This update addresses general compatibility issues, improves overall stability, and fixes a number of other minor issues. The issues addressed include:
- GarageBand track effects and Audio Units can now be added to a guitar track
- Improved support for Apogee audio interfaces
- Faster switching to full screen in Magic GarageBand
- Improved access to audio monitoring settings
The update weighs in at 139.29 MB and requires OS X 10.5.6 or later.