285 lines
11 KiB
Plaintext
285 lines
11 KiB
Plaintext
Git v2.38 Release Notes
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=======================
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UI, Workflows & Features
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* "git remote show [-n] frotz" now pays attention to negative
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pathspec.
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* "git push" sometimes perform poorly when reachability bitmaps are
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used, even in a repository where other operations are helped by
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bitmaps. The push.useBitmaps configuration variable is introduced
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to allow disabling use of reachability bitmaps only for "git push".
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* "git grep -m<max-hits>" is a way to limit the hits shown per file.
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* "git merge-tree" learned a new mode where it takes two commits and
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computes a tree that would result in the merge commit, if the
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histories leading to these two commits were to be merged.
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* "git mv A B" in a sparsely populated working tree can be asked to
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move a path between directories that are "in cone" (i.e. expected
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to be materialized in the working tree) and "out of cone"
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(i.e. expected to be hidden). The handling of such cases has been
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improved.
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* Earlier, HTTP transport clients learned to tell the server side
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what locale they are in by sending Accept-Language HTTP header, but
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this was done only for some requests but not others.
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* Introduce a discovery.barerepository configuration variable that
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allows users to forbid discovery of bare repositories.
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* Various messages that come from the pack-bitmap codepaths have been
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tweaked.
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* "git rebase -i" learns to update branches whose tip appear in the
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rebased range with "--update-refs" option.
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* "git ls-files" learns the "--format" option to tweak its output.
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* "git cat-file" learned an option to use the mailmap when showing
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commit and tag objects.
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* When "git merge" finds that it cannot perform a merge, it should
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restore the working tree to the state before the command was
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initiated, but in some corner cases it didn't.
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* Operating modes like "--batch" of "git cat-file" command learned to
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take NUL-terminated input, instead of one-item-per-line.
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* "git rm" has become more aware of the sparse-index feature.
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* "git rev-list --disk-usage" learned to take an optional value
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"human" to show the reported value in human-readable format, like
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"3.40MiB".
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* The "diagnose" feature to create a zip archive for diagnostic
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material has been lifted from "scalar" and made into a feature of
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"git bugreport".
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Performance, Internal Implementation, Development Support etc.
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* Collection of what is referenced by objects in promisor packs have
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been optimized to inspect these objects in the in-pack order.
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* Introduce a helper to see if a branch is already being worked on
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(hence should not be newly checked out in a working tree), which
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performs much better than the existing find_shared_symref() to
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replace many uses of the latter.
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* Teach "git archive" to (optionally and then by default) avoid
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spawning an external "gzip" process when creating ".tar.gz" (and
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".tgz") archives.
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* Allow large objects read from a packstream to be streamed into a
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loose object file straight, without having to keep it in-core as a
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whole.
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* Further preparation to turn git-submodule.sh into a builtin
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continues.
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* Apply Coccinelle rule to turn raw memmove() into MOVE_ARRAY() cpp
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macro, which would improve maintainability and readability.
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* Teach "make all" to build gitweb as well.
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* Tweak tests so that they still work when the "git init" template
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did not create .git/info directory.
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* Add Coccinelle rules to detect the pattern of initializing and then
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finalizing a structure without using it in between at all, which
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happens after code restructuring and the compilers fail to
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recognize as an unused variable.
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* The code to convert between GPG trust level strings and internal
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constants we use to represent them have been cleaned up.
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* Support for libnettle as SHA256 implementation has been added.
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* The way "git multi-pack" uses parse-options API has been improved.
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* A coccinelle rule (in contrib/) to encourage use of COPY_ARRAY
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macro has been improved.
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* API tweak to make it easier to run fuzz testing on commit-graph parser.
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* Omit fsync-related trace2 entries when their values are all zero.
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* The codepath to write multi-pack index has been taught to release a
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large chunk of memory that holds an array of objects in the packs,
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as soon as it is done with the array, to reduce memory consumption.
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* Add a level of redirection to array allocation API in xdiff part,
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to make it easier to share with the libgit2 project.
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* "git fetch" client logs the partial clone filter used in the trace2
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output.
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* The "bundle URI" design gets documented.
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* The common ancestor negotiation exchange during a "git fetch"
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session now leaves trace log.
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Fixes since v2.37
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-----------------
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* Rewrite of "git add -i" in C that appeared in Git 2.25 didn't
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correctly record a removed file to the index, which was fixed.
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* Certain diff options are currently ignored when combined-diff is
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shown; mark them as incompatible with the feature.
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* Adjust technical/bitmap-format to be formatted by AsciiDoc, and
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add some missing information to the documentation.
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* Fixes for tests when the source directory has unusual characters in
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its path, e.g. whitespaces, double-quotes, etc.
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* "git mktree --missing" lazily fetched objects that are missing from
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the local object store, which was totally unnecessary for the purpose
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of creating the tree object(s) from its input.
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* Give _() markings to fatal/warning/usage: labels that are shown in
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front of these messages.
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* References to commands-to-be-typed-literally in "git rebase"
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documentation mark-up have been corrected.
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* In a non-bare repository, the behavior of Git when the
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core.worktree configuration variable points at a directory that has
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a repository as its subdirectory, regressed in Git 2.27 days.
