Aztec v5 is the latest version of Aztec's privacy-focused network that introduces private smart contracts for Ethereum (CRYPTO:ETH).

What are private smart contracts?

Private smart contracts allow parts of a transaction or application data to remain confidential while still executing on a blockchain.

Why is Aztec launching an alpha version?

The alpha release allows developers to test the technology, identify bugs and provide feedback before a wider release.

Aztec uses zero-knowledge technology to help protect transaction and application data while relying on Ethereum's underlying security.

Image for illustrative purposes only. Not a real photo.

Written by Heidi Cuthbert Published Jul 22, 2026, 2:20 AM

Aztec launched the alpha version of v5 with private smart contracts for Ethereum (CRYPTO:ETH).
The release lets developers build apps with stronger privacy features.
The company said the alpha will help test the technology before a wider launch.

Aztec has launched the alpha version of v5 for Ethereum (CRYPTO:ETH).

The update introduces private smart contracts for developers building decentralised applications.

Aztec said the new technology keeps some transaction data private while still using Ethereum's blockchain.

The alpha release is aimed at developers who want to test the platform and provide feedback.

The company uses zero-knowledge technology to improve privacy without changing Ethereum's security.

Aztec said it wants privacy to become a standard feature for blockchain applications.

The launch comes as more developers look for ways to protect user data on public blockchains.