Apple today told developers that soon all new apps submitted to the iTunes App Store must support the screen of the latest iPhone. "Starting April 2018, all new iOS apps submitted to the App Store must be built with the iOS 11 SDK, included in Xcode 9 or later," said Apple in an email to developers. "All new apps for iPhone, including universal apps, must support the Super Retina display of iPhone X." The iPhone X display swaps the 16:9 aspect ratio found on the iPhone 6, 7, and 8 for a 2:1 aspect ratio with a notch at the top. It also boosts the resolution beyond full HD. Apps that haven't yet been updated for the iPhone X often have black bars at the top and bottom, which look unsightly. Developers can find the iOS 11 SDK on Apple's developer web site.


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