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Subject[ANNOUNCE] Git v2.27.0-rc2
Date
A release candidate Git v2.27.0-rc2 is now available for testing
at the usual places. It is comprised of 509 non-merge commits
since v2.26.0, contributed by 59 people, 17 of which are new faces.

The tarballs are found at:

https://www.kernel.org/pub/software/scm/git/testing/

The following public repositories all have a copy of the
'v2.27.0-rc2' tag and the 'master' branch that the tag points at:

url = https://kernel.googlesource.com/pub/scm/git/git
url = git://repo.or.cz/alt-git.git
url = https://github.com/gitster/git

New contributors whose contributions weren't in v2.26.0 are as follows.
Welcome to the Git development community!

Andras Kucsma, Ansgar Röber, Ash Holland, Christopher
Warrington, Emma Brooks, Jessica Clarke, Jorge Lopez Silva,
Julien Moutinho, Li Xuejiang, luciano.rocha@booking.com,
Matthias Aßhauer, Michael F. Schönitzer, Nathan Sanders,
Son Luong Ngoc, Terry Moschou, Vasil Dimov, and Yang Zhao.

Returning contributors who helped this release are as follows.
Thanks for your continued support.

마누엘, Abhishek Kumar, Alban Gruin, Alexandr Miloslavskiy,
Alex Henrie, Andrei Rybak, Andrew Oakley, Ben Keene, brian
m. carlson, Carlo Marcelo Arenas Belón, Christian Couder,
Damien Robert, Denton Liu, Derrick Stolee, Đoàn Trần Công
Danh, Elijah Newren, Emily Shaffer, Eric Sunshine, Garima Singh,
Greg Price, Hans Jerry Illikainen, Heba Waly, Ismael Luceno,
Jeff King, Jiang Xin, Johannes Schindelin, Jonathan Nieder,
Jonathan Tan, Josh Steadmon, Junio C Hamano, Martin Ågren,
Matheus Tavares, Patrick Steinhardt, Philippe Blain, Phillip
Wood, Pratyush Yadav, René Scharfe, Shourya Shukla, SZEDER
Gábor, Taylor Blau, Thomas Gummerer, and Todd Zullinger.

----------------------------------------------------------------

Git 2.27 Release Notes (draft)
==============================

Updates since v2.26
-------------------

Backward compatibility notes

* When "git describe C" finds that commit C is pointed by a signed or
annotated tag, which records T as its tagname in the object, the
command gives T as its answer. Even if the user renames or moves
such a tag from its natural location in the "refs/tags/" hierarchy,
"git describe C" would still give T as the answer, but in such a
case "git show T^0" would no longer work as expected. There may be
nothing at "refs/tags/T" or even worse there may be a different tag
instead.

Starting from this version, "git describe" will always use the
"long" version, as if the "--long" option were given, when giving
its output based on such a misplaced tag to work around the problem.

* "git pull" issues a warning message until the pull.rebase
configuration variable is explicitly given, which some existing
users may find annoying---those who prefer not to rebase need to
set the variable to false to squelch the warning.

* The transport protocol version 2, which was promoted to the default
in Git 2.26 release, turned out to have some remaining rough edges,
so it has been demoted from the default.


UI, Workflows & Features

* A handful of options to configure SSL when talking to proxies have
been added.

* Smudge/clean conversion filters are now given more information
(e.g. the object of the tree-ish in which the blob being converted
appears, in addition to its path, which has already been given).

* When "git describe C" finds an annotated tag with tagname A to be
the best name to explain commit C, and the tag is stored in a
"wrong" place in the refs/tags hierarchy, e.g. refs/tags/B, the
command gave a warning message but used A (not B) to describe C.
If C is exactly at the tag, the describe output would be "A", but
"git rev-parse A^0" would not be equal as "git rev-parse C^0". The
behavior of the command has been changed to use the "long" form
i.e. A-0-gOBJECTNAME, which is correctly interpreted by rev-parse.

* "git pull" learned to warn when no pull.rebase configuration
exists, and neither --[no-]rebase nor --ff-only is given (which
would result a merge).

* "git p4" learned four new hooks and also "--no-verify" option to
bypass them (and the existing "p4-pre-submit" hook).

* "git pull" shares many options with underlying "git fetch", but
some of them were not documented and some of those that would make
sense to pass down were not passed down.

* "git rebase" learned the "--no-gpg-sign" option to countermand
commit.gpgSign the user may have.

* The output from "git format-patch" uses RFC 2047 encoding for
non-ASCII letters on From: and Subject: headers, so that it can
directly be fed to e-mail programs. A new option has been added
to produce these headers in raw.

* "git log" learned "--show-pulls" that helps pathspec limited
history views; a merge commit that takes the whole change from a
side branch, which is normally omitted from the output, is shown
in addition to the commits that introduce real changes.

* The interactive input from various codepaths are consolidated and
any prompt possibly issued earlier are fflush()ed before we read.

* Allow "git rebase" to reapply all local commits, even if the may be
already in the upstream, without checking first.

* The 'pack.useSparse' configuration variable now defaults to 'true',
enabling an optimization that has been experimental since Git 2.21.

* "git rebase" happens to call some hooks meant for "checkout" and
"commit" by this was not a designed behaviour than historical
accident. This has been documented.

* "git merge" learns the "--autostash" option.

* "sparse-checkout" UI improvements.

* "git update-ref --stdin" learned a handful of new verbs to let the
user control ref update transactions more explicitly, which helps
as an ingredient to implement two-phase commit-style atomic
ref-updates across multiple repositories.

* "git commit-graph write" learned different ways to write out split
files.

* Introduce an extension to the commit-graph to make it efficient to
check for the paths that were modified at each commit using Bloom
filters.

* The approxidate parser learns to parse seconds with fraction and
ignore fractional part.

* The userdiff patterns for Markdown documents have been added.

* The sparse-checkout patterns have been forbidden from excluding all
paths, leaving an empty working tree, for a long time. This
limitation has been lifted.

* "git restore --staged --worktree" now defaults to take the contents
out of "HEAD", instead of erring out.

* "git p4" learned to recover from a (broken) state where a directory
and a file are recorded at the same path in the Perforce repository
the same way as their clients do.

