Kolab 16 on Debian - upgrade error

Hi,
	today I upgrade my installation of a kolab 16 on debian 8 using:

aptitude update
aptitude upgrade

The roundcube upgrade changed also the config file

/etc/roundcubemail/config.inc.php

After the update roudcube said it cannot contact the db any more.

I've replaced the config file with the old one and now roundcube is
working as before.

Is that a known problem or I did something wrong?

Thanks

-- 
Gelpi ing. Andrea
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It took the computing power of three C-64s to fly to the Moon.
It takes a 486 to run Windows 95. Something is wrong here.
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