sprior,
We don’t have an automatic upgrade option yet. If you chose to use MyEclipse libraries, upgrading is easy, if you copied all the JARs into your project then I’m afraid you’ll have to copy the Hibernate 3.1 JARs manually into your project.
If you used MyEclipse libararies:
1) Close all files in the project you want to upgrade
2) Turn Auto build off (optional)
3) Right click the Hibernate 3.0 Core Libraries user library and choose “Build Path > Remove from build path” (do the same for the advanced libarary if you have it).
4) Go to Project Properties > Java Build Path and on the Libraries tab, click Add Library. Select MyEclipse Libraries and then check the Hibernate 3.1 libraries you desire.
5) Open your .myhibernatedata file and change the version property to 3.1 from 3.0
6) Turn Auto build back on if necessary
Let us know if you need further assistance, we plan to make upgrades (and possibly downgrades) more painless in the future.
Best,
Brian.