Had to bite the bullet and upgrade due to an issue that no one could figure. Anyway, once the rebuilding is done, what do you recommend that I should check or do for critical settings ?

I have the suite minus nexus and download.

thanks

 

in my experience upgrading mine, basically after the rebuild. grab any plugins that fit your community. every community is different   but other than that just go around and check overall functionality and get to know the software. have fun

Gotta say that I'm pretty impressed on how smooth the upgrade process went. Since I had already converted the database last summer, I didn't have to chase errors and even the apps and pictures and smilies transferred without a hitch. Nothing missing in posts or weird characters showing up.