# Zircuit Markdown version of https://l2beat.com/layer2s/projects/zircuit ## Summary **Warning:** Why is the project listed in others? The proof system isn't fully functional. Consequence: projects without a proper proof system fully rely on single entities to safely update the state. A malicious proposer can finalize an invalid state, which can cause loss of funds. Learn more about the [recategorisation](https://medium.com/l2beat/framework-update-l2-projects-recategorisation-5d43b0d1fe50). - Total Value Secured: $12.29 M (+4.13% compared to seven days ago; canonically bridged $8.63 M, natively minted $0.00, externally bridged $3.66 M; 29.7% with additional trust assumptions compared to the tokens involved and the Stage assigned to the project's canonical messaging bridge) - **Warning:** The ZRC token associated with Zircuit accounts for 31.8% of the TVS! (sentiment: warning) - TVS by asset: ETH & derivatives $7.78 M (63.3%), Stablecoins $462.11 K (3.75%), BTC & derivatives $135.48 K (1.10%), Other $3.91 M (31.8%) - Associated tokens: ZRC: $3.91 M (31.8% of TVS) - Past day UOPS: 0.53 (+0.57% compared to seven days ago) - Gas token: ETH - Type: Other - Purpose: Universal - Host chain: Ethereum - Chain ID: 48900 ### Risks - Sequencer failure: Self sequence (12h delay; sentiment: good) - State validation: Fraud proofs (INT) (3d 12h challenge period + 3d 12h execution delay; sentiment: bad) - Data availability: Onchain (sentiment: good) - Exit window: None (sentiment: bad) - Proposer failure: Cannot withdraw (sentiment: bad) ### About Zircuit is a universal rollup. It is based on the Optimism Bedrock architecture, employing AI to identify and stop malicious transactions at the sequencer level. ### Links - Website: https://zircuit.com/ - Bridge: https://bridge.zircuit.com/, https://app.zircuit.com/ - Docs: https://docs.zircuit.com/ - Explorer: https://explorer.zircuit.com/ - Repository: https://github.com/zircuit-labs - Social: https://x.com/ZircuitL2, https://discord.com/invite/zircuit, https://zircuit.com/blog, https://t.me/zircuitl2_bot - Other: https://rollup.codes/zircuit - Contracts explorer (Disco): https://disco.l2beat.com/ui/p/zircuit ### Badges - EVM: This project uses the Ethereum Virtual Machine to run its smart contracts and supports the Solidity programming language - Ethereum with blobs: This project is posting its data to Ethereum as blobs - Built on OP Stack: The project is built on the OP Stack - Conduit: This project was deployed via the rollup-as-a-service provider Conduit ## Value Secured The interactive TVS charts are shown on [the HTML page](https://l2beat.com/layer2s/projects/zircuit#tvs). Token by token: [TVS breakdown](https://l2beat.com/layer2s/projects/zircuit/tvs-breakdown). - [TVS chart (JSON)](https://l2beat.com/api/scaling/tvs/zircuit) - [TVS breakdown by token (JSON)](https://l2beat.com/api/scaling/tvs/zircuit/breakdown) ## Activity The interactive activity chart is shown on [the HTML page](https://l2beat.com/layer2s/projects/zircuit#activity). - [Activity chart (JSON)](https://l2beat.com/api/scaling/activity/zircuit) ## Onchain costs The section shows the operating costs that L2s pay to Ethereum. The interactive costs chart is shown on [the HTML page](https://l2beat.com/layer2s/projects/zircuit#onchain-costs). ### Tracked transactions #### Batch submissions - transfer: 2024-07-02 16:03 UTC - 2026-08-04 14:55 UTC; historical; from: [0xAF1E4f6a47af647F87C0Ec814d8032C4a4bFF145](https://etherscan.io/address/0xAF1E4f6a47af647F87C0Ec814d8032C4a4bFF145); to: [0xFF00000000000000000000000000000000048900](https://etherscan.io/address/0xFF00000000000000000000000000000000048900) - transfer: 2026-08-04 14:55 UTC - now; currently used; from: [0xCf8225801DF6Ef90aD3bc86808F574403A309de8](https://etherscan.io/address/0xCf8225801DF6Ef90aD3bc86808F574403A309de8); to: [0xFF00000000000000000000000000000000048900](https://etherscan.io/address/0xFF00000000000000000000000000000000048900) #### State updates - functionCall: 2024-07-05 00:00 UTC - 2025-03-11 01:01 UTC; historical; address: [0x92Ef6Af472b39F1b363da45E35530c24619245A4](https://etherscan.io/address/0x92Ef6Af472b39F1b363da45E35530c24619245A4); selector: 0xa9efd6b8; signature: `function proposeL2Output(bytes32 _outputRoot, uint256 _l2BlockNumber, bytes32 _l1Blockhash, uint256 _l1BlockNumber, bytes _proof)` - functionCall: 2025-03-11 01:01 UTC - 2025-08-25 18:54 UTC; historical; address: [0x92Ef6Af472b39F1b363da45E35530c24619245A4](https://etherscan.io/address/0x92Ef6Af472b39F1b363da45E35530c24619245A4); selector: 0x1bf75d29; signature: `function proposeL2OutputV2(uint256 _batchIndex, bytes32 _batchHash, bytes32 _poseidonPostStateRoot, bytes32 _outputRoot, uint256 _l2BlockNumber, bytes32 _l1BlockHash, uint256 _l1BlockNumber, bytes _aggrProof) payable` - functionCall: 2025-08-25 18:54 UTC - 2025-11-24 20:55 UTC; historical; address: [0x92Ef6Af472b39F1b363da45E35530c24619245A4](https://etherscan.io/address/0x92Ef6Af472b39F1b363da45E35530c24619245A4); selector: 0x76340d0a; signature: `function proposeL2OutputV3(bytes32 _outputRoot, uint256 _l2BlockNumber, uint256 _l1BlockNumber, bytes _proof, address _proverAddress) payable` - functionCall: 2025-11-24 20:55 UTC - 2026-08-04 14:11 UTC; historical; address: [0x92Ef6Af472b39F1b363da45E35530c24619245A4](https://etherscan.io/address/0x92Ef6Af472b39F1b363da45E35530c24619245A4); selector: 0x2685d148; signature: `function proposeL2OutputV3(bytes32 _outputRoot, uint64 _claimNonce, address _claimSenderAddress, uint256 _l2BlockNumber, uint256 _l1BlockNumber, bytes _proof, address _proverAddress) payable` - functionCall: 2026-08-04 14:11 UTC - now; currently used; address: [0x6b9e81504e961a9CDf81A06e916720fb4c273e90](https://etherscan.io/address/0x6b9e81504e961a9CDf81A06e916720fb4c273e90); selector: 0x82ecf2f6; signature: `function create(uint32 _gameType, bytes32 _rootClaim, bytes _extraData) payable returns (address proxy_)` ## Data posted This section shows how much data the project publishes to Ethereum over time. It leaves out data posted to other data-availability (DA) layers. The project currently posts data to [Ethereum](https://l2beat.com/projects/ethereum). The interactive data posted chart is shown on [the HTML page](https://l2beat.com/layer2s/projects/zircuit#data-posted). ### Tracked transactions #### Blob submissions - DA layer Ethereum: from block 20219939 to 25682284; historical; inbox: [0xFF00000000000000000000000000000000048900](https://etherscan.io/address/0xFF00000000000000000000000000000000048900); sequencers: [0xAF1E4f6a47af647F87C0Ec814d8032C4a4bFF145](https://etherscan.io/address/0xAF1E4f6a47af647F87C0Ec814d8032C4a4bFF145) - DA layer Ethereum: from block 25682284 to now; currently used; inbox: [0xFF00000000000000000000000000000000048900](https://etherscan.io/address/0xFF00000000000000000000000000000000048900); sequencers: [0xCf8225801DF6Ef90aD3bc86808F574403A309de8](https://etherscan.io/address/0xCf8225801DF6Ef90aD3bc86808F574403A309de8) ## Liveness This section shows how "live" the project's operators are by displaying how frequently they submit transactions of the selected type. It also highlights anomalies - significant deviations from their typical schedule. No ongoing anomalies detected. The interactive liveness chart is shown on [the HTML page](https://l2beat.com/layer2s/projects/zircuit#liveness). ### Tracked transactions #### Batch submissions - transfer: 2024-07-02 16:03 UTC - 2026-08-04 14:55 UTC; historical; from: [0xAF1E4f6a47af647F87C0Ec814d8032C4a4bFF145](https://etherscan.io/address/0xAF1E4f6a47af647F87C0Ec814d8032C4a4bFF145); to: [0xFF00000000000000000000000000000000048900](https://etherscan.io/address/0xFF00000000000000000000000000000000048900) - transfer: 2026-08-04 14:55 UTC - now; currently used; from: [0xCf8225801DF6Ef90aD3bc86808F574403A309de8](https://etherscan.io/address/0xCf8225801DF6Ef90aD3bc86808F574403A309de8); to: [0xFF00000000000000000000000000000000048900](https://etherscan.io/address/0xFF00000000000000000000000000000000048900) #### Proof submissions - functionCall: 2025-03-11 01:01 UTC - 2025-08-25 18:54 UTC; historical; address: [0x92Ef6Af472b39F1b363da45E35530c24619245A4](https://etherscan.io/address/0x92Ef6Af472b39F1b363da45E35530c24619245A4); selector: 0x1bf75d29; signature: `function proposeL2OutputV2(uint256 _batchIndex, bytes32 _batchHash, bytes32 _poseidonPostStateRoot, bytes32 _outputRoot, uint256 _l2BlockNumber, bytes32 _l1BlockHash, uint256 _l1BlockNumber, bytes _aggrProof) payable` - functionCall: 2025-08-25 18:54 UTC - 2025-11-24 20:55 UTC; historical; address: [0x92Ef6Af472b39F1b363da45E35530c24619245A4](https://etherscan.io/address/0x92Ef6Af472b39F1b363da45E35530c24619245A4); selector: 0x76340d0a; signature: `function proposeL2OutputV3(bytes32 _outputRoot, uint256 _l2BlockNumber, uint256 _l1BlockNumber, bytes _proof, address _proverAddress) payable` - functionCall: 2025-11-24 20:55 UTC - 2026-08-04 14:11 UTC; historical; address: [0x92Ef6Af472b39F1b363da45E35530c24619245A4](https://etherscan.io/address/0x92Ef6Af472b39F1b363da45E35530c24619245A4); selector: 0x2685d148; signature: `function proposeL2OutputV3(bytes32 _outputRoot, uint64 _claimNonce, address _claimSenderAddress, uint256 _l2BlockNumber, uint256 _l1BlockNumber, bytes _proof, address _proverAddress) payable` - functionCall: 2026-08-04 14:11 UTC - now; currently used; address: [0x6b9e81504e961a9CDf81A06e916720fb4c273e90](https://etherscan.io/address/0x6b9e81504e961a9CDf81A06e916720fb4c273e90); selector: 0x82ecf2f6; signature: `function create(uint32 _gameType, bytes32 _rootClaim, bytes _extraData) payable returns (address proxy_)` #### State updates - functionCall: 2024-07-05 00:00 UTC - 2025-03-11 01:01 UTC; historical; address: [0x92Ef6Af472b39F1b363da45E35530c24619245A4](https://etherscan.io/address/0x92Ef6Af472b39F1b363da45E35530c24619245A4); selector: 0xa9efd6b8; signature: `function proposeL2Output(bytes32 _outputRoot, uint256 _l2BlockNumber, bytes32 _l1Blockhash, uint256 _l1BlockNumber, bytes _proof)` - functionCall: 2025-03-11 01:01 UTC - 2025-08-25 18:54 UTC; historical; address: [0x92Ef6Af472b39F1b363da45E35530c24619245A4](https://etherscan.io/address/0x92Ef6Af472b39F1b363da45E35530c24619245A4); selector: 0x1bf75d29; signature: `function proposeL2OutputV2(uint256 _batchIndex, bytes32 _batchHash, bytes32 _poseidonPostStateRoot, bytes32 _outputRoot, uint256 _l2BlockNumber, bytes32 _l1BlockHash, uint256 _l1BlockNumber, bytes _aggrProof) payable` - functionCall: 2025-08-25 18:54 UTC - 2025-11-24 20:55 UTC; historical; address: [0x92Ef6Af472b39F1b363da45E35530c24619245A4](https://etherscan.io/address/0x92Ef6Af472b39F1b363da45E35530c24619245A4); selector: 0x76340d0a; signature: `function proposeL2OutputV3(bytes32 _outputRoot, uint256 _l2BlockNumber, uint256 _l1BlockNumber, bytes _proof, address _proverAddress) payable` - functionCall: 2025-11-24 20:55 UTC - 2026-08-04 14:11 UTC; historical; address: [0x92Ef6Af472b39F1b363da45E35530c24619245A4](https://etherscan.io/address/0x92Ef6Af472b39F1b363da45E35530c24619245A4); selector: 0x2685d148; signature: `function proposeL2OutputV3(bytes32 _outputRoot, uint64 _claimNonce, address _claimSenderAddress, uint256 _l2BlockNumber, uint256 _l1BlockNumber, bytes _proof, address _proverAddress) payable` - functionCall: 2026-08-04 14:11 UTC - now; currently used; address: [0x6b9e81504e961a9CDf81A06e916720fb4c273e90](https://etherscan.io/address/0x6b9e81504e961a9CDf81A06e916720fb4c273e90); selector: 0x82ecf2f6; signature: `function create(uint32 _gameType, bytes32 _rootClaim, bytes _extraData) payable returns (address proxy_)` ### Last 30 day anomalies All liveness anomalies detected for this project in the last 30 days, helping you review recent downtime and availability issues. - No tx data submissions were performed for 3h (from 2026-10-07 12:42 UTC until 2026-10-07 15:42 UTC). These typically occur every 7m 42s on average. - No tx data submissions were performed for 2h 59m (from 2026-10-07 09:42 UTC until 2026-10-07 12:42 UTC). These typically occur every 7m 42s on average. - No tx data submissions were performed for 3h (from 2026-10-07 06:42 UTC until 2026-10-07 09:42 UTC). These typically occur every 7m 42s on average. ## Milestones & Incidents - 2026-08-04: [Migrated to Conduit fault proofs](https://www.conduit.xyz). Zircuit migrates to a standard OP Stack PermissionedDisputeGame deployment via Conduit. - 2025-08-25: [Proof system migrated to SP1](https://zircuit.com/blog). Zircuit deprecates its in-house proof system in favor of SP1. - 2025-08-05: [Escape mechanism](https://www.zircuit.com/blog/mainnet-phase-1-is-live). Zircuit introduces a custom escape mechanism. - 2024-08-05: [Mainnet Launch](https://www.zircuit.com/blog/mainnet-phase-1-is-live). Zircuit is live on mainnet. ## Risk summary **Warning:** The fault proof system is deployed but is not functional. The chain ID is not included in the superchain registry snapshot embedded in the op-program release that the dispute games commit to, causing the dispute game to panic during execution. Security relies entirely on the permissioned proposer and challengers. ### Funds can be stolen if 1. a contract receives a malicious code upgrade. There is no delay on code upgrades (CRITICAL), 2. no whitelisted challenger disputes an invalid state root before the challenge window expires (CRITICAL). ### MEV can be extracted if 3. the operator exploits their centralized position and frontruns user transactions. ## Risk analysis **Warning:** The fault proof system is deployed but is not functional. The chain ID is not included in the superchain registry snapshot embedded in the op-program release that the dispute games commit to, causing the dispute game to panic during execution. Security relies entirely on the permissioned proposer and challengers. ### Sequencer failure Self sequence (12h delay; sentiment: good) In the event of a sequencer failure, users can force transactions to be included in the project's chain by sending them to L1. There can be up to a 12h delay on this operation. ### State validation Fraud proofs (INT) (3d 12h challenge period + 3d 12h execution delay; sentiment: bad) Fraud proofs allow actors watching the chain to prove that the state is incorrect. Interactive proofs (INT) require multiple transactions over time to resolve. Only one entity is currently allowed to propose and submit challenges, as only permissioned games are currently allowed. ### Data availability Onchain (sentiment: good) All of the data needed for proof construction is published on Ethereum L1. ### Exit window None (sentiment: bad) There is no window for users to exit in case of an unwanted upgrade since contracts are instantly upgradable. ### Proposer failure Cannot withdraw (sentiment: bad) Only the whitelisted proposers can publish state roots on L1, so in the event of failure the withdrawals are frozen. ## Stage Zircuit is not even a Stage 0 project. ### Stage 0 1 issue needs fixing. - Met: A complete and functional proof system is deployed. - Met: The project calls itself a rollup. - Met: State roots are posted to Ethereum L1. - Met: Inputs for the state transition function are posted to Ethereum L1. - Met: A source-available node exists that can recreate the state from Ethereum L1 data. Please note that the L2BEAT team has not verified the validity of the node source code. [View code](https://github.com/zircuit-labs/l2-geth-public) - Issue: Fraud proof submission is not sufficiently decentralized. ### Stage 1 4 issues need fixing. **Principle** - Issue: Compromising ≥75% of the Security Council should be the only way (other than bugs) for a rollup to indefinitely block an L2→L1 message (e.g. a withdrawal) or push an invalid L2→L1 message (e.g. an invalid withdrawal) with a <7d exit window. **Guidelines** - Issue: Users' withdrawals can be censored by the permissioned operators. - Issue: Upgrades executed by actors with more centralized control than a Security Council provide less than 7d for users to exit if the permissioned operator is down or censoring. - Issue: The Security Council is not properly set up. ### Stage 2 3 issues need fixing. - Issue: Fraud proof submission is open only to whitelisted actors. - Issue: Upgrades unrelated to onchain provable bugs provide less than 30d to exit. - Issue: The Security Council's actions are not confined to onchain provable bugs. [Learn more about Stages](https://l2beat.com/stages). Please keep in mind that these stages do not reflect project security, this is an opinionated assessment of project maturity based on subjective criteria, created with a goal of incentivizing projects to push toward better decentralization. Each team may have taken different paths to achieve this goal. ## Data availability ### All data required for proofs is published on chain All the data that is used to construct the system state is published on chain in the form of cheap blobs or calldata. This ensures that it will be available for enough time. **References** - [Derivation: Batch submission - OP Mainnet specs](https://github.com/ethereum-optimism/specs/blob/main/specs/protocol/derivation.md#batch-submission) - [BatchInbox - address](https://explorer.zircuit.com/address/0xFF00000000000000000000000000000000048900#code) - [OptimismPortal2.sol - source code, depositTransaction function](https://explorer.zircuit.com/address/0xe89F13c5ee4033B2D3cD76C9d6958eFBfe26D3C2#code) Learn more about the DA layer here: [Ethereum](https://l2beat.com/projects/ethereum) ## State validation Updates to the system state can be proposed and challenged by permissioned operators only. If a state root passes the challenge period, it is optimistically considered correct and made actionable for withdrawals. ### State root proposals Proposers submit state roots as children of the latest confirmed state root (called anchor state), by calling the `create` function in the DisputeGameFactory. A state root can have multiple conflicting children. Each proposal requires a stake, currently set to 0.0 ETH, that can be slashed if the proposal is proven incorrect via a fraud proof. Stakes can be withdrawn only after the proposal has been confirmed. A state root gets confirmed if the challenge period has passed and it is not countered. **Risks** - Funds can be stolen if no whitelisted challenger disputes an invalid state root before the challenge window expires (CRITICAL). **References** - [OP stack specification: Fault Dispute Game](https://specs.optimism.io/fault-proof/stage-one/fault-dispute-game.html#fault-dispute-game) ### Challenges Challenges are opened to disprove invalid state roots using bisection games. Each bisection move requires a stake that increases expontentially with the depth of the bisection, with a factor of 1.09493. The maximum depth is 73, and reaching it therefore requires a cumulative stake of 0.00 ETH from depth 0. Actors can participate in any challenge by calling the `defend` or `attack` functions, depending