Ethereum developers are keeping the Glamsterdam upgrade's Hoodi testnet fork on hold until security questions around gas-accounting changes are resolved. Ethereum Foundation developer Marius van der Wijden said in a November 6 developer update that no new Hoodi date has been announced.
The delay follows an October 13 report from smart contract auditor ChainSecurity, which found that two proposals, EIP-8037 and EIP-8038, could break contracts that assume certain operations cost a fixed amount of gas. EIP-8037 changes how the protocol accounts for state creation, including a separate reservoir for eligible operations, while EIP-8038 reprices operations that access existing state.
According to the Ethereum Foundation's November 6 update, eight smart contract assumptions remain under review, with input from ChainSecurity, Dedaub and internal reviewers. The concern centers on how a failed external call can leave the caller enough gas to finish a failure handler, potentially producing a different final state than under the earlier gas schedule. ChainSecurity also examined checks built on gasleft(), fixed allowances, separate state-gas reserves, and EIP-7702 delegation transactions.
The timeline shows Sepolia activation on October 6, a planned Hoodi fork on October 26, a postponement on October 23, and the November 6 update keeping the hold in place. Work on the next upgrade, Hegota, continues in parallel. At 12:47 UTC on November 9, ETH traded at $2,123, down 5.0% over 24 hours and 7.5% over seven days, with a market cap of $259.48 billion and 24-hour volume of $9.80 billion. The finding matters because it affects already deployed immutable contracts, and wallets, relayers and indexers may also need to adjust.
