iTunes 10.6 adds the ability to play 1080p HD movies and TV shows from the iTunes Store.
This release also includes many improvements for iTunes Match, including:
• Improved song matching
• Improved album artwork handling, downloading, and display
• Addresses an issue where songs may skip when playing from iCloud
The iTunes 10.6 download clocks in at 126MB and is available via Apple's iTunes download page or via Software Update.