Versioning hubs in SignalR

Question

Are there ability to have different versions of the same hub that is chosen based on version sent by JS client ?

Surely there must be some kind of recommended best-practice for handling hub evolution (adding methods, changing parameters in existing methods, removing operations, etc) when you don't necessarily have control over client versions.

Answer 1

public void MyHubMethod(MyRequestModel model)
{
    if (model.Version > 1)
    {
        // If Param2 == null ==> Error!
        // Do stuff with Param2
    }
    else
    {
        // Preserve the old behavior, where Param1 was used and Param2 was optional
        // Do stuff with Param1
        if (model.Param2 != null)
        {
            // Do stuff with Param2
        }
    }
}