Apple just posted a notice to iOS developers, reminding them that apps submitted to the App Store starting on the 1st of February must have 64-bit support. Additionally, new apps must be built using the iOS 8 SDK. The same requirements will apply to app updates starting on the 1st of June. According to Apple, developers can use the default X code build setting “Standard architectures” to build a single binary with both 32-bit and 64-bit code.
64-bit and iOS 8 Requirements for App Updates
December 17, 2014
As we announced in October, beginning on February 1, 2015 new iOS apps submitted to the App Store must include 64-bit support and be built with the iOS 8 SDK. Beginning June 1, 2015 app updates will also need to follow the same requirements. To enable 64-bit in your project, we recommend using the default Xcode build setting of “Standard architectures” to build a single binary with both 32-bit and 64-bit code.
Note that these changes will not affect iPhone models released before the iPhone 5S, which was the first smartphone to support 64-bit architecture.
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