I decided on downgrading the system by one release. Eventually your registered-data (account) will be lost during the process and you'd have to re-register.
The reason is simply that I want to get rid of the forum right now and replace it with an integrated one. Not that phpbb3 is a bad forum but simply because it won't go as nicely as I expected with the site. E.g. profile changes that are being made on the forums don't reflect globally whilst profile changes made on the site under my account do!
I will announce the exact date a couple of days before I take this site down and replace it with the one I'm working on locally.

Sorry for the trouble.