Ethereum developers are outlining plans for the network’s next major protocol upgrade, known as Glamsterdam, with a provisional rollout targeted for the first half of 2026.
The upgrade follows the Fusaka hard fork completed in December 2025 and represents the next phase in Ethereum’s long-term technical roadmap.
Developers describe Glamsterdam as a coordinated upgrade combining execution-layer and consensus-layer changes rather than a narrow technical patch.
The name Glamsterdam blends “Amsterdam,” which refers to execution-layer updates, with “Gloas,” a working label for consensus-layer development.
At the centre of the proposal is a renewed focus on addressing Maximal Extractable Value, or MEV, within the Ethereum ecosystem.
MEV allows block producers or builders to reorder or filter transactions for profit, often increasing costs and unpredictability for users.
While MEV has grown into a multibillion-dollar segment of Ethereum’s economy, it has raised persistent concerns around fairness and centralisation.
One of the most significant proposals under discussion is enshrined Proposer-Builder Separation, commonly referred to as ePBS.