“Running Logic Pro 9.1 in 64-bit mode requires Mac OS X v10.6.2 Snow Leopard, or later.
“This update improves overall stability, provides numerous fixes and enhancements, and is recommended for all users of Logic Pro 9,” Apple says. The update delivers improved compatibility and numerous fixes and can be acquired from the company’s Downloads section by entering a valid Logic Pro 9 serial number.
Apple has released a new software update for users of the Pro version of its digital audio workstation and MIDI sequencer for Mac OS X.