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SwiftUI's new Observation approach

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@DashingDave  

I just watched the WWDC video on the changes to observable objects and such, and I was wondering if anyone could confirm my understanding. (As I see it, it's really just shortening words and attempting to reduce the number of property wrappers people need to worry about.) Here's what I took away from it:

  1. Rather than using the ObservableObject protocol, we now declare a class @Observable
  2. @EnvironmentObject is now @Environment
  3. @Binding is now @Bindable
  4. @State is ...still @State

As they weren't mentioned, I'm not sure about this one: with the changes, are @StateObject and @ObservedObject no longer necessary?

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