We’ve just released the second preview of the upcoming 2.4.0 release of ASP.NET SignalR. As we mentioned in our previous blog post on the future of ASP.NET SignalR we are releasing a minor update to ASP.NET SignalR (the version of SignalR for System.Web and/or OWIN-based applications) that includes, support for the Azure SignalR Service, as well as some bug fixes and minor features.