Ethereum schedules Glamsterdam upgrade on Sepolia for Oct. 6
Glamsterdam will bring proposer-builder separation, block-level access lists and new gas pricing, while its mainnet date remains unset.
Ethereum developers have set October 6 as the date for the next major upgrade called Glamsterdam, which will take place on the Sepolia testnet. This upgrade will introduce several key changes to the Ethereum network. One of the most significant is the implementation of proposer-builder separation, which will move the handoff between specialized block builders and validators into Ethereum's protocol itself. This move aims to reduce reliance on external middleware.
Glamsterdam will also bring block-level access lists, which will record the accounts and storage locations used during each block. Additionally, the upgrade will alter gas pricing to better reflect the actual cost of creating and accessing data on Ethereum. However, contracts that rely on fixed gas stipends or hardcoded gas limits may need to be updated to accommodate these changes.
At present, there are no set dates for the rollout of Glamsterdam on the Hoodi testnet, which is focused on validators, or on the mainnet. Ethereum co-founder Vitalik Buterin has hinted that the next upgrade after Glamsterdam, known as Hegotá, could be the network's last "normal" fork. He expects Hegotá to occur around 2027, leading to a shift in development towards recursive STARKs, automated formal verification, optimized consensus, and quantum-safe cryptography.
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