🛠️ Call of Dutyのアップデート履歴
開発元がSteamで公開した公式告知（パッチ、新コンテンツ、イベント）を時系列でまとめています。タイトルをクリックすると全文を読めます。
2026年10月
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10/24土📢 お知らせCall of Duty: Modern Warfare 4 is Live Worldwide — Play Now!
Call of Duty®: Modern Warfare 4 is now live worldwide! In the epic Campaign, Price is on the run, conflict has erupted on the Korean Peninsula, and a catastrophic weapon of war is on the verge of fall…
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10/24土📢 お知らせCall of Duty: Modern Warfare 4 is Live Worldwide — Play Now!
Call of Duty®: Modern Warfare 4 is now live worldwide! In the epic Campaign, Price is on the run, conflict has erupted on the Korean Peninsula, and a catastrophic weapon of war is on the verge of fall…
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10/22木📢 お知らせModern Warfare 4 Multiplayer Maps and Modes Confirmed
Multiplayer: Launch MapsModern Warfare 4 launches with 12 Core 6v6 maps (plus Shipment arriving shortly after launch on October 27), three large-scale 32v32 Ground War maps, four 2v2 Gunfight maps, an…
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10/21水📢 お知らせDMZ Early Access Deployment to Hajin Is Live
All Operators, this is Watcher. The wait is over. Hajin is now an active Exclusion Zone. Your mission is clear: deploy, complete your objectives, and make it out alive. DMZ Early Access is live now. W…
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10/20火📢 お知らせModern Warfare 4 Progression and Prestige
Modern Warfare 4 Progression DetailsReady for a Modern Warfare 4 Operator career across Multiplayer and DMZ? For most of your Modern Warfare 4 progression needs, head to the Career Menu where you can …
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10/20火📢 お知らせModern Warfare 4 Operators, Weapons, Equipment, and Multiplayer Loadout Intel
Modern Warfare 4 OperatorsOperator Access and Unlock CriteriaThere are 33 Operators to choose from at launch, available both in Multiplayer and DMZ.In Call of Duty®: Modern Warfare® 4, players can now…
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10/17土📢 お知らせModern Warfare 4: Campaign Early Access Now Live
Campaign Early Access is officially live in Call of Duty®: Modern Warfare® 4! The epic narrative plays out across sixteen action-packed missions. Play the role of Private Park Hyun Jun as he and his s…
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10/10土📢 お知らせDMZ Deep Dive, Part 2: DMZ Early Access Confirmed
Breaking News: Modern Warfare 4: DMZ Early Access Confirmed!This is Warfare Without Limits. Experience the gripping story of Modern Warfare 4, as well as DMZ, Call of Duty’s action extraction shooter,…
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10/10土📢 お知らせDMZ Deep Dive, Part 2: How to Play – Forward Operating Base (FOB) Full Intel
Breaking News: Modern Warfare 4: DMZ Early Access Confirmed!This is Warfare Without Limits. Experience the gripping story of Modern Warfare 4, as well as DMZ, Call of Duty’s action extraction shooter,…
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10/6火📢 お知らせDMZ Deep Dive, Part 1: Tour of Duty – Hajin Environments and Threats, Full Intel
Welcome to HajinThis is Call of Duty’s definitive extraction shooter experience, featuring a persistent, open-world combat environment where players loot, complete objectives, fight both enemies and r…
2026年9月
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9/29火📢 お知らせPlayer Trust & Positive Play: September 2026 Progress Report
Following Season 5, this update shares our latest progress reducing disruptive voice behavior across Black Ops 7 and Call of Duty: Warzone, along with ongoing work to support positive multiplayer expe…
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9/29火📢 お知らせModern Warfare 4 PC Trailer, Tech Updates, and More
Prepare for the release of Call of Duty®: Modern Warfare® 4 on PC arriving October 23 on Steam. In close partnership with Infinity Ward, Call of Duty PC lead developer Beenox is working on delivering …
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9/17木📢 お知らせModern Warfare 4: Tokyo Games Show Campaign Trailer
A Darker, More Dangerous CampaignPrice is on the run, conflict has erupted on the Korean Peninsula, and a catastrophic weapon of war is on the verge of falling into the wrong hands. The October 23 lau…
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9/17木📢 お知らせCall of Duty: Modern Warfare 4: The Story So Far
In Call of Duty®: Modern Warfare 4, war erupts on the Korean Peninsula as North Korea launches a full-scale invasion, while half a world away, John Price wages a personal war while on the run from tho…
2026年8月
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8/28金📢 お知らせModern Warfare 4 Open Beta: Maps and Modes
Modern Warfare 4 Beta: ModesNOTE: This intel comes from the Modern Warfare 4 Beta: Everything You Need to Know Blog. Click here for the full blog. The Modern Warfare 4 Open Beta showcases the full ran…
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8/28金📢 お知らせModern Warfare 4 Open Beta: Weapons Guide
Weapons DetailQUICK INTEL:22 Weapons available during the Beta.Nine Weapon classes, from Assault Rifles to Melee Weapons.Primary, Secondary, and Melee Weapon categories.Unlock additional Weapons as yo…
出典：Steam公式告知（6～24時間ごとに更新）。タイトルと概要の著作権は各開発元に帰属します。