This update improves overall stability and addresses some minor issues including the following:
- Improved compatibility with full-screen view and Mission Control in OS X Lion
- The sample preview option available when importing samples into Ultrabeat now functions correctly
- The destination for recorded files is now properly reset to the new Project folder after using "Save As..." command
This update is recommended for all users of Logic Pro 9.
For detailed information on this update, please visit this website: Logic Pro Release Notes