IS YOUR APP READY FOR IPHONE DUO?

Summary from the TLDR Dev newsletter

Apps built with an older SDK may be confined to a narrow part of the iPhone Duo's inner display, so the first step is rebuilding with Xcode 27.1 and the iOS 27.1 SDK. From there, layouts should respond to size classes, asymmetric safe areas, rotation, multitasking, and controls near the fold.