Git是一个开源的分布式版本控制系统，用以有效、高速的处理从很小到非常大的项目版本管理。

Windows下的Git请看这里：http://www.oschina.net/p/msysgit

Git 是 Linux 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。

下载地址：http://kernel.org/pub/software/scm/git/git-1.7.2.2.tar.gz

Fixes since v1.7.2.1
--------------------

* Object transfer over smart http transport deadlocked the client when
the remote HTTP server returned a failure, instead of erroring it out.

* git-gui honors custom textconv filters when showing diff and blame;

* git diff --relative=subdir (without the necessary trailing /) did not
work well;

* "git diff-files -p --submodule" was recently broken;

* "git checkout -b n ':/token'" did not work;

* "git index-pack" (hence "git fetch/clone/pull/push") enabled the object
replacement machinery by mistake (it never should have);