Ethereum Fusaka Upgrade Set for December 3, 2025, Introducing PeerDAS and Blob Capacity Expansion
Ethereum will activate its Fusaka upgrade on December 3, 2025, at slot 13,164,544. The upgrade introduces PeerDAS technology through EIP-7594, enabling validators to verify rollup data by sampling random cells rather than downloading complete datasets. The protocol changes target rollup scalability by reducing validator bandwidth requirements while creating pathways for an 8x increase in blob capacity without requiring data center infrastructure for home stakers.