The Assassin's Creed Rogue update v1.1.0, often associated with the CODEX release, was a critical patch designed to address PC performance issues, including resolution bugs and UI glitches. This update improved overall stability and fixed Uplay synchronization issues shortly after the game's initial launch. For details on the original patch, see the report from Assassin's Creed: Rogue is out now with day-one patch 10 Mar 2015 —
Why does the scene care about this specific update? Because the vanilla CODEX crack (v1.0.0) had a peculiar issue: after long play sessions. assassins creed rogue update v110codex exclusive
DataPC_ACR_Shell_Worlds.forge (the world geometry files).