See on Scoop.it – Just Joomla!

IMPORTANT NOTE FOR 3.0.0 SITES: If you plan to update a site from 3.0.0 to 3.0.1, you need to install the Joomla 3.0.0 Hot Patch before doing the update to Joomla 3.0.1.

Joomla 3.0.1 contains:
1 security issue fixed
1 new feature
47 tracker issues fixed

See on www.joomla.org