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Git v2.46 Release Notes
=======================
Backward Compatibility Notes
(None at this moment)
UI, Workflows & Features
* The "--rfc" option of "git format-patch" learned to take an
optional string value to be used in place of "RFC" to tweak the
"[PATCH]" on the subject header.
* The credential helper protocol, together with the HTTP layer, have
been enhanced to support authentication schemes different from
username & password pair, like Bearer and NTLM.
* Command line completion script (in contrib/) learned to complete
"git symbolic-ref" a bit better (you need to enable plumbing
commands to be completed with GIT_COMPLETION_SHOW_ALL_COMMANDS).
* When the user responds to a prompt given by "git add -p" with an
unsupported command, list of available commands were given, which
was too much if the user knew what they wanted to type but merely
made a typo. Now the user gets a much shorter error message.
* The color parsing code learned to handle 12-bit RGB colors, spelled
as "#RGB" (in addition to "#RRGGBB" that is already supported).
* The operation mode options (like "--get") the "git config" command
uses have been deprecated and replaced with subcommands (like "git
config get").
* "git tag" learned the "--trailer" option to futz with the trailers
in the same way as "git commit" does.
* A new global "--no-advice" option can be used to disable all advice
messages, which is meant to be used only in scripts.
* Updates to symbolic refs can now be made as a part of ref
transaction.
* The trailer API has been reshuffled a bit.
* Terminology to call various ref-like things are getting
straightened out.
* The command line completion script (in contrib/) has been adjusted
to the recent update to "git config" that adopted subcommand based
UI.
* The knobs to tweak how reftable files are written have been made
available as configuration variables.
* When "git push" notices that the commit at the tip of the ref on
the other side it is about to overwrite does not exist locally, it
used to first try fetching it if the local repository is a partial
clone. The command has been taught not to do so and immediately
fail instead.
* The promisor.quiet configuration knob can be set to true to make
lazy fetching from promisor remotes silent.
Performance, Internal Implementation, Development Support etc.
* Advertise "git contacts", a tool for newcomers to find people to
ask review for their patches, a bit more in our developer
documentation.
* In addition to building the objects needed, try to link the objects
that are used in fuzzer tests, to make sure at least they build
without bitrot, in Linux CI runs.
* Code to write out reftable has seen some optimization and
simplification.
* Tests to ensure interoperability between reftable written by jgit
and our code have been added and enabled in CI.
* The singleton index_state instance "the_index" has been eliminated
by always instantiating "the_repository" and replacing references
to "the_index" with references to its .index member.
* Git-GUI has a new maintainer, Johannes Sixt.
* The "test-tool" has been taught to run testsuite tests in parallel,
bypassing the need to use the "prove" tool.
* The "whitespace check" task that was enabled for GitHub Actions CI
has been ported to GitLab CI.
* The refs API lost functions that implicitly assumes to work on the
primary ref_store by forcing the callers to pass a ref_store as an
argument.
* Code clean-up to reduce inter-function communication inside
builtin/config.c done via the use of global variables.
* The pack bitmap code saw some clean-up to prepare for a follow-up topic.
* Preliminary code clean-up for "git send-email".
* The default "creation-factor" used by "git format-patch" has been
raised to make it more aggressively find matching commits.
* Before discovering the repository details, We used to assume SHA-1
as the "default" hash function, which has been corrected. Hopefully
this will smoke out codepaths that rely on such an unwarranted
assumptions.
* The project decision making policy has been documented.
* The strcmp-offset tests have been rewritten using the unit test
framework.
* "git add -p" learned to complain when an answer with more than one
letter is given to a prompt that expects a single letter answer.
* The alias-expanded command lines are logged to the trace output.
* A new test was added to ensure git commands that are designed to
run outside repositories do work.
* Basic unit tests for reftable have been reimplemented under the
unit test framework.
* A pair of test helpers that essentially are unit tests on hash
algorithms have been rewritten using the unit-tests framework.
* A test helper that essentially is unit tests on the "decorate"
logic has been rewritten using the unit-tests framework.
* Many memory leaks in the sparse-checkout code paths have been
plugged.
Fixes since v2.45
-----------------
* "git rebase --signoff" used to forget that it needs to add a
sign-off to the resulting commit when told to continue after a
conflict stops its operation.
(merge a6c2654f83 pw/rebase-m-signoff-fix later to maint).
