342 lines
14 KiB
Plaintext
342 lines
14 KiB
Plaintext
Git v2.51 Release Notes
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=======================
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UI, Workflows & Features
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------------------------
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* Userdiff patterns for the R language have been added.
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* Documentation for "git send-email" has been updated with a bit more
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credential helper and OAuth information.
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* "git cat-file --batch" learns to understand %(objectmode) atom to
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allow the caller to tell missing objects (due to repository
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corruption) and submodules (whose commit objects are OK to be
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missing) apart.
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* "git diff --no-index dirA dirB" can limit the comparison with
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pathspec at the end of the command line, just like normal "git
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diff".
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* "git subtree" (in contrib/) learned to grok GPG signing its commits.
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* "git whatchanged" that is longer to type than "git log --raw"
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which is its modern rough equivalent has outlived its usefulness
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more than 10 years ago. Plan to deprecate and remove it.
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* An interchange format for stash entries is defined, and subcommand
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of "git stash" to import/export has been added.
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* "git merge/pull" has been taught the "--compact-summary" option to
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use the compact-summary format, intead of diffstat, when showing
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the summary of the incoming changes.
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* "git imap-send" has been broken for a long time, which has been
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resurrected and then taught to talk OAuth2.0 etc.
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* Some error messages from "git imap-send" has been updated.
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* When "git daemon" sees a signal while attempting to accept() a new
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client, instead of retrying, it skipped it by mistake, which has
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been corrected.
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* The reftable ref backend has matured enough; Git 3.0 will make it
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the default format in a newly created repositories by default.
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* "netrc" credential helper has been improved to understand textual
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service names (like smtp) in addition to the numeric port numbers
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(like 25).
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* Lift the limitation to use changed-path filter in "git log" so that
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it can be used for a pathspec with multiple literal paths.
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* Clean up the way how signature on commit objects are exported to
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and imported from fast-import stream.
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* Remove unsupported, unused, and unsupportable old option from "git
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log".
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* Document recently added "git imap-send --list" with an example.
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* "git pull" learned to pay attention to pull.autostash configuration
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variable, which overrides rebase/merge.autostash.
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* "git for-each-ref" learns "--start-after" option to help
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applications that want to page its output.
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* "git switch" and "git restore" are declared to be no longer
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experimental.
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* "git -c alias.foo=bar foo -h baz" reported "'foo' is aliased to
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'bar'" and then went on to run "git foo -h baz", which was
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unexpected. Tighten the rule so that alias expansion is reported
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only when "-h" is the sole option.
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Performance, Internal Implementation, Development Support etc.
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--------------------------------------------------------------
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* "git pack-objects" learned to find delta bases from blobs at the
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same path, using the --path-walk API.
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* CodingGuidelines update.
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* Add settings for Solaris 10 & 11.
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* Meson-based build/test framework now understands TAP output
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generated by our tests.
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* "Do not explicitly initialize to zero" rule has been clarified in
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the CodingGuidelines document.
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* A test helper "test_seq" function learned the "-f <fmt>" option,
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which allowed us to simplify a lot of test scripts.
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* A lot of stale stuff has been removed from the contrib/ hierarchy.
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* "git push" and "git fetch" are taught to update refs in batches to
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gain performance.
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* Some code paths in "git prune" used to ignore the passed-in
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repository object and used the `the_repository` singleton instance
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instead, which has been corrected.
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* Update ".clang-format" and ".editorconfig" to match our style guide
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a bit better.
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* "make coccicheck" succeeds even when spatch made suggestions, which
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has been updated to fail in such a case.
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* Code clean-up around object access API.
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* Define .precision to more canned parse-options type to avoid bugs
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coming from using a variable with a wrong type to capture the
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parsed values.
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* Flipping the default hash function to SHA-256 at Git 3.0 boundary
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is planned.
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* Declare weather-balloon we raised for "bool" type 18 months ago a
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success and officially allow using the type in our codebase.
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* GIT_TEST_INSTALLED was not honored in the recent topic related to
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SHA256 hashes, which has been corrected.
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* The pop_most_recent_commit() function can have quite expensive
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worst case performance characteristics, which has been optimized by
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using prio-queue data structure.
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* Move structure definition from unrelated header file to where it
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belongs.
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* To help our developers, document what C99 language features are
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being considered for adoption, in addition to what past experiments
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have already decided.
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* The reftable unit tests are now ported to the "clar" unit testing
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framework.
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* Redefine where the multi-pack-index sits in the object subsystem,
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which recently was restructured to allow multiple backends that
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support a single object source that belongs to one repository. A
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MIDX does span multiple "object sources".
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* Reduce implicit assumption and dependence on the_repository in the
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object-file subsystem.
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Fixes since v2.50
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-----------------
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Unless otherwise noted, all the changes in 2.50.X maintenance track,
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including security updates, are included in this release.
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* A memory-leak in an error code path has been plugged.