* "git multi-pack-index repack" has been taught to honor some
repack.* configuration variables.


Performance, Internal Implementation, Development Support etc.

* The advise API has been revamped to allow more systematic enumeration of
advice knobs in the future.

* SHA-256 transition continues.

* The code to interface with GnuPG has been refactored.

* "git stash" has kept an escape hatch to use the scripted version
for a few releases, which got stale. It has been removed.

* Enable tests that require GnuPG on Windows.

* Minor test usability improvement.

* Trace2 enhancement to allow logging of the environment variables.

* Test clean-up continues.

* Perf-test update.

* A Windows-specific test element has been made more robust against
misuse from both user's environment and programmer's errors.

* Various tests have been updated to work around issues found with
shell utilities that come with busybox etc.

* The config API made mixed uses of int and size_t types to represent
length of various pieces of text it parsed, which has been updated
to use the correct type (i.e. size_t) throughout.

* The "--decorate-refs" and "--decorate-refs-exclude" options "git
log" takes have learned a companion configuration variable
log.excludeDecoration that sits at the lowest priority in the
family.

* A new CI job to build and run test suite on linux with musl libc
has been added.

* Update the CI configuration to use GitHub Actions, retiring the one
based on Azure Pipelines.

* The directory traversal code had redundant recursive calls which
made its performance characteristics exponential with respect to
the depth of the tree, which was corrected.

* "git blame" learns to take advantage of the "changed-paths" Bloom
filter stored in the commit-graph file.

* The "bugreport" tool has been added.

* The object walk with object filter "--filter=tree:0" can now take
advantage of the pack bitmap when available.

* Instead of always building all branches at GitHub via Actions,
users can specify which branches to build.

* Codepaths that show progress meter have been taught to also use the
start_progress() and the stop_progress() calls as a "region" to be
traced.

* Instead of downloading Windows SDK for CI jobs for windows builds
from an external site (wingit.blob.core.windows.net), use the one
created in the windows-build job, to work around quota issues at
the external site.


Fixes since v2.26
-----------------

* The real_path() convenience function can easily be misused; with a
bit of code refactoring in the callers' side, its use has been
eliminated.
(merge 49d3c4b481 am/real-path-fix later to maint).

* Update "git p4" to work with Python 3.
(merge 6bb40ed20a yz/p4-py3 later to maint).

* The mechanism to prevent "git commit" from making an empty commit
or amending during an interrupted cherry-pick was broken during the
rewrite of "git rebase" in C, which has been corrected.
(merge 430b75f720 pw/advise-rebase-skip later to maint).

* Fix "git checkout --recurse-submodules" of a nested submodule
hierarchy.
(merge 846f34d351 pb/recurse-submodules-fix later to maint).

* The "--fork-point" mode of "git rebase" regressed when the command
was rewritten in C back in 2.20 era, which has been corrected.
(merge f08132f889 at/rebase-fork-point-regression-fix later to maint).

* The import-tars importer (in contrib/fast-import/) used to create
phony files at the top-level of the repository when the archive
contains global PAX headers, which made its own logic to detect and
omit the common leading directory ineffective, which has been
corrected.
(merge c839fcff65 js/import-tars-do-not-make-phony-files-from-pax-headers later to maint).

* Simplify the commit ancestry connectedness check in a partial clone
repository in which "promised" objects are assumed to be obtainable
lazily on-demand from promisor remote repositories.
(merge 2b98478c6f jt/connectivity-check-optim-in-partial-clone later to maint).

* The server-end of the v2 protocol to serve "git clone" and "git
fetch" was not prepared to see a delim packets at unexpected
places, which led to a crash.
(merge cacae4329f jk/harden-protocol-v2-delim-handling later to maint).

* When fed a midx that records no objects, some codepaths tried to
loop from 0 through (num_objects-1), which, due to integer
arithmetic wrapping around, made it nonsense operation with out of
bounds array accesses. The code has been corrected to reject such
an midx file.
(merge 796d61cdc0 dr/midx-avoid-int-underflow later to maint).

* Utitiles run via the run_command() API were not spawned correctly
on Cygwin, when the paths to them are given as a full path with
backslashes.
(merge 05ac8582bc ak/run-command-on-cygwin-fix later to maint).

* "git pull --rebase" tried to run a rebase even after noticing that
the pull results in a fast-forward and no rebase is needed nor
sensible, for the past few years due to a mistake nobody noticed.
(merge fbae70ddc6 en/pull-do-not-rebase-after-fast-forwarding later to maint).

* "git rebase" with the merge backend did not work well when the
rebase.abbreviateCommands configuration was set.
(merge de9f1d3ef4 ag/rebase-merge-allow-ff-under-abbrev-command later to maint).

* The logic to auto-follow tags by "git clone --single-branch" was
not careful to avoid lazy-fetching unnecessary tags, which has been
corrected.
(merge 167a575e2d jk/use-quick-lookup-in-clone-for-tag-following later to maint).

* "git rebase -i" did not leave the reflog entries correctly.
(merge 1f6965f994 en/sequencer-reflog-action later to maint).

* The more aggressive updates to remote-tracking branches we had for
the past 7 years or so were not reflected in the documentation,
which has been corrected.
(merge a44088435c pb/pull-fetch-doc later to maint).

* We've left the command line parsing of "git log :/a/b/" broken for
about a full year without anybody noticing, which has been
corrected.
(merge 0220461071 jc/missing-ref-store-fix later to maint).

* Misc fixes for Windows.
(merge 3efc128cd5 js/mingw-fixes later to maint).

* "git rebase" (again) learns to honor "--no-keep-empty", which lets
the user to discard commits that are empty from the beginning (as
opposed to the ones that become empty because of rebasing). The
interactive rebase also marks commits that are empty in the todo.
(merge 50ed76148a en/rebase-no-keep-empty later to maint).

* Parsing the host part out of URL for the credential helper has been corrected.
(merge 4c5971e18a jk/credential-parsing-end-of-host-in-URL later to maint).

* Document the recommended way to abort a failing test early (e.g. by
exiting a loop), which is to say "return 1".
(merge 7cc112dc95 jc/doc-test-leaving-early later to maint).

