Sixth batch

[thirdparty/git.git] / Documentation / RelNotes / 2.29.0.txt

Git 2.29 Release Notes
======================

Updates since v2.28
-------------------

UI, Workflows & Features

 * "git help log" has been enhanced by sharing more material from the
   documentation for the underlying "git rev-list" command.

 * "git for-each-ref --format=<>" learned %(contents:size).

 * "git merge" learned to selectively omit " into <branch>" at the end
   of the title of default merge message with merge.suppressDest
   configuration.

 * The component to respond to "git fetch" request is made more
   configurable to selectively allow or reject object filtering
   specification used for partial cloning.


Performance, Internal Implementation, Development Support etc.

 * The changed-path Bloom filter is improved using ideas from an
   independent implementation.

 * Updates to the changed-paths bloom filter.

 * The test framework has been updated so that most tests will run
   with predictable (artificial) timestamps.

 * Preliminary clean-up of the refs API in preparation for adding a
   new refs backend "reftable".

 * Dev support to limit the use of test_must_fail to only git commands.

 * While packing many objects in a repository with a promissor remote,
   lazily fetching missing objects from the promissor remote one by
   one may be inefficient---the code now attempts to fetch all the
   missing objects in batch (obviously this won't work for a lazy
   clone that lazily fetches tree objects as you cannot even enumerate
   what blobs are missing until you learn which trees are missing).

 * The pretend-object mechanism checks if the given object already
   exists in the object store before deciding to keep the data
   in-core, but the check would have triggered lazy fetching of such
   an object from a promissor remote.

 * The argv_array API is useful for not just managing argv but any
   "vector" (NULL-terminated array) of strings, and has seen adoption
   to a certain degree.  It has been renamed to "strvec" to reduce the
   barrier to adoption.

 * The final leg of SHA-256 transition.

 * CMake support to build with MSVC for Windows bypassing the Makefile.


Fixes since v2.28
-----------------

 * "git clone --separate-git-dir=$elsewhere" used to stomp on the
   contents of the existing directory $elsewhere, which has been
   taught to fail when $elsewhere is not an empty directory.
   (merge dfaa209a79 bw/fail-cloning-into-non-empty later to maint).

 * With the base fix to 2.27 regresion, any new extensions in a v0
   repository would still be silently honored, which is not quite
   right.  Instead, complain and die loudly.
   (merge ec91ffca04 jk/reject-newer-extensions-in-v0 later to maint).

 * Fetching from a lazily cloned repository resulted at the server
   side in attempts to lazy fetch objects that the client side has,
   many of which will not be available from the third-party anyway.
   (merge 77aa0941ce jt/avoid-lazy-fetching-upon-have-check later to maint).

 * Fix to an ancient bug caused by an over-eager attempt for
   optimization.
   (merge a98f7fb366 rs/add-index-entry-optim-fix later to maint).

 * Pushing a ref whose name contains non-ASCII character with the
   "--force-with-lease" option did not work over smart HTTP protocol,
   which has been corrected.
   (merge cd85b447bf bc/push-cas-cquoted-refname later to maint).

 * "git mv src dst", when src is an unmerged path, errored out
   correctly but with an incorrect error message to claim that src is
   not tracked, which has been clarified.
   (merge 9b906af657 ct/mv-unmerged-path-error later to maint).

 * Fix to a regression introduced during 2.27 cycle.
   (merge cada7308ad en/fill-directory-exponential later to maint).

 * Command line completion (in contrib/) update.
   (merge 688b87c81b mp/complete-show-color-moved later to maint).

 * All "mergy" operations that internally use the merge-recursive
   machinery should honor the merge.renormalize configuration, but
   many of them didn't.

 * Doc cleanup around "worktree".
   (merge dc9c144be5 es/worktree-doc-cleanups later to maint).

 * Other code cleanup, docfix, build fix, etc.
   (merge 84544f2ea3 sk/typofixes later to maint).
   (merge b17f411ab5 ar/help-guides-doc later to maint).
   (merge 98c6871fad rs/grep-simpler-parse-object-or-die-call later to maint).
   (merge 861c4ce141 en/typofixes later to maint).
   (merge 60e47f6773 sg/ci-git-path-fix-with-pyenv later to maint).
   (merge e2bfa50ac3 jb/doc-packfile-name later to maint).
   (merge 918d8ff780 es/worktree-cleanup later to maint).
   (merge dc156bc31f ma/t1450-quotefix later to maint).
   (merge 56e743426b en/merge-recursive-comment-fixes later to maint).
   (merge 7d23ff818f rs/bisect-oid-to-hex-fix later to maint).
   (merge de20baf2c9 ny/notes-doc-sample-update later to maint).
   (merge f649aaaf82 so/rev-parser-errormessage-fix later to maint).