335 lines
13 KiB
Plaintext
335 lines
13 KiB
Plaintext
Git v2.44 Release Notes
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=======================
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Backward Compatibility Notes
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* "git checkout -B <branch>" used to allow switching to a branch that
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is in use on another worktree, but this was by mistake. The users
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need to use "--ignore-other-worktrees" option.
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UI, Workflows & Features
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* "git add" and "git stash" learned to support the ":(attr:...)"
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magic pathspec.
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* "git rebase --autosquash" is now enabled for non-interactive rebase,
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but it is still incompatible with the apply backend.
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* Introduce "git replay", a tool meant on the server side without
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working tree to recreate a history.
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* "git merge-file" learned to take the "--diff-algorithm" option to
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use algorithm different from the default "myers" diff.
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* Command line completion (in contrib/) learned to complete path
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arguments to the "add/set" subcommands of "git sparse-checkout"
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better.
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* "git checkout -B <branch> [<start-point>]" allowed a branch that is
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in use in another worktree to be updated and checked out, which
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might be a bit unexpected. The rule has been tightened, which is a
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breaking change. "--ignore-other-worktrees" option is required to
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unbreak you, if you are used to the current behaviour that "-B"
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overrides the safety.
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* The builtin_objectmode attribute is populated for each path
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without adding anything in .gitattributes files, which would be
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useful in magic pathspec, e.g., ":(attr:builtin_objectmode=100755)"
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to limit to executables.
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* "git fetch" learned to pay attention to "fetch.all" configuration
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variable, which pretends as if "--all" was passed from the command
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line when no remote parameter was given.
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* In addition to (rather cryptic) Security Identifiers, show username
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and domain in the error message when we barf on mismatch between
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the Git directory and the current user on Windows.
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* The error message given when "git branch -d branch" fails due to
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commits unique to the branch has been split into an error and a new
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conditional advice message.
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* When given an existing but unreadable file as a configuration file,
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gitweb behaved as if the file did not exist at all, but now it
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errors out. This is a change that may break backward compatibility.
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* When $HOME/.gitconfig is missing but XDG config file is available, we
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should write into the latter, not former. "git gc" and "git
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maintenance" wrote into a wrong "global config" file, which have
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been corrected.
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* Define "special ref" as a very narrow set that consists of
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FETCH_HEAD and MERGE_HEAD, and clarify everything else that used to
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be classified as such are actually just pseudorefs.
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* All conditional "advice" messages show how to turn them off, which
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becomes repetitive. Setting advice.* configuration explicitly on
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now omits the instruction part.
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* The "disable repository discovery of a bare repository" check,
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triggered by setting safe.bareRepository configuration variable to
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'explicit', has been loosened to exclude the ".git/" directory inside
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a non-bare repository from the check. So you can do "cd .git &&
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git cmd" to run a Git command that works on a bare repository without
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explicitly specifying $GIT_DIR now.
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* The completion script (in contrib/) learned more options that can
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be used with "git log".
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* The labels on conflict markers for the common ancestor, our version,
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and the other version are available to custom 3-way merge driver
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via %S, %X, and %Y placeholders.
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* The write codepath for the reftable data learned to honor
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core.fsync configuration.
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* The "--fsck-objects" option of "git index-pack" now can take the
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optional parameter to tweak severity of different fsck errors.
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* The wincred credential backend has been taught to support oauth
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refresh token the same way as credential-cache and
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credential-libsecret backends.
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* Command line completion support (in contrib/) has been
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updated for "git bisect".
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* "git branch" and friends learned to use the formatted text as
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sorting key, not the underlying timestamp value, when the --sort
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option is used with author or committer timestamp with a format
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specifier (e.g., "--sort=creatordate:format:%H:%M:%S").
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* The command line completion script (in contrib/) learned to
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complete configuration variable names better.
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Performance, Internal Implementation, Development Support etc.
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* Process to add some form of low-level unit tests has started.
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* Add support for GitLab CI.
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* "git for-each-ref --no-sort" still sorted the refs alphabetically
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which paid non-trivial cost. It has been redefined to show output
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in an unspecified order, to allow certain optimizations to take
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advantage of.
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* Simplify API implementation to delete references by eliminating
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duplication.
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* Subject approxidate() and show_date() machinery to OSS-Fuzz.
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* A new helper to let us pretend that we called lstat() when we know
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our cache_entry is up-to-date via fsmonitor.
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* The optimization based on fsmonitor in the "diff --cached"
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codepath is resurrected with the "fake-lstat" introduced earlier.
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* Test balloon to use C99 "bool" type from <stdbool.h> has been
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added.
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* "git clone" has been prepared to allow cloning a repository with
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non-default hash function into a repository that uses the reftable
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backend.
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* Streaming spans of packfile data used to be done only from a
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single, primary, pack in a repository with multiple packfiles. It
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has been extended to allow reuse from other packfiles, too.
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* Comment updates to help developers not to attempt to modify
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messages from plumbing commands that must stay constant.
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It might make sense to reassess the plumbing needs every few years,
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but that should be done as a separate effort.
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* Move test-ctype helper to the unit-test framework.
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* Instead of manually creating refs/ hierarchy on disk upon a
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creation of a secondary worktree, which is only usable via the
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files backend, use the refs API to populate it.
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* CI for GitLab learned to drive macOS jobs.
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* A few tests to "git commit -o <pathspec>" and "git commit -i
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<pathspec>" has been added.
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* Tests on ref API are moved around to prepare for reftable.
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* The Makefile often had to say "-L$(path) -R$(path)" that repeats
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the path to the same library directory for link time and runtime.
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A Makefile template is used to reduce such repetition.
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* The priority queue test has been migrated to the unit testing
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framework.
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* Setting `feature.experimental` opts the user into multi-pack reuse
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experiment
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* Squelch node.js 16 deprecation warnings from GitHub Actions CI
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by updating actions/github-script and actions/checkout that use
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node.js 20.
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* The mechanism to report the filename in the source code, used by
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the unit-test machinery, assumed that the compiler expanded __FILE__
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to the path to the source given to the $(CC), but some compilers
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give full path, breaking the output. This has been corrected.
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Fixes since v2.43
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-----------------
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* The way CI testing used "prove" could lead to running the test
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suite twice needlessly, which has been corrected.
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* Update ref-related tests.
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* "git format-patch --encode-email-headers" ignored the option when
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preparing the cover letter, which has been corrected.
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* Newer versions of Getopt::Long started giving warnings against our
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(ab)use of it in "git send-email". Bump the minimum version
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requirement for Perl to 5.8.1 (from September 2002) to allow
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simplifying our implementation.
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* Earlier we stopped relying on commit-graph that (still) records
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information about commits that are lost from the object store,
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which has negative performance implications. The default has been
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flipped to disable this pessimization.
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* Stale URLs have been updated to their current counterparts (or
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archive.org) and HTTP links are replaced with working HTTPS links.
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* trace2 streams used to record the URLs that potentially embed
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authentication material, which has been corrected.
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* The sample pre-commit hook that tries to catch introduction of new
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paths that use potentially non-portable characters did not notice
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an existing path getting renamed to such a problematic path, when
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rename detection was enabled.
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* The command line parser for the "log" family of commands was too
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loose when parsing certain numbers, e.g., silently ignoring the
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extra 'q' in "git log -n 1q" without complaining, which has been
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tightened up.
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* "git $cmd --end-of-options --rev -- --path" for some $cmd failed
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to interpret "--rev" as a rev, and "--path" as a path. This was
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fixed for many programs like "reset" and "checkout".
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* "git bisect reset" has been taught to clean up state files and refs
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even when BISECT_START file is gone.
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* Some codepaths did not correctly parse configuration variables
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specified with valueless "true", which has been corrected.
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* Code clean-up for sanity checking of command line options for "git
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show-ref".
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* The code to parse the From e-mail header has been updated to avoid
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recursion.
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* "git fetch --atomic" issued an unnecessary empty error message,
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which has been corrected.
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* Command line completion script (in contrib/) learned to work better
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with the reftable backend.
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* "git status" is taught to show both the branch being bisected and
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being rebased when both are in effect at the same time.