* The code that refreshes the last access and modified time of
on-disk packfiles and loose object files have been updated.
(merge 312cd76130 lr/freshen-file-fix later to maint).

* Validation of push certificate has been made more robust against
timing attacks.
(merge 719483e547 bc/constant-memequal later to maint).

* The custom hash function used by "git fast-import" has been
replaced with the one from hashmap.c, which gave us a nice
performance boost.
(merge d8410a816b jk/fast-import-use-hashmap later to maint).

* The "git submodule" command did not initialize a few variables it
internally uses and was affected by variable settings leaked from
the environment.
(merge 65d100c4dd lx/submodule-clear-variables later to maint).

* Raise the minimum required version of docbook-xsl package to 1.74,
as 1.74.0 was from late 2008, which is more than 10 years old, and
drop compatibility cruft from our documentation suite.
(merge 3c255ad660 ma/doc-discard-docbook-xsl-1.73 later to maint).

* "git log" learns "--[no-]mailmap" as a synonym to "--[no-]use-mailmap"
(merge 88acccda38 jc/log-no-mailmap later to maint).

* "git commit-graph write --expire-time=<timestamp>" did not use the
given timestamp correctly, which has been corrected.
(merge b09b785c78 ds/commit-graph-expiry-fix later to maint).

* Tests update to use "test-chmtime" instead of "touch -t".
(merge e892a56845 ds/t5319-touch-fix later to maint).

* "git diff" in a partial clone learned to avoid lazy loading blob
objects in more casese when they are not needed.
(merge 95acf11a3d jt/avoid-prefetch-when-able-in-diff later to maint).

* "git push --atomic" used to show failures for refs that weren't
even pushed, which has been corrected.
(merge dfe1b7f19c jx/atomic-push later to maint).

* Code in builtin/*, i.e. those can only be called from within
built-in subcommands, that implements bulk of a couple of
subcommands have been moved to libgit.a so that they could be used
by others.
(merge 9460fd48b5 dl/libify-a-few later to maint).

* Allowing the user to split a patch hunk while "git stash -p" does
not work well; a band-aid has been added to make this (partially)
work better.

* "git diff-tree --pretty --notes" used to hit an assertion failure,
as it forgot to initialize the notes subsystem.
(merge 5778b22b3d tb/diff-tree-with-notes later to maint).

* "git range-diff" fixes.
(merge 8d1675eb7f vd/range-diff-with-custom-pretty-format-fix later to maint).

* "git grep" did not quote a path with unusual character like other
commands (like "git diff", "git status") do, but did quote when run
from a subdirectory, both of which has been corrected.
(merge 45115d8490 mt/grep-cquote-path later to maint).

* GNU/Hurd is also among the ones that need the fopen() wrapper.
(merge 274a1328fb jc/gnu-hurd-lets-fread-read-dirs later to maint).

* Those fetching over protocol v2 from linux-next and other kernel
repositories are reporting that v2 often fetches way too much than
needed.
(merge 11c7f2a30b jn/demote-proto2-from-default later to maint).

* The upload-pack protocol v2 gave up too early before finding a
common ancestor, resulting in a wasteful fetch from a fork of a
project. This has been corrected to match the behaviour of v0
protocol.
(merge 2f0a093dd6 jt/v2-fetch-nego-fix later to maint).

* The build procedure did not use the libcurl library and its include
files correctly for a custom-built installation.
(merge 0573831950 jk/build-with-right-curl later to maint).

* Tighten "git mailinfo" to notice and error out when decoded result
contains NUL in it.
(merge 3919997447 dd/mailinfo-with-nul later to maint).

* Fix in-core inconsistency after fetching into a shallow repository
that broke the code to write out commit-graph.
(merge 37b9dcabfc tb/reset-shallow later to maint).

* The commit-graph code exhausted file descriptors easily when it
does not have to.
(merge c8828530b7 tb/commit-graph-fd-exhaustion-fix later to maint).

* The multi-pack-index left mmapped file descriptors open when it
does not have to.
(merge 6c7ff7cf7f ds/multi-pack-index later to maint).

* Recent update to Homebrew used by macOS folks breaks build by
moving gettext library and necessary headers.
(merge a0b3108618 ds/build-homebrew-gettext-fix later to maint).

* Incompatible options "--root" and "--fork-point" of "git rebase"
have been marked and documented as being incompatible.
(merge a35413c378 en/rebase-root-and-fork-point-are-incompatible later to maint).

* Error and verbose trace messages from "git push" did not redact
credential material embedded in URLs.
(merge d192fa5006 js/anonymise-push-url-in-errors later to maint).

* Update the parser used for credential.<URL>.<variable>
configuration, to handle <URL>s with '/' in them correctly.
(merge b44d0118ac bc/wildcard-credential later to maint).

* Recent updates broke parsing of "credential.<url>.<key>" where
<url> is not a full URL (e.g. [credential "https://"] helper = ...)
stopped working, which has been corrected.
(merge 9a121b0d22 js/partial-urlmatch-2.17 later to maint).
(merge cd93e6c029 js/partial-urlmatch later to maint).

* Some of the files commit-graph subsystem keeps on disk did not
correctly honor the core.sharedRepository settings and some were
left read-write.

* In error messages that "git switch" mentions its option to create a
new branch, "-b/-B" options were shown, where "-c/-C" options
should be, which has been corrected.
(merge 7c16ef7577 dl/switch-c-option-in-error-message later to maint).

* With the recent tightening of the code that is used to parse
various parts of a URL for use in the credential subsystem, a
hand-edited credential-store file causes the credential helper to
die, which is a bit too harsh to the users. Demote the error
behaviour to just ignore and keep using well-formed lines instead.
(merge c03859a665 cb/credential-store-ignore-bogus-lines later to maint).

* The samples in the credential documentation has been updated to
make it clear that we depict what would appear in the .git/config
file, by adding appropriate quotes as needed..
(merge 177681a07e jk/credential-sample-update later to maint).

* "git branch" and other "for-each-ref" variants accepted multiple
--sort=<key> options in the increasing order of precedence, but it
had a few breakages around "--ignore-case" handling, and tie-breaking
with the refname, which have been fixed.
(merge 7c5045fc18 jk/for-each-ref-multi-key-sort-fix later to maint).

