Upgrade 3.4 to 14 on Ubuntu

[Timotheus Pokorra]

Hello Henning,

> Is the update from 3.4 worth it? Where can I read about the features, that
> are new in Version 16 (unstable)?
For new features, see this post:
https://kolab.org/group-blog/2016/01/31/kolab-16-at-fosdem16/

In general, since 3.4 is not much maintained by anyone, it will be
good to upgrade to the next version as soon as you have verified it to
be stable for your purposes.

Timotheus