Observation

1. Observable conformance

   Covers Observable(), Observable.

2. Change tracking

   Covers withObservationTracking(_:onChange:), ObservationRegistrar.

3. Observation in SwiftUI

   Covers Managing model data in your app, Migrating from the Observable Object protocol to the Observable macro.

4. Structures

   Covers ObservationTracking, Observations.

5. Functions

   Covers withContinuousObservation(options:apply:), withObservationTracking(options:_:onChange:).

6. Macros

   Covers ObservationIgnored(), ObservationTracked().

Each section links to the official page. Titles and summaries by Extra Credit; the docs belong to their authors.

• Network Extension System
• NetworkingDriverKit System
• Notary API Web
• Notification Center App Services
• Now Playing Media
• Objective-C Runtime App Frameworks
• Open Directory System
• OpenGL ES Graphics and Games
• os System
• OSLog System
• PackageDescription Developer Tools
• PaperKit App Frameworks