The onSubmit view modifier is new to iOS 15. I was reading this HWS article (https://www.hackingwithswift.com/quick-start/swiftui/how-to-take-action-when-the-user-submits-a-textfield) about it, and tried to run the example snippet of code.

struct ContentView: View {
    @State private var password = ""

    var body: some View {
        SecureField("Password", text: $password)
            .onSubmit {
                print("Authenticating…")
            }
    }
}

However, I get an error saying "onSubmit(of:_:) is only available in iOS 15.0 or newer". I'm running the latest version of Xcode (Xcode 13), which was meant to support iOS 15 features? Any ideas what might be going on?

Your're quite right! Many thanks!