MW4 Patch Notes: Latest Update (Oct 30) + Every Change Since Launch

Last checked November 1, 2026, against Infinity Ward's official Modern Warfare 4 Launch Patch Notes and the official Trello board. This page is updated in place every time a new patch lands, and the newest update always sits at the top.

TL;DR: what is the latest MW4 update?

The latest MW4 update is October 30, 2026. It adds the Infected Halloween playlist, raises DMZ Cash rewards (Dynamic Ops up to 10,000–20,000, Side Ops 500 → 2,000, Mission Steps 300 → 500), fixes server crashes and the Platinum Marksman Rifle progress display on PC, and closes exploits on Coal. The next big one is Season 1 at midnight ET on November 6 (9 PM PT on November 5). Its patch notes aren't out yet. Infinity Ward has posted six dated updates in the first eight days since launch, and all six live on one official page.

Every MW4 update so far:

Date	Headline change	Biggest impact on you
Oct 30	DMZ Cash boost, Infected playlist	More DMZ money per deployment
Oct 29	Multiplayer XP increase, Possession playlist	Faster leveling in several modes
Oct 28	First weapon tuning (15 weapons), Quick Fix fixed	SMGs up, LMGs down, dive speed −23%
Oct 25	S&D and Collateral kill XP 100 → 300	Tripled kill XP in two modes
Oct 24	Hijack spawns, exfil helicopter fix	Fewer lost DMZ runs
Oct 23	Launch-day camo and stability fixes	Camo requirements corrected

What changed in the October 30 MW4 update?

Infinity Ward called this "a smaller update" heading into the weekend, but the DMZ economy change is the part that matters.

"Adjusted Cash rewards across DMZ to improve the in-game economy." (Infinity Ward, MW4 patch notes, October 30, 2026)

DMZ activity	Before	After
Dynamic Ops	5,000–10,000 Cash	10,000–20,000 Cash
Side Ops	500 Cash	2,000 Cash
Mission Steps	300 Cash per step	500 Cash per step

Side Ops are the standout, at four times the old payout. If you've been skipping them, they're worth another look before you spend time in the X01 Black Site on November 6.

Everything else in the October 30 notes:

• Playlist: Infected is live as a Halloween party mode.
• Global: fixes for server crashes during gameplay, and Calling Card Challenges showing the reward name instead of the challenge name.
• PC: Platinum Camo progress for Marksman Rifles now displays correctly.
• Multiplayer: Private Match black screen fixed, premature inactivity kicks in Search and Destroy fixed, exploits closed on Coal.
• DMZ: fixes for the Broken Resupply and Hunt Operator Dynamic Ops, the Boss Board Intel purchase that was blocking the Information Power Order, the helmet hit icon, FOB shadows, and a FOB crash from spamming knife attacks.

What changed in the October 29 MW4 update?

This update added the Possession playlist and raised XP again.

"We've increased XP earn rates across several Multiplayer modes to improve consistency in progression." (Infinity Ward, October 29 patch notes)

Infinity Ward didn't publish the new numbers or list the modes, so treat any exact figure you see elsewhere as community testing, not official data. The other changes that matter:

• DMZ camos: fixed squadmate actions not counting toward DMZ Mastery Camo Challenge progress.
• DMZ economy: a first small Cash increase for Dynamic Ops, Side Ops and Story Mission replays.
• DMZ deaths: enemy helicopters can no longer crash into the Exfil helicopter and wipe your squad during extraction.
• Menus: Calling Cards now keep showing their unlock requirements after completion.
• Multiplayer: Recon Drone out-of-bounds fix on Silkworm, exploits closed on Mumbai, redundant callouts removed on Shipment.
• Open item: Infinity Ward says it's still working on granting the DMZ Level 37 3-Plate Armor Vest to players who passed that level before the fix.

What changed in the October 28 weapon tuning update?

