Documentation / RelNotes-1.7.0.txton commit Merge branch 'maint' (618d18b)
   1Git v1.7.0 Release Notes
   2========================
   3
   4Notes on behaviour change
   5-------------------------
   6
   7 * "git push" into a branch that is currently checked out (i.e. pointed by
   8   HEAD in a repository that is not bare) is refused by default.
   9
  10   Similarly, "git push $there :$killed" to delete the branch $killed
  11   in a remote repository $there, when $killed branch is the current
  12   branch pointed at by its HEAD, will be refused by default.
  13
  14   Setting the configuration variables receive.denyCurrentBranch and
  15   receive.denyDeleteCurrent to 'ignore' in the receiving repository
  16   can be used to override these safety features.
  17
  18 * "git send-email" does not make deep threads by default when sending a
  19   patch series with more than two messages.  All messages will be sent
  20   as a reply to the first message, i.e. cover letter.
  21
  22   It has been possible to configure send-email to send "shallow thread"
  23   by setting sendemail.chainreplyto configuration variable to false.  The
  24   only thing this release does is to change the default when you haven't
  25   configured that variable.
  26
  27 * "git status" is not "git commit --dry-run" anymore.  This change does
  28   not affect you if you run the command without argument.
  29
  30 * "git diff" traditionally treated various "ignore whitespace" options
  31   only as a way to filter the patch output.  "git diff --exit-code -b"
  32   exited with non-zero status even if all changes were about changing the
  33   ammount of whitespace and nothing else.  and "git diff -b" showed the
  34   "diff --git" header line for such a change without patch text.
  35
  36   In this release, the "ignore whitespaces" options affect the semantics
  37   of the diff operation.  A change that does not affect anything but
  38   whitespaces is reported with zero exit status when run with
  39   --exit-code, and there is no "diff --git" header for such a change.
  40
  41 * External diff and textconv helpers are now executed using the shell.
  42   This makes them consistent with other programs executed by git, and
  43   allows you to pass command-line parameters to the helpers. Any helper
  44   paths containing spaces or other metacharacters now need to be
  45   shell-quoted.  The affected helpers are GIT_EXTERNAL_DIFF in the
  46   environment, and diff.*.command and diff.*.textconv in the config
  47   file.
  48
  49 * The --max-pack-size argument to 'git repack', 'git pack-objects', and
  50   'git fast-import' was assuming the provided size to be expressed in MiB,
  51   unlike the corresponding config variable and other similar options accepting
  52   a size value.  It is now expecting a size expressed in bytes, with a possible
  53   unit suffix of 'k', 'm', or 'g'.
  54
  55Updates since v1.6.6
  56--------------------
  57
  58(subsystems)
  59
  60 * "git fast-import" updates; adds "option" and "feature" to detect the
  61   mismatch between fast-import and the frontends that produce the input
  62   stream.
  63
  64 * "git svn" support of subversion "merge tickets" and miscellaneous fixes.
  65
  66 * "gitk" and "git gui" translation updates.
  67
  68 * "gitweb" updates (code clean-up, load checking etc.)
  69
  70(portability)
  71
  72 * Some more MSVC portability patches for msysgit port.
  73
  74 * Minimum Pthreads emulation for msysgit port.
  75
  76(performance)
  77
  78 * More performance improvement patches for msysgit port.
  79
  80(usability, bells and whistles)
  81
  82 * More commands learned "--quiet" and "--[no-]progress" options.
  83
  84 * Various commands given by the end user (e.g. diff.type.textconv,
  85   and GIT_EDITOR) can be specified with command line arguments.  E.g. it
  86   is now possible to say "[diff "utf8doc"] textconv = nkf -w".
  87
  88 * "sparse checkout" feature allows only part of the work tree to be
  89   checked out.
  90
  91 * HTTP transfer can use authentication scheme other than basic
  92   (i.e./e.g. digest).
  93
  94 * Switching from a version of superproject that used to have a submodule
  95   to another version of superproject that no longer has it did not remove
  96   the submodule directory when it should (namely, when you are not
  97   interested in the submodule at all and didn't clone/checkout).
  98
  99 * A new attribute conflict-marker-size can be used to change the size of
 100   the conflict markers from the default 7; this is useful when tracked
 101   contents (e.g. git-merge documentation) have strings that resemble the
 102   conflict markers.
