Metis Hybrid Rollup Launches on Devnet, Post-Quantum Proof Path in Development

HuoXing Finance reports that on November 11, Metis announced the launch of its Hybrid Rollup on Devnet, integrating validity proofs into its existing optimistic Rollup architecture to reduce withdrawal waiting times through on-chain verification of execution results. Metis first proposed this design in March 2023 at ETHDenver, with the original goal of reducing the withdrawal waiting period from seven days to hours. Metis stated that this upgrade includes two components: combining optimistic challenge mechanisms with Ziren-based validity proofs (Ziren is an open-source zkVM developed by the ZKM project) and support for ML-DSA post-quantum signatures by the decentralized sequencer (DSeq). The Devnet employs a cryptographic agility design, with its codebase supporting both ECC and PQC pathways; ECC is enabled initially, with gradual module-by-module migration to post-quantum cryptography. The testnet is scheduled to launch in Q1 2027 to demonstrate the operation of both ECC and PQC verification paths and further test the upgraded Hybrid Rollup architecture. Additionally, Metis has published a public discussion draft proposing the conversion of OVM Token into a native asset to better align with standard EVM execution environments. This draft has not yet been approved by governance, and the snapshot block and timeline remain to be determined.