@philippn no, the Summercamp grew to big for a real community event, so we decided to split and make it two.
The Best Open Source Email & Collaboration Software
No, the Zarafa 6.0x and 6.1x clients are forward compatible with the new 6.20 version. However, you will still need a license.
Zarafa, the leading European provider of open source groupware and collaboration software, is pleased to announce its eighth presence at the CeBIT. The world's largest trade fair, showcasing digital IT and telecommunications solutions, will take place in Hanover, Germany from March 5-9, 2013.