I don't know if this is a solved problem already, but particularly when questions arise about "new space" that are non-historical in nature, the answer might change over the years. Obviously, I think it is too much work to actively maintain every single question and keep it updated a-la-wikipedia, however I think there should be a mechanism to enable this, or at least, change the "accepted answer".
The post that brought this to mind is this one: How long does the refurbishment process of a Falcon 9 take?
The question, asked about four years ago, was promptly and correctly answered, and the answer was accepted by the original poster. Since then, however, the answer has significantly changed and the random internet users that will stumble across this Q/A likely won't read past the first answer with the massive green check mark next to it.
So, what should the procedure be in this case? I can think of several options, but I'm not sure which one is the "accepted" one or even if there's already a procedure in place for this:
- Do nothing, let the newer, more correct answer languish underneath the old answer
- Edit the old accepted answer with an addendum containing the updated info or pointing towards the newer and correct answer
- Somehow change which answer was accepted. If the user who originally asked is still active, this might be possible, but in many cases questions are asked by dead accounts.
- Something else?