# Fusaka Activates On Ethereum Mainnet

> Fusaka has successfully activated and finalized on Ethereum mainnet, bringing scaling improvements through Peer Data Availability Sampling (DAS). 

**Published by:** [ETH Daily](https://ethdaily.io/)
**Published on:** 2025-12-04
**Categories:** news, 2025, december2025
**URL:** https://ethdaily.io/835

## Content

Quick TakeFusaka goes live on Ethereum.Linea simultaneously upgrades to Fusaka.Protocol Guild releases Q4 2025 audit.Shutter threshold encrypted mempool.Fusaka Activates On Ethereum MainnetListen to this episode from Ethereum News on Spotify. Fusaka activates on Ethereum mainnet. Linea simultaneously upgrades to Fusaka. Protocol Guild releases its Q4 2025 audit. And Shutter plans to launch a threshold encrypted mempool for Ethereum. Read more: https://ethdaily.io/835 Sponsor: Arkiv is an Ethereum-aligned data layer for Web3.https://spotify.comSponsored byArkiv is an Ethereum-aligned data layer for Web3. Arkiv brings the familiar concept of a traditional Web2 database into the Web3 ecosystem. Find out more at Arkiv.networkFusaka Activates On Ethereum MainnetThe Fusaka upgrade successfully activated on the Ethereum mainnet at slot 13,164,544. The fork finalized within 15 minutes of activation. Fusaka brings 13 EIPs, delivering improvements in blob scaling, performance, and user experience. The headliner feature, Peer Data Availability Sampling (DAS), enables higher blob throughput, reducing costs for L2s. Blob Parameter Only forks are scheduled to further expand blob capacity by gradually increasing per-block blob limits. Fusaka marks Ethereum’s 17th upgrade, and the second upgrade to activate this year. Ethereum developers are now working on Glamsterdam, the next upgrade featuring BALs and ePBS, scheduled for 2026.Linea Simultaneously Upgrades To Fusaka Linea announced that its EVM-equivalent ZK rollup upgraded to Fusaka simultaneously with Ethereum mainnet for the first time. Linea had previously activated four Ethereum upgrades (Paris, Shanghai, Cancun, and Prague) since its launch. The simultaneous activation brings Ethereum's latest EIPs to Linea in real-time. Linea users and dapps have access to the newest EVM features, including EIP-7951, which enables native passkey support while lowering verification costs. Linea also implemented zkASM, a high-level "source language" that generalizes EVM constraint logic and compiles directly into circuits.Protocol Guild Q4 2025 AuditThe Protocol Guild, a collective supporting Ethereum core protocol contributors, released its Q4 2025 quarterly audit of funded members. The Guild's membership has grown to 184 active core contributors, reflecting a net increase of 8 members from the prior quarter. The guild added 23 new members across teams like Lighthouse, Prysm, and the new zkEVM Working Group. 14 members were also graduated to alumni status, including figures like Dankrad Feist and Davide Crapis. The changes were processed onchain for the first time using new Agora-based DAO contracts. The Protocol Guild has allocated over $33 million to Ethereum core developers since its launch in May 2022.Shutter Threshold Encrypted MempoolShutter Network and Primev are launching a threshold encrypted mempool aimed at protecting users from malicious MEV attacks. The solution uses Shutter's threshold encryption to keep transactions unreadable until their execution order is fixed, combined with Primev's mev-commit infrastructure. It also uses economic enforcement to ensure builders commit blindly and honestly. Users can access the MEV protection by using a custom FastRPC endpoint hosted by Primev. The solution is targeted for a mainnet launch by Q1 2026.Other NewsVitalik: Fusaka is ShardingH* naming pollBankr celebrates 1 yrCelo partners with OperaYo introduces yoGOLDReact server vulnerabilityFusaka on the SuperchainBlob fees explorersyrupUSDT is live on Aave80% DEX trades skip public mempoolFusaka LivestreamsEthstakerReady For MergeNethermindDisclaimer: Content is for informational purposes only, not endorsement or investment advice. The accuracy of information is not guaranteed.

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