I don't see the 2021 problem as much with Grok, but it is wired up to X for realtime learning, it can also fetch and crawl pages. Occasionally I'll use dev branch of some codebase, like Zig, and I just have to let it know the version I'm on and remind it to use the dev version. Occasionally I'll have to paste in the new API and then it works out what the answer should be.

A lot of the other problems mentioned still hold though.