The Ethereum network’s eagerly awaited Glamsterdam upgrade is approaching its final stages of development, representing a crucial moment in the network’s advancement. Core developers have begun rigorous testing on specialized private networks, meticulously simulating all proposed changes to ensure a seamless transition. Over the coming weeks, the teams are set to conclude stress examinations and transition the trials to public testnets, an essential step before official mainnet implementation.
What are the latest updates on testing?
According to Parithosh Jayanthi, a core developer and DevOps engineer at Ethereum Foundation, engineering teams are actively engaged with development networks that incorporate every Ethereum Improvement Proposal (EIP) slated for Glamsterdam. This phase marks the last internal testing checkpoint prior to public evaluations. The Ethereum Foundation remains a pivotal force in fostering the ecosystem’s research and technical growth.
Parithosh Jayanthi explained that teams are operating within devnets containing all the proposed protocol updates, with the next phase focused on boosting the system’s resilience before rolling out to testnets.
How does Glamsterdam compare to previous updates?
While the precise launch date for this upgrade isn’t set, projections indicate a potential mainnet deployment in the latter half of 2026. Identified as a significant hard fork since the landmark Merge, Glamsterdam epitomizes a technical revamp of high magnitude. Previously, the Merge in September 2022 transitioned Ethereum from a proof of work to a proof of stake framework. The planned upgrade introduces sweeping changes aimed at achieving greater scalability and efficiency. Following the Fusaka update of December 2025, which prioritized core protocol enhancements, Glamsterdam is poised to address architectural facets vital for broad Ethereum transformations.
What are Glamsterdam’s standout technical features?
Glamsterdam is set to revolutionize the protocol with the integration of the enshrined Proposer Builder Separation (EIP 7732). By internalizing the block proposing and building process, this transformation addresses significant concerns surrounding trust and minimization of Maximal Extractable Value (MEV) risks, formerly prevalent outside core protocol parameters.
Other notable advancements include block-level access lists courtesy of EIP 7928. These lists facilitate blocks in announcing predetermined needs for account states and smart contract data, thereby enabling enhanced client preloading and data caching, leading to more expedient validation and reduced dependency on dynamic data queries.
The upgrade also overhauls the gas fee model. Aimed at harmonizing with prominent zero-knowledge proof systems, the change will render complex computational transactions more affordable while making on-chain data storage pricier. This adjustment strategically links Glamsterdam with Layer 2 solutions.
Jayanthi emphasized that this update will significantly alter transaction costs on Ethereum: compute-heavy operations will become much less expensive, while maintaining state will come with a higher price tag.
In the current stage, developers are finalizing technical outlines, conducting extensive testing, and evaluating how the revised pricing will affect users and application developers. The strategy outlines a clear path from private testing environments to public testing arenas, culminating in the long-anticipated mainnet debut.
