They share code, but only at the core. Check out the Visual Studio for Mac thread for more details: https://news.ycombinator.com/item?id=14308754 https://news.

They share code, but only at the core. Check out the Visual Studio for Mac thread for more details: https://news.ycombinator.com/item?id=14308754 https://news.ycombinator.com/item?id=14308754 Basically, it's not a full port, and it's probably not ever going to be, but they're trying to gradually make them more alike in terms of features. In that regard they had to start somewhere, and as such, .NET was the obvious candidate for a first release.