Disable or refine RS1041?

[rmannibucau]

RS1041 triggers when used with .net9, it is unlikely, in particular in (incremental) source generators used in the context of a single project (not intended to be consumed or intended to be consumed by the same net framework).
Forcing to use netframework2.0 is oddish so think this rule is not that accurate as of today

[joshendriks]

In case you are sure that you will not need net framework support just create a .cs in your project with the following content:

[assembly: System.Diagnostics.CodeAnalysis.SuppressMessage(
    "RoslynDiagnostics",
    "RS1041:Do not use obsoleted APIs",
    Justification = "Suppression is necessary for this project.")]

Alternatively disbale the rul in your ruleset or editorconfig. I prefer having it in c# code

Now that the rule is ignored you can set the target framework to net8.0

[rmannibucau]

@joshendriks goal here is to have a good default and not need to be explicit. msbuild has all the meta to auto disable it

[joshendriks]

@rmannibucau Yes, agreed, this is a workaround