December 16, 2025
Ethereum

Sepolia Pectra Incident Update | Ethereum Foundation Blog

At 7:29 UTC today, on epoch 222464, the Pectra network upgrade went live on the Sepolia testnet. Unfortunately, an issue with Sepolia’s permissioned deposit contract prevented many execution layer clients from including transactions in blocks. The root cause was identified within minutes, and client teams immediately began working on a fix. This issue is due

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Ethereum

Mekong Deprecation Announcement | Ethereum Foundation Blog

The Mekong devnet was meant to be a playground for wallet developers to experiment with UX changes and for stakers to gain confidence in the upcoming Pectra changes. The Pectra network upgrade has been activated on the Ethereum Sepolia and Holesky testnets. These networks can now be used to test the Pectra upgrade features. In

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Ethereum

Ethereum Foundation Board of Directors Update

We are pleased to announce that Hsiao-Wei Wang is joining the Ethereum Foundation’s Board of Directors. The current board members now include Aya Miyaguchi (President) , Vitalik Buterin (Founder), Patrick Storchenegger (Swiss council) and Hsiao-Wei Wang (Co-ED). As this transition unfolds, the board will share further updates on its… Source link

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Ethereum

Holesky and Hoodi Testnet Updates

The Pectra testnet activation revealed issues in clients with deposit contract configurations changes on Ethereum testnets. While Sepolia’s recovery was straightforward and the network has since fully recovered, Holesky experienced extensive inactivity leaks as part of its recovery mechanism. The Holesky network has since then finalized, but the exited validators would take approximately one year

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Ethereum

Checkpoint – March 2025 | Ethereum Foundation Blog

Ethereum’s weekly All Core Developer calls are a lot to keep up with, so this “Checkpoint” series aims for brief high-level updates with a target cadence of every 4-5 calls, depending on what’s happening in core development. See the initial update here. All subsequent updates will be hosted here on the Ethereum Foundation blog. The

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Ethereum

Ethereum Protocol Fellowship Cohort 5 Recap

TL;DR: The EPF successfully concluded the fifth cohort, Study Group 2025 and is preparing for cohort six (EPF6). Applications will be announced soon, keep an eye on the EF blog! In the meantime, get ready by enhancing your Ethereum protocol knowledge at EPF.wiki and sign up for the newsletter to get notified about announcements. The

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Ethereum

Announcing Ethereum Protocol Fellowship Cohort 6

TL;DR: We are excited to announce that the applications are now open for the sixth cohort of the Ethereum Protocol Fellowship (EPF6). The 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 during the fellowship. This

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Ethereum

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, have provided a forum for deep dives into the protocol’s evolving landscape, direct Q&A with core

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Ethereum

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: acting on the highest priority issues we face. For this first wave of actions, we

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Ethereum

Fusaka Update – Transaction Gas Limit Cap arrives with EIP-7825

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

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