But a short answer to your specific question is that your old answers will still be marked correct (there is a hidden whitelist covering the old radical names).
There is also a ‘tool’ accessible via the menu in WK which will let you explicitly relearn any radicals which have changed, should you want to (personally I’m doing a mix depending on how obvious the change is / how much I like the radical / how close to burning it I am).
I recommend re-learning them. It won’t take too long and there’s not that many. Also, there is a list somewhere of what Kanji have changed to the On’Yomi reading. They aren’t marked as changed so they will trip you up in reviews. There’s just a few and at level four it should be easy to learn the new meaning. “Stone” is one of them.