git-commit-vandalism/Documentation/RelNotes/2.0.0.txt

Git v2.0 Release Notes
======================

Backward compatibility notes
----------------------------

When "git push [$there]" does not say what to push, we have used the
traditional "matching" semantics so far (all your branches were sent
to the remote as long as there already are branches of the same name
over there).  In Git 2.0, the default is now the "simple" semantics,
which pushes:

 - only the current branch to the branch with the same name, and only
   when the current branch is set to integrate with that remote
   branch, if you are pushing to the same remote as you fetch from; or

 - only the current branch to the branch with the same name, if you
   are pushing to a remote that is not where you usually fetch from.

You can use the configuration variable "push.default" to change
this.  If you are an old-timer who wants to keep using the
"matching" semantics, you can set the variable to "matching", for
example.  Read the documentation for other possibilities.

When "git add -u" and "git add -A" are run inside a subdirectory
without specifying which paths to add on the command line, they
operate on the entire tree for consistency with "git commit -a" and
other commands (these commands used to operate only on the current
subdirectory).  Say "git add -u ." or "git add -A ." if you want to
limit the operation to the current directory.

"git add <path>" is the same as "git add -A <path>" now, so that
"git add dir/" will notice paths you removed from the directory and
record the removal.  In older versions of Git, "git add <path>" used
to ignore removals.  You can say "git add --ignore-removal <path>" to
add only added or modified paths in <path>, if you really want to.

The "-q" option to "git diff-files", which does *NOT* mean "quiet",
has been removed (it told Git to ignore deletion, which you can do
with "git diff-files --diff-filter=d").


Updates since v1.9 series
-------------------------

Foreign interfaces, subsystems and ports.


UI, Workflows & Features

 * The "simple" mode is the default for "git push".

 * "git add -u" and "git add -A", when run without any pathspec, is a
   tree-wide operation even when run inside a subdirectory of a
   working tree.

 * "git add <path> is the same as "git add -A <path>" now.

 * "core.statinfo" configuration variable, which is a
   never-advertised synonym to "core.checkstat", has been removed.

 * The "-q" option to "git diff-files", which does *NOT* mean
   "quiet", has been removed (it told Git to ignore deletion, which
   you can do with "git diff-files --diff-filter=d").

 * Many commands that creates commits, e.g. "pull", "rebase",
   learned to take the --gpg-sign option on the command line.

 * "git commit" can be told to always GPG sign the resulting commit
   by setting "commit.gpgsign" configuration variable to true (the
   command line option --no-gpg-sign should override it).

 * "git pull" can be told to only accept fast-forward by setting the
   new "pull.ff" configuration.

 * "git reset" learned "-N" option, which does not reset the index
   fully for paths the index knows about but the tree-ish the command
   resets to does not (these paths are kept as intend-to-add entries).

 * Newly cloned submodule repositories by "git submodule update",
   when the "checkout" update mode is used, will be on a local
   branch instead of on a detached HEAD, just like submodules added
   with "git submodule add".


Performance, Internal Implementation, etc.

 * The bitmap-index feature from JGit has been ported, which should
   significantly improve performance when serving objects form a
   repository that uses it.

 * The way "git log --cc" shows a combined diff against multiple
   parents have been optimized.

 * The prefixcmp() and suffixcmp() functions are gone.  Use
   starts_with() and ends_with(), and also consider if skip_prefix()
   suits your needs better when using the former.


Also contains various documentation updates and code clean-ups.


Fixes since v1.9 series
-----------------------

Unless otherwise noted, all the fixes since v1.9 in the maintenance
track are contained in this release (see the maintenance releases'
notes for details).

 * "merge-recursive" was broken in 1.7.7 era and stopped working in
   an empty (temporary) working tree, when there are renames
   involved.  This has been corrected.
   (merge 6e2068a bk/refresh-missing-ok-in-merge-recursive later to maint.)

 * "git rev-parse" was loose in rejecting command line arguments
   that do not make sense, e.g. "--default" without the required
   value for that option.
   (merge a43219f ds/rev-parse-required-args later to maint.)

 * include.path variable (or any variable that expects a path that
   can use ~username expansion) in the configuration file is not a
   boolean, but the code failed to check it.
   (merge 67beb60 jk/config-path-include-fix later to maint.)

 * Commands that take pathspecs on the command line misbehaved when
   the pathspec is given as an absolute pathname (which is a
   practice not particularly encouraged) that points at a symbolic
   link in the working tree.
   (merge later 655ee9e mw/symlinks to maint.)

 * "git diff --quiet -- pathspec1 pathspec2" sometimes did not return
   correct status value.
   (merge f34b205 nd/diff-quiet-stat-dirty later to maint.)

 * Attempting to deepen a shallow repository by fetching over smart
   HTTP transport failed in the protocol exchange, when no-done
   extension was used.  The fetching side waited for the list of
   shallow boundary commits after the sending end stopped talking to
   it.
   (merge 0232852 nd/http-fetch-shallow-fix later to maint.)

 * Allow "git cmd path/", when the 'path' is where a submodule is
   bound to the top-level working tree, to match 'path', despite the
   extra and unnecessary trailing slash (such a slash is often
   given by command line completion).
   (merge 2e70c01 nd/submodule-pathspec-ending-with-slash later to maint.)