Fairly painless upgrade from 2.1.3 to 2.2.
I noticed the Visual Editor (tinyMCE) doesn't appear when I use Firefox 1.5.x on my Mac nor Firefox 22.214.171.124 on my windell. Oddly, it shows using IE 7. I'm sure it was there when I used 2.1.3. No big deal since I usually prefer to write in code or quick links.
When I deactivated all my plugins on 2.1.3, I noticed when I clicked on the Dashboard tab, I was still redirected to "..wordpress/wp-admin/index.php?page=index.php" (a nice blank page) rather than to "..wordpress/wp-admin/". I figured this "feature" was due to a plug in but I still had the same redirection on a mint 2.2 install with no plugins running. I am willing to bet it has something to do with my recent addition of the self-hosted wordpress stats plugin but my code debugging skills aren't strong enough to confirm it.