JBoss AS 6.0.0.Final has just been released. The release notes are here and the download is available from the JBoss AS download page here.
I'll blog more about this in the days to come. For now, to summarize what's new in 6.0.0 Final - there have been numerous bug fixes for issues reported by the community. Furthermore from a EJB3.1 point of view, we now have EJB3.1 Embedded support and a far better support for EJB3.1 @Asynchronous functionality.
As usual, give it a try and feel free to ask any questions or report any issues, in our user forums:
JBoss AS user forum: http://community.jboss.org/en/jbossas?view=discussions
EJB3 user forum: http://community.jboss.org/en/ejb3?view=discussions