Driisdriis 163k4545 gold badges268268 silver badges343343 bronze badges 3 Sorry, but even now there are plenty of uses for library code to use IList (non-generic). Anyone who says otherwise hasn't suffered enough reflection / data-binding / etc ;) Then the person calling the method is free to call it with https://archerhtckr.articlesblogger.com/51068402/c-ilist-nerelerde-kullanılıyor-ile-ilgili-detaylı-notlar