 103
 104 * A new syntax "<branch>@{upstream}" can be used on the command line to
 105   substitute the name of the "upstream" of the branch.  Missing branch
 106   defaults to the current branch, so "git fetch && git merge @{upstream}"
 107   will be equivalent to "git pull".
 108
 109 * "git branch --set-upstream" can be used to update the (surprise!) upstream
 110   i.e. where the branch is supposed to pull and merge from (or rebase onto).
 111
 112 * "git checkout A...B" is a way to detach HEAD at the merge base between
 113   A and B.
 114
 115 * "git checkout -m path" to reset the work tree file back into the
 116   conflicted state works even when you already ran "git add path" and
 117   resolved the conflicts.
 118
 119 * "git commit --date='<date>'" can be used to override the author date
 120   just like "git commit --author='<name> <email>'" can be used to
 121   override the author identity.
 122
 123 * "git commit --no-status" can be used to omit the listing of the index
 124   and the work tree status in the editor used to prepare the log message.
 125
 126 * "git commit" warns a bit more aggressively until you configure user.email,
 127   whose default value almost always is not (and fundamentally cannot be)
 128   what you want.
 129
 130 * "git difftool" has been extended to make it easier to integrate it
 131   with gitk.
 132
 133 * "git fetch --all" can now be used in place of "git remote update".
 134
 135 * "git grep" does not rely on external grep anymore.  It can use more than
 136   one threads to accelerate the operation.
 137
 138 * "git grep" learned "--quiet" option.
 139
 140 * "git log" and friends learned "--glob=heads/*" syntax that is a more
 141   flexible way to complement "--branches/--tags/--remotes".
 142
 143 * "git merge" learned to pass options specific to strategy-backends.  E.g.
 144
 145    - "git merge -Xsubtree=path/to/directory" can be used to tell the subtree
 146      strategy how much to shift the trees explicitly.
 147
 148    - "git merge -Xtheirs" can be used to auto-merge as much as possible,
 149      while discarding your own changes and taking merged version in
 150      conflicted regions.
 151
 152 * "git push" learned "git push origin --delete branch", a syntactic sugar
 153   for "git push origin :branch".
 154
 155 * "git push" learned "git push --set-upstream origin forker:forkee" that
 156   lets you configure your "forker" branch to later pull from "forkee"
 157   branch at "origin".
 158
 159 * "git rebase --onto A...B" means the history is replayed on top of the
 160   merge base between A and B.
 161
 162 * "git rebase -i" learned new action "fixup", that squashes the change
 163   but does not affect existing log message.
 164
 165 * "git rebase -i" also learned --autosquash option, that is useful
 166   together with the new "fixup" action.
 167
 168 * "git remote" learned set-url subcommand, to update (surprise!) url
 169   for an existing remote nickname.
 170
 171 * "git rerere" learned "forget path" subcommand.  Together with "git
 172   checkout -m path" it will be useful when you recorded a wrong
 173   resolution.
 174
 175 * Use of "git reset --merge" has become easier when resetting away a
 176   conflicted mess left in the work tree.
 177
 178 * "git rerere" had rerere.autoupdate configuration but there was no way
 179   to countermand it from the command line; --no-rerere-autoupdate option
 180   given to "merge", "revert", etc. fixes this.
 181
 182 * "git status" learned "-s(hort)" output format.
 183
 184(developers)
 185
 186 * The infrastructure to build foreign SCM interface has been updated.
 187
 188 * Many more commands are now built-in.
 189
 190 * THREADED_DELTA_SEARCH is no more.  If you build with threads, delta
 191   compression will always take advantage of it.
 192
 193Fixes since v1.6.6
 194------------------
 195
 196All of the fixes in v1.6.6.X maintenance series are included in this
 197release, unless otherwise noted.
 198
 199 * "git branch -d branch" used to refuse deleting the branch even when
 200   the branch is fully merged to its upstream branch if it is not merged
 201   to the current branch.  It now deletes it in such a case.
 202
 203 * When using "git status" or asking "git diff" to compare the work tree
 204   with something, they used to consider that a checked-out submodule with
 205   uncommitted changes is not modified; this could cause people to forget
 206   committing these changes in the submodule before committing in the
 207   superproject. They now consider such a change as a modification and
 208   "git diff" will append a "-dirty" to the work tree side when generating
 209   patch output or when used with the --submodule option.