As first stated in the whitepaper, the dotnet yesterday was just as silo'ed as it was, being able to run on its own, that's all.
Today, we're looking at one of the world's most mature framework that is now turning into somewhat like an open community project. IMO, its a move to reorganize a family of platforms that would better suit today's needs as .NET is long due for that. In an attempt to cover how .NET Core has changed in my personal opinion, .NET has been recreated from the ground up by creating a universal base class library known as the .NET Standard, notably .NET Standard 2.0 as of the time of this article. This means that the API that you have implemented might more or less work well with another .NET app based on another platform such as Xamarin or Unity. For instance, platform specific implementations/APIs that are exclusively meant to be built for Unity will exist there, but commonly used libraries a