Ah yes, that makes perfect sense. I was thinking purely from the "you can still use the keywords because of the raw syntax" perspective, but in this case, that wouldn't quite work. Thank you.
Yeah rather than supporting backporting things like that they instead decided that every feature should have a lint that shows you how to update your edition.
Basically the idea was rather than making it as easy as possible to stay on the oldest version they focused that effort on making it as easy as possible to update once you decided that was what you wanted to do.
