The sources repository of GNU Ferret is now using Bazaar instead of CVS.
Please follow the instructions at https://savannah.gnu.org/bzr/?group=ferret to get a copy of the repository.
The release of Ferret 0.7 is scheduled at 11-09-2006. Ferret 0.7 (actually the HEAD on CVS) is a total rewrite of Ferret 0.6.
Improvements include a new GUI and the use of the new diagram engine. There is also a domain tree that implement backend-independent abstract domains.