Component

kona-hardforks crate

Provenance

This was ported from op-alloy since hardforks were migrated from op-alloy-consensus to a new consensus-layer kona-hardforks crate.

Describe the feature you would like

The operator fee is specified to be part of the isthmus hardfork.

As part of the Isthmus hardfork, the isthmus activation block contains these network upgrade transactions.

These are implemented in op_alloy_consensus in this draft PR.
op-alloy-consensus reads in the bytecode for the following deployed contracts.

• Gas Price Oracle
• L1 Block
• Operator Fee Vault
• EIP-2935 Predeploy

Notice, as mentioned in the pr comments, the contract bytecode is missing for:

• Gas Price Oracle
• L1 Block
• Operator Fee Vault

These cannot be filled in until the Operator Fee contract implementation is merged in the Optimism Monorepo and a release is cut that produces the contract creation bytecode that can be filled in here. Effectively, this means ethereum-optimism/optimism#12166 has to be merged and a contract release cut to produce the bytecode for these contracts.

Additional context

No response