With the pre-release of iOS-5.1 beta 2, the new iTunes 10.5.2 (new version) is also available for download. This new update of iTunes includes improvements for iTunes Match and fixes audio files problem when playing or importing songs from audio CD’s.
This update official changelog:
What’s new in iTunes 10.5.2iTunes 10.5.2 includes several improvements for iTunes Match and fixes an audio distortion problem when playing or importing certain CDs.iTunes 10.5.1 included:• iTunes Match. Store your entire music library in iCloud, including music you’ve imported from CDs, and enjoy your collection anywhere, anytime, on your iPhone, iPad, iPod touch, computer, or Apple TV.• iTunes in the Cloud. iTunes now stores your music and TV purchases in iCloud and makes them available on your devices anywhere, any time, at no additional cost.• Automatic Downloads. Purchase music from any device or computer and automatically download a copy to your Mac, PC and iOS devices.• Download Previous Purchases. Download your past music, TV, app, and book purchases again, at no additional cost. Previous purchases may be unavailable if they are no longer on the iTunes Store.• Sync with your iPhone, iPad, or iPod touch with iOS 5.• Wi-Fi Syncing. Automatically sync your iPhone, iPad, or iPod touch with iTunes any time they’re both on the same Wi-Fi network.
After the release of iOS-5 in back October, apple is sending updates on regular basis to fix and improve some bugs. However you can download this new version of iTunes for PC and Mac fromapple.com or by clicking Apple Software Update from your Computer.