https://wccftech.com/ghost-of-tsushima-1-1/

A new Ghost of Tsushima update is releasing next week, introducing the Legends co-op multiplayer mode, New Game +, and much more.

Sucker Punch Senior Game Designer Darren Bridges confirmed today on the Official PlayStation Blog that the 1.11 update will be released for free on October 16th. The biggest addition will be the already mentioned Legends mode.