Call of Duty: Modern Warfare 4 is here, and, as is always the case, the game will receive regular updates throughout its lifecycle, with patches addressing gameplay, weapon balancing, multiplayer, bug fixes, and new content. Whether you’re looking for details on the latest update or trying to find changes introduced in an earlier patch, this page will track all of the Modern Warfare 4 patch notes in one place.
Below, you’ll find the latest Modern Warfare 4 update, a breakdown of its biggest changes, and links to previous patch notes. This page will be updated whenever Activision releases a new patch or hotfix.
Call of Duty: Modern Warfare 4 Latest Update
Modern Warfare 4 Launch Patch
Release Date: October 21
The first major patch for Modern Warfare 4 comes as players have been playing the campaign and DMZ in early access, but ahead of the game’s multiplayer launch. This update focuses on multiple aspects, including UI/UX fixes, multiplayer crashes, audio issues, and a lot of DMZ concerns. Specifically on DMZ, this first update fixes problems like incorrect XP being reported and missing prompts that stall progression. There’s even a small fix to an issue in the campaign that could block progression.
Modern Warfare 4 Launch Patch Notes
The Call of Duty: Modern Warfare 4 patch notes come courtesy of Activision.
UI/UX
- Improved communication around Shared Attachments (see above)
- Reduced or eliminated pre-game countdown timers that had been originally intended to give previous generation consoles time to load
- Added logic to start pre-loading maps earlier to avoid slowdowns waiting for the map to finish loading
- Gameplay Improvements
- Reduced blur size on splashes to improve gameplay visibility
- Gunny
- Improved the positioning of Gunny tutorials
- Reduced the notifications you get about Gunny
- Gunny got a facelift!
- Weapon Builds
- Weapon Builds were previously automatically saved when players left the Gunsmith, flooding their Build list. Weapon Build saving in Gunsmith is now a manual process.
- Weapon Builds edited in-match are now automatically saved.
- Various minor improvements and fixes to the front end
- Several hundred bugs. Killed dead.
AUDIO
- Added missing destruction audio for various destructible objects across Multiplayer maps.
- Fixed an issue where mounted vehicle turrets were missing audio.
- Fixed an issue where Heartbeat Sensor pings could become muted underwater.
- Added audio cues when sending and receiving text messages.
- Fixed issues causing audio dropouts when using the Assault Drone and Bomb Glider.
- Adjusted the audio mix and audible distances for the Chopper Gunner and its weapons.
- Updated Gunship audio to improve the overall Killstreak experience.
- Improved the Nuke sequence audio mix and fixed issues causing audio dropouts.
MULTIPLAYER
- Fixed a server crash that could occur during Multiplayer matches.
- Fixed various visual issues on Cachette.
- Fixed an issue where the Seeker Drone could incorrectly deploy out of bounds and be destroyed in certain areas of Multiplayer maps.
- Fixed an issue where the Killstreak counter could reset after using the Argonaut.
- Fixed an issue where match completion events were not being properly recorded in Multiplayer and DMZ.
- Spawns have been reoriented around consistent flow and making sure you’re never far from the fight.
DMZ
- Addressed on Oct. 20:
- Addressed various crashes and stability issues, including a crash when breaching the door in Breaking New Ground.
- Fixed an issue where the After-Action Report could incorrectly display 0 XP earned after a player’s first match.
- Fixed an issue where the ISO Apex Attachment would not function as intended in DMZ.
- Fixed an issue where players could get double completion credit for story missions.
- Fixed an issue where enemy AI could move into unintended areas when a player was downed during Breaking New Ground.
- Fixed some instances where enemy AI could run over players while infilling.
- Fixed an issue where some Dynamic Operations “find the keypad codes in safes” could appear in locked spaces.
- Fixed an issue where only the player who dealt the final blow to a Commander received XP and progress toward the “King Slayer” Calling Card when playing in a squad.
- Fixed an issue where the Impact Smokes Pro Trait would not activate when a player was downed.
