Celestia schedules the Hibiscus (v7) upgrade, adding ZK-verified cross-chain messaging

Celestia/Celestia mainnet

Celestia scheduled its Hibiscus (v7) upgrade for mainnet in mid-March 2026. It adds a zero-knowledge proof module so cross-chain messages via Hyperlane are verified by cryptography rather than a multisig committee, plus single-signature token forwarding and shorter node data retention.

• ZK interchain security module (CIP-46) enables cryptographic verification of cross-chain messages via Hyperlane without multisig
• Forwarding module (CIP-45) enables single-signature cross-chain token transfers, eliminating multi-transaction signing for users
• Validator commission adjustment and node optimisation: minimum block retention cut from 14 days to approximately 5 hours