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1 Git v2.1 Release Notes
2 ======================
4 Backward compatibility notes
5 ----------------------------
7 * The default value we give to the environment variable LESS has been
8 changed from "FRSX" to "FRX", losing "S" (chop long lines instead
9 of wrapping). Existing users who prefer not to see line-wrapped
10 output may want to set
12 $ git config core.pager "less -S"
14 to restore the traditional behaviour. It is expected that people
15 find output from the most subcommands easier to read with the new
16 default, except for "blame" which tends to produce really long
17 lines. To override the new default only for "git blame", you can
18 do this:
20 $ git config pager.blame "less -S"
22 * A few disused directories in contrib/ have been retired.
25 Updates since v2.0
26 ------------------
28 UI, Workflows & Features
30 * Since the very beginning of Git, we gave the LESS environment a
31 default value "FRSX" when we spawn "less" as the pager. "S" (chop
32 long lines instead of wrapping) has been removed from this default
33 set of options, because it is more or less a personal taste thing,
34 as opposed to others that have good justifications (i.e. "R" is
35 very much justified because many kinds of output we produce are
36 colored and "FX" is justified because output we produce is often
37 shorter than a page).
39 * The logic and data used to compute the display width needed for
40 UTF-8 strings have been updated to match Unicode 6.3 better.
42 * "git commit --date=<date>" option learned to read from more
43 timestamp formats, including "--date=now".
45 * The `core.commentChar` configuration variable is used to specify a
46 custom comment character other than the default "#" to be used in
47 the commit log editor. This can be set to `auto` to attempt to
48 choose a different character that does not conflict with what
49 already starts a line in the message being edited for cases like
50 "git commit --amend".
52 * "git grep" learned grep.fullname configuration variable to force
53 "--full-name" to be default. This may cause regressions on
54 scripted users that do not expect this new behaviour.
56 * "git imap-send" learned to ask the credential helper for auth
57 material.
59 * "git merge" without argument, even when there is an upstream
60 defined for the current branch, refused to run until
61 merge.defaultToUpstream is set to true. Flip the default of that
62 configuration variable to true.
64 * "git mergetool" learned to drive the vimdiff3 backend.
66 * mergetool.prompt used to default to 'true', always asking "do you
67 really want to run the tool on this path?". Among the two
68 purposes this prompt serves, ignore the use case to confirm that
69 the user wants to view particular path with the named tool, and
70 redefine the meaning of the prompt only to confirm the choice of
71 the tool made by the autodetection (for those who configured the
72 tool explicitly, the prompt shown for the latter purpose is
73 simply annoying).
75 Strictly speaking, this is a backward incompatible change and the
76 users need to explicitly set the variable to 'true' if they want
77 to resurrect the now-ignored use case.
79 * "git svn" learned to cope with malformed timestamps with only one
80 digit in the hour part, e.g. 2014-01-07T5:01:02.048176Z, emitted
81 by some broken subversion server implementations.
83 * "git tag" when editing the tag message shows the name of the tag
84 being edited as a comment in the editor.
87 Performance, Internal Implementation, etc.
89 * Build procedure for 'subtree' (in contrib/) has been cleaned up.
91 * The `core.deltabasecachelimit` used to default to 16 MiB , but this
92 proved to be too small, and has been bumped to 96 MiB.
94 * "git blame" has been optimized greatly by reorganising the data
95 structure that is used to keep track of the work to be done.
97 * "git diff" that compares 3-or-more trees (e.g. parents and the
98 result of a merge) have been optimized.
100 * The API to update/delete references are being converted to handle
101 updates to multiple references in a transactional way. As an
102 example, "update-ref --stdin [-z]" has been updated to use this
103 API.
106 Also contains various documentation updates and code clean-ups.
109 Fixes since v2.0
110 ----------------
112 Unless otherwise noted, all the fixes since v2.0 in the maintenance
113 track are contained in this release (see the maintenance releases'
114 notes for details).
