Ethereum Protocol Update 002 — Blob Data Extension Roadmap: Fusaka’s PeerDAS Raises Blobs from 6 to 48, Targeting 8x L2 Throughput

The Ethereum Foundation on August 22 published Protocol Update 002, unveiling the Blob Data Extension Roadmap to enhance data availability across Layer-2 networks. The plan targets improved support for real-time payments, DeFi, social media and AI applications by expanding on-chain throughput and bolstering ecosystem resilience.

Key technical milestones include the upcoming Fusaka upgrade, which introduces a PeerDAS architecture to raise blobs per block from 6 to 48, alongside a Blob Parameter Hard Fork (BPO) designed for phased mainnet capacity growth with a theoretical 8x throughput improvement. Network efficiency gains are also expected through bandwidth optimizations such as Unit-Level Message Passing.

The roadmap foresees the Glamsterdam upgrade (expected mid-2026) deploying PeerDAS v2, while ongoing research into Blob Pool Extension and FullDAS aims to maintain Ethereum’s core attribute of censorship resistance as the protocol adopts a more incremental optimization strategy to accelerate the L2 ecosystem.