398 lines
17 KiB
Text
398 lines
17 KiB
Text
Git 2.24 Release Notes
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======================
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Updates since v2.23
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-------------------
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Backward compatibility note
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* "filter-branch" is showing its age and alternatives are available.
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From this release, we started to discourage its use and hint
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people about filter-repo.
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UI, Workflows & Features
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* We now have an active interim maintainer for the Git-Gui part of
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the system. Praise and thank Pratyush Yadav for volunteering.
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* The command line parser learned "--end-of-options" notation; the
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standard convention for scripters to have hardcoded set of options
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first on the command line, and force the command to treat end-user
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input as non-options, has been to use "--" as the delimiter, but
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that would not work for commands that use "--" as a delimiter
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between revs and pathspec.
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* A mechanism to affect the default setting for a (related) group of
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configuration variables is introduced.
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* "git fetch" learned "--set-upstream" option to help those who first
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clone from their private fork they intend to push to, add the true
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upstream via "git remote add" and then "git fetch" from it.
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* Device-tree files learned their own userdiff patterns.
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(merge 3c81760bc6 sb/userdiff-dts later to maint).
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* "git rebase --rebase-merges" learned to drive different merge
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strategies and pass strategy specific options to them.
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* A new "pre-merge-commit" hook has been introduced.
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* Command line completion updates for "git -c var.name=val" have been
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added.
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* The lazy clone machinery has been taught that there can be more
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than one promisor remote and consult them in order when downloading
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missing objects on demand.
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* The list-objects-filter API (used to create a sparse/lazy clone)
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learned to take a combined filter specification.
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* The documentation and tests for "git format-patch" have been
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cleaned up.
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* On Windows, the root level of UNC share is now allowed to be used
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just like any other directory.
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* The command line completion support (in contrib/) learned about the
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"--skip" option of "git revert" and "git cherry-pick".
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* "git rebase --keep-base <upstream>" tries to find the original base
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of the topic being rebased and rebase on top of that same base,
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which is useful when running the "git rebase -i" (and its limited
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variant "git rebase -x").
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The command also has learned to fast-forward in more cases where it
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can instead of replaying to recreate identical commits.
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* A configuration variable tells "git fetch" to write the commit
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graph after finishing.
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* "git add -i" has been taught to show the total number of hunks and
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the hunks that has been processed so far when showing prompts.
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* "git fetch --jobs=<n>" allowed <n> parallel jobs when fetching
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submodules, but this did not apply to "git fetch --multiple" that
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fetches from multiple remote repositories. It now does.
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* The installation instruction for zsh completion script (in
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contrib/) has been a bit improved.
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Performance, Internal Implementation, Development Support etc.
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* The code to write commit-graph over given commit object names has
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been made a bit more robust.
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* The first line of verbose output from each test piece now carries
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the test name and number to help scanning with eyeballs.
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* Further clean-up of the initialization code.
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* xmalloc() used to have a mechanism to ditch memory and address
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space resources as the last resort upon seeing an allocation
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failure from the underlying malloc(), which made the code complex
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and thread-unsafe with dubious benefit, as major memory resource
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users already do limit their uses with various other mechanisms.
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It has been simplified away.
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* Unnecessary full-tree diff in "git log -L" machinery has been
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optimized away.
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* The http transport lacked some optimization the native transports
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learned to avoid unnecessary ref advertisement, which has been
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corrected.
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* Preparation for SHA-256 upgrade continues in the test department.
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(merge 0c37c41d13 bc/hash-independent-tests-part-5 later to maint).
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* The memory ownership model of the "git fast-import" got
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straightened out.
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* Output from trace2 subsystem is formatted more prettily now.
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* The internal code originally invented for ".gitignore" processing
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got reshuffled and renamed to make it less tied to "excluding" and
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stress more that it is about "matching", as it has been reused for
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things like sparse checkout specification that want to check if a
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path is "included".
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* "git stash" learned to write refreshed index back to disk.
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* Coccinelle checks are done on more source files than before now.
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* The cache-tree code has been taught to be less aggressive in
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attempting to see if a tree object it computed already exists in
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the repository.
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* The code to parse and use the commit-graph file has been made more
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robust against corrupted input.
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* The hg-to-git script (in contrib/) has been updated to work with
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Python 3.
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* Update the way build artifacts in t/helper/ directory are ignored.
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* Preparation for SHA-256 upgrade continues.
