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diff --git a/Documentation/RelNotes/2.41.0.txt b/Documentation/RelNotes/2.41.0.txt new file mode 100644 index 0000000..8a9e170 --- /dev/null +++ b/Documentation/RelNotes/2.41.0.txt @@ -0,0 +1,399 @@ +Git v2.41 Release Notes +======================= + +UI, Workflows & Features + + * Allow information carried on the WWW-Authenticate header to be + passed to the credential helpers. + + * A new "fetch.hideRefs" option can be used to exclude specified refs + from "rev-list --objects --stdin --not --all" traversal for + checking object connectivity, most useful when there are many + unrelated histories in a single repository. + + * "git push" has been taught to allow deletion of refs with one-level + names to help repairing a repository who acquired such a ref by + mistake. In general, we don't encourage use of such a ref, and + creation or update to such a ref is rejected as before. + + * Allow "git bisect reset" to check out the original branch when the + branch is already checked out in a different worktree linked to the + same repository. + + * A few subcommands have been taught to stop users from working on a + branch that is being used in another worktree linked to the same + repository. + + * "git format-patch" learned to write a log-message only output file + for empty commits. + + * "git format-patch" honors the src/dst prefixes set to nonstandard + values with configuration variables like "diff.noprefix", causing + receiving end of the patch that expects the standard -p1 format to + break. "format-patch" has been taught to ignore end-user configuration + and always use the standard prefixes. + + This is a backward compatibility breaking change. + + * Lift the limitation that colored prompts can only be used with + PROMPT_COMMAND mode. + + * "git blame --contents=<file> <rev> -- <path>" used to be forbidden, + but now it finds the origins of lines starting at <file> contents + through the history that leads to <rev>. + + * "git pack-redundant" gave a warning when run, as the command has + outlived its usefulness long ago and is nominated for future + removal. Now we escalate to give an error. + + * "git clone" from an empty repository learned to propagate the + choice of the hash algorithm from the source repository to the + newly created repository over any one of the v0/v1/v2 protocol. + + * "git mergetool" and "git difftool" learns a new configuration + guiDefault to optionally favor configured guitool over non-gui-tool + automatically when $DISPLAY is set. + + * "git branch -d origin/master" would say "no such branch", but it is + likely a missed "-r" if refs/remotes/origin/master exists. The + command has been taught to give such a hint in its error message. + + * Clean-up of the code path that deals with merge strategy option + handling in "git rebase". + + * "git clone --local" stops copying from an original repository that + has symbolic links inside its $GIT_DIR; an error message when that + happens has been updated. + + * The "--format=..." option of "git for-each-ref", "git branch", and + "git tag" commands learn "--omit-empty" to hide refs whose + formatting results in an empty string from the output. + + * The sendemail-validate validate hook learned to pass the total + number of input files and where in the sequence each invocation is + via environment variables. + + * When "gc" needs to retain unreachable objects, packing them into + cruft packs (instead of exploding them into loose object files) has + been offered as a more efficient option for some time. Now the use + of cruft packs has been made the default and no longer considered + an experimental feature. + + * The output given by "git blame" that attributes a line to contents + taken from the file specified by the "--contents" option shows it + differently from a line attributed to the working tree file. + + * "git send-email" learned to give the e-mail headers to the validate + hook by passing an extra argument from the command line. + + * The credential subsystem learns to help OAuth framework. + + * The titles of manual pages used to be chomped at an unreasonably + short limit, which has been removed. + + * Error messages given when working on an unborn branch that is + checked out in another worktree have been improved. + + * The documentation was misleading about the interaction between + GIT_DEFAULT_HASH and "git