Ethereum Sets 2026 Timeline for Major Protocol Upgrades

Ethereum's core development team has finalized the technical scope and tentative launch windows for two protocol upgrades planned for 2026, signaling a move toward a more predictable, twice-yearly release schedule. The roadmap centers on the Glamsterdam upgrade in the first half of the year and the Hegota upgrade in the second, both aimed at addressing long-standing scalability and infrastructure challenges.

Glamsterdam is focused on improving efficiency at the execution layer. A key feature is Enshrined Proposer-Builder Separation, which brings block-building logic directly into the protocol. According to the development team, this change is intended to reduce risks linked to Maximum Extractable Value (MEV) and centralized censorship, while also broadening participation in block production. The upgrade is also expected to help smooth gas price volatility during periods of heavy network usage.

In addition, Glamsterdam introduces the initial version of "Block Access Lists," a technical step toward parallel transaction execution. Ethereum currently processes transactions sequentially, but the new framework is designed to allow independent transactions to run simultaneously. Developers estimate that, as this approach matures, it could push the network's theoretical throughput toward 10,000 transactions per second by the end of 2026.

The second upgrade, Hegota, targets the growing size of Ethereum's state. Its main change is the replacement of Merkle Patricia Trees with Verkle Trees, enabling much smaller cryptographic proofs. This shift supports the development of so-called stateless clients, which can validate the blockchain without storing its full historical data. Core developers estimate that this could cut storage requirements for node operators by up to 90%.

Together, the two upgrades represent a structural evolution of Ethereum's architecture. By pairing execution-layer optimizations with a lighter data model, the 2026 roadmap aims to support higher transaction volumes while lowering hardware barriers for network participants, reinforcing Ethereum's role as an open and decentralized settlement layer.