WordPress 2.0.5 was released late last week. This new version of WordPress mainly contains bugfixes, security fixes, and some very minor enhancements. According to the original announcement at Wordpress.org, the fixes center around feeds, custom fields, and internationalization. Links to download WordPress 2.0.5 are available at the "official" WordPress 2 download page.
Also, some WordPress users after upgrading to version 2.0.5 have experienced Server 500 errors. If you are one of these unfortunate users, check out Mark Jaquith's blog for a plug-in that should fix this known problem.