Modern C# and .NET Tutorial: Cross-Platform Basics/

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Managing C# Compiler Versions and .NET SDK Compatibility

Managing C# Compiler Versions and .NET SDK Compatibility

Learn about .Net SDK versions and C# language compiler configurations.

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The .NET language compiler for C# and Visual Basic, also known as Roslyn, and a separate F# compiler is distributed as part of the .NET SDK. To use a specific version of C#, we must have at least that version of the .NET SDK installed, as shown in the following table:

.NET SDK

Roslyn Compiler

Default C# Language

1.0.4

2.0-2.2

7.0

1.1.4

2.3-2.4

7.1

2.1.2

2.6-2.7

7.2

2.1.200

2.8-2.10

7.3

3.0

3.0-3.4

8.0

5.0

3.8

9.0

6.0

4.0

10.0

7.0

4.4

11.0

Class libraries and .NET standards

When we create class libraries, we can choose to target .NET standard as well as versions of modern .NET. They have default C# language versions, as shown in the following table:

.NET Standards

C#

2.0

7.3

2.1

8.0

Note: Although we must have a minimum version of the .NET SDK installed to access a specific compiler version, the projects we create can target older versions of .NET and still ...