LOL go to menu and then game help. search for ring set bonus. you'll find how to get the sets again. yes the sets did changed. if it doesn't glow don't sweat. just refresh the page you'll see it glow again. it doesn't need to glow to work btw. its just a glitch. and yes you did miss a LOT. there's DMS, Fortune Favor, Sugar Rush, zOMG pets, and so on. the game became harder too lol and there's changes on the rings. like knife doesn't help with atk anymore.