Ethereum's Glamsterdam Upgrade Aims to Enhance MEV Fairness and Efficiency
Ethereum's upcoming Glamsterdam upgrade, targeted for 2026, comprises two simultaneous improvements on the execution and consensus layers known respectively as Amsterdam and Gloas.
A central feature of this upgrade is Proposer-Builder Separation (ePBS, EIP-7732), which aims to separate the roles of block builders from proposers. This separation is designed to prevent any single actor from manipulating transaction inclusion or ordering, thereby reducing Miner Extractable Value (MEV) exploitation.
Another significant improvement is the introduction of Block-level Access Lists (EIP-7928). This feature allows a block to declare in advance which accounts and data it will access, enabling the preloading of data to speed up execution and smooth gas costs.
Both of these features are Ethereum Improvement Proposals (EIPs), and the full scope of Glamsterdam is not yet finalized, with additional EIPs expected to be selected in the coming weeks.
While there is no fixed date, developers have indicated that the upgrade will likely occur in 2026. The Glamsterdam plan follows the recent Fusaka upgrade, which cut node costs and signals an ongoing sequence of core Ethereum upgrades.
