Overview

The release fixes security vulnerabilities found in Fault Proof contracts. You can read more about it in this governance post.

Full Contract Set

A chain using this contracts release must be using the following contracts at the specified semvers.

The following contracts are updated in this release:

• MIPS.sol: 1.1.0
• PreimageOracle.sol: 1.1.2
• FaultDisputeGame.sol: 1.3.0
• PermissionedDisputeGame.sol: 1.3.0
• DelayedWETH.sol: 1.1.0
• DeputyGuardianModule.sol: 2.0.0
• AnchorStateRegistry.sol: 2.0.0

And the core protocol contracts are unchanged from the prior release of op-contracts/v1.5.0:

• AddressManager: Latest (this has no version)
• L1CrossDomainMessenger: 2.3.0
• L1ERC721Bridge: 2.1.0
• L1StandardBridge: 2.1.0
• OptimismMintableERC20Factory: 1.9.0
• OptimismPortal: 3.10.0
• SystemConfig: 2.2.0
• DisputeGameFactory: 1.0.0
• SuperchainConfig: 1.1.0
• ProtocolVersions: 1.0.0
• LivenessGuard: 1.0.0
• LivenessModule: 1.2.0

Full Changelog

The full contracts diff between this release and the prior release can be found at the link below. Note that, because this is a monorepo, this will likely include many unrelated changes and will be a noisy diff.

https://github.com/ethereum-optimism/optimism/compare/op-contracts/v1.5.0...op-contracts/v1.6.0