Apple Seeds Mac OS X 10.6.3 Build 10D538 to Developers - MacRumors
Skip to Content

Apple Seeds Mac OS X 10.6.3 Build 10D538 to Developers

AppleInsider reports that Apple has seeded a new version of Mac OS X 10.6.3, termed Build 10D538, to select developers for testing. According to the report, the update addresses issues in several areas, including QuickTime X and Logic Studio.

More specifically, people familiar with Friday's beta say it includes an update to QuickTime X that, when finalized, will improve security and compatibility while simultaneously enhancing overall reliability. The release will also include tweaks that aim to enhance the performance of Apple's 64-bit Logic pro audio suite. Other planned improvements include better compatibility with third-party printers and OpenGL-grounded applications, those same people say.

One documented known issue reportedly remains in the latest build, involving the viewing of photos via Front Row.

Apple seeded its first test version of Mac OS X 10.6.3 to developers earlier this month, revealing a significant number of fixes in the new update, as well as several outstanding issues still needing attention at the time.

Mac OS X 10.6.3 also reportedly contains greatly improved support for OpenGL 3.0, which would offer significantly improved graphics performance should Apple implement full support for the standards. It is unknown at this time whether the latest 10.6.3 build has made any additional steps toward that goal.

Popular Stories

iPhone Handoff iOS 27 Feature

T-Mobile to Charge $5 a Month for iOS 27 iPhone Handoff

Thursday September 10, 2026 3:58 pm PDT by
T-Mobile will charge customers $5 per month to use iPhone Handoff, an e-SIM feature that allows the same phone number to be used on two separate iPhones. iPhone Handoff requires carrier support, and at launch, only T-Mobile users in the U.S. and Deutsche Telekom users in Germany will be able to use it. T-Mobile says customers can use their number across two compatible iPhone models and...
iphone duo

IMAX Reacts to iPhone Duo's 1:1.4 Aspect Ratio Displays

Friday September 11, 2026 4:42 am PDT by
Production theater company IMAX has responded in a mixed way to Apple's embrace of a 1:1.4 aspect ratio on the iPhone Duo's inner and outer displays. The boxier ratio happens to be very close to the classic "full-frame" IMAX 1.43:1 aspect ratio, which comes from the geometry of the company's original 15-perforation/70mm film system. In response to an X post from someone wondering if we'll see...
iOS 27 Feature Dark

Apple Announces iOS 27 Release Date

Wednesday September 9, 2026 10:46 am PDT by
At its event today unveiling the iPhone 18 Pro, AirPods 5, Apple Watch Series 12, and more, Apple announced that iOS 27 will be released later this month. iOS 27 has already been available as a developer beta since June and as a public beta since July, and Apple today said that the update will be released for all users with a compatible iPhone model on Monday, September 14. iOS 27 is...