Do games need to be "refreshed" after updates?

I’ve managed to keep this character alive quite some time, but that means that I have &quotexplored&quot into undeveloped areas. Do I need to die and start a new game with a new map to see the areas released in new patches?

I’ve been playing the same save since the Ruby update, and I’ve had all the new stuff pop up in it (although Myceligaea is a bit of a pain to get to since it’s switched places with the empty Chelonate).