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* Recent update to vimdiff layout code has been made more robust
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against different end-user vim settings.
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* Plug various memory leaks.
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(merge ece3974ba6 ab/leakfix later to maint).
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* Plug various memory leaks in test-tool commands.
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(merge f40a693450 ab/test-tool-leakfix later to maint).
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* Fixes a long-standing corner case bug around directory renames in
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the merge-ort strategy.
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* The resolve-undo information in the index was not protected against
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GC, which has been corrected.
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* A corner case bug where lazily fetching objects from a promisor
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remote resulted in infinite recursion has been corrected.
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* "git clone" from a repository with some ref whose HEAD is unborn
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did not set the HEAD in the resulting repository correctly, which
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has been corrected.
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* An earlier attempt to plug leaks placed a clean-up label to jump to
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at a bogus place, which as been corrected.
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* Variable quoting fix in the vimdiff driver of "git mergetool"
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* "git shortlog -n" relied on the underlying qsort() to be stable,
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which shouldn't have. Fixed.
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* A fix for a regression in test framework.
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* mkstemp() emulation on Windows has been improved.
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* Add missing documentation for "include" and "includeIf" features in
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"git config" file format, which incidentally teaches the command
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line completion to include them in its offerings.
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* Avoid "white/black-list" in documentation and code comments.
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* Workaround for a compiler warning against use of die() in
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osx-keychain (in contrib/).
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* Workaround for a false positive compiler warning.
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* "git p4" working on UTF-16 files on Windows did not implement
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CRLF-to-LF conversion correctly, which has been corrected.
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* "git p4" did not handle non-ASCII client name well, which has been
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corrected.
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* "rerere-train" script (in contrib/) used to honor commit.gpgSign
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while recreating the throw-away merges.
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* "git checkout" miscounted the paths it updated, which has been
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corrected.
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* Fix for a bug that makes write-tree to fail to write out a
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non-existent index as a tree, introduced in 2.37.
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* There was a bug in the codepath to upgrade generation information
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in commit-graph from v1 to v2 format, which has been corrected.
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* Gitweb had legacy URL shortener that is specific to the way
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projects hosted on kernel.org used to (but no longer) work, which
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has been removed.
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(merge 75707da4fa jr/gitweb-title-shortening later to maint).
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* Fix build procedure for Windows that uses CMake so that it can pick
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up the shell interpreter from local installation location.
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(merge 476e54b1c6 ca/unignore-local-installation-on-windows later to maint).
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* Conditionally allow building Python interpreter on Windows
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(merge 2f0623aaa7 js/mingw-with-python later to maint).
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* Fix to lstat() emulation on Windows.
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(merge 82ba1191ff js/lstat-mingw-enotdir-fix later to maint).
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* Older gcc with -Wall complains about the universal zero initializer
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"struct s = { 0 };" idiom, which makes developers' lives
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inconvenient (as -Werror is enabled by DEVELOPER=YesPlease). The
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build procedure has been tweaked to help these compilers.
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(merge b53a5f2416 jk/struct-zero-init-with-older-gcc later to maint).
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* Plug memory leaks in the failure code path in the "merge-ort" merge
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strategy backend.
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(merge 1250dff32b js/ort-clean-up-after-failed-merge later to maint).
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* "git symbolic-ref symref non..sen..se" is now diagnosed as an error.
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(merge 04ede97211 lt/symbolic-ref-sanity later to maint).
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* A follow-up fix to a fix for a regression in 2.36.
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(merge 99ddc24672 ab/hooks-regression-fix later to maint).
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* Avoid repeatedly running getconf to ask libc version in the test
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suite, and instead just as it once per script.
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(merge a6a58f7801 pw/use-glibc-tunable-for-malloc-optim later to maint).
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* Platform-specific code that determines if a directory is OK to use
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as a repository has been taught to report more details, especially
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on Windows.
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(merge 3f7207e2ea js/safe-directory-plus later to maint).
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* "vimdiff3" regression fix.
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(merge 34133d9658 fc/vimdiff-layout-vimdiff3-fix later to maint).
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* "git fsck" reads mode from tree objects but canonicalizes the mode
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before passing it to the logic to check object sanity, which has
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hid broken tree objects from the checking logic. This has been
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corrected, but to help exiting projects with broken tree objects
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that they cannot fix retroactively, the severity of anomalies this
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code detects has been demoted to "info" for now.
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(merge 4dd3b045f5 jk/fsck-tree-mode-bits-fix later to maint).
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* Fixes to sparse index compatibility work for "reset" and "checkout"
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commands.
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(merge b15207b8cf vd/sparse-reset-checkout-fixes later to maint).
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* An earlier optimization discarded a tree-object buffer that is
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still in use, which has been corrected.
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(merge 1490d7d82d jk/is-promisor-object-keep-tree-in-use later to maint).
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* Fix deadlocks between main Git process and subprocess spawned via
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the pipe_command() API, that can kill "git add -p" that was
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reimplemented in C recently.
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(merge 716c1f649e jk/pipe-command-nonblock later to maint).
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* Other code cleanup, docfix, build fix, etc.
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(merge 94955d576b gc/git-reflog-doc-markup later to maint).
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(merge efae7ce692 po/doc-add-renormalize later to maint).
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