Author: Sophia Brown

An Ethereum Working Group consisting of wallet developers, security firms and the Ethereum Foundation’s Trillion Dollar Security Initiative today launched an open standard designed to end blind signing — a structural flaw that has contributed to billions in user losses, including the Bybit hack. Ethereum Foundation’s Trillion Dollar Security Initiative is taking an active role as a credibly neutral steward of the Clear Signing registry. Across major exploits in crypto and blockchain applications, the final step often isn’t a bug in code, but a user approving a transaction. Even when phishing or an infrastructure compromise initiates the breach, the last…

A semi-regular gathering of Ethereum core devs from various client teams, or interop, recently took place in Svalbard, Norway. Over the week-long event, teams focused on hardening and preparation for the next upgrade, Glamsterdam. Several important milestones came out of the week, including: 200M gas limit floor established: Credible post-Glamsterdam target derived from convergence of ePBS, BAL optimizations, and EIP-8037 repricingePBS stabilized: Multi-client Glamsterdam-devnet running with external builders pipeline tested end-to-end across nearly all clientsEIP-8037 finalized: Fixed cost_per_state_byte adopted; full repricing numbers delivered by Friday on bal-devnet-6Hegotá groundwork laid: FOCIL prototypes are functional; native AA requirements were scoped; the multi-client…

This past week, just over 100 Ethereum core contributors gathered above the Arctic Circle — in Longyearbyen, Svalbard — for the Soldøgn Interop: a week of intense work on the Glamsterdam network upgrade. Soldøgn followed last year’s Berlinterop, but returned to the format used by Amphora 🏺, Edelweiss 🏔️, and Nyota ✨: a single-track week of focused, multi-client progress toward a specific upgrade — in this case, hardening Glamsterdam. By Friday, the group had delivered on its three core goals: alignment on a post-Glamsterdam gas limit floor of 200M, stable ePBS implementations running with external builders, and final EIP-8037 repricing…

TL;DR: We are excited to announce that applications are now open for the seventh cohort of the Ethereum Protocol Fellowship (EPF7). EPF provides a pathway for aspiring protocol developers to make meaningful contributions to Ethereum. In each cohort, a diverse group is assembled to work toward advancing Ethereum’s roadmap focused on the core properties that define Ethereum; censorship resistance, open source, privacy, and security. This includes the development of client implementations, testing and specifications, and engaging with the latest core protocol research. With an overarching goal of finding placement for fellows in R&D teams working on core protocol development, EPF…

Application InfrastructureDeveloper toolingEthereumJS maintenanceMaintenance for the EthereumJS TypeScript stack to ensure reliability and compatibility with execution-layer changes. This includes implementing protocol updates, improving tests, and supporting downstream developers.LinkApplication layerResearchProtecting Ethereum User Anonymity via TorEnhances Ethereum light client privacy by integrating Tor. This project designs and implements a Tor-based mitigation scheme, improving user anonymity and network resilience.Application layerEcosystem developmentERC-8004 Developers EngagementFosters ERC-8004 community growth by providing technical assistance and coordinating builder engagement. Supports decentralized AI engineers through direct feedback and Devconnect event curation.Application layerDeveloper toolingBuidlGuidl: AI-Ready Ethereum Education & Infrastructure MaintenanceTransitions flagship Ethereum education and developer tools, including SpeedRunEthereum and Scaffold-ETH…

This is an update from the Next Billion Fellowship Program. Applications are rolling and open for cohort 6 beginning in October 2025. Individuals interacting with an application have a user experience. Collectives interacting with a protocol have a world experience. There are many worlds that the Ethereum protocol touches; places where organizations, communities, or institutions experience trust through coordination. The Next Billion Fellowship is a program to support individuals working on new use cases and improving trust experience within the world computer. The stories of a global protocol are as diverse and varied as the humans that use it. In…

Ethereum’s weekly All Core Developer calls are a lot to keep up with, so this “Checkpoint” series aims for high-level updates depending on what’s happening in core development. See the previous update here. This is a special edition of the series! Kicking off Berlin Blockchain Week, ethereum core devs and researchers got together for an interop hacking week to make progress both on long-term research directions and short-term implementation of the Fusaka upgrade and gas limit increases. Two of these days solicited feedback on longer-term research directions from L2 and zk teams. The most recent in-person interop was in Bangkok…

As of today, all Ethereum execution clients support partial history expiry in accordance with EIP-4444. While work on full, rolling history expiry is ongoing, users can expect to reduce the disk space required for an Ethereum node by 300-500 GB by removing the block data prior to the Merge. This will allow a node to fit comfortably on a 2 TB disk. See below for information on each specific client. Chain history By definition a blockchain is a chain of blocks starting at a specific genesis point. For Ethereum, that occurred on July 30, 2015. Each block includes information about…

Thanks to Kevaundray Wedderburn, Alex Stokes, Tim Beiko, Mary Maller, Alexander Hicks, George Kadianakis, Dankrad Feist, and Justin Drake for feedback and review. Ethereum is going all in on ZK. Eventually we expect to migrate to using ZK proofs at all levels of the stack, from consensus layer signature aggregation to onchain privacy with client side proving, and upgrade the protocol to be simpler and more zk-friendly. But the first step will be an L1 zkEVM. How we can ship an L1 zkEVM in less than a year The fastest and safest way to ship an L1 zkEVM is to…

Ethereum stands at a pivotal moment. Interest in Ethereum has expanded beyond technologists and enthusiasts, bringing enterprises, governments, and everyday users who seek practical solutions and tangible benefits. The Ethereum ecosystem is adapting to meet these needs, and the Ethereum Foundation is ready to play its part. As outlined in the Ethereum Foundation’s recent vision statement, we have two key goals: Maximizing the number of people who (directly or indirectly) use Ethereum, in such a way that they benefit from Ethereum’s underlying values.Maximizing the resilience of Ethereum’s technical and social infrastructure. Ecosystem Development (EcoDev) refers to teams that help achieve…