctx.skip_all = 1;
+	ctx.result = RESULT_SKIP;
+	va_start(ap, format);
+	msg_with_prefix(prefix, format, ap);
+	va_end(ap);
+}
+
+int test__run_begin(void)
+{
+	assert(!ctx.running);
+
+	ctx.count++;
+	ctx.result = RESULT_NONE;
+	ctx.running = 1;
+
+	return ctx.skip_all;
+}
+
+static void print_description(const char *format, va_list ap)
+{
+	if (format) {
+		fputs(" - ", stdout);
+		vprintf(format, ap);
+	}
+}
+
+int test__run_end(int was_run UNUSED, const char *location, const char *format, ...)
+{
+	va_list ap;
+
+	assert(ctx.running);
+	assert(!ctx.todo);
+
+	fflush(stderr);
+	va_start(ap, format);
+	if (!ctx.skip_all) {
+		switch (ctx.result) {
+		case RESULT_SUCCESS:
+			printf("ok %d", ctx.count);
+			print_description(format, ap);
+			break;
+
+		case RESULT_FAILURE:
+			printf("not ok %d", ctx.count);
+			print_description(format, ap);
+			break;
+
+		case RESULT_TODO:
+			printf("not ok %d", ctx.count);
+			print_description(format, ap);
+			printf(" # TODO");
+			break;
+
+		case RESULT_SKIP:
+			printf("ok %d", ctx.count);
+			print_description(format, ap);
+			printf(" # SKIP");
+			break;
+
+		case RESULT_NONE:
+			test_msg("BUG: test has no checks at %s",
+				 make_relative(location));
+			printf("not ok %d", ctx.count);
+			print_description(format, ap);
+			ctx.result = RESULT_FAILURE;
+			break;
+		}
+	}
+	va_end(ap);
+	ctx.running = 0;
+	if (ctx.skip_all)
+		return 1;
+	putc('\n', stdout);
+	fflush(stdout);
+	ctx.failed |= ctx.result == RESULT_FAILURE;
+
+	return ctx.result != RESULT_FAILURE;
+}
+
+static void test_fail(void)
+{
+	assert(ctx.result != RESULT_SKIP);
+
+	ctx.result = RESULT_FAILURE;
+}
+
+static void test_pass(void)
+{
+	assert(ctx.result != RESULT_SKIP);
+
+	if (ctx.result == RESULT_NONE)
+		ctx.result = RESULT_SUCCESS;
+}
+
+static void test_todo(void)
+{
+	assert(ctx.result != RESULT_SKIP);
+
+	if (ctx.result != RESULT_FAILURE)
+		ctx.result = RESULT_TODO;
+}
+
+int test_assert(const char *location, const char *check, int ok)
+{
+	assert(ctx.running);
+
+	if (ctx.result == RESULT_SKIP) {
+		test_msg("skipping check '%s' at %s", check,
+			 make_relative(location));
+		return 1;
+	}
+	if (!ctx.todo) {
+		if (ok) {
+			test_pass();
+		} else {
+			test_msg("check \"%s\" failed at %s", check,
+				 make_relative(location));
+			test_fail();
+		}
+	}
+
+	return !!ok;
+}
+
+void test__todo_begin(void)
+{
+	assert(ctx.running);
+	assert(!ctx.todo);
+
+	ctx.todo = 1;
+}
+
+int test__todo_end(const char *location, const char *check, int res)
+{
+	assert(ctx.running);
+	assert(ctx.todo);
+
+	ctx.todo = 0;
+	if (ctx.result == RESULT_SKIP)
+		return 1;
+	if (res) {
+		test_msg("todo check '%s' succeeded at %s", check,
+			 make_relative(location));
+		test_fail();
+	} else {
+		test_todo();
+	}
+
+	return !res;
+}
+
+int check_bool_loc(const char *loc, const char *check, int ok)
+{
+	return test_assert(loc, check, ok);
+}
+
+union test__tmp test__tmp[2];
+
+int check_int_loc(const char *loc, const char *check, int ok,
+		  intmax_t a, intmax_t b)
+{
+	int ret = test_assert(loc, check, ok);
+
+	if (!ret) {
+		test_msg("   left: %"PRIdMAX, a);
+		test_msg("  right: %"PRIdMAX, b);
+	}
+
+	return ret;
+}
+
+int check_uint_loc(const char *loc, const char *check, int ok,
+		   uintmax_t a, uintmax_t b)
+{
+	int ret = test_assert(loc, check, ok);
+
+	if (!ret) {
+		test_msg("   left: %"PRIuMAX, a);
+		test_msg("  right: %"PRIuMAX, b);
+	}
+
+	return ret;
+}
+
+static void print_one_char(char ch, char quote)
+{
+	if ((unsigned char)ch < 0x20u || ch == 0x7f) {
+		/* TODO: improve handling of \a, \b, \f ... */
+		printf("\\%03o", (unsigned char)ch);
+	} else {
+		if (ch == '\\' || ch == quote)
+			putc('\\', stdout);
+		putc(ch, stdout);
+	}
+}
+
+static void print_char(const char *prefix, char ch)
+{
+	printf("# %s: '", prefix);
+	print_one_char(ch, '\'');
+	fputs("'\n", stdout);
+}
+
+int check_char_loc(const char *loc, const char *check, int ok, char a, char b)
+{
+	int ret = test_assert(loc, check, ok);
+
+	if (!ret) {
+		fflush(stderr);
+		print_char("   left", a);
+		print_char("  right", b);
+		fflush(stdout);
+	}
+
+	return ret;
+}
+
+static void print_str(const char *prefix, const char *str)
+{
+	printf("# %s: ", prefix);
+	if (!str) {
+		fputs("NULL\n", stdout);
+	} else {
+		putc('"', stdout);
+		while (*str)
+			print_one_char(*str++, '"');
+		fputs("\"\n", stdout);
+	}
+}
+
+int check_str_loc(const char *loc, const char *check,
+		  const char *a, const char *b)
+{
+	int ok = (!a && !b) || (a && b && !strcmp(a, b));
+	int ret = test_assert(loc, check, ok);
+
+	if (!ret) {
+		fflush(stderr);
+		print_str("   left", a);
+		print_str("  right", b);
+		fflush(stdout);
+	}
+
+	return ret;
+}
diff --git a/t/unit-tests/test-lib.h b/t/unit-tests/test-lib.h
new file mode 100644
index 0000000..a8f07ae
--- /dev/null
+++ b/t/unit-tests/test-lib.h
@@ -0,0 +1,149 @@
+#ifndef TEST_LIB_H
+#define TEST_LIB_H
+
+#include "git-compat-util.h"
+
+/*
+ * Run a test function, returns 1 if the test succeeds, 0 if it
+ * fails. If test_skip_all() has been called then the test will not be
+ * run. The description for each test should be unique. For example:
+ *
+ *  TEST(test_something(arg1, arg2), "something %d %d", arg1, arg2)
+ */
+#define TEST(t, ...)					\
+	test__run_end(test__run_begin() ? 0 : (t, 1),	\
+		      TEST_LOCATION(),  __VA_ARGS__)
+
+/*
+ * Print a test plan, should be called before any tests. If the number
+ * of tests is not known in advance test_done() will automatically
+ * print a plan at the end of the test program.
+ */
+void test_plan(int count);
+
+/*
+ * test_done() must be called at the end of main(). It will print the
+ * plan if plan() was not called at the beginning of the test program
+ * and returns the exit code for the test program.
+ */
+int test_done(void);
+
+/* Skip the current test. */
+__attribute__((format (printf, 1, 2)))
+void test_skip(const char *format, ...);
+
+/* Skip all remaining tests. */
+__attribute__((format (printf, 1, 2)))
+void test_skip_all(const char *format, ...);
+
+/* Print a diagnostic message to stdout. */
+__attribute__((format (printf, 1, 2)))
+void test_msg(const char *format, ...);
+
+/*
+ * Test checks are built around test_assert(). checks return 1 on
+ * success, 0 on failure. If any check fails then the test will fail. To
+ * create a custom check define a function that wraps test_assert() and
+ * a macro to wrap that function to provide a source location and
+ * stringified arguments. Custom checks that take pointer arguments
+ * should be careful to check that they are non-NULL before
+ * dereferencing them. For example:
+ *
+ *  static int check_oid_loc(const char *loc, const char *check,
+ *			     struct object_id *a, struct object_id *b)
+ *  {
+ *	    int res = test_assert(loc, check, a && b && oideq(a, b));
+ *
+ *	    if (!res) {
+ *		    test_msg("   left: %s", a ? oid_to_hex(a) : "NULL";
+ *		    test_msg("  right: %s", b ? oid_to_hex(a) : "NULL";
+ *
+ *	    }
+ *	    return res;
+ *  }
+ *
+ *  #define check_oid(a, b) \
+ *	    check_oid_loc(TEST_LOCATION(), "oideq("#a", "#b")", a, b)
+ */
+int test_assert(const char *location, const char *check, int ok);
+
+/* Helper macro to pass the location to checks */
+#define TEST_LOCATION() TEST__MAKE_LOCATION(__LINE__)
+
+/* Check a boolean condition. */
+#define check(x)				\
+	check_bool_loc(TEST_LOCATION(), #x, x)
+int check_bool_loc(const char *loc, const char *check, int ok);
+
+/*
+ * Compare two integers. Prints a message with the two values if the
+ * comparison fails. NB this is not thread safe.
+ */
+#define check_int(a, op, b)						\
+	(test__tmp[0].i = (a), test__tmp[1].i = (b),			\
+	 check_int_loc(TEST_LOCATION(), #a" "#op" "#b,			\
+		       test__tmp[0].i op test__tmp[1].i,		\
+		       test__tmp[0].i, test__tmp[1].i))
+int check_int_loc(const char *loc, const char *check, int ok,
+		  intmax_t a, intmax_t b);
+
+/*
+ * Compare two unsigned integers. Prints a message with the two values
+ * if the comparison fails. NB this is not thread safe.
+ */
+#define check_uint(a, op, b)						\
+	(test__tmp[0].u = (a), test__tmp[1].u = (b),			\
+	 check_uint_loc(TEST_LOCATION(), #a" "#op" "#b,			\
+			test__tmp[0].u op test__tmp[1].u,		\
+			test__tmp[0].u, test__tmp[1].u))
+int check_uint_loc(const char *loc, const char *check, int ok,
+		   uintmax_t a, uintmax_t b);
+
+/*
+ * Compare two chars. Prints a message with the two values if the
+ * comparison fails. NB this is not thread safe.
+ */
+#define check_char(a, op, b)						\
+	(test__tmp[0].c = (a), test__tmp[1].c = (b),			\
+	 check_char_loc(TEST_LOCATION(), #a" "#op" "#b,			\
+			test__tmp[0].c op test__tmp[1].c,		\
+			test__tmp[0].c, test__tmp[1].c))
+int check_char_loc(const char *loc, const char *check, int ok,
+		   char a, char b);
+
+/* Check whether two strings are equal. */
+#define check_str(a, b)							\
+	check_str_loc(TEST_LOCATION(), "!strcmp("#a", "#b")", a, b)
+int check_str_loc(const char *loc, const char *check,
+		  const char *a, const char *b);
+
+/*
+ * Wrap a check that is known to fail. If the check succeeds then the
+ * test will fail. Returns 1 if the check fails, 0 if it
+ * succeeds. For example:
+ *
+ *  TEST_TODO(check(0));
+ */
+#define TEST_TODO(check) \
+	(test__todo_begin(), test__todo_end(TEST_LOCATION(), #check, check))
+
+/* Private helpers */
+
+#define TEST__STR(x) #x
+#define TEST__MAKE_LOCATION(line) __FILE__ ":" TEST__STR(line)
+
+union test__tmp {
+	intmax_t i;
+	uintmax_t u;
+	char c;
+};
+
+extern union test__tmp test__tmp[2];
+
+int test__run_begin(void);
+__attribute__((format (printf, 3, 4)))
+int test__run_end(int, const char *, const char *, ...);
+void test__todo_begin(void);
+int test__todo_end(const char *, const char *, int);
+
+#endif /* TEST_LIB_H */
diff --git a/t/valgrind/valgrind.sh b/t/valgrind/valgrind.sh
index 669ebaf..3c8ee19 100755
--- a/t/valgrind/valgrind.sh
+++ b/t/valgrind/valgrind.sh
@@ -23,7 +23,7 @@
 	VALGRIND_MAJOR=$(expr "$VALGRIND_VERSION" : '[^0-9]*\([0-9]*\)')
 	VALGRIND_MINOR=$(expr "$VALGRIND_VERSION" : '[^0-9]*[0-9]*\.\([0-9]*\)')
 	test 3 -gt "$VALGRIND_MAJOR" ||
-	test 3 -eq "$VALGRIND_MAJOR" -a 4 -gt "$VALGRIND_MINOR" ||
+	{ test 3 -eq "$VALGRIND_MAJOR" && test 4 -gt "$VALGRIND_MINOR"; } ||
 	TOOL_OPTIONS="$TOOL_OPTIONS --track-origins=yes"
 	;;
 *)
diff --git a/transport-helper.c b/transport-helper.c
index e34a8f4..dd6002b 100644
--- a/transport-helper.c
+++ b/transport-helper.c
@@ -17,6 +17,7 @@
 #include "refspec.h"
 #include "transport-internal.h"
 #include "protocol.h"
+#include "packfile.h"
 
