Please see my blog posting about this:http://jbosscache.blogspot.com/2008/07/jboss-cache-300-naga-first-alpha-now.htmlYou will also find these two articles related to the release interesting:http://jbosscache.blogspot.com/2008/07/mvcc-has-landed.htmlhttp://jbosscache.blogspot.com/2008/07/configuration-changes-in-jboss-cache-3.htmlCheersManik