Board Thread:Chinese content/@comment-25546049-20160621044431/@comment-11660317-20160710103859

TheHandsomePlant wrote: Wait, doesn't this mean they went from the concept of using to stars to unlock worlds to collect World Keys to unlock worlds, and then went back to using stars to unlock worlds but in post-1.7 fashion? Ya got it right...

So it means Stars, then World Key, and finally, Stars + World Key.