# Lost Ark changelog > Embark on an odyssey for the Lost Ark in a vast, vibrant world: explore new lands, seek out lost treasures, and test yourself in… - Vendor: Smilegate RPG - Category: Games - Official site: https://www.playlostark.com - Tracked by: What's New (https://whatsnew.fyi/product/lost-ark) - Harvested from: Steam (app 1599340) - Entries below: 12 (newest first) What's New is an index, not a publisher: every entry below links to the vendor's own release notes, which are the authoritative source. Entries are labelled where they are hand-curated sample data, pre-releases, or drawn from a secondary source such as a developer blog. ## Releases ### The Summer Extremes Release Notes - Date: 2026-07-14 - Original notes: https://store.steampowered.com/news/app/1599340/view/685259198517217229 - Permalink: https://whatsnew.fyi/product/lost-ark/releases/steam-685259198517217229 - **added** — Kazeros Raid Act 1 Extreme with three escalating difficulty tiers - **added** — Solo Mode for Kazeros Raid Act 4 and the Denouement - **added** — Matchmaking Mode for Serca with reduced difficulty and dynamic party scaling - **added** — Paradise Season 4 - **added** — Summer Night Festival - **added** — Summer cosmetics collection HEROES OF ARKESIA, The summer heat brings new challenges. The Kazeros Raid Act 1 Extreme will push your raid party to the limit across three escalating difficulty tiers. Solo Mode expands to Kazeros Raid Act 4 and the Denouement, and a new Matchmaking Mode lets you tackle Serca at a reduced difficulty with dynamic party scaling. Paradise Season 4 begins, the Summer Night Festival kicks off on Arkesia's shores, and a collection of summer cosmetics arrives in the store. Downtime will begin on July 15 at 12 AM PT (7 AM UTC) and is expected to last 6 hours. Read on for the full list of new content, events, store offerings, and other changes (https://www.playlostark.com/en-us/game/releases/summer-of-extremes). ### The Twilight Isle Release Notes - Date: 2026-06-09 - Original notes: https://store.steampowered.com/news/app/1599340/view/681878146434205594 - Permalink: https://whatsnew.fyi/product/lost-ark/releases/steam-681878146434205594 - **added** — Introduce the Cadarum Isles - **added** — Add the Horizon Cathedral Abyssal Dungeon - **added** — Add 2026 Global Exclusive cosmetics collection - **added** — Add a new Ark Pass - **added** — Add progression events to help gear up - **changed** — Adjust class balance - **changed** — Change raid gold rewards ##### Heroes of Arkesia, A new chapter begins. Uncharted islands have emerged from the mists, a forgotten cathedral holds new challenges, and a massive wave of progression events is here to help you and your friends gear up for what comes next. This update introduces the Cadarum Isles, the Horizon Cathedral Abyssal Dungeon, the 2026 Global Exclusive cosmetics collection, a new Ark Pass, progression events, class balance adjustments, raid gold changes, and more. Downtime will begin on June 10 at 12am PT (7am UTC) and is expected to last 6 hours. Read on for the full list of new content, events, store offerings, and other changes (https://www.playlostark.com/en-us/game/releases/the-twilight-isle). ### Return Of Argos Release Notes - Date: 2026-05-13 - Original notes: https://store.steampowered.com/news/app/1599340/view/668364810351544526 - Permalink: https://whatsnew.fyi/product/lost-ark/releases/steam-668364810351544526 - **added** — Snowflake Argos standalone frost-themed event encounter - **added** — New Wandering Merchant cards to prepare for the upcoming Horizon Cathedral Abyssal Raid - **added** — Return of the Golden Frog Event Shop ##### Heroes of Arkesia, Argos is back. The Holy Beast has been reimagined as a standalone frost-themed event encounter, and whether you cleared the original on day one or never got the chance, Snowflake Argos has something for you. This update introduces the Snowflake Argos event alongside new Wandering Merchant cards to help prepare for the upcoming Horizon Cathedral Abyssal Raid, the return of the Golden Frog Event Shop, and more. Downtime will begin on May 13 at 12 AM (7AM UTC) and is expected to last 7 hours. Read on for the full list of new content, events, store offerings, and other changes (https://playlostark.com/en-us/game/releases/return-of-argos). ### The Shadows Rise Release Notes - Date: 2026-04-14 - Original notes: https://store.steampowered.com/news/app/1599340/view/523121185690490237 - Permalink: https://whatsnew.fyi/product/lost-ark/releases/steam-523121185690490237 ##### Heroes of Arkesia, The Shadows Rise and await