🛠️ Overwatch 2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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10/7水✨ 新コンテンツOverwatch Reign of Talon - Season 5: A Grim Doctrine Now Live!
Something truly wicked is being unleashed during Season 5: A Grim Doctrine. The wait is over! Our newest Support Hero is here with the arrival of Doctrine. Freed from his volcanic prison by Doomfist h…
2026年8月
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8/12水✨ 新コンテンツOverwatch Reign of Talon - Season 4: Heroes of Busan Now Live!
Let your teamwork do all the talking during Season 4: Heroes of Busan. The leader of MEKA Squad is ready for her highly anticipated debut as our newest Tank Hero, D.Mon! Take the fight straight to Tal…
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8/11火✨ 新コンテンツEverything New in Overwatch Season 4: Heroes of Busan
Busan is worth defending. Its streets have survived Omnic attacks, its skyline has become one of Overwatch’s most recognizable battlegrounds, and the MEKA Squad has spent years standing between the ci…
2026年7月
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7/31金📢 お知らせJunkrat's Lootbox Hunt
Junkrat's Loot Hunt Junkrat’s Loot Hunt turns the July 31 - August 3 weekend into a reward-fueled blast. Every match you play pushes you closer to Loot Boxes, with flexible challenges that let you go …
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7/23木📢 お知らせOverwatch® BlizzCon® Bundle
The Overwatch® BlizzCon® Bundle brings icy domination straight to your collection with four exclusive in-game items inspired by one of Blizzard’s coldest rulers: the Lich Queen Mei Legendary Skin, the…
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7/10金📢 お知らせJunkrat's Lootbox Hunt
Junkrat's Loot Hunt Junkrat’s Loot Hunt turns the July 10 - 13 weekend into a reward-fueled blast. Every match you play pushes you closer to Loot Boxes, with flexible challenges that let you go all-in…
2026年6月
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6/17水📢 お知らせExcavation Initiative
Excavation InitiativeExcavation Initiative rewards you for doing what you'd already be doing: playing Overwatch. Throughout the season, you'll earn Loot Boxes simply by logging in, completing challeng…
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6/17水🎉 イベントAnima Strike Meta Event
Anima Strike Meta EventAnima Strike is a three-week event that unfolds as you fight your way through the new Tokyo map, where Shion reigns supreme. Conquer daily and weekly challenges to move across t…
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6/17水✨ 新コンテンツOverwatch Reign of Talon - Season 3: Into the Tiger's Den Now Live!
Are you ready to step Into the Tiger’s Den? A new chapter in the Reign of Talon starts here with the arrival of our newest Damage Hero, Shion. As the Hashimoto Clan’s most terrifying elder, Shion brin…
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6/12金✨ 新コンテンツSeason 3: Into the Tiger's Den Livestream | Overwatch Breakdown
Get an even closer look Into the Tiger’s Den during our next Developer Livestream! Be sure to submit your Season 3 questions for a chance to have answered LIVE June 16 at 10am PT. https://blizz.ly/4eh…
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6/10水📢 お知らせEnd of the Line | Shion Hero Trailer | Overwatch
Shion Hero TrailerTime to find out who the streets of Tokyo really belong to. Join Shion, our newest Hero and the Hashimoto Clan's most terrifying elder, as she battles against Sojourn in our latest H…
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6/5金📢 お知らせJunkrat's Lootbox Hunt
Junkrat's Lootbox HuntJunkrat’s Loot Hunt turns the June 5-8 weekend into a reward-fueled blast. Every match you play pushes you closer to Loot Boxes, with flexible challenges that let you go all-in o…
2026年5月
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5/22金📢 お知らせOWCS Championship Clash - Tokyo 2026
Eight top regional teams are now ready and on their way to Tokyo for Champions Clash!On May 21 at 8PM PT, the team will be kicking off an epic on stage face-off to see WHO will be our stage 1 finals c…
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5/14木🎉 イベントOverwatch 10th Anniversary: A Decade of Heroes
Overwatch 10th AnniversaryThe world could always use more Heroes… and after a decade of fighting for a better future, you’re still answering the call. The Overwatch 10th Anniversary is a celebration o…
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5/8金📢 お知らせJunkrat's Lootbox Hunt
Junkrat's Loot Hunt Junkrat’s Loot Hunt turns the May 8 - 11 weekend into a reward-fueled blast. Every match you play pushes you closer to Loot Boxes, with flexible challenges that let you go all-in o…
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。