Update 1.04 Patch Notes in Assassin’s Creed Black Flag Resynced

Title Update 1.0.4 is the first big cleanup patch after launch, and it is built around fixes rather than new content. The update targets the kinds of problems that can quietly ruin a playthrough: saves that misbehave, missions that stop advancing, ships doing strange things, cutscenes feeling wrong on PC, and map or menu bugs getting in the way.

The patch is available on Xbox Series X|S, PlayStation 5, and PC, with platform-specific download sizes listed below.

Update 1.04 release date, platforms, and download size

Assassin’s Creed Black Flag Resynced Update 1.04, also listed as Title Update 1.0.4, rolls out on July 16, 2026. Some earlier timing described it as going live on July 16, so players checking around release should simply look for the 1.0.4 patch prompt on their platform.

KEY!This is a bug-fix and stability update, not a content drop. The point of the patch is to make the existing game more stable, more readable, and less likely to break progression.

Major fixes in Update 1.04

The headline changes are spread across almost every part of play: loading, combat flow, sailing, missions, menus, presentation, and PC frame pacing. It is the kind of patch players feel most when things stop interrupting the session.

Save, localization, performance, and PC cutscene fixes

Multiple save/load issues have been fixed, which is the most important general reliability change in the patch. For a long, mission-driven game, that kind of repair matters because even a small loading problem can turn into a lost session or a blocked run.

The update also fixes localization issues for Simplified Chinese, Italian, and Arabic. Alongside that, a dubbing problem affecting voiceover playback and cutscene visuals in localized versions has been addressed, so story scenes should feel more consistent across supported languages.

Update 1.04 also fixes multiple lighting issues while players are indoors or inside caverns. The El Tiburon battle now gives better hints for breaking his defense, and the advanced parkour option has had its double jump behavior corrected.

Gameplay, harpooning, and Jackdaw bug fixes

Several gameplay fixes target the odd bugs that break movement or control. Players should no longer clip into the ship’s hull while swimming, and the lockout that could happen when trying to move immediately after exiting a mini-game has been fixed.

Ally behavior also gets attention. Allies should no longer stop moving after an assassination, and civilians should no longer wander into brawl zones where they do not belong. During harpooning, the patch fixes a problem where players could get stuck if boarding began right after the harpooning sequence.

The Humpback Whale tail slap bug is gone too, so players should be able to dodge the fatal hit during harpooning as intended. Combat tools are cleaner as well, with aiming now returning properly after Edward is hit while using the rope dart or smoke bomb.

On the Jackdaw side, the patch fixes the ship disappearing after being upgraded while docked. Edward’s hands also no longer freeze during the mini-game, closing out one of the smaller animation problems in the update.

World, map, UI, visual, and audio fixes

The open world gets a broad pass in Update 1.04. Animus wall problems have been fixed, fast travel issues have been cleaned up, and several unintended reachable areas have been closed off so exploration stays within the intended space.

Weather has been adjusted so fog can return properly, while the overall balance now allows more sun and clear skies. Floating bushes have also been grounded, which should make roaming and sailing feel less visibly broken.

On the UI side, players should no longer get stuck on the desynchronization screen after repeatedly opening and closing the menu. The map fix is just as useful for completion players: location activity icons should no longer disappear after rebooting the game.

The presentation cleanup covers minor graphical issues, hideout ship model visuals, character clipping, clothes clipping, and texture problems on some side characters. Audio also gets one very specific fix: a single body drop should no longer play as if several bodies hit the floor at once.

Quest progression fixes in Update 1.04

The mission fixes are the part of this patch most likely to matter if you are already deep into a story playthrough. Rift: Wayward Desires now properly handles the second zipline if Edward falls from the first one, preventing that mission flow from breaking after a traversal mistake.

Imagine My Surprise and The Commander’s Ruse no longer block each other from being completed at the same time. That matters because simultaneous objective handling can break mission chains when one quest state incorrectly interferes with another.

The Other Brother now prevents Upton from being assassinated early. That fix keeps the mission sequence intact, instead of letting an early action collapse the intended progression.

The Observatory has been corrected so allies come in together with Roberts as intended. A Governor also no longer traps players behind an Animus wall and prevents progress, which was one of the more severe blockers addressed in the update.

Content not added in Update 1.04

Update 1.04 does not add new quests, weapons, Jackdaw upgrades, or major systems. Its purpose is maintenance: fixing saves, stability, mission blockers, controls, weather, UI, presentation, and PC cutscene behavior.

Launch-build Resynced features such as seamless city sailing, stealth changes, Eagle Vision and Observe changes, rebuilt combat, secondary Jackdaw weapon modes, and earlier rope dart access are part of the base game, not new additions from this patch.

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