Yo 
Voilà le changelog (en anglais, j'avais fais une traduction, mais "le formulaire à expiré", et en actualisant la page j'ai tout perdu, j'en suis actuellement à ma 4e larme).
Dates de sorties PS4/XONE: 16 Décembre 2014
Dates de sorties PC: Plus tard dans la semaine
Lien: http://forums.ubi.com/showthread.php/975386-Patch-4-Release-Notes
Changelog:
Stability, Performance and Save Game
- Fixed numerous random crashes both on Campaign and Coop
- Implemented multiple optimizations and fixes to improve overall performance
- Fixed save issue caused by the companion app on the main menu (loss of data)
- Fixed save issue caused by contacts list (crash occurring). Users should now have access to save
Gameplay (navigation, fight, stealth)
- Fixed various navigation issues
- Fixed issues with lock picking chests
- Fixed additional haystack issues
Character, AI and Crowd
- Fixed various character, crowd station and NPC issues
Online, Matchmaking, Connectivity and Replication
- Fixed various matchmaking and connection issues both in matches and when starting a match.
- Fixed various issues with voice chat
- Fixed join-in-progress issues
- Fixed various replication issues between host and clients
- Fixed issues with player rank and COOP/heist rewards
- Fixed issues with Helix credits
- Fixed issues with the My Club feature
Menus and HUD
- Fixed HUD icon issues and issues with map information
- Fixed various Initiates issues
- Fixed additional issues with notifications
Mission tweaks (campaign, coop and side content)
- Fixed various low occurrence walkthrough breaks in both Campaign and COOP
- Fixed various NPC issues
- Fixed issue with the quest log disappearing for specific side missions
World and 3D
- Fixed various collision and mesh issues
- Fixed additional issues where player would fall through the world
- Fixed specific areas where textures were missing
PC-Specific
- Fixed crash on "Quit to Windows" in free roam mode
- Fixed crash on accepting multiple "Join the club" requests
- Fixed issues with TXAA
- Fixed issues with PCSS
- Fixed issues with textures on NPCs
- Fixed black texture issues on MSAA-4x, MSAA-8x and TXAA
- Right Control now can be assigned as a hotkey
- Minor UI fixes
En gros, on à des corrections de problèmes concernant un peu tout: les performances et les sauvegardes, l'infiltration et les combats, les personnages/PNJ/foules, le multi et fonctionnalités en ligne, le menu et l'ATH, corrections de script sur les missions solo, coop et annexes, corrections de rendu du monde et des modèles 3D (des petits objets jusqu'aux textures), et quelques corrections spécifiques aux PC, et de l'anti aliasing.
Voilà, répondez au sondage afin de savoir qui profite de ce patch ou non, PC et console confondu !