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* "git archive --list extra garbage" silently ignored excess command
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line parameters, which has been corrected.
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* "git sparse-checkout set" added default patterns even when the
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patterns are being fed from the standard input, which has been
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corrected.
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* "git sparse-checkout (add|set) --[no-]cone --end-of-options" did
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not handle "--end-of-options" correctly after a recent update.
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* Unlike other environment variables that took the usual
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true/false/yes/no as well as 0/1, GIT_FLUSH only understood 0/1,
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which has been corrected.
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* Clearing in-core repository (happens during e.g., "git fetch
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--recurse-submodules" with commit graph enabled) made in-core
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commit object in an inconsistent state by discarding the necessary
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data from commit-graph too early, which has been corrected.
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* Update to a new feature recently added, "git show-ref --exists".
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* oss-fuzz tests are built and run in CI.
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(merge c4a9cf1df3 js/oss-fuzz-build-in-ci later to maint).
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* Rename detection logic ignored the final line of a file if it is an
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incomplete line.
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* GitHub CI update.
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(merge 0188b2c8e0 pb/ci-github-skip-logs-for-broken-tests later to maint).
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* "git diff --no-rename A B" did not disable rename detection but did
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not trigger an error from the command line parser.
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* "git archive --remote=<remote>" learned to talk over the smart
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http (aka stateless) transport.
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(merge 176cd68634 jx/remote-archive-over-smart-http later to maint).
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* Fetching via protocol v0 over Smart HTTP transport sometimes failed
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to correctly auto-follow tags.
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(merge fba732c462 jk/fetch-auto-tag-following-fix later to maint).
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* The documentation for the --exclude-per-directory option marked it
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as deprecated, which confused readers into thinking there may be a
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plan to remove it in the future, which was not our intention.
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(merge 0009542cab jc/ls-files-doc-update later to maint).
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* "git diff --no-index file1 file2" segfaulted while invoking the
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external diff driver, which has been corrected.
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* Rewrite //-comments to /* comments */ in files whose comments
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prevalently use the latter.
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* Cirrus CI jobs started breaking because we specified version of
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FreeBSD that is no longer available, which has been corrected.
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(merge 81fffb66d3 cb/use-freebsd-13-2-at-cirrus-ci later to maint).
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* A caller called index_file_exists() that takes a string expressed
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as <ptr, length> with a wrong length, which has been corrected.
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(merge 156e28b36d jh/sparse-index-expand-to-path-fix later to maint).
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* A failed "git tag -s" did not necessarily result in an error
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depending on the crypto backend, which has been corrected.
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* "git stash" sometimes was silent even when it failed due to
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unwritable index file, which has been corrected.
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* "git show-ref --verify" did not show things like "CHERRY_PICK_HEAD",
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which has been corrected.
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* Recent conversion to allow more than 0/1 in GIT_FLUSH broke the
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mechanism by flipping what yes/no means by mistake, which has been
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corrected.
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* The sequencer machinery does not use the ref API and instead
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records names of certain objects it needs for its correct operation
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in temporary files, which makes these objects susceptible to loss
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by garbage collection. These temporary files have been added as
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starting points for reachability analysis to fix this.
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(merge bc7f5db896 pw/gc-during-rebase later to maint).
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* "git cherry-pick" invoked during "git rebase -i" session lost
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the authorship information, which has been corrected.
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(merge e4301f73ff vn/rebase-with-cherry-pick-authorship later to maint).
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* The code paths that call repo_read_object_file() have been
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tightened to react to errors.
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(merge 568459bf5e js/check-null-from-read-object-file later to maint).
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* Other code cleanup, docfix, build fix, etc.
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(merge 5aea3955bc rj/clarify-branch-doc-m later to maint).
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(merge 9cce3be2df bk/bisect-doc-fix later to maint).
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(merge 8430b438f6 vd/fsck-submodule-url-test later to maint).
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(merge 3cb4384683 jc/t0091-with-unknown-git later to maint).
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(merge 020456cb74 rs/receive-pack-remove-find-header later to maint).
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(merge bc47139f4f la/trailer-cleanups later to maint).
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