* The coding guideline for shell scripts instructed to refer to a
variable with dollar-sign inside arithmetic expansion to work
around a bug in old versions of dash, which is a thing of the past.
Now we are not forbidden from writing $((var+1)).
(merge 32b5fe7f0e jk/arith-expansion-coding-guidelines later to maint).

* The <stdlib.h> header on NetBSD brings in its own definition of
hmac() function (eek), which conflicts with our own and unrelated
function with the same name. Our function has been renamed to work
around the issue.
(merge 3013118eb8 cb/avoid-colliding-with-netbsd-hmac later to maint).

* The basic test did not honor $TEST_SHELL_PATH setting, which has
been corrected.
(merge 0555e4af58 cb/t0000-use-the-configured-shell later to maint).

* Minor in-code comments and documentation updates around credential
API.
(merge 1aed817f99 cb/credential-doc-fixes later to maint).

* Teach "am", "commit", "merge" and "rebase", when they are run with
the "--quiet" option, to pass "--quiet" down to "gc --auto".
(merge 7c3e9e8cfb jc/auto-gc-quiet later to maint).

* The code to skip unmerged paths in the index when sparse checkout
is in use would have made out-of-bound access of the in-core index
when the last path was unmerged, which has been corrected.

* Serving a "git fetch" client over "git://" and "ssh://" protocols
using the on-wire protocol version 2 was buggy on the server end
when the client needs to make a follow-up request to
e.g. auto-follow tags.
(merge 08450ef791 cc/upload-pack-v2-fetch-fix later to maint).

* "git bisect replay" had trouble with input files when they used
CRLF line ending, which has been corrected.
(merge 6c722cbe5a cw/bisect-replay-with-dos later to maint).

* "rebase -i" segfaulted when rearranging a sequence that has a
fix-up that applies another fix-up (which may or may not be a
fix-up of yet another step).
(merge 02471e7e20 js/rebase-autosquash-double-fixup-fix later to maint).

* "git fsck" ensures that the paths recorded in tree objects are
sorted and without duplicates, but it failed to notice a case where
a blob is followed by entries that sort before a tree with the same
name. This has been corrected.
(merge 9068cfb20f rs/fsck-duplicate-names-in-trees later to maint).

* Code clean-up by removing a compatibility implementation of a
function we no longer use.
(merge 84b0115f0d cb/no-more-gmtime later to maint).

* When a binary file gets modified and renamed on both sides of history
to different locations, both files would be written to the working
tree but both would have the contents from "ours". This has been
corrected so that the path from each side gets their original content.

* Fix for a copy-and-paste error introduced during 2.20 era.
(merge e68a5272b1 ds/multi-pack-verify later to maint).

* Update an unconditional use of "grep -a" with a perl script in a test.
(merge 1eb7371236 dd/t5703-grep-a-fix later to maint).

* Other code cleanup, docfix, build fix, etc.
(merge 564956f358 jc/maintain-doc later to maint).
(merge 7422b2a0a1 sg/commit-slab-clarify-peek later to maint).
(merge 9c688735f6 rs/doc-passthru-fetch-options later to maint).
(merge 757c2ba3e2 en/oidset-uninclude-hashmap later to maint).
(merge 8312aa7d74 jc/config-tar later to maint).
(merge d00a5bdd50 ss/submodule-foreach-cb later to maint).
(merge 64d1022e14 ar/test-style-fixes later to maint).
(merge 4a465443a6 ds/doc-clone-filter later to maint).
(merge bb2dbe301b jk/t3419-drop-expensive-tests later to maint).
(merge d3507cc712 js/test-junit-finalization-fix later to maint).
(merge 2149b6748f bc/faq later to maint).
(merge 12dc0879f1 jk/test-cleanup later to maint).
(merge 344420bf0f pb/rebase-doc-typofix later to maint).
(merge 7cd54d37dc dl/wrapper-fix-indentation later to maint).
(merge 78725ebda9 jc/allow-strlen-substitution-in-shell-scripts later to maint).
(merge 2ecfcdecc6 jm/gitweb-fastcgi-utf8 later to maint).
(merge 0740d0a5d3 jk/oid-array-cleanups later to maint).
(merge a1aba0c95c js/t0007-typofix later to maint).
(merge 76ba7fa225 ma/config-doc-fix later to maint).
(merge 826f0c0df2 js/subtree-doc-update-to-asciidoctor-2 later to maint).
(merge 88eaf361e0 eb/mboxrd-doc later to maint).
(merge 051cc54941 tm/zsh-complete-switch-restore later to maint).
(merge 39102cf4fe ms/doc-revision-illustration-fix later to maint).
(merge 4d9378bfad eb/gitweb-more-trailers later to maint).
(merge bdccbf7047 mt/doc-worktree-ref later to maint).
(merge ce9baf234f dl/push-recurse-submodules-fix later to maint).
(merge 4153274052 bc/doc-credential-helper-value later to maint).
(merge 5c7bb0146e jc/codingstyle-compare-with-null later to maint).

----------------------------------------------------------------

Changes since v2.26.0 are as follows:

Abhishek Kumar (1):
commit-slab-decl.h: update include guard

Alban Gruin (3):
sequencer: mark messages for translation
sequencer: don't abbreviate a command if it doesn't have a short form
t3432: test `--merge' with `rebase.abbreviateCommands = true', too

Alex Henrie (1):
pull: warn if the user didn't say whether to rebase or to merge

Alexandr Miloslavskiy (4):
set_git_dir: fix crash when used with real_path()
real_path: remove unsafe API
real_path_if_valid(): remove unsafe API
get_superproject_working_tree(): return strbuf

Andras Kucsma (1):
run-command: trigger PATH lookup properly on Cygwin

Andrei Rybak (2):
t9500: remove spaces after redirect operators
t: fix whitespace around &&

Andrew Oakley (1):
git-p4: recover from inconsistent perforce history

Ansgar Röber (1):
Subject: git-gui: fix syntax error because of missing semicolon

Ash Holland (1):
userdiff: support Markdown

Ben Keene (8):
git-p4: change the expansion test from basestring to list
git-p4: rewrite prompt to be Windows compatible
git-p4: create new function run_git_hook
git-p4: add p4-pre-submit exit text
git-p4: add --no-verify option
git-p4: restructure code in submit
git-p4: add p4 submit hooks
git-p4: add RCS keyword status message

