iTunes 10.6.3 includes support for OS X Mountain Lion and addresses a number of important issues:

• Addresses a problem where iTunes may become unresponsive when syncing an iPad (1st generation) that contains an iBooks textbook
• Fixes a problem where photos synced to a device may appear in an unexpected order
• Resolves an issue where iTunes may unexpectedly delete playlists created on a device
• Fixes issues where iTunes may unexpectedly delete apps on a device
• Improves overall performance and

For information on the security content of this update, please visit: support.apple.com/kb/HT1222

SHA1 - (Mac) e673e5cbd2955130efbc92a788fff178e66bd155

SHA1 -(Win) 2618f701f1d1a853e33138a57bec193bcd08438e