Wolf-Dieter Fink [https://community.jboss.org/people/wdfink] created the discussion "Re: differences between the two jboss environments: 4.2.3.GA older than 7.1.1.final?" To view the discussion, visit: https://community.jboss.org/message/811410#811410 -------------------------------------------------------------- If you start with your development I would use the latest available version (i.e. EAP6.1.Beta which is a AS7.2 community version) Here you will have the full EE6 functionality. And it makes no sense to start with an old version. For older (EJB2) applications it might be an option to use AS4.2, 4.3 or 5.1. But you should keep in mind that you will not be able to have patches except you pay for a Red Hat subscription (as Pasquale mentioned). With such EJB2 application you might loose features as starting with AS7 (EE6) EJB2 is an old standard and will be EOL as with AS8 the EJB2 Entity support is removed as with EE7 this is pruned and +optional+. -------------------------------------------------------------- Reply to this message by going to Community [https://community.jboss.org/message/811410#811410] Start a new discussion in Beginner's Corner at Community [https://community.jboss.org/choose-container!input.jspa?contentType=1&...]