Logic Pro: Logic Pro 7.2.3 offers optimized audio I/O Support on Mac Pro

Issue or symptom

Some audio I/O combinations on the Mac Pro are not available in the Audio Hardware & Drivers window under Logic Pro 7.2.0 and 7.2.1.

Solution

Updating from Logic Pro 7.2.0/7.2.1 to Logic Pro 7.2.3 gives access to all audio I/O combinations on the Mac Pro.