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diff --git a/Documentation/RelNotes/2.44.0.txt b/Documentation/RelNotes/2.44.0.txt new file mode 100644 index 0000000000..14f9ce8226 --- /dev/null +++ b/Documentation/RelNotes/2.44.0.txt @@ -0,0 +1,334 @@ +Git v2.44 Release Notes +======================= + +Backward Compatibility Notes + + * "git checkout -B <branch>" used to allow switching to a branch that + is in use on another worktree, but this was by mistake. The users + need to use "--ignore-other-worktrees" option. + + +UI, Workflows & Features + + * "git add" and "git stash" learned to support the ":(attr:...)" + magic pathspec. + + * "git rebase --autosquash" is now enabled for non-interactive rebase, + but it is still incompatible with the apply backend. + + * Introduce "git replay", a tool meant on the server side without + working tree to recreate a history. + + * "git merge-file" learned to take the "--diff-algorithm" option to + use algorithm different from the default "myers" diff. + + * Command line completion (in contrib/) learned to complete path + arguments to the "add/set" subcommands of "git sparse-checkout" + better. + + * "git checkout -B <branch> [<start-point>]" allowed a branch that is + in use in another worktree to be updated and checked out, which + might be a bit unexpected. The rule has been tightened, which is a + breaking change. "--ignore-other-worktrees" option is required to + unbreak you, if you are used to the current behaviour that "-B" + overrides the safety. + + * The builtin_objectmode attribute is populated for each path + without adding anything in .gitattributes files, which would be + useful in magic pathspec, e.g., ":(attr:builtin_objectmode=100755)" + to limit to executables. + + * "git fetch" learned to pay attention to "fetch.all" configuration + variable, which pretends as if "--all" was passed from the command + line when no remote parameter was given. + + * In addition to (rather cryptic) Security Identifiers, show username + and domain in the error message when we barf on mismatch between + the Git directory and the current user on Windows. + + * The error message given when "git branch -d branch" fails due to + commits unique to the branch has been split into an error and a new + conditional advice message. + + * When given an existing but unreadable file as a configuration file, + gitweb behaved as if the file did not exist at all, but now it + errors out. This is a change that may break backward compatibility. + + * When $HOME/.gitconfig is missing but XDG config file is available, we + should write into the latter, not former. "git gc" and "git + maintenance" wrote into a wrong "global config" file, which have + been corrected. + + * Define "special ref" as a very narrow set that consists of + FETCH_HEAD and MERGE_HEAD, and clarify everything else that used to + be classified as such are actually just pseudorefs. + + * All conditional "advice" messages show how to turn them off, which + becomes repetitive. Setting advice.* configuration explicitly on + now omits the instruction part. + + * The "disable repository discovery of a bare repository" check, + triggered by setting safe.bareRepository configuration variable to + 'explicit', has been loosened to exclude the ".git/" directory inside + a non-bare repository from the check. So you can do "cd .git && + git cmd" to run a Git command that works on a bare repository without + explicitly specifying $GIT_DIR now. + + * The completion script (in contrib/) learned more options that can + be used with "git log". + + * The labels on conflict markers for the common ancestor, our version, + and the other version are available to custom 3-way merge driver + via %S, %X, and %Y placeholders. + + * The write codepath for the reftable data learned to honor + core.fsync configuration. + + * The "--fsck-objects" option of "git index-pack" now can take the + optional parameter to tweak severity of different fsck errors. + + * The wincred credential backend has been taught to support oauth + refresh token the same way as credential-cache and + credential-libsecret backends. + + * Command line completion support (in contrib/) has been + updated for "git bisect". + + * "git branch" and friends learned to use the formatted text as + sorting key, not the underlying timestamp value, when the --sort + option is used with author or committer timestamp with a format + specifier (e.g., "--sort=creatordate:format:%H:%M:%S"). + + * The command line completion script (in contrib/) learned to + complete configuration variable names better. + + +Performance, Internal Implementation, Development Support