The v1.1 designation suggests a significant patch or "Complete" version of the game. Typical updates in this context include:
Toritora’s pixel art is moody and precise. The palette is all bruised purples, sickly greens, and the occasional cruel glint of a distant crystal that promises an exit it will never give. The sound design—dripping water, distant skittering, Alissa’s ragged breath after a long climb—is oppressive in the best way. Alissa and the Have-nots Cavern -v1.1- -Toritora-
Original v1.0 had three endings. Alissa and the Have-nots Cavern -v1.1- -Toritora- has seven. The v1