According to CoinMeta, OKX has announced that it will stop accepting connections via port 8443 for WebSocket on October 31, 2026, in order to support network infrastructure upgrades. All affected domain names currently support port 443 and will continue to provide connections via port 8443 until October 31, 2026. This change is a major update, and users need to remove port 8443 from their WebSocket URL accounts before the deadline.