This document summarizes the new features in iOS 13 according to a presentation given by Yu Yu. It lists the new features for users, including dark mode, improved Maps, Control Center changes, Memoji, and optimizations to Photos, Safari, and CarPlay. It also outlines new capabilities for developers such as ARKit 3, SwiftUI, Combine, indoor maps support, and desktop-class browsing on iPad. The document concludes with noting it is about WWDC 2019 and opens the floor for questions.