Protocol Update 003 — Improve UX
https://blog.ethereum.org/en/2025/08/29/protocol-update-003
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: **Seamless, secure and permissionless experience across the Ethereum...
https://blog.ethereum.org/en/2025/08/29/protocol-update-003
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: **Seamless, secure and permissionless experience across the Ethereum...
The Ecosystem Support Program's Next Chapter
https://blog.ethereum.org/en/2025/08/29/esp-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’s foundations and empowers future builders, in domains such as developer...
https://blog.ethereum.org/en/2025/08/29/esp-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’s foundations and empowers future builders, in domains such as developer...
Holešky Testnet Shutdown Announcement
https://blog.ethereum.org/en/2025/09/01/holesky-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, Holešky will no longer be supported by client, testing or...
https://blog.ethereum.org/en/2025/09/01/holesky-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, Holešky will no longer be supported by client, testing or...
Fusaka $2,000,000 Audit Contest!
https://blog.ethereum.org/en/2025/09/15/fusaka-audit-content
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 vulnerabilities before they can impact the network. To...
https://blog.ethereum.org/en/2025/09/15/fusaka-audit-content
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 vulnerabilities before they can impact the network. To...
Announcing the districts of the Ethereum World’s Fair
https://blog.ethereum.org/en/2025/09/18/ethereum-worlds-fair
World’s Fairs have historically showcased the biggest innovations of their time like telephones, televisions, photography, and light bulbs. In this spirit, Ethereum gets its own World’s Fair this November in Buenos Aires. A week where the ecosystem doesn’t just talk about innovation, but showcases what’s being built now, and what’s...
https://blog.ethereum.org/en/2025/09/18/ethereum-worlds-fair
World’s Fairs have historically showcased the biggest innovations of their time like telephones, televisions, photography, and light bulbs. In this spirit, Ethereum gets its own World’s Fair this November in Buenos Aires. A week where the ecosystem doesn’t just talk about innovation, but showcases what’s being built now, and what’s...
Fusaka Testnet Announcement
https://blog.ethereum.org/en/2025/09/26/fusaka-testnet-announcement
Fusaka follows this year's Pectra upgrade, representing a major step forward in Ethereum's scaling roadmap by introducing PeerDAS and key improvements that enhance blob throughput, L1 performance, and user experience. This post announces the testnet activation schedule for the first three testnets, beginning with Holesky at slot 5,283,840 (October...
https://blog.ethereum.org/en/2025/09/26/fusaka-testnet-announcement
Fusaka follows this year's Pectra upgrade, representing a major step forward in Ethereum's scaling roadmap by introducing PeerDAS and key improvements that enhance blob throughput, L1 performance, and user experience. This post announces the testnet activation schedule for the first three testnets, beginning with Holesky at slot 5,283,840 (October...
Checkpoint #6: Oct 2025
https://blog.ethereum.org/en/2025/10/01/checkpoint-6
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....
https://blog.ethereum.org/en/2025/10/01/checkpoint-6
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....
The Ethereum Foundation’s Commitment to Privacy
https://blog.ethereum.org/en/2025/10/08/privacy-commitment
Privacy is the freedom to choose what you share, when you share it, and who you share it with. We all take this for granted in daily life: closing the door to a room, casting a secret ballot, or speaking privately with a friend. But online and onchain, these protections...
https://blog.ethereum.org/en/2025/10/08/privacy-commitment
Privacy is the freedom to choose what you share, when you share it, and who you share it with. We all take this for granted in daily life: closing the door to a room, casting a secret ballot, or speaking privately with a friend. But online and onchain, these protections...
Supporting privacy with new funding mechanisms
https://blog.ethereum.org/en/2025/10/09/new-funding-mechanisms
The Funding Coordination team is excited to announce a joint initiative with Keyring Network that introduces a new approach to impact funding in the Ethereum ecosystem....
https://blog.ethereum.org/en/2025/10/09/new-funding-mechanisms
The Funding Coordination team is excited to announce a joint initiative with Keyring Network that introduces a new approach to impact funding in the Ethereum ecosystem....
Announcing the 2026 EF Internship
https://blog.ethereum.org/en/2025/10/14/internship-2026
The Ethereum Foundation has opened applications for the 2026 Internship Program: a paid, full-time opportunity to work directly with teams advancing the Ethereum protocol and ecosystem. Interns will join EF teams for 12 weeks over the summer, contributing to active R&D and ecosystem-oriented projects across a wide range of...
https://blog.ethereum.org/en/2025/10/14/internship-2026
The Ethereum Foundation has opened applications for the 2026 Internship Program: a paid, full-time opportunity to work directly with teams advancing the Ethereum protocol and ecosystem. Interns will join EF teams for 12 weeks over the summer, contributing to active R&D and ecosystem-oriented projects across a wide range of...
Fusaka Update - Information for Blob users
https://blog.ethereum.org/en/2025/10/15/fusaka-blob-update
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-7549 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...
https://blog.ethereum.org/en/2025/10/15/fusaka-blob-update
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-7549 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...
