Imagine that a process was deployed, and thousands of people started using it. Now imagine that some Java action or something has a code bug that results in a RuntimeException, so thousands of process instances that have been begun cannot move forward. The developers should be able to replace that buggy Java code with a fixed version, which would then allow those process instances to continue execution. If a new version is produced, then someone has to manually migrate all those thousands of process instances to the new process version before they can move forward. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4051944#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...