# Update log

| Effective Time (UTC+8) | API                                                                               | Update Type    | Description                                                                                                                                                   |
|------------------------|-----------------------------------------------------------------------------------|----------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------|
| 2026-09-21             | [Get Commission Rate](/products/spot/AccountAPI/GetCommissionRate)                         | Launched       | Added an API for querying the user's best Maker and Taker fee rates for a trading pair.                                                                       |
| 2026-09-21             | [Exchange information](/products/spot/ConfigAPI/GetProductInfo)                            | Modify         | Added the `apiMakerFeeRate` and `apiTakerFeeRate` response fields.                                                                                            |
| 2026-07-15             | *                                                                                 | Launched       | API key trading-pair configuration is now available.                                                                                                          |
| 2026-06-22             | [Access Restrictions](/products/spot/QuickStart/AccessRestrictions)                        | Modify         | Updated access restriction rules.                                                                                                                             |
| 2026-05-28             | [Batch Place Orders](/products/spot/orderApi/BulkOrder)                                    | Launched       | Opened the batch order placement API.                                                                                                                         |
| 2026-03-31             | [Exchange information](/products/spot/ConfigAPI/GetProductInfo)                            | Modify         | Modify the return parameters tickSize and stepSize of the API to String type                                                                                  |
| 2026-03-18             | *                                                                                 | Launched       | Spot Websocket V3 service officially launched; V2 will be decommissioned and no longer maintained. V3 delivers faster streaming speed and enhanced stability. |
| 2026-03-09             | *                                                                                 | Launched       | Spot Market V3 launched with improved performance and stability; V3 will continue to be maintained while V2 support is discontinued.                          |