September 2025

[September 11, 2025] Newly Added Interfaces Related to union Margin

Changes:

1. Newly Added — Query the USDT amount required for switching from union margin to single-currency margin /api/v2/mix/account/switch-union-usdt
2. Newly Added — union Margin Conversion and Repayment API /api/v2/mix/account/union-convert
3. Newly Added — union Margin Configuration Parameter API /api/v2/mix/account/union-config
4. Newly Added — union Margin Currency Transfer Limit API /api/v2/mix/account/transfer-limits
5. Newly Added — New union margin parameters in the WS Account Channel: unionTotalMargin (Margin Amount), unionAvailable (Available Margin), unionMm (Maintenance Margin), assetMode (Account Mode)
6. Newly Added — New assetMode (Account Mode) parameter in the WS Position Channel

[September 4, 2025] Notice: Adjustment to the transferId field in the sub-main account transfer records retrieval function. The transferId will be updated to the one returned during sub-main account transfers.

Interface: /api/v2/spot/account/sub-main-trans-record
Changes:

• Previous generation rule: for transferId: Auto-incrementing ID
• New generation rule: for transferId: Snowflake algorithm

[September 2, 2025] Add reason field for Get Upgrade Status

Interface: /api/v2/spot/account/upgrade-status
Changes:

• Add reason field for Get Upgrade Status