Upgrade from 2.0b2 to 2.0b4?

I’m interested in some of the memory leak fixes in b4, but I have a running b2 installation. I did not find upgrade instructions in the docs. What is the upgrade process? Backup /etc/nagios/conf, install b4, and copy back the conf directory?

Thanks - newbie.

btw - how can I change the ugly green color of the forum, is there a personal setting for that?
Edited ]

the upgrade is just like that.
Haven’t had much problems with it. Except i always forget to backup my modifications to the tactical overview… ghgh

Luca