net48 
namespace System.Cloud.Messaging
{
    public abstract class MessageContext
    {
        public IFeatureCollection? SourceFeatures { get; }
    }
}
.NET 5.06.07.08.09.010.0
.NET Core 3.1
.NET Framework 4.6.24.74.7.14.7.24.84.8.1
Information specific to net48
Assembly

System.Cloud.Messaging , Version=9.0.0.0, PublicKeyToken=31bf3856ad364e35

Referencing

Your project needs a package reference to System.Cloud.Messaging.

Package System.Cloud.Messaging (9.0.0-alpha.1.23421.4) net462
Preview TBD: This API is marked as experimental.(more details)
Platform Restrictions

This framework does not have platform annotations.

  • Built-in API
  • Package-provided API