KuCoin has announced a scheduled upgrade to its Futures API on February 9, 2026, starting at 07:00 UTC. The upgrade is expected to last approximately 120 minutes. During this period, users may experience disconnections, latency, or data loss in the Classic Futures WebSocket feed. The upgrade may be postponed if significant market volatility arises prior to the scheduled time. KuCoin encourages users to provide feedback through its official API Telegram group or via email.