Code Analysis ReferenceAnalyzersRCS1182On this pageRCS1182: Remove redundant base interfacePropertiesPropertyValueDefault SeverityHiddenMinimum language version-ExamplesExample #1diagnostic.cspublic class Foo<T> : List<T>, IEnumerable<T>{}fix.cspublic class Foo<T> : List<T>{}Applies toExtension for VS 2022Extension for VS CodeExtension for Open VSXPackage Roslynator.Analyzers