The last release of lighttpd is now 3 month ago and several patches are waiting in the trac.lighttpd.net/trac/ for their release.
Next to several bug-fixes it contains a simplified CARP (Cache Array Routing Protocol) like load balancing for mod_proxy and a new mod_scgi for WSGI + python.
The first public pre-release has been upload and is meant for a wider testing than the svn-tree.
Please don’t put that on a production system yet even it contains mostly bugfixes.
www.lighttpd.net/download/lighttpd-1.3.14-20050612-1303.tar.gz