Hi! I deliver a JB161-Training for JBoss next week and the customer had one question in advance which I want to forward to this forum, hopefully somebody has an answer to that? The question is, if EJB3 applications developed today with maybe JBoss 4.2 can be easily deployed on JBoss AS 5 (because the production release of the application will be next year)? Or should they be patient with some features? Or other recommendations? Since Java EE is a standard, there shouldn't be too big differences, I think. But some stuff isn't standardized. So I am not sure here and an answer would be great since ... Thanks a lot Bernd View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4134397#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...