Glamsterdam fork on Hoodi cancelled: how to check whether your Ethereum staking is affected

The test fork that Ethereum developers had been working towards since early October is not happening. On October 22, the core developers cancelled the activation of the Glamsterdam upgrade on the Hoodi testnet planned for Monday, October 26. The reason is not a bug in the software but a security finding from the audit firm ChainSecurity concerning two improvement proposals that form part of the upgrade. No replacement date has been set, either for Hoodi or for the mainnet. If you hold Ether, nothing changes in day-to-day terms for now. Anyone running a node, operating a validator or testing applications on Hoodi, by contrast, has to adjust the calendar and check their software versions. This article sets out what exactly was cancelled, why the auditors raised the alarm and which date is realistically on the table now. Hoodi fork cancelled: October 26 is off Glamsterdam was due to take effect on Hoodi on October 26 at 17:42:48 UTC, at Hoodi epoch 132,352. That activation has been removed from the revised configuration. Cancelled along with it are the activation of the Amsterdam execution layer and that of the Gloas consensus layer. The planned increase of the Hoodi gas limit to 200 million units has also been withdrawn. The cancellation affects future configurations only. Whatever has already been recorded in blocks on Hoodi stays as it is; nothing is being rolled back. Equally untouched is the Glamsterdam fork on the Sepolia testnet, which took place on October 6 and has been running since. What a testnet fork actually achieves A testnet is a full copy of the Ethereum blockchain that works with worthless tokens. Hoodi has served since spring 2026 as the last stage before the mainnet: this is where client teams and staking providers check under realistic conditions whether their software survives a fork. If such a test falls through, everything that follows necessarily shifts. The mainnet date hangs on the testnet date, not the other way round. EIP-8037 changes how new storage is charged for gas Gas is the unit of account with which Ethereum measures and prices the effort of a transaction. EIP-8037 is titled «State Creation Gas Cost Increase» and makes creating new data on the blockchain more expensive. To that end it introduces a price per byte, which it puts at 1,530 gas, and accounts for the cost of creating storage separately from the rest of execution. Transaction and block limits therefore apply per dimension rather than to a shared pool. According to the official EIP page, the proposal is at «Last Call» status with a deadline of November 1, 2026. It depends on EIP-8038, which redefines the cost values for accesses to existing storage. Those values are not yet final according to the same page.