Documentation for microsoft.net.compilers package (at https://www.nuget.org/packages/Microsoft.Net.Compilers/) says
.Net Compilers package. Referencing this package will cause the project to be built using the specific version of the C# and Visual Basic compilers contained in the package, as opposed to any system installed version.
... which begs the question: what version of the compiler is in the package?
That same page says that it supports .NET framework 4.5, but that's not the compiler version, is it?
There are several versions of the package. I assume then that different versions of the package may contain different versions of the compiler. Is there a table somewhere that specifies which compiler version is in each package version?
I guess the package contains both c# and vb compilers, but I'm only interested in c#.