your arrival. This update features loads of new content, including the very first Shadow Raid - Serca, Witch Of Pain, new Tier 4 progression with Destined Tremor Gear, challenging solo content including Chaos Rift and Haal's Hourglass, Inanna's Blessing, and more. Downtime will begin on April 15 at 12 a.m. PT (7AM UTC) and is expected to last 5 hours. Read on for the full list of new content, events, store offerings, and other changes (https://www.playlostark.com/en-us/game/releases/the-shadows-rise). ### Ends of the Abyss Release Notes - Date: 2026-03-10 - Original notes: https://store.steampowered.com/news/app/1599340/view/533251118084394320 - Permalink: https://whatsnew.fyi/product/lost-ark/releases/steam-533251118084394320 ##### Heroes of Arkesia, Welcome to the Ends of the Abyss. This update features the epic conclusion to the Kazeros storyline, balance changes, Guardian Raid improvements, Paradise Season 3, and more. Downtime will begin on March 11 at 12 a.m. PT (7AM UTC) and is expected to last 7 hours. Read on for the full list of new content, events, store offerings, and other changes (https://www.playlostark.com/en-us/game/releases/ends-of-the-abyss). ### Guardians' Rage Release Notes - Date: 2026-02-03 - Original notes: https://store.steampowered.com/news/app/1599340/view/538877446766725297 - Permalink: https://whatsnew.fyi/product/lost-ark/releases/steam-538877446766725297 ##### Heroes of Arkesia, The flames of vengeance have arrived. This update introduces the new Guardianknight class, Challenge Express, Event Powerpass, progression system revamp, skill recommendation revamp, quality of life improvements, milestone missions, Lost Ark’s fourth anniversary celebration, and more. Downtime will begin on February 4 at 12 a.m. PT (8 a.m. UTC) and is expected to last 6 hours. Read on for the full list of new content, events, store offerings, and other changes (https://www.playlostark.com/en-us/game/releases/guardians-rage). Thanks for your support and we'll see you in Arkesia! ### Thaemine Extreme Release Notes - Date: 2026-01-13 - Original notes: https://store.steampowered.com/news/app/1599340/view/506224446916268246 - Permalink: https://whatsnew.fyi/product/lost-ark/releases/steam-506224446916268246 ##### Heroes of Arkesia, A variety of events arrive to help with progression, with something for everyone — fun events for Guardians and Chaos Gates, and the return of one of the most dangerous threats in Arkesia; Darkness Legion Commander Thaemine. Downtime will begin on January 14 at 12 AM PT (8:00 UTC) and is expected to last 4 hours. Read on for the full list of new content, events, store offerings, and other changes (https://www.playlostark.com/game/releases/thaemine-extreme). ### Winter's Wrath Release Notes - Date: 2025-12-16 - Original notes: https://store.steampowered.com/news/app/1599340/view/613182487250602004 - Permalink: https://whatsnew.fyi/product/lost-ark/releases/steam-613182487250602004 ##### Heroes of Arkesia, New solo challenges and a variety of progression updates arrive to help adventurers prepare for the battle at Diaspero against the Lord of the Abyss and his forces. Downtime will begin on December 17 at 12AM PT (8AM UTC) and is expected to last 8 hours. With new permanent system changes to help progression for all players, and the latest round of super-charged progression events, a journey to challenge the latest raids is open for all. Read on for the full list of new content, events, store offerings, and other changes (https://www.playlostark.com/en-us/game/releases/winters-wrath). ### Kazeros The First Update - Date: 2025-12-02 - Original notes: https://store.steampowered.com/news/app/1599340/view/506220641733575762 - Permalink: https://whatsnew.fyi/product/lost-ark/releases/steam-506220641733575762 Heroes of Arkesia, Race to clear Kazeros the First for prestigious rewards, check out the Monarch skins showcase, and more. Downtime will begin on December 3 at 12AM PT (8AM UTC), and last approximately 4 hours. May the best group win this special event! The race to clear the most difficult version of Kazeros Raid Denouement: Final Day will begin on December 3 at 10AM PT (6PM UTC). Vanquishing Kazeros in this special version will pose quite a challenge, even for the best raiders in Lost Ark. Leaderboards will celebrate the top 10 teams from each in-game region (North America and Europe) throughout the race and beyond. It may take some time for groups to be added to the leaderboard, as each group will need to be reviewed to ensure they meet the conditions. For more details on the rules and requirements, [view