[//]:content-type-MARKDOWN-DONOT-DELETE Gate.io is going to upgrade and optimize the BTC and USDT margin Perps trading engine from 2 PM - 2:10 PM UTC on 16 Feb, 2023. The upgrade will take about 10 minutes and partial service of BTC and USDT margin perpetual contracts trading will be unavailable during the process. There might be trading interruption (about 1 second) and query interruption (about 1 second) on all perpetual contracts during the process. If you are an affected trader and API user, please adjust your strategies beforehand. Affected services: All BTC and USDT margin perpetual contracts Major changes: 1) Add more fields to the ADL log 2) Add more interface to the trading engine in prepration for support for multiple settlement currencies This upgrade will bring you improved user experience when trading with perpetual contracts. Thank you for your understanding and continued support. Gateway to Crypto Trade over 1,400 cryptocurrencies safely, quickly and easily on Gate.io [Sign up](https://www.gate.io/signup "Sign up") to enter the crypto gateway and get 40% commission from [referrals](https://www.gate.io/referral "referrals") [Download iOS/Android App](https://www.gate.io/mobileapp?ch=ann27560 "Download iOS/Android App") right now. Reach out to us! Twitter: https://twitter.com/gate_io GateVIP Twitter: https://twitter.com/GateioVIP Telegram: https://t.me/gate_io API Telegram: https://t.me/gateioapi Instagram: https://www.instagram.com/gateioglobal Medium: https://gateio.medium.com/ Podcast: https://gateio.buzzsprout.com/?ch=buzzs Gate.io Team Feb 16, 2023