According to official news, Immutable announced that Immutable zkEVM has completed the Shanghai hard fork upgrade, and there will be no downtime during the upgrade. Immutable zkEVM is powered by Polygon and will continue to be supported by Ethereum-grade security and best-in-class infrastructure so that all developers can thrive. It is reported that Immutabl currently supports Solidity 0.8.20 and Open Zeppelin v5.0, and RPC node operators can now deploy the latest immutable/go-ethereum Docker image to keep in sync with the network.