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Diffstat (limited to 'Documentation/RelNotes/2.4.0.txt')
| -rw-r--r-- | Documentation/RelNotes/2.4.0.txt | 149 |
1 files changed, 148 insertions, 1 deletions
diff --git a/Documentation/RelNotes/2.4.0.txt b/Documentation/RelNotes/2.4.0.txt index 072309e..386c75d 100644 --- a/Documentation/RelNotes/2.4.0.txt +++ b/Documentation/RelNotes/2.4.0.txt @@ -1,6 +1,41 @@ Git 2.4 Release Notes ===================== +Backward compatibility warning(s) +--------------------------------- + +This release has a few changes in the user-visible output from +Porcelain commands, which the users may want to be aware of. + + * Output from "git log --decorate" (and "%d" format specifier used in + the userformat "--format=<string>" parameter "git log" family of + command takes) used to list "HEAD" just like other tips of branch + names, separated with a comma in between. E.g. + + $ git log --decorate -1 master + commit bdb0f6788fa5e3cacc4315e9ff318a27b2676ff4 (HEAD, master) + ... + + This release updates the output slightly when HEAD refers to the tip + of a branch whose name is also shown in the output. The above is + shown as: + + $ git log --decorate -1 master + commit bdb0f6788fa5e3cacc4315e9ff318a27b2676ff4 (HEAD -> master) + ... + + * The phrasing "git branch" uses to describe a detached HEAD has been + updated to match that of "git status": + + - When the HEAD is at the same commit as it was originally + detached, they now both show "detached at <commit object name>". + + - When the HEAD has moved since it was originally detached, + they now both show "detached from <commit object name>". + + Earlier "git branch" always used "from" + + Updates since v2.3 ------------------ @@ -13,6 +48,11 @@ Ports * We did not check the curl library version before using CURLOPT_PROXYAUTH feature that may not exist. + * We now detect number of CPUs on older BSD-derived systems. + + * Portability fixes and workarounds for shell scripts have been added + to help BSD-derived systems. + UI, Workflows & Features @@ -53,6 +93,37 @@ UI, Workflows & Features * "git archive" can now be told to set the 'text' attribute in the resulting zip archive. + * Output from "git log --decorate" mentions HEAD when it points at a + tip of an branch differently from a detached HEAD. + + This is a potentially backward-incompatible change. + + * "git branch" on a detached HEAD always said "(detached from xyz)", + even when "git status" would report "detached at xyz". The HEAD is + actually at xyz and haven't been moved since it was detached in + such a case, but the user cannot read what the current value of + HEAD is when "detached from" is used. + + * "git -C '' subcmd" refused to work in the current directory, unlike + "cd ''" which silently behaves as a no-op. + (merge 6a536e2 kn/git-cd-to-empty later to maint). + + * The versionsort.prerelease configuration variable can be used to + specify that v1.0-pre1 comes before v1.0. + + * A new "push.followTags" configuration turns the "--follow-tags" + option on by default for the "git push" command. + + * "git log --graph --no-walk A B..." is a conflicting request that + asks nonsense; no-walk tells us show discrete points in the + history, while graph asks to draw connections between these + discrete points. Forbid the combination. + + * "git rev-list --bisect --first-parent" does not work (yet) and can + even cause SEGV; forbid it. "git log --bisect --first-parent" + would not be useful until "git bisect --first-parent" materializes, + so it is also forbidden for now. + Performance, Internal Implementation, Development Support etc. @@ -101,6 +172,20 @@ Performance, Internal Implementation, Development Support etc. * Simplify the ref transaction API around how "the ref should be pointing at this object" is specified. + * Code in "git daemon" to parse out and hold hostnames used in + request interpolation has been simplified. + + * "git push" codepath has been restructured to make it easier to add + new configuration bits. + + * The run-command interface was easy to abuse and make a pipe for us + to read from the process, wait for the process to finish and then + attempt to read its output, which is a pattern that lead to a + deadlock. Fix such uses by introducing a helper to do this + correctly (i.e. we need to read first and then wait the process to + finish) and also add code to prevent such abuse in the run-command + helper. + Also contains various documentation updates and code clean-ups. @@ -307,7 +392,64 @@ notes for details). * A corrupt input to "git diff -M" used to cause it to segfault. (merge 4d6be03 jk/diffcore-rename-duplicate later to maint). - * Code cleanups and documentaiton updates. + * Certain builds of GPG triggered false breakages in a test. + (merge 3f88c1b mg/verify-commit later to maint). + + * "git imap-send" learned to optionally talk with an IMAP server via + libcURL; because there is no other option when Git is built with + NO_OPENSSL option, use that codepath by default under such + configuration. + (merge dcd01ea km/imap-send-libcurl-options later to maint). + + * "git log --decorate" did not reset colors correctly around the + branch names. + (merge 5ee8758 jc/decorate-leaky-separator-color later to maint). + + * The code that reads from the ctags file in the completion script + (in contrib/) did not spell ${param/pattern/string} substitution + correctly, which happened to work with bash but not with zsh. + (merge db8d750 js/completion-ctags-pattern-substitution-fix later to maint). + + * The transfer.hiderefs support did not quite work for smart-http + transport. + (merge 8ddf3ca jk/smart-http-hide-refs later to maint). + + * "git tag -h" used to show the "--column" and "--sort" options + that are about listing in a wrong section. + (merge dd059c6 jk/tag-h-column-is-a-listing-option later to maint). + + * "git prune" used to largely ignore broken refs when deciding which + objects are still being used, which could spread an existing small + damage and make it a larger one. + (merge ea56c4e jk/prune-with-corrupt-refs later to maint). + + * The split-index mode introduced at v2.3.0-rc0~41 was broken in the + codepath to protect us against a broken reimplementation of Git + that writes an invalid index with duplicated index entries, etc. + (merge 03f15a7 tg/fix-check-order-with-split-index later to maint). + + * "git fetch" that fetches a commit using the allow-tip-sha1-in-want + extension could have failed to fetch all the requested refs. + (merge 32d0462 jk/fetch-pack later to maint). + + * An failure early in the "git clone" that started creating the + working tree and repository could have resulted in some directories + and files left without getting cleaned up. + (merge 16eff6c jk/cleanup-failed-clone later to maint). + + * Recommend format-patch and send-email for those who want to submit + patches to this project. + (merge b25c469 jc/submitting-patches-mention-send-email later to maint). + + * Even though "git grep --quiet" is run merely to ask for the exit + status, we spawned the pager regardless. Stop doing that. + (merge c2048f0 ws/grep-quiet-no-pager later to maint). + + * The prompt script (in contrib/) did not show the untracked sign + when working in a subdirectory without any untracked files. + (merge 9bdc517 ct/prompt-untracked-fix later to maint). + + * Code cleanups and documentation updates. (merge 2ce63e9 rs/simple-cleanups later to maint). (merge 33baa69 rj/no-xopen-source-for-cygwin later to maint). (merge 817d03e jc/diff-test-updates later to maint). @@ -317,3 +459,8 @@ notes for details). (merge 53e53c7 sg/completion-remote later to maint). (merge 8fa7975 ak/git-done-help-cleanup later to maint). (merge 9a6f128 rs/deflate-init-cleanup later to maint). + (merge 6f75d45 rs/use-isxdigit later to maint). + (merge 376e4b3 jk/test-annoyances later to maint). + (merge 7032054 nd/doc-git-index-version later to maint). + (merge e869c5e tg/test-index-v4 later to maint). + (merge 599d223 jk/simplify-csum-file-sha1fd-check later to maint). |