Gate.io is going to upgrade and optimize the spot trading engine from 14:00 – 14:15 UTC on 24 Dec. The upgrading will take about 15 minutes and partial service of spot trading will be unavailable during the process. We expect there will be trading interruption (about 1 second) and query interruption (about 1 second) on all spot markets. If you are affected traders and API users, please adjust your strategies beforehand. Affected services include: All spot trading markets After upgrade, FOK orders will be added to spot markets.Thank you for your understanding and continued support.