SonarCloud in GitHub doesn't recognise C# 12 primary constructors

Question

SonarCloud in GitHub doesn't recognise C# 12 primary constructors and this triggers various false negatives in validation rules.

One example is below, here Sonar interprets a class with primary constructor as an empty class - which is not empty. There are other issues, but it seems like SonarCloud is either not up to date or some configuration might be required?

Answer 1

Looks like C# 12 is not supported yet. On their website it states that ATM (Nov-2023):

Language Versions

• To C#11

Answer 2

After some more digging found this :

https://community.sonarsource.com/t/net-8-and-c-12-support/103931

We now find issues in the new syntax in C#12 such as primary constructors, collection expressions, inline arrays, optional parameters in lambdas, ref readonly parameters and type aliases.

Looks like we'll have to wait until it's sorted out.