Ethereum Delays Glamsterdam Testnet Over Contract Risks

Published: 2026-10-23 05:45:56 |

Ethereum developers have postponed the Glamsterdam hard fork on the Hoodi testnet, canceling its planned October 26 activation. The delay follows concerns that proposed gas-accounting changes in EIP-8037 and EIP-8038 could affect how existing smart contracts handle failed operations and retries. ChainSecurity identified 13 potentially affected real-world contracts and is coordinating responsible disclosure with the projects involved. In some cases, a failed operation could still be recorded, potentially preventing users from retrying it. The postponement also cancels Hoodi’s planned gas limit increase to 200 million. It does not erase the testnet’s transaction history, and the earlier Glamsterdam activation on Sepolia remains in place. Hoodi node and validator operators should update their clients to remove the canceled activation; the Ethereum Foundation says mainnet users and ETH holders need take no action. Developers have not announced a new Hoodi date or confirmed a mainnet schedule. Early December had been discussed tentatively, but the delay makes the Glamsterdam timeline less certain while contract compatibility is reviewed.

Neutral

The delay is limited to Hoodi testnet preparation, so it does not directly change Ethereum mainnet operations or require action from ETH holders. That makes a sustained price effect less likely, and the postponement may be seen as a prudent security measure rather than evidence of a confirmed mainnet failure. In the short term, uncertainty about the upgrade timeline and the disclosed contract risks could prompt caution among traders and add modest volatility around Ethereum-related news. The canceled testnet gas-limit increase may also draw attention, but it is not itself a change to mainnet capacity. Over the longer term, resolving compatibility issues before deployment could support confidence in Ethereum’s security and development process. Conversely, a prolonged delay or evidence of broader contract exposure could weigh on sentiment. Traders may therefore watch for a replacement Hoodi date, updates on the affected contracts, and confirmation of the mainnet schedule. Based on the information available, the news is primarily a testnet and upgrade-timeline development, with no clear directional price catalyst for ETH.