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Apple Seeds Mac OS X 10.6.3 (Build 10D558) to Developers

Apple is rapidly seeding new versions of Mac OS X 10.6.3 to developers as they prepare for its release. The latest version was released to developers today and represents build 10D558. Changes listed are detailed by iPhone in Canada:

- Performance improvements for 64-bit Logic
- Addresses compatibility issues with OpenGL-based applications
- Includes changes to QuickTime X that increase reliability and enhance security
- Improves printing reliability and compatibility with 3rd party printers
- Addresses issues that cause background message colors to display incorrectly in Mail
- Issues that caused machines using BTMM and Bonjour Sleep Proxy to wake unexpectedly
- Issues with recurring events in iCal when connected to Exchange servers

The list of changes is identical to the previous build, so the actual changes are likely much less notable. We'd expect Apple to be releasing Mac OS X 10.6.3 to end users in the near future.