This document summarizes SignalR Core and its advantages over traditional SignalR. SignalR Core simplifies adding real-time functionality to applications. It is useful for applications that require high frequency updates, dashboards/monitoring, collaboration, or notifications. Key advantages of SignalR Core include no dependency on jQuery, no hub state, high performance, strong typing, and security features like SSL and CORS configuration. Demo applications showcasing SignalR Core include a whiteboard app and Blazor chat demo. Azure SignalR Service is also discussed as a fully-managed service to build real-time apps without capacity or scaling concerns.