There is no new update so far. I haven't seen any cats in my clan with Know-it-all. I assume it's something very rare. Are you using the April version of this game?
im using the 8.7 version which seems to be the newest one. but ive seen so many others with these cool ways to describe a character. like ive seen "nervous + good fighter" and they dont seem to be playing a moded version so idk-?