Optimism releases the anti-quantum roadmap for Superchain, and ECDSA EOA will be gradually phased out over the next 10 years

According to official news, Optimism has released the quantum-resistant roadmap for Superchain, with the core content announcing the gradual phasing out of externally owned accounts (EOA) based on ECDSA signatures over the next decade. The specific plan is that by January 2036, EOA transactions using ECDSA signatures on the OP mainnet and superchain will be deprecated, and all such accounts must delegate their key management to smart contract accounts that support post-quantum signatures.

The roadmap covers both user and consensus levels. At the user level, account abstraction technology will be utilized, through standards like EIP - 7702, to gradually delegate signature authority from EOA to smart accounts capable of verifying post-quantum signatures. At the consensus level, L2 sequencers and batch submitters will migrate to post-quantum signatures, while also calling for Ethereum itself to establish a timeline to transition validators from BLS signatures and KZG commitments to post-quantum algorithms. The entire upgrade process will be coordinated through a hard fork, providing the ecosystem with a decade to achieve a smooth transition.