According to the Acala team, Acala & Karura 2.3.1 is going to take place at height #391300 on Acala, height #1505400 on Karura, estimated on 2022-02-12 at 05:00:00 UTC. Gate.io supports this upgrade for users. If your Acala（ACA）or Karura （KAR） tokens are on Gate.io, you dont have to do anything in particular.

　　Gate.io will suspend ACA and KAR deposits and withdrawals during the upgrade. ACA and KAR trading will not be affected. Deposits and withdrawals will be resumed as soon as possible after this upgrade.

　　This is a full release that upgrades Substrate / Cumulus / Polkadot version to v0.9.16 to be compatible with the new release of the relaychain.

　　Deposit ACA at https://www.gate.io/myaccount/deposit/ACA

　　ACA/USDT Market: https://www.gate.io/trade/ACA_USDT

　　Deposit KAR at https://www.gate.io/myaccount/deposit/KAR

　　KAR/USDT Market: https://www.gate.io/trade/KAR_USDT

　　Learn more:

　　https://github.com/AcalaNetwork/Acala/releases/tag/2.3.1