Aztec Foundation has launched Aztec Tierra, the Alpha V6 upgrade for its privacy-focused Ethereum Layer 2 network, delivering critical security fixes and significant performance improvements for private transactions.
The upgrade resolves known vulnerabilities from earlier versions, including a critical issue discovered in V5. An Aztec spokesperson told The Block that because Aztec is decentralized, the entire network had to upgrade to implement the fix. The foundation added a new AI-powered security testing harness and formal verification of core cryptographic components, aiming to harden code as AI tools make vulnerabilities easier to find.
Performance updates include private transaction proofs generated in about one second on a standard device—twice as fast as before—and Ethereum-to-Aztec message delivery reduced from an average of two minutes to as little as 12 seconds. Aztec said the network has more than 3,000 validators, no centralized sequencer, and no privileged viewing keys.
“Privacy shouldn’t be something you have to request or trust someone else to protect. It should be built into the network,” said Zac Williamson, co-founder and CEO of the Aztec Foundation.
The upgrade arrives with a wave of private applications. zk.money, relaunched by Aztec Labs, allows direct deposits from any Ethereum wallet without complex bridging. Other apps include Galactica for private AI inference, Nemi for private perpetuals trading, Nulo as a private browser wallet, and Rolling Chat, a private message board based on Vitalik Buterin’s Aztec experiments. Olla offers liquid staking for the Aztec token.
The launch lands amid a broader Ethereum privacy push, with Buterin outlining plans for a “cryptographic world computer” and pressing to cut quantum-safe privacy costs.
