[Announcement] Upcoming Update: New cumFeeDetail Field & Execution Enhancements

Dear Users,

We will soon be updating the following order-related and execution-related endpoints:

REST API:
• GET /v5/order/realtime
• GET /v5/order/history
• GET /v5/execution/list
https://bybit-exchange.github.io/docs/v5/order/open-order
https://bybit-exchange.github.io/docs/v5/order/order-list
https://bybit-exchange.github.io/docs/v5/order/execution

WebSocket API:
• "order" topic
• "execution" topic
• "spread.order" topic
• "spread.execution" topic
https://bybit-exchange.github.io/docs/v5/websocket/private/order
https://bybit-exchange.github.io/docs/v5/websocket/private/execution
https://bybit-exchange.github.io/docs/v5/spread/websocket/private/order
https://bybit-exchange.github.io/docs/v5/spread/websocket/private/execution


What’s Changing:
• Orders (GET /v5/order/realtime, GET /v5/order/history): A new field "cumFeeDetail" (JSON format) will be introduced to record fees and their corresponding fee currency. This will replace the existing fields "cumExecFee"
• WebSocket ("order", "spread.order" topics): A new field "cumFeeDetail" will be added to indicate trading fee details. This will replace the existing fields "cumExecFee" and "feeCurrency". "feeCurrency" fields will be deleted.
• Executions (GET /v5/execution/list, WebSocket execution, spread.execution topics): A new field "feeCoin" will be added to indicate trading fee currency. "feeCurrency" and "execFeeV2" fields will be deleted.

Timeline
• Testnet: Already live
• Mainnet (Gray Release): September 18, 2025
• Mainnet (Full Release): September 23, 2025


Action Required
Please review this update and adjust your integrations accordingly. We encourage you to test the changes on testnet and share any feedback with us.

Thank you for your continued support.
The Bybit Team

Dear Traders,

We would like to inform you of an upcoming major update to Bybit’s Unified Trading Account (UTA). A new feature – Manual Coin Borrowing – will be launched soon. This enhancement aims to provide you with greater flexibility and control over your trading experience.

Please take a moment to read the full announcement here:
https://announcements.bybit.com/article/bybit-uta-function-optimization-manual-coin-borrowing-will-be-launched-soon-blt5d858199bd12e849/

We highly value your feedback, so please share your thoughts with us after reviewing the details. Your input will help us continue improving the platform for everyone.

Thank you for your support,
The Bybit Team

[Announcement] Upcoming Update 2: New "cumFeeDetail" Field & Execution Enhancements

Dear Users,

Based on user feedback, we have adjusted the changes to minimize disruption and avoid removing any existing fields. Instead, we are introducing new fields to enhance your experience.
This update builds on our previous announcement (https://t.me/Bybit_API_Announcements/356)

REST API:
• GET /v5/order/realtime
• GET /v5/order/history
• GET /v5/execution/list
https://bybit-exchange.github.io/docs/v5/order/open-order
https://bybit-exchange.github.io/docs/v5/order/order-list
https://bybit-exchange.github.io/docs/v5/order/execution

WebSocket API:
• "order" topic
• "execution" topic
• "spread.order" topic
• "spread.execution" topic
https://bybit-exchange.github.io/docs/v5/websocket/private/order
https://bybit-exchange.github.io/docs/v5/websocket/private/execution
https://bybit-exchange.github.io/docs/v5/spread/websocket/private/order
https://bybit-exchange.github.io/docs/v5/spread/websocket/private/execution


What’s Changing:
• Orders (GET /v5/order/realtime, GET /v5/order/history):
A new field "cumFeeDetail" will be introduced to record fees and their corresponding fee currency. This will replace the existing fields "cumExecFee".
Note: "cumExecFee" will be deprecated.

• WebSocket ("order", "spread.order" topics):
A new field "cumFeeDetail" will be added to indicate trading fee details. This will replace the existing fields "cumExecFee" and "feeCurrency". "feeCurrency" fields will be deleted.
Note: "cumExecFee" will be deprecated. "feeCurrency" fields will not be deleted but will be deprecated.

