A security and bug-fix release has just been released for Joomla! 3.0.
IMPORTANT NOTE:
Sites being updated from 3.0.0 to 3.0.1 MUST follow an altered update procedure for this release.
New sites, and sites updating from 2.5 to 2.0.1 do not require the hotpatch, and can proceed as normal.
Special thanks goes to the Joomla! Bug Squad, Security Team, and the entire community in fixing testing over 40 tracker items in such a short time!
Respectfully,
Jon Neubauer