Key facts
- Ethereum's Glamsterdam upgrade is scheduled to activate on the Sepolia testnet on Oct. 6.
- Glamsterdam will introduce proposer-builder separation, moving the handoff between block builders and validators into the protocol.
- The upgrade will also implement block-level access lists to record accounts and storage locations used per block.
- Gas pricing will be altered to better reflect the cost of creating and accessing data on Ethereum.
- Contracts relying on fixed gas stipends or hardcoded gas limits may need adjustments.
- Mainnet and Hoodi testnet dates for Glamsterdam have not yet been set.
Ethereum developers have slated the network's upcoming major upgrade, dubbed Glamsterdam, for activation on the Sepolia testnet on October 6. The Ethereum Foundation has instructed Sepolia node operators to update both their execution-layer and consensus-layer clients in preparation for the event.
Glamsterdam is set to introduce several key changes, including enshrined proposer-builder separation. This feature aims to integrate the handoff between specialized block builders and validators directly into Ethereum's protocol, thereby reducing the dependency on external middleware solutions. Additionally, the upgrade will implement block-level access lists, which will meticulously record the accounts and storage locations utilized within each block. Gas pricing mechanisms are also slated for modification to more accurately reflect the costs associated with creating and accessing data on the Ethereum network. The foundation cautioned that contracts dependent on fixed gas stipends or hardcoded gas limits might require necessary modifications.