Ethereum has successfully activated the highly anticipated Fusaka upgrade, which is designed with the primary goals of significantly reducing the costs associated with running nodes and enhancing the speed of layer-2 settlement processes. This upgrade represents a crucial step forward for the Ethereum network, as it seeks to improve overall efficiency and reduce the financial burden on validators and developers while also accelerating transaction processing times for users leveraging layer-2 solutions. With the Fusaka upgrade, Ethereum aims to bolster its scalability and performance, ultimately making it a more attractive platform for a broader range of decentralized applications and services.
source: https://www.coindesk.com/tech/2025/12/03/ethereum-activates-fusaka-upgrade-aiming-to-cut-node-costs-speed-layer-2-settlements