Apple has just released iTunes 10.5 for Mac OS X and Windows which includes bunch of new features, improvements and bugfixes and will also support iOS 5 final version that going to be released on October 12th, tomorrow.
iTunes 10.5 also includes a new service called iTunes Match, a cloud-based service that actually designed for music users by Apple. However, the new iTunes Match service will publicly goes live till the end of this month, reportedly.
You can download iTunes 10.5 for Mac OS X and Windows from the direct link given below:
Download iTunes 10.5 for Mac OS X and Windows