Release Notes: The most notable new features are CalDAV and CardDAV support. There is also integration with file storage in the Web client. It serves files through WebDAV.
Release Notes: The Kolab Groupware Server is now feature complete and ready for the first alpha. Integration into existing user directory setups, security, and scalability were improved. It is now possible to scale all functional components of Kolab separately. Also, there is a new unified command line utility for administrative tasks.