"We are rolling out the Xbox 360 System Update gradually to all Xbox LIVE users starting today and throughout the next couple weeks to ensure a high quality deployment. Just like any other update to our service, you will know you’ve received it when you
turn on your Xbox 360 console, connect to Xbox LIVE and receive a notification to download the update. It’s important to note that it may take a few days to make its way around the globe. Thanks for your patience if you don’t get it right away!"
Update started on the May 19 - 30, not everyone is gettings it at the same time.
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