[mjw1007]

Hyrum's "law" may claim that somebody out there will run into trouble if I change the internals of my library, but it certainly doesn't say that I have any obligation to care about it.

If you're working for a big company with a monorepo where everyone is trying to live at head, maybe you have to care.

But if I'm giving away my software for free to anyone who cares to use it, I'm entirely comfortable in saying that if you relied on undocumented internals you get to keep both pieces when it breaks.