Author: Michael Johnson

tl;dr: Over the last couple of days, some L2s noticed that their deployments on Sepolia didn’t work properly anymore. This is due to EIP-7594 which changes the format for proofs. In anticipation of Fusaka, we urge all blob originators to update their software to create Cell Proofs instead of blob proofs. Background One underdiscussed aspect of EIP-7594 (PeerDAS) is that it changes the format for proofs from blob proofs to cell proofs. This allows for downloading a specific part of the blob instead of the whole blob for data availability sampling. This change might break user applications that send blob…

Starting with the upcoming Fusaka hard fork, EIP-7825 introduces a per-transaction gas limit cap of 2²⁴ (≈ 16.78 million gas). This change is already live on Holesky and Sepolia, and will activate on mainnet with Fusaka. Developers and users who rely on very large transactions should verify that their contracts and transaction builders conform to the new cap. Background As Ethereum scales to higher block gas limits and prepares for parallel execution (e.g. EIP-7928 in Glamsterdam), the Fusaka fork introduces a per-transaction gas limit cap. Previously, a single transaction could consume the entire block gas limit (~45 million gas), creating…

Over the past few years, the Ethereum ecosystem has grown in depth, diversity, and maturity. Builders and communities worldwide have pushed the boundaries of what’s possible, creating new tools, protocols, and public goods that strengthen the network as a whole. As the ecosystem grows, our approach to supporting it must adapt as well. Today, we’re excited to share the next step in that journey: the Ecosystem Support Program’s (ESP) new grants program. This announcement builds on our earlier update, where we temporarily paused open grant applications to reassess our priorities and funding approach. During this time, we focused on designing…

Thanks to Arantxa Zapico, Benedikt Wagner, and Dmitry Khovratovich from the EF cryptography team for their contributions, and to Ladislaus, Kev, Alex, and Marius for the careful review and feedback. The zkEVM ecosystem has been sprinting for a year. And it worked! We crossed the finish line for real-time proving! Now comes the next phase: building something mainnet-grade. From speed to security In July, we published a north-star definition for realtime proving. Nine months later, the ecosystem crushed it: proving latency dropped from 16 minutes to 16 seconds, costs collapsed 45×, and zkVMs now prove 99% of all Ethereum blocks…

Fusaka shipped PeerDAS in addition to a myriad of minor features and Glamsterdam’s major features will include Block-level Access Lists and enshrined Proposer-Builder Separation. Now we begin outlining the subsequent upgrade: Hegotá. Timeline Jan 8th – Feb 4th: Headliner proposals (EthMag) Feb 5th – Feb 26th*: Headliner discussion & finalization (ACD calls) 30-day window to follow: Non-headliner EIP proposals (Hegota Meta EIP) *subject to change Headliner proposals Hegota’s major features (”headliners”) will be chosen first. These features, presented as EIPs, can be submitted on the Ethereum Magicians forum beginning January 8th, using a template that will be posted in the…

Devcon, the Ethereum community’s annual global gathering for builders, will take place from 3-6 November 2026 at the JIO World Center in Mumbai, India. This Devcon 8 update is not a full vision, but will help organizers and the wider ecosystem plan. More details on programming, tracks, and participation will follow in the coming months. Why India, why Mumbai India was selected as the next host location based on the scale and rapid growth of its developer ecosystem, rising local adoption, and strong grassroots Ethereum communities. India has 17M+ developers on GitHubIt has been the largest source of new crypto…

Today, we are announcing a transition in the executive leadership team at the Ethereum Foundation. After extensive contributions to the Foundation’s mission and operations, Tomasz Stańczak has decided to step down from his role as Co-Executive Director. The Foundation’s Board has appointed Bastian Aue to serve as interim Co-Executive Director, effective immediately. Tomasz joined the management team during a critical period of growth and maturation for the Foundation. His strategic guidance helped expand our ability to reach out to broad groups of people and teams, and for the EF to understand businesses in the ecosystem more deeply. He also brought…

tl;dr I am stepping down from my co-ED role at the EF at the end of February 2026. Bastian Aue is taking over the co-ED role alongside Hsiao-Wei. The future is bright for builders, for Ethereum, for the EF, and for me. Future of Ethereum As competing ideas emerge and fail and the markets jump up and down, we have never been given too much certainty. The conviction about Ethereum that comes from a deep understanding of its technology, its governance, its meaning for the future, and the values we share will always make us converge intermittently, even when our…

Platform is a new team inside the EF with one goal: Deliver the strongest possible Ethereum platform, where L1 and L2s are best positioned to support users, apps, and all organizations building on Ethereum. This requires improving the L1 <> L2 relationship, so that we grow as a mutually reinforcing system across each layer. Since the rollup-centric roadmap was first proposed 5 years ago, an ecosystem of chains has grown up around the Ethereum L1. The early mental model of rollups has given way to a network of differentiated L2s, each with distinct and valuable economies, extending Ethereum’s core properties…

tl;dr: Ethereum Protocol Studies returns for 2026 with new content tracks in cryptography, lean consensus and zkEVM, plus a new self-paced learning platform. The program kicks off February 23rd. Visit epf.wiki to get started. Ethereum Protocol Studies (EPS) is back. Since launching as a 10-week study group ahead of EPF5, EPS has grown into the primary educational on-ramp for anyone looking to understand Ethereum’s core protocol. Hundreds of participants have used the program to go from general Ethereum familiarity to reading specs, navigating client codebases, and contributing to protocol development. This year’s program expands in both depth and format. EPS…