Online reports that following the successful deployment of the Pectra upgrade, Ethereum core developers have turned their attention to the next major upgrade,"Fusaka", which is scheduled to be launched by the end of 2025. It has been determined that proposals involving PeerDAS will be included, aiming to reduce the operating costs of Layer 2 expansion solutions and verifiers. PeerDAS (Peer-to-Peer Data Availability Sampling) is a data availability sampling mechanism that allows nodes to verify its availability without having to download complete data, thereby improving network efficiency and reducing resource consumption. This mechanism is expected to further optimize Ethereum's capacity expansion capabilities and enhance the scalability and decentralization characteristics of the network. It is reported that the specific content of the Fusaka upgrade is still under discussion, but the developers have reached an agreement on introducing PeerDAS.