- Fixed some incorrect DMZ Orders description text.
- Fixed an issue where shadows could visibly pop in and out when moving around the FOB.
- Fixed an issue where the tablet screen could fail to turn on after searching the crashed drone in Breaking New Ground.
- Fixed an issue on where a missing prompt could prevent players from progressing the Chemical Denial Dynamic Op at NuriGO Mall on Nintendo Switch 2.
- Fixed an issue where the Gunsmith Attachment menu could remain stuck onscreen during deployment.
- Fixed an issue where players could not purchase saved Blueprint modifications on Nintendo Switch 2.
- Fixed some areas where players could get stuck in the rocks in Hajin.
- Fixed an issue where players could not equip an Active Duty Operator in their Showcase.
- Fixed an issue where selecting Untrack Recipe with no recipes tracked at the 3D Printer could kick the player out of the FOB.
- Fixed an issue where selling starting equipment or dismissing Active Duty Operators with starting equipment equipped before your first deployment could result in a soft lock.
- Addressed on Oct. 21:
- Fixed an error that could occur when opening the Dog Tag Case.
- Fixed an issue where the Toxic Intercept Op could incorrectly fail after completing the Defend the Bomb objective.
- Fixed a performance issue on PC when holding a Heartbeat Sensor with a weapon equipped.
- Fixed an issue where AI enemies could run over players during infiltration in NK Wilderness.
- Fixed an issue where Dynamic Operations text could display incorrectly when Menu Text Size was set to Larger or Largest.
- Fixed an issue where the Orders rewards section of the End Game Report could appear in low resolution.
- Fixed some unintended voice lines during Breaking New Ground.
CAMPAIGN
- Fixed a progression blocker in the Hotel sequence of Counter Attack.
WEAPONS
- Fixed an issue where the Firing Range could incorrectly display a 0.00 TTK for the Rezi 12 Shotgun.
- Added weapon level icons to Melee and Launcher weapons.
TACTICALS
- Flash and Concussion effective range and duration have been slightly reduced.
KILLSTREAKS
- UAV health has been increased from 100 to 150, following feedback that UAVs were too easy to shoot down after their health was reduced during the Beta.
- Wheelson pathing and targeting logic have been reworked to be more aggressive and prevent confusion when targets change quickly.
PERKS
- Battle Hardened will now more effectively negate most of the effects from Tactical grenades like the Flash, Concussion, and Screamer Mine.
- Resupply has been buffed to provide your first recharge faster.
- Blood Rush has been updated so that pressing the sprint key automatically triggers Tactical Sprint by default. If you prefer to manage this directly, head towards the Movement Advanced Settings to adjust it.
Previous Call of Duty: Modern Warfare 4 Patch Notes
There’s only been one patch thus far for Modern Warfare 4. You can check out the full update notes above.
Modern Warfare 4 Patch History
| Update | Release Date | Highlights |
|---|---|---|
| Launch | October 21, 2026 | DMZ fixes after early access, server crash fixes for multiplayer, killstreak and perk tuning. |
This section will be updated whenever Activision releases another Modern Warfare 4 update.
Modern Warfare 4 Patch Notes FAQ
Where can I find the latest Modern Warfare 4 patch notes?
The latest patch notes are listed at the top of this page, including a summary of the biggest changes and a link to the full update breakdown.
How often does Modern Warfare 4 receive updates?
Update timing can vary. Check this page for the latest patch releases, hotfixes, and seasonal updates as they are announced.
What do Modern Warfare 4 updates change?
Updates may include weapon balancing, gameplay adjustments, bug fixes, multiplayer changes, performance improvements, and new content.
Does Modern Warfare 4 have hotfixes?
Hotfixes may be released to address specific issues between larger updates. We’ll add them to the patch history when details become available.
Mike has been covering the gaming industry since 2012, and has reported on some of the largest events in the industry while also working as an investigative reporter. Outside of…
More from Mike Straw
Comments