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diff --git a/Documentation/RelNotes/2.47.0.txt b/Documentation/RelNotes/2.47.0.txt new file mode 100644 index 0000000000..b63c3364af --- /dev/null +++ b/Documentation/RelNotes/2.47.0.txt @@ -0,0 +1,342 @@ +Git v2.47 Release Notes +======================= + +UI, Workflows & Features +------------------------ + + * Many Porcelain commands that internally use the merge machinery + were taught to consistently honor the diff.algorithm configuration. + + * A few descriptions in "git show-ref -h" have been clarified. + + * A 'P' command to "git add -p" that passes the patch hunk to the + pager has been added. + + * "git grep -W" omits blank lines that follow the found function at + the end of the file, just like it omits blank lines before the next + function. + + * The value of http.proxy can have "path" at the end for a socks + proxy that listens to a unix-domain socket, but we started to + discard it when we taught proxy auth code path to use the + credential helpers, which has been corrected. + + * The code paths to compact multiple reftable files have been updated + to correctly deal with multiple compaction triggering at the same + time. + + * Support to specify ref backend for submodules has been enhanced. + + * "git svn" has been taught about svn:global-ignores property + recent versions of Subversion has. + + * The default object hash and ref backend format used to be settable + only with explicit command line option to "git init" and + environment variables, but now they can be configured in the user's + global and system wide configuration. + + * "git send-email" learned "--translate-aliases" option that reads + addresses from the standard input and emits the result of applying + aliases on them to the standard output. + + * 'git for-each-ref' learned a new "--format" atom to find the branch + that the history leading to a given commit "%(is-base:<commit>)" is + likely based on. + + * The command line prompt support used to be littered with bash-isms, + which has been corrected to work with more shells. + + * Support for the RUNTIME_PREFIX feature has been added to z/OS port. + + * "git send-email" learned "--mailmap" option to allow rewriting the + recipient addresses. + + * "git mergetool" learned to use VSCode as a merge backend. + + * "git pack-redundant" has been marked for removal in Git 3.0. + + * One-line messages to "die" and other helper functions will get LF + added by these helper functions, but many existing messages had an + unnecessary LF at the end, which have been corrected. + + * The "scalar clone" command learned the "--no-tags" option. + + * The environment GIT_ADVICE has been intentionally kept undocumented + to discourage its use by interactive users. Add documentation to + help tool writers. + + * "git apply --3way" learned to take "--ours" and other options. + + +Performance, Internal Implementation, Development Support etc. +-------------------------------------------------------------- + + * A build tweak knob has been simplified by not setting the value + that is already the default; another unused one has been removed. + + * A CI job that use clang-format to check coding style issues in new + code has been added. + + * The reviewing guidelines document now explicitly encourages people + to give positive reviews and how. + + * Test script linter has been updated to catch an attempt to use + one-shot export construct "VAR=VAL func" for shell functions (which + does not work for some shells) better. + + * Some project conventions have been added to CodingGuidelines. + + * In the refs subsystem, implicit reliance of the_repository has been + eliminated; the repository associated with the ref store object is + used instead. + + * Various tests in reftable library have been rewritten using the unit test + framework. + + * A test that fails on an unusually slow machine was found, and made + less likely to cause trouble by lengthening the expiry value it + uses. + + * An existing test of hashmap API has been rewritten with the + unit-test framework. + + * A policy document that describes platform support levels and + expectation on platform stakeholders has been introduced. + + * The refs API has been taught to give symref target information to + the users of ref iterators, allowing for-each-ref and friends to + avoid an extra ref_resolve_* API call per a symbolic ref. + + * Unit-test framework has learned a simple control structure to allow + embedding test statements in-line instead of having to create a new + function to contain them. + + * Incremental updates of multi-pack index files is getting worked on. + + * Use of API functions that implicitly depend on the_repository + object in the