Mac OS X 10.6.3 Update: addresses OpenGL, QuickTime and other issues

Mac OS X 10.6.3 has just been released. It is downloadable via MacOS Software Update or from Apple’s Support page in combo format. It weighs in at a rather heavy 438,7 MB for my MacBook Pro via Software update, but takes a whopping 719.23 MB of space as the combo update. It IS recommended for all Snow Leopard users, but as always, comes with the proviso: early adopters are often bug-rooters as is found in this 10.6.3 Apple Discussion thread. Remember to backup your Mac before installing any system-dependent files or updates; you don’t want this to happen (From Apple Discussion thread):

I just updated to 10.6.3 using the System Update on my first-generation MacBook Pro. I’m now getting a kernel panic at startup, and cannot boot the system.

Specifically, I’m seeing:

panic(cpu 0 caller 0x2a96f6): “Version mis-match between Kernel and CPU PM”@/SourceCache/xnu/xnu-1504.3.12/osfmk/i386/pmCPU.c:720

OSX 10.6.3 update specifics after the gap:

Apple 10.6.3 Support Documentation

The 10.6.3 Update is recommended for all users running Mac OS X Snow Leopard and includes general operating system fixes that enhance the stability, compatibility, and security of your Mac, including fixes that:

  • improve the reliability and compatibility of QuickTime X
  • address compatibility issues with OpenGL-based applications
  • address an issue that causes background message colors to display incorrectly in Mail
  • resolve an issue that prevented files with the # or & characters in their names from opening in Rosetta applications
  • resolve an issue that prevented files from copying to Windows file servers
  • improve performance of Logic Pro 9 and Main Stage 2 when running in 64-bit mode
  • improve sleep and wake reliability when using Bonjour wake on demand
  • address a color issue in iMovie with HD content
  • improve printing reliability
  • resolve issues with recurring events in iCal when connected to an Exchange server
  • improve the reliability of 3rd party USB input devices
  • fix glowing, stuck, or dark pixels when viewing video from the iMac (Late 2009) built-in iSight camera

For detailed information on this update, please visit this website:

For information on the security content of this update, please visit:

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