According to official news, Polygon announced that the latest upgrade testing of its protocol will be conducted exclusively on the new, Sepolia-anchored Polygon PoS test network Amoy and Polygon zkEVM test network Cardona. Amoy and Cardona will provide dApps, smart contracts and other functions. Safe and stable testing environment. Polygon said that this change is in line with the Ethereum Foundation’s decision to stop supporting the multi-client test network Goerli. According to previous news, support for the Goerli test network will end one month after the Dencun upgrade is activated on the main network, and then the Polygon protocol will also be abandoned. Testnet anchored with Goerli.