According to BlockBeats, on November 11, Metis launched its Hybrid Rollup on Devnet, combining optimistic proofs with validity proofs to reduce withdrawal wait times from 7 days to hours. The upgrade integrates optimistic challenge mechanisms with Ziren validity proofs (a zkVM developed by ZKM) and adds decentralized sequencer (DSeq) support for post-quantum ML-DSA signatures.

Metis is implementing cryptographic agility in Devnet, supporting both ECC and post-quantum cryptography (PQC) pathways, with ECC initially enabled and gradual module-by-module migration to PQC. Testnet launch is planned for Q1 2027 to demonstrate both verification paths and conduct further testing on the upgraded architecture.

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