v1.6.20

Analyzers

• Add analyzer AvoidInterpolatedStringWithNoInterpolatedText (RCS1214).
• Add analyzer ExpressionIsAlwaysEqualToTrueOrFalse (RCS1215).

Refactorings

• Add refactoring InitializeFieldFromConstructor (RR0197).

Code Fixes

• Add code fixes for CS1503, CS1751.