If someone today said they love 4.5.1 unpatched, that would be .
: Improved the debugging experience for asynchronous code by providing better call stack visibility in the Call Stack and Tasks windows.
You cannot review .NET 4.5.1 without mentioning VS 2013. This was the Golden Era of the MSDN developer workflow.
Applications compiled for 4.5.1 run seamlessly on newer framework versions without source code changes.
