Pragma allows compilation with latest Solidity version, including unsupported MCOPY opcode on several EVM-compatible chains
Description
As of version 0.8.24 of Solidity, the MCOPY opcode was introduced, offering gas savings as an alternative to using mload + mstore. However, this opcode is not universally supported across all chains at present. According to this website and the documentations provided below, the following chains do not support MCOPY:
Risk
Likelyhood: Medium
Every chains not handling MCOPY.
Impact:
Contracts may not deploy on these chains or could exhibit unexpected behaviors.
Recommended Mitigation
Restrict the pragma to a maximum version of 0.8.23.
Alternatively, you could wait for these chains to upgrade and support the MCOPY opcode.
Lead Judging Commences
Known - LightChaser
https://github.com/Cyfrin/2024-05-Sablier/issues/1
Known - LightChaser
https://github.com/Cyfrin/2024-05-Sablier/issues/1
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