Apple has finally released iTunes 10.5.1 to the public after months of internal and developer testing. Besides bug fixes, the big change that iTunes 10.5.1 brings is support for iTunes Match, Apple’s cloud-based music storage service that will allow your entire music library, purchased from Apple or not, to be accessible from all your computers and iOS devices for a yearly fee. There’s a good chance that after missing the October launch time frame, Apple will make iTunes Match available today.

UPDATE: Yep, iTunes Match is now available.