and things will be broken...
I've delayed this as long as possible but we're forced to upgrade to a newer version of Vbulletin for security reasons. Because of all the custom mods that have been done over the last 14 years there will be things that may not work afterwards. We'll get them fixed asap, already spent 8+months doing background work to minimize this as much as possible.
Site should only be offline a couple hours, then the fixes will start. Just an FYI.