updated 02:20 pm EST, Wed January 21, 2009
QT 7.6 announced
Apple has launched QuickTime 7.6, addressing seven security issues. The update increases reliability, improves compatibility and enhances security. It is recommended for all QuickTime 7 users. The 75.1MB download (via software download) will work with Mac OS X 10.4.9-10.4.11 and Mac OS X 10.5 and later. It is available for Windows Vista, XP SP2 and SP3 as well.
The update also improves single-pass H.264 encoding quality and increases playback reliability on Motion JPEG media. AAC encoding fidelity is improved and audio tracks export consistently from MPEG video files. Version 7.6 also increases compatibility with iChat and Photo Booth.
Update: QuickTime MPEG-2 Playback Component for Windows has also been updated to add additional validation of MPEG-2 files as a security measure.