Wu has learned that Immutable has announced plans to migrate its Immutable Chain from a customized version of Geth to an Ethereum Rollup based on the OP Stack in mid-2027. The original chain state and chain ID will be retained, and accounts, balances, contracts, and authorizations will be automatically carried over, requiring minimal action from most users and developers. After the upgrade, block time is expected to be reduced from 2 seconds to 1 second; transaction costs will increase slightly, and native withdrawal time will be extended to approximately 7 days. Block generation is expected to be suspended for several hours during the migration, and the existing testnet will cease use for game testing by the end of 2026. https://(wublock123.com)/news/immutable-chain-migrate-to-op-stack-in-2027-native-withdrawals-7-days-71463