Apple has just let out iTunes 10.5.1 Beta for Windows and Mac a few minutes after it pushed out the public release of iTunes 10.5 final version. The iTunes 10.5.1 Beta has been released to the developers to continue their work on the upcoming iTunes Match Beta service. You can get your hands on iTunes 10.5.1 Beta update if you are a developer.
The release note said the following :
iTunes 10.5.1 beta 1 includes several performance enhancements and bug fixes, and is a required update for all subscribers to iTunes Match beta. iTunes Match is not included in the iTunes 10.5 GM release
Your iCloud libraries will be deleted at the end of this beta.
Backup regularly and do not delete the music you add to iCloud from your computer. Apple may periodically delete all iCloud libraries during the beta period. This will require you to scan, match, and upload songs again. Also note that some of the features and optimizations of iTunes Match may not be available during this beta.
Download iTunes 10.5.1 Beta for Windows and Mac from the dev center
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