dotnet-core/release-notes/3.0/preview/api-diff/preview6/3.0-preview6_System.Runtime.InteropServices.md

System.Runtime.InteropServices

 namespace System.Runtime.InteropServices {
     public class ComAwareEventInfo : EventInfo {
+        public override int MetadataToken { get; }
+        public override Module Module { get; }
+        public override IList<CustomAttributeData> GetCustomAttributesData();
+        public override MethodInfo[] GetOtherMethods(bool nonPublic);
     }
 }