[jbpm-dev] Re: jbpm-3.3.0 backward compatibility

that is not safe to say in general. this is exactly why we were working on rolling back the hibernate string/text changes, which eventually didn't make it in the release. it depends on how the text hibernate mappings translate to the user's specific database. for some databases this will work transparant. for others, they might need to change the type of some of their database columns. this is why i added a reference at the last minute yesterday on how to revert those hibernate mapping changes. also one column needs to be added to a table. the lesson we learned is that hibernate mapping updates should be monitored much more closely. e.g. with a continuous integration test. this is a topic that we should talk about next meeting: we could introduce a job that runs the test suite by starting from the previous database schema and running the schema update script. then if someone introduces a db schema change, first, there is a signal if this happens unexpectedly, secondly the developer is forced to also update the DB migration scripts which means that we'll have db migration as part of the development. regards, tom. Thomas Diesler wrote: