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Ethereum pushes Glamsterdam upgrade to late 2026, targets 2027 Hegotá

Developers are already selecting what to include for Hegotá, with 66 proposals being assessed ahead of a finalized PFI list expected around Aug. 27.

Reported · Written up by our desk · Ethereum

Ethereum developers are restarting timelines for the network’s next major upgrade, now targeting the Glamsterdam upgrade for the fourth quarter of 2026, according to CryptoSlate. The move marks a shift from earlier expectations that Glamsterdam would land in the first half of 2026, with a later Hegotá follow-on in the year.

To support the revised schedule, developers have opened a new public testnet for Glamsterdam called Platåberget. The testnet is designed to run for several months and move testing across longer-lived environments on Sepolia and Hoodi testnets before mainnet activation.

CryptoSlate reports Glamsterdam includes breaking changes that will require updates for tools that assume a hardcoded maximum gas limit, including some wallets, indexers, and gas estimators. Ethereum developers are also shaping what comes next for Hegotá, including a current review of 66 proposals.

On Aug. 16, Ethereum researcher Toni Wahrstätter said network developers are assessing 66 proposals for Hegotá, with only a fraction expected to get implementation work and supporting devnets and testnets for a realistic 2027 release. The All Core Devs agenda gave developers about two weeks to narrow the field, with the Hegotá proposed-for-inclusion list expected to be finalized around Aug. 27, and client teams due to submit their preference lists by Sept. 10.

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