clone", which has been clarified to + stress that the variable is to be ignored by the command. + + * "git send-email" learned "--header-cmd=<cmd>" that can inject + arbitrary e-mail header lines to the outgoing messages. + + * "git fsck" learned to detect bit-flip breakages in the reachability + bitmap files. + + * The "--stdin" option of "git name-rev" has been replaced with + the "--annotate-stdin" option more than a year ago. We stop + advertising it in the "git name-rev -h" output. + + * "git push --all" gained an alias "git push --branches". + + * "git fetch" learned the "--porcelain" option that emits what it did + in a machine-parseable format. + + * "git --attr-source=<tree> cmd $args" is a new way to have any + command to read attributes not from the working tree but from the + given tree object. + + +Performance, Internal Implementation, Development Support etc. + + * Code clean-up to clarify directory traversal API. + + * Code clean-up to clarify the rule that "git-compat-util.h" must be + the first to be included. + + * More work towards -Wunused. + + * Instead of forcing each command to choose to honor GPG related + configuration variables, make the subsystem lazily initialize + itself. + + * Remove workaround for ancient versions of DocBook to make it work + correctly with groff, which has not been necessary since docbook + 1.76 from 2010. + + * Code clean-up to include and/or uninclude parse-options.h file as + needed. + + * The code path that reports what "git fetch" did to each ref has + been cleaned up. + + * Assorted config API updates. + + * A few configuration variables to tell the cURL library that + different types of ssl-cert and ssl-key are in use have been added. + + * Split key function and data structure definitions out of cache.h to + new header files and adjust the users. + + * "git fetch --all" does not have to download and handle the same + bundleURI over and over, which has been corrected. + + * "git sparse-checkout" command learns a debugging aid for the sparse + rule definitions. + + * "git write-tree" learns to work better with sparse-index. + + * The on-disk reverse index that allows mapping from the pack offset + to the object name for the object stored at the offset has been + enabled by default. + + * "git fsck" learned to validate the on-disk pack reverse index files. + + * strtok() and strtok_r() are banned in this codebase. + + * The detect-compilers script to help auto-tweaking the build system + had trouble working with compilers whose version number has extra + suffixes. The script has been taught that certain suffixes (like + "-win32" in "gcc 10-win32") can be safely stripped as they share + the same features and bugs with the version without the suffix. + + * ctype tests have been taught to test EOF, too. + + * The implementation of credential helpers used fgets() over fixed + size buffers to read protocol messages, causing the remainder of + the folded long line to trigger unexpected behaviour, which has + been corrected. + + * The implementation of the default "negotiator", used to find common + ancestor over the network for object tranfer, used to be recursive; + it was updated to be iterative to conserve stackspace usage. + + * Our custom callout formatter is no longer used in the documentation + formatting toolchain, as the upstream default ones give better + output these days. + + * The tracing mechanism learned to notice and report when + auto-discovered bare repositories are being used, as allowing so + without explicitly stating the user intends to do so (with setting + GIT_DIR for example) can be used with social engineering as an + attack vector. + + * "git diff-files" learned not to expand sparse-index unless needed. + + +Fixes since v2.40 +----------------- + + * "git fsck" learned to check the index files in other worktrees, + just like "git gc" honors them as anchoring points. + (merge 8d3e7eac52 jk/fsck-indices-in-worktrees later to maint). + + * Fix a segfaulting loop. The function and its caller may need + further clean-up. + (merge c5773dc078 ew/commit-reach-clean-up-flags-fix later to maint). + + * "git restore" supports options like "--ours" that are only + meaningful during a conflicted merge, but these options are only + meaningful when updating the working tree files. These options are + marked to be incompatible when both "--staged" and "--worktree" are + in effect. + (merge ee8a88826a