Carlo Marcelo Arenas Belón (12):
credential-store: ignore bogus lines from store file
credential: update description for credential_from_url_gently
credential: correct order of parameters for credential_match
builtin/receive-pack: avoid generic function name hmac()
t/t0000-basic: make sure subtests also use TEST_SHELL_PATH
t/test_lib: avoid naked bash arrays in file_lineno
credential: update gitcredentials documentation
credential: document protocol updates
compat: remove gmtime
t4216: avoid unnecessary subshell in test_bloom_filters_not_used
t5520: avoid alternation in grep's BRE (not POSIX)
bisect: avoid tailing CR characters from revision in replay

Christian Couder (1):
upload-pack: clear filter_options for each v2 fetch command

Christopher Warrington (1):
bisect: allow CRLF line endings in "git bisect replay" input

Damien Robert (6):
midx.c: fix an integer underflow
doc: list all commands affected by submodule.recurse
doc: document --recurse-submodules for reset and restore
doc: explain how to deactivate submodule.recurse completely
doc: be more precise on (fetch|push).recurseSubmodules
doc: --recurse-submodules mostly applies to active submodules

Denton Liu (45):
Makefile: ASCII-sort += lists
t7600: use test_write_lines()
Lib-ify fmt-merge-msg
Lib-ify prune-packed
t5512: don't use `test_must_fail test_cmp`
t5512: stop losing git exit code in here-docs
t5512: stop losing return codes of git commands
t5550: simplify no matching line check
t5607: reorder `nongit test_must_fail`
t5612: don't use `test_must_fail test_cmp`
t5612: stop losing return codes of git commands
t5801: teach compare_refs() to accept !
wrapper: indent with tabs
sequencer: stop leaking buf
sequencer: make file exists check more efficient
sequencer: make read_oneliner() accept flags
sequencer: configurably warn on non-existent files
sequencer: make read_oneliner() extern
rebase: use read_oneliner()
sequencer: make apply_autostash() accept a path
sequencer: rename stash_sha1 to stash_oid
rebase: use apply_autostash() from sequencer.c
rebase: generify reset_head()
reset: extract reset_head() from rebase
rebase: extract create_autostash()
rebase: generify create_autostash()
sequencer: extract perform_autostash() from rebase
sequencer: unlink autostash in apply_autostash()
sequencer: implement save_autostash()
sequencer: implement apply_autostash_oid()
merge: teach --autostash option
t5520: make test_pull_autostash() accept expect_parent_num
pull: pass --autostash to merge
t6030: use test_path_is_missing()
t7408: replace incorrect uses of test_must_fail
t7508: don't use `test_must_fail test_cmp`
t9141: use test_path_is_missing()
t9160: use test_path_is_missing()
t9164: use test_must_fail only on git commands
t9819: don't use test_must_fail with p4
Use OPT_CALLBACK and OPT_CALLBACK_F
push: unset PARSE_OPT_OPTARG for --recurse-submodules
rebase: save autostash entry into stash reflog on --quit
switch: fix errors and comments related to -c and -C
Doc: reference the "stash list" in autostash docs

Derrick Stolee (27):
connected.c: reprepare packs for corner cases
config: set pack.useSparse=true by default
pack-objects: flip the use of GIT_TEST_PACK_SPARSE
clone: document --filter options
diff: halt tree-diff early after max_changes
dir: refactor treat_directory to clarify control flow
commit-graph: fix buggy --expire-time option
t5319: replace 'touch -m' with 'test-tool chmtime'
bloom: ignore renames when computing changed paths
revision: --show-pulls adds helpful merges
log-tree: make ref_filter_match() a helper method
log: add log.excludeDecoration config option
revision: complicated pathspecs disable filters
tests: write commit-graph with Bloom filters
blame: use changed-path Bloom filters
multi-pack-index: close file descriptor after mmap
bloom: fix whitespace around tab length
test-bloom: fix usage typo
sparse-checkout: stop blocking empty workdirs
unpack-trees: avoid array out-of-bounds error
multi-pack-index: respect repack.packKeptObjects=false
bloom: parse commit before computing filters
Documentation: changed-path Bloom filters use byte words
bloom: de-duplicate directory entries
bloom: use num_changes not nr for limit detection
progress: call trace2_region_leave() only after calling _enter()
fsck: use ERROR_MULTI_PACK_INDEX

Elijah Newren (39):
oidset: remove unnecessary include
unpack-trees: fix minor typo in comment
unpack-trees: remove unused error type
unpack-trees: simplify verify_absent_sparse()
unpack-trees: simplify pattern_list freeing
t1091: make some tests a little more defensive against failures
unpack-trees: allow check_updates() to work on a different index
unpack-trees: do not mark a dirty path with SKIP_WORKTREE
unpack-trees: pull sparse-checkout pattern reading into a new function
unpack-trees: add a new update_sparsity() function
sparse-checkout: use new update_sparsity() function
sparse-checkout: use improved unpack_trees porcelain messages
unpack-trees: move ERROR_WOULD_LOSE_SUBMODULE earlier
unpack-trees: rename ERROR_* fields meant for warnings to WARNING_*
unpack-trees: split display_error_msgs() into two
unpack-trees: make sparse path messages sound like warnings
unpack-trees: provide warnings on sparse updates for unmerged paths too
unpack-trees: failure to set SKIP_WORKTREE bits always just a warning
sparse-checkout: provide a new reapply subcommand
pull: avoid running both merge and rebase
t7063: more thorough status checking
t3000: add more testcases testing a variety of ls-files issues
dir: fix simple typo in comment
dir: consolidate treat_path() and treat_one_path()
dir: fix broken comment
dir: fix confusion based on variable tense
dir: replace exponential algorithm with a linear one
dir: include DIR_KEEP_UNTRACKED_CONTENTS handling in treat_directory()
dir: replace double pathspec matching with single in treat_directory()
Fix error-prone fill_directory() API; make it only return matches
completion: fix 'git add' on paths under an untracked directory
git-rebase.txt: add another hook to the hooks section, and explain more
sequencer: honor GIT_REFLOG_ACTION
rebase -i: mark commits that begin empty in todo editor
rebase: reinstate --no-keep-empty
rebase: fix an incompatible-options error message
rebase: display an error if --root and --fork-point are both provided
merge-recursive: fix rename/rename(1to2) for working tree with a binary
unpack-trees: also allow get_progress() to work on a different index