 static int debug;
 
@@ -432,6 +433,8 @@
 			warning(_("%s unexpectedly said: '%s'"), data->name, buf.buf);
 	}
 	strbuf_release(&buf);
+
+	reprepare_packed_git(the_repository);
 	return 0;
 }
 
@@ -626,7 +629,8 @@
 		ret = run_connect(transport, &cmdbuf);
 	} else if (data->stateless_connect &&
 		   (get_protocol_version_config() == protocol_v2) &&
-		   !strcmp("git-upload-pack", name)) {
+		   (!strcmp("git-upload-pack", name) ||
+		    !strcmp("git-upload-archive", name))) {
 		strbuf_addf(&cmdbuf, "stateless-connect %s\n", name);
 		ret = run_connect(transport, &cmdbuf);
 		if (ret)
@@ -643,6 +647,7 @@
 	struct helper_data *data = transport->data;
 	const char *name;
 	const char *exec;
+	int ret;
 
 	name = for_push ? "git-receive-pack" : "git-upload-pack";
 	if (for_push)
@@ -650,7 +655,10 @@
 	else
 		exec = data->transport_options.uploadpack;
 
-	return process_connect_service(transport, name, exec);
+	ret = process_connect_service(transport, name, exec);
+	if (ret)
+		do_take_over(transport);
+	return ret;
 }
 
 static int connect_helper(struct transport *transport, const char *name,
@@ -660,14 +668,14 @@
 
 	/* Get_helper so connect is inited. */
 	get_helper(transport);
-	if (!data->connect)
-		die(_("operation not supported by protocol"));
 
 	if (!process_connect_service(transport, name, exec))
 		die(_("can't connect to subservice %s"), name);
 
 	fd[0] = data->helper->out;
 	fd[1] = data->helper->in;
+
+	do_take_over(transport);
 	return 0;
 }
 
@@ -682,10 +690,8 @@
 
 	get_helper(transport);
 
-	if (process_connect(transport, 0)) {
-		do_take_over(transport);
+	if (process_connect(transport, 0))
 		return transport->vtable->fetch_refs(transport, nr_heads, to_fetch);
-	}
 
 	/*
 	 * If we reach here, then the server, the client, and/or the transport
@@ -1142,10 +1148,8 @@
 {
 	struct helper_data *data = transport->data;
 
-	if (process_connect(transport, 1)) {
-		do_take_over(transport);
+	if (process_connect(transport, 1))
 		return transport->vtable->push_refs(transport, remote_refs, flags);
-	}
 
 	if (!remote_refs) {
 		fprintf(stderr,
@@ -1186,11 +1190,9 @@
 {
 	get_helper(transport);
 
-	if (process_connect(transport, for_push)) {
-		do_take_over(transport);
+	if (process_connect(transport, for_push))
 		return transport->vtable->get_refs_list(transport, for_push,
 							transport_options);
-	}
 
 	return get_refs_list_using_list(transport, for_push);
 }
@@ -1274,10 +1276,8 @@
 {
 	get_helper(transport);
 
-	if (process_connect(transport, 0)) {
-		do_take_over(transport);
+	if (process_connect(transport, 0))
 		return transport->vtable->get_bundle_uri(transport);
-	}
 
 	return -1;
 }
diff --git a/transport.c b/transport.c
index bd7899e..df518ea 100644
--- a/transport.c
+++ b/transport.c
@@ -1467,6 +1467,7 @@
 	if (porcelain && !push_ret)
 		puts("Done");
 	else if (!quiet && !ret && !transport_refs_pushed(remote_refs))
+		/* stable plumbing output; do not modify or localize */
 		fprintf(stderr, "Everything up-to-date\n");
 
 done:
diff --git a/worktree.c b/worktree.c
index 1399d45..b02a05a 100644
--- a/worktree.c
+++ b/worktree.c
@@ -12,18 +12,23 @@
 #include "wt-status.h"
 #include "config.h"
 
+void free_worktree(struct worktree *worktree)
+{
+	if (!worktree)
+		return;
+	free(worktree->path);
+	free(worktree->id);
+	free(worktree->head_ref);
+	free(worktree->lock_reason);
+	free(worktree->prune_reason);
+	free(worktree);
+}
+
 void free_worktrees(struct worktree **worktrees)
 {
 	int i = 0;
-
-	for (i = 0; worktrees[i]; i++) {
-		free(worktrees[i]->path);
-		free(worktrees[i]->id);
-		free(worktrees[i]->head_ref);
-		free(worktrees[i]->lock_reason);
-		free(worktrees[i]->prune_reason);
-		free(worktrees[i]);
-	}
+	for (i = 0; worktrees[i]; i++)
+		free_worktree(worktrees[i]);
 	free (worktrees);
 }
 
@@ -51,7 +56,7 @@
 /**
  * get the main worktree
  */
-static struct worktree *get_main_worktree(void)
+static struct worktree *get_main_worktree(int skip_reading_head)
 {
 	struct worktree *worktree = NULL;
 	struct strbuf worktree_path = STRBUF_INIT;
@@ -70,11 +75,13 @@
 	 */
 	worktree->is_bare = (is_bare_repository_cfg == 1) ||
 		is_bare_repository();
-	add_head_info(worktree);
+	if (!skip_reading_head)
+		add_head_info(worktree);
 	return worktree;
 }
 
-static struct worktree *get_linked_worktree(const char *id)
+struct worktree *get_linked_worktree(const char *id,
+				     int skip_reading_head)
 {
 	struct worktree *worktree = NULL;
 	struct strbuf path = STRBUF_INIT;
@@ -93,7 +100,8 @@
 	CALLOC_ARRAY(worktree, 1);
 	worktree->path = strbuf_detach(&worktree_path, NULL);
 	worktree->id = xstrdup(id);
-	add_head_info(worktree);
+	if (!skip_reading_head)
+		add_head_info(worktree);
 
 done:
 	strbuf_release(&path);
@@ -118,7 +126,14 @@
 	free(git_dir);
 }
 
-struct worktree **get_worktrees(void)
+/*
+ * NEEDSWORK: This function exists so that we can look up metadata of a
+ * worktree without trying to access any of its internals like the refdb. It
+ * would be preferable to instead have a corruption-tolerant function for
+ * retrieving worktree metadata that could be used when the worktree is known
+ * to not be in a healthy state, e.g. when creating or repairing it.
+ */
+static struct worktree **get_worktrees_internal(int skip_reading_head)
 {
 	struct worktree **list = NULL;
 	struct strbuf path = STRBUF_INIT;
@@ -128,7 +143,7 @@
 
 	ALLOC_ARRAY(list, alloc);
 
-	list[counter++] = get_main_worktree();
+	list[counter++] = get_main_worktree(skip_reading_head);
 
 	strbuf_addf(&path, "%s/worktrees", get_git_common_dir());
 	dir = opendir(path.buf);
@@ -137,7 +152,7 @@
 		while ((d = readdir_skip_dot_and_dotdot(dir)) != NULL) {
 			struct worktree *linked = NULL;
 