whether they agree or disagree with the latest claim and want to move the bisection game forward. Actors that disagree with the top-level claim are called challengers, and actors that agree are called defenders. Each actor might be involved in multiple (sub-)challenges at the same time, meaning that the protocol operates with [full concurrency](https://medium.com/l2beat/fraud-proof-wars-b0cb4d0f452a). Challengers and defenders alternate in the bisection game, and they pass each other a clock that starts with 3d 12h. If a clock expires, the claim is considered defeated if it was countered, or it gets confirmed if uncountered. Since honest parties can inherit clocks from malicious parties that play both as challengers and defenders (see [freeloader claims](https://specs.optimism.io/fault-proof/stage-one/fault-dispute-game.html#freeloader-claims)), an inherited clock with too little time remaining is generally extended by 3h. The extension is 6h when the next claim is immediately before split depth 30, and 1d 3h (the standard extension plus the 1d oracle challenge period) immediately before the last depth. Along a full-depth path, cumulative extensions can therefore add up to 10d 3h. Since unconfirmed state roots are independent of one another, users can decide to exit with a subsequent confirmed state root if the previous one is delayed. Winners get the entire losers' stake, meaning that sybils can potentially play against each other at no cost. The final instruction found via the bisection game is then executed onchain in the MIPS one step prover contract who determines the winner. The protocol does not enforce valid bisections, meaning that actors can propose correct initial claims and then provide incorrect midpoints. The protocol can be subject to resource exhaustion attacks ([Spearbit 5.1.3](https://github.com/ethereum-optimism/optimism/blob/develop/docs/security-reviews/2024_08_Fault-Proofs-No-MIPS_Spearbit.pdf)). **References** - [Fraud Proof Wars: OPFP](https://medium.com/l2beat/fraud-proof-wars-b0cb4d0f452a) ## Upgrades & Governance ### Past upgrades The metrics include upgrades on the currently used proxy contracts. Historical proxy contracts and changes of such are not included. - Count of upgrades: 106 - Last upgrade: 23d 8h ago - Avg upgrade interval: 1mo 22d - 2026-09-23 16:00 UTC, deployment of [L2ProxyAdmin](https://explorer.zircuit.com/address/0x4200000000000000000000000000000000000018#code): transaction [0x48aa8d6a9d281bf0eaa204e895acdfe0ba38640c34f6d133b2f4ecb879f5c72c](https://explorer.zircuit.com/tx/0x48aa8d6a9d281bf0eaa204e895acdfe0ba38640c34f6d133b2f4ecb879f5c72c), implementations: [0x893c2CEEb71D38514daF67728d3Ff1b213FC4B5F](https://explorer.zircuit.com/address/0x893c2CEEb71D38514daF67728d3Ff1b213FC4B5F#code) - 2026-09-17 09:31 UTC, upgrade of [OptimismPortal2](https://etherscan.io/address/0x17bfAfA932d2e23Bd9B909Fd5B4D2e2a27043fb1#code): transaction [0x4f58067dd453c8a1bcf79ecca906ec4148586a00bab8b68621c88ad97fea3dbc](https://etherscan.io/tx/0x4f58067dd453c8a1bcf79ecca906ec4148586a00bab8b68621c88ad97fea3dbc), implementations: [0x97cEbbf8959e2A5476fbe9B98A21806Ec234609B](https://etherscan.io/address/0x97cEbbf8959e2A5476fbe9B98A21806Ec234609B#code) ([diff](https://disco.l2beat.com/diff/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8/eth:0x97cEbbf8959e2A5476fbe9B98A21806Ec234609B)) - 2026-09-17 09:31 UTC, upgrade of [OptimismPortal2](https://etherscan.io/address/0x17bfAfA932d2e23Bd9B909Fd5B4D2e2a27043fb1#code): transaction [0x4f58067dd453c8a1bcf79ecca906ec4148586a00bab8b68621c88ad97fea3dbc](https://etherscan.io/tx/0x4f58067dd453c8a1bcf79ecca906ec4148586a00bab8b68621c88ad97fea3dbc), implementations: [0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8](https://etherscan.io/address/0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8#code) ([diff](https://disco.l2beat.com/diff/eth:0xe89F13c5ee4033B2D3cD76C9d6958eFBfe26D3C2/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8)) - 2026-09-17 09:31 UTC, upgrade of [OptimismPortal2](https://etherscan.io/address/0x17bfAfA932d2e23Bd9B909Fd5B4D2e2a27043fb1#code): transaction [0x4f58067dd453c8a1bcf79ecca906ec4148586a00bab8b68621c88ad97fea3dbc](https://etherscan.io/tx/0x4f58067dd453c8a1bcf79ecca906ec4148586a00bab8b68621c88ad97fea3dbc), implementations: [0xe89F13c5ee4033B2D3cD76C9d6958eFBfe26D3C2](https://etherscan.io/address/0xe89F13c5ee4033B2D3cD76C9d6958eFBfe26D3C2#code) ([diff](https://disco.l2beat.com/diff/eth:0x7Cf803296662e8C72A6C1d6450572209aCF7f202/eth:0xe89F13c5ee4033B2D3cD76C9d6958eFBfe26D3C2)) - 2026-09-17 09:31 UTC, upgrade of [SystemConfig](https://etherscan.io/address/0x30F82a1Ca89226E8b8815d6EbB728e3b18a428ff#code): transaction [0x4f58067dd453c8a1bcf79ecca906ec4148586a00bab8b68621c88ad97fea3dbc](https://etherscan.io/tx/0x4f58067dd453c8a1bcf79ecca906ec4148586a00bab8b68621c88ad97fea3dbc), implementations: [0xd392c27B84b1cA776528F2704BC67B82a62132d2](https://etherscan.io/address/0xd392c27B84b1cA776528F2704BC67B82a62132d2#code) ([diff](https://disco.l2beat.com/diff/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8/eth:0xd392c27B84b1cA776528F2704BC67B82a62132d2)) - 2026-09-17 09:31 UTC, upgrade of [SystemConfig](https://etherscan.io/address/0x30F82a1Ca89226E8b8815d6EbB728e3b18a428ff#code): transaction [0x4f58067dd453c8a1bcf79ecca906ec4148586a00bab8b68621c88ad97fea3dbc](https://etherscan.io/tx/0x4f58067dd453c8a1bcf79ecca906ec4148586a00bab8b68621c88ad97fea3dbc), implementations: [0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8](https://etherscan.io/address/0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8#code) ([diff](https://disco.l2beat.com/diff/eth:0x42Ad0173051225Ac784100e9acD43349707F4db9/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8)) - 2026-09-17 09:31 UTC, upgrade of [SystemConfig](https://etherscan.io/address/0x30F82a1Ca89226E8b8815d6EbB728e3b18a428ff#code): transaction [0x4f58067dd453c8a1bcf79ecca906ec4148586a00bab8b68621c88ad97fea3dbc](https://etherscan.io/tx/0x4f58067dd453c8a1bcf79ecca906ec4148586a00bab8b68621c88ad97fea3dbc), implementations: [0x42Ad0173051225Ac784100e9acD43349707F4db9](https://etherscan.io/address/0x42Ad0173051225Ac784100e9acD43349707F4db9#code) ([diff](https://disco.l2beat.com/diff/eth:0x2fA28989fc559836E9d66dFf3010C7F7f41c65ED/eth:0x42Ad0173051225Ac784100e9acD43349707F4db9)) - 2026-09-17 09:31 UTC, upgrade of [DisputeGameFactory](https://etherscan.io/address/0x6b9e81504e961a9CDf81A06e916720fb4c273e90#code): transaction [0x4f58067dd453c8a1bcf79ecca906ec4148586a00bab8b68621c88ad97fea3dbc](https://etherscan.io/tx/0x4f58067dd453c8a1bcf79ecca906ec4148586a00bab8b68621c88ad97fea3dbc), implementations: [0xc040F392E52Cb6970CA8E110c280fE24E07C5e2c](https://etherscan.io/address/0xc040F392E52Cb6970CA8E110c280fE24E07C5e2c#code) ([diff](https://disco.l2beat.com/diff/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8/eth:0xc040F392E52Cb6970CA8E110c280fE24E07C5e2c)) - 2026-09-17 09:31 UTC, upgrade of [DisputeGameFactory](https://etherscan.io/address/0x6b9e81504e961a9CDf81A06e916720fb4c273e90#code): transaction [0x4f58067dd453c8a1bcf79ecca906ec4148586a00bab8b68621c88ad97fea3dbc](https://etherscan.io/tx/0x4f58067dd453c8a1bcf79ecca906ec4148586a00bab8b68621c88ad97fea3dbc), implementations: [0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8](https://etherscan.io/address/0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8#code) ([diff](https://disco.l2beat.com/diff/eth:0x72B971717E088B59F26d4236BE222ADB6ACD393b/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8)) - 2026-09-17 09:31 UTC, upgrade of [DisputeGameFactory](https://etherscan.io/address/0x6b9e81504e961a9CDf81A06e916720fb4c273e90#code): transaction [0x4f58067dd453c8a1bcf79ecca906ec4148586a00bab8b68621c88ad97fea3dbc](https://etherscan.io/tx/0x4f58067dd453c8a1bcf79ecca906ec4148586a00bab8b68621c88ad97fea3dbc), implementations: [0x72B971717E088B59F26d4236BE222ADB6ACD393b](https://etherscan.io/address/0x72B971717E088B59F26d4236BE222ADB6ACD393b#code) ([diff](https://disco.l2beat.com/diff/eth:0x74Fac1D45B98bae058F8F566201c9A81B85C7D50/eth:0x72B971717E088B59F26d4236BE222ADB6ACD393b)) - 2026-09-17 09:31 UTC, upgrade of [L1CrossDomainMessenger](https://etherscan.io/address/0x2a721cBE81a128be0F01040e3353c3805A5EA091#code): transaction [0x4f58067dd453c8a1bcf79ecca906ec4148586a00bab8b68621c88ad97fea3dbc](https://etherscan.io/tx/0x4f58067dd453c8a1bcf79ecca906ec4148586a00bab8b68621c88ad97fea3dbc), implementations: [0xb686F13AfF1e427a1f993F29ab0F2E7383729FE0](https://etherscan.io/address/0xb686F13AfF1e427a1f993F29ab0F2E7383729FE0#code) ([diff](https://disco.l2beat.com/diff/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8/eth:0xb686F13AfF1e427a1f993F29ab0F2E7383729FE0)) - 2026-09-17 09:31 UTC, upgrade of [L1CrossDomainMessenger](https://etherscan.io/address/0x2a721cBE81a128be0F01040e3353c3805A5EA091#code): transaction [0x4f58067dd453c8a1bcf79ecca906ec4148586a00bab8b68621c88ad97fea3dbc](https://etherscan.io/tx/0x4f58067dd453c8a1bcf79ecca906ec4148586a00bab8b68621c88ad97fea3dbc), implementations: [0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8](https://etherscan.io/address/0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8#code) ([diff](https://disco.l2beat.com/diff/eth:0x59D497530b00062f40950ba8EaB88868bf7F86f0/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8)) - 2026-09-17 09:31 UTC, upgrade of [L1CrossDomainMessenger](https://etherscan.io/address/0x2a721cBE81a128be0F01040e3353c3805A5EA091#code): transaction [0x4f58067dd453c8a1bcf79ecca906ec4148586a00bab8b68621c88ad97fea3dbc](https://etherscan.io/tx/0x4f58067dd453c8a1bcf79ecca906ec4148586a00bab8b68621c88ad97fea3dbc), implementations: [0x59D497530b00062f40950ba8EaB88868bf7F86f0](https://etherscan.io/address/0x59D497530b00062f40950ba8EaB88868bf7F86f0#code) ([diff](https://disco.l2beat.com/diff/eth:0xb686F13AfF1e427a1f993F29ab0F2E7383729FE0/eth:0x59D497530b00062f40950ba8EaB88868bf7F86f0)) - 2026-09-17 09:31 UTC, upgrade of [L1StandardBridge](https://etherscan.io/address/0x386B76D9cA5F5Fb150B6BFB35CF5379B22B26dd8#code): transaction [0x4f58067dd453c8a1bcf79ecca906ec4148586a00bab8b68621c88ad97fea3dbc](https://etherscan.io/tx/0x4f58067dd453c8a1bcf79ecca906ec4148586a00bab8b68621c88ad97fea3dbc), implementations: [0x61525EaaCDdB97D9184aFc205827E6A4fd0Bf62A](https://etherscan.io/address/0x61525EaaCDdB97D9184aFc205827E6A4fd0Bf62A#code) ([diff](https://disco.l2beat.com/diff/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8/eth:0x61525EaaCDdB97D9184aFc205827E6A4fd0Bf62A)) - 2026-09-17 09:31 UTC, upgrade of [L1StandardBridge](https://etherscan.io/address/0x386B76D9cA5F5Fb150B6BFB35CF5379B22B26dd8#code): transaction [0x4f58067dd453c8a1bcf79ecca906ec4148586a00bab8b68621c88ad97fea3dbc](https://etherscan.io/tx/0x4f58067dd453c8a1bcf79ecca906ec4148586a00bab8b68621c88ad97fea3dbc), implementations: [0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8](https://etherscan.io/address/0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8#code) ([diff](https://disco.l2beat.com/diff/eth:0xB37a11AadF167B2F0b8dD85372De4bC66CD4A891/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8)) - 2026-09-17 09:31 UTC, upgrade of [L1StandardBridge](https://etherscan.io/address/0x386B76D9cA5F5Fb150B6BFB35CF5379B22B26dd8#code): transaction [0x4f58067dd453c8a1bcf79ecca906ec4148586a00bab8b68621c88ad97fea3dbc](https://etherscan.io/tx/0x4f58067dd453c8a1bcf79ecca906ec4148586a00bab8b68621c88ad97fea3dbc), implementations: [0xB37a11AadF167B2F0b8dD85372De4bC66CD4A891](https://etherscan.io/address/0xB37a11AadF167B2F0b8dD85372De4bC66CD4A891#code) ([diff](https://disco.l2beat.com/diff/eth:0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC/eth:0xB37a11AadF167B2F0b8dD85372De4bC66CD4A891)) - 2026-09-17 09:31 UTC, upgrade of [L1ERC721Bridge](https://etherscan.io/address/0x994eEb321F9cD79B077a5455fC248c77f30Dd244#code): transaction [0x4f58067dd453c8a1bcf79ecca906ec4148586a00bab8b68621c88ad97fea3dbc](https://etherscan.io/tx/0x4f58067dd453c8a1bcf79ecca906ec4148586a00bab8b68621c88ad97fea3dbc), implementations: [0x74f1aC50EB0BE98853805D381C884f5f9abDEcf9](https://etherscan.io/address/0x74f1aC50EB0BE98853805D381C884f5f9abDEcf9#code) ([diff](https://disco.l2beat.com/diff/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8/eth:0x74f1aC50EB0BE98853805D381C884f5f9abDEcf9)) - 2026-09-17 09:31 UTC, upgrade of [L1ERC721Bridge](https://etherscan.io/address/0x994eEb321F9cD79B077a5455fC248c77f30Dd244#code): transaction [0x4f58067dd453c8a1bcf79ecca906ec4148586a00bab8b68621c88ad97fea3dbc](https://etherscan.io/tx/0x4f58067dd453c8a1bcf79ecca906ec4148586a00bab8b68621c88ad97fea3dbc), implementations: [0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8](https://etherscan.io/address/0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8#code) ([diff](https://disco.l2beat.com/diff/eth:0x9F164f1d02A81e06D639E55F65a87f0070E3Cb2e/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8)) - 2026-09-17 09:31 UTC, upgrade of [L1ERC721Bridge](https://etherscan.io/address/0x994eEb321F9cD79B077a5455fC248c77f30Dd244#code): transaction [0x4f58067dd453c8a1bcf79ecca906ec4148586a00bab8b68621c88ad97fea3dbc](https://etherscan.io/tx/0x4f58067dd453c8a1bcf79ecca906ec4148586a00bab8b68621c88ad97fea3dbc), implementations: [0x9F164f1d02A81e06D639E55F65a87f0070E3Cb2e](https://etherscan.io/address/0x9F164f1d02A81e06D639E55F65a87f0070E3Cb2e#code) ([diff](https://disco.l2beat.com/diff/eth:0x74f1aC50EB0BE98853805D381C884f5f9abDEcf9/eth:0x9F164f1d02A81e06D639E55F65a87f0070E3Cb2e)) - 2026-09-17 09:31 UTC, upgrade of [AnchorStateRegistry](https://etherscan.io/address/0x2613d77fFBE105CA861D526061dC3ef191E17051#code): transaction [0x4f58067dd453c8a1bcf79ecca906ec4148586a00bab8b68621c88ad97fea3dbc](https://etherscan.io/tx/0x4f58067dd453c8a1bcf79ecca906ec4148586a00bab8b68621c88ad97fea3dbc), implementations: [0x36398155Cd17cfe804F69b233eDDA800DD4D5aA5](https://etherscan.io/address/0x36398155Cd17cfe804F69b233eDDA800DD4D5aA5#code) ([diff](https://disco.l2beat.com/diff/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8/eth:0x36398155Cd17cfe804F69b233eDDA800DD4D5aA5)) - 2026-09-17 09:31 UTC, upgrade of [AnchorStateRegistry](https://etherscan.io/address/0x2613d77fFBE105CA861D526061dC3ef191E17051#code): transaction [0x4f58067dd453c8a1bcf79ecca906ec4148586a00bab8b68621c88ad97fea3dbc](https://etherscan.io/tx/0x4f58067dd453c8a1bcf79ecca906ec4148586a00bab8b68621c88ad97fea3dbc), implementations: [0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8](https://etherscan.io/address/0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8#code) ([diff](https://disco.l2beat.com/diff/eth:0x8F40Cc98D694AB986F026C5383A181FCc9B6B281/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8)) - 2026-09-17 09:31 UTC, upgrade of [AnchorStateRegistry](https://etherscan.io/address/0x2613d77fFBE105CA861D526061dC3ef191E17051#code): transaction [0x4f58067dd453c8a1bcf79ecca906ec4148586a00bab8b68621c88ad97fea3dbc](https://etherscan.io/tx/0x4f58067dd453c8a1bcf79ecca906ec4148586a00bab8b68621c88ad97fea3dbc), implementations: [0x8F40Cc98D694AB986F026C5383A181FCc9B6B281](https://etherscan.io/address/0x8F40Cc98D694AB986F026C5383A181FCc9B6B281#code) ([diff](https://disco.l2beat.com/diff/eth:0xeb69cC681E8D4a557b30DFFBAd85aFfD47a2CF2E/eth:0x8F40Cc98D694AB986F026C5383A181FCc9B6B281)) - 2026-09-17 09:31 UTC, upgrade of [DelayedWETH](https://etherscan.io/address/0x64555e021B913963e2D17de97efCc2723D3ec037#code): transaction [0x4f58067dd453c8a1bcf79ecca906ec4148586a00bab8b68621c88ad97fea3dbc](https://etherscan.io/tx/0x4f58067dd453c8a1bcf79ecca906ec4148586a00bab8b68621c88ad97fea3dbc), implementations: [0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8](https://etherscan.io/address/0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8#code) ([diff](https://disco.l2beat.com/diff/eth:0xE440CC08A71694C8229323803F59024E3144630e/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8)) - 2026-09-17 09:31 UTC, deployment of [DelayedWETH](https://etherscan.io/address/0x64555e021B913963e2D17de97efCc2723D3ec037#code): transaction [0x4f58067dd453c8a1bcf79ecca906ec4148586a00bab8b68621c88ad97fea3dbc](https://etherscan.io/tx/0x4f58067dd453c8a1bcf79ecca906ec4148586a00bab8b68621c88ad97fea3dbc), implementations: [0xE440CC08A71694C8229323803F59024E3144630e](https://etherscan.io/address/0xE440CC08A71694C8229323803F59024E3144630e#code) - 2026-09-17 09:31 UTC, upgrade of [OptimismMintableERC20Factory](https://etherscan.io/address/0xc77ece87C91C44AFb5f19638f9a0F75b5d90E932#code): transaction [0x4f58067dd453c8a1bcf79ecca906ec4148586a00bab8b68621c88ad97fea3dbc](https://etherscan.io/tx/0x4f58067dd453c8a1bcf79ecca906ec4148586a00bab8b68621c88ad97fea3dbc), implementations: [0x8ee6fB13c6c9a7e401531168E196Fbf8b05cEabB](https://etherscan.io/address/0x8ee6fB13c6c9a7e401531168E196Fbf8b05cEabB#code) ([diff](https://disco.l2beat.com/diff/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8/eth:0x8ee6fB13c6c9a7e401531168E196Fbf8b05cEabB)) - 2026-09-17 09:31 UTC, upgrade of [OptimismMintableERC20Factory](https://etherscan.io/address/0xc77ece87C91C44AFb5f19638f9a0F75b5d90E932#code): transaction [0x4f58067dd453c8a1bcf79ecca906ec4148586a00bab8b68621c88ad97fea3dbc](https://etherscan.io/tx/0x4f58067dd453c8a1bcf79ecca906ec4148586a00bab8b68621c88ad97fea3dbc), implementations: [0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8](https://etherscan.io/address/0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8#code) ([diff](https://disco.l2beat.com/diff/eth:0xaAbEA75Da509fA518Fd8a91Eae4BE5813B829b12/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8)) - 2026-09-17 09:31 UTC, upgrade of [OptimismMintableERC20Factory](https://etherscan.io/address/0xc77ece87C91C44AFb5f19638f9a0F75b5d90E932#code): transaction [0x4f58067dd453c8a1bcf79ecca906ec4148586a00bab8b68621c88ad97fea3dbc](https://etherscan.io/tx/0x4f58067dd453c8a1bcf79ecca906ec4148586a00bab8b68621c88ad97fea3dbc), implementations: [0xaAbEA75Da509fA518Fd8a91Eae4BE5813B829b12](https://etherscan.io/address/0xaAbEA75Da509fA518Fd8a91Eae4BE5813B829b12#code) ([diff](https://disco.l2beat.com/diff/eth:0x8ee6fB13c6c9a7e401531168E196Fbf8b05cEabB/eth:0xaAbEA75Da509fA518Fd8a91Eae4BE5813B829b12)) - 2026-09-15 16:30 UTC, upgrade of [L1Block](https://explorer.zircuit.com/address/0x4200000000000000000000000000000000000015#code): transaction [0xcd60191626fa3124e7031235c52f0adf6be545ebbd7cf55641bd9dabcbedaf6a](https://explorer.zircuit.com/tx/0xcd60191626fa3124e7031235c52f0adf6be545ebbd7cf55641bd9dabcbedaf6a), implementations: [0x3Ba4007f5C922FBb33C454B41ea7a1f11E83df2C](https://explorer.zircuit.com/address/0x3Ba4007f5C922FBb33C454B41ea7a1f11E83df2C#code) ([diff](https://disco.l2beat.com/diff/zircuit:0xe95F7EdfB4cbf87eD14d94913448d89282513d66/zircuit:0x3Ba4007f5C922FBb33C454B41ea7a1f11E83df2C)) - 2026-08-22 11:12 UTC, upgrade of [L1StandardBridge](https://etherscan.io/address/0x386B76D9cA5F5Fb150B6BFB35CF5379B22B26dd8#code): transaction [0xa2c6d7a895f7793beb83cd3f0734b427fea4982e2ed35044555c52bf3a8a8a23](https://etherscan.io/tx/0xa2c6d7a895f7793beb83cd3f0734b427fea4982e2ed35044555c52bf3a8a8a23), implementations: [0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC](https://etherscan.io/address/0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC#code) ([diff](https://disco.l2beat.com/diff/eth:0x61525EaaCDdB97D9184aFc205827E6A4fd0Bf62A/eth:0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC)) - 2026-08-22 11:12 UTC, upgrade of [L1StandardBridge](https://etherscan.io/address/0x386B76D9cA5F5Fb150B6BFB35CF5379B22B26dd8#code): transaction [0xa2c6d7a895f7793beb83cd3f0734b427fea4982e2ed35044555c52bf3a8a8a23](https://etherscan.io/tx/0xa2c6d7a895f7793beb83cd3f0734b427fea4982e2ed35044555c52bf3a8a8a23), implementations: [0x61525EaaCDdB97D9184aFc205827E6A4fd0Bf62A](https://etherscan.io/address/0x61525EaaCDdB97D9184aFc205827E6A4fd0Bf62A#code) ([diff](https://disco.l2beat.com/diff/eth:0x61525EaaCDdB97D9184aFc205827E6A4fd0Bf62A/eth:0x61525EaaCDdB97D9184aFc205827E6A4fd0Bf62A)) - 2026-08-13 13:32 UTC, upgrade of [SuperchainConfig](https://etherscan.io/address/0x097f99768A0a4a0A81bAbbCB1ea18193bA9D53cC#code): transaction [0x2c62c31e4108c24123b9f5b3c26a87e5ec6b4fc3b85163c7257edb523316f9db](https://etherscan.io/tx/0x2c62c31e4108c24123b9f5b3c26a87e5ec6b4fc3b85163c7257edb523316f9db), implementations: [0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8](https://etherscan.io/address/0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8#code) ([diff](https://disco.l2beat.com/diff/eth:0xE4F9779ab53070a55db24dFAeFf9AF147c6ED550/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8)) - 2026-08-13 13:32 UTC, upgrade of [SuperchainConfig](https://etherscan.io/address/0x097f99768A0a4a0A81bAbbCB1ea18193bA9D53cC#code): transaction [0x2c62c31e4108c24123b9f5b3c26a87e5ec6b4fc3b85163c7257edb523316f9db](https://etherscan.io/tx/0x2c62c31e4108c24123b9f5b3c26a87e5ec6b4fc3b85163c7257edb523316f9db), implementations: [0xE4F9779ab53070a55db24dFAeFf9AF147c6ED550](https://etherscan.io/address/0xE4F9779ab53070a55db24dFAeFf9AF147c6ED550#code) ([diff](https://disco.l2beat.com/diff/eth:0xb08Cc720F511062537ca78BdB0AE691F04F5a957/eth:0xE4F9779ab53070a55db24dFAeFf9AF147c6ED550)) - 2026-08-04 14:50 UTC, upgrade of [L1Block](https://explorer.zircuit.com/address/0x4200000000000000000000000000000000000015#code): transaction [0xd89e381f4e17d7226144ae90c4efef010f4f085afb76b191add65dcf51aef089](https://explorer.zircuit.com/tx/0xd89e381f4e17d7226144ae90c4efef010f4f085afb76b191add65dcf51aef089), implementations: [0xe95F7EdfB4cbf87eD14d94913448d89282513d66](https://explorer.zircuit.com/address/0xe95F7EdfB4cbf87eD14d94913448d89282513d66#code) ([diff](https://disco.l2beat.com/diff/zircuit:0xFf256497D61dcd71a9e9Ff43967C13fdE1F72D12/zircuit:0xe95F7EdfB4cbf87eD14d94913448d89282513d66)) - 2026-08-04 14:16 UTC, upgrade of [OptimismPortal2](https://etherscan.io/address/0x17bfAfA932d2e23Bd9B909Fd5B4D2e2a27043fb1#code): transaction [0xeb6b35d861c5b232c47bc0e604f0834975876f80181776e46cb486f7a398cf03](https://etherscan.io/tx/0xeb6b35d861c5b232c47bc0e604f0834975876f80181776e46cb486f7a398cf03), implementations: [0x7Cf803296662e8C72A6C1d6450572209aCF7f202](https://etherscan.io/address/0x7Cf803296662e8C72A6C1d6450572209aCF7f202#code) ([diff](https://disco.l2beat.com/diff/eth:0x381E729FF983FA4BCEd820e7b922d79bF653B999/eth:0x7Cf803296662e8C72A6C1d6450572209aCF7f202)) - 2026-08-04 14:16 UTC, upgrade of [SystemConfig](https://etherscan.io/address/0x30F82a1Ca89226E8b8815d6EbB728e3b18a428ff#code): transaction [0xeb6b35d861c5b232c47bc0e604f0834975876f80181776e46cb486f7a398cf03](https://etherscan.io/tx/0xeb6b35d861c5b232c47bc0e604f0834975876f80181776e46cb486f7a398cf03), implementations: [0x2fA28989fc559836E9d66dFf3010C7F7f41c65ED](https://etherscan.io/address/0x2fA28989fc559836E9d66dFf3010C7F7f41c65ED#code) ([diff](https://disco.l2beat.com/diff/eth:0x2bFE4A5Bd5A41e9d848d843ebCDFa15954e9A557/eth:0x2fA28989fc559836E9d66dFf3010C7F7f41c65ED)) - 2026-08-04 14:16 UTC, upgrade of [DisputeGameFactory](https://etherscan.io/address/0x6b9e81504e961a9CDf81A06e916720fb4c273e90#code): transaction [0xeb6b35d861c5b232c47bc0e604f0834975876f80181776e46cb486f7a398cf03](https://etherscan.io/tx/0xeb6b35d861c5b232c47bc0e604f0834975876f80181776e46cb486f7a398cf03), implementations: [0x74Fac1D45B98bae058F8F566201c9A81B85C7D50](https://etherscan.io/address/0x74Fac1D45B98bae058F8F566201c9A81B85C7D50#code) ([diff](https://disco.l2beat.com/diff/eth:0x33D1e8571a85a538ed3D5A4d88f46C112383439D/eth:0x74Fac1D45B98bae058F8F566201c9A81B85C7D50)) - 2026-08-04 14:16 UTC, upgrade of [L1CrossDomainMessenger](https://etherscan.io/address/0x2a721cBE81a128be0F01040e3353c3805A5EA091#code): transaction [0xeb6b35d861c5b232c47bc0e604f0834975876f80181776e46cb486f7a398cf03](https://etherscan.io/tx/0xeb6b35d861c5b232c47bc0e604f0834975876f80181776e46cb486f7a398cf03), implementations: [0xb686F13AfF1e427a1f993F29ab0F2E7383729FE0](https://etherscan.io/address/0xb686F13AfF1e427a1f993F29ab0F2E7383729FE0#code) ([diff](https://disco.l2beat.com/diff/eth:0x22D12E0FAebD62d429514A65EBAe32dd316c12D6/eth:0xb686F13AfF1e427a1f993F29ab0F2E7383729FE0)) - 2026-08-04 14:16 UTC, upgrade of [L1StandardBridge](https://etherscan.io/address/0x386B76D9cA5F5Fb150B6BFB35CF5379B22B26dd8#code): transaction [0xeb6b35d861c5b232c47bc0e604f0834975876f80181776e46cb486f7a398cf03](https://etherscan.io/tx/0xeb6b35d861c5b232c47bc0e604f0834975876f80181776e46cb486f7a398cf03), implementations: [0x61525EaaCDdB97D9184aFc205827E6A4fd0Bf62A](https://etherscan.io/address/0x61525EaaCDdB97D9184aFc205827E6A4fd0Bf62A#code) ([diff](https://disco.l2beat.com/diff/eth:0xe32B192fb1DcA88fCB1C56B3ACb429e32238aDCb/eth:0x61525EaaCDdB97D9184aFc205827E6A4fd0Bf62A)) - 2026-08-04 14:16 UTC, upgrade of [L1ERC721Bridge](https://etherscan.io/address/0x994eEb321F9cD79B077a5455fC248c77f30Dd244#code): transaction [0xeb6b35d861c5b232c47bc0e604f0834975876f80181776e46cb486f7a398cf03](https://etherscan.io/tx/0xeb6b35d861c5b232c47bc0e604f0834975876f80181776e46cb486f7a398cf03), implementations: [0x74f1aC50EB0BE98853805D381C884f5f9abDEcf9](https://etherscan.io/address/0x74f1aC50EB0BE98853805D381C884f5f9abDEcf9#code) ([diff](https://disco.l2beat.com/diff/eth:0x7f1d12fB2911EB095278085f721e644C1f675696/eth:0x74f1aC50EB0BE98853805D381C884f5f9abDEcf9)) - 2026-08-04 14:16 UTC, upgrade of [OptimismMintableERC20Factory](https://etherscan.io/address/0xc77ece87C91C44AFb5f19638f9a0F75b5d90E932#code): transaction [0xeb6b35d861c5b232c47bc0e604f0834975876f80181776e46cb486f7a398cf03](https://etherscan.io/tx/0xeb6b35d861c5b232c47bc0e604f0834975876f80181776e46cb486f7a398cf03), implementations: [0x8ee6fB13c6c9a7e401531168E196Fbf8b05cEabB](https://etherscan.io/address/0x8ee6fB13c6c9a7e401531168E196Fbf8b05cEabB#code) ([diff](https://disco.l2beat.com/diff/eth:0x5493f4677A186f64805fe7317D6993ba4863988F/eth:0x8ee6fB13c6c9a7e401531168E196Fbf8b05cEabB)) - 2026-08-04 14:16 UTC, upgrade of [SuperchainConfig](https://etherscan.io/address/0x097f99768A0a4a0A81bAbbCB1ea18193bA9D53cC#code): transaction [0xeb6b35d861c5b232c47bc0e604f0834975876f80181776e46cb486f7a398cf03](https://etherscan.io/tx/0xeb6b35d861c5b232c47bc0e604f0834975876f80181776e46cb486f7a398cf03), implementations: [0xb08Cc720F511062537ca78BdB0AE691F04F5a957](https://etherscan.io/address/0xb08Cc720F511062537ca78BdB0AE691F04F5a957#code) ([diff](https://disco.l2beat.com/diff/eth:0xCe28685EB204186b557133766eCA00334EB441E4/eth:0xb08Cc720F511062537ca78BdB0AE691F04F5a957)) - 2026-08-04 14:11 UTC, upgrade of [OptimismPortal2](https://etherscan.io/address/0x17bfAfA932d2e23Bd9B909Fd5B4D2e2a27043fb1#code): transaction [0xf7dd2207111f0f269b7cdfa8a7fa703b664585513bc113e0d2c8bc7ce9eb355f](https://etherscan.io/tx/0xf7dd2207111f0f269b7cdfa8a7fa703b664585513bc113e0d2c8bc7ce9eb355f), implementations: [0x381E729FF983FA4BCEd820e7b922d79bF653B999](https://etherscan.io/address/0x381E729FF983FA4BCEd820e7b922d79bF653B999#code) ([diff](https://disco.l2beat.com/diff/eth:0xB443Da3e07052204A02d630a8933dAc05a0d6fB4/eth:0x381E729FF983FA4BCEd820e7b922d79bF653B999)) - 2026-08-04 14:11 UTC, upgrade of [SystemConfig](https://etherscan.io/address/0x30F82a1Ca89226E8b8815d6EbB728e3b18a428ff#code): transaction [0xf7dd2207111f0f269b7cdfa8a7fa703b664585513bc113e0d2c8bc7ce9eb355f](https://etherscan.io/tx/0xf7dd2207111f0f269b7cdfa8a7fa703b664585513bc113e0d2c8bc7ce9eb355f), implementations: [0x2bFE4A5Bd5A41e9d848d843ebCDFa15954e9A557](https://etherscan.io/address/0x2bFE4A5Bd5A41e9d848d843ebCDFa15954e9A557#code) ([diff](https://disco.l2beat.com/diff/eth:0x340f923E5c7cbB2171146f64169EC9d5a9FfE647/eth:0x2bFE4A5Bd5A41e9d848d843ebCDFa15954e9A557)) - 2026-08-04 14:11 UTC, upgrade of [DisputeGameFactory](https://etherscan.io/address/0x6b9e81504e961a9CDf81A06e916720fb4c273e90#code): transaction [0xf7dd2207111f0f269b7cdfa8a7fa703b664585513bc113e0d2c8bc7ce9eb355f](https://etherscan.io/tx/0xf7dd2207111f0f269b7cdfa8a7fa703b664585513bc113e0d2c8bc7ce9eb355f), implementations: [0x33D1e8571a85a538ed3D5A4d88f46C112383439D](https://etherscan.io/address/0x33D1e8571a85a538ed3D5A4d88f46C112383439D#code) ([diff](https://disco.l2beat.com/diff/eth:0x4bbA758F006Ef09402eF31724203F316ab74e4a0/eth:0x33D1e8571a85a538ed3D5A4d88f46C112383439D)) - 2026-08-04 14:11 UTC, upgrade of [L1CrossDomainMessenger](https://etherscan.io/address/0x2a721cBE81a128be0F01040e3353c3805A5EA091#code): transaction [0xf7dd2207111f0f269b7cdfa8a7fa703b664585513bc113e0d2c8bc7ce9eb355f](https://etherscan.io/tx/0xf7dd2207111f0f269b7cdfa8a7fa703b664585513bc113e0d2c8bc7ce9eb355f), implementations: [0x22D12E0FAebD62d429514A65EBAe32dd316c12D6](https://etherscan.io/address/0x22D12E0FAebD62d429514A65EBAe32dd316c12D6#code) ([diff](https://disco.l2beat.com/diff/eth:0x5D5a095665886119693F0B41d8DFeE78da033e8B/eth:0x22D12E0FAebD62d429514A65EBAe32dd316c12D6)) - 2026-08-04 14:11 UTC, upgrade of [L1StandardBridge](https://etherscan.io/address/0x386B76D9cA5F5Fb150B6BFB35CF5379B22B26dd8#code): transaction [0xf7dd2207111f0f269b7cdfa8a7fa703b664585513bc113e0d2c8bc7ce9eb355f](https://etherscan.io/tx/0xf7dd2207111f0f269b7cdfa8a7fa703b664585513bc113e0d2c8bc7ce9eb355f), implementations: [0xe32B192fb1DcA88fCB1C56B3ACb429e32238aDCb](https://etherscan.io/address/0xe32B192fb1DcA88fCB1C56B3ACb429e32238aDCb#code) ([diff](https://disco.l2beat.com/diff/eth:0x0b09ba359A106C9ea3b181CBc5F394570c7d2a7A/eth:0xe32B192fb1DcA88fCB1C56B3ACb429e32238aDCb)) - 2026-08-04 14:11 UTC, upgrade of [L1ERC721Bridge](https://etherscan.io/address/0x994eEb321F9cD79B077a5455fC248c77f30Dd244#code): transaction [0xf7dd2207111f0f269b7cdfa8a7fa703b664585513bc113e0d2c8bc7ce9eb355f](https://etherscan.io/tx/0xf7dd2207111f0f269b7cdfa8a7fa703b664585513bc113e0d2c8bc7ce9eb355f), implementations: [0x7f1d12fB2911EB095278085f721e644C1f675696](https://etherscan.io/address/0x7f1d12fB2911EB095278085f721e644C1f675696#code) ([diff](https://disco.l2beat.com/diff/eth:0x7aE1d3BD877a4C5CA257404ce26BE93A02C98013/eth:0x7f1d12fB2911EB095278085f721e644C1f675696)) - 2026-08-04 14:11 UTC, deployment of [AnchorStateRegistry](https://etherscan.io/address/0x2613d77fFBE105CA861D526061dC3ef191E17051#code): transaction [0xf7dd2207111f0f269b7cdfa8a7fa703b664585513bc113e0d2c8bc7ce9eb355f](https://etherscan.io/tx/0xf7dd2207111f0f269b7cdfa8a7fa703b664585513bc113e0d2c8bc7ce9eb355f), implementations: [0xeb69cC681E8D4a557b30DFFBAd85aFfD47a2CF2E](https://etherscan.io/address/0xeb69cC681E8D4a557b30DFFBAd85aFfD47a2CF2E#code) - 2026-08-04 14:11 UTC, upgrade of [SuperchainConfig](https://etherscan.io/address/0x097f99768A0a4a0A81bAbbCB1ea18193bA9D53cC#code): transaction [0xf7dd2207111f0f269b7cdfa8a7fa703b664585513bc113e0d2c8bc7ce9eb355f](https://etherscan.io/tx/0xf7dd2207111f0f269b7cdfa8a7fa703b664585513bc113e0d2c8bc7ce9eb355f), implementations: [0xCe28685EB204186b557133766eCA00334EB441E4](https://etherscan.io/address/0xCe28685EB204186b557133766eCA00334EB441E4#code) ([diff](https://disco.l2beat.com/diff/eth:0x4da82a327773965b8d4D85Fa3dB8249b387458E7/eth:0xCe28685EB204186b557133766eCA00334EB441E4)) - 2026-08-04 14:04 UTC, upgrade of [OptimismPortal2](https://etherscan.io/address/0x17bfAfA932d2e23Bd9B909Fd5B4D2e2a27043fb1#code): transaction [0xf7628d3121b7e3f4dcd11e06791a07e8ffa71753962baadc04c62944d412a006](https://etherscan.io/tx/0xf7628d3121b7e3f4dcd11e06791a07e8ffa71753962baadc04c62944d412a006), implementations: [0xB443Da3e07052204A02d630a8933dAc05a0d6fB4](https://etherscan.io/address/0xB443Da3e07052204A02d630a8933dAc05a0d6fB4#code) ([diff](https://disco.l2beat.com/diff/eth:0x2D7e764a0D9919e16983a46595CfA81fc34fa7Cd/eth:0xB443Da3e07052204A02d630a8933dAc05a0d6fB4)) - 2026-08-04 14:04 UTC, upgrade of [SystemConfig](https://etherscan.io/address/0x30F82a1Ca89226E8b8815d6EbB728e3b18a428ff#code): transaction [0xf7628d3121b7e3f4dcd11e06791a07e8ffa71753962baadc04c62944d412a006](https://etherscan.io/tx/0xf7628d3121b7e3f4dcd11e06791a07e8ffa71753962baadc04c62944d412a006), implementations: [0x340f923E5c7cbB2171146f64169EC9d5a9FfE647](https://etherscan.io/address/0x340f923E5c7cbB2171146f64169EC9d5a9FfE647#code) ([diff](https://disco.l2beat.com/diff/eth:0x760C48C62A85045A6B69f07F4a9f22868659CbCc/eth:0x340f923E5c7cbB2171146f64169EC9d5a9FfE647)) - 2026-08-04 14:04 UTC, upgrade of [L1CrossDomainMessenger](https://etherscan.io/address/0x2a721cBE81a128be0F01040e3353c3805A5EA091#code): transaction [0xf7628d3121b7e3f4dcd11e06791a07e8ffa71753962baadc04c62944d412a006](https://etherscan.io/tx/0xf7628d3121b7e3f4dcd11e06791a07e8ffa71753962baadc04c62944d412a006), implementations: [0x5D5a095665886119693F0B41d8DFeE78da033e8B](https://etherscan.io/address/0x5D5a095665886119693F0B41d8DFeE78da033e8B#code) ([diff](https://disco.l2beat.com/diff/eth:0x3eA6084748ED1b2A9B5D4426181F1ad8C93F6231/eth:0x5D5a095665886119693F0B41d8DFeE78da033e8B)) - 2026-08-04 14:04 UTC, upgrade of [L1StandardBridge](https://etherscan.io/address/0x386B76D9cA5F5Fb150B6BFB35CF5379B22B26dd8#code): transaction [0xf7628d3121b7e3f4dcd11e06791a07e8ffa71753962baadc04c62944d412a006](https://etherscan.io/tx/0xf7628d3121b7e3f4dcd11e06791a07e8ffa71753962baadc04c62944d412a006), implementations: [0x0b09ba359A106C9ea3b181CBc5F394570c7d2a7A](https://etherscan.io/address/0x0b09ba359A106C9ea3b181CBc5F394570c7d2a7A#code) ([diff](https://disco.l2beat.com/diff/eth:0x78972E88Ab8BBB517a36cAea23b931BAB58AD3c6/eth:0x0b09ba359A106C9ea3b181CBc5F394570c7d2a7A)) - 2026-08-04 14:04 UTC, upgrade of [L1ERC721Bridge](https://etherscan.io/address/0x994eEb321F9cD79B077a5455fC248c77f30Dd244#code): transaction [0xf7628d3121b7e3f4dcd11e06791a07e8ffa71753962baadc04c62944d412a006](https://etherscan.io/tx/0xf7628d3121b7e3f4dcd11e06791a07e8ffa71753962baadc04c62944d412a006), implementations: [0x7aE1d3BD877a4C5CA257404ce26BE93A02C98013](https://etherscan.io/address/0x7aE1d3BD877a4C5CA257404ce26BE93A02C98013#code) ([diff](https://disco.l2beat.com/diff/eth:0x276d3730f219f7ec22274f7263180b8452B46d47/eth:0x7aE1d3BD877a4C5CA257404ce26BE93A02C98013)) - 2026-08-04 13:59 UTC, upgrade of [OptimismPortal2](https://etherscan.io/address/0x17bfAfA932d2e23Bd9B909Fd5B4D2e2a27043fb1#code): transaction [0xfb6124f237aaaccedd1f8d1298ae5f3b19871f7af18bd4c791a818487cc199de](https://etherscan.io/tx/0xfb6124f237aaaccedd1f8d1298ae5f3b19871f7af18bd4c791a818487cc199de), implementations: [0x2D7e764a0D9919e16983a46595CfA81fc34fa7Cd](https://etherscan.io/address/0x2D7e764a0D9919e16983a46595CfA81fc34fa7Cd#code) ([diff](https://disco.l2beat.com/diff/eth:0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC/eth:0x2D7e764a0D9919e16983a46595CfA81fc34fa7Cd)) - 2026-08-04 13:59 UTC, upgrade of [SystemConfig](https://etherscan.io/address/0x30F82a1Ca89226E8b8815d6EbB728e3b18a428ff#code): transaction [0xfb6124f237aaaccedd1f8d1298ae5f3b19871f7af18bd4c791a818487cc199de](https://etherscan.io/tx/0xfb6124f237aaaccedd1f8d1298ae5f3b19871f7af18bd4c791a818487cc199de), implementations: [0x760C48C62A85045A6B69f07F4a9f22868659CbCc](https://etherscan.io/address/0x760C48C62A85045A6B69f07F4a9f22868659CbCc#code) ([diff](https://disco.l2beat.com/diff/eth:0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC/eth:0x760C48C62A85045A6B69f07F4a9f22868659CbCc)) - 2026-08-04 13:59 UTC, upgrade of [DisputeGameFactory](https://etherscan.io/address/0x6b9e81504e961a9CDf81A06e916720fb4c273e90#code): transaction [0xfb6124f237aaaccedd1f8d1298ae5f3b19871f7af18bd4c791a818487cc199de](https://etherscan.io/tx/0xfb6124f237aaaccedd1f8d1298ae5f3b19871f7af18bd4c791a818487cc199de), implementations: [0x4bbA758F006Ef09402eF31724203F316ab74e4a0](https://etherscan.io/address/0x4bbA758F006Ef09402eF31724203F316ab74e4a0#code) ([diff](https://disco.l2beat.com/diff/eth:0xc641A33cab81C559F2bd4b21EA34C290E2440C2B/eth:0x4bbA758F006Ef09402eF31724203F316ab74e4a0)) - 2026-08-04 13:59 UTC, upgrade of [L1CrossDomainMessenger](https://etherscan.io/address/0x2a721cBE81a128be0F01040e3353c3805A5EA091#code): transaction [0xfb6124f237aaaccedd1f8d1298ae5f3b19871f7af18bd4c791a818487cc199de](https://etherscan.io/tx/0xfb6124f237aaaccedd1f8d1298ae5f3b19871f7af18bd4c791a818487cc199de), implementations: [0x3eA6084748ED1b2A9B5D4426181F1ad8C93F6231](https://etherscan.io/address/0x3eA6084748ED1b2A9B5D4426181F1ad8C93F6231#code) ([diff](https://disco.l2beat.com/diff/eth:0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC/eth:0x3eA6084748ED1b2A9B5D4426181F1ad8C93F6231)) - 2026-08-04 13:59 UTC, upgrade of [L1StandardBridge](https://etherscan.io/address/0x386B76D9cA5F5Fb150B6BFB35CF5379B22B26dd8#code): transaction [0xfb6124f237aaaccedd1f8d1298ae5f3b19871f7af18bd4c791a818487cc199de](https://etherscan.io/tx/0xfb6124f237aaaccedd1f8d1298ae5f3b19871f7af18bd4c791a818487cc199de), implementations: [0x78972E88Ab8BBB517a36cAea23b931BAB58AD3c6](https://etherscan.io/address/0x78972E88Ab8BBB517a36cAea23b931BAB58AD3c6#code) ([diff](https://disco.l2beat.com/diff/eth:0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC/eth:0x78972E88Ab8BBB517a36cAea23b931BAB58AD3c6)) - 2026-08-04 13:59 UTC, upgrade of [L1ERC721Bridge](https://etherscan.io/address/0x994eEb321F9cD79B077a5455fC248c77f30Dd244#code): transaction [0xfb6124f237aaaccedd1f8d1298ae5f3b19871f7af18bd4c791a818487cc199de](https://etherscan.io/tx/0xfb6124f237aaaccedd1f8d1298ae5f3b19871f7af18bd4c791a818487cc199de), implementations: [0x276d3730f219f7ec22274f7263180b8452B46d47](https://etherscan.io/address/0x276d3730f219f7ec22274f7263180b8452B46d47#code) ([diff](https://disco.l2beat.com/diff/eth:0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC/eth:0x276d3730f219f7ec22274f7263180b8452B46d47)) - 2026-08-04 13:59 UTC, upgrade of [OptimismMintableERC20Factory](https://etherscan.io/address/0xc77ece87C91C44AFb5f19638f9a0F75b5d90E932#code): transaction [0xfb6124f237aaaccedd1f8d1298ae5f3b19871f7af18bd4c791a818487cc199de](https://etherscan.io/tx/0xfb6124f237aaaccedd1f8d1298ae5f3b19871f7af18bd4c791a818487cc199de), implementations: [0x5493f4677A186f64805fe7317D6993ba4863988F](https://etherscan.io/address/0x5493f4677A186f64805fe7317D6993ba4863988F#code) ([diff](https://disco.l2beat.com/diff/eth:0xE01efbeb1089D1d1dB9c6c8b135C934C0734c846/eth:0x5493f4677A186f64805fe7317D6993ba4863988F)) - 