Apple has released its much-anticipated update for Mac OS X. Although rumored by many to be called OS X 10.0.5, Apple has kept the numbering order of the updates in tact with this release.
According to the information included with the update, Mac OS X 10.0.4 delivers a significant number of improvements for USB devices, including additional external device support for iTunes burning; improved battery life for many PowerBook G3 systems; and Classic compatibility improvements.

This update provides the latest security updates to OpenSSH and “sudo” services. Also provided is support for Apple’s newest 17-inch flat-panel display.
You can download the update through the Software Update Control Panel in Mac OS X.