• Executions (GET /v5/execution/list, WebSocket execution, spread.execution topics): A new field "feeCoin" will be added to indicate trading fee currency. "feeCurrency" and "execFeeV2" fields will be deleted.

• Executions (GET /v5/execution/list):
A new field "feeCoin" will be added to indicate trading fee currency."feeCurrency" and "execFeeV2" fields will be deleted.
Note: The original "feeCurrency", "execFee", and "execFeeV2" logic will remain unchanged.

• WebSocket ("execution" topic):
A new field "feeCurrency" will be added to indicate trading fee currency.


Timeline
• Testnet: Already live
• Mainnet (Gray Release): September 22, 2025
• Mainnet (Full Release): September 23, 2025


Action Required
Please review this update and adjust your integrations accordingly. We encourage you to test the changes on testnet and share any feedback with us.

Thank you for your continued support.
The Bybit Team

📣 Institutional Notice: Major Updates to Margin Calculation (Perps & Futures)

Bybit is updating the margin algorithm for Perpetual & Futures Contracts.

Already Live (since July 15, 2025):
Dual Calculation Display (new and existing algorithms side by side) on web & app

📅 New Algorithm Release:
18 Sept 2025 → Gradual rollout for Pro Clients

Full migration within 2 weeks

Key Changes:
1. Cross Margin: The new Initial Margin will be used as the cost to hold the position. Liquidation will be triggered based on the new Maintenance Margin Rate, calculated using the mark price
2. Isolated Margin: Liquidation will occur when the mark price hits the new liquidation price

Once new algorithms are live:
If your account's Maintenance Margin Rate has already reached 100% (for Cross Margin), or if the mark price hits the liquidation price (for Isolated Margin), your account or position will be liquidated immediately.

📌 Please review positions in advance.

Refer to annoucement for full details.

[Announcement] Offline of Old Crypto Loan OpenAPI Endpoints

Dear Users,

Please be informed that the old Crypto Loan OpenAPI endpoints will be taken offline on October 10, 2025. To avoid service interruption, we strongly encourage all users to migrate to the new Crypto Loan OpenAPI endpoints as soon as possible.

For new Crypto Loan OpenAPI endpoints, please refer to the documentation:
👉 https://bybit-exchange.github.io/docs/v5/new-crypto-loan/loan-coin

Thank you for your understanding and continued support.

📢 Bybit Important Notice: Standard Accounts to be Phased Out

⚠️ Key Dates
26 Oct - Please upgrade to UTA before this date
27 Oct - For accounts not meeting upgrade requirements:
• Negative balance + open Derivatives → all positions liquidated, account upgraded
• Open Derivatives in both Cross & Isolated Margin → Isolated positions converted to Cross, account upgraded
31 Oct - All remaining Standard Accounts will be liquidated and upgraded to UTA

✅ Why UTA?
• Trade Spot, Perp, Futures & Options in one account
• Higher capital efficiency
• Stable performance even in volatile markets

Please upgrade early to avoid forced liquidation.

Upgrade Now

Full Details | Learn More About UTA

Important Notice: Discontinuation of the Bybit Classic Account

With over 99.9% of our users already benefiting from the UTA, the Classic Account will be officially discontinued on Oct 31, 2025. Users who still hold a Classic Account must upgrade to the UTA 2.0 by Oct 31, 2025.

Account Definition (https://bybit-exchange.github.io/docs/v5/acct-mode):
1. Classic Account: settle Spot via Spot account, settle all Derivatives via Derivatives account. - Need to upgrade to UTA 2.0.
2. UTA 1.0: settle Spot and part Derivatives via UTA, but settle Inverse Derivatives via Inverse Derivatives account. - Need to upgrade to UTA 2.0.
3. UTA 2.0: settle Spot and all Derivatives via UTA. - No need to upgrade.

Key time points:
Oct 15, 2025:
1. Classic Account: Derivatives trading using Classic Account, will switch to Reduce-Only. New orders to increase positions will not be accepted. Users are only allowed to close their positions.
2. UTA 1.0: Inverse Derivatives trading under UTA 1.0, will switch to Reduce-Only.