the event announcement article](https://www.playlostark.com/en-us/news/articles/kazeros-first-clear-race-details). ##### Regional Rewards Players in North America and Europe will compete against other players in their region for the following rewards: - First Place in each region - Portal Statue - Special Animated Titles - Top 1 – Kazeros The First - Top 2 – Kazeros The Second - Top 3 – Kazeros The Third - Top 4 - 10 – Kazeros Top 10 - Stronghold Structure - Will have the players names etched into it along side their clear time. Users can see the information when interacting with the Stronghold Structure. - Rank 1 - Unique 1st place Structure - Rank 2 & 3 - Structure unique to places 2 & 3 - Rank 4 - 10 - Structure unique to places 4 - 10 - Adventure Banner - Rank 1 - Unique - Rank 2 & 3 - Banner unique to places 2 & 3 - Rank 4 - 10 - Banner unique to places 4 - 10 Please note that it will take several weeks to receive the top 10 rewards. However, upon clear, all players who vanquish the special difficulty will receive a chest titled “Clear: Kazeros The First". It contains the following: - Title "Lord of the Abyss" - MVP Background: Final Day - Mount: Brilliant Wings - Lounge: Fortress of Destruction - Insignia "Conqueror: Kazeros The First Difficulty" - 100,000 Gold ##### The First Mode General Notes To enter, players much reach Item Level 1740 or higher and clear Act 4: Fortress of Destruction – Hard Difficulty (Gate 1 & 2). The First difficulty is treated separately from Normal/Hard in terms of entry count and rewards. Entry is limited to once per week per character. Rewards can be obtained once per roster during the entire event period. The Ark Grid effect is disabled during the Kazeros The First event. It will be re-enabled after the event ends. The First difficulty does not have revives. Extreme coordination and survival are required. ##### Monarch Skins Showcase One armor darker than the depths of Kazeros’ malice. Another brighter than the brilliance of the heroes’ ambition. Which will you wear to usher in a new age of Arkesia? We can’t wait to watch everyone face Kazeros The First and look forward to your triumphs! ### Day of Prophecy Release Notes - Date: 2025-11-18 - Original notes: https://store.steampowered.com/news/app/1599340/view/609802415845147988 - Permalink: https://whatsnew.fyi/product/lost-ark/releases/steam-609802415845147988 ##### Heroes of Arkesia, The Day of Prophecy is upon us. Only you can determine the fate of Arkesia. This update introduces the Kazeros Raid Act 4: Fortress of Destruction, Kazeros Raid Denouement - Final Day, the Ark Grid system, Paradise Season 2, the Kazeros Challenge event, Diaspero Clear event, and more. Downtime will begin on November 19 at 12AM PT (8AM UTC) and is expected to last 7 hours. Read on for the full list of new content, events, store offerings, and other changes (https://www.playlostark.com/en-us/game/releases/day-of-prophecy). ### Fog of Diaspero Release Notes - Date: 2025-10-28 - Original notes: https://store.steampowered.com/news/app/1599340/view/501713868279517250 - Permalink: https://whatsnew.fyi/product/lost-ark/releases/steam-501713868279517250 ## Heroes of Arkesia, The corruption that began in the depths has crossed over the Kurzan Abyss, tainting the seas. The long-lost body of Kazeros has begun to take form within the fog. What will befall Arkesia in the future? This update introduces the Kazeros Raid Prelude: Destined Trajectory, October Ark Pass, Lucky Box event, Korean balance patch that arrived alongside Kazeros, Proving Grounds competitive match season 7, and more. Downtime will begin on October 29 at 1 a.m. PT (8 a.m. UTC) and is expected to last 6 hours. Check out the [Fog of Diaspero Release Page](https://www.playlostark.com/en-us/game/releases/fog-of-diaspero) for the full list of new content, events, store offerings, and other changes. Thanks for your support! We'll see you in Arkesia. ### Rimeria Besieged Release Notes - Date: 2025-09-16 - Original notes: https://store.steampowered.com/news/app/1599340/view/545620341180859881 - Permalink: https://whatsnew.fyi/product/lost-ark/releases/steam-545620341180859881 ##### Heroes of Arkesia, A new threat looms over Rimeria. Downtime will begin on September 17 at 1 a.m. PT (8 a.m. UTC) and is expected to last 8 hours. This update introduces Assault: Rimeria, the Combat Analyzer, the Honor System, and more. Read on for the full list of new content, events, store offerings, and other changes (https://www.playlostark.com/en-us/game/releases/rimeria-besieged). Thanks for your support! We'll see you in Arkesia.