libgit2 今天发布两个维护版本，分别是 0.22.1 和 0.21.5。这两个版本的改进记录包括：
0.22.1：
bd0e881 checkout: introduce git_checkout_perfdata
1ca7fa9 git_path_join_unrooted: return base len
9f1c873 checkout: don't recreate previous directory
99367df checkout tests: nasty symlinks
b295294 checkout: drop newline in error message
8d65523 checkout: remove files before writing new ones
f9df7b6 checkout tests: emulate p_realpath poorly on Win32
1ce9ea3 checkout tests: cleanup realpath impl on Win32
0.21.5：
af769f4 checkout: introduce git_checkout_perfdata
fc478d2 git_path_join_unrooted: return base len
629a579 checkout: don't recreate previous directory
dd3c53f checkout tests: nasty symlinks
186177a checkout: drop newline in error message
7268a5a checkout: remove files before writing new ones
e517b62 checkout tests: emulate p_realpath poorly on Win32
9a8753d checkout tests: cleanup realpath impl on Win32
8433078 Introduce test for checkout case-changing rename
d853fb9 Always checkout with case sensitive iterator
这两个版本都修复了一些关键的问题，建议升级。
软件详情：https://github.com/libgit2/libgit2/
下载地址：https://github.com/libgit2/libgit2/releases
来自:开源中国社区