Emily Shaffer (8):
help: move list_config_help to builtin/help
bugreport: add tool to generate debugging info
bugreport: gather git version and build info
bugreport: add uname info
bugreport: add compiler info
bugreport: drop extraneous includes
bugreport: collect list of populated hooks
trace2: log progress time and throughput

Emma Brooks (3):
format-patch: teach --no-encode-email-headers
Documentation: explain "mboxrd" pretty format
gitweb: Recognize *-to and Closes/Fixes trailers

Eric Sunshine (1):
restore: default to HEAD when combining --staged and --worktree

Garima Singh (13):
commit-graph: define and use MAX_NUM_CHUNKS
bloom.c: add the murmur3 hash implementation
bloom.c: introduce core Bloom filter constructs
bloom.c: core Bloom filter implementation for changed paths.
commit-graph: compute Bloom filters for changed paths
commit-graph: examine commits by generation number
commit-graph: write Bloom filters to commit graph file
commit-graph: reuse existing Bloom filters during write
commit-graph: add --changed-paths option to write subcommand
revision.c: use Bloom filters to speed up path based revision walks
revision.c: add trace2 stats around Bloom filter usage
t4216: add end to end tests for git log with Bloom filters
commit-graph: add GIT_TEST_COMMIT_GRAPH_CHANGED_PATHS test flag

Greg Price (1):
tests: skip small-stack tests on hppa architecture

Hans Jerry Illikainen (2):
t: increase test coverage of signature verification output
gpg-interface: prefer check_signature() for GPG verification

Heba Waly (4):
advice: extract vadvise() from advise()
advice: change "setupStreamFailure" to "setUpstreamFailure"
advice: revamp advise API
tag: use new advice API to check visibility

Ismael Luceno (1):
git-gui: Handle Ctrl + BS/Del in the commit msg

Jeff King (51):
credential: avoid writing values with newlines
t/lib-credential: use test_i18ncmp to check stderr
credential: detect unrepresentable values when parsing urls
fsck: detect gitmodules URLs with embedded newlines
t3419: drop EXPENSIVE tests
t/lib-credential.sh: drop shebang line
t/lib-*.sh: drop executable bit
test-lib-functions: make packetize() more efficient
upload-pack: handle unexpected delim packets
p5310: stop timing non-bitmap pack-to-disk
Makefile: avoid running curl-config multiple times
Makefile: use curl-config --cflags
test-lib-functions: simplify packetize() stdin code
commit-graph: examine changed-path objects in pack order
oid_array: use size_t for count and allocation
oid_array: use size_t for iteration
oid_array: rename source file from sha1-array
test-tool: rename sha1-array to oid-array
bisect: stop referring to sha1_array
ref-filter: stop referring to "sha1 array"
oidset: stop referring to sha1-array
clone: use "quick" lookup while following tags
Makefile: avoid running curl-config unnecessarily
fast-import: replace custom hash with hashmap.c
repository: mark the "refs" pointer as private
remote: drop auto-strlen behavior of make_branch() and make_rewrite()
parse_config_key(): return subsection len as size_t
config: drop useless length variable in write_pair()
git_config_parse_key(): return baselen as size_t
config: use size_t to store parsed variable baselen
config: reject parsing of files over INT_MAX
credential: treat "?" and "#" in URLs as end of host
t0300: make "quit" helper more realistic
t0300: use more realistic inputs
credential: parse URL without host as empty host, not unset
credential: refuse to operate when missing host or protocol
credential: die() when parsing invalid urls
Git 2.17.5
blame: drop unused parameter from maybe_changed_path
test-bloom: fix some whitespace issues
test-bloom: check that we have expected arguments
commit-graph: close descriptors after mmap
t0000: disable GIT_TEST_FAIL_PREREQS in sub-tests
gitcredentials(7): clarify quoting of helper examples
gitcredentials(7): make shell-snippet example more realistic
CodingGuidelines: drop arithmetic expansion advice to use "$x"
ref-filter: apply --ignore-case to all sorting keys
ref-filter: apply fallback refname sort only after all user sorts
list-objects-filter: treat NULL filter_options as "disabled"
pack-bitmap: pass object filter to fill-in traversal
ci: allow per-branch config for GitHub Actions

Jessica Clarke (1):
config.mak.uname: Define FREAD_READS_DIRECTORIES for GNU/Hurd

Jiang Xin (5):
send-pack: fix inconsistent porcelain output
t5543: never report what we do not push
send-pack: mark failure of atomic push properly
transport-helper: mark failure for atomic push
transport-helper: new method reject_atomic_push()

Johannes Schindelin (37):
cherry-pick: add test for `--skip` advice in `git commit`
tests(junit-xml): avoid invalid XML
import-tars: ignore the global PAX header
tests(gpg): allow the gpg-agent to start on Windows
t/lib-gpg.sh: stop pretending to be a stand-alone script
tests: do not let lazy prereqs inside `test_expect_*` turn off tracing
tests: turn GPG, GPGSM and RFC1991 into lazy prereqs
tests: increase the verbosity of the GPG-related prereqs
MyFirstObjectWalk: remove unnecessary conditional statement
t0007: fix a typo
ci/lib: if CI type is unknown, show the environment variables
ci/lib: allow running in GitHub Actions
ci: fix the `jobname` of the `GETTEXT_POISON` job
subtree: fix build with AsciiDoctor 2
mingw: do not treat `COM0` as a reserved file name
t3904: fix incorrect demonstration of a bug
stash -p: (partially) fix bug concerning split hunks
mingw: help debugging by optionally executing bash with strace
interactive: refactor code asking the user for interactive input
ci: run gem with sudo to install asciidoctor
README: add a build badge for the GitHub Actions runs
ci: retire the Azure Pipelines definition
tests: when run in Bash, annotate test failures with file name/line number
ci: add a problem matcher for GitHub Actions
ci: let GitHub Actions upload failed tests' directories
t: consolidate the `is_hidden` functions
mingw: make test_path_is_hidden more robust
t: restrict `is_hidden` to be called only on Windows
credential: fix grammar
credential: optionally allow partial URLs in credential_from_url_gently()
credential: optionally allow partial URLs in credential_from_url_gently()
credential: handle `credential.<partial-URL>.<key>` again
macOS/brew: let the build find gettext headers/libraries/msgfmt
push: anonymize URLs in error messages and warnings
credential: handle `credential.<partial-URL>.<key>` again
rebase --autosquash: fix a potential segfault
ci: avoid pounding on the poor ci-artifacts container

