2 ms·

Because receiving unexpected data is a signal you rarely want to ignore in programming. Doesn’t matter whether you’re gonna use it or not.

• finack 2y ago
  No, that's an important facet of compatibility. If a change is purely additive, existing clients will keep working, something the industry has basically forgotten all about, it seems.
  • wruza 2y ago
    I think I have to agree with this correction in general, but don’t take one commenter for a whole industry please. I’m not even remotely representative of it.
    • finack 2y ago
      I'm not, I'm using my decade of experience and nascent alcoholism.
• int_19h 2y ago
  In OOP, the equivalent - getting an object of some more specific type than the one you asked for at API level - happens all the time.