Upgrade to Joomla! 1.0.4
1.0.4 is available as a Full Package, which contains all Joomla! files and a Patch Package which contains only the files that have been changed by the Security work conducted.
1.0.4 Changelog
1.0.4 Version Information
Thanks to Alan Urquhart, the creator of the Joomla! logo, a Brand Guide is now available.
There are also a variety of logos that you can use, available in multiple graphic formats for you to downlad. More will be added to over time.
The Brand Guide contains a number of important design points and it is important that you review this guide before creating any graphics of your own that incorporate the Joomla! logo.