ethereum-optimism/optimism op-contracts/v5.0.0+l2-rev-share-contracts

on GitHub

Overview

This release introduces Revenue Sharing, an opt-in mechanism for configurable distribution of L2 transaction fees between Optimism and chain operators.

New Contracts

• FeeSplitter
  L2 predeploy: 0x420000000000000000000000000000000000002B
  Orchestrates fee collection from vaults and distributes funds to configured recipients.

• SuperchainRevSharesCalculator
  Calculates Optimism’s share as: max(2.5% of gross revenue, 15% of net revenue)

• L1Withdrawer
  Automatically bridges collected shares to L1 once a threshold is reached.
  (Optimism uses this for its share of fees.)

• FeesDepositor (L1)
  Receives bridged fees and deposits them once the threshold is reached
  (for Optimism, this deposits into OPM).

Updates

• FeeVault

  • Added flexible configuration via:
    • setRecipient()
    • setWithdrawalNetwork()
    • setMinWithdrawalAmount()

• Added DeployFeesDepositor deployment script

• Added Genesis flow support to enable revenue sharing on new chain deployments

Audits

• 2025_10-Rev-Sharing-Spearbit.pdf
• 2025_11-Rev-Sharing-Contracts-Upgrader.pdf

Full Changelog: op-contracts/v5.0.0...op-contracts/v5.2.0+l2-fee-splitter-contracts