"Xcode 11 is available in the Mac App Store and includes SDKs for iOS 13, macOS Catalina 10.15, watchOS 6, and tvOS 13. Xcode 11 supports development for devices running iOS 13.1. Xcode 11 supports on-device debugging for iOS 8 and later, tvOS 9 and later, and watchOS 2 and later."
"the core features and functionality of the app must be contained within the binary of the software, rather than made possible by referring users outside of the approved app, including through the use of HTML5"
"Starting April 2020, all new apps and app updates will need to be built with the iOS 13 SDK and support the all-screen design of iPhone XS Max or later."