According to TechFlow, Mantle announced that Mantle v2 Sepolia Testnet v1.0.1 has 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 MantleDA that transitions to EigenDA. It contains multiple functional optimizations, mainly including:

The DA layer of the Mantle Sepolia testnet switched from MantleDA to EigenDA.

Optimize Meta Transaction, including gas fee estimation, charging logic, add Meta Transaction security check, and improve estimateGas.