2026-08-04 13:59 UTC, upgrade of [SuperchainConfig](https://etherscan.io/address/0x097f99768A0a4a0A81bAbbCB1ea18193bA9D53cC#code): transaction [0xfb6124f237aaaccedd1f8d1298ae5f3b19871f7af18bd4c791a818487cc199de](https://etherscan.io/tx/0xfb6124f237aaaccedd1f8d1298ae5f3b19871f7af18bd4c791a818487cc199de), implementations: [0x4da82a327773965b8d4D85Fa3dB8249b387458E7](https://etherscan.io/address/0x4da82a327773965b8d4D85Fa3dB8249b387458E7#code) ([diff](https://disco.l2beat.com/diff/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8/eth:0x4da82a327773965b8d4D85Fa3dB8249b387458E7)) - 2026-08-04 13:48 UTC, upgrade of [OptimismPortal2](https://etherscan.io/address/0x17bfAfA932d2e23Bd9B909Fd5B4D2e2a27043fb1#code): transaction [0x3fb4739c3ce4edcab46b84c2438e7d1f86b85e7e57970a7eaf6b6de11dda6080](https://etherscan.io/tx/0x3fb4739c3ce4edcab46b84c2438e7d1f86b85e7e57970a7eaf6b6de11dda6080), implementations: [0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC](https://etherscan.io/address/0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC#code) ([diff](https://disco.l2beat.com/diff/eth:0xe2F826324b2faf99E513D16D266c3F80aE87832B/eth:0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC)) - 2026-08-04 13:48 UTC, upgrade of [OptimismPortal2](https://etherscan.io/address/0x17bfAfA932d2e23Bd9B909Fd5B4D2e2a27043fb1#code): transaction [0x3fb4739c3ce4edcab46b84c2438e7d1f86b85e7e57970a7eaf6b6de11dda6080](https://etherscan.io/tx/0x3fb4739c3ce4edcab46b84c2438e7d1f86b85e7e57970a7eaf6b6de11dda6080), implementations: [0xe2F826324b2faf99E513D16D266c3F80aE87832B](https://etherscan.io/address/0xe2F826324b2faf99E513D16D266c3F80aE87832B#code) ([diff](https://disco.l2beat.com/diff/eth:0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC/eth:0xe2F826324b2faf99E513D16D266c3F80aE87832B)) - 2026-08-04 13:48 UTC, upgrade of [SystemConfig](https://etherscan.io/address/0x30F82a1Ca89226E8b8815d6EbB728e3b18a428ff#code): transaction [0x3fb4739c3ce4edcab46b84c2438e7d1f86b85e7e57970a7eaf6b6de11dda6080](https://etherscan.io/tx/0x3fb4739c3ce4edcab46b84c2438e7d1f86b85e7e57970a7eaf6b6de11dda6080), implementations: [0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC](https://etherscan.io/address/0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC#code) ([diff](https://disco.l2beat.com/diff/eth:0xAB9d6cB7A427c0765163A7f45BB91cAfe5f2D375/eth:0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC)) - 2026-08-04 13:48 UTC, upgrade of [SystemConfig](https://etherscan.io/address/0x30F82a1Ca89226E8b8815d6EbB728e3b18a428ff#code): transaction [0x3fb4739c3ce4edcab46b84c2438e7d1f86b85e7e57970a7eaf6b6de11dda6080](https://etherscan.io/tx/0x3fb4739c3ce4edcab46b84c2438e7d1f86b85e7e57970a7eaf6b6de11dda6080), implementations: [0xAB9d6cB7A427c0765163A7f45BB91cAfe5f2D375](https://etherscan.io/address/0xAB9d6cB7A427c0765163A7f45BB91cAfe5f2D375#code) ([diff](https://disco.l2beat.com/diff/eth:0xAB9d6cB7A427c0765163A7f45BB91cAfe5f2D375/eth:0xAB9d6cB7A427c0765163A7f45BB91cAfe5f2D375)) - 2026-08-04 13:40 UTC, upgrade of [SystemConfig](https://etherscan.io/address/0x30F82a1Ca89226E8b8815d6EbB728e3b18a428ff#code): transaction [0x2b72943b3cf73e5f4dade0cc6edd2f78bc2cb3f518df2872cf6fd69aea924cc0](https://etherscan.io/tx/0x2b72943b3cf73e5f4dade0cc6edd2f78bc2cb3f518df2872cf6fd69aea924cc0), implementations: [0xAB9d6cB7A427c0765163A7f45BB91cAfe5f2D375](https://etherscan.io/address/0xAB9d6cB7A427c0765163A7f45BB91cAfe5f2D375#code) ([diff](https://disco.l2beat.com/diff/eth:0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC/eth:0xAB9d6cB7A427c0765163A7f45BB91cAfe5f2D375)) - 2026-08-04 13:40 UTC, upgrade of [L1CrossDomainMessenger](https://etherscan.io/address/0x2a721cBE81a128be0F01040e3353c3805A5EA091#code): transaction [0x2b72943b3cf73e5f4dade0cc6edd2f78bc2cb3f518df2872cf6fd69aea924cc0](https://etherscan.io/tx/0x2b72943b3cf73e5f4dade0cc6edd2f78bc2cb3f518df2872cf6fd69aea924cc0), implementations: [0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC](https://etherscan.io/address/0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC#code) ([diff](https://disco.l2beat.com/diff/eth:0xD3494713A5cfaD3F5359379DfA074E2Ac8C6Fd65/eth:0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC)) - 2026-08-04 13:40 UTC, upgrade of [L1CrossDomainMessenger](https://etherscan.io/address/0x2a721cBE81a128be0F01040e3353c3805A5EA091#code): transaction [0x2b72943b3cf73e5f4dade0cc6edd2f78bc2cb3f518df2872cf6fd69aea924cc0](https://etherscan.io/tx/0x2b72943b3cf73e5f4dade0cc6edd2f78bc2cb3f518df2872cf6fd69aea924cc0), implementations: [0xD3494713A5cfaD3F5359379DfA074E2Ac8C6Fd65](https://etherscan.io/address/0xD3494713A5cfaD3F5359379DfA074E2Ac8C6Fd65#code) ([diff](https://disco.l2beat.com/diff/eth:0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC/eth:0xD3494713A5cfaD3F5359379DfA074E2Ac8C6Fd65)) - 2026-08-04 13:40 UTC, upgrade of [L1StandardBridge](https://etherscan.io/address/0x386B76D9cA5F5Fb150B6BFB35CF5379B22B26dd8#code): transaction [0x2b72943b3cf73e5f4dade0cc6edd2f78bc2cb3f518df2872cf6fd69aea924cc0](https://etherscan.io/tx/0x2b72943b3cf73e5f4dade0cc6edd2f78bc2cb3f518df2872cf6fd69aea924cc0), implementations: [0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC](https://etherscan.io/address/0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC#code) ([diff](https://disco.l2beat.com/diff/eth:0x64B5a5Ed26DCb17370Ff4d33a8D503f0fbD06CfF/eth:0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC)) - 2026-08-04 13:40 UTC, upgrade of [L1StandardBridge](https://etherscan.io/address/0x386B76D9cA5F5Fb150B6BFB35CF5379B22B26dd8#code): transaction [0x2b72943b3cf73e5f4dade0cc6edd2f78bc2cb3f518df2872cf6fd69aea924cc0](https://etherscan.io/tx/0x2b72943b3cf73e5f4dade0cc6edd2f78bc2cb3f518df2872cf6fd69aea924cc0), implementations: [0x64B5a5Ed26DCb17370Ff4d33a8D503f0fbD06CfF](https://etherscan.io/address/0x64B5a5Ed26DCb17370Ff4d33a8D503f0fbD06CfF#code) ([diff](https://disco.l2beat.com/diff/eth:0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC/eth:0x64B5a5Ed26DCb17370Ff4d33a8D503f0fbD06CfF)) - 2026-08-04 13:40 UTC, upgrade of [L1ERC721Bridge](https://etherscan.io/address/0x994eEb321F9cD79B077a5455fC248c77f30Dd244#code): transaction [0x2b72943b3cf73e5f4dade0cc6edd2f78bc2cb3f518df2872cf6fd69aea924cc0](https://etherscan.io/tx/0x2b72943b3cf73e5f4dade0cc6edd2f78bc2cb3f518df2872cf6fd69aea924cc0), implementations: [0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC](https://etherscan.io/address/0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC#code) ([diff](https://disco.l2beat.com/diff/eth:0xAE2AF01232a6c4a4d3012C5eC5b1b35059caF10d/eth:0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC)) - 2026-08-04 13:40 UTC, upgrade of [L1ERC721Bridge](https://etherscan.io/address/0x994eEb321F9cD79B077a5455fC248c77f30Dd244#code): transaction [0x2b72943b3cf73e5f4dade0cc6edd2f78bc2cb3f518df2872cf6fd69aea924cc0](https://etherscan.io/tx/0x2b72943b3cf73e5f4dade0cc6edd2f78bc2cb3f518df2872cf6fd69aea924cc0), implementations: [0xAE2AF01232a6c4a4d3012C5eC5b1b35059caF10d](https://etherscan.io/address/0xAE2AF01232a6c4a4d3012C5eC5b1b35059caF10d#code) ([diff](https://disco.l2beat.com/diff/eth:0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC/eth:0xAE2AF01232a6c4a4d3012C5eC5b1b35059caF10d)) - 2026-08-04 13:40 UTC, upgrade of [OptimismMintableERC20Factory](https://etherscan.io/address/0xc77ece87C91C44AFb5f19638f9a0F75b5d90E932#code): transaction [0x2b72943b3cf73e5f4dade0cc6edd2f78bc2cb3f518df2872cf6fd69aea924cc0](https://etherscan.io/tx/0x2b72943b3cf73e5f4dade0cc6edd2f78bc2cb3f518df2872cf6fd69aea924cc0), implementations: [0xE01efbeb1089D1d1dB9c6c8b135C934C0734c846](https://etherscan.io/address/0xE01efbeb1089D1d1dB9c6c8b135C934C0734c846#code) ([diff](https://disco.l2beat.com/diff/eth:0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC/eth:0xE01efbeb1089D1d1dB9c6c8b135C934C0734c846)) - 2026-08-04 13:37 UTC, deployment of [DisputeGameFactory](https://etherscan.io/address/0x6b9e81504e961a9CDf81A06e916720fb4c273e90#code): transaction [0x06c740b37bed26864623381918adb2ecf4f469661d067f648ad62e50a989bba9](https://etherscan.io/tx/0x06c740b37bed26864623381918adb2ecf4f469661d067f648ad62e50a989bba9), implementations: [0xc641A33cab81C559F2bd4b21EA34C290E2440C2B](https://etherscan.io/address/0xc641A33cab81C559F2bd4b21EA34C290E2440C2B#code) - 2026-08-04 13:31 UTC, upgrade of [OptimismPortal2](https://etherscan.io/address/0x17bfAfA932d2e23Bd9B909Fd5B4D2e2a27043fb1#code): transaction [0xe697fe2a042f60a3fb3f835e122e209bab529a36fe66bfc77af79dbb1bebdfa4](https://etherscan.io/tx/0xe697fe2a042f60a3fb3f835e122e209bab529a36fe66bfc77af79dbb1bebdfa4), implementations: [0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC](https://etherscan.io/address/0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC#code) ([diff](https://disco.l2beat.com/diff/eth:0x2D778797049FE9259d947D1ED8e5442226dFB589/eth:0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC)) - 2026-08-04 13:31 UTC, upgrade of [OptimismPortal2](https://etherscan.io/address/0x17bfAfA932d2e23Bd9B909Fd5B4D2e2a27043fb1#code): transaction [0xe697fe2a042f60a3fb3f835e122e209bab529a36fe66bfc77af79dbb1bebdfa4](https://etherscan.io/tx/0xe697fe2a042f60a3fb3f835e122e209bab529a36fe66bfc77af79dbb1bebdfa4), implementations: [0x2D778797049FE9259d947D1ED8e5442226dFB589](https://etherscan.io/address/0x2D778797049FE9259d947D1ED8e5442226dFB589#code) ([diff](https://disco.l2beat.com/diff/eth:0xF7209f5471628aC5f68FE4ae98Feb7f02E0f40Be/eth:0x2D778797049FE9259d947D1ED8e5442226dFB589)) - 2026-08-04 13:31 UTC, upgrade of [SystemConfig](https://etherscan.io/address/0x30F82a1Ca89226E8b8815d6EbB728e3b18a428ff#code): transaction [0xe697fe2a042f60a3fb3f835e122e209bab529a36fe66bfc77af79dbb1bebdfa4](https://etherscan.io/tx/0xe697fe2a042f60a3fb3f835e122e209bab529a36fe66bfc77af79dbb1bebdfa4), implementations: [0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC](https://etherscan.io/address/0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC#code) ([diff](https://disco.l2beat.com/diff/eth:0xba2492e52F45651B60B8B38d4Ea5E2390C64Ffb1/eth:0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC)) - 2026-08-04 13:31 UTC, upgrade of [SystemConfig](https://etherscan.io/address/0x30F82a1Ca89226E8b8815d6EbB728e3b18a428ff#code): transaction [0xe697fe2a042f60a3fb3f835e122e209bab529a36fe66bfc77af79dbb1bebdfa4](https://etherscan.io/tx/0xe697fe2a042f60a3fb3f835e122e209bab529a36fe66bfc77af79dbb1bebdfa4), implementations: [0xba2492e52F45651B60B8B38d4Ea5E2390C64Ffb1](https://etherscan.io/address/0xba2492e52F45651B60B8B38d4Ea5E2390C64Ffb1#code) ([diff](https://disco.l2beat.com/diff/eth:0xaFD10586f3F2cB2aD34E8196563424a3a93EbE9F/eth:0xba2492e52F45651B60B8B38d4Ea5E2390C64Ffb1)) - 2026-08-04 13:31 UTC, upgrade of [L1CrossDomainMessenger](https://etherscan.io/address/0x2a721cBE81a128be0F01040e3353c3805A5EA091#code): transaction [0xe697fe2a042f60a3fb3f835e122e209bab529a36fe66bfc77af79dbb1bebdfa4](https://etherscan.io/tx/0xe697fe2a042f60a3fb3f835e122e209bab529a36fe66bfc77af79dbb1bebdfa4), implementations: [0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC](https://etherscan.io/address/0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC#code) ([diff](https://disco.l2beat.com/diff/eth:0xD3494713A5cfaD3F5359379DfA074E2Ac8C6Fd65/eth:0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC)) - 2026-08-04 13:31 UTC, upgrade of [L1CrossDomainMessenger](https://etherscan.io/address/0x2a721cBE81a128be0F01040e3353c3805A5EA091#code): transaction [0xe697fe2a042f60a3fb3f835e122e209bab529a36fe66bfc77af79dbb1bebdfa4](https://etherscan.io/tx/0xe697fe2a042f60a3fb3f835e122e209bab529a36fe66bfc77af79dbb1bebdfa4), implementations: [0xD3494713A5cfaD3F5359379DfA074E2Ac8C6Fd65](https://etherscan.io/address/0xD3494713A5cfaD3F5359379DfA074E2Ac8C6Fd65#code) ([diff](https://disco.l2beat.com/diff/eth:0xA5B66A9FBCE3d57dA2b3Bd764d0a05B95052f73F/eth:0xD3494713A5cfaD3F5359379DfA074E2Ac8C6Fd65)) - 2026-08-04 13:31 UTC, upgrade of [L1StandardBridge](https://etherscan.io/address/0x386B76D9cA5F5Fb150B6BFB35CF5379B22B26dd8#code): transaction [0xe697fe2a042f60a3fb3f835e122e209bab529a36fe66bfc77af79dbb1bebdfa4](https://etherscan.io/tx/0xe697fe2a042f60a3fb3f835e122e209bab529a36fe66bfc77af79dbb1bebdfa4), implementations: [0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC](https://etherscan.io/address/0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC#code) ([diff](https://disco.l2beat.com/diff/eth:0x64B5a5Ed26DCb17370Ff4d33a8D503f0fbD06CfF/eth:0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC)) - 2026-08-04 13:31 UTC, upgrade of [L1StandardBridge](https://etherscan.io/address/0x386B76D9cA5F5Fb150B6BFB35CF5379B22B26dd8#code): transaction [0xe697fe2a042f60a3fb3f835e122e209bab529a36fe66bfc77af79dbb1bebdfa4](https://etherscan.io/tx/0xe697fe2a042f60a3fb3f835e122e209bab529a36fe66bfc77af79dbb1bebdfa4), implementations: [0x64B5a5Ed26DCb17370Ff4d33a8D503f0fbD06CfF](https://etherscan.io/address/0x64B5a5Ed26DCb17370Ff4d33a8D503f0fbD06CfF#code) ([diff](https://disco.l2beat.com/diff/eth:0x25DF2d6DDCa09C0f9Fce19373896be075F4f7d98/eth:0x64B5a5Ed26DCb17370Ff4d33a8D503f0fbD06CfF)) - 2026-08-04 13:31 UTC, upgrade of [L1ERC721Bridge](https://etherscan.io/address/0x994eEb321F9cD79B077a5455fC248c77f30Dd244#code): transaction [0xe697fe2a042f60a3fb3f835e122e209bab529a36fe66bfc77af79dbb1bebdfa4](https://etherscan.io/tx/0xe697fe2a042f60a3fb3f835e122e209bab529a36fe66bfc77af79dbb1bebdfa4), implementations: [0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC](https://etherscan.io/address/0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC#code) ([diff](https://disco.l2beat.com/diff/eth:0xAE2AF01232a6c4a4d3012C5eC5b1b35059caF10d/eth:0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC)) - 2026-08-04 13:31 UTC, upgrade of [L1ERC721Bridge](https://etherscan.io/address/0x994eEb321F9cD79B077a5455fC248c77f30Dd244#code): transaction [0xe697fe2a042f60a3fb3f835e122e209bab529a36fe66bfc77af79dbb1bebdfa4](https://etherscan.io/tx/0xe697fe2a042f60a3fb3f835e122e209bab529a36fe66bfc77af79dbb1bebdfa4), implementations: [0xAE2AF01232a6c4a4d3012C5eC5b1b35059caF10d](https://etherscan.io/address/0xAE2AF01232a6c4a4d3012C5eC5b1b35059caF10d#code) ([diff](https://disco.l2beat.com/diff/eth:0xDF129ECFc63Af454F62b69d03C0f0E21e69bcDAb/eth:0xAE2AF01232a6c4a4d3012C5eC5b1b35059caF10d)) - 2026-08-04 13:31 UTC, upgrade of [OptimismMintableERC20Factory](https://etherscan.io/address/0xc77ece87C91C44AFb5f19638f9a0F75b5d90E932#code): transaction [0xe697fe2a042f60a3fb3f835e122e209bab529a36fe66bfc77af79dbb1bebdfa4](https://etherscan.io/tx/0xe697fe2a042f60a3fb3f835e122e209bab529a36fe66bfc77af79dbb1bebdfa4), implementations: [0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC](https://etherscan.io/address/0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC#code) ([diff](https://disco.l2beat.com/diff/eth:0xE01efbeb1089D1d1dB9c6c8b135C934C0734c846/eth:0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC)) - 2026-08-04 13:31 UTC, upgrade of [OptimismMintableERC20Factory](https://etherscan.io/address/0xc77ece87C91C44AFb5f19638f9a0F75b5d90E932#code): transaction [0xe697fe2a042f60a3fb3f835e122e209bab529a36fe66bfc77af79dbb1bebdfa4](https://etherscan.io/tx/0xe697fe2a042f60a3fb3f835e122e209bab529a36fe66bfc77af79dbb1bebdfa4), implementations: [0xE01efbeb1089D1d1dB9c6c8b135C934C0734c846](https://etherscan.io/address/0xE01efbeb1089D1d1dB9c6c8b135C934C0734c846#code) ([diff](https://disco.l2beat.com/diff/eth:0xf885DA6A3B4c93905b02f36f9a13680922A554b0/eth:0xE01efbeb1089D1d1dB9c6c8b135C934C0734c846)) - 2026-07-17 11:30 UTC, upgrade of [SuperchainConfig](https://etherscan.io/address/0x097f99768A0a4a0A81bAbbCB1ea18193bA9D53cC#code): transaction [0x1f1d4768cc0d3f218a3f5aea7b6ceed0ae663498958e8194f208e88522c6404b](https://etherscan.io/tx/0x1f1d4768cc0d3f218a3f5aea7b6ceed0ae663498958e8194f208e88522c6404b), implementations: [0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8](https://etherscan.io/address/0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8#code) ([diff](https://disco.l2beat.com/diff/eth:0xE4F9779ab53070a55db24dFAeFf9AF147c6ED550/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8)) - 2026-07-17 11:30 UTC, upgrade of [SuperchainConfig](https://etherscan.io/address/0x097f99768A0a4a0A81bAbbCB1ea18193bA9D53cC#code): transaction [0x1f1d4768cc0d3f218a3f5aea7b6ceed0ae663498958e8194f208e88522c6404b](https://etherscan.io/tx/0x1f1d4768cc0d3f218a3f5aea7b6ceed0ae663498958e8194f208e88522c6404b), implementations: [0xE4F9779ab53070a55db24dFAeFf9AF147c6ED550](https://etherscan.io/address/0xE4F9779ab53070a55db24dFAeFf9AF147c6ED550#code) ([diff](https://disco.l2beat.com/diff/eth:0xCe28685EB204186b557133766eCA00334EB441E4/eth:0xE4F9779ab53070a55db24dFAeFf9AF147c6ED550)) - 2026-01-12 08:51 UTC, upgrade of [SuperchainConfig](https://etherscan.io/address/0x097f99768A0a4a0A81bAbbCB1ea18193bA9D53cC#code): transaction [0x00b0d87bdd24f6273dabd8cb118814977b0e80773f88cb5baabb50463252d744](https://etherscan.io/tx/0x00b0d87bdd24f6273dabd8cb118814977b0e80773f88cb5baabb50463252d744), implementations: [0xCe28685EB204186b557133766eCA00334EB441E4](https://etherscan.io/address/0xCe28685EB204186b557133766eCA00334EB441E4#code) ([diff](https://disco.l2beat.com/diff/eth:0xb08Cc720F511062537ca78BdB0AE691F04F5a957/eth:0xCe28685EB204186b557133766eCA00334EB441E4)) - 2026-01-12 08:51 UTC, upgrade of [SuperchainConfig](https://etherscan.io/address/0x097f99768A0a4a0A81bAbbCB1ea18193bA9D53cC#code): transaction [0x00b0d87bdd24f6273dabd8cb118814977b0e80773f88cb5baabb50463252d744](https://etherscan.io/tx/0x00b0d87bdd24f6273dabd8cb118814977b0e80773f88cb5baabb50463252d744), implementations: [0xb08Cc720F511062537ca78BdB0AE691F04F5a957](https://etherscan.io/address/0xb08Cc720F511062537ca78BdB0AE691F04F5a957#code) ([diff](https://disco.l2beat.com/diff/eth:0x4da82a327773965b8d4D85Fa3dB8249b387458E7/eth:0xb08Cc720F511062537ca78BdB0AE691F04F5a957)) - 2025-11-24 20:55 UTC, upgrade of [SystemConfig](https://etherscan.io/address/0x30F82a1Ca89226E8b8815d6EbB728e3b18a428ff#code): transaction [0x7e05b5e49355a8b5e46139a79cae4374dc441b3f53adabd248a2851997e45323](https://etherscan.io/tx/0x7e05b5e49355a8b5e46139a79cae4374dc441b3f53adabd248a2851997e45323), implementations: [0xaFD10586f3F2cB2aD34E8196563424a3a93EbE9F](https://etherscan.io/address/0xaFD10586f3F2cB2aD34E8196563424a3a93EbE9F#code) ([diff](https://disco.l2beat.com/diff/eth:0x83085450544c3F360a40720859EbB1bfd311584D/eth:0xaFD10586f3F2cB2aD34E8196563424a3a93EbE9F)) - 2025-11-24 20:55 UTC, upgrade of [L1StandardBridge](https://etherscan.io/address/0x386B76D9cA5F5Fb150B6BFB35CF5379B22B26dd8#code): transaction [0x7e05b5e49355a8b5e46139a79cae4374dc441b3f53adabd248a2851997e45323](https://etherscan.io/tx/0x7e05b5e49355a8b5e46139a79cae4374dc441b3f53adabd248a2851997e45323), implementations: [0x25DF2d6DDCa09C0f9Fce19373896be075F4f7d98](https://etherscan.io/address/0x25DF2d6DDCa09C0f9Fce19373896be075F4f7d98#code) ([diff](https://disco.l2beat.com/diff/eth:0xFF30d6E9acecc919e4E9e1A2e67980ee44Df6Ebb/eth:0x25DF2d6DDCa09C0f9Fce19373896be075F4f7d98)) - 