Privacy-focused public chain Midnight has completed its mainnet upgrade to Ledger 9, introducing support for private asset transfers. The upgrade also enables inter-contract call execution and adds new cryptographic standards including Keccak-256 and ECDSA. The Ledger 9 upgrade marks a significant step forward for Midnight's privacy capabilities, allowing users to conduct confidential asset transactions on-chain while expanding the platform's smart contract functionality through cross-contract interactions.