net9.0 
namespace System.Net.WebSockets
{
    public abstract class WebSocket : IDisposable
    {
        [EditorBrowsable(EditorBrowsableState.Never)]
        [Obsolete("This API supports the .NET Framework infrastructure and is not intended to be used directly from your code.")]
        public static bool IsApplicationTargeting45();
    }
}
nuget.org
0.0 %
Reference this API
.NET 5.06.07.08.09.0
.NET Core 2.02.12.23.03.1
.NET Framework 4.54.5.14.5.24.64.6.14.6.24.74.7.14.7.24.84.8.1
Information specific to net9.0
Assembly

System.Net.WebSockets , Version=9.0.0.0, PublicKeyToken=b03f5f7f11d50a3a

Referencing

The API is automatically referenced.

Obsolete This API supports the .NET Framework infrastructure and is not intended to be used directly from your code.
Platform Restrictions

This API is supported on all platforms.

  • Built-in API
  • Package-provided API