Ethereum Glamsterdam Upgrade Goes Live on Sepolia Testnet

Ethereum's Glamsterdam upgrade has gone live on the Sepolia testnet, marking one of the final major rehearsals before its eventual mainnet activation, according to an announcement by community contributor Pooja Ranjan.

Scaling and Efficiency Focus

The upgrade aims to advance Ethereum's layer-1 scaling roadmap. Key features include enshrined proposer-builder separation (ePBS) via EIP-7732 and enforced block-level access lists (BALs) via EIP-7928. These changes alter how blocks are produced and validated to support greater throughput on the mainnet without raising the gas limit.

Enshrined proposer-builder separation introduces a division between block proposers and builders on the consensus protocol while separating consensus validation from execution validation. Meanwhile, block-level access lists record accounts and storage locations accessed during a block, enabling clients to read state and validate transactions in parallel.

Next Steps for Deployment

Following the Sepolia deployment, developers will determine Glamsterdam's activation date on the Hoodi testnet before scheduling the final mainnet launch. A blog post from the Ethereum Foundation noted a 200 million gas limit floor established for Glamsterdam, providing a speed boost from the current limit of around 60 million.

Once Glamsterdam concludes, developers will begin implementing Hegotá as the next major upgrade, with scoping reviews already underway for privacy capabilities and other proposals.

Key facts

• Ethereum's Glamsterdam upgrade went live on the Sepolia testnet at 1:53 pm UTC on Tuesday.
• The upgrade features enshrined proposer-builder separation (EIP-7732) and block-level access lists (EIP-7928).
• The Ethereum Foundation established a 200 million gas limit floor for the upgrade.
• Developers will schedule the next activation on the Hoodi testnet before the mainnet launch.