Ouyi will upgrade the USDC spot trading pair

To provide deeper liquidity and tighter spreads, and further optimize your trading experience, Ouyi will upgrade USDC trading pairs on August 20, 2025 at 17:00 (UTC+8). Upgrade Plan: * Start Time: 17:00, August 20, 2025 (UTC+8) *Duration: 10 minutes *Impact: During the upgrade period, you will not be able to trade all USDC related spot trading pairs (such as BTC/USDC, ETH/USDC, SOL/USDC). In addition, the system will cancel all pending orders for USDC related spot trading pairs and cease strategic trading for USDC related spot trading pairs. After the resumption of trading, the upgraded trading pairs will be displayed in the form of currency/USD ⓢ on the front-end. After the upgrade is completed: * App and web users: After the transaction is restored, you can place a new order for the cancelled order. If you are using the Ouyi App, please upgrade the software to version 6.129.0 or above (strategy trading version 6.133.0) to avoid functional or display issues after the upgrade. *API user: *Switch your spot trading pairs, abandon the - USDC suffix and switch to trading currency pairs with the - USD-USD suffix, such as changing from trading BTC-USDC to trading BTC-USD-USD *Please fill in tradeQuoteCy: "USDC" as the order parameter to specify the pricing currency. This parameter will become mandatory in the future For more details, please refer to the API update log. Thank you for your continuous support of Ouyi. Ouyi will continue to provide you with better products and services! Ouyi team July 18th, 2025