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Instead of using an older version of Solidity compiler, in hardhat to prevent use of PUSH0 you can try setting evmVersion to a previous version (e.g. paris, which is the one before shanghai) whilst still using the latest compiler version (0.8.21 currently):

solidity: {
    compilers: [
      {
        version: `0.8.21`,
        settings: {
          optimizer: {
            enabled: true,
            runs: 15000
          },
          evmVersion: `paris`
        }
      },
    ],
  },

Polygon announced last week that they’ve just implemented PUSH0 on their zkEVM blockchain. I’ve tested the testnet and it works. zkEVM mainnet will work from 2023-09-10: Polygon zkEVM: Dragon Fruit Upgrade (with New Opcode) Coming to Mainnet Beta

I also tested 140 blockchains today and only found these ones (16%) that support PUSH0 currently:

• auroraTestnet
• edgeware
• edgewareTestnet
• gnosis
• chiado
• goerli
• mainnet
• moonbaseAlpha
• moonbeam
• moonriver
• polygonZkEvmTestnet
• pulsechain
• pulsechainV4
• sapphire
• sapphireTestnet
• scrollSepolia
• sepolia
• syscoin
• syscoinTestnet
• taikoTestnetSepolia

Hopefully the many other blockchains will follow, as developers want to be able to use the latest version.

Instead of going back to an older version of Solidity compiler, in hardhat to prevent use of PUSH0 you can try setting evmVersion to a previous version (e.g. paris, which is the one before shanghai) whilst still using the latest compiler version (0.8.21 currently):

solidity: {
    compilers: [
      {
        version: `0.8.21`,
        settings: {
          optimizer: {
            enabled: true,
            runs: 15000
          },
          evmVersion: `paris`
        }
      },
    ],
  },

Polygon announced last week that they’ve just implemented PUSH0 on their zkEVM blockchain. I’ve tested the testnet and it works. zkEVM mainnet will work from 2023-09-10: Polygon zkEVM: Dragon Fruit Upgrade (with New Opcode) Coming to Mainnet Beta

I also tested 140 blockchains today and only found these ones (16%) that support PUSH0 currently:

• auroraTestnet
• edgeware
• edgewareTestnet
• gnosis
• chiado
• goerli
• mainnet
• moonbaseAlpha
• moonbeam
• moonriver
• polygonZkEvmTestnet
• pulsechain
• pulsechainV4
• sapphire
• sapphireTestnet
• scrollSepolia
• sepolia
• syscoin
• syscoinTestnet
• taikoTestnetSepolia

Hopefully the many other blockchains will follow, as developers want to be able to use the latest version.

In hardhat to prevent use of PUSH0 you can try setting evmVersion to a previous version (e.g. paris, which is the one before shanghai) whilst still using the latest compiler version (0.8.21 currently):

solidity: {
    compilers: [
      {
        version: `0.8.21`,
        settings: {
          optimizer: {
            enabled: true,
            runs: 15000
          },
          evmVersion: `paris`
        }
      },
    ],
  },

Polygon announced last week that they’ve just implemented PUSH0 on their zkEVM blockchain. I’ve tested the testnet and it works. zkEVM mainnet will work from 2023-09-10: Polygon zkEVM: Dragon Fruit Upgrade (with New Opcode) Coming to Mainnet Beta

I also tested 140 blockchains today and only found these ones (16%) that support PUSH0 currently:

• auroraTestnet
• edgeware
• edgewareTestnet
• gnosis
• chiado
• goerli
• mainnet
• moonbaseAlpha
• moonbeam
• moonriver
• polygonZkEvmTestnet
• pulsechain
• pulsechainV4
• sapphire
• sapphireTestnet
• scrollSepolia
• sepolia
• syscoin
• syscoinTestnet
• taikoTestnetSepolia

Hopefully the many other blockchains will follow, as developers want to be able to use the latest version.

Instead of using an older version of Solidity compiler, in hardhat to prevent use of PUSH0 you can try setting evmVersion to a previous version (e.g. paris, which is the one before shanghai) whilst still using the latest compiler version (0.8.21 currently):

solidity: {
    compilers: [
      {
        version: `0.8.21`,
        settings: {
          optimizer: {
            enabled: true,
            runs: 15000
          },
          evmVersion: `paris`
        }
      },
    ],
  },

Polygon announced last week that they’ve just implemented PUSH0 on their zkEVM blockchain. I’ve tested the testnet and it works. zkEVM mainnet will work from 2023-09-10: Polygon zkEVM: Dragon Fruit Upgrade (with New Opcode) Coming to Mainnet Beta

I also tested 140 blockchains today and only found these ones (16%) that support PUSH0 currently:

• auroraTestnet
• edgeware
• edgewareTestnet
• gnosis
• chiado
• goerli
• mainnet
• moonbaseAlpha
• moonbeam
• moonriver
• polygonZkEvmTestnet
• pulsechain
• pulsechainV4
• sapphire
• sapphireTestnet
• scrollSepolia
• sepolia
• syscoin
• syscoinTestnet
• taikoTestnetSepolia

Hopefully the many other blockchains will follow, as developers want to be able to use the latest version.

In hardhat you can try setting evmVersion to a previous version whilst still using the latest compiler version:

solidity: {
    compilers: [
      {
        version: `0.8.21`,
        settings: {
          optimizer: {
            enabled: true,
            runs: 15000
          },
          evmVersion: `paris`
        }
      },
    ],
  },

Polygon announced last week that they’ve just implemented PUSH0 on their zkEVM blockchain. I’ve tested the testnet and it works. zkEVM mainnet will work from 2023-09-11: Polygon zkEVM: Dragon Fruit Upgrade (with New Opcode) Coming to Mainnet Beta

Hopefully the many other blockchains will follow, as developers want to be able to use the latest version.

In hardhat to prevent use of PUSH0 you can try setting evmVersion to a previous version (e.g. paris, which is the one before shanghai) whilst still using the latest compiler version (0.8.21 currently):

solidity: {
    compilers: [
      {
        version: `0.8.21`,
        settings: {
          optimizer: {
            enabled: true,
            runs: 15000
          },
          evmVersion: `paris`
        }
      },
    ],
  },

Polygon announced last week that they’ve just implemented PUSH0 on their zkEVM blockchain. I’ve tested the testnet and it works. zkEVM mainnet will work from 2023-09-10: Polygon zkEVM: Dragon Fruit Upgrade (with New Opcode) Coming to Mainnet Beta

I also tested 140 blockchains today and only found these ones (16%) that support PUSH0 currently:

• auroraTestnet
• edgeware
• edgewareTestnet
• gnosis
• chiado
• goerli
• mainnet
• moonbaseAlpha
• moonbeam
• moonriver
• polygonZkEvmTestnet
• pulsechain
• pulsechainV4
• sapphire
• sapphireTestnet
• scrollSepolia
• sepolia
• syscoin
• syscoinTestnet
• taikoTestnetSepolia

Hopefully the many other blockchains will follow, as developers want to be able to use the latest version.