Polygon zkEVM, was under development for a year and provides a scalability solution for Ethereum apps, with ZK-rollups performing off-chain computations on a secondary layer to enable faster and cheaper transactions while still maintaining Ethereum's security as a priority.

The network is EVM-equivalent, meaning it will support the same code as Ethereum and allow developers to use their existing tooling and infrastructure. The mainnet is permissionless, and anyone can bridge assets and use them in zkEVM native apps, according to the development team.

A ZK-rollup is a Layer 2 scaling solution for blockchain networks, such as Ethereum, that sets out to improve transaction throughput and reduce transaction fees. It works by aggregating a large number of transactions off-chain into a single batch, which is then submitted to the main chain as a single transaction. Most ZK-rollups don't have natively supported Ethereum applications, which is starting to change with the public release of a few zkEVMs.

The launch of Polygon's zkEVM has attracted more than 50 projects from the crypto, web3 and gaming spaces, including dApps such as Lens and Aavegotchi, DeFi projects 0xvix and Quickswap, as well as Etherscan, Phantom, Midnight Society, Luganodes, Celer, Gameswift, and Yeeha Games.