2025-08-22 22:25 UTC, upgrade of [OptimismPortal2](https://etherscan.io/address/0x17bfAfA932d2e23Bd9B909Fd5B4D2e2a27043fb1#code): transaction [0x1d729201879e9035259d12fc58020a8f4dd1cb7c6972f915a6fcef15f89756d6](https://etherscan.io/tx/0x1d729201879e9035259d12fc58020a8f4dd1cb7c6972f915a6fcef15f89756d6), implementations: [0xF7209f5471628aC5f68FE4ae98Feb7f02E0f40Be](https://etherscan.io/address/0xF7209f5471628aC5f68FE4ae98Feb7f02E0f40Be#code) ([diff](https://disco.l2beat.com/diff/eth:0xE14b12F4843447114A093D99Dc9322b93a967DE6/eth:0xF7209f5471628aC5f68FE4ae98Feb7f02E0f40Be)) - 2025-08-22 22:25 UTC, upgrade of [SystemConfig](https://etherscan.io/address/0x30F82a1Ca89226E8b8815d6EbB728e3b18a428ff#code): transaction [0x1d729201879e9035259d12fc58020a8f4dd1cb7c6972f915a6fcef15f89756d6](https://etherscan.io/tx/0x1d729201879e9035259d12fc58020a8f4dd1cb7c6972f915a6fcef15f89756d6), implementations: [0x83085450544c3F360a40720859EbB1bfd311584D](https://etherscan.io/address/0x83085450544c3F360a40720859EbB1bfd311584D#code) ([diff](https://disco.l2beat.com/diff/eth:0x795277B6aD8778E27aa70813157134cfC4a4D446/eth:0x83085450544c3F360a40720859EbB1bfd311584D)) - 2025-08-05 13:35 UTC, upgrade of [OptimismPortal2](https://etherscan.io/address/0x17bfAfA932d2e23Bd9B909Fd5B4D2e2a27043fb1#code): transaction [0x12d1d0dde1bafad169722a0d6a42fafad00cacc19282bc0f7de4ad39b70afed1](https://etherscan.io/tx/0x12d1d0dde1bafad169722a0d6a42fafad00cacc19282bc0f7de4ad39b70afed1), implementations: [0xE14b12F4843447114A093D99Dc9322b93a967DE6](https://etherscan.io/address/0xE14b12F4843447114A093D99Dc9322b93a967DE6#code) ([diff](https://disco.l2beat.com/diff/eth:0xA0A36095A2258568759fb41CAE4934BBd2d04E26/eth:0xE14b12F4843447114A093D99Dc9322b93a967DE6)) - 2025-08-05 13:35 UTC, upgrade of [OptimismPortal2](https://etherscan.io/address/0x17bfAfA932d2e23Bd9B909Fd5B4D2e2a27043fb1#code): transaction [0x12d1d0dde1bafad169722a0d6a42fafad00cacc19282bc0f7de4ad39b70afed1](https://etherscan.io/tx/0x12d1d0dde1bafad169722a0d6a42fafad00cacc19282bc0f7de4ad39b70afed1), implementations: [0xA0A36095A2258568759fb41CAE4934BBd2d04E26](https://etherscan.io/address/0xA0A36095A2258568759fb41CAE4934BBd2d04E26#code) ([diff](https://disco.l2beat.com/diff/eth:0x6335a030fdCBa6c5704a74EF3BeDdd6550c0375a/eth:0xA0A36095A2258568759fb41CAE4934BBd2d04E26)) - 2025-08-05 13:35 UTC, upgrade of [L1StandardBridge](https://etherscan.io/address/0x386B76D9cA5F5Fb150B6BFB35CF5379B22B26dd8#code): transaction [0x12d1d0dde1bafad169722a0d6a42fafad00cacc19282bc0f7de4ad39b70afed1](https://etherscan.io/tx/0x12d1d0dde1bafad169722a0d6a42fafad00cacc19282bc0f7de4ad39b70afed1), implementations: [0xFF30d6E9acecc919e4E9e1A2e67980ee44Df6Ebb](https://etherscan.io/address/0xFF30d6E9acecc919e4E9e1A2e67980ee44Df6Ebb#code) ([diff](https://disco.l2beat.com/diff/eth:0x506aadcb7bF93E892a43208d879BAc076eBC97Ef/eth:0xFF30d6E9acecc919e4E9e1A2e67980ee44Df6Ebb)) - 2025-06-25 11:06 UTC, deployment of [SuperchainConfig](https://etherscan.io/address/0x097f99768A0a4a0A81bAbbCB1ea18193bA9D53cC#code): transaction [0x63366bb4d9f073e6f0e1de8495baf47a7e1921c02049305253907db5ac6839ca](https://etherscan.io/tx/0x63366bb4d9f073e6f0e1de8495baf47a7e1921c02049305253907db5ac6839ca), implementations: [0x4da82a327773965b8d4D85Fa3dB8249b387458E7](https://etherscan.io/address/0x4da82a327773965b8d4D85Fa3dB8249b387458E7#code) - 2025-05-12 16:00 UTC, deployment of [L1Block](https://explorer.zircuit.com/address/0x4200000000000000000000000000000000000015#code): transaction [0xe992e00998b34075506d2726a274db07a62af6cdd9d527bfda9128114603cfbd](https://explorer.zircuit.com/tx/0xe992e00998b34075506d2726a274db07a62af6cdd9d527bfda9128114603cfbd), implementations: [0xFf256497D61dcd71a9e9Ff43967C13fdE1F72D12](https://explorer.zircuit.com/address/0xFf256497D61dcd71a9e9Ff43967C13fdE1F72D12#code) - 2025-05-07 18:25 UTC, upgrade of [SystemConfig](https://etherscan.io/address/0x30F82a1Ca89226E8b8815d6EbB728e3b18a428ff#code): transaction [0x19f086f222696bf287600d456e602d10dd4a1db43027e97262e1abb52f347570](https://etherscan.io/tx/0x19f086f222696bf287600d456e602d10dd4a1db43027e97262e1abb52f347570), implementations: [0x795277B6aD8778E27aa70813157134cfC4a4D446](https://etherscan.io/address/0x795277B6aD8778E27aa70813157134cfC4a4D446#code) ([diff](https://disco.l2beat.com/diff/eth:0xA03E2f3Ee6dBa20411A2326D7FA9CCCc6a9A53de/eth:0x795277B6aD8778E27aa70813157134cfC4a4D446)) - 2025-04-23 14:46 UTC, upgrade of [OptimismPortal2](https://etherscan.io/address/0x17bfAfA932d2e23Bd9B909Fd5B4D2e2a27043fb1#code): transaction [0xe9ed64d1dc4bf02f583f912b831f46ae873996b36901c3b1180ac56c710e1d6f](https://etherscan.io/tx/0xe9ed64d1dc4bf02f583f912b831f46ae873996b36901c3b1180ac56c710e1d6f), implementations: [0x6335a030fdCBa6c5704a74EF3BeDdd6550c0375a](https://etherscan.io/address/0x6335a030fdCBa6c5704a74EF3BeDdd6550c0375a#code) ([diff](https://disco.l2beat.com/diff/eth:0xb6714d9808909b9383B09aD7Ea4Bc7E59b3B0E20/eth:0x6335a030fdCBa6c5704a74EF3BeDdd6550c0375a)) - 2025-04-23 14:46 UTC, upgrade of [L1CrossDomainMessenger](https://etherscan.io/address/0x2a721cBE81a128be0F01040e3353c3805A5EA091#code): transaction [0xe9ed64d1dc4bf02f583f912b831f46ae873996b36901c3b1180ac56c710e1d6f](https://etherscan.io/tx/0xe9ed64d1dc4bf02f583f912b831f46ae873996b36901c3b1180ac56c710e1d6f), implementations: [0xA5B66A9FBCE3d57dA2b3Bd764d0a05B95052f73F](https://etherscan.io/address/0xA5B66A9FBCE3d57dA2b3Bd764d0a05B95052f73F#code) ([diff](https://disco.l2beat.com/diff/eth:0x6c01D349d3010Cc2953fFA0A5e8d176fc273B834/eth:0xA5B66A9FBCE3d57dA2b3Bd764d0a05B95052f73F)) - 2025-04-23 14:46 UTC, upgrade of [L1StandardBridge](https://etherscan.io/address/0x386B76D9cA5F5Fb150B6BFB35CF5379B22B26dd8#code): transaction [0xe9ed64d1dc4bf02f583f912b831f46ae873996b36901c3b1180ac56c710e1d6f](https://etherscan.io/tx/0xe9ed64d1dc4bf02f583f912b831f46ae873996b36901c3b1180ac56c710e1d6f), implementations: [0x506aadcb7bF93E892a43208d879BAc076eBC97Ef](https://etherscan.io/address/0x506aadcb7bF93E892a43208d879BAc076eBC97Ef#code) ([diff](https://disco.l2beat.com/diff/eth:0xf829F2B0d741712198Aa3F0Be88b68Ec2aB5024b/eth:0x506aadcb7bF93E892a43208d879BAc076eBC97Ef)) - 2025-04-23 14:46 UTC, upgrade of [L1ERC721Bridge](https://etherscan.io/address/0x994eEb321F9cD79B077a5455fC248c77f30Dd244#code): transaction [0xe9ed64d1dc4bf02f583f912b831f46ae873996b36901c3b1180ac56c710e1d6f](https://etherscan.io/tx/0xe9ed64d1dc4bf02f583f912b831f46ae873996b36901c3b1180ac56c710e1d6f), implementations: [0xDF129ECFc63Af454F62b69d03C0f0E21e69bcDAb](https://etherscan.io/address/0xDF129ECFc63Af454F62b69d03C0f0E21e69bcDAb#code) ([diff](https://disco.l2beat.com/diff/eth:0x3B21dC86c412aC34fF4c679497b274509D73cDcC/eth:0xDF129ECFc63Af454F62b69d03C0f0E21e69bcDAb)) - 2025-02-12 09:23 UTC, upgrade of [OptimismPortal2](https://etherscan.io/address/0x17bfAfA932d2e23Bd9B909Fd5B4D2e2a27043fb1#code): transaction [0x19e7944c32b28126488482597f707797b60c4c3201abacdba5b9ea00b31cfbb4](https://etherscan.io/tx/0x19e7944c32b28126488482597f707797b60c4c3201abacdba5b9ea00b31cfbb4), implementations: [0xb6714d9808909b9383B09aD7Ea4Bc7E59b3B0E20](https://etherscan.io/address/0xb6714d9808909b9383B09aD7Ea4Bc7E59b3B0E20#code) ([diff](https://disco.l2beat.com/diff/eth:0xde8B916B972cE3c27C21157Fc2b107c413062b9d/eth:0xb6714d9808909b9383B09aD7Ea4Bc7E59b3B0E20)) - 2025-02-12 09:23 UTC, upgrade of [L1StandardBridge](https://etherscan.io/address/0x386B76D9cA5F5Fb150B6BFB35CF5379B22B26dd8#code): transaction [0x19e7944c32b28126488482597f707797b60c4c3201abacdba5b9ea00b31cfbb4](https://etherscan.io/tx/0x19e7944c32b28126488482597f707797b60c4c3201abacdba5b9ea00b31cfbb4), implementations: [0xf829F2B0d741712198Aa3F0Be88b68Ec2aB5024b](https://etherscan.io/address/0xf829F2B0d741712198Aa3F0Be88b68Ec2aB5024b#code) ([diff](https://disco.l2beat.com/diff/eth:0xA4ba8bd753695B6121722CBB7cd81c71BCFBCA28/eth:0xf829F2B0d741712198Aa3F0Be88b68Ec2aB5024b)) - 2024-09-17 16:43 UTC, deployment of [L1ERC20TokenBridge](https://etherscan.io/address/0x912C7271a6A3622dfb8B218eb46a6122aB046C79#code): transaction [0x7ce2acc826dbccea48fc0d45858f428df245e825147aa96c020b57c71f5b6c96](https://etherscan.io/tx/0x7ce2acc826dbccea48fc0d45858f428df245e825147aa96c020b57c71f5b6c96), implementations: [0x6bc726C993103197C41d787dd72eCd4D2e1614E8](https://etherscan.io/address/0x6bc726C993103197C41d787dd72eCd4D2e1614E8#code) - 2024-07-17 12:11 UTC, upgrade of [OptimismPortal2](https://etherscan.io/address/0x17bfAfA932d2e23Bd9B909Fd5B4D2e2a27043fb1#code): transaction [0x472c4b57b3828c3f8a846702da5707eccb216d672b4ede4eb4186ffe606b14b3](https://etherscan.io/tx/0x472c4b57b3828c3f8a846702da5707eccb216d672b4ede4eb4186ffe606b14b3), implementations: [0xde8B916B972cE3c27C21157Fc2b107c413062b9d](https://etherscan.io/address/0xde8B916B972cE3c27C21157Fc2b107c413062b9d#code) ([diff](https://disco.l2beat.com/diff/eth:0x304a52C8354f323672191Ebf1347Cd3d494Ea830/eth:0xde8B916B972cE3c27C21157Fc2b107c413062b9d)) - 2024-07-17 12:11 UTC, upgrade of [L1StandardBridge](https://etherscan.io/address/0x386B76D9cA5F5Fb150B6BFB35CF5379B22B26dd8#code): transaction [0x472c4b57b3828c3f8a846702da5707eccb216d672b4ede4eb4186ffe606b14b3](https://etherscan.io/tx/0x472c4b57b3828c3f8a846702da5707eccb216d672b4ede4eb4186ffe606b14b3), implementations: [0xA4ba8bd753695B6121722CBB7cd81c71BCFBCA28](https://etherscan.io/address/0xA4ba8bd753695B6121722CBB7cd81c71BCFBCA28#code) ([diff](https://disco.l2beat.com/diff/eth:0xE14b12F4843447114A093D99Dc9322b93a967DE6/eth:0xA4ba8bd753695B6121722CBB7cd81c71BCFBCA28)) - 2024-07-16 08:48 UTC, upgrade of [OptimismPortal2](https://etherscan.io/address/0x17bfAfA932d2e23Bd9B909Fd5B4D2e2a27043fb1#code): transaction [0xf3c21a1c1d5df7cd11018e70254ed8b78bba36107c8231dfee6ff1b1c5702196](https://etherscan.io/tx/0xf3c21a1c1d5df7cd11018e70254ed8b78bba36107c8231dfee6ff1b1c5702196), implementations: [0x304a52C8354f323672191Ebf1347Cd3d494Ea830](https://etherscan.io/address/0x304a52C8354f323672191Ebf1347Cd3d494Ea830#code) ([diff](https://disco.l2beat.com/diff/eth:0x8Ab1b1E21c2f229a7bB1430CF3ADfb0644a69ab7/eth:0x304a52C8354f323672191Ebf1347Cd3d494Ea830)) - 2024-07-16 08:48 UTC, upgrade of [L1StandardBridge](https://etherscan.io/address/0x386B76D9cA5F5Fb150B6BFB35CF5379B22B26dd8#code): transaction [0xf3c21a1c1d5df7cd11018e70254ed8b78bba36107c8231dfee6ff1b1c5702196](https://etherscan.io/tx/0xf3c21a1c1d5df7cd11018e70254ed8b78bba36107c8231dfee6ff1b1c5702196), implementations: [0xE14b12F4843447114A093D99Dc9322b93a967DE6](https://etherscan.io/address/0xE14b12F4843447114A093D99Dc9322b93a967DE6#code) ([diff](https://disco.l2beat.com/diff/eth:0x0Fc6203310c494963eBAdd1157780a613B67eCDf/eth:0xE14b12F4843447114A093D99Dc9322b93a967DE6)) - 2024-07-16 08:48 UTC, upgrade of [L1StandardBridge](https://etherscan.io/address/0x386B76D9cA5F5Fb150B6BFB35CF5379B22B26dd8#code): transaction [0xf3c21a1c1d5df7cd11018e70254ed8b78bba36107c8231dfee6ff1b1c5702196](https://etherscan.io/tx/0xf3c21a1c1d5df7cd11018e70254ed8b78bba36107c8231dfee6ff1b1c5702196), implementations: [0x0Fc6203310c494963eBAdd1157780a613B67eCDf](https://etherscan.io/address/0x0Fc6203310c494963eBAdd1157780a613B67eCDf#code) ([diff](https://disco.l2beat.com/diff/eth:0x7409668285336dBBe720bE3525AEe372Fce4c2ab/eth:0x0Fc6203310c494963eBAdd1157780a613B67eCDf)) - 2024-07-02 16:13 UTC, deployment of [OptimismPortal2](https://etherscan.io/address/0x17bfAfA932d2e23Bd9B909Fd5B4D2e2a27043fb1#code): transaction [0x67e7390665dd0d4d9d7ad86cf3ae11c0dce8d7538b69d5fc15d176b36474e08f](https://etherscan.io/tx/0x67e7390665dd0d4d9d7ad86cf3ae11c0dce8d7538b69d5fc15d176b36474e08f), implementations: [0x8Ab1b1E21c2f229a7bB1430CF3ADfb0644a69ab7](https://etherscan.io/address/0x8Ab1b1E21c2f229a7bB1430CF3ADfb0644a69ab7#code) - 2024-07-02 16:12 UTC, deployment of [L1CrossDomainMessenger](https://etherscan.io/address/0x2a721cBE81a128be0F01040e3353c3805A5EA091#code): transaction [0xba20c00dc03b009737ebbcaa3db1263524a1322c5984a4f51fbf7c4ebc979575](https://etherscan.io/tx/0xba20c00dc03b009737ebbcaa3db1263524a1322c5984a4f51fbf7c4ebc979575), implementations: [0x6c01D349d3010Cc2953fFA0A5e8d176fc273B834](https://etherscan.io/address/0x6c01D349d3010Cc2953fFA0A5e8d176fc273B834#code) - 2024-07-02 16:12 UTC, deployment of [OptimismMintableERC20Factory](https://etherscan.io/address/0xc77ece87C91C44AFb5f19638f9a0F75b5d90E932#code): transaction [0x25c6d394396aef5f15c5f4fd388c8ebf206b71dfe6ced6d1933573016d7cee77](https://etherscan.io/tx/0x25c6d394396aef5f15c5f4fd388c8ebf206b71dfe6ced6d1933573016d7cee77), implementations: [0xf885DA6A3B4c93905b02f36f9a13680922A554b0](https://etherscan.io/address/0xf885DA6A3B4c93905b02f36f9a13680922A554b0#code) - 2024-07-02 16:12 UTC, deployment of [L1ERC721Bridge](https://etherscan.io/address/0x994eEb321F9cD79B077a5455fC248c77f30Dd244#code): transaction [0xd6346f4354e7b4f58d6ef747d0ac04afa4c80319963ac187a69403ff1dcebdc8](https://etherscan.io/tx/0xd6346f4354e7b4f58d6ef747d0ac04afa4c80319963ac187a69403ff1dcebdc8), implementations: [0x3B21dC86c412aC34fF4c679497b274509D73cDcC](https://etherscan.io/address/0x3B21dC86c412aC34fF4c679497b274509D73cDcC#code) - 2024-07-02 16:11 UTC, deployment of [L1StandardBridge](https://etherscan.io/address/0x386B76D9cA5F5Fb150B6BFB35CF5379B22B26dd8#code): transaction [0xd13642194be1a1b8947f8d3cd1504ec56ca67f4ba953cc45e4f135fb118a46f7](https://etherscan.io/tx/0xd13642194be1a1b8947f8d3cd1504ec56ca67f4ba953cc45e4f135fb118a46f7), implementations: [0x7409668285336dBBe720bE3525AEe372Fce4c2ab](https://etherscan.io/address/0x7409668285336dBBe720bE3525AEe372Fce4c2ab#code) - 2024-07-02 16:11 UTC, deployment of [SystemConfig](https://etherscan.io/address/0x30F82a1Ca89226E8b8815d6EbB728e3b18a428ff#code): transaction [0x9cebd2cdbd71bf96668e003794de90cf09858ccebb8f93c41e3d7822df207505](https://etherscan.io/tx/0x9cebd2cdbd71bf96668e003794de90cf09858ccebb8f93c41e3d7822df207505), implementations: [0xA03E2f3Ee6dBa20411A2326D7FA9CCCc6a9A53de](https://etherscan.io/address/0xA03E2f3Ee6dBa20411A2326D7FA9CCCc6a9A53de#code) ## Updates Each date links the update on the HTML page, which also shows its contract diffs. ### [2026-09-30 14:35 UTC](https://l2beat.com/layer2s/projects/zircuit?update=3d616d5d) (high severity, 212 changes) Upgrade 19b "Karst" (op-contracts/v7.0.0): core L1 contracts upgraded to their v7 implementations (OptimismPortal2, SystemConfig, DisputeGameFactory, AnchorStateRegistry, bridges, etc.), executed via a Conduit-deployed OPContractsManagerV2 (v7.1.17). The chain remains on permissioned fault proofs (respected game type 1); it did not move to CANNON_KONA. ProxyAdmin replaced, owner unchanged (Conduit Multisig 1). AddressManager added. New DelayedWETH. PermissionedDisputeGame, MIPS (v1.9.0 to v1.10.1) and PreimageOracle (v1.1.4 to v1.1.5) replaced. Proposer, challenger and absolute prestate unchanged. SystemConfig `batchInbox` changed. L1Block upgraded from v1.6.1 to v1.7.0 (Jovian network upgrade): adds `setL1BlockValuesJovian()` and `daFootprintGasScalar` (`400`). L2ProxyAdmin upgraded to v1.0.0 (Karst L2 network upgrade), owner unchanged. ### [2026-08-26 12:26 UTC](https://l2beat.com/layer2s/projects/zircuit?update=51c18243) (22 changes) OP-stack storage surgery performed on L1StandardBridge: https://tools.l2beat.com/decoder-new/?hash=0xa2c6d7a895f7793beb83cd3f0734b427fea4982e2ed35044555c52bf3a8a8a23&data=AwA that manually overwritten bridge storage slots. Until Aug 4, 2026, Zircuit ran a modified bridge implementation that never maintained the OP-stack deposits accounting, after the migration to standard OP-stack contracts correct escrow balances had to be set for the following 12 tokens: ZRC, WETH, WBTC, USDT, USDC, weETH, weETHs, mETH, LsETH, FBTC, LBTC, GUD. This was verifeid by reproducing corresponding storage slots and comparing with the values in the transaction above. Also, updated conduit ms and verified sources for L1Block contract on zircuit. ### [2026-08-19 09:58 UTC](https://l2beat.com/layer2s/projects/zircuit?update=ad8ff8f2) (high severity, 8 changes) SuperchainConfig implementation upgraded v2.4.0 → v2.4.2 ([diff](https://disco.l2beat.com/diff/eth:0xb08Cc720F511062537ca78BdB0AE691F04F5a957/eth:0xE4F9779ab53070a55db24dFAeFf9AF147c6ED550)) via a StorageSetter step in one transaction. Guardian unchanged (Conduit Multisig 1). ### [2026-08-12 10:29 UTC](https://l2beat.com/layer2s/projects/zircuit?update=6dd5a1f4) (high severity, 198 changes) HIGH SEVERITY. Full migration off Zircuit's custom OP-stack fork onto a standard OP-stack fault-proof deployment, via 6 batched upgrade txs 2026-08-04 13:31-14:16 UTC. Matches Zircuit's public Conduit RaaS migration announced 2026-07-02. Checked $pastUpgrades for a bounce/rollback pattern: none found, intermediate hops are Optimism's shared StorageSetter contract used transiently within each batch tx. Admin control moved from Zircuit's own two multisigs (both deleted) to Conduit's shared multisig (4-of-10): zero signer overlap with the old multisigs, and already admin on ~25 other Conduit-hosted L2Beat projects. Now owner of SystemConfig, guardian of OptimismPortal2, owner of ProxyAdmin. superchainConfig now points to Conduit's shared SuperchainConfigFake_expiry (used by 11 other tracked projects). Old escape hatch removed entirely: L2OutputOracle, ResolverRegistry, local SuperchainConfig fork, and both SP1 verifiers are gone (permissionless exit via merkle proof/resolver after 1mo of no state updates no longer exists). Replaced by standard fault-proof stack: DisputeGameFactory, PermissionedDisputeGame (proposer+challenger permissioned, not yet open), AnchorStateRegistry, MIPS, PreimageOracle, DelayedWETH. proofMaturityDelaySeconds 604800 (7d), disputeGameFinalityDelaySeconds 302400 (3.5d). Version jumps: OptimismPortal2 2.2.0 -> 5.1.1, SystemConfig 1.12.0 -> 3.11.0, L1CrossDomainMessenger 2.4.0 -> 2.11.0, L1StandardBridge 2.3.0 -> 2.8.0, L1ERC721Bridge 2.2.0 -> 2.9.0. L1Block predeploy on L2 shows unverified: Zircuit's block explorer switched from Blockscout to Conduit's native explorer (explorer.zircuit.com). Confirmed via Conduit's own contract-verification API that this predeploy has no source match there yet - a real gap on the new explorer, not an L2Beat-side flake. Diff (OptimismPortal2): https://disco.l2beat.com/diff/eth:0xF7209f5471628aC5f68FE4ae98Feb7f02E0f40Be/eth:0x7Cf803296662e8C72A6C1d6450572209aCF7f202 Diff (SystemConfig): https://disco.l2beat.com/diff/eth:0xaFD10586f3F2cB2aD34E8196563424a3a93EbE9F/eth:0x2fA28989fc559836E9d66dFf3010C7F7f41c65ED ### [2026-07-30 11:07 UTC](https://l2beat.com/layer2s/projects/zircuit?update=f96252b2) (1 change) Zircuit Multisig 2 rotated one signer (`0x3880...8679` -> `0xf5B2...c1ae`); threshold remains 2/5. ### [2026-06-02 11:15 UTC](https://l2beat.com/layer2s/projects/zircuit?update=935c8aa9) (4 changes) Zircuit Multisig 1 rotated two signers (`$members[0]` and `$members[5]`). ### [2026-03-25 10:04 UTC](https://l2beat.com/layer2s/projects/zircuit?update=09fd5612) (high