Jonathan Nieder (5):
fsck: convert gitmodules url to URL passed to curl
credential: treat URL without scheme as invalid
credential: treat URL with empty scheme as invalid
fsck: reject URL with empty host in .gitmodules
Revert "fetch: default to protocol version 2"

Jonathan Tan (12):
connected: always use partial clone optimization
promisor-remote: accept 0 as oid_nr in function
diff: make diff_populate_filespec_options struct
diff: refactor object read
diff: restrict when prefetching occurs
rebase --merge: optionally skip upstreamed commits
fetch-pack: return enum from process_acks()
fetch-pack: in protocol v2, in_vain only after ACK
fetch-pack: in protocol v2, reset in_vain upon ACK
commit-graph: avoid memory leaks
t5500: count objects through stderr, not trace
t4067: make rename detection test output raw diff

Jorge Lopez Silva (2):
http: add client cert support for HTTPS proxies
http: add environment variable support for HTTPS proxies

Josh Steadmon (1):
trace2: teach Git to log environment variables

Julien Moutinho (1):
gitweb: fix UTF-8 encoding when using CGI::Fast

Junio C Hamano (33):
rebase: --fork-point regression fix
describe: force long format for a name based on a mislocated tag
update how-to-maintain-git
parse-options: teach "git cmd -h" to show alias as alias
clone: reorder --recursive/--recurse-submodules
log: give --[no-]use-mailmap a more sensible synonym --[no-]mailmap
Git 2.17.4
separate tar.* config to its own source file
The first batch post 2.26 cycle
The second batch post 2.26 cycle
t/README: suggest how to leave test early with failure
CodingGuidelines: allow ${#posix} == strlen($posix)
sha1-name: do not assume that the ref store is initialized
receive-pack: compilation fix
The third batch
The fourth batch
credential-store: document the file format a bit more
Revert "commit-graph.c: introduce '--[no-]check-oids'"
The fifth batch
The sixth batch
The seventh batch
auto-gc: extract a reusable helper from "git fetch"
auto-gc: pass --quiet down from am, commit, merge and rebase
CodingGuidelines: do not ==/!= compare with 0 or '\0' or NULL
The eighth batch
The ninth batch
Git 2.27-rc0
Revert "t/test_lib: avoid naked bash arrays in file_lineno"
Revert "ci: add a problem matcher for GitHub Actions"
Revert "tests: when run in Bash, annotate test failures with file name/line number"
Git 2.27-rc1
Hopefully final batch before 2.27-rc2
Git 2.27-rc2

Li Xuejiang (1):
git-submodule.sh: setup uninitialized variables

Martin Ågren (14):
Doc: drop support for docbook-xsl before 1.71.1
Doc: drop support for docbook-xsl before 1.72.0
Doc: drop support for docbook-xsl before 1.73.0
manpage-bold-literal.xsl: stop using git.docbook.backslash
manpage-normal.xsl: fold in manpage-base.xsl
INSTALL: drop support for docbook-xsl before 1.74
user-manual.conf: don't specify [listingblock]
config.txt: move closing "----" to cover entire listing
merge: use skip_prefix to parse config key
date-formats.txt: fix list continuation
git-commit-graph.txt: fix grammo
git-commit-graph.txt: fix list rendering
git-credential.txt: use list continuation
git-sparse-checkout.txt: add missing '

Matheus Tavares (3):
test-lib: allow short options to be bundled
grep: follow conventions for printing paths w/ unusual chars
config doc: fix reference to config.worktree info

Matthias Aßhauer (1):
mingw: use modern strftime implementation if possible

Michael F. Schönitzer (1):
docs: fix minor glitch in illustration

Nathan Sanders (1):
mingw: cope with the Isilon network file system

Patrick Steinhardt (9):
refs: fix segfault when aborting empty transaction
git-update-ref.txt: add missing word
strbuf: provide function to append whole lines
update-ref: organize commands in an array
update-ref: drop unused argument for `parse_refname`
update-ref: pass end pointer instead of strbuf
update-ref: move transaction handling into `update_refs_stdin()`
update-ref: read commands in a line-wise fashion
update-ref: implement interactive transaction handling

Philippe Blain (10):
t7112: remove mention of KNOWN_FAILURE_SUBMODULE_RECURSIVE_NESTED
t/lib-submodule-update: remove outdated test description
t/lib-submodule-update: move a test to the right section
unpack-trees: remove outdated description for verify_clean_submodule
unpack-trees: check for missing submodule directory in merged_entry
t/lib-submodule-update: add test removing nested submodules
git-rebase.txt: fix typo
pull doc: refer to a specific section in 'fetch' doc
pull doc: correct outdated description of an example
command-list.txt: add gitfaq to the list of guides

Phillip Wood (6):
t3404: use test_cmp_rev
cherry-pick: check commit error messages
sequencer: write CHERRY_PICK_HEAD for reword and edit
commit: use enum value for multiple cherry-picks
commit: encapsulate determine_whence() for sequencer
commit: give correct advice for empty commit during a rebase

René Scharfe (4):
pull: document more passthru options
pull: remove --update-head-ok from documentation
pull: pass documented fetch options on
fsck: report non-consecutive duplicate names in trees

SZEDER Gábor (4):
ci: use python3 in linux-gcc and osx-gcc and python2 elsewhere
commit-slab: clarify slabname##_peek()'s return value
ci: make MAKEFLAGS available inside the Docker container in the Linux32 job
completion: offer '--(no-)patch' among 'git log' options

Shourya Shukla (4):
submodule--helper.c: Rename 'cb_foreach' to 'foreach_cb'
gitfaq: files in .gitignore are tracked
gitfaq: fetching and pulling a repository
submodule: port subcommand 'set-url' from shell to C

