According to the Tezos team, the upgrade“Hangzhou” will be activated at the end of cycle 427, on block 1,916,929, estimated at 16:20 UTC on December 3rd 2021.
Gate.io supports this upgrade and will suspend XTZ deposits and withdrawals during the process. Deposits and withdrawals will be resumed as soon as possible after this upgrade. Trading of XTZ will not be affected.
Thank you for your understanding and continued support.


Learn more:
https://news.tezoscommons.org/tezos-newest-upgrade-proposal-hangzhou-announced-b1ef1fd23338