Historical Debugging, Profiling, New Diagnostic Tools in Visual Studio 2015

I've been working with Visual Studio 2015 lately, even for older projects. You can create and edit all kids of .NET app from .NET 2.0 all the way up through .NET 4.6, as well as ASP.NET 5 apps on the Core CLR. In my case I've been doing some pair programming with Mark Downie on DasBlog, the blog system that runs this blog right here. DasBlog is very old, and used to be very actively developed. The question "is DasBlog dead" is asked a lot, but the answer is really "DasBlog is done." For years it has been very feature-full and feature-complete. However, this blog has been running on .NET 2.0 for years.