# August 2025

## [August 28, 2025] Notice: Optimization of Push Frequency for Websocket Order Book Channel (books1)  in Classic Account (v2)

Websocket: Order Book Channel <br/>
Adjustment Content: The push frequency of the order book channel (books1) is optimized to 20ms. The symbols for this optimization are: BTCUSDT, ETHUSDT, XRPUSDT, SOLUSDT, SUIUSDT, DOGEUSDT, ADAUSDT, PEPEUSDT, LINKUSDT, HBARUSDT

## [August 11, 2025] Agent commission API query supports fee deduction

Interface:/api/broker/v1/agent/commission-distribution;/api/broker/v1/agent/customer-commissions;<br/>
Changes:
-  Agent commission API query supports fee deduction details

## [August 11, 2025] API Global rate Limit Adjustment

Changes:
-  There is an overall rate limit rule of 6,000 times per IP per minute. After the rate limit is triggered, the recovery time is adjusted from 1 minute to 5 minutes.

## [August 6, 2025] Add unrealizedPL field for sub-account futures asset info

Interface:/api/v2/broker/account/subaccount-future-assets<br/>
Changes:
-  Add unrealizedPL field for sub-account futures asset info

## [August 6, 2025] Add marginCoin field for historical transaction details

Interface:/api/v2/mix/order/fill-history<br/>
Changes:
-  Add marginCoin field for historical transaction details

## [August 4, 2025] Delisting of Futures Demo Pairs

Futures demo pairs have been delisted. Please use the [demo trading](/docs/classic/demo-trading/rest-api) for simulated trading.