etc. + + * Process to add some form of low-level unit tests has started. + + * Add support for GitLab CI. + + * "git for-each-ref --no-sort" still sorted the refs alphabetically + which paid non-trivial cost. It has been redefined to show output + in an unspecified order, to allow certain optimizations to take + advantage of. + + * Simplify API implementation to delete references by eliminating + duplication. + + * Subject approxidate() and show_date() machinery to OSS-Fuzz. + + * A new helper to let us pretend that we called lstat() when we know + our cache_entry is up-to-date via fsmonitor. + + * The optimization based on fsmonitor in the "diff --cached" + codepath is resurrected with the "fake-lstat" introduced earlier. + + * Test balloon to use C99 "bool" type from <stdbool.h> has been + added. + + * "git clone" has been prepared to allow cloning a repository with + non-default hash function into a repository that uses the reftable + backend. + + * Streaming spans of packfile data used to be done only from a + single, primary, pack in a repository with multiple packfiles. It + has been extended to allow reuse from other packfiles, too. + + * Comment updates to help developers not to attempt to modify + messages from plumbing commands that must stay constant. + + It might make sense to reassess the plumbing needs every few years, + but that should be done as a separate effort. + + * Move test-ctype helper to the unit-test framework. + + * Instead of manually creating refs/ hierarchy on disk upon a + creation of a secondary worktree, which is only usable via the + files backend, use the refs API to populate it. + + * CI for GitLab learned to drive macOS jobs. + + * A few tests to "git commit -o <pathspec>" and "git commit -i + <pathspec>" has been added. + + * Tests on ref API are moved around to prepare for reftable. + + * The Makefile often had to say "-L$(path) -R$(path)" that repeats + the path to the same library directory for link time and runtime. + A Makefile template is used to reduce such repetition. + + * The priority queue test has been migrated to the unit testing + framework. + + * Setting `feature.experimental` opts the user into multi-pack reuse + experiment + + * Squelch node.js 16 deprecation warnings from GitHub Actions CI + by updating actions/github-script and actions/checkout that use + node.js 20. + + * The mechanism to report the filename in the source code, used by + the unit-test machinery, assumed that the compiler expanded __FILE__ + to the path to the source given to the $(CC), but some compilers + give full path, breaking the output. This has been corrected. + + +Fixes since v2.43 +----------------- + + * The way CI testing used "prove" could lead to running the test + suite twice needlessly, which has been corrected. + + * Update ref-related tests. + + * "git format-patch --encode-email-headers" ignored the option when + preparing the cover letter, which has been corrected. + + * Newer versions of Getopt::Long started giving warnings against our + (ab)use of it in "git send-email". Bump the minimum version + requirement for Perl to 5.8.1 (from September 2002) to allow + simplifying our implementation. + + * Earlier we stopped relying on commit-graph that (still) records + information about commits that are lost from the object store, + which has negative performance implications. The default has been + flipped to disable this pessimization. + + * Stale URLs have been updated to their current counterparts (or + archive.org) and HTTP links are replaced with working HTTPS links. + + * trace2 streams used to record the URLs that potentially embed + authentication material, which has been corrected. + + * The sample pre-commit hook that tries to catch introduction of new + paths that use potentially non-portable characters did not notice + an existing path getting renamed to such a problematic path, when + rename detection was enabled. + + * The command line parser for the "log" family of commands was too + loose when parsing certain numbers, e.g., silently ignoring the + extra 'q' in "git log -n 1q" without complaining, which has been + tightened up. + + * "git $cmd --end-of-options --rev -- --path" for some $cmd failed + to interpret "--rev" as a rev, and "--path" as a path. This was + fixed for many programs like "reset" and "checkout". + + * "git bisect reset" has been taught to clean up state files and refs + even when BISECT_START file is gone. + + * Some codepaths did not correctly parse configuration variables + specified with valueless "true", which has been corrected. + + * Code clean-up for sanity checking of command line options for "git + show-ref". + + * The code to parse the From e-mail header has been updated to avoid + recursion. + + * "git fetch --atomic" issued an unnecessary empty error message, + which has been corrected. + + * Command line completion script (in contrib/) learned to work better + with the reftable backend. + + * "git status" is taught to show both the branch being bisected and + being rebased when both are in effect at the same time. + + * "git archive --list extra garbage" silently ignored excess command + line parameters, which has been corrected. + + * "git sparse-checkout set" added default patterns even when the + patterns are being fed from the standard input, which has been + corrected. + + * "git sparse-checkout (add|set) --[no-]cone --end-of-options" did + not handle "--end-of-options" correctly after a recent update. + + * Unlike other environment variables that took the usual + true/false/yes/no as well as 0/1, GIT_FLUSH only understood 0/1, + which has been corrected. + + * Clearing in-core repository (happens during e.g., "git fetch + --recurse-submodules" with commit graph enabled) made in-core + commit object in an inconsistent state by discarding the necessary + data from commit-graph too early, which has been corrected. + + * Update to a new feature recently added, "git show-ref --exists". + + * oss-fuzz tests are built and run in CI. + (merge c4a9cf1df3 js/oss-fuzz-build-in-ci later to maint). + + * Rename detection logic ignored the final line of a file if it is an + incomplete line. + + * GitHub CI update. + (merge 0188b2c8e0 pb/ci-github-skip-logs-for-broken-tests later to maint). + + * "git diff --no-rename A B" did not disable rename detection but did + not trigger an error from the command line parser. + + * "git archive --remote=<remote>" learned to talk over the smart + http (aka stateless) transport. + (merge 176cd68634 jx/remote-archive-over-smart-http later to maint). + + * Fetching via protocol v0 over Smart HTTP transport sometimes failed + to correctly auto-follow tags. + (merge fba732c462 jk/fetch-auto-tag-following-fix later to maint). + + * The documentation for the --exclude-per-directory option marked it + as deprecated, which confused readers into thinking there may be a + plan to remove it in the future, which was not our intention. + (merge 0009542cab jc/ls-files-doc-update later to maint). + + * "git diff --no-index file1 file2" segfaulted while invoking the + external diff driver, which has been corrected. + + * Rewrite //-comments to /* comments */ in files whose comments + prevalently use the latter. + + * Cirrus CI jobs started breaking because we specified version of + FreeBSD that is no longer available, which has been corrected. + (merge 81fffb66d3 cb/use-freebsd-13-2-at-cirrus-ci later to maint). + + * A caller called index_file_exists() that takes a string expressed + as <ptr, length> with a wrong length, which has been corrected. + (merge 156e28b36d jh/sparse-index-expand-to-path-fix later to maint). + + * A failed "git tag -s" did not necessarily result in an error + depending on the crypto backend, which has been corrected. + + * "git stash" sometimes was silent even when it failed due to + unwritable index file, which has been corrected. + + * "git show-ref --verify" did not show things like "CHERRY_PICK_HEAD", + which has been corrected. + + * Recent conversion to allow more than 0/1 in GIT_FLUSH broke the + mechanism by flipping what yes/no means by mistake, which has been + corrected. + + * The sequencer machinery does not use the ref API and instead + records names of certain objects it needs for its correct operation + in temporary files, which makes these objects susceptible to loss + by garbage collection. These temporary files have been added as + starting points for reachability analysis to fix this. + (merge bc7f5db896 pw/gc-during-rebase later to maint). + + * "git cherry-pick" invoked during "git rebase -i" session lost + the authorship information, which has been corrected. + (merge e4301f73ff vn/rebase-with-cherry-pick-authorship later to maint). + + * The code paths that call repo_read_object_file() have been + tightened to react to errors. + (merge 568459bf5e js/check-null-from-read-object-file later to maint). + + * Other code cleanup, docfix, build fix, etc. + (merge 5aea3955bc rj/clarify-branch-doc-m later to maint). + (merge 9cce3be2df bk/bisect-doc-fix later to maint). + (merge 8430b438f6 vd/fsck-submodule-url-test later to maint). + (merge 3cb4384683 jc/t0091-with-unknown-git later to maint). + (merge 020456cb74 rs/receive-pack-remove-find-header later to maint). + (merge bc47139f4f la/trailer-cleanups later to maint). |