* The procedure to build multi-pack-index got confused by the
replace-refs mechanism, which has been corrected by disabling the
latter.
(merge 93e2ae1c95 xx/disable-replace-when-building-midx later to maint).
* The "-k" and "--rfc" options of "format-patch" will now error out
when used together, as one tells us not to add anything to the
title of the commit, and the other one tells us to add "RFC" in
addition to "PATCH".
(merge cadcf58085 ds/format-patch-rfc-and-k later to maint).
* "git stash -S" did not handle binary files correctly, which has
been corrected.
(merge 5fb7686409 aj/stash-staged-fix later to maint).
* A scheduled "git maintenance" job is expected to work on all
repositories it knows about, but it stopped at the first one that
errored out. Now it keeps going.
(merge c75662bfc9 js/for-each-repo-keep-going later to maint).
* zsh can pretend to be a normal shell pretty well except for some
glitches that we tickle in some of our scripts. Work them around
so that "vimdiff" and our test suite works well enough with it.
(merge fedd5c79ff bc/zsh-compatibility later to maint).
* Command line completion support for zsh (in contrib/) has been
updated to stop exposing internal state to end-user shell
interaction.
(merge 3c20acdf46 dk/zsh-git-repo-path-fix later to maint).
* Tests that try to corrupt in-repository files in chunked format did
not work well on macOS due to its broken "mv", which has been
worked around.
* The maximum size of attribute files is enforced more consistently.
(merge c793f9cb08 tb/attr-limits later to maint).
* Unbreak CI jobs so that we do not attempt to use Python 2 that has
been removed from the platform.
* Git 2.43 started using the tree of HEAD as the source of attributes
in a bare repository, which has severe performance implications.
For now, revert the change, without ripping out a more explicit
support for the attr.tree configuration variable.
* The "--exit-code" option of "git diff" command learned to work with
the "--ext-diff" option.
(merge 11be65cfa4 rs/external-diff-with-exit-code later to maint).
* Windows CI running in GitHub Actions started complaining about the
order of arguments given to calloc(); the imported regex code uses
the wrong order almost consistently, which has been corrected.
* Expose "name conflict" error when a ref creation fails due to D/F
conflict in the ref namespace, to improve an error message given by
"git fetch".
(merge 9339fca23e it/refs-name-conflict later to maint).
* The SubmittingPatches document now refers folks to manpages
translation project.
* The documentation for "git diff --name-only" has been clarified
that it is about showing the names in the post-image tree.
(merge 4986662cbc jc/doc-diff-name-only later to maint).
* The credential helper that talks with osx keychain learned to avoid
storing back the authentication material it just got received from
the keychain.
(merge e1ab45b2da kn/osxkeychain-skip-idempotent-store later to maint).
* The chainlint script (invoked during "make test") did nothing when
it failed to detect the number of available CPUs. It now falls
back to 1 CPU to avoid the problem.
(merge 2e7e9205be es/chainlint-ncores-fix later to maint).
* Revert overly aggressive "layered defence" that went into 2.45.1
and friends, which broke "git-lfs", "git-annex", and other use
cases, so that we can rebuild necessary counterparts in the open.
* "git init" in an already created directory, when the user
configuration has includeif.onbranch, started to fail recently,
which has been corrected.
(merge 407997c1dd ps/fix-reinit-includeif-onbranch later to maint).
* Memory leaks in "git mv" has been plugged.
* The safe.directory configuration knob has been updated to
optionally allow leading path matches.
(merge 313eec177a jc/safe-directory-leading-path later to maint).
* An overly large ".gitignore" files are now rejected silently.
(merge e7c3d1ddba jk/cap-exclude-file-size later to maint).
* Other code cleanup, docfix, build fix, etc.
(merge a5a4cb7b27 rs/diff-parseopts-cleanup later to maint).
(merge 55702c543e fa/p4-error later to maint).
(merge 2566a77774 vd/doc-merge-tree-x-option later to maint).
(merge b64b0df9da ds/scalar-reconfigure-all-fix later to maint).
(merge c81ffcff83 dm/update-index-doc-fix later to maint).
(merge fc0202b0e9 dg/fetch-pack-code-cleanup later to maint).
(merge 7150f140f9 mt/t0211-typofix later to maint).
(merge d424488901 jc/rev-parse-fatal-doc later to maint).
(merge 36d900d2b0 rs/difftool-env-simplify later to maint).