libgit2/pygit2 — pull request #251 by davidfischer (2013-06-14 15:08:38+00:00)
Title: Added note about pygit2/libgit2 versioning

I see that this is documented on the [wiki](https://github.com/libgit2/pygit2/wiki/Release-policy) but I think it's worth mentioning in the install docs as I ran into the issue.