-			if ((linked = get_linked_worktree(d->d_name))) {
+			if ((linked = get_linked_worktree(d->d_name, skip_reading_head))) {
 				ALLOC_GROW(list, counter + 1, alloc);
 				list[counter++] = linked;
 			}
@@ -151,6 +166,11 @@
 	return list;
 }
 
+struct worktree **get_worktrees(void)
+{
+	return get_worktrees_internal(0);
+}
+
 const char *get_worktree_git_dir(const struct worktree *wt)
 {
 	if (!wt)
@@ -591,7 +611,7 @@
 
 void repair_worktrees(worktree_repair_fn fn, void *cb_data)
 {
-	struct worktree **worktrees = get_worktrees();
+	struct worktree **worktrees = get_worktrees_internal(1);
 	struct worktree **wt = worktrees + 1; /* +1 skips main worktree */
 
 	if (!fn)
diff --git a/worktree.h b/worktree.h
index ce45b66..f14784a 100644
--- a/worktree.h
+++ b/worktree.h
@@ -58,6 +58,13 @@
 			       const char *arg);
 
 /*
+ * Look up the worktree corresponding to `id`, or NULL of no such worktree
+ * exists.
+ */
+struct worktree *get_linked_worktree(const char *id,
+				     int skip_reading_head);
+
+/*
  * Return the worktree corresponding to `path`, or NULL if no such worktree
  * exists.
  */
@@ -135,6 +142,11 @@
 void repair_worktree_at_path(const char *, worktree_repair_fn, void *cb_data);
 
 /*
+ * Free up the memory for a worktree.
+ */
+void free_worktree(struct worktree *);
+
+/*
  * Free up the memory for worktree(s)
  */
 void free_worktrees(struct worktree **);
diff --git a/wt-status.c b/wt-status.c
index 9e8c080..b5a2908 100644
--- a/wt-status.c
+++ b/wt-status.c
@@ -1296,26 +1296,32 @@
 static int split_commit_in_progress(struct wt_status *s)
 {
 	int split_in_progress = 0;
-	char *head, *orig_head, *rebase_amend, *rebase_orig_head;
+	struct object_id head_oid, orig_head_oid;
+	char *rebase_amend, *rebase_orig_head;
+	int head_flags, orig_head_flags;
 
 	if ((!s->amend && !s->nowarn && !s->workdir_dirty) ||
 	    !s->branch || strcmp(s->branch, "HEAD"))
 		return 0;
 
-	head = read_line_from_git_path("HEAD");
-	orig_head = read_line_from_git_path("ORIG_HEAD");
+	if (read_ref_full("HEAD", RESOLVE_REF_READING | RESOLVE_REF_NO_RECURSE,
+			  &head_oid, &head_flags) ||
+	    read_ref_full("ORIG_HEAD", RESOLVE_REF_READING | RESOLVE_REF_NO_RECURSE,
+			  &orig_head_oid, &orig_head_flags))
+		return 0;
+	if (head_flags & REF_ISSYMREF || orig_head_flags & REF_ISSYMREF)
+		return 0;
+
 	rebase_amend = read_line_from_git_path("rebase-merge/amend");
 	rebase_orig_head = read_line_from_git_path("rebase-merge/orig-head");
 
-	if (!head || !orig_head || !rebase_amend || !rebase_orig_head)
+	if (!rebase_amend || !rebase_orig_head)
 		; /* fall through, no split in progress */
 	else if (!strcmp(rebase_amend, rebase_orig_head))
-		split_in_progress = !!strcmp(head, rebase_amend);
-	else if (strcmp(orig_head, rebase_orig_head))
+		split_in_progress = !!strcmp(oid_to_hex(&head_oid), rebase_amend);
+	else if (strcmp(oid_to_hex(&orig_head_oid), rebase_orig_head))
 		split_in_progress = 1;
 
-	free(head);
-	free(orig_head);
 	free(rebase_amend);
 	free(rebase_orig_head);