Next time you start the game, assuming you are connected to the internet, you will be promoted to update your game.
The following information is about what the title update contains.
ACB PATCH v1.02 NOTES:
General Stability Improvements.
Tunnel Fast-Travel Bug - Using the Tunnel before being shown how by Machiavelli no longer results in immediate desynch.
Subject 16 Completion Bug - You will be able to re-enter the Animus after completing the Subject 16 puzzles.
Invisible Crowd in Sequence 5 - The crowd around Micheletto during the play no longer contains invisible people.
Red Room Stuck - Ezio will not remain stuck in the Red Room when accessing a cluster from The Truth.
General Matchmaking Improvements - Certain crashes and infinite loading loops eradicated in this patch.
Extensive Refinement and Tweaking - Bonus scores altered (Coop bonuses divided by 2), pursuers must wait longer if their target is in the process of killing their own target, improvements to spawn point selection in team games.
Wrong Information - End Game page will no longer show inaccurate match information.
8-Player Private Groups - You will always be able to invite up to 8 players to a private group.
Please do not worry if you see an error that you reported has not been addressed, all are being reported and the team will continue to work tirelessly to repair any persisting problems.