Has Unity not updated to C# 10 or higher yet?

[Ryiah]

Unity has been busy overhauling the scripting framework. I wouldn’t expect anything more than what we have now until that work has been completed.

Unity Future .NET Development Status

We’ve had a good bit of interest on various forum threads about Unity’s plans for C# and .NET in the future. Microsoft has been pushing the .NET ecosystem in a number of beneficial directions, and we at Unity want to bring those improvements to our users as soon as we can. While we are not in a position to mention specific details about when various newer .NET features will come to Unity releases, we would like to provide more transparency into our ongoing work to bring these features to Unity…