Ethereum Activates Highly Anticipated Fusaka Upgrade, Bringing Major Leap In Network Scaling — Will It Catapult ETH To The Moon? Ethereum activated its long-awaited “Fusaka” upgrade on the mainnet on Wednesday, marking the blockchain’s second significant overhaul in 2025. Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Comment * Name * Email * Website Save my name, email, and website in this browser for the next time I comment. Filed under: Altcoins - @ December 4, 2025 12:16 pm