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

November 11 — Metis announced that its Hybrid Rollup has launched on Devnet. The solution introduces validity proofs into Metis' existing optimistic Rollup architecture, shortening withdrawal wait times through on-chain verification of execution results. Metis first proposed the design at ETHDenver in March 2023, with the original goal of reducing the withdrawal waiting period from 7 days to hours.

Metis stated that this upgrade covers two components: combining optimistic challenges 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 adopts a cryptographic agility design, with the codebase supporting both ECC and PQC paths; initially only ECC is enabled, after which modules will be switched to post-quantum cryptography one by one.

The testnet is planned to launch in Q1 2027 to demonstrate the operation of both the ECC and PQC verification paths and to conduct further testing of the upgraded Hybrid Rollup architecture.

In addition, Metis published a public discussion draft proposing to convert the OVM Token into a native asset to further align with the standard EVM execution environment. The draft has not yet been approved by governance, and the snapshot block and timeline remain to be determined.