If you own a legitimate cartridge or eShop license and are using Atmosphere or ReiNX, here is how to apply the update to your NSP.
legally on your Nintendo Switch, you can safely manage and update the game using official methods: salt and sanctuary switch rom nsp update top
Introduces significant rebalancing for weapons, armor, and magic, along with new game mechanics. Bug Fixes: If you own a legitimate cartridge or eShop