[Ethereum Fusaka Upgrade Completes Sepolia Testing, Hoodi Testnet Rehearsal Scheduled for October 28] The Ethereum development team successfully deployed the second test of the Fusaka upgrade on the Sepolia testnet on Tuesday, following initial trials conducted on the Holesky testnet. According to the plan, Fusaka will undergo its final rehearsal on the Hoodi testnet on October 28, after which developers will determine the mainnet activation date. This upgrade introduces the PeerDAS data validation method, allowing validators to process only partial data, significantly reducing bandwidth requirements. At the same time, it optimizes the cost structure for institutional users and Layer 2 networks, bringing more efficient solutions to the Ethereum ecosystem.