This version of iTunes comes with several new features and improvements, including:
● New MiniPlayer. MiniPlayer now includes a beautiful new view that showcases your album artwork In addition, a progress bar is now built right into MiniPlayer.
● Improved Songs View. You can now enjoy your album artwork while in Songs view.
● Multi-Disc Albums. Albums with multiple discs now appear as a single album.
This update also provides performance improvements when searching and sorting large iTunes libraries.
For information on the security content of this update, please visit: support.apple.com/kb/HT1222.
You can download the update by selecting Software Update from the Apple menu at the top left of your screen.