DatingDapp

Description

The contract uses a non-specific Solidity pragma version, which allows compilation with multiple versions of the Solidity compiler. While this does not directly introduce security vulnerabilities, it can lead to unexpected behavior if the contract is compiled with a newer Solidity version that introduces breaking changes or new optimizations.

For example, the following pragma statement allows any compiler version >= 0.8.0:

This means the contract could be compiled with 0.8.0, 0.8.1, ... 0.8.20, etc., potentially introducing unexpected changes in future Solidity releases.

Impact

• Inconsistent behavior across deployments – A contract compiled today might behave differently if compiled in the future with a newer Solidity version.

• Potential compatibility issues – Future Solidity versions may introduce breaking changes that affect the contract’s logic.

• This issue does not impact security directly but is considered a best practice to ensure consistent contract behavior across different environments.

Tools Used

Aderyn

Recommendations

Consider using a specific version of Solidity in your contracts instead of a wide version. For example, instead of pragma solidity ^0.8.19;, use pragma solidity 0.8.19;