Since the announcement that Object Manager Enterprise would be added to our open source offerings we take the time and a lot of improvements were made: bugs were fixed, code were rewritten and we started to add tests (incipient, but at least we started).

Take a look in our issue tracking system and you'll see that a bunch of bugs were fixed (and some new were found/added) (for instance, we fixed some bugs that caused value types to not be saved in some scenarios).

If you are using OMN (Object Manager Enterprise .Net) , please,  report any issues you find. Also, we encourage you to vote in JIRA for the issues that are important to you, so we have more information about what's important to our users and this can help in deciding what to do next.

Last, but not least, we are aware about of other existing OMN issues and we are working hard (within our constrains) to make it better.

Anyway, Db4o is an open source project, so feel free to grab the source code, take a look and if you feel like wanting to contribute, feel free to send your opinion, ideas, comments, patches, etc. :)

Best

Adriano