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(merge 7082da85cb ly/commit-graph-graph-write-leakfix later to maint).
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* A memory-leak in an error code path has been plugged.
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(merge aedebdb6b9 ly/fetch-pack-leakfix later to maint).
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* Some leftover references to documentation source files that no
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longer exist, due to recent ".txt" -> ".adoc" renaming, have been
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corrected.
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(merge 3717a5775a jw/doc-txt-to-adoc-refs later to maint).
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* "git stash -p <pathspec>" improvements.
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(merge 468817bab2 pw/stash-p-pathspec-fixes later to maint).
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* "git send-email" incremented its internal message counter when a
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message was edited, which made logic that treats the first message
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specially misbehave, which has been corrected.
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(merge 2cc27b3501 ag/send-email-edit-threading-fix later to maint).
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* "git stash" recorded a wrong branch name when submodules are
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present in the current checkout, which has been corrected.
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(merge ffb36c64f2 kj/stash-onbranch-submodule-fix later to maint).
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* When asking to apply mailmap to both author and committer field
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while showing a commit object, the field that appears later was not
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correctly parsed and replaced, which has been corrected.
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(merge abf94a283f sa/multi-mailmap-fix later to maint).
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* "git maintenance" lacked the care "git gc" had to avoid holding
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onto the repository lock for too long during packing refs, which
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has been remedied.
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(merge 1b5074e614 ps/maintenance-ref-lock later to maint).
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* Avoid regexp_constraint and instead use comparison_constraint when
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listing functions to exclude from application of coccinelle rules,
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as spatch can be built with different regexp engine X-<.
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(merge f2ad545813 jc/cocci-avoid-regexp-constraint later to maint).
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* Updating submodules from the upstream did not work well when
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submodule's HEAD is detached, which has been improved.
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(merge ca62f524c1 jk/submodule-remote-lookup-cleanup later to maint).
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* Remove unnecessary check from "git daemon" code.
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(merge 0c856224d2 cb/daemon-fd-check-fix later to maint).
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* Use of sysctl() system call to learn the total RAM size used on
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BSDs has been corrected.
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(merge 781c1cf571 cb/total-ram-bsd-fix later to maint).
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* Drop FreeBSD 4 support and declare that we support only FreeBSD 12
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or later, which has memmem() supported.
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(merge 0392f976a7 bs/config-mak-freebsd later to maint).
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* A diff-filter with negative-only specification like "git log
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--diff-filter=d" did not trigger correctly, which has been fixed.
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(merge 375ac087c5 jk/all-negative-diff-filter-fix later to maint).
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* A failure to open the index file for writing due to conflicting
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access did not state what went wrong, which has been corrected.
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(merge 9455397a5c hy/read-cache-lock-error-fix later to maint).
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* Tempfile removal fix in the codepath to sign commits with SSH keys.
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(merge 4498127b04 re/ssh-sign-buffer-fix later to maint).
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* Code and test clean-up around string-list API.
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(merge 6e5b26c3ff sj/string-list later to maint).
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* "git apply -N" should start from the current index and register
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only new files, but it instead started from an empty index, which
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has been corrected.
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(merge 2b49d97fcb rp/apply-intent-to-add-fix later to maint).
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* Leakfix with a new and a bit invasive test on pack-bitmap files.
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(merge bfd5522e98 ly/load-bitmap-leakfix later to maint).
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* "git fetch --prune" used to be O(n^2) expensive when there are many
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refs, which has been corrected.
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(merge 87d8d8c5d0 ph/fetch-prune-optim later to maint).
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* When a ref creation at refs/heads/foo/bar fails, the files backend
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now removes refs/heads/foo/ if the directory is otherwise not used.
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(merge a3a7f20516 ps/refs-files-remove-empty-parent later to maint).
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* "pack-objects" has been taught to avoid pointing into objects in
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cruft packs from midx.
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* "git remote" now detects remote names that overlap with each other
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(e.g., remote nickname "outer" and "outer/inner" are used at the
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same time), as it will lead to overlapping remote-tracking
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branches.
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(merge a5a727c448 jk/remote-avoid-overlapping-names later to maint).
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* The gpg.program configuration variable, which names a pathname to
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the (custom) GPG compatible program, can now be spelled with ~tilde
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expansion.
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(merge 7d275cd5c0 jb/gpg-program-variable-is-a-pathname later to maint).
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* Our <sane-ctype.h> header file relied on that the system-supplied
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<ctype.h> header is not later included, which would override our
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macro definitions, but "amazon linux" broke this assumption. Fix
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this by preemptively including <ctype.h> near the beginning of
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<sane-ctype.h> ourselves.
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(merge 9d3b33125f ps/sane-ctype-workaround later to maint).
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* Clean-up compat/bswap.h mess.
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(merge f4ac32c03a ss/compat-bswap-revamp later to maint).
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* Meson-based build did not handle libexecdir setting correctly,
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which has been corrected.
