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Polygon launches the mainnet beta of its zkEVM layer 2 scaling solution for Ethereum, three days after rival Matter Labs released its own zkEVM, zkSync Era (Margaux Nijkerk/CoinDesk)

Margaux Nijkerk / CoinDesk:
Polygon launches the mainnet beta of its zkEVM layer 2 scaling solution for Ethereum, three days after rival Matter Labs released its own zkEVM, zkSync Era  —  The release of Polygon’s zkEVM comes just days after competitor Matter Labs released its own zkEVM, zkSync Era.