Fusaka Upgrade Livestream

Fusaka introduces upgrades across L1, L2, and execution that increase throughput headroom, stabilize gas rules, and improve blob economics. Learn what operators and L2 teams should expect during activation.

About the update

Fusaka delivers coordinated improvements across L1, L2, and execution, raising throughput headroom, refining gas behavior, improving blob economics, and making developer workflows more predictable.

Node operators, L2 teams, and engineers preparing for Fusaka testnet rehearsals and mainnet activation.

Agenda

8:00pm

Opening & Fusaka Overview

Moderator: Ahmad Bitar

Description: Overview of Fusaka’s role in scaling Ethereum. How the upgrade aligns L1, L2, and execution changes to reduce gas volatility, improve economics, and support smoother testnet rehearsals.

8:05pm

Testing & Fork Readiness: How We Got Here

Moderator: Kamil Chodola

‍Speakers: Barnabas Busa, Mario Vega

Description: Status of devnets, rehearsal performance, final-stage fixes, and why coordination across client teams results in a more predictable activation path.

8:25pm

Scaling the L1

Moderator: Ben Adams

‍Speakers: Giulio Rebuffo, Lukasz Rozmej, Marius van der Wijden, Toni Wahrstätter

Description (EIPs 7623, 7823, 7838, 7934, 7935): Updates address tight gas accounting, right-size cryptography costs, and adjust block and gas limits. Together, they raise throughput headroom and strengthen the base layer for future scaling.

8:55pm

Scaling the L2

Moderator: Ahmad Bitar

‍Speakers: Alexey Osipov, Gustavo Gonzalez, Mark Mackey, Potuz, Terence Tsao

Description (EIPs 7584, 7892, 7918): Changes expand blob capacity, refine blob-fee behavior, and stabilize cross-layer economics. Rollups gain more predictable conditions and improved capacity without added coordination risk.

9:25pm

End User Experience and Developer Impact

Moderator: Ahmad Bitar

‍Speakers: Ben Adams, Lin Oshitani, Ulaş Erdoğan

Description (EIPs 7917, 7939, 7951): Improvements make confirmations more predictable, simplify contract logic under the updated gas rules, and support smoother wallet interactions. The upgrade makes building and operating on Ethereum more consistent.

9:45pm

Live Fusaka Fork

Moderator: Ben Adams

Description: Walkthrough of the activation. What node operators will observe, how clients behave during the fork, and expectations for stability across implementations.

10:00pm

Ethereum After Fusaka

Moderator: Marc Harvey-Hill

‍Speakers: Tomasz Stanczak, Marek Moraczyński

Description: Recap the impact: L1 has more room to grow, L2s get cheaper and faster, and the UX becomes more seamless.

10:20pm

Closing & Call to Action

Moderator: Ahmad Bitar

Description: A brief wrap-up highlighting key takeaways from Fusaka and directing operators to upgrade notes, testing guidance, and feedback channels.

Speakers