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* "git log --graph" for an octopus merge is sometimes colored
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incorrectly, which is demonstrated and documented but not yet
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fixed.
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* The trace2 output, when sending them to files in a designated
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directory, can populate the directory with too many files; a
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mechanism is introduced to set the maximum number of files and
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discard further logs when the maximum is reached.
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* We have adopted a Code-of-conduct document.
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(merge 3f9ef874a7 jk/coc later to maint).
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Fixes since v2.23
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-----------------
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* "git grep --recurse-submodules" that looks at the working tree
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files looked at the contents in the index in submodules, instead of
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files in the working tree.
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(merge 6a289d45c0 mt/grep-submodules-working-tree later to maint).
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* Codepaths to walk tree objects have been audited for integer
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overflows and hardened.
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(merge 5aa02f9868 jk/tree-walk-overflow later to maint).
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* "git pack-refs" can lose refs that are created while running, which
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is getting corrected.
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(merge a613d4f817 sc/pack-refs-deletion-racefix later to maint).
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* "git checkout" and "git restore" to re-populate the index from a
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tree-ish (typically HEAD) did not work correctly for a path that
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was removed and then added again with the intent-to-add bit, when
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the corresponding working tree file was empty. This has been
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corrected.
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* Compilation fix.
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(merge 70597e8386 rs/nedalloc-fixlets later to maint).
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* "git gui" learned to call the clean-up procedure before exiting.
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(merge 0d88f3d2c5 py/git-gui-do-quit later to maint).
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* We promoted the "indent heuristics" that decides where to split
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diff hunks from experimental to the default a few years ago, but
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some stale documentation still marked it as experimental, which has
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been corrected.
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(merge 64e5e1fba1 sg/diff-indent-heuristic-non-experimental later to maint).
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* Fix a mismerge that happened in 2.22 timeframe.
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(merge acb7da05ac en/checkout-mismerge-fix later to maint).
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* "git archive" recorded incorrect length in extended pax header in
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some corner cases, which has been corrected.
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(merge 71d41ff651 rs/pax-extended-header-length-fix later to maint).
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* On-demand object fetching in lazy clone incorrectly tried to fetch
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commits from submodule projects, while still working in the
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superproject, which has been corrected.
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(merge a63694f523 jt/diff-lazy-fetch-submodule-fix later to maint).
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* Prepare get_short_oid() codepath to be thread-safe.
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(merge 7cfcb16b0e rs/sort-oid-array-thread-safe later to maint).
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* "for-each-ref" and friends that show refs did not protect themselves
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against ancient tags that did not record tagger names when asked to
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show "%(taggername)", which have been corrected.
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(merge 8b3f33ef11 mp/for-each-ref-missing-name-or-email later to maint).
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* The "git am" based backend of "git rebase" ignored the result of
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updating ".gitattributes" done in one step when replaying
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subsequent steps.
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(merge 2c65d90f75 bc/reread-attributes-during-rebase later to maint).
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* Tell cURL library to use the same malloc() implementation, with the
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xmalloc() wrapper, as the rest of the system, for consistency.
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(merge 93b980e58f cb/curl-use-xmalloc later to maint).
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* Build fix to adjust .gitignore to unignore a path that we started to track.
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(merge aac6ff7b5b js/visual-studio later to maint).
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* A few implementation fixes in the notes API.
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(merge 60fe477a0b mh/notes-duplicate-entries later to maint).
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* Fix an earlier regression to "git push --all" which should have
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been forbidden when the target remote repository is set to be a
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mirror.
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(merge 8e4c8af058 tg/push-all-in-mirror-forbidden later to maint).
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* Fix an earlier regression in the test suite, which mistakenly
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stopped running HTTPD tests.
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(merge 3960290675 sg/git-test-boolean later to maint).
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* "git rebase --autostash <upstream> <branch>", when <branch> is
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different from the current branch, incorrectly moved the tip of the
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current branch, which has been corrected.
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(merge bf1e28e0ad bw/rebase-autostash-keep-current-branch later to maint).
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* Update support for Asciidoctor documentation toolchain.
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(merge 83b0b8953e ma/asciidoctor-refmiscinfo later to maint).
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* Start using DocBook 5 (instead of DocBook 4.5) as Asciidoctor 2.0
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no longer works with the older one.
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(merge f6461b82b9 bc/doc-use-docbook-5 later to maint).
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* The markup used in user-manual has been updated to work better with
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asciidoctor.
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(merge c4d2f6143a ma/user-manual-markup-update later to maint).
