With iOS13, your application can use darkness mode, the new design of the iPhone, fast and easy login with Apple, and the latest developments in ARKit 3, CoreML3 and Siri. Build your applications using Xcode 11GM preview, test them on iOS devices running the latest GM preview, and submit them for review.
Starting in April 2020, all new applications and application updates will need to be built using iOS 13 SDK and support the full screen design of the iPhone XSMax or later.
Apples iOS 13 will be officially launched on September 20, and iOS 13.1 will be officially launched on September 30.
Source: Product Play Responsible Editor: Yao Liwei_NT6056