severity, 5 changes) L2OutputOracle was upgraded twice in the same transaction. The proposer address was changed from 0xE8C20EA8eF100d7aa3846616E5D07A5aBb067C65 to 0x691b3588eB87E6163260650D3BB465883EB6A575. ### [2026-02-27 13:19 UTC](https://l2beat.com/layer2s/projects/zircuit?update=704727cd) (3 changes) SP1MockVerifierWithHash (a no-op verifier that accepts all proofs) was added to the SP1VerifierGateway with selector 0xffffffff. Proof verification can be bypassed by the proposer via this selector; safety then depends on challenger intervention before finalization. The mock verifier's `verifyProof` function has an empty body with comment `// accept everything`. Diff with a real verifier: https://disco.l2beat.com/diff/eth:0x50ACFBEdecf4cbe350E1a86fC6f03a821772f1e5/eth:0xb4bd9A37998576C2FfD863b6dc9E0124021B8739 ### [2026-02-13 14:32 UTC](https://l2beat.com/layer2s/projects/zircuit?update=38dbe903) (14 changes) Zircuit Multisig 1 signer rotation: 3 signers removed, 3 replaced. Threshold reduced from 6/8 (75%) to 4/6 (67%). Same change reflected on both Ethereum and Zircuit chain instances of the multisig. ### [2025-12-05 11:39 UTC](https://l2beat.com/layer2s/projects/zircuit?update=4907857a) (2 changes) Increased operator fee. ### [2025-11-25 08:32 UTC](https://l2beat.com/layer2s/projects/zircuit?update=7ea99626) (high severity, 36 changes) minor upgrade for fusaka changes and cleanup of the bootstrapv2 functions + removal of the 'keepalive' proof circumvention: SystemConfig: https://disco.l2beat.com/diff/eth:0x83085450544c3F360a40720859EbB1bfd311584D/eth:0xaFD10586f3F2cB2aD34E8196563424a3a93EbE9F L1StandardBridge: https://disco.l2beat.com/diff/eth:0xFF30d6E9acecc919e4E9e1A2e67980ee44Df6Ebb/eth:0x25DF2d6DDCa09C0f9Fce19373896be075F4f7d98 L2OutputOracle: https://disco.l2beat.com/diff/eth:0x6AB82bb139383BB758348fBb81EdA57458e59f65/eth:0x5E66C2820666f4Fb490d2D2edE4dCB0E46CD03C6 - keepalive removed - aggregationvkey changed to `0x0050b72e60cf8aef095d5718413fd32e1c18d0e54ebc4b9f560cf1cd93dd2605` ### [2025-11-04 17:12 UTC](https://l2beat.com/layer2s/projects/zircuit?update=87c7157b) (2 changes) msig changes. ### [2025-10-29 17:10 UTC](https://l2beat.com/layer2s/projects/zircuit?update=e61ef693) (2 changes) Discovery rerun on the same block number with only config-related changes. ### [2025-10-29 17:10 UTC](https://l2beat.com/layer2s/projects/zircuit?update=0bc95f09) (2 changes) removed the actor that can pause withdrawals (but not unpause them). the admin msig can still pause. ### [2025-08-29 07:17 UTC](https://l2beat.com/layer2s/projects/zircuit?update=0847e00f) (2 changes) Increased L2 fees by adding a constant and a scalar. ### [2025-08-29 07:17 UTC](https://l2beat.com/layer2s/projects/zircuit?update=f2d3a101) (2 changes) Updated fee parameters. ### [2025-08-25 11:22 UTC](https://l2beat.com/layer2s/projects/zircuit?update=fde733e2) (high severity, 41 changes) - [SystemConfig](https://disco.l2beat.com/diff/eth:0x795277B6aD8778E27aa70813157134cfC4a4D446/eth:0x83085450544c3F360a40720859EbB1bfd311584D): added a `setEIP1559Params` function to update denominator and elasticity params. - [OptimismPortal](https://disco.l2beat.com/diff/eth:0xA0A36095A2258568759fb41CAE4934BBd2d04E26/eth:0xF7209f5471628aC5f68FE4ae98Feb7f02E0f40Be): additional check in `proveWithdrawalTransaction`, nothing significant. Ignore changes related to interfaces. - [L2OutputOracle](https://disco.l2beat.com/diff/eth:0xb82E8B7B3a93290EE38dB201686AbDc9FDF6A315/eth:0x6AB82bb139383BB758348fBb81EdA57458e59f65): biggest change as it now supports SP1, but it is currently not used. A check has been added to the .ts file to detect when it gets used. ### [2025-08-07 11:45 UTC](https://l2beat.com/layer2s/projects/zircuit?update=fd143872) (high severity, 64 changes) Major upgrade. New escape hatch in case there are no state updates for 30d. Unverified state roots by the operator are allowed after 4h of no new proposed state roots. Escapes for ETH and ERC20s can be done with state / storage merkle proofs for each account / erc20 balanceOf. DeFi contracts can register 'Resolvers' directly from L2 or by their deployer on L1 who are permissioned to partition a pooled balance of a single L2 contract between multiple users. [OptimismPortal](https://disco.l2beat.com/diff/eth:0x6335a030fdCBa6c5704a74EF3BeDdd6550c0375a/eth:0xA0A36095A2258568759fb41CAE4934BBd2d04E26) - deposit Exclusions in `encodeSetL1BlockValuesEcotoneExclusions()` - `escapeETH()` and -WETH added: allows withdrawing full balance after 30 day state update liveness failure (`timeLimitOutputRootSubmissionSeconds`) with state and storage (merkle-) proofs. [L1StandardBridge](https://disco.l2beat.com/diff/eth:0x506aadcb7bF93E892a43208d879BAc076eBC97Ef/eth:0xFF30d6E9acecc919e4E9e1A2e67980ee44Df6Ebb) - escapeERC20: escape function after 30d liveness fail for ERC20 tokens [L2OutputOracle](https://disco.l2beat.com/diff/eth:0xeE646fEA9b1D7f89ae92266c5d7E799158416ca4/eth:0xb82E8B7B3a93290EE38dB201686AbDc9FDF6A315) - `setTimeLimitOutputRootSubmissionSeconds()` onlyOwner, set escape threshold - bootstrapV2() still exists (allowing permissioned state proposal without proof after short liveness fail) - new output root proposal disallowed after `timeLimitOutputRootSubmissionSeconds` has passed - finality logic for deleting outputs is now `block.timestamp >= finalizationTimestamp && (pausedTimestamp == 0 || pausedTimestamp >= finalizationTimestamp)` [SuperchainConfig](https://disco.l2beat.com/diff/eth:0xA47314C96ab9572af656788e15143B459F99AE0f/eth:0x70D688D4Bd6B1b195aE51040b54ab501278D1d31) - support paused timeslot and pausedSince() ### [2025-07-28 07:29 UTC](https://l2beat.com/layer2s/projects/zircuit?update=bdf02ce3) (6 changes) Discovery rerun on the same block number with only config-related changes. ### [2025-07-28 07:29 UTC](https://l2beat.com/layer2s/projects/zircuit?update=1e66f499) (4 changes) L2 fee changes. ### [2025-07-14 12:47 UTC](https://l2beat.com/layer2s/projects/zircuit?update=2a7ebb46) (3 changes) Discovery rerun on the same block number with only config-related changes. ### [2025-07-14 12:47 UTC](https://l2beat.com/layer2s/projects/zircuit?update=8d689232) (14 changes) Discovery rerun on the same block number with only config-related changes. ### [2025-06-23 07:43 UTC](https://l2beat.com/layer2s/projects/zircuit?update=23feb95e) (3 changes) Initial discovery to check L1->L2 exclusions. ### [2025-06-18 11:51 UTC](https://l2beat.com/layer2s/projects/zircuit?update=f27464b6) (high severity, 13 changes) New verifier with new digest/vKey. No change to the backdoor / dummy proofs in the other active verifier. ### [2025-05-08 09:49 UTC](https://l2beat.com/layer2s/projects/zircuit?update=b08f3659) (high severity, 15 changes) Minor upgrade to SystemConfig and the VerifierV2. ### [2025-04-24 08:37 UTC](https://l2beat.com/layer2s/projects/zircuit?update=f7eee53c) (high severity, 46 changes) Upgrades to most system contracts with minor changes: - 7702 compatibility - library (Math) - gas limit and l2 gas calculations ### [2025-03-11 11:59 UTC](https://l2beat.com/layer2s/projects/zircuit?update=914b5726) (high severity, 27 changes) as a part of [the Garfield mainnet upgrade](https://www.zircuit.com/blog/zircuit-technical-roadmap-part-i-performant-provers), a new verifier without dummy proof support is deployed. This upgrade only affects L2OutputOracle and the associated proof system. #### L2OutputOracle - `proposeL2OutputV2()`, `verifyV2()` added. these target the new verifierV2 which does not accept empty proofs like the previous one - `bootstrapV2()` added: this fn is a permissioned switch to migrate from the old to the new verifier. but it can also be called after already having migrated by the permissioned proposer if `withdrawalKeepalivePeriodSeconds` have passed without any state update. can be used as a backdoor because it accepts l2 outputs without proof. ### [2025-02-12 11:31 UTC](https://l2beat.com/layer2s/projects/zircuit?update=c2f11641) (high severity, 20 changes) System contracts upgrade: OptimismPortal, L1StandardBridge: transferThrottle removed. L2OutputOracle: `getL2OutputRootWithFinalization()` added which independently from the OptiPortal returns the finalization status of state roots. ### [2025-01-06 09:06 UTC](https://l2beat.com/layer2s/projects/zircuit?update=ff23fc41) (1 change) Add external wsteth escrow (matches template). ### [2024-12-12 18:36 UTC](https://l2beat.com/layer2s/projects/zircuit?update=76b39cd8) (3 changes) Changed finalization period from 5 hours to 4. Throttling checks are disabled since ethThrottleWithdrawals.maxAmountPerPeriod is set to 0. ### [2024-12-05 05:56 UTC](https://l2beat.com/layer2s/projects/zircuit?update=e0eb3aee) (high severity, 5 changes) Minor upgrade to the verifier to support another type of dummy proof (`0xFFFF`). ``` if (_proof.length == 2 && (bytes2(_proof) == 0xDEAD || bytes2(_proof) == 0xFFFF)) { return bytes(""); } ``` ### [2024-09-25 10:35 UTC](https://l2beat.com/layer2s/projects/zircuit?update=112dc163) (4 changes) Limits changed. The maximum total deposit limit is removed (unlimited) and withdrawal limits per period are raised. ### [2024-08-22 13:57 UTC](https://l2beat.com/layer2s/projects/zircuit?update=662035a5) (17 changes) The Guardian Multisig (2/5) and Zircuit Multisig (6/8) now have more members and higher threshold. Previously the Zircuit Multisig was a 1/3 and we've missed adding the warning. ### [2024-08-19 15:36 UTC](https://l2beat.com/layer2s/projects/zircuit?update=a2a853b3) (3 changes) Increased their withdrawal limits for ETH (amount that can be withdrawn before getting throttled) to 500 ETH and the deposit limit to 50 ETH. ### [2024-08-13 11:18 UTC](https://l2beat.com/layer2s/projects/zircuit?update=f78cba9a) (high severity, 2 changes) Nothing significant has changed, likely a small upgrade to the circuit ### [2024-08-09 11:46 UTC](https://l2beat.com/layer2s/projects/zircuit?update=7ab8f334) (12 changes) Initial discovery: Fork from the latest pre-FP OP stack contracts with added ZK proofs. ## Operator ### The system has a centralized operator The operator is the only entity that can propose blocks. A live and trustworthy operator is vital to the health of the system. **Risks** - MEV can be extracted if the operator exploits their centralized position and frontruns user transactions. ### Users can force any transaction Because the state of the system is based on transactions submitted on the underlying host chain and anyone can submit their transactions there it allows the users to circumvent censorship by interacting with the smart contract on the host chain directly. **References** - [Sequencing Window - OP Mainnet Specs](https://github.com/ethereum-optimism/optimism/blob/51eeb76efeb32b3df3e978f311188aa29f5e3e94/specs/glossary.md#sequencing-window) - [OptimismPortal2.sol - source code, depositTransaction function](https://explorer.zircuit.com/address/0xe89F13c5ee4033B2D3cD76C9d6958eFBfe26D3C2#code) ## Withdrawals ### Regular exits The user initiates the withdrawal by submitting a regular transaction on this chain. When a state root containing such transaction is settled, the funds become available for withdrawal on L1 after 3d 12h. Withdrawal inclusion can be proven before state root settlement, but a 7d period has to pass before it becomes actionable. The process of state root settlement takes a challenge period of at least 3d 12h to complete. Finally the user submits an L1 transaction to claim the funds. This transaction requires a merkle proof. **References** - [OptimismPortal2.sol - Etherscan source code, proveWithdrawalTransaction function](https://etherscan.io/address/0xe89F13c5ee4033B2D3cD76C9d6958eFBfe26D3C2#code) - [OptimismPortal2.sol - Etherscan source code, finalizeWithdrawalTransaction function](https://etherscan.io/address/0xe89F13c5ee4033B2D3cD76C9d6958eFBfe26D3C2#code) ### Forced messaging If the user experiences censorship from the operator with regular L2->L1 messaging they can submit their messages directly on L1. The system is then obliged to service this request or halt all messages, including forced withdrawals from L1 and regular messages initiated on L2. Once the force operation is submitted and if the request is serviced, the operation follows the flow of a regular message. **References** - [Forced withdrawal from an OP Stack blockchain](https://docs.optimism.io/stack/transactions/forced-transaction) ## Other considerations ### EVM compatible smart contracts are supported OP stack chains are pursuing the EVM Equivalence model. No changes to smart contracts are required regardless of the language they are written in, i.e. anything deployed on L1 can be deployed on L2. **References** - [Introducing EVM Equivalence](https://medium.com/ethereum-optimism/introducing-evm-equivalence-5c2021deb306) ## Permissions Explore these contracts and permissions in Disco, L2BEAT's contract explorer: https://disco.l2beat.com/ui/p/zircuit ### Ethereum #### Actors ##### Conduit Multisig 1 Addresses: [0x4a4962275DF8C60a80d3a25faEc5AA7De116A746](https://etherscan.io/address/0x4a4962275DF8C60a80d3a25faEc5AA7De116A746) A Multisig with 4/11 threshold. - Can upgrade **with no delay** - SuperchainConfig [via: ProxyAdmin] - OptimismPortal2 [via: ProxyAdmin] - AnchorStateRegistry [via: ProxyAdmin] - L1CrossDomainMessenger [via: ProxyAdmin] - SystemConfig [via: ProxyAdmin] - L1StandardBridge [via: ProxyAdmin] - DelayedWETH [via: ProxyAdmin] - DisputeGameFactory [via: ProxyAdmin] - L1ERC721Bridge [via: ProxyAdmin] - OptimismMintableERC20Factory [via: ProxyAdmin] - Can interact with SuperchainConfig - Allowed to pause withdrawals. In op stack systems with a proof system, the Guardian can also blacklist dispute games and set the respected game type (permissioned / permissionless) - Can interact with SystemConfig - it can update the preconfer address, the batch submitter (Sequencer) address and the gas configuration of the system - Can interact with DisputeGameFactory - Allowed to challenge or delete state roots proposed by a Proposer - set the dispute game implementation and initial bond for any game type - Can interact with AddressManager - set and change address mappings [via: ProxyAdmin] Participants (11): [0x9402c42dB162d5a0927c032136f40Cc9C71853F2](https://etherscan.io/address/0x9402c42dB162d5a0927c032136f40Cc9C71853F2), [0xcdC931935768c0562AfE989A366a3Dc4d52F4853](https://etherscan.io/address/0xcdC931935768c0562AfE989A366a3Dc4d52F4853), [0xA9FCCc53F1c9095DA867Bd648683F8bdCcc78d09](https://etherscan.io/address/0xA9FCCc53F1c9095DA867Bd648683F8bdCcc78d09), [0x6BB4249858Ee19b6ABC071AD26bEe690baa783A6](https://etherscan.io/address/0x6BB4249858Ee19b6ABC071AD26bEe690baa783A6), [0x2103c69696CB2D3779f5445393808239034E911c](https://etherscan.io/address/0x2103c69696CB2D3779f5445393808239034E911c), [0x81175155D85377C337d92f1FA52Da166C3A4E7Ac](https://etherscan.io/address/0x81175155D85377C337d92f1FA52Da166C3A4E7Ac), [0xA0737fea60F0601A192E3d2c98865A883ab0bda2](https://etherscan.io/address/0xA0737fea60F0601A192E3d2c98865A883ab0bda2), [0xF3313C48BD8E17b823d5498D62F37019dFEA647D](https://etherscan.io/address/0xF3313C48BD8E17b823d5498D62F37019dFEA647D), [0xa0C600a6e85bf225958FFAcC70B5FDDF9A059038](https://etherscan.io/address/0xa0C600a6e85bf225958FFAcC70B5FDDF9A059038), [0xefCf0c8faFB425997870f845e26fC6cA6EE6dD5C](https://etherscan.io/address/0xefCf0c8faFB425997870f845e26fC6cA6EE6dD5C), [0x4D8007a0E9f293e62E2b0F43C6Cf4C4B9e135BAe](https://etherscan.io/address/0x4D8007a0E9f293e62E2b0F43C6Cf4C4B9e135BAe) Used in: [Aevo](https://l2beat.com/layer2s/projects/aevo#Conduit%20Multisig%201), [Ancient8](https://l2beat.com/layer2s/projects/ancient8#Conduit%20Multisig%201), [Gravity](https://l2beat.com/layer2s/projects/galxegravity#Conduit%20Multisig%201), [Katana](https://l2beat.com/layer2s/projects/katana#Conduit%20Multisig%201), [Lasernet](https://l2beat.com/layer2s/projects/lasernet#Conduit%20Multisig%201), [Metal](https://l2beat.com/layer2s/projects/metal#Conduit%20Multisig%201), [Mode Network](https://l2beat.com/layer2s/projects/mode#Conduit%20Multisig%201), [Nillion](https://l2beat.com/layer2s/projects/nillion#Conduit%20Multisig%201), [Orderly Network](https://l2beat.com/layer2s/projects/orderly#Conduit%20Multisig%201), [Pepe Unchained](https://l2beat.com/layer2s/projects/pepe-unchained#Conduit%20Multisig%201), [Phala](https://l2beat.com/layer2s/projects/phala#Conduit%20Multisig%201), [Plume Network](https://l2beat.com/layer2s/projects/plumenetwork#Conduit%20Multisig%201), [Ronin](https://l2beat.com/layer2s/projects/ronin-network#Conduit%20Multisig%201), [Reya](https://l2beat.com/layer2s/projects/reya#Conduit%20Multisig%201), [Superseed](https://l2beat.com/layer2s/projects/superseed#Conduit%20Multisig%201), [Zora](https://l2beat.com/layer2s/projects/zora#Conduit%20Multisig%201) ##### EOA 1 Addresses: [0x2d14057c3ad6b04a480b06Da2356AdcdF5Ed97eE](https://etherscan.io/address/0x2d14057c3ad6b04a480b06Da2356AdcdF5Ed97eE) - Can interact with DisputeGameFactory - Allowed to post new state roots of the current layer to the host chain ##### EOA 2 Addresses: [0xCf8225801DF6Ef90aD3bc86808F574403A309de8](https://etherscan.io/address/0xCf8225801DF6Ef90aD3bc86808F574403A309de8) - Can interact with SystemConfig - Allowed to commit transactions from the current layer to the host chain ### Zircuit #### Actors ##### EOA 3 Addresses: [0x5b5A62275DF8c60A80D3a25FAeC5aA7De116b857](https://explorer.zircuit.com/address/0x5b5A62275DF8c60A80D3a25FAeC5aA7De116b857) - Can upgrade **with no delay** - L1Block [via: L2ProxyAdmin] - L2ProxyAdmin [via: L2ProxyAdmin] ## Smart contracts ![A diagram of the smart contract architecture](https://l2beat.com/static/images/architecture/zircuit.b1ce8f74.png) Explore these contracts and permissions in Disco, L2BEAT's contract explorer: https://disco.l2beat.com/ui/p/zircuit ### Ethereum #### OptimismPortal2 (escrow) Addresses: [0x17bfAfA932d2e23Bd9B909Fd5B4D2e2a27043fb1](https://etherscan.io/address/0x17bfAfA932d2e23Bd9B909Fd5B4D2e2a27043fb1#code), [0xe89F13c5ee4033B2D3cD76C9d6958eFBfe26D3C2](https://etherscan.io/address/0xe89F13c5ee4033B2D3cD76C9d6958eFBfe26D3C2#code) (Implementation (Upgradable)), [0x3A317fCEE068868BE7628eFb233170df2DD5B71d](https://etherscan.io/address/0x3A317fCEE068868BE7628eFb233170df2DD5B71d#code) (Admin) **Past upgrades** (Count of upgrades: 18, Last upgrade: 29d 14h ago, Avg upgrade interval: 1mo 14d) - 2026-09-17 09:31 UTC, upgrade of [OptimismPortal2](https://etherscan.io/address/0x17bfAfA932d2e23Bd9B909Fd5B4D2e2a27043fb1#code): transaction [0x4f58067dd453c8a1bcf79ecca906ec4148586a00bab8b68621c88ad97fea3dbc](https://etherscan.io/tx/0x4f58067dd453c8a1bcf79ecca906ec4148586a00bab8b68621c88ad97fea3dbc), implementations: [0x97cEbbf8959e2A5476fbe9B98A21806Ec234609B](https://etherscan.io/address/0x97cEbbf8959e2A5476fbe9B98A21806Ec234609B#code) ([diff](https://disco.l2beat.com/diff/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8/eth:0x97cEbbf8959e2A5476fbe9B98A21806Ec234609B)) - 