According to TechFlow, Mantle announced that Mantle v2 Sepolia Testnet v1.0.1 successfully completed the hard fork upgrade. Sepolia node operators must upgrade, otherwise the nodes will be unusable. Mantle v1.0.1 is an upgraded version of the transition from MantleDA to EigenDA, which includes multiple functional optimizations. Mainly including: the DA layer of the Mantle Sepolia testnet is switched from MantleDA to EigenDA. In addition, Meta Transaction is optimized, including gas fee estimation, charging logic, adding Meta Transaction security checks, and improving estimateGas.