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(merge 056dbe8612 rj/meson-libexecdir-fix later to maint).
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* Document that we do not require "real" name when signing your
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patches off.
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(merge 1f0fed312a bc/contribution-under-non-real-names later to maint).
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* "git commit" that concludes a conflicted merge failed to notice and remove
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existing comment added automatically (like "# Conflicts:") when the
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core.commentstring is set to 'auto'.
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(merge 92b7c7c9f5 ac/auto-comment-char-fix later to maint).
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* "git rebase -i" with bogus rebase.instructionFormat configuration
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failed to produce the todo file after recording the state files,
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leading to confused "git status"; this has been corrected.
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(merge ade14bffd7 ow/rebase-verify-insn-fmt-before-initializing-state later to maint).
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* A few file descriptors left unclosed upon program completion in a
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few test helper programs are now closed.
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(merge 0f1b33815b hl/test-helper-fd-close later to maint).
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* Interactive prompt code did not correctly strip CRLF from the end
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of line on Windows.
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(merge 711a20827b js/prompt-crlf-fix later to maint).
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* The config API had a set of convenience wrapper functions that
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implicitly use the_repository instance; they have been removed and
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inlined at the calling sites.
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* "git add/etc -p" now honor the diff.context configuration variable,
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and also they learn to honor the -U<n> command-line option.
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(merge 2b3ae04011 lm/add-p-context later to maint).
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* The case where a new submodule takes a path where there used to be a
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completely different subproject is now dealt with a bit better than
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before.
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(merge 5ed8c5b465 kj/renamed-submodule later to maint).
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* The deflate codepath in "git archive --format=zip" had a
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longstanding bug coming from misuse of zlib API, which has been
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corrected.
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* Other code cleanup, docfix, build fix, etc.
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(merge b257adb571 lo/my-first-ow-doc-update later to maint).
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(merge 8b34b6a220 ly/sequencer-update-squash-is-fixup-only later to maint).
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(merge 5dceb8bd05 ly/do-not-localize-bug-messages later to maint).
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(merge 61372dd613 ly/commit-buffer-reencode-leakfix later to maint).
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(merge 81cd1eef7d ly/pack-bitmap-root-leakfix later to maint).
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(merge bfc9f9cc64 ly/submodule-update-failure-leakfix later to maint).
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(merge 65dff89c6b ma/doc-diff-cc-headers later to maint).
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(merge efb61591ee jm/bundle-uri-debug-output-to-fp later to maint).
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(merge a3d278bb64 ly/prepare-show-merge-leakfix later to maint).
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(merge 1fde1c5daf ac/preload-index-wo-the-repository later to maint).
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(merge 855cfc65ae rm/t2400-modernize later to maint).
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(merge 2939494284 ly/run-builtin-use-passed-in-repo later to maint).
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(merge ff73f375bb jg/mailinfo-leakfix later to maint).
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(merge 996f14c02b jj/doc-branch-markup-fix later to maint).
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(merge 1e77de1864 cb/ci-freebsd-update-to-14.3 later to maint).
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(merge b0e9d25865 jk/fix-leak-send-pack later to maint).
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(merge f3a9558c8c bs/remote-helpers-doc-markup-fix later to maint).
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(merge c4e9775c60 kh/doc-config-subcommands later to maint).
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(merge de404249ab ps/perlless-test-fixes later to maint).
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(merge 953049eed8 ts/merge-orig-head-doc-fix later to maint).
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(merge 0c83bbc704 rj/freebsd-sysinfo-build-fix later to maint).
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(merge ad7780b38f ps/doc-pack-refs-auto-with-files-backend-fix later to maint).
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(merge f4fa8a3687 rh/doc-glob-pathspec-fix later to maint).
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(merge b27be108c8 ja/doc-git-log-markup later to maint).
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(merge 14d7583beb pw/config-kvi-remove-path later to maint).
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(merge f31abb421d jc/do-not-scan-argv-without-parsing later to maint).
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(merge 26552cb62a jk/unleak-reflog-expire-entry later to maint).
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(merge 339d95fda9 jc/ci-print-test-failures-fix later to maint).
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(merge 8c3add51a8 cb/meson-avoid-broken-macos-pcre2 later to maint).
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(merge 5247da07b8 ps/meson-clar-decls-fix later to maint).
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(merge f3ef347bb2 ch/t7450-recursive-clone-test-fix later to maint).
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(merge 4ac3302a1a jc/doc-release-vs-clear later to maint).
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(merge 3bdd897413 ms/meson-with-ancient-git-wo-ls-files-dedup later to maint).
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(merge cca758d324 kh/doc-fast-import-historical later to maint).
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(merge 9b0781196a jc/test-hashmap-is-still-here later to maint).
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(merge 1bad05bacc jk/revert-squelch-compiler-warning later to maint).
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(merge 3a7e783d9c dl/squelch-maybe-uninitialized later to maint).
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