# System.Diagnostics

``` diff
 namespace System.Diagnostics {
     public class Activity : IDisposable {
+        public bool IsStopped { get; }
     }
     public readonly struct ActivityContext : IEquatable<ActivityContext> {
+        public static bool TryParse(string traceParent, string traceState, bool isRemote, out ActivityContext context);
     }
 }
```