ak/restore-both-incompatible-with-conflicts later to maint). + + * Simplify UI to control progress meter given by "git bundle" command. + (merge 8b95521edb jk/bundle-progress later to maint). + + * "git bundle" learned that "-" is a common way to say that the input + comes from the standard input and/or the output goes to the + standard output. It used to work only for output and only from the + root level of the working tree. + (merge 0bbe10313e jk/bundle-use-dash-for-stdfiles later to maint). + + * Once we start running, we assumed that the list of alternate object + databases would never change. Hook into the machinery used to + update the list of packfiles during runtime to update this list as + well. + (merge e2d003dbed ds/reprepare-alternates-when-repreparing-packfiles later to maint). + + * The code to parse "git rebase -X<opt>" was not prepared to see an + unparsable option string, which has been corrected. + (merge 15a4cc912e ab/fix-strategy-opts-parsing later to maint). + + * "git add -p" while the index is unmerged sometimes failed to parse + the diff output it internally produces and died, which has been + corrected. + (merge 28d1122f9c jk/add-p-unmerged-fix later to maint). + + * Fix for a "ls-files --format="%(path)" that produced nonsense + output, which was a bug in 2.38. + (merge cfb62dd006 aj/ls-files-format-fix later to maint). + + * "git receive-pack" that responds to "git push" requests failed to + clean a stale lockfile when killed in the middle, which has been + corrected. + (merge c55c30669c ps/receive-pack-unlock-before-die later to maint). + + * "git rev-parse --quiet foo@{u}", or anything that asks @{u} to be + parsed with GET_OID_QUIETLY option, did not quietly fail, which has + been corrected. + (merge dfbfdc521d fc/oid-quietly-parse-upstream later to maint). + + * Transports that do not support protocol v2 did not correctly fall + back to protocol v0 under certain conditions, which has been + corrected. + (merge eaa0fd6584 jk/fix-proto-downgrade-to-v0 later to maint). + + * time(2) on glib 2.31+, especially on Linux, goes out of sync with + higher resolution timers used for gettimeofday(2) and by the + filesystem. Replace all calls to it with a git_time() wrapper and + (merge 370ddcbc89 pe/time-use-gettimeofday later to maint). + + * Code clean-up to use designated initializers in parse-options API. + (merge 353e6d4554 sg/parse-options-h-initializers later to maint). + + * A recent-ish change to allow unicode character classes to be used + with "grep -P" triggered a JIT bug in older pcre2 libraries. + The problematic change in Git built with these older libraries has + been disabled to work around the bug. + (merge 14b9a04479 mk/workaround-pcre-jit-ucp-bug later to maint). + + * The wildmatch library code unlearns exponential behaviour it + acquired some time ago since it was borrowed from rsync. + (merge 3dc0b7f0dc pw/wildmatch-fixes later to maint). + + * The index files can become corrupt under certain conditions when + the split-index feature is in use, especially together with + fsmonitor, which have been corrected. + (merge 061dd722dc js/split-index-fixes later to maint). + + * Document what the pathname-looking strings in "rev-list --object" + output are for and what they mean. + (merge 15364d2a3c jk/document-rev-list-object-name later to maint). + + * Fix unnecessary truncation of generation numbers used in-core. + (merge d3af1c193d ps/ahead-behind-truncation-fix later to maint). + + * Code clean-up around the use of the_repository. + (merge 4a93b899c1 ab/remove-implicit-use-of-the-repository later to maint). + + * Consistently spell "Message-ID" as such, not "Message-Id". + (merge ba4324c4e1 jc/spell-id-in-both-caps-in-message-id later to maint). + + * Correct use of an uninitialized structure member. + (merge dc12ee77ab jx/cap-object-info-uninitialized-fix later to maint). + + * Tests had a few places where we ignored PERL_PATH and blindly used + /usr/bin/perl, which have been corrected. + (merge c1917156a0 jk/use-perl-path-consistently later to maint). + + * Documentation mark-up fix. + (merge 78b6369e67 la/mfc-markup-fix later to maint). + + * Doc toolchain update to remove old workaround for AsciiDoc. + (merge 8806120de6 fc/remove-header-workarounds-for-asciidoc later to maint). + + * The userdiff regexp patterns for various filetypes that are built + into the system have been updated to avoid triggering regexp