Apple has released its Mac OS X 10.2.1 update and introduced an update for iTunes, bringing its music application to version 3.0.1.

Both updates are available using the Software Updates Control panel in Mac OS X. Apple hasn't described what's fixed in the iTunes update, but the list of features gathered within Mac OS X 10.2.1 is extensive, as reported yesterday.

Categories updated include: disc burning; digital-hub and peripheral-device support; networking and mail enhancements; printing enhancements; and other improvements.

Some issues addressed in the update include: improved Entourage compatibility; enabling Mac-burned CDs to be read on Windows PCs; the repair of a potential failure found when burning a disc using iTunes 3 at high speed; improved compatibility with certain SCSI-based scanners.

The update also addresses an issue in which a USB keyboard or mouse is not recognized or able to wake the computer after having been connected to or disconnected from an external USB hub while the computer is in sleep.

The full list of enhancements is available on Apple's Web site.