Oct 31, 2025,
1. Classic Account: any open Derivatives positions/orders in Classic Account will be liquidated/canceled, and the accounts will be upgraded to UTA 2.0, all assets in Spot and Derivatives account will be transferred to UTA. Classic Accounts will no longer be available.
2. UTA 1.0: any open Inverse Derivatives positions/orders in UTA 1.0 will be liquidated/canceled, and the accounts will be upgraded to UTA 2.0, all assets in Inverse Derivatives account will be transferred to UTA.

We encourage all users to upgrade to UTA 2.0 as soon as possible to ensure a smooth transition.

Important Notice: Discontinuation of the Bybit Classic Account

Priority: P0

Since the Bybit Unified Trading Account (UTA) launched in July 2022, it has been continuously improved for better reliability and efficiency, even during times of market volatility. With over 99.9% of our users now on the UTA, the Classic Account will be officially discontinued on Oct 31, 2025. Users with a Classic Account must upgrade to the UTA 2.0 by this date.

Account definitions (https://bybit-exchange.github.io/docs/v5/acct-mode)
1. Classic Account: Settles Spot via the Spot Account and all Derivatives via the Derivatives Account. Upgrade to the UTA 2.0 is required.
2. UTA 1.0: Settles Spot and some Derivatives via the UTA, but uses the Inverse Derivatives Account for Inverse Derivatives. Upgrade to the UTA 2.0 is required.
3. UTA 2.0: Settles Spot and all Derivatives via the UTA. No upgrade required.

Key dates
Oct 15, 2025:
1. Classic Account: Derivatives trading using the Classic Account will be switched to "Reduce-Only." New orders to increase positions will not be accepted. Users will only be able to close their positions.
2. UTA 1.0: Inverse Derivatives trading will also be in "Reduce-Only" mode.

Nov 3, 2025:
1. Classic Account: Any open Derivatives positions/orders will be closed or canceled. Accounts will be upgraded to the latest UTA, and all assets in Spot and Derivatives Accounts will be transferred. Bybit Classic Accounts will no longer be available.
2. UTA 1.0: Any open Inverse Derivatives positions/orders will be closed or canceled. Accounts will be upgraded to the UTA 2.0, with assets transferred.

We encourage all users to upgrade to the UTA 2.0 as soon as possible to ensure a smooth transition.

Please reach out if you need any assistance with the upgrade.

Important notice: Discontinuation of the Bybit Classic Account

Since the Bybit Unified Trading Account (UTA) launched in July 2022, it has been continuously improved for better reliability and efficiency, even during times of market volatility. With over 99.9% of our users now on the UTA, the Classic Account will be officially discontinued on Oct 31, 2025. Users with a Classic Account must upgrade to the latest version of the UTA by this date.

Please Pay attention to the key date Nov 3, 2025
Nov 3, 2025:

1. Classic Account: Any open Derivatives positions/orders will be closed or canceled. Accounts will be upgraded to the latest UTA, and all assets in Spot and Derivatives Accounts will be transferred. Bybit Classic Accounts will no longer be available.

2. Older version of UTA: Any open Inverse Derivatives positions/orders will be closed or canceled. Accounts will be upgraded to the latest UTA, with assets transferred.

Please refer to this annoucement:
https://announcements.bybit.com/en/article/important-notice-discontinuation-of-the-bybit-classic-account-blt685489f0037aa789/

Bybit to update Portfolio Margin Mode risk parameters

Bybit will update its risk parameters for Portfolio Margin Mode to enhance capital efficiency and strengthen risk management. The changes, which affect the underlying price, implied volatility (IV) stress test factors, initial margin factor, and contingency factors for XRP, MNT and DOGE risk units, will take effect on Oct 13, 2025, 8AM UTC. These adjustments are designed to align Bybit’s risk management framework with evolving market dynamics.

