[derefr]

What I really meant, without the fancy language, is that stdlib programmers are crotchety greybeards who don't like change-for-change-sake and so default-deny rather than default-accept random patches. That by itself creates a very different level of stability in these projects, where things only ever change if they really need to to fix a specific bug—and even then, the change is pared down to have as little architectural effect as possible.