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1 GIT v1.5.2 Release Notes (draft)
2 ========================
4 Updates since v1.5.1
5 --------------------
7 * Plumbing level subproject support.
9 You can include a subdirectory that has an independent git
10 repository in your index and tree objects as a
11 "subproject". This plumbing (i.e. "core") level subproject
12 support explicitly excludes recursive behaviour.
14 The "subproject" entries in the index and trees are
15 incompatible with older versions of git. Experimenting with
16 the plumbing level support is encouraged, but be warned that
17 unless everybody in your project updates to this release or
18 later, using this feature would make your project
19 inaccessible by people with older versions of git.
21 * Plumbing level gitattributes support.
23 The gitattributes mechanism allows you to add 'attributes' to
24 paths in your project, and affect the way certain git
25 operations work. Currently you can influence if a path is
26 considered a binary or text (the former would be treated by
27 'git diff' not to produce textual output; the latter can go
28 through the line endings conversion process in repositories
29 with core.autocrlf set), expand and unexpand '$ident$' keyword
30 with blob object name, specify a custom 3-way merge driver,
31 and specify a custom diff driver. You can also apply
32 arbitrary filter to contents on check-in/check-out codepath
33 but this feature is an extremely sharp-edged razor and needs
34 to be handled with caution (do not use it unless you
35 understand the earlier mailing list discussion on keyword
36 expansion).
38 * The packfile format now optionally suports 64-bit index.
40 This release supports the "version 2" format of the .idx
41 file. This is automatically enabled when a huge packfile
42 needs more than 32-bit to express offsets of objects in the
43 pack.
45 * Comes with an updated git-gui 0.7.0
47 * Updated gitweb:
49 - can show combined diff for merges;
50 - uses font size of user's preference, not hardcoded in pixels;
52 * New commands and options.
54 - "git bisect start" can optionally take a single bad commit and
55 zero or more good commits on the command line.
57 - "git shortlog" can optionally be told to wrap its output.
59 - "subtree" merge strategy allows another project to be merged in as
60 your subdirectory.
62 - "git format-patch" learned a new --subject-prefix=<string>
63 option, to override the built-in "[PATCH]".
65 - "git add -u" is a quick way to do the first stage of "git
66 commit -a" (i.e. update the index to match the working
67 tree); it obviously does not make a commit.
69 - "git clean" honors a new configuration, "clean.requireforce". When
70 set to true, this makes "git clean" a no-op, preventing you
71 from losing files by typing "git clean" when you meant to
72 say "make clean". You can still say "git clean -f" to
73 override this.
75 - "git log" family of commands learned --date={local,relative,default}
76 option. --date=relative is synonym to the --relative-date.
77 --date=local gives the timestamp in local timezone.
79 * Updated behavior of existing commands.
81 - When $GIT_COMMITTER_EMAIL or $GIT_AUTHOR_EMAIL is not set
82 but $EMAIL is set, the latter is used as a substitute.
84 - "git diff --stat" shows size of preimage and postimage blobs
85 for binary contents. Earlier it only said "Bin".
87 - "git lost-found" shows stuff that are unreachable except
88 from reflogs.
90 - "git checkout branch^0" now detaches HEAD at the tip commit
91 on the named branch, instead of just switching to the
92 branch (use "git checkout branch" to switch to the branch,
93 as before).
95 - "git bisect next" can be used after giving only a bad commit
96 without giving a good one (this starts bisection half-way to
97 the root commit). We used to refuse to operate without a
98 good and a bad commit.
100 - "git push", when pushing into more than one repository, does
101 not stop at the first error.
103 - "git archive" does not insist you to give --format parameter
104 anymore; it defaults to "tar".
106 - "git cvsserver" can use backends other than sqlite.
108 - "gitview" (in contrib/ section) learned to better support
109 "git-annotate".
111 - "git diff $commit1:$path2 $commit2:$path2" can now report
112 mode changes between the two blobs.
114 - Local "git fetch" from a repository whose object store is
115 one of the alternates (e.g. fetching from the origin in a
116 repository created with "git clone -l -s") avoids
117 downloading objects unnecessarily.
119 - "git blame" uses .mailmap to canonicalize the author name
120 just like "git shortlog" does.
122 - "git pack-objects" pays attention to pack.depth
123 configuration variable.
125 - "git cherry-pick" and "git revert" does not use .msg file in
126 the working tree to prepare commit message; instead it uses
127 $GIT_DIR/MERGE_MSG as other commands do.
129 * Builds
131 - git-p4import has never been installed; now there is an
132 installation option to do so.
134 - gitk and git-gui can be configured out.
136 - Generated documentation pages automatically get version
137 information from GIT_VERSION.
139 - Parallel build with "make -j" descending into subdirectory
140 was fixed.
142 * Performance Tweaks
144 - Optimized "git-rev-list --bisect" (hence "git-bisect").
146 - Optimized "git-add $path" in a large directory, most of
147 whose contents are ignored.
149 - Optimized "git-diff-tree" for reduced memory footprint.
151 - The recursive merge strategy updated a worktree file that
152 was changed identically in two branches, when one of them
153 renamed it. We do not do that when there is no rename, so
154 match that behaviour. This avoids excessive rebuilds.
156 - The default pack depth has been increased to 50, as the
157 recent addition of delta_base_cache makes deeper delta chains
158 much less expensive to access. Depending on the project, it was
159 reported that this reduces the resulting pack file by 10%
160 or so.
163 Fixes since v1.5.1
164 ------------------
166 All of the fixes in v1.5.1 maintenance series are included in
167 this release, unless otherwise noted.
169 * Bugfixes
171 - Switching branches with "git checkout" refused to work when
172 a path changes from a file to a directory between the
173 current branch and the new branch, in order not to lose
174 possible local changes in the directory that is being turned
175 into a file with the switch. We now allow such a branch
176 switch after making sure that there is no locally modified
177 file nor un-ignored file in the directory. This has not
178 been backported to 1.5.1.x series, as it is rather an
179 intrusive change.
181 - Merging branches that have a file in one and a directory in
182 another at the same path used to get quite confused. We
183 handle such a case a bit more carefully, even though that is
184 still left as a conflict for the user to sort out. This
185 will not be backported to 1.5.1.x series, as it is rather an
186 intrusive change.
188 - git-fetch had trouble with a remote with insanely large number
189 of refs.
191 - "git clean -d -X" now does not remove non-excluded directories.
193 * Documentation updates
195 * Performance Tweaks
197 --
198 exec >/var/tmp/1
199 O=v1.5.2-rc3
200 echo O=`git describe refs/heads/master`
201 git shortlog --no-merges $O..refs/heads/master ^refs/heads/maint