Fusaka $2,000,000 Audit Contest!

Today, we are excited to announce the start of the Fusaka audit contest, co-sponsored by Gnosis and Lido, hosted on Sherlock, and running for four weeks from September 15th. The goal is simple: maximize scrutiny of the Fusaka upgrade and surface vulner…

Holešky Testnet Shutdown Announcement

As previously announced, the Holešky testnet has reached its planned end-of-life date and will be sunset shortly. The vast majority of remaining validator nodes will be shut down 2 weeks after the Fusaka upgrade has finalized on Holešky. After this, Ho…

Protocol Update 003 — Improve UX

A few months ago, we announced a renewed focus of Protocol on three strategic initiatives: Scale L1, Scale blobs, Improve UX. Following previous updates on Scale L1 and Scale blobs, this note relates to our “Improve UX” track, and its mission: **Seaml…

The Ecosystem Support Program’s Next Chapter

The EF’s Grants Program launched in 2018 and has evolved over time to become the Ecosystem Support Program (ESP), providing grants and support to builders that help the Ethereum ecosystem thrive. Our mission is to enable work that strengthens Ethereum’…

Protocol Update 002 – Scale Blobs

Following up from Protocol Update 001, we’d like to introduce our approach to blob scaling. The L1 serves as a robust foundation for L2 systems to scale Ethereum, and a necessary component of secure L2 solutions is data availability provided by the L1….

Trillion Dollar Security – Phase 2

Since announcing the Trillion Dollar Security project, we have surveyed the ecosystem to understand which improvements are highest priority to every layer of the Ethereum stack and community. Now it is time to begin the next phase of this initiative: …

Join Us: EF Protocol Reddit AMA – August 29th, 2025

Since January 2019, the Ethereum Foundation has held a tradition of engaging directly with the community through our “Ask Us Anything” (AMA) series on Reddit, occurring roughly every six months. These AMAs, previously hosted by the EF Research team, ha…

Protocol Update 001 – Scale L1

In June, we introduced Protocol, reorganizing the Ethereum Foundation’s research & development teams to better align on our current strategic goals, Scale L1, Scale Blobs, and Improve UX without compromising on our commitment to Ethereum’s security and…

lean Ethereum

Yesterday Ethereum turned 10. Today, lean Ethereum is unveiled as a vision—and personal mission—for the next 10 years. We stand at the dawn of a new era. Millions of TPS. Quantum adversaries. How does Ethereum marry extreme performance with uncompromi…

Celebrating 10 Years of Ethereum

On July 30, 2025, the Ethereum community marked a major milestone: ten years since the Ethereum’s genesis block and mainnet launch. What began as a whitepaper has evolved into a decentralized platform now powering thousands of applications, tools, and…

Checkpoint #5: July 2025

Ethereum’s weekly All Core Developer calls are a lot to keep up with, so this “Checkpoint” series aims for high-level updates roughly every 4-5 weeks, depending on what’s happening in core development. See the previous update here. !we-are-here.png……

Allocation Update – Q2 2025

From grassroots gatherings to breakthrough projects, here’s what we supported in Q2 2025! Scroll down to explore the work happening across the Ethereum ecosystem:…

The Future of Ecosystem Development at the EF

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…

Shipping an L1 zkEVM #1: Realtime Proving

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 al…

Partial history expiry announcement

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 remo…

Checkpoint #4: Berlinterop

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! Ki…

Ethereum Foundation Treasury Policy

Thank you to the EFers that provided valuable input and feedback to the draft document: Bastian Aue, Vitalik Buterin, Bogdan Popa, Tomasz Stańczak, Fredrik Svantes, Yoav Weiss, Dankrad Feist, Tim Beiko, Nicolas Consigny, Nixo, Alex Stokes, Ladislaus, a…