The latest version of BuddyPress is 1.9.2, released on February 5, 2014.
If you’re interested in working on BuddyPress please check-out the most recent revision from our Subversion repository.
svn co https://buddypress.svn.wordpress.org/trunk/
We have a Trac environment for reporting bugs, browsing code, and other developer-centric fun.
Check out our development page for more information.