This is the only MW4 patch so far that really moved gun balance. It touched 15 weapons, and our full breakdown is in the October 28 update guide. Here's the short version:

Weapon	Change	Direction
ISO Nightshade, VEL 46	Arm and hand multiplier 0.95 → 1.0	Buff
PPSh-41	Same multiplier, ADS 300 → 280 ms, small speed gains	Buff
Wz.55 Striga	Same multiplier, max damage range 440 → 470	Buff
X-58 Nyx	Same multiplier, head multiplier 1.25 → 1.3	Buff
Kastov 762	Max damage range 950 → 1050	Buff
M4	Max damage range 990 → 1020	Buff
Han 86	Range 1120 → 1200, neck and upper torso 1.1 → 1.0	Mixed
ODEN	Neck, upper and lower torso multipliers cut	Nerf
APOC-338	Mid damage 38 → 37, min damage 35 → 33	Nerf
FiNN LMG	Mid range 1720 → 1620, upper arm 1.1 → 1.0	Nerf
Warlord (12G Slug)	Mid damage range 2 900 → 810	Nerf
Patriot XMR	Lower recoil penalty on two attachments	Buff
Hyeon Burst (Hyperburst Apex)	Full-auto damage 37 → 34, range 970 → 1220	Mixed
Type 73 (Assault Apex)	Min damage 19 → 20	Buff

The same update stopped Quick Fix healing through damage, cut dive velocity by 23% as a short-term exploit fix, and made Point Blank and Longshot challenges easier to track by widening both range cutoffs. Every weapon change sits in the Multiplayer section, and Infinity Ward has said it runs "bespoke weapon tuning in both Multiplayer and DMZ."

What changed in the October 23, 24 and 25 patches?

These were cleanup patches, with a few changes worth knowing:

• October 25: kill XP went from 100 to 300 in Search and Destroy and Collateral. The S&D "bomb stretching" fix was rolled back because some players couldn't pick up the bomb. The Prestige reset now clears Loadouts properly.
• October 24: better Hijack spawns, a stop to Party Leaders pulling teammates out of DMZ and marking their Operators MIA, and a fix for the Exfil helicopter disappearing with players inside.
• October 23: fixed Military Camos and Apex Attachments relocking after a weapon Prestige, and fixed "several camo unlock requirements" that were simply wrong. Infinity Ward also confirmed that the Apex Attachments seen in the Beta "will return soon."

Which MW4 patches changed the camo and leveling grind?

If you're mid-grind, this is the list to read. These changes affect how fast you progress or whether your progress counts.

Update	Change	What to do
Oct 23	Inaccurate camo requirements corrected	Re-read your camo challenges, they may differ from old guides
Oct 25	S&D and Collateral kills 300 XP	Good option for a slower weapon XP session
Oct 28	Point Blank and Longshot ranges widened	Retry these if they stalled you
Oct 28	Melee, Backstab and Takedown tracking fixed	Check any stuck challenge that wasn't tracking
Oct 29	Multiplayer XP raised in several modes	Spend double XP tokens with this in mind
Oct 29	Squadmate actions count for DMZ Mastery	Squad up for DMZ camos
Oct 30	PC Platinum Marksman Rifle display fixed	Trust the counter again

The Patriot XMR Platinum issue, where the challenge wouldn't unlock after the Gold requirements, also sat in Trello's Resolved list when we checked on November 1.

Note what isn't here: none of the six post-launch entries mention SBMM or matchmaking. A r/modernwarfare4 thread this weekend asked whether multiplayer had been quietly fixed, because matches felt better after a rough first week. Replies split between SBMM settling on each player and people simply adjusting to the slower movement, and the patch notes back neither. Our SBMM explainer covers what Infinity Ward has actually said.

What's still broken in MW4 right now?

