"camunda" wrote : | | 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... I'm really interested on this topic. Is it documented somewhere? I've been searching for process instance version migration at jBPM 4, but I can't find anything... View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4265503#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...