GoKawiilEthereum's Glamsterdam Upgrade to Enshrine Proposer-Builder Separation, Testing on Hoodi Oct 26
The Ethereum Foundation said the Glamsterdam upgrade will activate on the Hoodi testnet at epoch 132,352 on October 26, 2026, bringing EIP-7732 into the protocol's consensus rules. That change writes proposer-builder separation directly into Ethereum, replacing today's out-of-protocol arrangement with a payload timeliness committee that verifies builders delivered blocks and blob data on schedule. The upgrade bundles 19 EIPs total, including EIP-7928 for enforced block-level access lists plus several smaller technical improvements.