Is SwiftUI backwards-compatible with iOS 12.x and older?

Question

If I have an app made with SwiftUI, will it work for iOS below iOS 13?

Answer 1

I don't think so, because all libraries are already annotated for iOS 13 or higher.

Also, in the documentation, Apple clearly mentions the supported versions:

• iOS13.0+ beta
• macOS10.15+ beta
• tvOS 13.0+ beta
• watchOS 6.0+ beta