# October 2025

## [October 29, 2025] Added API for retrieving the maximum transferable amount.

Interface：/api/v3/account/max-transferable<br/>
Changes：

- Added API for retrieving the maximum transferable amount.


## [October 9, 2025] Notice: Optimization of Idempotency Rule for clientOid in Unified Account

Affected APIs: <br/>
REST API: Place Order, Batch Place Order <br/>
REST API: Order Details <br/>
WebSocket : Place Order, Batch Place Order <br/>
Before Optimization: Based on a time limit, the validity period of clientOid does not exceed 2 hours. <br/>
After Optimization: The time limit is removed, and the rule is optimized to be determined by the current order status.
Specifically, clientOid cannot be duplicated during the order pending period; once the order is filled or canceled,
clientOid can be duplicated. <br/>