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Git 2.31 Release Notes
======================
Updates since v2.30
-------------------
Backward incompatible and other important changes
* The "pack-redundant" command, which has been left stale with almost
unusable performance issues, now warns loudly when it gets used, as
we no longer want to recommend its use (instead just "repack -d"
instead).
* The development community has adopted Contributor Covenant v2.0 to
update from v1.4 that we have been using.
UI, Workflows & Features
* The "--format=%(trailers)" mechanism gets enhanced to make it
easier to design output for machine consumption.
* When a user does not tell "git pull" to use rebase or merge, the
command gives a loud message telling a user to choose between
rebase or merge but creates a merge anyway, forcing users who would
want to rebase to redo the operation. Fix an early part of this
problem by tightening the condition to give the message---there is
no reason to stop or force the user to choose between rebase or
merge if the history fast-forwards.
* The configuration variable 'core.abbrev' can be set to 'no' to
force no abbreviation regardless of the hash algorithm.
* "git rev-parse" can be explicitly told to give output as absolute
or relative path with the `--path-format=(absolute|relative)` option.
* Bash completion (in contrib/) update to make it easier for
end-users to add completion for their custom "git" subcommands.
* "git maintenance" learned to drive scheduled maintenance on
platforms whose native scheduling methods are not 'cron'.
* After expiring a reflog and making a single commit, the reflog for
the branch would record a single entry that knows both @{0} and
@{1}, but we failed to answer "what commit were we on?", i.e. @{1}
* "git bundle" learns "--stdin" option to read its refs from the
standard input. Also, it now does not lose refs whey they point
at the same object.
Performance, Internal Implementation, Development Support etc.
* A 3-year old test that was not testing anything useful has been
corrected.
* Retire more names with "sha1" in it.
* The topological walk codepath is covered by new trace2 stats.
* Update the Code-of-conduct to version 2.0 from the upstream (we've
been using version 1.4).
* "git mktag" validates its input using its own rules before writing
a tag object---it has been updated to share the logic with "git
fsck".
* Two new ways to feed configuration variable-value pairs via
environment variables have been introduced, and the way
GIT_CONFIG_PARAMETERS encodes variable/value pairs has been tweaked
to make it more robust.
* Tests have been updated so that they do not to get affected by the
name of the default branch "git init" creates.
* "git fetch" learns to treat ref updates atomically in all-or-none
fashion, just like "git push" does, with the new "--atomic" option.
* The peel_ref() API has been replaced with peel_iterated_oid().
* The .use_shell flag in struct child_process that is passed to
run_command() API has been clarified with a bit more documentation.
Fixes since v2.30
-----------------
* Diagnose command line error of "git rebase" early.
(merge ca5120c339 rs/rebase-commit-validation later to maint).
* Clean up option descriptions in "git cmd --help".
(merge e73fe3dd02 zh/arg-help-format later to maint).
* "git stash" did not work well in a sparsely checked out working
tree.
(merge ba359fd507 en/stash-apply-sparse-checkout later to maint).
* Some tests expect that "ls -l" output has either '-' or 'x' for
group executable bit, but setgid bit can be inherited from parent
directory and make these fields 'S' or 's' instead, causing test
failures.
(merge ea8bbf2a4e mt/t4129-with-setgid-dir later to maint).
* "git for-each-repo --config=<var> <cmd>" should not run <cmd> for
any repository when the configuration variable <var> is not defined
even once.
(merge 6c62f01552 ds/for-each-repo-noopfix later to maint).
* Fix 2.29 regression where "git mergetool --tool-help" fails to list
all the available tools.
(merge 80f5a16798 pb/mergetool-tool-help-fix later to maint).
* Fix for procedure to building CI test environment for mac.
(merge 3831132ace jc/macos-install-dependencies-fix later to maint).
* The implementation of "git branch --sort" wrt the detached HEAD
display has always been hacky, which has been cleaned up.
(merge 4045f659bd ab/branch-sort later to maint).
* Newline characters in the host and path part of git:// URL are
now forbidden.
(merge 6aed56736b jk/forbid-lf-in-git-url later to maint).
* "git diff" showed a submodule working tree with untracked cruft as
"Submodule commit <objectname>-dirty", but a natural expectation is
that the "-dirty" indicator would align with "git describe --dirty",
which does not consider having untracked files in the working tree
as source of dirtiness. The inconsistency has been fixed.
* When more than one commit with the same patch ID appears on one
side, "git log --cherry-pick A...B" did not exclude them all when a
commit with the same patch ID appears on the other side. Now it
does.
(merge c9e3a4e76d jk/log-cherry-pick-duplicate-patches later to maint).
* Documentation for "git fsck" lost stale bits that has become
incorrect.
(merge 28cc00a13d ab/fsck-doc-fix later to maint).
* Doc fix for packfile URI feature.
(merge bfc2a36ff2 jt/packfile-as-uri-doc later to maint).
* Other code cleanup, docfix, build fix, etc.
(merge 505a276596 pk/subsub-fetch-fix-take-2 later to maint).
(merge 33fc56253b fc/t6030-bisect-reset-removes-auxiliary-files later to maint).
(merge 7efc378205 ta/doc-typofix later to maint).
(merge 1f4e9319c7 pb/doc-modules-git-work-tree-typofix later to maint).
(merge 04f6b0a192 ma/t1300-cleanup later to maint).
(merge 7b77f5a13e ma/doc-pack-format-varint-for-sizes later to maint).
(merge cc2d43be2b nk/perf-fsmonitor-cleanup later to maint).
(merge c8302c6c00 ar/t6016-modernise later to maint).
(merge 0454986e78 jc/sign-off later to maint).
(merge 155067ab4f vv/send-email-with-less-secure-apps-access later to maint).
(merge acaabcf391 jk/t5516-deflake later to maint).
(merge a1e03535db ad/t4129-setfacl-target-fix later to maint).
(merge b356d23638 ug/doc-lose-dircache later to maint).
(merge 9371c0e9dd ab/gettext-charset-comment-fix later to maint).
(merge 52fc4f195c dl/p4-encode-after-kw-expansion later to maint).
(merge 4eb56b56e7 bc/doc-status-short later to maint).
(merge a4a1ca22ef tb/local-clone-race-doc later to maint).
(merge 6a8c89d053 ma/more-opaque-lock-file later to maint).
(merge 4a5ec7d166 js/skip-dashed-built-ins-from-config-mak later to maint).
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