Fusaka Update – Transaction Gas Limit Cap arrives with EIP-7825
https://blog.ethereum.org/en/2025/10/21/fusaka-gascap-update
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...
https://blog.ethereum.org/en/2025/10/21/fusaka-gascap-update
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...
Unveiling ESP's New Grants Program
https://blog.ethereum.org/en/2025/11/03/new-esp-grants
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...
https://blog.ethereum.org/en/2025/11/03/new-esp-grants
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...
2 weeks to Devconnect: Everything you need to know
https://blog.ethereum.org/en/2025/11/04/devconnect-arg
In two weeks, we open the doors to the first-ever Ethereum World’s Fair at La Rural in Buenos Aires. This year isn’t about someday. It’s about now. On Ethereum today you can pay, play, vote, save, borrow, lend, and chat, all onchain — and at Devconnect you’ll experience that...
https://blog.ethereum.org/en/2025/11/04/devconnect-arg
In two weeks, we open the doors to the first-ever Ethereum World’s Fair at La Rural in Buenos Aires. This year isn’t about someday. It’s about now. On Ethereum today you can pay, play, vote, save, borrow, lend, and chat, all onchain — and at Devconnect you’ll experience that...
Fusaka Mainnet Announcement
https://blog.ethereum.org/en/2025/11/06/fusaka-mainnet-announcement
Fusaka follows this year's Pectra upgrade, representing a major step forward in Ethereum's scaling roadmap that improves L1 performance, increases blob throughput, and enhances user experience. The Fusaka network upgrade is scheduled to activate on the Ethereum mainnet at slot 13,164,544 (December 3, 2025, 21:49:11 UTC). Fusaka also introduces...
https://blog.ethereum.org/en/2025/11/06/fusaka-mainnet-announcement
Fusaka follows this year's Pectra upgrade, representing a major step forward in Ethereum's scaling roadmap that improves L1 performance, increases blob throughput, and enhances user experience. The Fusaka network upgrade is scheduled to activate on the Ethereum mainnet at slot 13,164,544 (December 3, 2025, 21:49:11 UTC). Fusaka also introduces...
Checkpoint #7: Nov 2025
https://blog.ethereum.org/en/2025/11/15/checkpoint-7
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 4-6 weeks, depending on what’s happening in core development. See the previous update here. If you enjoy reading core development updates, you may also...
https://blog.ethereum.org/en/2025/11/15/checkpoint-7
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 4-6 weeks, depending on what’s happening in core development. See the previous update here. If you enjoy reading core development updates, you may also...
Making Ethereum Feel Like One Chain Again
https://blog.ethereum.org/en/2025/11/18/eil
Disclaimer: The following blog is a proposal from the Account Abstraction team. Content may not imply consensus views, and the EF is a broad organization that includes a healthy diversity of opinion across Protocol and beyond that together strengthen Ethereum. Since the early days of Ethereum, the promise has...
https://blog.ethereum.org/en/2025/11/18/eil
Disclaimer: The following blog is a proposal from the Account Abstraction team. Content may not imply consensus views, and the EF is a broad organization that includes a healthy diversity of opinion across Protocol and beyond that together strengthen Ethereum. Since the early days of Ethereum, the promise has...
Allocation Update - Q3 2025
https://blog.ethereum.org/en/2025/12/02/allocation-q3-25
Q3 2025 brought an exciting wave of innovation and community energy! Explore the projects we funded this quarter and the work they’re advancing:...
https://blog.ethereum.org/en/2025/12/02/allocation-q3-25
Q3 2025 brought an exciting wave of innovation and community energy! Explore the projects we funded this quarter and the work they’re advancing:...
Devconnect Argentina Recap
https://blog.ethereum.org/en/2025/12/04/devconnect-arg-wrap
Devconnect Buenos Aires wrapped up as the largest Ethereum Foundation event yet, bringing together a global mix of developers, founders, creators, and curious newcomers....
https://blog.ethereum.org/en/2025/12/04/devconnect-arg-wrap
Devconnect Buenos Aires wrapped up as the largest Ethereum Foundation event yet, bringing together a global mix of developers, founders, creators, and curious newcomers....
The Future of Ethereum’s State
https://blog.ethereum.org/en/2025/12/16/future-of-state
Disclaimer: The following blog is a proposal from the Stateless Consensus team. Content may not imply consensus views, and the EF is a broad organization that includes a healthy diversity of opinion across Protocol and beyond that together strengthen Ethereum. Special thanks to Ladislaus von Daniels and Marius van der...
https://blog.ethereum.org/en/2025/12/16/future-of-state
Disclaimer: The following blog is a proposal from the Stateless Consensus team. Content may not imply consensus views, and the EF is a broad organization that includes a healthy diversity of opinion across Protocol and beyond that together strengthen Ethereum. Special thanks to Ladislaus von Daniels and Marius van der...
Shipping an L1 zkEVM #2: The Security Foundations
https://blog.ethereum.org/en/2025/12/18/zkevm-security-foundations
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...
https://blog.ethereum.org/en/2025/12/18/zkevm-security-foundations
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...