Ethereum completes Fusaka upgrade, officially moving to a twice-yearly hard fork schedule

According to Jinse Finance, Ethereum’s 17th major upgrade, “Fusaka,” has officially been activated on the mainnet at epoch 411392 (around 5:50 AM Beijing time on Thursday), only about 7 months after the Pectra upgrade in May. This upgrade not only brings multiple UX and scalability improvements but also marks Ethereum’s official entry into an accelerated development pace of “two hard forks per year.”

Consensys stated that Ethereum researchers will aim for two upgrades per year in the future. Since the Merge in 2022, Ethereum has typically carried out only one major update per year: Shapella (2023), Dencun (2024), and Pectra (2025).

Fusaka introduces several key technical changes, including the new sampling technology “PeerDAS,” which impacts data availability and pricing. This upgrade includes a total of 9 core EIPs and 4 supporting EIPs, making it, by some metrics, one of the largest upgrades in Ethereum’s history.