WordPress 2.3.3 was released today with yet another critical update, this time in the XML-RPC implementation.

Updating was fast and easy again, with a total time of 5 minutes again for two blogs. Disable plugins, then run:
svn sw http://svn.automattic.com/wordpress/tags/2.3.3/
After that, enable the plugins again.

Now I wish that the plugins would start working on subversion too, so I can update those the same way.