Git 2.28 Release Notes ====================== Updates since v2.27 ------------------- Backward compatibility notes * "feature.experimental" configuration variable is to let volunteers easily opt into a set of newer features, which use of the v2 transport protocol is now a part of. * It used to be that setting extensions.* configuration variables alone, while leaving core.repositoryFormatVersion=0, made these settings effective, which was a wrong thing to do. In version 0, there was no special meaning in extensions.* configuration variables. This has been corrected. If you need these repository extensions to be effective, the core.repositoryFormatVersion variable needs to be updated to 1 after vetting these extensions.* variables are set correctly. UI, Workflows & Features * The commands in the "diff" family learned to honor "diff.relative" configuration variable. * The check in "git fsck" to ensure that the tree objects are sorted still had corner cases it missed unsorted entries. * The interface to redact sensitive information in the trace output has been simplified. * The command line completion (in contrib/) learned to complete options that the "git switch" command takes. * "git diff" used to take arguments in random and nonsense range notation, e.g. "git diff A..B C", "git diff A..B C...D", etc., which has been cleaned up. * "git diff-files" has been taught to say paths that are marked as intent-to-add are new files, not modified from an empty blob. Performance, Internal Implementation, Development Support etc. * Code optimization for a common case. (merge 8777616e4d an/merge-single-strategy-optim later to maint). * We've adopted a convention that any on-stack structure can be initialized to have zero values in all fields with "= { 0 }", even when the first field happens to be a pointer, but sparse complained that a null pointer should be spelled NULL for a long time. Start using -Wno-universal-initializer option to squelch it (the latest sparse has it on by default). * "git log -L..." now takes advantage of the "which paths are touched by this commit?" info stored in the commit-graph system. * As FreeBSD is not the only platform whose regexp library reports a REG_ILLSEQ error when fed invalid UTF-8, add logic to detect that automatically and skip the affected tests. * "git bugreport" learns to report what shell is in use. * Support for GIT_CURL_VERBOSE has been rewritten in terms of GIT_TRACE_CURL. * Preliminary clean-ups around refs API, plus file format specification documentation for the reftable backend. * Workaround breakage in MSVC build, where "curl-config --cflags" gives settings appropriate for GCC build. * Code clean-up of "git clean" resulted in a fix of recent performance regression. * Code clean-up in the codepath that serves "git fetch" continues. * "git merge-base --is-ancestor" is taught to take advantage of the commit graph. * Rewrite of parts of the scripted "git submodule" Porcelain command continues; this time it is "git submodule set-branch" subcommand's turn. * The "fetch/clone" protocol has been updated to allow the server to instruct the clients to grab pre-packaged packfile(s) in addition to the packed object data coming over the wire. * A misdesigned strbuf_write_fd() function has been retired. Fixes since v2.27 ----------------- * The "--prepare-p4-only" option of "git p4" is supposed to stop after replaying one changeset, but kept going (by mistake?) * The error message from "git checkout -b foo -t bar baz" was confusing. * Some repositories in the wild have commits that record nonsense committer timezone (e.g. rails.git); "git fast-import" learned an option to pass these nonsense timestamps intact to allow recreating existing repositories as-is. (merge d42a2fb72f en/fast-import-looser-date later to maint). * The command line completion script (in contrib/) tried to complete "git stash -p" as if it were "git stash push -p", but it was too aggressive and also affected "git stash show -p", which has been corrected. (merge fffd0cf520 vs/complete-stash-show-p-fix later to maint). * On-the-wire protocol v2 easily falls into a deadlock between the remote-curl helper and the fetch-pack process when the server side prematurely throws an error and disconnects. The communication has been updated to make it more robust. * "git checkout -p" did not handle a newly added path at all. (merge 2c8bd8471a js/checkout-p-new-file later to maint). * The code to parse "git bisect start" command line was lax in validating the arguments. (merge 4d9005ff5d cb/bisect-helper-parser-fix later to maint). * Reduce memory usage during "diff --quiet" in a worktree with too many stat-unmatched paths. (merge d2d7fbe129 jk/diff-memuse-optim-with-stat-unmatch later to maint). * The reflog entries for "git clone" and "git fetch" did not anonymize the URL they operated on. (merge 46da295a77 js/reflog-anonymize-for-clone-and-fetch later to maint). * The behaviour of "sparse-checkout" in the state "git clone --no-checkout" left was changed accidentally in 2.27, which has been corrected. * Use of negative pathspec, while collecting paths including untracked ones in the working tree, was broken. * The same worktree directory must be registered only once, but "git worktree move" allowed this invariant to be violated, which has been corrected. (merge 810382ed37 es/worktree-duplicate-paths later to maint). * The effect of sparse checkout settings on submodules is documented. (merge e7d7c73249 en/sparse-with-submodule-doc later to maint). * Code clean-up around "git branch" with a minor bugfix. (merge dc44639904 dl/branch-cleanup later to maint). * A branch name used in a test has been clarified to match what is going on. (merge 08dc26061f pb/t4014-unslave later to maint). * An in-code comment in "git diff" has been updated. (merge c592fd4c83 dl/diff-usage-comment-update later to maint). * Other code cleanup, docfix, build fix, etc. (merge 2c31a7aa44 jx/pkt-line-doc-count-fix later to maint). (merge d63ae31962 cb/t5608-cleanup later to maint). (merge 788db145c7 dl/t-readme-spell-git-correctly later to maint). (merge 45a87a83bb dl/python-2.7-is-the-floor-version later to maint). (merge b75a219904 es/advertise-contribution-doc later to maint). (merge 0c9a4f638a rs/pull-leakfix later to maint). (merge d546fe2874 rs/commit-reach-leakfix later to maint).