| As for the version issue, I haven't had a chance to look at JBPM 4 at all, but I'm assuming it can be adapted for it. In any case, it's exists in our code base as a standalone component, so it could always be release as a separate download for those using version 3. | Ideed, I think thats the best solution. jbpm 4 has changed in this area a lot, so changing the process instance version is very different, but much easier as well... View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4240583#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...