WP 2.0
I've upgraded to WordPress 2.0. So far, it seems nice. I've played around with the previous release candidates, but now it is ready for Primetime. Or so I'm told. :) Also, check out the newly designed WordPress.org The design is a lot different from the old, but I think it's nice. The forums could use some better styling though. If you want to upgrade, follow this great guide written by Podz.
EDIT: I've noticed one bug. If "wordpress" is in the post slug, it has a problem finding the post. Apparently this was a reported bug, but I figured it was worked out before the official release. WP 2.0, almost ready for primetime.
EDIT #2: Having "wordpress" as the category slug was also messing things up. I changed the slug to "wp" and things are working again. How odd.
EDIT #3: A ticket has been reported in trac and you can see an example of the error on one of my test blogs.
EDIT #4Ryan fixed this issue with a new classes.php. Check out the changes.