Apple has released new guidelines for iOS apps submitted to the App Store, with the biggest change being that developers must use the iOS 11 SDK.
Developers are advised that they should "update your versi of Xcode to the latest versi of Xcode 9 available the Mac App Store" as this includes the correspding SDK. Apple also claims that apps should be "ready to take advantage of the Super Retina display by respecting security zes, supporting adaptive arrangements, and more."
kick in a while in July, although Apple does not specify an exact date. The company has updated its submissi guidelines, requiring developers to "add screenshots for iPhe X in iTunes Cnect, with a resoluti of 1125 by 2436 pixels for portrait orientati and 2436 by 1125 pixels for landscape orientati ".
Its developer site, Apple says:
iOS 11 offers innovative features and the App Store redesigned to hundreds of millis of customers around the world. Your apps can offer smarter, unified and immersive experiences with Core ML, ARKit, new camera APIs, new SiriKit domains, Apple Music integrati, iPad drag-and-drop, and more. As of July 2018, all iOS app updates submitted to the App Store must be generated with the iOS 11 SDK and must support the Super Retina display of the iOS App. iPhe X.