Apple sets May 1 deadline to stop accepting iOS apps using UDIDs
Beginning May 1, Apple (NASDAQ:AAPL) will no longer accept iOS applications or app updates that access unique device identifiers [UDIDs] in iPhones and iPads.
"Please update your apps and servers to associate users with the Vendor or Advertising identifiers introduced in iOS 6," states a brief post on the News and Announcements for Apple Developers site. "You can find more details in the UIDevice Class Reference."
Apple first warned iOS developers in August 2011 that it would limit their access to UDIDs (alphanumeric strings unique to each Apple device), stating on its Website that UDID access "has been superseded and may become unsupported in the future." Developers and social gaming platforms once relied on UDIDs in iOS devices to collect personal data about consumers, even building detailed profiles outlining how they use applications; mobile advertising networks also depended on UDIDs as a campaign targeting tool, tracking consumers from app to app to determine how, when and why they respond to campaigns.
In March 2012, Apple began reaching out to some developers, urging them to halt their reliance on UDIDs; soon after, the company began aggressively rejecting new app submissions that incorporated UDID use.
Also on May 1, Apple will institute rules insisting that all new apps and app updates submitted to the App Store must be built for iOS devices with the Retina display and iPhone apps must also support the 4-inch display on the iPhone 5, effectively forcing developers to use its iOS 6 Software Development Kit.
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