Please refer to the annoucement below:
https://announcements.bybit.com/article/bybit-to-update-portfolio-margin-mode-risk-parameters-bltb5488b589e14901c/

Changes to maximum order size for limit and market orders

Starting Oct 16, 2025, Spot and Margin trading will adopt new maximum order size rules to improve flexibility and efficiency:

• Removed: maximum order value limit
• Updated: limit and market orders now have independent maximum sizes
• Post-only/RPI orders: up to 5× the limit order size

Please note new API error codes 170381 and 170382 will replace 170135, and order limit fields are updated to maxLimitOrderQty and maxMarketOrderQty in GET /v5/market/instruments-info.
https://bybit-exchange.github.io/docs/v5/market/instrument

Please refer to the annoucement below:
https://announcements.bybit.com/article/changes-to-maximum-order-size-for-limit-and-market-orders-blt6ac479804a794c46/

Important Notice: Withdrawal Limit Increment
Priority: P1

Bybit is updating daily withdrawal limits across VIP and PRO tiers to further enhance flexibility and remain competitive in supporting cross-exchange and spread trading strategies.

📅 Effective Date: 24 October 2025

New Daily Withdrawal Limits (USDT)
PRO1 / VIP6: 12M → 26M
PRO2 / VIP7: 15M → 30M
PRO3 / VIP8: 20M → 35M
PRO4 / VIP8: 25M → 40M
PRO5 / VIP8: 30M → 50M
PRO6: 30M → 60M

KYC 1, KYC 2 and KYB limits remain unchanged.

The official announcement will be released closer to the launch date.

Important Notice: Introducing Bybit RFQ

We’re pleased to launch Bybit's OTC Request-for-Quotation (RFQ), a next-generation trading tool for institutional and VIP clients to execute large, private, multi-leg trades across Spot, Perpetuals, Expiries, and Options with minimal slippage.

Key Benefits
• Multi-asset coverage – Spot, Perp, Expiry & Options
• Smarter execution – Execute multi-leg strategies in one RFQ with up to 50% lower fees; MM-to-MM trades enjoy deeper discounts
• Capital efficiency – Access Bybit’s debt pool for pre-funding or apply for institutional loans
• Privacy & security – Point-to-point quoting keeps your trade intent confidential
• Large block trades – Execute high-volume trades off-book with no slippage or leakage

Get Started
• Takers - Trade via Bybit front-end UI or API
• Makers - Available via API integration & UID registration with Bybit or your RM
• Process - Testnet integration → Mainnet activation

Please refer to the official announcement for full details.

🔥 Sign up now!

Why RFQ?
1️⃣ Off-book execution
2️⃣ Privacy and security
3️⃣ Large block trades

Changelog 2025-10-09
REST API

- Place Order [UPDATE]
- The value range of slippageTolerance has been adjusted, where: TickSize has changed from [5, 2000] to [1, 10000] and Percent has changed from [0.05, 1] to [0.01%, 10%]
- Get Instruments Info [UPDATE]
- Add symbolType request parameter to filter instrument records,only for linear,inverse
- category=spot adds a new response fields maxLimitOrderQty, maxMarketOrderQty, will becomes effective on Oct 16th, refer to the announcement to get more details

[Announcement] Full Release of Manual Coin Borrowing API Endpoints

Dear Traders,

We are pleased to announce that the Manual Coin Borrowing API endpoints will be fully released on October 23, 2025.

For more details, please refer to the API changelog:
👉 https://bybit-exchange.github.io/docs/changelog/v5#2025-10-23

Thank you for your continued support,
The Bybit Team

Important Notice: Discontinuation of the Bybit Classic Account

Since the Bybit Unified Trading Account (UTA) launched in July 2022, it has been continuously improved for better reliability and efficiency, even during times of market volatility. With over 99.9% of our users now on the UTA, the Classic Account will be officially discontinued on Oct 31, 2025. Users with a Classic Account must upgrade to the UTA 2.0 by this date.

Account definitions (https://bybit-exchange.github.io/docs/v5/acct-mode)
1. Classic Account: Settles Spot via the Spot Account and all Derivatives via the Derivatives Account. Upgrade to the UTA 2.0 is required.
2. UTA 1.0: Settles Spot and some Derivatives via the UTA, but uses the Inverse Derivatives Account for Inverse Derivatives. Upgrade to the UTA 2.0 is required.
3. UTA 2.0: Settles Spot and all Derivatives via the UTA. No upgrade required.