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* Make sure the grep machinery does not abort when seeing a payload
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that is not UTF-8 even when JIT is not in use with PCRE1.
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(merge ad7c543e3b cb/skip-utf8-check-with-pcre1 later to maint).
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* The name of the blob object that stores the filter specification
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for sparse cloning/fetching was interpreted in a wrong place in the
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code, causing Git to abort.
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* "git log --decorate-refs-exclude=<pattern>" was incorrectly
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overruled when the "--simplify-by-decoration" option is used, which
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has been corrected.
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(merge 0cc7380d88 rs/simplify-by-deco-with-deco-refs-exclude later to maint).
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* The "upload-pack" (the counterpart of "git fetch") needs to disable
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commit-graph when responding to a shallow clone/fetch request, but
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the way this was done made Git panic, which has been corrected.
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* The object traversal machinery has been optimized not to load tree
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objects when we are only interested in commit history.
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(merge 72ed80c784 jk/list-objects-optim-wo-trees later to maint).
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* The object name parser for "Nth parent" syntax has been made more
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robust against integer overflows.
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(merge 59fa5f5a25 rs/nth-parent-parse later to maint).
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* The code used in following tags in "git fetch" has been optimized.
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(merge b7e2d8bca5 ms/fetch-follow-tag-optim later to maint).
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* Regression fix for progress output.
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(merge 2bb74b53a4 sg/progress-fix later to maint).
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* A bug in merge-recursive code that triggers when a branch with a
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symbolic link is merged with a branch that replaces it with a
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directory has been fixed.
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(merge 83e3ad3b12 jt/merge-recursive-symlink-is-not-a-dir-in-way later to maint).
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* The rename detection logic sorts a list of rename source candidates
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by similarity to pick the best candidate, which means that a tie
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between sources with the same similarity is broken by the original
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location in the original candidate list (which is sorted by path).
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Force the sorting by similarity done with a stable sort, which is
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not promised by system supplied qsort(3), to ensure consistent
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results across platforms.
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(merge 2049b8dc65 js/diff-rename-force-stable-sort later to maint).
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* The code to skip "UTF" and "UTF-" prefix, when computing an advice
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message, did not work correctly when the prefix was "UTF", which
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has been fixed.
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(merge b181676ce9 rs/convert-fix-utf-without-dash later to maint).
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* The author names taken from SVN repositories may have extra leading
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or trailing whitespaces, which are now munged away.
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(merge 4ddd4bddb1 tk/git-svn-trim-author-name later to maint).
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* "git rebase -i" showed a wrong HEAD while "reword" open the editor.
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(merge b0a3186140 pw/rebase-i-show-HEAD-to-reword later to maint).
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* A few simplification and bugfixes to PCRE interface.
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(merge c581e4a749 ab/pcre-jit-fixes later to maint).
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* PCRE fixes.
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(merge ff61681b46 cb/pcre1-cleanup later to maint).
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* "git range-diff" segfaulted when diff.noprefix configuration was
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used, as it blindly expected the patch it internally generates to
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have the standard a/ and b/ prefixes. The command now forces the
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internal patch to be built without any prefix, not to be affected
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by any end-user configuration.
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(merge 937b76ed49 js/range-diff-noprefix later to maint).
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* "git stash apply" in a subdirectory of a secondary worktree failed
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to access the worktree correctly, which has been corrected.
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(merge dfd557c978 js/stash-apply-in-secondary-worktree later to maint).
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* The merge-recursive machinery is one of the most complex parts of
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the system that accumulated cruft over time. This large series
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cleans up the implementation quite a bit.
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(merge b657047719 en/merge-recursive-cleanup later to maint).
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* Pretty-printed command line formatter (used in e.g. reporting the
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command being run by the tracing API) had a bug that lost an
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argument that is an empty string, which has been corrected.
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(merge ce2d7ed2fd gs/sq-quote-buf-pretty later to maint).
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* "git range-diff" failed to handle mode-only change, which has been
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corrected.
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(merge 2b6a9b13ca tg/range-diff-output-update later to maint).
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* Dev support update.
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(merge 4f3c1dc5d6 dl/allow-running-cocci-verbosely later to maint).
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* "git format-patch -o <outdir>" did an equivalent of "mkdir <outdir>"
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not "mkdir -p <outdir>", which was corrected.
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* "git stash save" lost local changes to submodules, which has been
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corrected.
