[anchpop]

That would be unlikely, as they probably want to support everyone's old apps for a little while at least

[Klonoar]

Nope, iOS13 is required, as SwiftUI is a system framework.

[pier25]

So I guess macOS 10.15 too, yes?

[snuxoll]

According to the documentation the latest OS release is required on all platforms SwiftUI targets.