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A comment on Essentials of Apple’s UDID. Parent comment

Re:Essentials of Apple’s UDID by msftguy on Monday August 22, 2011 @11:54AM (#2912854)
It's handled when your push service trims out dead tokens, which it needs to do periodically anyway.
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Re:Essentials of Apple’s UDID by epoxyhockey on Monday August 22, 2011 @02:43PM (#2913543)
Thanks for that info, I somehow overlooked this when rolling my own push provider.

For those still interested: There is a separate feedback service (feedback.push.apple.com) that providers should query periodically. It returns a list of device tokens that are no longer valid for your application.

Reference: http://developer.apple.com/library/ios/#documentation/Networ...

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