Dear KuCoin Users,
The KuCoin Sandbox Environment will undergo maintenance for a system upgrade at 14:00 on March 12, 2023 (UTC). The duration of the maintenance would be 10 mins. During the maintenance, the web log-in will be disabled, and the API could not be used.
We apologise for the inconvenience! Thank you for supporting KuCoin!
https://www.kucoin.com/news/sandbox-environment-upgrade-announcement-2303-12

KuCoin Futures Has Launched USDT Margined USDC Contract
https://www.kucoin.com/news/en-kucoin-futures-launched-usdt-margined-usdc-contract

KuCoin Futures Has Launched USDC Margined ETH Contract
https://www.kucoin.com/news/en-kucoin-futures-launched-usdc-margined-eth-contract

👏👏important update👏👏
The KuCoin spot API high-frequency account is now officially launched. This account is an account type that is parallel to main, trade, margin, and future. The type is, trade_hf (shown as Pro Account at WEB). Compared with trade accounts, trading spot with trade_hf account has lower latency and higher frequency limit.

https://www.kucoin.com/news/zh-the-kucoin-spot-api-high-frequency-account-is-now-officially-launched

Announcement of the Adjustment Tick Size for ROAR/USDT Trading Pair

https://www.kucoin.com/news/en-announcement-of-the-adjustment-tick-size-for-roar-usdt-trading-pair

The Kucoin spot API high-frequency account has been upgraded without downtime, and the specific optimization is as follows:
1、Add Modify order interface，POST /api/v1/hf/orders/alter
2、Add Sync cancel orders by orderId interface, DELETE /api/v1/hf/orders/sync/{orderId}
3、Add Sync cancel orders by clientOid interface, DELETE /api/v1/hf/orders/sync/client-order/{clientOid}
4、Add Sync place multiple hf orders interface, POST /api/v1/hf/orders/multi/sync
5、Add Obtain List of Active HF Orders interface, GET /api/v1/hf/orders/active/symbols
6、Modify POST /api/v1/hf/orders/multi interface，Input parameters: support batch orders for different trading pairs; output parameters: the return value has been optimized, only orderId and order results are returned

https://docs.kucoin.com/spot-hf/#update-preview

The Kucoin future API has been upgraded without downtime, and the specific optimization is as follows:
1、Modify GET /api/v1/transfer-list interface, Add request parameter: queryStatus、queryStatus、pageSize
2、Modify GET /api/v1/orders interface, Add request parameter: currentPage、pageSize
3、Modify GET /api/v1/stopOrders interface, Add request parameter: currentPage、pageSize
4、Modify GET /api/v1/fills interface, Add request parameter：currentPage、pageSize, Add response field：openFeePay、closeFeePay
5、Modify GET /api/v1/recentFills interface, Add request parameter：currentPage、pageSize, Add response field：openFeePay、closeFeePay
6、Modify GET /api/v1/position interface, Add response field：userId
7、Modify GET /api/v1/positions interface, Add response field：userId
8、Modify POST /api/v1/position/margin/deposit-margin interface, Add response field：userId
9、Modify GET /api/v1/premium/query interface, Remove response field：predictedValue
10、Modify GET /api/v1/recentDoneOrders interface, Add request parameter：symbol
11、Modify GET /api/v1/positions interface, Add request parameter：currency
12、Deprecate GET /api/v1/deposit-address interface, Please refer to the spot interface
13、Deprecate GET /api/v1/deposit-list interface, Please refer to the spot interface
14、Deprecate GET /api/v1/withdrawals/quotas interface, Please refer to the spot interface
15、Deprecate GET /api/v1/withdrawal-list interface, Please refer to the spot interface
16、Deprecate GET /api/v1/withdrawals interface, Please refer to the spot interface
17、Deprecate GET /api/v1/transfer-out interface
18、Deprecate DELETE /api/v1/cancel/transfer-out interface

https://docs.kucoin.com/futures/#upcoming-changes

KuCoin Futures Will Increase the Max Leverage and Risk Limit of BTC Perpetual/USDT, ETH Perpetual/USDT Contracts on April 11, 2023
https://www.kucoin.com/news/en-kucoin-futures-will-increase-the-leverage-and-risk-limit-of-btc-eth-usdt-contracts-on-april-11-2023

