Ethereum’s next major protocol upgrade just cleared its most important technical hurdle. Glamsterdam, the network’s follow-up to the Fusaka upgrade that shipped in December 2025, has activated its final development network with all planned Ethereum Improvement Proposals included.
The target: a new gas limit floor of 200 million, roughly 3.3 times the current ceiling of around 60 million.
What Glamsterdam actually changes
The 200 million gas target was formalized in May 2026 during the Soldøgn interoperability event held in Svalbard. Core developers used the event to align on the upgrade’s parameters and stress-test cross-client compatibility before spinning up the final devnet in June.
Two EIPs stand out in the Glamsterdam package. EIP-7732 introduces enshrined proposer-builder separation, or ePBS. Right now, the relationship between the validators who propose blocks and the specialized builders who construct them exists largely through external software like MEV-Boost. Enshrining that separation directly into the protocol is designed to reduce centralization risks tied to miner extractable value.
