Bullet 2.79 is out. It is mainly a bugfix release, but there are a few new features. In particular there is a new convex decomposition library, HACD, integrated. Also we now support the premake build system, next to cmake and autotools. Premake can autogenerated Visual Studio project files that can be distributed, unlike cmake.
See http://bulletphysics.org/Bullet/phpBB3/viewtopic.php?f=18&t=7445 for more information.
We uploaded the slides from our SIGGRAPH course “Destruction and Dynamicsfor Film and Game Production”. You can find the slides at http://bulletphysics.org/siggraph2011