These were open on the official Trello board on November 1:

• Firing Range dummies: bullet impact issues in the front end, with a fix and extra Firing Range improvements "scheduled for November 10."
• Toggle ADS: Sprint or Melee doesn't pull you out of ADS. The fix is "scheduled to arrive with Season 1."
• Classic Prestige via DMZ menus: you can't make new MP classes until you delete old ones with relocked items. A fix is in test. The workaround is in our loadouts not saving guide.
• Calling Cards: some challenges aren't tracking as intended.
• Best Play: selection logic is off in Multiplayer modes.
• Free For All: Final Killcam will be added in a future update, and open voice chat is under review.
• PC: NVIDIA driver 621.01 may cause visual artifacts, and DLSS scaling is unavailable while the VRRT Denoiser is on. If your game looks wrong, start with our graphics fix guide.
• DMZ: some players can't Prestige their Active Duty Operators. Infinity Ward's workaround is using rare (blue) weapons with only 3 attachment slots.
• Xbox: some players are blocked by the Microsoft account device limit.

The Trello card warning players off the KG-9 Drill Charge Apex Attachment on the KG-7 Vulcan moved to Resolved on October 31. That's separate from the regular Drill Charges that players keep calling overpowered, especially in Hardcore. No patch so far has changed those in Multiplayer. The only Drill Charge note is the October 25 DMZ cut to their damage against the Colossus.

For error codes, use our launch errors list. If everyone in your party drops at once, check MW4 server status.

When are the next MW4 patch notes?

The next major patch is Season 1, live at midnight ET on November 6 (9 PM PT on November 5, 5 AM UTC on November 6) on all platforms, per Activision. As of November 1, Infinity Ward hasn't published Season 1 patch notes, a download size, or a time for them. Smaller updates could still land before then, since there have been six in eight days.

Status	What
Confirmed for Season 1	Backstab, Canyon and Shoot House, Grind, Drop Zone, Gauntlet 1v1, DMZ X01, Cronen Osprey and CSG-35, the 100-tier Battle Pass, Toggle ADS fix
Confirmed, dated	Full Warzone intel on the Call of Duty blog on Monday, November 2, ahead of the Warzone integration
Promised, undated	A long-term dive exploit fix, a new bomb-stretching fix, restored Final Killcam in FFA
Not confirmed	Second weapon tuning pass, any SBMM change, Season 1 update size

Our Season 1 roadmap has the full timeline, and we'll add the Season 1 notes to the top of this page when they publish.

Want to finish your grind before Season 1 lands?

Five days is a short window, and Season 1 adds more weapons to level, with the Cronen Osprey alone at 70 levels. If you'd rather not spend it fighting for every kill, bot lobbies are the simplest way to get easier matches while the XP changes above are live.

Lock in your MW4 setup before November 6. Pick the part of the grind you want off your plate:

• MW4 Bot Lobbies: easier lobbies for camo challenges, kills and XP.
• MW4 Mastery Camo Unlock: skip the Platinum and Mastery grind.
• MW4 Weapon Leveling: max your guns and unlock attachments.
• MW4 Account Leveling: reach level 55 and Prestige faster.

Browse everything on the MW4 services hub.

FAQ

What is the latest MW4 update? The latest update is October 30, 2026. It added Infected, raised DMZ Cash rewards, fixed server crashes and closed exploits on Coal. Check the date at the top of this page, because we update it with each new patch.

How often does Modern Warfare 4 get updates? Infinity Ward posted six dated updates from October 23 to October 30, plus smaller live fixes tracked on Trello. Expect that pace to change once the Season 1 schedule starts.

Where are the official MW4 patch notes? Infinity Ward keeps every post-launch update on one Launch Patch Notes page. Live issues go on the Trello board and the @CODUpdates account.

Did a patch change SBMM in MW4? No. None of the post-launch patch notes mention SBMM or matchmaking. Anything claiming a stealth change is speculation.

How much XP did the October 29 update add? Infinity Ward didn't say. The only official number so far is from October 25, when kills in Search and Destroy and Collateral went from 100 to 300 XP.

When do the MW4 Season 1 patch notes come out? Activision hasn't given a date. Season 1 goes live at midnight ET on November 6, and we'll add the notes here as soon as they publish.

Sources

• Call of Duty: Modern Warfare 4 Launch Patch Notes (Infinity Ward, latest entry October 30, 2026)
• Modern Warfare 4 and Warzone Season 1 announcement (Call of Duty blog, October 28, 2026)
• Modern Warfare 4 Trello board (Infinity Ward, checked November 1, 2026)