OK. Let's store non-essential JMS-related attributes as core headers. One observation, though: Tim wrote : | Ovidiu wrote : This is what migration utilities are for. We won't have to live forever with it, we will just have to go through the trouble of writing a migration tool. We need to do this while migrating from 1.0 to 1.2 anyway. | We don't need this for 1.2 since we have specifically said no compatibility until after 1.2. This is why it needs to be done now. | Well, we do. For people who want to migrate from 1.0 to 1.2 and have persistent messages in the database. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4012076#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...