Differences between Ethereum and Linea
EVM opcodes
Linea uses the London version of the EVM. All EVM opcodes are managed identically to Ethereum London unless presented in the following table. Checkout Ethereum's history to learn about major milestones, forks, and updates to the blockchain.
⚠️ At the moment we do not support the
eth_newFilterandeth_newBlockFilterRPC calls.
| Opcode name | Ethereum | Linea | Explanation |
|---|---|---|---|
DIFFICULTY / PREVRANDAO | Returns the RANDAO value from the previous block | Returns a fixed number | In Ethereum, PREVRANDAO was previously known as DIFFICULTY. However, through the implementation of EIP-4399, it was renamed to PREVRANDAO, and its functionality changed due to the switch from PoW to PoS. Notably, it is a full 256-bit value that represents the randomness beacon output of the previous block. For more, see the 'Security Considerations' section of the above EIP. |
PUSH0 | Pushes the constant value 0 onto the stack | Pushes the constant value 0 onto the stack if Solidity compiler compatibility is implemented | The PUSH0 opcode compatibility was introduced in Solidity compiler version 0.8.20, which came after the London release. However, Linea currently supports Solidity compiler version 0.8.19 and lower, which aligns with the London release of the Ethereum mainnet. To resolve this issue, please recompile your contract using Solidity version 0.8.19 or lower. |
Consult the Ethereum Foundation's Opcode Reference for more.