yaacs-2.1 (bug fixing release)
NOTE: we strongly recommend you to wait till the 2.0 release because a lot of work has been done on this to make it a really stable release. In the meantime get a copy of the code from svn (see below). It's quite stable and usable.
Checkout your own copy from the svn repository
To get a fresh svn copy of yaacs just type the following command:
svn co https://svn.sourceforge.net/svnroot/yaacs/trunk <dest dir>