The Git core team has announced maintenance releases for all current versions of Git (v1.8.5.6, v1.9.5, v2.0.5, v2.1.4, and v2.2.1).
I have one Windows machine and went to update http://git-scm.com/download/win (preview Version 1.9.4)
It was released 3 months ago, on 2014-09-29.
https://msysgit.github.io (Version 1.9.5 preview BUT no documentation that this is for a security fix)
Doesn't seem like I can update my git client