Release Notes: A new configuration system (to make upgrading and administration easier) has been added. The Tag Service has been re-implemented (complete integration with the VCS backend). There is a new "Content Automation" feature. The repository (VCS) has been improved (with better Oracle support and optimizations). New packaging options and installers (a new Windows installer and Debian packages) have been added. There are new translations.
Release Notes: The CMIS connector is now included by default. OpenSocial support has been improved and upgraded (with OpenSocial 0.9 and OAuth support), with more compatibility testing. The default user interface is more configurable thanks to generalized usage of Layouts (and Nuxeo Studio). The storage engine (VCS) has been improved and optimized for higher data volumes.