Son Luong Ngoc (1):
midx: teach "git multi-pack-index repack" honor "git repack" configurations

Taylor Blau (24):
t/helper/test-read-graph.c: support commit-graph chains
builtin/commit-graph.c: support for '--split[=<strategy>]'
builtin/commit-graph.c: introduce split strategy 'no-merge'
builtin/commit-graph.c: introduce split strategy 'replace'
oidset: introduce 'oidset_size'
commit-graph.h: replace 'commit_hex' with 'commits'
commit-graph.c: introduce '--[no-]check-oids'
diff-tree.c: load notes machinery when required
commit-graph.c: don't use discarded graph_name in error
t/test-lib.sh: make ULIMIT_FILE_DESCRIPTORS available to tests
commit-graph.c: gracefully handle file descriptor exhaustion
t5537: use test_write_lines and indented heredocs for readability
shallow.c: use '{commit,rollback}_shallow_file'
tempfile.c: introduce 'create_tempfile_mode'
lockfile.c: introduce 'hold_lock_file_for_update_mode'
commit-graph.c: write non-split graphs as read-only
commit-graph.c: ensure graph layers respect core.sharedRepository
commit-graph.c: make 'commit-graph-chain's read-only
commit: make 'commit_graft_pos' non-static
shallow: extract a header file for shallow-related functions
shallow.h: document '{commit,rollback}_shallow_file'
shallow: use struct 'shallow_lock' for additional safety
pack-bitmap.c: make object filtering functions generic
pack-bitmap.c: support 'tree:0' filtering

Terry Moschou (1):
complete: zsh: add missing sub cmd completion candidates

Thomas Gummerer (2):
stash: get git_stash_config at the top level
stash: remove the stash.useBuiltin setting

Todd Zullinger (2):
git-bugreport.txt: adjust reference to strftime(3)
gitfaq: avoid validation error with older asciidoc

Vasil Dimov (2):
range-diff: fix a crash in parsing git-log output
range-diff: avoid negative string precision

Yang Zhao (12):
git-p4: make python2.7 the oldest supported version
git-p4: remove string type aliasing
git-p4: encode/decode communication with p4 for python3
git-p4: encode/decode communication with git for python3
git-p4: convert path to unicode before processing them
git-p4: open .gitp4-usercache.txt in text mode
git-p4: use marshal format version 2 when sending to p4
git-p4: fix freezing while waiting for fast-import progress
git-p4: use functools.reduce instead of reduce
git-p4: use dict.items() iteration for python3 compatibility
git-p4: simplify regex pattern generation for parsing diff-tree
git-p4: use python3's input() everywhere

brian m. carlson (34):
builtin/pack-objects: make hash agnostic
hash: implement and use a context cloning function
hex: introduce parsing variants taking hash algorithms
hex: add functions to parse hex object IDs in any algorithm
repository: require a build flag to use SHA-256
t: use hash-specific lookup tables to define test constants
t6300: abstract away SHA-1-specific constants
t6300: make hash algorithm independent
t/helper/test-dump-split-index: initialize git repository
t/helper: initialize repository if necessary
t/helper: make repository tests hash independent
setup: allow check_repository_format to read repository format
builtin/init-db: allow specifying hash algorithm on command line
builtin/init-db: add environment variable for new repo hash
init-db: move writing repo version into a function
worktree: allow repository version 1
commit: use expected signature header for SHA-256
fast-import: permit reading multiple marks files
fast-import: add helper function for inserting mark object entries
fast-import: make find_marks work on any mark set
fast-import: add a generic function to iterate over marks
fast-import: add options for rewriting submodules
builtin/checkout: pass branch info down to checkout_worktree
convert: permit passing additional metadata to filter processes
convert: provide additional metadata to filters
builtin/checkout: compute checkout metadata for checkouts
builtin/clone: compute checkout metadata for clones
builtin/rebase: compute checkout metadata for rebases
builtin/reset: compute checkout metadata for reset
t0021: test filter metadata for additional cases
docs: add a FAQ
builtin/receive-pack: use constant-time comparison for HMAC value
credential: fix matching URLs with multiple levels in path
docs: document credential.helper allowed values

luciano.rocha@booking.com (1):
freshen_file(): use NULL `times' for implicit current-time

Đoàn Trần Công Danh (36):
t4061: use POSIX compliant regex(7)
test-lib-functions: test_cmp: eval $GIT_TEST_CMP
t5003: drop the subshell in test_lazy_prereq
t5003: skip conversion test if unzip -a is unavailable
t5616: use rev-parse instead to get HEAD's object_id
t7063: drop non-POSIX argument "-ls" from find(1)
t4124: tweak test so that non-compliant diff(1) can also be used
t5703: feed raw data into test-tool unpack-sideband
rebase.c: honour --no-gpg-sign
cherry-pick/revert: honour --no-gpg-sign in all case
Documentation: document am --no-gpg-sign
Documentation: reword commit --no-gpg-sign
Documentation: merge commit-tree --[no-]gpg-sign
Documentation: document merge option --no-gpg-sign
ci/lib-docker: preserve required environment variables
ci/linux32: parameterise command to switch arch
ci: refactor docker runner script
ci/linux32: libify install-dependencies step
travis: build and test on Linux with musl libc and busybox
ci/lib: set TERM environment variable if not exist
ci: explicit install all required packages
ci: configure GitHub Actions for CI/PR
t4254: merge 2 steps of a single test
mailinfo.c: avoid strlen on strings that can contains NUL
mailinfo: disallow NUL character in mail's header
date.c: s/is_date/set_date/
date.c: validate and set time in a helper function
date.c: skip fractional second part of ISO-8601
date.c: allow compact version of ISO-8601 datetime
test-parse-pathspec-file.c: s/0/NULL/ for pointer type
compat/regex: move stdlib.h up in inclusion chain
graph.c: limit linkage of internal variable
progress.c: silence cgcc suggestion about internal linkage
bloom: fix `make sparse` warning
t1509: correct i18n test
t5703: replace "grep -a" usage by perl

마누엘 (1):
interactive: explicitly `fflush` stdout before expecting input

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