As reported by Announcement, KuCoin will conduct a non-disruptive upgrade of its PRO-API on March 23, 2026 at 06:00 UTC, lasting approximately 30 minutes. During the upgrade, PRO WebSocket public channels may experience disconnections, data delays, or possible data loss. After the upgrade, the WebSocket frame format for JSON market data will change from Binary Mode to Text Mode. Users with custom parsing implementations are advised to update their systems accordingly. The upgrade may be postponed in case of significant market volatility, with a separate announcement provided. For feedback, users can contact api@kucoin.com or join the official API Telegram group.
KuCoin Announces Non-Disruptive PRO-API Upgrade on March 23, 2026
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Summary
KuCoin is set to roll out a non-disruptive PRO-API upgrade on March 23, 2026 at 06:00 UTC, as part of a broader blockchain upgrade. The maintenance will take around 30 minutes. During this time, PRO WebSocket public channels could face disconnections, data delays, or data loss. Post-upgrade, the JSON market data WebSocket frame format will shift from Binary to Text mode, requiring users with custom parsing systems to make adjustments. The network upgrade may be delayed due to major market swings, with an additional notice issued. Users can send feedback to api@kucoin.com or reach out in the official API Telegram group.
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