https://wccftech.com/ghost-of-tsushima-update-1-05-lethal-difficulty-lower-intensity-combat/

Ghost of Tsushima has dropped its first major post-launch update, and it adds some new options for players on both sides of the skill spectrum. On the one hand, we have the new Lethal difficulty, which makes enemies more aggressive, but also increases the deadliness of Jin’s katana, and on the other hand, we have Lower Intensity Combat Mode, which relaxes the timing required during combat and stealth.

Here are the full patch notes for Ghost of Tsushima update 1.05: