What happened?
Ethereum developers have announced that the Fusaka upgrade will be activated on the mainnet on December 3, 2025. The upgrade will include approximately 11-12 Ethereum Improvement Proposals aimed at improving scalability, node efficiency, and data availability. The process will start with a testnet rollout set to begin on October 1 on Holesky.
Who does this affect?
This upgrade will affect everyone in the Ethereum community, including node operators, developers, and users. The upgrade primarily focuses on backend protocol improvements, making Ethereum faster and more efficient. This could potentially lower barriers for smaller operators and enhance the adoption of Layer 2 rollups, impacting how people use and experience the network.
Why does this matter?
This upgrade matters because it demonstrates Ethereum’s commitment to improving its base layer infrastructure amid criticism over its scalability strategies. By prioritizing improvements that increase capacity and efficiency, Ethereum can better support the growth of Layer 2 networks and handle higher transaction volumes. These enhancements will likely have significant implications for Ethereum’s market potential and its role in the broader cryptocurrency ecosystem.