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What is the highest iOS version that a iPhone 5 can use and how can I get it? My iPhone 5 is in iOS version 9.3.5 right now. Also, if I update the iOS version, would there be any problems while using the device?

The final update of the any iPhone that not be better for use i think,We saw the iPhone 4 performance on final update.No dough Apple i like most but i won`t update the final end update.

Hi @beastsav Based on this chart I believe you can update to iOS 10. As the iPhone updates, there is a tendency to gain features and loose performance. If this is what you’re looking for, then I would recommend it. Many apps will eventually require software updates for them to work properly as well, further adding to reasons for complete the highest update possible.