WordPress 3.0.5 and 3.1-RC4 have been released.
Both releases address three security issues and add additional security enhancements, and 3.1-RC4 fixes “about two dozen additional bugs.”
Both updates are available immediately via your Dashboard, but users updating to 3.0.5 will need to update to the latest release of Akismet again. Core developer Andrew Nacin hopes to minimize “the Akismet update dance” in WordPress 3.1 and put an end to it in WordPress 3.2.