Apple has released Logic Pro 9.1 and MainStage 2.1, major updates to Logic Studio (2009) ( ). Available via Software Update, the upgrade features 64-bit support and various bug fixes, and is recommended for all installed versions of the software.
The Logic Pro update supports 64-bit native mode, facilitates compatibility with both 32-bit and 64-bit Audio Unit plug-ins, and offers many other fixes. A long list of updates is available on Apple's support Website.
The MainStage update also supports 64-bit mode and compatibility with both 32-bit and 64-bit Audio Unit plug-ins. Other new fixes include improved compatibility when importing layouts and patches exported from MainStage 1.x and more reliable MIDI input with grouped keyboard controls. A long list of additional improvements is listed on Apple's support Website.
According to Apple's support site, the following features are not available when using Logic Pro 9.1 in 64-bit mode:
- Firewire streaming of video
- Digital Cinema Desktop
- AAF import and export
- EuCon control surface support
- Automap of parameters with control surfaces
- OMF import and export
- Conversion to MP3
- Recycle (REX) file support
- ReWire support
- Vienna Symphonic Library Tool
- Logic Node processing
- AKAI format sample import
While running the updated software in 32-bit mode requires Mac OS X 10.5.7 or later, running the update in 64-bit mode requires at least version 10.6.2.