errors + from UTF-8 aware regex engines. + (merge be39144954 rs/userdiff-multibyte-regex later to maint). + + * The approxidate() API has been simplified by losing an extra + function that did the same thing as another one. + (merge 8a7f0b666f rs/remove-approxidate-relative later to maint). + + * Code clean-up to replace a hardcoded constant with a CPP macro. + (merge c870de6502 rs/get-tar-commit-id-use-defined-const later to maint). + + * Doc build simplification. + (merge 9a09ed3229 fc/doc-stop-using-manversion later to maint). + + * "git archive" run from a subdirectory mishandled attributes and + paths outside the current directory. + (merge 92b1dd1b9e rs/archive-from-subdirectory-fixes later to maint). + + * The code to parse capability list for v0 on-wire protocol fell into + an infinite loop when a capability appears multiple times, which + has been corrected. + + * Geometric repacking ("git repack --geometric=<n>") in a repository + that borrows from an alternate object database had various corner + case bugs, which have been corrected. + (merge d85cd18777 ps/fix-geom-repack-with-alternates later to maint). + + * The "%GT" placeholder for the "--format" option of "git log" and + friends caused BUG() to trigger on a commit signed with an unknown + key, which has been corrected. + (merge 7891e46585 jk/gpg-trust-level-fix later to maint). + + * The completion script used to use bare "read" without the "-r" + option to read the contents of various state files, which risked + getting confused with backslashes in them. This has been + corrected. + (merge 197152098a ek/completion-use-read-r-to-read-literally later to maint). + + * A small API fix to the ort merge strategy backend. + (merge 000c4ceca7 en/ort-finalize-after-0-merges-fix later to maint). + + * The commit object parser has been taught to be a bit more lenient + to parse timestamps on the author/committer line with a malformed + author/committer ident. + (merge 90ef0f14eb jk/parse-commit-with-malformed-ident later to maint). + + * Retitle a test script with an overly narrow name. + (merge 8bb19c14fb ob/t3501-retitle later to maint). + + * Doc update to clarify how text and eol attributes interact to + specify the end-of-line conversion. + (merge 6696077ace ah/doc-attributes-text later to maint). + + * Gitk updates from GfW project. + (merge 99e70f3077 js/gitk-fixes-from-gfw later to maint). + + * "git diff --dirstat" leaked memory, which has been plugged. + (merge 83973981eb jc/dirstat-plug-leaks later to maint). + + * "git merge-tree" reads the basic configuration, which can be used + by git forges to disable replace-refs feature. + (merge b6551feadf ds/merge-tree-use-config later to maint). + + * A few bugs in the sequencer machinery that results in miscounting + the steps have been corrected. + (merge 170eea9750 js/rebase-count-fixes later to maint). + + * Other code cleanup, docfix, build fix, etc. + (merge f7111175df as/doc-markup-fix later to maint). + (merge 90ff7c9898 fc/test-aggregation-clean-up later to maint). + (merge 9b0c7f308a jc/am-doc-refer-to-format-patch later to maint). + (merge b10cbdac4c bb/unicode-width-table-15 later to maint). + (merge 3457b50e8c ab/retire-scripted-add-p later to maint). + (merge d52fcf493b ds/p2000-fix-grep-sparse later to maint). + (merge ec063d2591 ss/hashmap-typofix later to maint). + (merge 1aaed69d11 rs/archive-mtime later to maint). + (merge 2da2cc9b28 ob/rollback-after-commit-lock-failure later to maint). + (merge 54dbd0933b ob/sequencer-save-head-simplify later to maint). + (merge a93cbe8d78 ar/test-cleanup-unused-file-creation later to maint). + (merge cc48ddd937 jk/chainlint-fixes later to maint). + (merge 4833b08426 ow/ref-format-remove-unused-member later to maint). + (merge d0ea2ca1cf dw/doc-submittingpatches-grammofix later to maint). + (merge fd72637423 ar/t2024-checkout-output-fix later to maint). + (merge d45cbe3fe0 ob/sequencer-i18n-fix later to maint). + (merge b734fe49fd ob/messages-capitalize-exception later to maint). + (merge ad353d7e77 ma/gittutorial-fixes later to maint). + (merge a5855fd8d4 ar/test-cleanup-unused-file-creation-part2 later to maint). + (merge 0c5308af30 sd/doc-gitignore-and-rm-cached later to maint). + (merge cbb83daeaf kh/doc-interpret-trailers-updates later to maint). + (merge 3d77fbb664 ar/config-count-tests-updates later to maint). + (merge b7cf25c8f4 jc/t9800-fix-use-of-show-s-raw later to maint). |