Regarding the deadline for adopting the UIScene life cycle

https://developer.apple.com/forums/thread/788293 In the above thread, I received the following response: "When building with the SDK from the next major release after iOS 26, iPadOS 26, macOS 26 and visionOS 26, UIKit will assert that all apps have adopted UIScene life cycle. Apps that fail this assert will crash on launch."

does this mean that there will be no app crashes caused by UIKit in iOS 26, but there is a possibility of app crashes when building with the SDK provided from iOS 27 onwards?

does this mean that there will be no app crashes caused by UIKit in iOS 26

Correct. The assert is only evaluated when building with the next major release's SDK.

Regarding the deadline for adopting the UIScene life cycle
 
 
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