I just upgraded my blog software from 2.1 to 2.2.1. I’ve been wanting to do that for a while, but I wanted some free time. Once again, I ignored the bit in the instructions where it says to deactivate all the plugins first and then reactivate them afterwards, and once again the upgrade worked perfectly. Ok, I had to re-activate the options to get the category and archive widgets as dropdowns, but that was simple.