What's new in iTunes 10.3

 Introducing iTunes in the Cloud beta. The music you purchase in iTunes appears automatically on all your devices. You can also download your past iTunes purchases. Where you want, when you want. 

• Automatic Downloads. Purchase music from any device or computer and automatically download a copy to your Mac and iOS devices. 

• Download Previous Purchases. Download your past music purchases again at no additional cost. Your purchases are available in the iTunes Store on your Mac or in the iTunes app on your iPhone, iPad, or iPod touch. Previous purchases may be unavailable if they are no longer on the iTunes Store.

iTunes 10.3 also adds Books to the iTunes Store, where you can discover and buy your favorite books on your computer and automatically download them to iBooks on your iPhone, iPad, or iPod touch.

This version also allows you to use Automatic Downloads with apps and books or download previously purchased apps and books from your computer or iOS device.

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

SHA1 for Mac= a4707d61a4d0b2d3a76b77b57a6a56f2eef9a5c1

SHA1 for Windows 32 bit= 493256bc58f7a3979e1a75b9cc809d82b716f62d

SHA1 for Windows 64 bit= ca6256d385c703e21e3dc6bcbca0aa94276f2c54