Version: 2019.4
Referencing additional class library assemblies
Scripting backends

C# compiler

To compile C# source code in a Unity Project, the Unity Editor uses a C# compiler.

Scripting Runtime Version C# compiler C# language version
.NET 4.6 equivalent Roslyn C# 7.3

The Editor passes a default set of options to the C# compiler. To pass additional options in your project, see the documentation for Platform Dependent Compilation.


  • 2018–11–07 Page published

  • Roslyn compiler exposed in 2018.3 NewIn20183

C# compiler Roslyn compiler NewIn20183

Referencing additional class library assemblies
Scripting backends