On March 2, 2023, MetisDAO announced that it was building “the first-ever Hybrid Rollup by combining optimistic rollup architecture with [zero-knowledge proofs](https://coinmarketcap.com/alexandria/glossary/zero-knowledge-proof-2).” Although work on the rollup is still ongoing, Metis believes that combining both architectures will help it provide “a secure, developer-friendly Layer 2 for Ethereum developers to deploy all types of decentralized applications.”