The Kucoin spot API has been upgraded without downtime, and the specific optimization is as follows:
1、[New] For creating sub-accounts, please use the new endpoint (POST /api/v2/sub/user/created) to replace the old endpoint (POST /api/v1/sub/user).
2、[New] For obtaining account summary information, please use the new endpoint (GET /api/v2/user-info) to replace the old endpoint (GET /api/v1/user-info).
https://docs.kucoin.com/#upcoming-changes
https://www.kucoin.com/news/kucoin-spot-api-upgrade-completion-announcement-0413

KuCoin will remove Poloniex from Margin Spot Index at 08:00:00 on April 27, 2023 (UTC), the details are as follows:
Removing: Poloniex
Trading pairs involve: BTC-USDT, DASH-BTC, DOGE-BTC, EOS-BTC, ETC-BTC, ETH-BTC, LTC-BTC, SXP-USDT, TRX-BTC, WIN-USDT, XRP-BTC, ZEC- BTC.
https://www.kucoin.com/news/notice-of-margin-spot-index-0414

Announcement of the Adjustment Tick Size for HIDOODLES/USDT Trading Pair

https://www.kucoin.com/news/en-announcement-of-the-adjustment-tick-size-for-hidoodles-usdt-trading-pair

The Kucoin spot high-frequency API has been upgraded without downtime, and the specific optimization is as follows:
1. Add POST /api/v1/hf/orders/dead-cancel-all interface
2. Add GET /api/v1/hf/orders/dead-cancel-all/query interface
https://docs.kucoin.com/spot-hf/#update-preview
https://www.kucoin.com/news/kucoin-spot-api-upgrade-completion-announcement-0424

Win 2 BTC + 500K USDT in 100% rewards by join API trading.

https://www.kucoin.com/news/en-kucoin-api-trading-carnival-042823

Announcement of the Adjustment Tick Size for VEMP/USDC, STARLY/USDT and ARNM/USDT Trading Pairs

https://www.kucoin.com/news/announcement-of-the-adjustment-tick-size-for-vemp-usdc-trading-pair

Announcement of the Adjustment Tick Size for Spot Trading Pairs
https://www.kucoin.com/news/en-announcement-of-the-adjustment-tick-size-for-spot-trading-pairs-20230613

KuCoin Margin Spot Index Components Change Notification

KuCoin Margin will remove some components from Margin Spot Index at 08:00:00 on June 14, 2023 (UTC)

To API users, if you have subscribed to the price index for any perspective, please ensure that you have canceled before its removal. If not, the removal has no other impact on your transactions.

https://www.kucoin.com/news/notice-of-margin-spot-index-0602

Announcement of the Adjustment Tick Size for LOCG/USDT Trading Pair

https://www.kucoin.com/announcement/en-announcement-of-the-adjustment-tick-size-for-locg-usdt-trading-pair

KuCoin will temporarily close the Margin services of ANC.

Meanwhile, to protect users’ assets, we strongly recommend that users cancel open orders, close positions, repay loans and transfer the tokens above from Cross Margin account and Isolated Margin account to other accounts in advance.

https://www.kucoin.com/announcement/margin-notice-230620

Announcement of the Adjustment Tick Size for Spot Trading Pairs

https://www.kucoin.com/announcement/en-announcement-of-the-adjustment-tick-size-for-spot-trading-pairs-20230626

Announcement Regarding the Merger of Leveraged Tokens AAVE3L and UNI3L

https://www.kucoin.com/announcement/etf-merge-notice-230621