config subsystem has been rewritten to pass a + repository object through the callchain. + + * Unused parameters have been either marked as UNUSED to squelch + -Wunused warnings or dropped from many functions.. + + * The code in the reftable library has been cleaned up by discarding + unused "generic" interface. + + * The underlying machinery for "git diff-index" has long been made to + expand the sparse index as needed, but the command fully expanded + the sparse index upfront, which now has been taught not to do. + + * More trace2 events at key points on push and fetch code paths have + been added. + + * Make our codebase compilable with the -Werror=unused-parameter + option. + + * "git cat-file" works well with the sparse-index, and gets marked as + such. + + * CI started failing completely for linux32 jobs, as the step to + upload failed test directory uses GitHub actions that is deprecated + and is now disabled. + + * Import clar unit tests framework libgit2 folks invented for our + use. + + * The error messages from the test script checker have been improved. + + * The convention to calling into built-in command implementation has + been updated to pass the repository, if known, together with the + prefix value. + + * "git apply" had custom buffer management code that predated before + use of strbuf got widespread, which has been updated to use strbuf, + which also plugged some memory leaks. + + * The reftable backend learned to more efficiently handle exclude + patterns while enumerating the refs. + + * CI updates. FreeBSD image has been updated to 13.4. + (merge 2eeb29702e cb/ci-freebsd-13-4 later to maint). + + * Give timeout to the locking code to write to reftable, instead of + failing on the first failure without retrying. + + * The checksum at the tail of files are now computed without + collision detection protection. This is safe as the consumer of + the information to protect itself from replay attacks checks for + hash collisions independently. + + +Fixes since v2.46 +----------------- + + * "git add -p" by users with diff.suppressBlankEmpty set to true + failed to parse the patch that represents an unmodified empty line + with an empty line (not a line with a single space on it), which + has been corrected. + + * "git checkout --ours" (no other arguments) complained that the + option is incompatible with branch switching, which is technically + correct, but found confusing by some users. It now says that the + user needs to give pathspec to specify what paths to checkout. + + * It has been documented that we avoid "VAR=VAL shell_func" and why. + + * "git rebase --help" referred to "offset" (the difference between + the location a change was taken from and the change gets replaced) + incorrectly and called it "fuzz", which has been corrected. + + * "git notes add -m '' --allow-empty" and friends that take prepared + data to create notes should not invoke an editor, but it started + doing so since Git 2.42, which has been corrected. + + * An expensive operation to prepare tracing was done in re-encoding + code path even when the tracing was not requested, which has been + corrected. + + * More leakfixes. + + * The credential helper to talk to OSX keychain sometimes sent + garbage bytes after the username, which has been corrected. + + * A recent update broke "git ls-remote" used outside a repository, + which has been corrected. + + * The patch parser in 'git apply' has been a bit more lenient against + unexpected mode bits, like 100664, recorded on extended header lines. + + * "git config --value=foo --fixed-value section.key newvalue" barfed + when the existing value in the configuration file used the + valueless true syntax, which has been corrected. + + * The patch parser in "git patch-id" has been tightened to avoid + getting confused by lines that look like a patch header in the log + message. + + * "git reflog expire" failed to honor annotated tags when computing + reachable commits. + + * A flakey test and incorrect calls to strtoX() functions have been + fixed. + + * Follow-up on 2.45.1 regression fix. + + * "git rev-list ... | git diff-tree -p --remerge-diff --stdin" should + behave more or less like "git log -p --remerge-diff" but instead it + crashed, forgetting to prepare a temporary object store needed. + + * "git bundle unbundle" outside a repository triggered a BUG() + unnecessarily, which has been corrected. + + * Maintenance tasks other than "gc" now properly go background when + "git maintenance" runs them. + + * We created a useless pseudo-merge reachability bitmap that is about + 0 commits, and attempted to include commits that are not in packs, + which made no sense. These bugs have been corrected. + (merge a72dfab8b8 tb/pseudo-merge-bitmap-fixes