FC2 to FC3 or FC4 upgrade

[Mark Knecht]

Hi,
   I wonder what experience people here have with upgrading an FC2 box
to newer FCx revisions. Is this something that can, in general, be
safely accomplished using the FCx install CDs? What tricks do I need
to know about to do an upgrade? Frankly I've never done one but rather
have always done complete installs from scratch. I'm tired of doing
that and just want a clean, simple, plug in the disk and one hour
later it works like it always has but it's a new release.

Thanks,
Mark