[Application Development] Target EVM version for Solidity contracts

[guidanoli]

Did you check the documentation?

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Documentation Feedback (Optional)

The documentation doesn't clearly specify which EVM version to target when compiling Solidity smart contracts to EVM bytecode. The closest to an accurate answer is analyze the EIPs included in each network upgrade, and see if all the EIPs in an Ethereum execution-layer hardfork are contemplated.

What type of issue are you experiencing?

• Error
• Feature Request
• General Question

Issue Description

I would like to know which official resource from the OP Stack documentation states which EVM version I should target when compiling Solidity smart contracts meant to be deloyed to OP Stack networks (such as OP Mainnet, OP Sepolia, Base Mainnet, Base Sepolia, etc). This is crucial information. For example, compiling contracts with Solidity 0.8.35 targets the Osaka EVM version, which features the CLZ opcode. However, executing such opcode on OP Mainnet today would fail, because it is an invalid opcode there.

Steps to Reproduce

Consult the official documentation.

Are you using a specific library or SDK?

• OP-SDK
• Viem
• Other
• Not Sure

Are you using the latest version of the library/SDK?

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• No

Environment Details

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Troubleshooting Attempts

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What type of support do you need?

• Technical support for issue resolution
• Feature implementation guidance
• General advice or consultation
• Documentation or learning resources

Additional Information

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