By which I mean is still funny, and has a minimal amount of jokes which aged poorly (not stuff that aged poorly from stuff they couldn't have known about, such as a joke about someone dying in a certain way, but then someone later died in a similar way, but aged poorly due to how problematic they are).
you wouldn't be able to make blazing saddles today because people would see it and say 'hey this is just blazing saddles this is already a movie'
I wish people would react that way to all the mediocre remakes of good movies, actually