The short answer is: Mostly.
If you are playing Assassin’s Creed Unity today—whether on disc or digital—Patch 1.6 is mandatory. In fact, modern consoles automatically download it. But there are two contemporary considerations: Assassin 39-s Creed Unity Patch 1.6
Enemy AI behavior received a major overhaul. Guards will no longer shoot through solid walls or spot the player through opaque obstacles. Furthermore, the patch fixes input latency issues during combat, allowing players to execute perfect parries and dodges reliably. 4. Connectivity and Co-op Matchmaking The short answer is: Mostly