Git v2.10.0 发布，分布式版本控制系统

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                　　Git v2.10.0 发布了，Git是一个开源的分布式版本控制系统，可以有效、高速的处理从很小到非常大的项目版本管理。Git 是 Linus Torvalds 为了帮助管理 Linux 内核开发而开发的一个开放源码的版本控制软件。
　　本次发布，对界面和工作流做了一些改进更新，以及对其性能增强。具体改进如下：
　　* "git pull --rebase --verify-signature" learned to warn the user
　　that "--verify-signature" is a no-op when rebasing.
　　
　　* An upstream project can make a recommendation to shallowly clone
　　some submodules in the .gitmodules file it ships.
　　
　　* "git worktree add" learned that '-' can be used as a short-hand for
　　"@{-1}", the previous branch.
　　
　　* Update the funcname definition to support css files.
　　
　　* The completion script (in contrib/) learned to complete "git
　　status" options.
　　
　　* Messages that are generated by auto gc during "git push" on the
　　receiving end are now passed back to the sending end in such a way
　　that they are shown with "remote: " prefix to avoid confusing the
　　users.
　　
　　* "git add -i/-p" learned to honor diff.compactionHeuristic
　　experimental knob, so that the user can work on the same hunk split
　　as "git diff" output.
　　
　　* "upload-pack" allows a custom "git pack-objects" replacement when
　　responding to "fetch/clone" via the uploadpack.packObjectsHook.
　　(merge b738396 jk/upload-pack-hook later to maint).
　　
　　* Teach format-patch and mailsplit (hence "am") how a line that
　　happens to begin with "From " in the e-mail message is quoted with
　　">", so that these lines can be restored to their original shape.
　　(merge d9925d1 ew/mboxrd-format-am later to maint).
　　
　　* "git repack" learned the "--keep-unreachable" option, which sends
　　loose unreachable objects to a pack instead of leaving them loose.
　　This helps heuristics based on the number of loose objects
　　(e.g. "gc --auto").
　　(merge e26a8c4 jk/repack-keep-unreachable later to maint).
　　

　　* "log --graph --format=" learned that "%>|(N)" specifies the>
　　>　　draw text that is to the right of the ancestry-graph section.  It

　　also now accepts negative N that means the column limit is>　　to the right border.
　　
　　* A careless invocation of "git send-email directory/" after editing
　　0001-change.patch with an editor often ends up sending both
　　0001-change.patch and its backup file, 0001-change.patch~, causing
　　embarrassment and a minor confusion.  Detect such an input and
　　offer to skip the backup files when sending the patches out.
　　(merge 531220b jc/send-email-skip-backup later to maint).
　　
　　* "git submodule update" that drives many "git clone" could
　　eventually hit flaky servers/network conditions on one of the
　　submodules; the command learned to retry the attempt.
　　
　　* The output coloring scheme learned two new attributes, italic and
　　strike, in addition to existing bold, reverse, etc.
　　
　　* "git log" learns log.showSignature configuration variable, and a
　　command line option "--no-show-signature" to countermand it.
　　(merge fce04c3 mj/log-show-signature-conf later to maint).
　　
　　* More markings of messages for i18n, with updates to various tests
　　to pass GETTEXT_POISON tests.
　　
　　* "git archive" learned to handle files that are larger than 8GB and
　　commits far in the future than expressible by the traditional US-TAR
　　format.
　　(merge 560b0e8 jk/big-and-future-archive-tar later to maint).
　　
　　
　　* A new configuration variable core.sshCommand has been added to
　　specify what value for GIT_SSH_COMMAND to use per repository.
　　
　　* "git worktree prune" protected worktrees that are marked as
　　"locked" by creating a file in a known location.  "git worktree"
　　command learned a dedicated command pair to create and remove such
　　a file, so that the users do not have to do this with editor.
　　
　　* A handful of "git svn" updates.
　　
　　* "git push" learned to accept and pass extra options to the
　　receiving end so that hooks can read and react to them.
　　
　　* "git status" learned to suggest "merge --abort" during a conflicted
　　merge, just like it already suggests "rebase --abort" during a
　　conflicted rebase.
　　
　　* "git jump" script (in contrib/) has been updated a bit.
　　(merge a91e692 jk/git-jump later to maint).
　　
　　* "git push" and "git clone" learned to give better progress meters
　　to the end user who is waiting on the terminal.
　　
　　* An entry "git log --decorate" for the tip of the current branch is
　　shown as "HEAD -> name" (where "name" is the name of the branch);
　　the arrow is now painted in the same color as "HEAD", not in the
　　color for commits.
　　
　　* "git format-patch" learned format.from configuration variable to
　　specify the default settings for its "--from" option.
　　
　　* "git am -3" calls "git merge-recursive" when it needs to fall back
　　to a three-way merge; this call has been turned into an internal
　　subroutine call instead of spawning a separate subprocess.
　　
　　* The command line completion scripts (in contrib/) now knows about
　　"git branch --delete/--move [--remote]".
　　(merge 2703c22 vs/completion-branch-fully-spelled-d-m-r later to maint).
　　
　　* "git rev-parse --git-path hooks/" learned to take
　　core.hooksPath configuration variable (introduced during 2.9 cycle)
　　into account.
　　(merge 9445b49 ab/hooks later to maint).
　　
　　* "git log --show-signature" and other commands that display the
　　verification status of PGP signature now shows the longer key-id,
　　as 32-bit key-id is so last century.
　　更多改进信息，可在这里查看：
　　http://lwn.net/Articles/699714/