The convention is a holdover. It does not mean that the code is the same. There’s plenty of NS classes that did not exist before OS X.
I didn’t say the code is the same. I said it’s incorrect to say that “ns” has nothing to do with NeXTSTEP.
Even funnier, there's new ones added for Liquid Glass that still reference NS: NSGlassEffectView
I didn’t say the code is the same. I said it’s incorrect to say that “ns” has nothing to do with NeXTSTEP.