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(merge 556895d0c8 jj/stash-reset-only-toplevel later to maint).
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* The atomic push over smart HTTP transport did not work, which has
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been corrected.
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(merge 6f1194246a bc/smart-http-atomic-push later to maint).
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* Other code cleanup, docfix, build fix, etc.
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(merge d1387d3895 en/fast-import-merge-doc later to maint).
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(merge 1c24a54ea4 bm/repository-layout-typofix later to maint).
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(merge 415b770b88 ds/midx-expire-repack later to maint).
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(merge 19800bdc3f nd/diff-parseopt later to maint).
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(merge 58166c2e9d tg/t0021-racefix later to maint).
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(merge 7027f508c7 dl/compat-cleanup later to maint).
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(merge e770fbfeff jc/test-cleanup later to maint).
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(merge 1fd881d404 rs/trace2-dst-warning later to maint).
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(merge 7e92756751 mh/http-urlmatch-cleanup later to maint).
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(merge 9784f97321 mh/release-commit-memory-fix later to maint).
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(merge 60d198d022 tb/banned-vsprintf-namefix later to maint).
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(merge 80e3658647 rs/help-unknown-ref-does-not-return later to maint).
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(merge 0a8bc7068f dt/remote-helper-doc-re-lock-option later to maint).
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(merge 27fd1e4ea7 en/merge-options-ff-and-friends later to maint).
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(merge 502c386ff9 sg/clean-nested-repo-with-ignored later to maint).
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(merge 26e3d1cbea am/mailmap-andrey-mazo later to maint).
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(merge 47b27c96fa ss/get-time-cleanup later to maint).
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(merge dd2e50a84e jk/commit-graph-cleanup later to maint).
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(merge 4fd39c76e6 cs/pretty-formats-doc-typofix later to maint).
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(merge 40e747e89d dl/submodule-set-branch later to maint).
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(merge 689a146c91 rs/commit-graph-use-list-count later to maint).
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(merge 0eb7c37a8a js/doc-patch-text later to maint).
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(merge 4b3aa170d1 rs/nth-switch-code-simplification later to maint).
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(merge 0d4304c124 ah/doc-submodule-ignore-submodules later to maint).
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(merge af78249463 cc/svn-fe-py-shebang later to maint).
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(merge 7bd97d6dff rs/alias-use-copy-array later to maint).
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(merge c46ebc2496 sg/travis-help-debug later to maint).
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(merge 24c681794f ps/my-first-contribution-alphasort later to maint).
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(merge 75b2c15435 cb/do-not-use-test-cmp-with-a later to maint).
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(merge cda0d497e3 bw/submodule-helper-usage-fix later to maint).
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(merge fe0ed5d5e9 am/visual-studio-config-fix later to maint).
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(merge 2e09c01232 sg/name-rev-cutoff-underflow-fix later to maint).
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(merge ddb3c856f3 as/shallow-slab-use-fix later to maint).
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(merge 71f4960b91 js/mingw-spawn-with-spaces-in-path later to maint).
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(merge 53d687bf5f ah/cleanups later to maint).
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(merge f537485fa5 rs/test-remove-useless-debugging-cat later to maint).
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(merge 11a3d3aadd dl/rev-list-doc-cleanup later to maint).
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(merge d928a8388a am/t0028-utf16-tests later to maint).
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(merge b05b40930e dl/t0000-skip-test-test later to maint).
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(merge 03d3b1297c js/xdiffi-comment-updates later to maint).
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(merge 57d8f4b4c7 js/doc-stash-save later to maint).
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(merge 8c1cfd58e3 ta/t1308-typofix later to maint).
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(merge fa364ad790 bb/utf8-wcwidth-cleanup later to maint).
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(merge 68b69211b2 bb/compat-util-comment-fix later to maint).
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(merge 5cc6a4be11 rs/http-push-simplify later to maint).
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(merge a81e42d235 rs/column-use-utf8-strnwidth later to maint).
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(merge 062a309d36 rs/remote-curl-use-argv-array later to maint).
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(merge 3b3c79f6c9 nr/diff-highlight-indent-fix later to maint).
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(merge 3444ec2eb2 wb/fsmonitor-bitmap-fix later to maint).
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(merge 10da030ab7 cb/pcre2-chartables-leakfix later to maint).
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(merge 60e6569a12 js/mingw-needs-hiding-fix later to maint).
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(merge 52bd3e4657 rl/gitweb-blame-prev-fix later to maint).
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