Omeka 0.9.1 is our first release since the initial public launch on February 20, 2008. It fixes 20+ bugs, and we highly recommend that all users upgrade their existing Omeka installations. The API hasn’t changed since the 0.9.0 release, so existing themes and plugins should continue to work after the upgrade.
If you have found a bug in Omeka, we would love to hear about it on the forums. We ask only that you first make sure that you have upgraded to the latest available release of Omeka. Also, bugs are fixed on a daily basis, and developers who would like to keep up with the latest changes are invited to check out a copy of the stable-0.9 branch via SVN.