Since version 1.13a, the game has received significant content updates, most notably and 1.5 :
A Complete Edition is now available that bundles the base game with over 30 cosmetic DLC items. Potion.Permit.v1.13a.rar
For the most stable experience and access to the latest content (like new romance options), it is recommended to update to the current version (v1.5) via official platforms like Steam or the Nintendo eShop. Potion Permit - Steam Community Since version 1
Often a readme.txt detailing specific version 1.13a changes. Later Major Updates Since version 1.13a
The main Potion Permit.exe file used to launch the game.