Ethereum Fusaka Upgrade Unveils PeerDAS Sharding and Data Availability Sampling, Boosting L1 Throughput and Cutting Layer 2 Fees

Ethereum developers and analysts highlighted the successful Fusaka upgrade as a milestone, with Vitalik Buterin publishing a celebratory note on PeerDAS progress. The launch features PeerDAS integration delivering sharding and data availability sampling, aligning with Ethereum’s scalability roadmap and long-term data strategies.

On the Layer 2 frontier, capacity expansions via greater blob throughput are expected to support lower costs, with a recent analysis projecting L2 fees could fall by ~40-60%. Nevertheless, Layer 1 remains bounded until the maturation of zero-knowledge EVM, underscoring the need for distributed block-building and sharded memory pools.

This development marks a substantive step in blockchain scalability, closing a decade-long gap since the 2015 sharding vision. The coming two years will target PeerDAS stability and further expansion of the L1 gas limit to unlock higher throughput.