We included several enhancements:
* Oracle entities limited to 30 chars
* Document categories representation
* Expose OKMProperty (and others) methods by webservices
* Fix hibernate support for PostgreSQL
* And a bunch of little bugs fixed
Detailed changes are described at OpenKM wiki. If you want to migrate a previous OpenKM installation, please read the Migration Guide. Read carefully the documentation wiki. Bugs and other issues should be reported at http://issues.openkm.com.