Polygon Labs proposes upgrade of flagship sidechain to ‘zkEVM validium’

Quick Take

  • The Polygon Labs engineering team has proposed an upgrade to the Polygon PoS sidechain to become ‘zkEVM Validium,’ an Ethereum-secured Layer 2 network.

The engineering team at Polygon Labs has proposed an upgrade to its flagship Polygon Proof-of-Stake (PoS) sidechain to “zkEVM Validium,” a Layer 2 network secured by Ethereum.

According to the proposal, the upgrade aims to align the current Polygon PoS chain with the vision for Polygon 2.0, a future version of Polygon that leverages a specific type of zero-knowledge scaling technology called validium.

The proposal, titled “Polygon 2.0,” states its intention to utilize Polygon’s in-house zkEVM to enhance the sidechain’s security and performance while preserving its low fees. This would be separate from the team’s existing zkEVM, which was rolled out in March 2023.

Sandeep Nailwal, co-founder of Polygon, clarified the distinction between the proposed and existing zkEVM technologies. Speaking with The Block, he stated, “This is an upgrade of the Polygon PoS chain to a zkEVM ‘Validium.’ That means the data availability [for apps] will be with the validators, whereas the existing zkEVM rollup has data availability directly on Ethereum.”


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