db4o version 6.3 was released as production and can be downloaded here:

http://developer.db4o.com/files/folders/db4o_63/default.aspx

db4o-6.3 was in development status for quite a while, but in this time a lot was achieved. The most notable features include:

Following the wishes of our users we supply db4o-6.3 with a fully reviewed and improved documentation.

We are also glad to announce some important bug fixes, including:

For the full list of concluded issues, please, check our change log.

Note, that production version 6.3 does not include Transparent Activation feature: this feature is still under development and can be downloaded with the continuous build.