Drools 4.0.1 was just released. Check our blog for the release notes:

http://blog.athico.com/2007/08/drools-401-released.html

    Happy Drooling,
      Drools Team

--
  Edson Tirelli
  Software Engineer - JBoss Rules Core Developer
  Office: +55 11 3529-6000
  Mobile: +55 11 9287-5646
  JBoss, a division of Red Hat @ www.jboss.com