Fusaka

Definition ∞ Fusaka is a significant Ethereum network upgrade designed to enhance scalability, security, and efficiency for Layer 2 transactions. This update introduces innovations such as Peer Data Availability Sampling (PeerDAS) and increases the block gas limit. It aims to reduce transaction fees and accelerate processing speeds for decentralized applications.
Context ∞ The Fusaka upgrade, also known as Fulu-Osaka, was successfully deployed on Ethereum in December 2025, marking a critical milestone for the network. It substantially boosts the capacity of rollups and lowers transaction costs, positioning Ethereum for higher throughput without compromising decentralization. News surrounding Fusaka emphasizes its role in preparing the network for future scaling advancements and supporting the expansion of DeFi and Web3 ecosystems.