Trick or Treat

Description:

Starting from Solidity 0.8.20, the compiler targets the Shanghai EVM, which includes the PUSH0 opcode. Not all blockchain networks, particularly some Layer 2 solutions, support this opcode.

Instance:

• Pragma Statement (Line 2):

  pragma solidity ^0.8.24;

Impact:

• Deployment Failures on Some Networks:

  • Attempting to deploy the contract on networks that do not support the Shanghai upgrade will result in deployment failures.

• Limited Network Compatibility:

  • This restricts the contract's usability to only those networks that have implemented the latest EVM updates.

Recommendation:

• Specify Compatible EVM Version:

  • Set the compiler to target an EVM version compatible with the intended deployment networks.

    • In your compiler settings:

      {

      "settings": {

      "evmVersion": "berlin"

      }

      }

• Use an Earlier Solidity Version if Necessary:

  • If deploying to networks without Shanghai support, consider using Solidity 0.8.19 or earlier.

    pragma solidity 0.8.19;

• Verify Network Support:

  • Before deployment, confirm that the target network supports the required EVM version and opcodes.