How can you tell what version of Roslyn is included with an SDK?

[parched]

Specifically, I would like to know what version has this fix. I see a bunch of tags in this repo, but they mention VS or VS Code versions, what if I'm using the command line?

[huoyaoyuan]

The minor versions of VS and Roslyn, and feature bands of .NET SDK are currently tightened. For example:

Visual Studio	Roslyn	.NET SDK
17.12 (Future)	4.12	9.0.1xx
17.11	4.11	8.0.4xx
17.10	4.10	8.0.3xx

At the download page of .NET SDK (https://dotnet.microsoft.com/download/dotnet/8.0), you can use Included in to decide relationship between SDK version and VS version. You can also inspect the version config from SDK repo: https://github.com/dotnet/sdk/blob/3f8227e12bb5b84ba9a339b04e0d48185434947e/eng/Versions.props#L161-L166

[parched]

Thanks. How can you go from those versions to a commit in this repo?

[333fred]

The easiest way to determine this, given an SDK, is simply to create a quick test project, put #error version in a .cs file, and let the compiler tell you what version and commit it is.