According to this meta post we can never recreate old challenges. Of course not, its a duplicate. Makes sense to me. No problems.
Except this challenge can no longer be answered with a language newer than the challenge, even though the requirement that "languages be newer than the challenge" is no longer a valid. If I want to be able to solve that specific challenge ("output a-z") with newer languages, I'd have to post a new challenge first. But it's a duplicate.
So, which takes precedence:
- Challenge spec disallowing new languages
- No duplicate challenges
Or do we recreate the challenge, remove the date specification, and close the older one as a duplicate of the newer?
Yes, this meta post is in response to my answer (and at least two others) being deleted, however as I was not the first person to answer the challenge recently: I had assumed that the date-invalidity to have been true when I answered and I would not have seen the challenge unless it had been answered by another user first.