Ethereum Activates Fusaka Upgrade With PeerDAS Data System

Ethereum activated the Fusaka upgrade on May 7, 2025, at 21:49 UTC, introducing PeerDAS—a data-availability system designed to reduce validator computational load through sampling rather than full data verification. The upgrade includes 12 Ethereum Improvement Proposals targeting network efficiency and scalability. Core developers confirmed finalization approximately 15 minutes after activation during the EthStaker livestream.