netcoreapp3.0 
namespace Microsoft.AspNetCore.Connections
{
    public class DefaultConnectionContext : ConnectionContext, IConnectionIdFeature, IConnectionItemsFeature, IConnectionLifetimeFeature, IConnectionTransportFeature, IConnectionUserFeature, IDisposable
    {
        public void Dispose();
    }
}
.NET
5.06.07.08.09.010.011.0
.NET Core
2.12.23.03.1
Information specific to netcoreapp3.0
Assembly

Microsoft.AspNetCore.Connections.Abstractions , Version=3.0.0.0, PublicKeyToken=adb9793829ddae60

Referencing

Your project needs a package reference to Microsoft.AspNetCore.App.

Package Microsoft.AspNetCore.App (3.0.0-preview3-19153-02) netcoreapp3.0
Platform Restrictions

This framework does not have platform annotations.

  • Built-in API
  • Package-provided API