Where is RhinoCompute.cs Client for V8?

Can anyone point me at a resource on where to find / how to generate the C# client which you’d use to call V8 RhinoCompute endpoints, previously RhinoCompute.cs? The old file from V7 appears to work, but does not seem to support new features supported by the compute server like specifying tolerances or using a File:// style url instead of just HTTP://.