For the sake of those who failed to notice the release of the new bug-free (free from known bug) Wordress 2.2.2 or Wordpress 2.0.11, please consider the announcement made by the Wordpress team:

Today we have two security-related releases available for both users of our main 2.2 branch and the legacy 2.0 branch. As these releases include only security and minor bugfixes they should not cause any plugin or theme compatibility issues, so you have no good excuse not to upgrade.

You can read the whole post here or go directory to the download area here.