Some older iPhones will not be part of the iOS 11 party scheduled to arrive this fall. According to Apple’s web site, the iPhone 5, the iPhone 5c, and the fourth-generation iPad cannot handle iOS 11’s 64-bit app requirements, so they will not be receiving the updated operating system. Devices that can run iOS 11 include the iPhone 5s and SE, 6 and 6 Plus, 6s and 6s Plus, and the 7 and 7 Plus. On the tablet front, iOS 11 is compatible with the iPad Mini 2, 3, and 4, the iPad Air and Air 2, the newer iPad, as well as the big and small iPad Pros. The older iPhones in question use 32-bit processors, while every iPhone and iPad released since 2013 uses 64-bit processors (with 32-bit backward compatibility built in.) One of the under-the-hood changes in iOS 11 is dropped support for 32-bit apps, moving all apps to 64-bits. Since the iPhone 5 and 5c can only run 32-bit apps, iOS 11 simply won’t work as intended. Apple has been warning developers to update their apps with 64-bit compatibility for some time. Starting some point later this year, Apple will entirely drop 32-bit apps from the App Store. Such apps have likely not been updated by their developers in years. iOS 11 is available to developers in beta. The final version for consumers isn’t expected to arrive until the fall.
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