November 2026

[November 3, 2026] API Parameter Updates

Interface:

• /api/v3/account/sub-transfer
• /api/v3/cfd/account/instruments
• WebSocket place-order channel
• WebSocket liquidation channel

Changes:

• /api/v3/account/sub-transfer: Changed clientOid request parameter max length from 64 to 50 characters.
• /api/v3/cfd/account/instruments: Added currentTimezone String response parameter: the instrument's trading timezone, as a UTC offset in hours (e.g. +2 means UTC+2).
• WebSocket place-order channel: Added bboLevel String request parameter (BBO level for limit orders: queue1/queue5/counterparty1/counterparty5; ignored for market orders), and slippageTolerance String request parameter (slippage percentage for market orders, default 2%, range [0.01, 0.05]).
• WebSocket liquidation channel: Added symbol String request parameter: when provided, only public liquidation data for the specified symbol will be pushed.

[November 2, 2026] FastAPI Signature Algorithm Upgrade

• Release date: November 3, 2026

The FastAPI request signature algorithm is being upgraded from MD5withRSA to SHA256withRSA. You only need to change the hash algorithm from MD5 to SHA-256 in both your request-signing code and your callback signature verification code. For example, in Java, replace Signature.getInstance("MD5withRSA") with Signature.getInstance("SHA256withRSA"); the same applies to other languages. The estimated effort is under one hour, plus sandbox testing.
For code examples of signing and RSA encryption/decryption, please refer to the FastAPI Integration Guide
For the detailed migration timeline, please refer to Bitget FastAPI Signature Algorithm Upgrade Notice