# Midnight Completes Ledger 9 Upgrade for Private Cross-Chain Deposits By Simon Yoon Canonical URL: https://www.tokenpost.com/news/technology/52827 Published: 2026-11-10T05:32:42.000Z Updated: 2026-11-10T05:32:42.000Z Section: Technology > The Nov. 6, 2026, release adds contract-to-contract calls limited to unshielded data, plus native Keccak-256 hashing and ECDSA signature verification. Midnight completed its Ledger 9 mainnet upgrade on Nov. 6, 2026, adding cryptographic support for developers building tools for private deposits from other blockchains onto Midnight. The upgrade also adds contract-to-contract calls, allowing one contract to call another. The capability is initially limited to unshielded data. Ledger 9 includes native Keccak-256 hashing and ECDSA signature verification. The mainnet release includes these cryptographic functions and contract-to-contract calls, along with support for developers building private-deposit tools. The update advances Midnight’s earlier [private cross-chain DeFi design](). ## Links in this article - [private cross-chain DeFi design](https://www.tokenpost.com/news/technology/35995)