116 * We used to unconditionally disable the pager in the pager process
117 we spawn to feed out output, but that prevented people who want to
118 run "less" within "less" from doing so.
119 (merge c0459ca je/pager-do-not-recurse later to maint).
121 * Tools that read diagnostic output in our standard error stream do
122 not want to see terminal control sequence (e.g. erase-to-eol).
123 Detect them by checking if the standard error stream is connected
124 to a tty.
125 (merge 38de156 mn/sideband-no-ansi later to maint).
127 * Mishandling of patterns in .gitignore that has trailing SPs quoted
128 with backslashes (e.g. ones that end with "\ ") have been
129 corrected.
130 (merge e61a6c1 pb/trim-trailing-spaces later to maint).
132 * "--ignore-space-change" option of "git apply" ignored the spaces
133 at the beginning of line too aggressively, which is inconsistent
134 with the option of the same name "diff" and "git diff" have.
135 (merge 14d3bb4 jc/apply-ignore-whitespace later to maint).
137 * "git blame" miscounted number of columns needed to show localized
138 timestamps, resulting in jaggy left-side-edge of the source code
139 lines in its output.
140 (merge dd75553 jx/blame-align-relative-time later to maint).
142 * "git blame" assigned the blame to the copy in the working-tree if
143 the repository is set to core.autocrlf=input and the file used CRLF
144 line endings.
145 (merge 4d4813a bc/blame-crlf-test later to maint).
147 * "git commit --allow-empty-messag -C $commit" did not work when the
148 commit did not have any log message.
149 (merge 076cbd6 jk/commit-C-pick-empty later to maint).
151 * "git grep -O" to show the lines that hit in the pager did not work
152 well with case insensitive search. We now spawn "less" with its
153 "-I" option when it is used as the pager (which is the default).
154 (merge f7febbe sk/spawn-less-case-insensitively-from-grep-O-i later to maint).
156 * We used to disable threaded "git index-pack" on platforms without
157 thread-safe pread(); use a different workaround for such
158 platforms to allow threaded "git index-pack".
159 (merge 3953949 nd/index-pack-one-fd-per-thread later to maint).
161 * The error reporting from "git index-pack" has been improved to
162 distinguish missing objects from type errors.
163 (merge 77583e7 jk/index-pack-report-missing later to maint).
165 * "git mailinfo" used to read beyond the end of header string while
166 parsing an incoming e-mail message to extract the patch.
167 (merge b1a013d rs/mailinfo-header-cmp later to maint).
169 * On a case insensitive filesystem, merge-recursive incorrectly
170 deleted the file that is to be renamed to a name that is the same
171 except for case differences.
172 (merge baa37bf dt/merge-recursive-case-insensitive later to maint).
174 * "git rerere forget" did not work well when merge.conflictstyle
175 was set to a non-default value.
176 (merge de3d8bb fc/rerere-conflict-style later to maint).
178 * "git log --exclude=<glob> --all | git shortlog" worked as expected,
179 but "git shortlog --exclude=<glob> --all", which is supposed to be
180 identical to the above pipeline, was not accepted at the command
181 line argument parser level.
182 (merge eb07774 jc/shortlog-ref-exclude later to maint).
184 * "git show -s" (i.e. show log message only) used to incorrectly emit
185 an extra blank line after a merge commit.
186 (merge ad2f725 mk/show-s-no-extra-blank-line-for-merges later to maint).
188 * "git status", even though it is a read-only operation, tries to
189 update the index with refreshed lstat(2) info to optimize future
190 accesses to the working tree opportunistically, but this could
191 race with a "read-write" operation that modify the index while it
192 is running. Detect such a race and avoid overwriting the index.
193 (merge 426ddee ym/fix-opportunistic-index-update-race later to maint).
195 * "git update-index --cacheinfo" in 2.0 release crashed on a
196 malformed command line.
197 (merge c8e1ee4 jc/rev-parse-argh-dashed-multi-words later to maint).
199 * The mode to run tests with HTTP server tests disabled was broken.
200 (merge afa53fe na/no-http-test-in-the-middle later to maint).