Based on Announcement, KuCoin Futures will perform a system upgrade on the FOK (Fill or Kill) order function from 02:00 to 08:00 UTC on January 8, 2026. During the upgrade, the FOK order function will be temporarily unavailable, and any FOK orders submitted via manual or API will be rejected. Other order types and Futures trading functions will remain unaffected. After the upgrade, the FOK function will resume normal operation without further announcement.
KuCoin Futures to Upgrade FOK Order Function on January 8, 2026
KuCoin AnnouncementShare
Summary
KuCoin Futures will conduct a blockchain upgrade to enhance the FOK (Fill or Kill) order function from 02:00 to 08:00 UTC on January 8, 2026. During this network upgrade, the FOK order feature will be unavailable, and all manual or API-submitted FOK orders will be rejected. Other order types and Futures trading will remain operational. The FOK function will return to normal after the maintenance.
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