情報來源：
https://tinyurl.com/y6ax6djf
Apple has today released the Golden Master (GM) version of tvOS 13 and also
iOS 13.1 beta 4 IPSW restore images for iPhone 11 and iPhone 11 Pro to
developers. This comes after Apple announced that it will release iOS 13.1,
iPadOS 13 and the new tvOS 13 for everyone by early next week.
那今天iphone 11發行的時候順便公佈 13.1不是更好？
13那什麼爛東西～
13.1再早幾天公佈啦！