Upgraded to the latest stable WP. It was as easy as copying new files over old ones.
Fixed Tagadam to work with this version of WP. Tagadam is the name of my still-not-ready-for-a-release tags plugin, it’s been primarily coded with my CVS checkout of February in mind, so no wonder it needed some fixing.
Ditched categories in feeds. I’ll only have tags from now on (they’re already using the <category> element anyway).
Added Google ads on archives, tags, single posts. I’m not sure of the format.