What I now know about Wordpress 2.1 ... is that I can't run it because my host is running MySQL prior to 4.0. Tried doing the upgrade and it sort of worked ... but not really. So I reverted back to 2.0.6 and found 2.0.7 which is what we're running now. Really have to get credit to the folks at WordPress - they have made a solid piece of software that's easy enough to work with that many people have made plug-ins ... but it handles stuff like 2.0.6->2.1->2.0.7 without messing up. Very comfortable feeling, relying on it.

10 Things You should Know About WordPress 2.1 is a good summary of key changes.

Merging of Links and Categories

[...] While those philosophies can be discussed in other posts, the important thing to recognize is that the Categories table is now prepopulated with a Blogroll category and all links are assigned, by default, to the blogroll category.

That's actually something I'd like to have. Trying to make two sets of categories is a pain. Much nicer to link to Wordpress.org in the blogging category, etc.

So I just need to figure out how to back up my blog, then make WordPress work on a different port. Yeah, easy-peasy. But I will get to it so I can see what the other features are like.