Key Points — Effective Nov 3, 2025
• Classic Account: Any open Derivatives positions/orders will be closed or canceled. Accounts will be upgraded to the latest UTA, and all assets in Spot and Derivatives Accounts will be transferred. Bybit Classic Accounts will no longer be available.
• UTA 1.0: Any open Inverse Derivatives positions/orders will be closed or canceled. Accounts will be upgraded to UTA 2.0, with assets transferred.

We encourage all users to upgrade to UTA 2.0 as soon as possible to ensure a smooth transition.

Please reach out if you need any assistance with the upgrade.

[Announcement] Release of the API endpoint for querying withdrawal addresses in the address book

Dear Traders,

We are pleased to announce that we have launched a new endpoint to query the withdrawal addresses in the address book. this function will be released on October 21, 2025.

For more details, please refer to the API changelog:
👉 https://bybit-exchange.github.io/docs/v5/asset/withdraw/withdraw-address

Thank you for your continued support,
The Bybit Team

Optimization to /v5/order/cancel-all Endpoint (https://bybit-exchange.github.io/docs/v5/order/cancel-all)

Dear Traders,

To address high latency issues, we will be optimizing the /v5/order/cancel-all endpoint.

Previously, if multiple open orders existed, the cancel-all endpoint would send individual cancel requests for each order to the matching engine. With this update, cancellations will be processed in batches, with up to 200 orders per batch, improving overall efficiency and performance.

For WebSocket order topic: (https://bybit-exchange.github.io/docs/v5/websocket/private/order)
Before:
WebSocket order messages were pushed one by one per order.

After:
A single WebSocket order message may now contain multiple order updates.

Release Schedule:
Testnet: October 28, 2025
Mainnet: November 4, 2025

Thank you for your continued support and understanding.
The Bybit Team

Update to V5 WebSocket Public Connection ID Format

Dear Traders,

To ensure consistency across all connection types, Bybit will update the V5 Public WebSocket connection ID (connId) format to align with the Private channel.

Details of the Change:
• New Format: "machine_name_encoded"-"base36_encoded_incremental_connection_sequence_number"
Example: cejreassvfrsfvb9v1a0-2m

• Previous Format: UUID

Rollout Plan

Product Type              Nov 6           Nov 11          Nov 13          Nov 18
---------------------------------------------------------------------------------
Options & Futures Spread  Grey Release 1  Grey Release 2  Full Rollout    —
Spot                      Grey Release 1  Grey Release 2  Full Rollout    —
Futures                   —               Grey Release 1  Grey Release 2  Full Rollout

• Both old UUID and new encoded connId formats will be supported during this period until full migration is complete.

Thank you for your continued support and understanding.
The Bybit Team

Title: Update to Spot Market Tickers Data Push Frequency

Dear Traders,

To further enhance system stability during periods of high market volatility, Bybit will be optimizing the Spot market tickers data push frequency.
To improve overall system reliability, the Spot WebSocket tickers data push frequency will be adjusted from Real-time to 50 milliseconds.
Please refer to : https://bybit-exchange.github.io/docs/v5/websocket/public/ticker

Testnet Release: October 31, 2025
Mainnet Release: November 4, 2025

Thank you for your continued support and understanding
Bybit Team

New Endpoint: /v5/account/no-convert-repay

Dear Traders,

1. Bybit will introduce a new endpoint – POST /v5/account/no-convert-repay – which allows users to repay only positive assets (ie, where walletBalance > 0).

This new endpoint is similar to the existing POST /v5/account/repay (https://bybit-exchange.github.io/docs/v5/account/repay) endpoint, but only repays assets in the same currency, avoiding asset conversion or repaying using assets which already have a negative balance.

Request Parameters

Parameter  Required  Type    Description
coin       false     string  Coin name (uppercase only)
amount     false     string  Repay amount. If the coin is not specified, the amount must also be omitted.

Release Schedule
Testnet: October 30, 2025
Mainnet: November 3, 2025

2. These two APIs are changing from being asynchronous to returning synchronously.
POST /v5/account/repay
POST /v5/account/no-convert-repay

We will add "SU" and "FA" enums to the response parameters to reflect this.
Parameter Type Comments
result array Object
> resultStatus string
P: Processing
SU: Success
FA: Failed

Thank you for your continued support
Bybit team