The First Descendant’s September 17, 2026 Update 1.4.3 added Ultimate Hailey and her Descendant Story, Cradle of Evolution, a new Trigger Module, balance changes, and Ultimate Module improvements. Nexon’s event listing also includes limited-time activities for Eastern Mystic Gley, Marksman’s Precision Strike, and Luna and Lepic. The update has not been verified as the game’s “biggest” by a published comparison, and the available official summary does not give specific farming-buff values.
What did The First Descendant’s September update add?
Nexon’s Update 1.4.3 entry is dated September 16, while the update is described as released on September 17, 2026. The official preview named these major additions and changes:
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- Ultimate Hailey and the Hailey Descendant Story
- Cradle of Evolution content
- A new Trigger Module
- Descendant rebalancing
- Transcendent Weapon rebalancing
- Improvements to Ultimate Modules
Nexon’s update listing and developer-note summary are the official references for the update’s scope. The developer note is a summary of planned major content, so it should not be treated as a complete description of every shipped mechanic.
What are the event deadlines?
Nexon lists the event end times below in PDT. The first three were still within their published windows on October 8, 2026 UTC; event availability can change, so check the in-game event screen for the current status.
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| Event | Listed end time |
|---|---|
| [Attendance] Eastern Mystic Gley | October 21, 2026, 23:59 PDT |
| Marksman’s Precision Strike Mission | October 14, 2026, 23:59 PDT |
| Descendant Rebalance: Luna & Lepic | October 14, 2026, 23:59 PDT |
| [Attendance] Karel’s Mothership: Phase Conquest Celebration Event | Ended September 30, 2026, 23:59 PDT |
These dates come from Nexon’s September 17 event listing; they are not recurring schedules.
Did the update buff Descendants or farming?
Nexon’s summary confirms that Descendant balance work was part of the update, and the event listing names a Luna and Lepic rebalance activity. The available official summary does not establish specific farming-buff percentages or other numeric gains. It is therefore not possible to claim a particular increase in drop rates or farming efficiency from these materials.
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Is this The First Descendant’s biggest update yet?
“Biggest update yet” is not substantiated by a published size metric or a direct comparative statement in the official update materials cited here. The documented additions make Update 1.4.3 a substantial content and balance update, but the superlative should be understood as headline framing rather than a verified ranking.
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Nexon’s update notices identify Steam, Xbox, and PS5. The notices do not establish that every platform received the update at precisely the same time or that all platform details are identical.
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