later to maint). + + * "git rebase -x --quiet" was not quiet, which was corrected. + + * The code path for compacting reftable files saw some bugfixes + against concurrent operation. + + * The code forgot to discard unnecessary in-core commit buffer data + for commits that "git log --skip=<number>" traversed but omitted + from the output, which has been corrected. + + * "git verify-pack" and "git index-pack" started dying outside a + repository, which has been corrected. + + * A data corruption bug when multi-pack-index is used and the same + objects are stored in multiple packfiles has been corrected. + + * "git pack-refs --auto" for the files backend was too aggressive, + which has been a bit tamed. + (merge c3459ae9ef ps/pack-refs-auto-heuristics later to maint). + + * A file descriptor left open is now properly closed when "git + sparse-checkout" updates the sparse patterns. + + * In a few corner cases "git diff --exit-code" failed to report + "changes" (e.g., renamed without any content change), which has + been corrected. + + * Cygwin does have /dev/tty support that is needed by things like + single-key input mode. + + * The interpret-trailers command failed to recognise the end of the + message when the commit log ends in an incomplete line. + + * "git rebase --autostash" failed to resurrect the autostashed + changes when the command gets aborted after giving back control + asking for hlep in conflict resolution. + (merge bf6ab087d1 pw/rebase-autostash-fix later to maint). + + * The "imap-send" now allows to be compiled with NO_OPENSSL and + OPENSSL_SHA1 defined together. + (merge 997950a750 jk/no-openssl-with-openssl-sha1 later to maint). + + * The support to customize build options to adjust for older versions + and/or older systems for the interop tests has been improved. + (merge 22ef5f02a8 jk/interop-test-build-options later to maint). + + * Update the character width table for Unicode 16. + (merge 44dc651132 bb/unicode-width-table-16 later to maint). + + * In Git 2.39, Git.pm stopped working in a bare repository, which has + been corrected. + (merge d3edb0bdde jk/git-pm-bare-repo-fix later to maint). + + * When a remote-helper dies before Git writes to it, SIGPIPE killed + Git silently. We now explain the situation a bit better to the end + user in our error message. + (merge 6e7fac9bca jk/diag-unexpected-remote-helper-death later to maint). + + * A few usability fixes to "git jump" (in contrib/). + (merge 083b82544d jk/jump-quickfix-fixes later to maint). + + * "git diff --exit-code" ignored modified binary files, which has + been corrected. + (merge 9a41735af6 rs/diff-exit-code-binary later to maint). + + * When a subprocess to work in a submodule spawned by "git submodule" + fails with SIGPIPE, the parent Git process caught the death of it, + but gave a generic "failed to work in that submodule", which was + misleading. We now behave as if the parent got SIGPIPE and die. + (merge 082caf527e pw/submodule-process-sigpipe later to maint). + + * "git archive" with pathspec magic that uses the attribute + information did not work well, which has been corrected. + (merge 296743a7ca rs/archive-with-attr-pathspec-fix later to maint). + + * Background tasks "git maintenance" runs may need to use credential + information when going over the network, but a credential helper + may work only in an interactive environment, and end up blocking a + scheduled task waiting for UI. Credential helpers can now behave + differently when they are not running interactively. + (merge b9183b0a02 ds/background-maintenance-with-credential later to maint). + + * "git --git-dir=nowhere cmd" failed to properly notice that it + wasn't in any repository while processing includeIf.onbranch + configuration and instead crashed. + + * When "git sparse-checkout disable" turns a sparse checkout into a + regular checkout, the index is fully expanded. This totally + expected behaviour however had an "oops, we are expanding the + index" advice message, which has been corrected. + (merge 537e516a39 ds/sparse-checkout-expansion-advice later to maint). + + * macOS with fsmonitor daemon can hang forever when a submodule is + involved, which has been corrected. + + * Other code cleanup, docfix, build fix, etc. + (merge be10ac7037 jc/mailinfo-header-cleanup later to maint). + (merge 4460e052e0 jc/range-diff-lazy-setup later to maint). + (merge 0627c58e7a ak/typofixes later to maint). + (merge 83799f1500 jk/t9001-deflake later to maint). + (merge e02cc08a88 ak/typofix-2.46-maint later to maint). + (merge 5c5d29e1c4 ps/ci-gitlab-upgrade later to maint). + (merge 9c4c840901 jc/doc-discarding-stalled-topics later to maint). + (merge 5e6f359f6b ds/read-cache-mempool-leakfix later to maint). |