Ethereum Sets October 6 Launch for Glamsterdam Upgrade on Sepolia Testnet
The Glamsterdam upgrade introduces proposer-builder separation, access lists at the block level, and revised gas pricing mechanisms, though no mainnet deployment date has been announced.
The development team behind Ethereum has confirmed that Glamsterdam, the blockchain's upcoming significant upgrade, is set to go live on the Sepolia testnet on Oct. 6.
According to an announcement made by the Ethereum Foundation on Monday, operators running Sepolia nodes will need to upgrade their consensus-layer and execution-layer clients prior to the activation date.
Among the key modifications coming with Glamsterdam is the implementation of enshrined proposer-builder separation. This feature will integrate the transition between dedicated block builders and validators directly into Ethereum's core protocol, minimizing dependence on external middleware solutions.
Another addition in the Glamsterdam upgrade is the introduction of access lists at the block level, which will document the storage locations and accounts utilized throughout each individual block.
Additionally, the upgrade will implement modifications to gas pricing mechanisms to more accurately represent the expenses associated with creating and accessing information on Ethereum. According to the foundation, smart contracts that depend on hardcoded gas limits or fixed gas stipends may need to be modified.
No specific dates have been established by developers for the upgrade's deployment on Hoodi, the testnet focused on validators, or on the mainnet.
The development team is aiming for 2027 as the target year for Hegotá, which is anticipated to be the subsequent upgrade following Glamsterdam.
On Sunday, Vitalik Buterin, co-founder of Ethereum, stated that Hegotá might represent the network's final "normal" fork before the development focus transitions toward quantum-safe cryptography, optimized consensus mechanisms, automated formal verification, and recursive STARKs.