Downgrading Plesk
Wipe. Reload. Restore.
That’s about it, AFAIK. Downgrading Plesk is a real doozie, so do your research before upgrading away compatibility. On that note, Tomcat 4 != compatible with anything past 8.0.0. I’m just saying. =P
Best bet: do your upgrades on a test box first, like your supposed to. Even better, do it on a virtual machine and take a snapshot beforehand. And as far as upgrading Plesk goes, not doing it one step at a time also tends to break it.
