The Ethereum Foundation has appointed Will Corcoran, Kev Wedderburn, and Fredrik as co-leads of its protocol cluster, following the departure of some of its prominent engineers.

 

“While Barnabé and Tim are moving on from the Ethereum Foundation soon, and Alex Stokes will be on sabbatical, the Protocol cluster, as it exists today, is in large part due to their work. Under their coordination, Protocol launched tracks and helped to ship Fusaka to mainnet in December 2025, introducing PeerDAS and raising the mainnet gas limit on the path to 200M and beyond,” the foundation wrote in a blog post.

 

“Tim, Barnabé, and Alex shaped Protocol in ways that will outlast their time as cluster leads. We are grateful, and we are looking forward to what each of them takes on next.”

 

What to Know About the New Co-Leads

Will Corcoran is a research coordinator within the protocol, with experience working on zkVM proving, post quantum consensus, and the Fast Confirmation Rule. He has also facilitated numerous community calls, breakout rooms, and in-person protocol events, giving him a deep understanding of how the protocol works.

 

Kev Wedderburn leads the zkEVM team in the protocol and has experience working at the intersection of research and engineering, while Fredrik leads the protocol’s security and has been deeply involved in cross-cluster work.

 

About the Protocol Cluster 

The protocol cluster, often called the protocol, is the core group within the Ethereum Foundation responsible for designing, researching, coordinating, and developing Ethereum's base layer, or L1, blockchain protocol. After its rebranding in 2025, it had one goal: to tackle Ethereum's biggest challenges.

 

To address these challenges, the protocol prioritizes three main areas: enhancing Ethereum's scalability, improving user experience, and strengthening the security and resilience of the Ethereum blockchain network.

 

The protocol also oversees several technical domains, including AllCoreDevs meetings, cryptography, prototyping, security, zkEVM, and peer-to-peer systems. It is currently working on Glamsterdam, the next major Ethereum L1 upgrade, which will introduce features such as enshrined proposer builder separation, known as ePBS under EIP 7732, and gas repricing to support higher gas limits.

 

The restructuring of the Ethereum protocol comes shortly after key figures in the foundation, Josh Stark, last month, and Tomasz K. Stańczak, more recently, left the protocol. Other developers within the foundation have also departed to join other Layer 1 blockchain projects such as Tempo.