Apple Releases QuickTime 7.6.6 for Leopard and Windows - MacRumors
Skip to Content

Apple Releases QuickTime 7.6.6 for Leopard and Windows

by

170825 quicktime icon

Apple today released versions of QuickTime 7.6.6, addressing a number of reliability and security issues, for Mac OS X Leopard and Windows users. For Snow Leopard users, the update appears to have been folded into yesterday's Mac OS X 10.6.3 update. According to the release notes, the update QuickTime 7.6.6 update includes iMovie-related reliability enhancements for Leopard and H.264 playback improvements for Windows systems.

- QuickTime 7.6.6 for Leopard (68.63 MB): Requires Mac OS X 10.5 or later

- QuickTime 7.6.6 for Windows (32.28 MB): Requires Windows 7, Vista, or XP (SP2 or later)

Full details on the security enhancements included in the update, which cover 16 separate issues, are available in the associated support document.

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...
Read Full Article • 153 comments
deep black iphone 18 pro

Apple Says iPhone 18 Pro Max Sold in U.S. Differs in One Way

Saturday September 12, 2026 3:27 pm PDT by
As noted by Nicolas Lellouche, who writes for the French tech website Numerama, Apple has updated its tech specs pages for the iPhone 18 Pro and iPhone 18 Pro Max to clarify which models are equipped with its new C2 cellular modem and where. Apple now says the iPhone 18 Pro has a C2 modem worldwide, while the iPhone 18 Pro Max uses the chip in every country except for the U.S. According...
Read Full Article • 97 comments
iOS 27 Next to iPhone

Here's When iOS 27 Rolls Out in Every Time Zone

Sunday September 13, 2026 3:00 am PDT by
Apple is about to release iOS 27, which will finally deliver more advanced Siri AI capabilities as well as a variety of other refinements, improvements, and new features to iPhones. It's Apple's biggest software update of the year, and Apple announced at Wednesday's iPhone event that it will be releasing iOS 27 sometime tomorrow – Monday, September 14. iOS 27 won't be the only release on...
Read Full Article • 65 comments