2026-09-17 09:31 UTC, upgrade of [OptimismPortal2](https://etherscan.io/address/0x17bfAfA932d2e23Bd9B909Fd5B4D2e2a27043fb1#code): transaction [0x4f58067dd453c8a1bcf79ecca906ec4148586a00bab8b68621c88ad97fea3dbc](https://etherscan.io/tx/0x4f58067dd453c8a1bcf79ecca906ec4148586a00bab8b68621c88ad97fea3dbc), implementations: [0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8](https://etherscan.io/address/0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8#code) ([diff](https://disco.l2beat.com/diff/eth:0xe89F13c5ee4033B2D3cD76C9d6958eFBfe26D3C2/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8)) - 2026-09-17 09:31 UTC, upgrade of [OptimismPortal2](https://etherscan.io/address/0x17bfAfA932d2e23Bd9B909Fd5B4D2e2a27043fb1#code): transaction [0x4f58067dd453c8a1bcf79ecca906ec4148586a00bab8b68621c88ad97fea3dbc](https://etherscan.io/tx/0x4f58067dd453c8a1bcf79ecca906ec4148586a00bab8b68621c88ad97fea3dbc), implementations: [0xe89F13c5ee4033B2D3cD76C9d6958eFBfe26D3C2](https://etherscan.io/address/0xe89F13c5ee4033B2D3cD76C9d6958eFBfe26D3C2#code) ([diff](https://disco.l2beat.com/diff/eth:0x7Cf803296662e8C72A6C1d6450572209aCF7f202/eth:0xe89F13c5ee4033B2D3cD76C9d6958eFBfe26D3C2)) - 2026-08-04 14:16 UTC, upgrade of [OptimismPortal2](https://etherscan.io/address/0x17bfAfA932d2e23Bd9B909Fd5B4D2e2a27043fb1#code): transaction [0xeb6b35d861c5b232c47bc0e604f0834975876f80181776e46cb486f7a398cf03](https://etherscan.io/tx/0xeb6b35d861c5b232c47bc0e604f0834975876f80181776e46cb486f7a398cf03), implementations: [0x7Cf803296662e8C72A6C1d6450572209aCF7f202](https://etherscan.io/address/0x7Cf803296662e8C72A6C1d6450572209aCF7f202#code) ([diff](https://disco.l2beat.com/diff/eth:0x381E729FF983FA4BCEd820e7b922d79bF653B999/eth:0x7Cf803296662e8C72A6C1d6450572209aCF7f202)) - 2026-08-04 14:11 UTC, upgrade of [OptimismPortal2](https://etherscan.io/address/0x17bfAfA932d2e23Bd9B909Fd5B4D2e2a27043fb1#code): transaction [0xf7dd2207111f0f269b7cdfa8a7fa703b664585513bc113e0d2c8bc7ce9eb355f](https://etherscan.io/tx/0xf7dd2207111f0f269b7cdfa8a7fa703b664585513bc113e0d2c8bc7ce9eb355f), implementations: [0x381E729FF983FA4BCEd820e7b922d79bF653B999](https://etherscan.io/address/0x381E729FF983FA4BCEd820e7b922d79bF653B999#code) ([diff](https://disco.l2beat.com/diff/eth:0xB443Da3e07052204A02d630a8933dAc05a0d6fB4/eth:0x381E729FF983FA4BCEd820e7b922d79bF653B999)) - 2026-08-04 14:04 UTC, upgrade of [OptimismPortal2](https://etherscan.io/address/0x17bfAfA932d2e23Bd9B909Fd5B4D2e2a27043fb1#code): transaction [0xf7628d3121b7e3f4dcd11e06791a07e8ffa71753962baadc04c62944d412a006](https://etherscan.io/tx/0xf7628d3121b7e3f4dcd11e06791a07e8ffa71753962baadc04c62944d412a006), implementations: [0xB443Da3e07052204A02d630a8933dAc05a0d6fB4](https://etherscan.io/address/0xB443Da3e07052204A02d630a8933dAc05a0d6fB4#code) ([diff](https://disco.l2beat.com/diff/eth:0x2D7e764a0D9919e16983a46595CfA81fc34fa7Cd/eth:0xB443Da3e07052204A02d630a8933dAc05a0d6fB4)) - 2026-08-04 13:59 UTC, upgrade of [OptimismPortal2](https://etherscan.io/address/0x17bfAfA932d2e23Bd9B909Fd5B4D2e2a27043fb1#code): transaction [0xfb6124f237aaaccedd1f8d1298ae5f3b19871f7af18bd4c791a818487cc199de](https://etherscan.io/tx/0xfb6124f237aaaccedd1f8d1298ae5f3b19871f7af18bd4c791a818487cc199de), implementations: [0x2D7e764a0D9919e16983a46595CfA81fc34fa7Cd](https://etherscan.io/address/0x2D7e764a0D9919e16983a46595CfA81fc34fa7Cd#code) ([diff](https://disco.l2beat.com/diff/eth:0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC/eth:0x2D7e764a0D9919e16983a46595CfA81fc34fa7Cd)) - 2026-08-04 13:48 UTC, upgrade of [OptimismPortal2](https://etherscan.io/address/0x17bfAfA932d2e23Bd9B909Fd5B4D2e2a27043fb1#code): transaction [0x3fb4739c3ce4edcab46b84c2438e7d1f86b85e7e57970a7eaf6b6de11dda6080](https://etherscan.io/tx/0x3fb4739c3ce4edcab46b84c2438e7d1f86b85e7e57970a7eaf6b6de11dda6080), implementations: [0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC](https://etherscan.io/address/0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC#code) ([diff](https://disco.l2beat.com/diff/eth:0xe2F826324b2faf99E513D16D266c3F80aE87832B/eth:0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC)) - 2026-08-04 13:48 UTC, upgrade of [OptimismPortal2](https://etherscan.io/address/0x17bfAfA932d2e23Bd9B909Fd5B4D2e2a27043fb1#code): transaction [0x3fb4739c3ce4edcab46b84c2438e7d1f86b85e7e57970a7eaf6b6de11dda6080](https://etherscan.io/tx/0x3fb4739c3ce4edcab46b84c2438e7d1f86b85e7e57970a7eaf6b6de11dda6080), implementations: [0xe2F826324b2faf99E513D16D266c3F80aE87832B](https://etherscan.io/address/0xe2F826324b2faf99E513D16D266c3F80aE87832B#code) ([diff](https://disco.l2beat.com/diff/eth:0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC/eth:0xe2F826324b2faf99E513D16D266c3F80aE87832B)) - 2026-08-04 13:31 UTC, upgrade of [OptimismPortal2](https://etherscan.io/address/0x17bfAfA932d2e23Bd9B909Fd5B4D2e2a27043fb1#code): transaction [0xe697fe2a042f60a3fb3f835e122e209bab529a36fe66bfc77af79dbb1bebdfa4](https://etherscan.io/tx/0xe697fe2a042f60a3fb3f835e122e209bab529a36fe66bfc77af79dbb1bebdfa4), implementations: [0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC](https://etherscan.io/address/0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC#code) ([diff](https://disco.l2beat.com/diff/eth:0x2D778797049FE9259d947D1ED8e5442226dFB589/eth:0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC)) - 2026-08-04 13:31 UTC, upgrade of [OptimismPortal2](https://etherscan.io/address/0x17bfAfA932d2e23Bd9B909Fd5B4D2e2a27043fb1#code): transaction [0xe697fe2a042f60a3fb3f835e122e209bab529a36fe66bfc77af79dbb1bebdfa4](https://etherscan.io/tx/0xe697fe2a042f60a3fb3f835e122e209bab529a36fe66bfc77af79dbb1bebdfa4), implementations: [0x2D778797049FE9259d947D1ED8e5442226dFB589](https://etherscan.io/address/0x2D778797049FE9259d947D1ED8e5442226dFB589#code) ([diff](https://disco.l2beat.com/diff/eth:0xF7209f5471628aC5f68FE4ae98Feb7f02E0f40Be/eth:0x2D778797049FE9259d947D1ED8e5442226dFB589)) - 2025-08-22 22:25 UTC, upgrade of [OptimismPortal2](https://etherscan.io/address/0x17bfAfA932d2e23Bd9B909Fd5B4D2e2a27043fb1#code): transaction [0x1d729201879e9035259d12fc58020a8f4dd1cb7c6972f915a6fcef15f89756d6](https://etherscan.io/tx/0x1d729201879e9035259d12fc58020a8f4dd1cb7c6972f915a6fcef15f89756d6), implementations: [0xF7209f5471628aC5f68FE4ae98Feb7f02E0f40Be](https://etherscan.io/address/0xF7209f5471628aC5f68FE4ae98Feb7f02E0f40Be#code) ([diff](https://disco.l2beat.com/diff/eth:0xE14b12F4843447114A093D99Dc9322b93a967DE6/eth:0xF7209f5471628aC5f68FE4ae98Feb7f02E0f40Be)) - 2025-08-05 13:35 UTC, upgrade of [OptimismPortal2](https://etherscan.io/address/0x17bfAfA932d2e23Bd9B909Fd5B4D2e2a27043fb1#code): transaction [0x12d1d0dde1bafad169722a0d6a42fafad00cacc19282bc0f7de4ad39b70afed1](https://etherscan.io/tx/0x12d1d0dde1bafad169722a0d6a42fafad00cacc19282bc0f7de4ad39b70afed1), implementations: [0xE14b12F4843447114A093D99Dc9322b93a967DE6](https://etherscan.io/address/0xE14b12F4843447114A093D99Dc9322b93a967DE6#code) ([diff](https://disco.l2beat.com/diff/eth:0xA0A36095A2258568759fb41CAE4934BBd2d04E26/eth:0xE14b12F4843447114A093D99Dc9322b93a967DE6)) - 2025-08-05 13:35 UTC, upgrade of [OptimismPortal2](https://etherscan.io/address/0x17bfAfA932d2e23Bd9B909Fd5B4D2e2a27043fb1#code): transaction [0x12d1d0dde1bafad169722a0d6a42fafad00cacc19282bc0f7de4ad39b70afed1](https://etherscan.io/tx/0x12d1d0dde1bafad169722a0d6a42fafad00cacc19282bc0f7de4ad39b70afed1), implementations: [0xA0A36095A2258568759fb41CAE4934BBd2d04E26](https://etherscan.io/address/0xA0A36095A2258568759fb41CAE4934BBd2d04E26#code) ([diff](https://disco.l2beat.com/diff/eth:0x6335a030fdCBa6c5704a74EF3BeDdd6550c0375a/eth:0xA0A36095A2258568759fb41CAE4934BBd2d04E26)) - 2025-04-23 14:46 UTC, upgrade of [OptimismPortal2](https://etherscan.io/address/0x17bfAfA932d2e23Bd9B909Fd5B4D2e2a27043fb1#code): transaction [0xe9ed64d1dc4bf02f583f912b831f46ae873996b36901c3b1180ac56c710e1d6f](https://etherscan.io/tx/0xe9ed64d1dc4bf02f583f912b831f46ae873996b36901c3b1180ac56c710e1d6f), implementations: [0x6335a030fdCBa6c5704a74EF3BeDdd6550c0375a](https://etherscan.io/address/0x6335a030fdCBa6c5704a74EF3BeDdd6550c0375a#code) ([diff](https://disco.l2beat.com/diff/eth:0xb6714d9808909b9383B09aD7Ea4Bc7E59b3B0E20/eth:0x6335a030fdCBa6c5704a74EF3BeDdd6550c0375a)) - 2025-02-12 09:23 UTC, upgrade of [OptimismPortal2](https://etherscan.io/address/0x17bfAfA932d2e23Bd9B909Fd5B4D2e2a27043fb1#code): transaction [0x19e7944c32b28126488482597f707797b60c4c3201abacdba5b9ea00b31cfbb4](https://etherscan.io/tx/0x19e7944c32b28126488482597f707797b60c4c3201abacdba5b9ea00b31cfbb4), implementations: [0xb6714d9808909b9383B09aD7Ea4Bc7E59b3B0E20](https://etherscan.io/address/0xb6714d9808909b9383B09aD7Ea4Bc7E59b3B0E20#code) ([diff](https://disco.l2beat.com/diff/eth:0xde8B916B972cE3c27C21157Fc2b107c413062b9d/eth:0xb6714d9808909b9383B09aD7Ea4Bc7E59b3B0E20)) - 2024-07-17 12:11 UTC, upgrade of [OptimismPortal2](https://etherscan.io/address/0x17bfAfA932d2e23Bd9B909Fd5B4D2e2a27043fb1#code): transaction [0x472c4b57b3828c3f8a846702da5707eccb216d672b4ede4eb4186ffe606b14b3](https://etherscan.io/tx/0x472c4b57b3828c3f8a846702da5707eccb216d672b4ede4eb4186ffe606b14b3), implementations: [0xde8B916B972cE3c27C21157Fc2b107c413062b9d](https://etherscan.io/address/0xde8B916B972cE3c27C21157Fc2b107c413062b9d#code) ([diff](https://disco.l2beat.com/diff/eth:0x304a52C8354f323672191Ebf1347Cd3d494Ea830/eth:0xde8B916B972cE3c27C21157Fc2b107c413062b9d)) - 2024-07-16 08:48 UTC, upgrade of [OptimismPortal2](https://etherscan.io/address/0x17bfAfA932d2e23Bd9B909Fd5B4D2e2a27043fb1#code): transaction [0xf3c21a1c1d5df7cd11018e70254ed8b78bba36107c8231dfee6ff1b1c5702196](https://etherscan.io/tx/0xf3c21a1c1d5df7cd11018e70254ed8b78bba36107c8231dfee6ff1b1c5702196), implementations: [0x304a52C8354f323672191Ebf1347Cd3d494Ea830](https://etherscan.io/address/0x304a52C8354f323672191Ebf1347Cd3d494Ea830#code) ([diff](https://disco.l2beat.com/diff/eth:0x8Ab1b1E21c2f229a7bB1430CF3ADfb0644a69ab7/eth:0x304a52C8354f323672191Ebf1347Cd3d494Ea830)) - 2024-07-02 16:13 UTC, deployment of [OptimismPortal2](https://etherscan.io/address/0x17bfAfA932d2e23Bd9B909Fd5B4D2e2a27043fb1#code): transaction [0x67e7390665dd0d4d9d7ad86cf3ae11c0dce8d7538b69d5fc15d176b36474e08f](https://etherscan.io/tx/0x67e7390665dd0d4d9d7ad86cf3ae11c0dce8d7538b69d5fc15d176b36474e08f), implementations: [0x8Ab1b1E21c2f229a7bB1430CF3ADfb0644a69ab7](https://etherscan.io/address/0x8Ab1b1E21c2f229a7bB1430CF3ADfb0644a69ab7#code) The OptimismPortal contract is the main entry point to deposit funds from L1 to L2. It also allows to prove and finalize withdrawals. It specifies which game type can be used for withdrawals, which currently is the PermissionedDisputeGame. - Roles: - **admin**: ProxyAdmin; ultimately Conduit Multisig 1 The following tokens are included in the value secured calculation: ETH Can be upgraded by: Conduit Multisig 1 with no delay Implementation used in: [Metal](https://l2beat.com/layer2s/projects/metal#OptimismPortal2), [Mode Network](https://l2beat.com/layer2s/projects/mode#OptimismPortal2), [Nillion](https://l2beat.com/layer2s/projects/nillion#OptimismPortal2), [Orderly Network](https://l2beat.com/layer2s/projects/orderly#OptimismPortal2), [Phala](https://l2beat.com/layer2s/projects/phala#OptimismPortal2), [Ronin](https://l2beat.com/layer2s/projects/ronin-network#OptimismPortal2), [Settlus](https://l2beat.com/layer2s/projects/settlus#OptimismPortal2), [Shape](https://l2beat.com/layer2s/projects/shape#OptimismPortal2), [Superseed](https://l2beat.com/layer2s/projects/superseed#OptimismPortal2), [World Chain](https://l2beat.com/layer2s/projects/world#OptimismPortal2), [Zora](https://l2beat.com/layer2s/projects/zora#OptimismPortal2) #### SystemConfig Addresses: [0x30F82a1Ca89226E8b8815d6EbB728e3b18a428ff](https://etherscan.io/address/0x30F82a1Ca89226E8b8815d6EbB728e3b18a428ff#code), [0x42Ad0173051225Ac784100e9acD43349707F4db9](https://etherscan.io/address/0x42Ad0173051225Ac784100e9acD43349707F4db9#code) (Implementation (Upgradable)), [0x3A317fCEE068868BE7628eFb233170df2DD5B71d](https://etherscan.io/address/0x3A317fCEE068868BE7628eFb233170df2DD5B71d#code) (Admin) **Past upgrades** (Count of upgrades: 15, Last upgrade: 29d 14h ago, Avg upgrade interval: 1mo 22d) - 2026-09-17 09:31 UTC, upgrade of [SystemConfig](https://etherscan.io/address/0x30F82a1Ca89226E8b8815d6EbB728e3b18a428ff#code): transaction [0x4f58067dd453c8a1bcf79ecca906ec4148586a00bab8b68621c88ad97fea3dbc](https://etherscan.io/tx/0x4f58067dd453c8a1bcf79ecca906ec4148586a00bab8b68621c88ad97fea3dbc), implementations: [0xd392c27B84b1cA776528F2704BC67B82a62132d2](https://etherscan.io/address/0xd392c27B84b1cA776528F2704BC67B82a62132d2#code) ([diff](https://disco.l2beat.com/diff/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8/eth:0xd392c27B84b1cA776528F2704BC67B82a62132d2)) - 2026-09-17 09:31 UTC, upgrade of [SystemConfig](https://etherscan.io/address/0x30F82a1Ca89226E8b8815d6EbB728e3b18a428ff#code): transaction [0x4f58067dd453c8a1bcf79ecca906ec4148586a00bab8b68621c88ad97fea3dbc](https://etherscan.io/tx/0x4f58067dd453c8a1bcf79ecca906ec4148586a00bab8b68621c88ad97fea3dbc), implementations: [0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8](https://etherscan.io/address/0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8#code) ([diff](https://disco.l2beat.com/diff/eth:0x42Ad0173051225Ac784100e9acD43349707F4db9/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8)) - 2026-09-17 09:31 UTC, upgrade of [SystemConfig](https://etherscan.io/address/0x30F82a1Ca89226E8b8815d6EbB728e3b18a428ff#code): transaction [0x4f58067dd453c8a1bcf79ecca906ec4148586a00bab8b68621c88ad97fea3dbc](https://etherscan.io/tx/0x4f58067dd453c8a1bcf79ecca906ec4148586a00bab8b68621c88ad97fea3dbc), implementations: [0x42Ad0173051225Ac784100e9acD43349707F4db9](https://etherscan.io/address/0x42Ad0173051225Ac784100e9acD43349707F4db9#code) ([diff](https://disco.l2beat.com/diff/eth:0x2fA28989fc559836E9d66dFf3010C7F7f41c65ED/eth:0x42Ad0173051225Ac784100e9acD43349707F4db9)) - 2026-08-04 14:16 UTC, upgrade of [SystemConfig](https://etherscan.io/address/0x30F82a1Ca89226E8b8815d6EbB728e3b18a428ff#code): transaction [0xeb6b35d861c5b232c47bc0e604f0834975876f80181776e46cb486f7a398cf03](https://etherscan.io/tx/0xeb6b35d861c5b232c47bc0e604f0834975876f80181776e46cb486f7a398cf03), implementations: [0x2fA28989fc559836E9d66dFf3010C7F7f41c65ED](https://etherscan.io/address/0x2fA28989fc559836E9d66dFf3010C7F7f41c65ED#code) ([diff](https://disco.l2beat.com/diff/eth:0x2bFE4A5Bd5A41e9d848d843ebCDFa15954e9A557/eth:0x2fA28989fc559836E9d66dFf3010C7F7f41c65ED)) - 2026-08-04 14:11 UTC, upgrade of [SystemConfig](https://etherscan.io/address/0x30F82a1Ca89226E8b8815d6EbB728e3b18a428ff#code): transaction [0xf7dd2207111f0f269b7cdfa8a7fa703b664585513bc113e0d2c8bc7ce9eb355f](https://etherscan.io/tx/0xf7dd2207111f0f269b7cdfa8a7fa703b664585513bc113e0d2c8bc7ce9eb355f), implementations: [0x2bFE4A5Bd5A41e9d848d843ebCDFa15954e9A557](https://etherscan.io/address/0x2bFE4A5Bd5A41e9d848d843ebCDFa15954e9A557#code) ([diff](https://disco.l2beat.com/diff/eth:0x340f923E5c7cbB2171146f64169EC9d5a9FfE647/eth:0x2bFE4A5Bd5A41e9d848d843ebCDFa15954e9A557)) - 2026-08-04 14:04 UTC, upgrade of [SystemConfig](https://etherscan.io/address/0x30F82a1Ca89226E8b8815d6EbB728e3b18a428ff#code): transaction [0xf7628d3121b7e3f4dcd11e06791a07e8ffa71753962baadc04c62944d412a006](https://etherscan.io/tx/0xf7628d3121b7e3f4dcd11e06791a07e8ffa71753962baadc04c62944d412a006), implementations: [0x340f923E5c7cbB2171146f64169EC9d5a9FfE647](https://etherscan.io/address/0x340f923E5c7cbB2171146f64169EC9d5a9FfE647#code) ([diff](https://disco.l2beat.com/diff/eth:0x760C48C62A85045A6B69f07F4a9f22868659CbCc/eth:0x340f923E5c7cbB2171146f64169EC9d5a9FfE647)) - 2026-08-04 13:59 UTC, upgrade of [SystemConfig](https://etherscan.io/address/0x30F82a1Ca89226E8b8815d6EbB728e3b18a428ff#code): transaction [0xfb6124f237aaaccedd1f8d1298ae5f3b19871f7af18bd4c791a818487cc199de](https://etherscan.io/tx/0xfb6124f237aaaccedd1f8d1298ae5f3b19871f7af18bd4c791a818487cc199de), implementations: [0x760C48C62A85045A6B69f07F4a9f22868659CbCc](https://etherscan.io/address/0x760C48C62A85045A6B69f07F4a9f22868659CbCc#code) ([diff](https://disco.l2beat.com/diff/eth:0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC/eth:0x760C48C62A85045A6B69f07F4a9f22868659CbCc)) - 2026-08-04 13:48 UTC, upgrade of [SystemConfig](https://etherscan.io/address/0x30F82a1Ca89226E8b8815d6EbB728e3b18a428ff#code): transaction [0x3fb4739c3ce4edcab46b84c2438e7d1f86b85e7e57970a7eaf6b6de11dda6080](https://etherscan.io/tx/0x3fb4739c3ce4edcab46b84c2438e7d1f86b85e7e57970a7eaf6b6de11dda6080), implementations: [0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC](https://etherscan.io/address/0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC#code) ([diff](https://disco.l2beat.com/diff/eth:0xAB9d6cB7A427c0765163A7f45BB91cAfe5f2D375/eth:0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC)) - 2026-08-04 13:48 UTC, upgrade of [SystemConfig](https://etherscan.io/address/0x30F82a1Ca89226E8b8815d6EbB728e3b18a428ff#code): transaction [0x3fb4739c3ce4edcab46b84c2438e7d1f86b85e7e57970a7eaf6b6de11dda6080](https://etherscan.io/tx/0x3fb4739c3ce4edcab46b84c2438e7d1f86b85e7e57970a7eaf6b6de11dda6080), implementations: [0xAB9d6cB7A427c0765163A7f45BB91cAfe5f2D375](https://etherscan.io/address/0xAB9d6cB7A427c0765163A7f45BB91cAfe5f2D375#code) ([diff](https://disco.l2beat.com/diff/eth:0xAB9d6cB7A427c0765163A7f45BB91cAfe5f2D375/eth:0xAB9d6cB7A427c0765163A7f45BB91cAfe5f2D375)) - 2026-08-04 13:40 UTC, upgrade of [SystemConfig](https://etherscan.io/address/0x30F82a1Ca89226E8b8815d6EbB728e3b18a428ff#code): transaction [0x2b72943b3cf73e5f4dade0cc6edd2f78bc2cb3f518df2872cf6fd69aea924cc0](https://etherscan.io/tx/0x2b72943b3cf73e5f4dade0cc6edd2f78bc2cb3f518df2872cf6fd69aea924cc0), implementations: [0xAB9d6cB7A427c0765163A7f45BB91cAfe5f2D375](https://etherscan.io/address/0xAB9d6cB7A427c0765163A7f45BB91cAfe5f2D375#code) ([diff](https://disco.l2beat.com/diff/eth:0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC/eth:0xAB9d6cB7A427c0765163A7f45BB91cAfe5f2D375)) - 2026-08-04 13:31 UTC, upgrade of [SystemConfig](https://etherscan.io/address/0x30F82a1Ca89226E8b8815d6EbB728e3b18a428ff#code): transaction [0xe697fe2a042f60a3fb3f835e122e209bab529a36fe66bfc77af79dbb1bebdfa4](https://etherscan.io/tx/0xe697fe2a042f60a3fb3f835e122e209bab529a36fe66bfc77af79dbb1bebdfa4), implementations: [0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC](https://etherscan.io/address/0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC#code) ([diff](https://disco.l2beat.com/diff/eth:0xba2492e52F45651B60B8B38d4Ea5E2390C64Ffb1/eth:0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC)) - 2026-08-04 13:31 UTC, upgrade of [SystemConfig](https://etherscan.io/address/0x30F82a1Ca89226E8b8815d6EbB728e3b18a428ff#code): transaction [0xe697fe2a042f60a3fb3f835e122e209bab529a36fe66bfc77af79dbb1bebdfa4](https://etherscan.io/tx/0xe697fe2a042f60a3fb3f835e122e209bab529a36fe66bfc77af79dbb1bebdfa4), implementations: [0xba2492e52F45651B60B8B38d4Ea5E2390C64Ffb1](https://etherscan.io/address/0xba2492e52F45651B60B8B38d4Ea5E2390C64Ffb1#code) ([diff](https://disco.l2beat.com/diff/eth:0xaFD10586f3F2cB2aD34E8196563424a3a93EbE9F/eth:0xba2492e52F45651B60B8B38d4Ea5E2390C64Ffb1)) - 2025-11-24 20:55 UTC, upgrade of [SystemConfig](https://etherscan.io/address/0x30F82a1Ca89226E8b8815d6EbB728e3b18a428ff#code): transaction [0x7e05b5e49355a8b5e46139a79cae4374dc441b3f53adabd248a2851997e45323](https://etherscan.io/tx/0x7e05b5e49355a8b5e46139a79cae4374dc441b3f53adabd248a2851997e45323), implementations: [0xaFD10586f3F2cB2aD34E8196563424a3a93EbE9F](https://etherscan.io/address/0xaFD10586f3F2cB2aD34E8196563424a3a93EbE9F#code) ([diff](https://disco.l2beat.com/diff/eth:0x83085450544c3F360a40720859EbB1bfd311584D/eth:0xaFD10586f3F2cB2aD34E8196563424a3a93EbE9F)) - 2025-08-22 22:25 UTC, upgrade of [SystemConfig](https://etherscan.io/address/0x30F82a1Ca89226E8b8815d6EbB728e3b18a428ff#code): transaction [0x1d729201879e9035259d12fc58020a8f4dd1cb7c6972f915a6fcef15f89756d6](https://etherscan.io/tx/0x1d729201879e9035259d12fc58020a8f4dd1cb7c6972f915a6fcef15f89756d6), implementations: [0x83085450544c3F360a40720859EbB1bfd311584D](https://etherscan.io/address/0x83085450544c3F360a40720859EbB1bfd311584D#code) ([diff](https://disco.l2beat.com/diff/eth:0x795277B6aD8778E27aa70813157134cfC4a4D446/eth:0x83085450544c3F360a40720859EbB1bfd311584D)) - 2025-05-07 18:25 UTC, upgrade of [SystemConfig](https://etherscan.io/address/0x30F82a1Ca89226E8b8815d6EbB728e3b18a428ff#code): transaction [0x19f086f222696bf287600d456e602d10dd4a1db43027e97262e1abb52f347570](https://etherscan.io/tx/0x19f086f222696bf287600d456e602d10dd4a1db43027e97262e1abb52f347570), implementations: [0x795277B6aD8778E27aa70813157134cfC4a4D446](https://etherscan.io/address/0x795277B6aD8778E27aa70813157134cfC4a4D446#code) ([diff](https://disco.l2beat.com/diff/eth:0xA03E2f3Ee6dBa20411A2326D7FA9CCCc6a9A53de/eth:0x795277B6aD8778E27aa70813157134cfC4a4D446)) - 2024-07-02 16:11 UTC, deployment of [SystemConfig](https://etherscan.io/address/0x30F82a1Ca89226E8b8815d6EbB728e3b18a428ff#code): transaction [0x9cebd2cdbd71bf96668e003794de90cf09858ccebb8f93c41e3d7822df207505](https://etherscan.io/tx/0x9cebd2cdbd71bf96668e003794de90cf09858ccebb8f93c41e3d7822df207505), implementations: [0xA03E2f3Ee6dBa20411A2326D7FA9CCCc6a9A53de](https://etherscan.io/address/0xA03E2f3Ee6dBa20411A2326D7FA9CCCc6a9A53de#code) Contains configuration parameters such as the Sequencer address, gas limit on this chain and the unsafe block signer address. - Roles: - **admin**: ProxyAdmin; ultimately Conduit Multisig 1 - **batcherHash**: EOA 2 - **owner**: Conduit Multisig 1 Can be upgraded by: Conduit Multisig 1 with no delay Implementation used in: [Aevo](https://l2beat.com/layer2s/projects/aevo#SystemConfig), [BOB](https://l2beat.com/layer2s/projects/bob#SystemConfig), [Katana](https://l2beat.com/layer2s/projects/katana#SystemConfig), [Metal](https://l2beat.com/layer2s/projects/metal#SystemConfig), [Mode Network](https://l2beat.com/layer2s/projects/mode#SystemConfig), [Nillion](https://l2beat.com/layer2s/projects/nillion#SystemConfig), [Orderly Network](https://l2beat.com/layer2s/projects/orderly#SystemConfig), [Phala](https://l2beat.com/layer2s/projects/phala#SystemConfig), [Ronin](https://l2beat.com/layer2s/projects/ronin-network#SystemConfig), [Settlus](https://l2beat.com/layer2s/projects/settlus#SystemConfig), [Shape](https://l2beat.com/layer2s/projects/shape#SystemConfig), [Superseed](https://l2beat.com/layer2s/projects/superseed#SystemConfig), [World Chain](https://l2beat.com/layer2s/projects/world#SystemConfig), [Zora](https://l2beat.com/layer2s/projects/zora#SystemConfig) #### DisputeGameFactory Addresses: [0x6b9e81504e961a9CDf81A06e916720fb4c273e90](https://etherscan.io/address/0x6b9e81504e961a9CDf81A06e916720fb4c273e90#code), [0x72B971717E088B59F26d4236BE222ADB6ACD393b](https://etherscan.io/address/0x72B971717E088B59F26d4236BE222ADB6ACD393b#code) (Implementation (Upgradable)), [0x3A317fCEE068868BE7628eFb233170df2DD5B71d](https://etherscan.io/address/0x3A317fCEE068868BE7628eFb233170df2DD5B71d#code) (Admin) **Past upgrades** (Count of upgrades: 6, Last upgrade: 29d 14h ago, Avg upgrade interval: 10d 11h) - 2026-09-17 09:31 UTC, upgrade of [DisputeGameFactory](https://etherscan.io/address/0x6b9e81504e961a9CDf81A06e916720fb4c273e90#code): transaction [0x4f58067dd453c8a1bcf79ecca906ec4148586a00bab8b68621c88ad97fea3dbc](https://etherscan.io/tx/0x4f58067dd453c8a1bcf79ecca906ec4148586a00bab8b68621c88ad97fea3dbc), implementations: [0xc040F392E52Cb6970CA8E110c280fE24E07C5e2c](https://etherscan.io/address/0xc040F392E52Cb6970CA8E110c280fE24E07C5e2c#code) ([diff](https://disco.l2beat.com/diff/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8/eth:0xc040F392E52Cb6970CA8E110c280fE24E07C5e2c)) - 2026-09-17 09:31 UTC, upgrade of [DisputeGameFactory](https://etherscan.io/address/0x6b9e81504e961a9CDf81A06e916720fb4c273e90#code): transaction [0x4f58067dd453c8a1bcf79ecca906ec4148586a00bab8b68621c88ad97fea3dbc](https://etherscan.io/tx/0x4f58067dd453c8a1bcf79ecca906ec4148586a00bab8b68621c88ad97fea3dbc), implementations: [0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8](https://etherscan.io/address/0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8#code) ([diff](https://disco.l2beat.com/diff/eth:0x72B971717E088B59F26d4236BE222ADB6ACD393b/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8)) - 2026-09-17 09:31 UTC, upgrade of [DisputeGameFactory](https://etherscan.io/address/0x6b9e81504e961a9CDf81A06e916720fb4c273e90#code): transaction [0x4f58067dd453c8a1bcf79ecca906ec4148586a00bab8b68621c88ad97fea3dbc](https://etherscan.io/tx/0x4f58067dd453c8a1bcf79ecca906ec4148586a00bab8b68621c88ad97fea3dbc), implementations: [0x72B971717E088B59F26d4236BE222ADB6ACD393b](https://etherscan.io/address/0x72B971717E088B59F26d4236BE222ADB6ACD393b#code) ([diff](https://disco.l2beat.com/diff/eth:0x74Fac1D45B98bae058F8F566201c9A81B85C7D50/eth:0x72B971717E088B59F26d4236BE222ADB6ACD393b)) - 2026-08-04 14:16 UTC, upgrade of [DisputeGameFactory](https://etherscan.io/address/0x6b9e81504e961a9CDf81A06e916720fb4c273e90#code): transaction [0xeb6b35d861c5b232c47bc0e604f0834975876f80181776e46cb486f7a398cf03](https://etherscan.io/tx/0xeb6b35d861c5b232c47bc0e604f0834975876f80181776e46cb486f7a398cf03), implementations: [0x74Fac1D45B98bae058F8F566201c9A81B85C7D50](https://etherscan.io/address/0x74Fac1D45B98bae058F8F566201c9A81B85C7D50#code) ([diff](https://disco.l2beat.com/diff/eth:0x33D1e8571a85a538ed3D5A4d88f46C112383439D/eth:0x74Fac1D45B98bae058F8F566201c9A81B85C7D50)) - 2026-08-04 14:11 UTC, upgrade of [DisputeGameFactory](https://etherscan.io/address/0x6b9e81504e961a9CDf81A06e916720fb4c273e90#code): transaction [0xf7dd2207111f0f269b7cdfa8a7fa703b664585513bc113e0d2c8bc7ce9eb355f](https://etherscan.io/tx/0xf7dd2207111f0f269b7cdfa8a7fa703b664585513bc113e0d2c8bc7ce9eb355f), implementations: [0x33D1e8571a85a538ed3D5A4d88f46C112383439D](https://etherscan.io/address/0x33D1e8571a85a538ed3D5A4d88f46C112383439D#code) ([diff](https://disco.l2beat.com/diff/eth:0x4bbA758F006Ef09402eF31724203F316ab74e4a0/eth:0x33D1e8571a85a538ed3D5A4d88f46C112383439D)) - 2026-08-04 13:59 UTC, upgrade of [DisputeGameFactory](https://etherscan.io/address/0x6b9e81504e961a9CDf81A06e916720fb4c273e90#code): transaction [0xfb6124f237aaaccedd1f8d1298ae5f3b19871f7af18bd4c791a818487cc199de](https://etherscan.io/tx/0xfb6124f237aaaccedd1f8d1298ae5f3b19871f7af18bd4c791a818487cc199de), implementations: [0x4bbA758F006Ef09402eF31724203F316ab74e4a0](https://etherscan.io/address/0x4bbA758F006Ef09402eF31724203F316ab74e4a0#code) ([diff](https://disco.l2beat.com/diff/eth:0xc641A33cab81C559F2bd4b21EA34C290E2440C2B/eth:0x4bbA758F006Ef09402eF31724203F316ab74e4a0)) - 2026-08-04 13:37 UTC, deployment of [DisputeGameFactory](https://etherscan.io/address/0x6b9e81504e961a9CDf81A06e916720fb4c273e90#code): transaction [0x06c740b37bed26864623381918adb2ecf4f469661d067f648ad62e50a989bba9](https://etherscan.io/tx/0x06c740b37bed26864623381918adb2ecf4f469661d067f648ad62e50a989bba9), implementations: [0xc641A33cab81C559F2bd4b21EA34C290E2440C2B](https://etherscan.io/address/0xc641A33cab81C559F2bd4b21EA34C290E2440C2B#code) The dispute game factory allows the creation of dispute games, used to propose state roots and eventually challenge them. This variant exposes per-type reads only; the legacy array views (gameImpls[], initBonds[]) were removed in the new implementation. - Roles: - **admin**: ProxyAdmin; ultimately Conduit Multisig 1 - **challengerFromDGF**: Conduit Multisig 1 - **owner**: Conduit Multisig 1 - **proposerFromDGF**: EOA 1 Can be upgraded by: Conduit Multisig 1 with no delay Implementation used in: [Aevo](https://l2beat.com/layer2s/projects/aevo#DisputeGameFactory), [BOB](https://l2beat.com/layer2s/projects/bob#DisputeGameFactory), [Ink](https://l2beat.com/layer2s/projects/ink#DisputeGameFactory), [Metal](https://l2beat.com/layer2s/projects/metal#DisputeGameFactory), [Mode Network](https://l2beat.com/layer2s/projects/mode#DisputeGameFactory), [Nillion](https://l2beat.com/layer2s/projects/nillion#DisputeGameFactory), [OP Mainnet](https://l2beat.com/layer2s/projects/op-mainnet#DisputeGameFactory), [Orderly Network](https://l2beat.com/layer2s/projects/orderly#DisputeGameFactory), [Phala](https://l2beat.com/layer2s/projects/phala#DisputeGameFactory), [Ronin](https://l2beat.com/layer2s/projects/ronin-network#DisputeGameFactory), [Settlus](https://l2beat.com/layer2s/projects/settlus#DisputeGameFactory), [Shape](https://l2beat.com/layer2s/projects/shape#DisputeGameFactory), [Soneium](https://l2beat.com/layer2s/projects/soneium#DisputeGameFactory), [Superseed](https://l2beat.com/layer2s/projects/superseed#DisputeGameFactory), [Unichain](https://l2beat.com/layer2s/projects/unichain#DisputeGameFactory), [World Chain](https://l2beat.com/layer2s/projects/world#DisputeGameFactory), [Zora](https://l2beat.com/layer2s/projects/zora#DisputeGameFactory) #### SuperchainConfig Addresses: [0x097f99768A0a4a0A81bAbbCB1ea18193bA9D53cC](https://etherscan.io/address/0x097f99768A0a4a0A81bAbbCB1ea18193bA9D53cC#code), [0xE4F9779ab53070a55db24dFAeFf9AF147c6ED550](https://etherscan.io/address/0xE4F9779ab53070a55db24dFAeFf9AF147c6ED550#code) (Implementation (Upgradable)), [0xb4899FF43Ae727B1E9CB19AC44660e4A43Fad0b5](https://etherscan.io/address/0xb4899FF43Ae727B1E9CB19AC44660e4A43Fad0b5#code) (Admin) **Past upgrades** (Count of upgrades: 9, Last upgrade: 2mo 4d ago, Avg upgrade interval: 1mo 17d) - 2026-08-13 13:32 UTC, upgrade of [SuperchainConfig](https://etherscan.io/address/0x097f99768A0a4a0A81bAbbCB1ea18193bA9D53cC#code): transaction [0x2c62c31e4108c24123b9f5b3c26a87e5ec6b4fc3b85163c7257edb523316f9db](https://etherscan.io/tx/0x2c62c31e4108c24123b9f5b3c26a87e5ec6b4fc3b85163c7257edb523316f9db), implementations: [0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8](https://etherscan.io/address/0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8#code) ([diff](https://disco.l2beat.com/diff/eth:0xE4F9779ab53070a55db24dFAeFf9AF147c6ED550/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8)) - 2026-08-13 13:32 UTC, upgrade of [SuperchainConfig](https://etherscan.io/address/0x097f99768A0a4a0A81bAbbCB1ea18193bA9D53cC#code): transaction [0x2c62c31e4108c24123b9f5b3c26a87e5ec6b4fc3b85163c7257edb523316f9db](https://etherscan.io/tx/0x2c62c31e4108c24123b9f5b3c26a87e5ec6b4fc3b85163c7257edb523316f9db), implementations: [0xE4F9779ab53070a55db24dFAeFf9AF147c6ED550](https://etherscan.io/address/0xE4F9779ab53070a55db24dFAeFf9AF147c6ED550#code) ([diff](https://disco.l2beat.com/diff/eth:0xb08Cc720F511062537ca78BdB0AE691F04F5a957/eth:0xE4F9779ab53070a55db24dFAeFf9AF147c6ED550)) - 2026-08-04 14:16 UTC, upgrade of [SuperchainConfig](https://etherscan.io/address/0x097f99768A0a4a0A81bAbbCB1ea18193bA9D53cC#code): transaction [0xeb6b35d861c5b232c47bc0e604f0834975876f80181776e46cb486f7a398cf03](https://etherscan.io/tx/0xeb6b35d861c5b232c47bc0e604f0834975876f80181776e46cb486f7a398cf03), implementations: [0xb08Cc720F511062537ca78BdB0AE691F04F5a957](https://etherscan.io/address/0xb08Cc720F511062537ca78BdB0AE691F04F5a957#code) ([diff](https://disco.l2beat.com/diff/eth:0xCe28685EB204186b557133766eCA00334EB441E4/eth:0xb08Cc720F511062537ca78BdB0AE691F04F5a957)) - 2026-08-04 14:11 UTC, upgrade of [SuperchainConfig](https://etherscan.io/address/0x097f99768A0a4a0A81bAbbCB1ea18193bA9D53cC#code): transaction [0xf7dd2207111f0f269b7cdfa8a7fa703b664585513bc113e0d2c8bc7ce9eb355f](https://etherscan.io/tx/0xf7dd2207111f0f269b7cdfa8a7fa703b664585513bc113e0d2c8bc7ce9eb355f), implementations: [0xCe28685EB204186b557133766eCA00334EB441E4](https://etherscan.io/address/0xCe28685EB204186b557133766eCA00334EB441E4#code) ([diff](https://disco.l2beat.com/diff/eth:0x4da82a327773965b8d4D85Fa3dB8249b387458E7/eth:0xCe28685EB204186b557133766eCA00334EB441E4)) - 2026-08-04 13:59 UTC, upgrade of [SuperchainConfig](https://etherscan.io/address/0x097f99768A0a4a0A81bAbbCB1ea18193bA9D53cC#code): transaction [0xfb6124f237aaaccedd1f8d1298ae5f3b19871f7af18bd4c791a818487cc199de](https://etherscan.io/tx/0xfb6124f237aaaccedd1f8d1298ae5f3b19871f7af18bd4c791a818487cc199de), implementations: [0x4da82a327773965b8d4D85Fa3dB8249b387458E7](https://etherscan.io/address/0x4da82a327773965b8d4D85Fa3dB8249b387458E7#code) ([diff](https://disco.l2beat.com/diff/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8/eth:0x4da82a327773965b8d4D85Fa3dB8249b387458E7)) - 2026-07-17 11:30 UTC, upgrade of [SuperchainConfig](https://etherscan.io/address/0x097f99768A0a4a0A81bAbbCB1ea18193bA9D53cC#code): transaction [0x1f1d4768cc0d3f218a3f5aea7b6ceed0ae663498958e8194f208e88522c6404b](https://etherscan.io/tx/0x1f1d4768cc0d3f218a3f5aea7b6ceed0ae663498958e8194f208e88522c6404b), implementations: [0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8](https://etherscan.io/address/0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8#code) ([diff](https://disco.l2beat.com/diff/eth:0xE4F9779ab53070a55db24dFAeFf9AF147c6ED550/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8)) - 2026-07-17 11:30 UTC, upgrade of [SuperchainConfig](https://etherscan.io/address/0x097f99768A0a4a0A81bAbbCB1ea18193bA9D53cC#code): transaction [0x1f1d4768cc0d3f218a3f5aea7b6ceed0ae663498958e8194f208e88522c6404b](https://etherscan.io/tx/0x1f1d4768cc0d3f218a3f5aea7b6ceed0ae663498958e8194f208e88522c6404b), implementations: [0xE4F9779ab53070a55db24dFAeFf9AF147c6ED550](https://etherscan.io/address/0xE4F9779ab53070a55db24dFAeFf9AF147c6ED550#code) ([diff](https://disco.l2beat.com/diff/eth:0xCe28685EB204186b557133766eCA00334EB441E4/eth:0xE4F9779ab53070a55db24dFAeFf9AF147c6ED550)) - 2026-01-12 08:51 UTC, upgrade of [SuperchainConfig](https://etherscan.io/address/0x097f99768A0a4a0A81bAbbCB1ea18193bA9D53cC#code): transaction [0x00b0d87bdd24f6273dabd8cb118814977b0e80773f88cb5baabb50463252d744](https://etherscan.io/tx/0x00b0d87bdd24f6273dabd8cb118814977b0e80773f88cb5baabb50463252d744), implementations: [0xCe28685EB204186b557133766eCA00334EB441E4](https://etherscan.io/address/0xCe28685EB204186b557133766eCA00334EB441E4#code) ([diff](https://disco.l2beat.com/diff/eth:0xb08Cc720F511062537ca78BdB0AE691F04F5a957/eth:0xCe28685EB204186b557133766eCA00334EB441E4)) - 2026-01-12 08:51 UTC, upgrade of [SuperchainConfig](https://etherscan.io/address/0x097f99768A0a4a0A81bAbbCB1ea18193bA9D53cC#code): transaction [0x00b0d87bdd24f6273dabd8cb118814977b0e80773f88cb5baabb50463252d744](https://etherscan.io/tx/0x00b0d87bdd24f6273dabd8cb118814977b0e80773f88cb5baabb50463252d744), implementations: [0xb08Cc720F511062537ca78BdB0AE691F04F5a957](https://etherscan.io/address/0xb08Cc720F511062537ca78BdB0AE691F04F5a957#code) ([diff](https://disco.l2beat.com/diff/eth:0x4da82a327773965b8d4D85Fa3dB8249b387458E7/eth:0xb08Cc720F511062537ca78BdB0AE691F04F5a957)) - 2025-06-25 11:06 UTC, deployment of [SuperchainConfig](https://etherscan.io/address/0x097f99768A0a4a0A81bAbbCB1ea18193bA9D53cC#code): transaction [0x63366bb4d9f073e6f0e1de8495baf47a7e1921c02049305253907db5ac6839ca](https://etherscan.io/tx/0x63366bb4d9f073e6f0e1de8495baf47a7e1921c02049305253907db5ac6839ca), implementations: [0x4da82a327773965b8d4D85Fa3dB8249b387458E7](https://etherscan.io/address/0x4da82a327773965b8d4D85Fa3dB8249b387458E7#code) This is NOT the shared SuperchainConfig contract of the OP stack Superchain but rather a local fork. It manages pause states for each chain connected to it, as well as a global pause state for all chains. The guardian role can pause either separately, but each pause expires after 3mo 1d if left untouched. - Roles: - **admin**: ProxyAdmin; ultimately Conduit Multisig 1 - **guardian**: Conduit Multisig 1 Can be upgraded by: Conduit Multisig 1 with no delay Proxy used in: [Aevo](https://l2beat.com/layer2s/projects/aevo#SuperchainConfig), [Ancient8](https://l2beat.com/layer2s/projects/ancient8#SuperchainConfig), [Metal](https://l2beat.com/layer2s/projects/metal#SuperchainConfig), [Mode Network](https://l2beat.com/layer2s/projects/mode#SuperchainConfig), [Nillion](https://l2beat.com/layer2s/projects/nillion#SuperchainConfig), [Orderly Network](https://l2beat.com/layer2s/projects/orderly#SuperchainConfig), [Phala](https://l2beat.com/layer2s/projects/phala#SuperchainConfig), [Superseed](https://l2beat.com/layer2s/projects/superseed#SuperchainConfig), [Zora](https://l2beat.com/layer2s/projects/zora#SuperchainConfig) Implementation used in: [BOB](https://l2beat.com/layer2s/projects/bob#SuperchainConfig), [Katana](https://l2beat.com/layer2s/projects/katana#SuperchainConfig), [Ronin](https://l2beat.com/layer2s/projects/ronin-network#SuperchainConfig) #### L1CrossDomainMessenger Addresses: [0x2a721cBE81a128be0F01040e3353c3805A5EA091](https://etherscan.io/address/0x2a721cBE81a128be0F01040e3353c3805A5EA091#code), [0x59D497530b00062f40950ba8EaB88868bf7F86f0](https://etherscan.io/address/0x59D497530b00062f40950ba8EaB88868bf7F86f0#code) (Implementation (Upgradable)), [0x3A317fCEE068868BE7628eFb233170df2DD5B71d](https://etherscan.io/address/0x3A317fCEE068868BE7628eFb233170df2DD5B71d#code) (Admin) **Past upgrades** (Count of upgrades: 12, Last upgrade: 29d 14h ago, Avg upgrade interval: 2mo 4d) - 2026-09-17 09:31 UTC, upgrade of [L1CrossDomainMessenger](https://etherscan.io/address/0x2a721cBE81a128be0F01040e3353c3805A5EA091#code): transaction [0x4f58067dd453c8a1bcf79ecca906ec4148586a00bab8b68621c88ad97fea3dbc](https://etherscan.io/tx/0x4f58067dd453c8a1bcf79ecca906ec4148586a00bab8b68621c88ad97fea3dbc), implementations: [0xb686F13AfF1e427a1f993F29ab0F2E7383729FE0](https://etherscan.io/address/0xb686F13AfF1e427a1f993F29ab0F2E7383729FE0#code) ([diff](https://disco.l2beat.com/diff/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8/eth:0xb686F13AfF1e427a1f993F29ab0F2E7383729FE0)) - 2026-09-17 09:31 UTC, upgrade of [L1CrossDomainMessenger](https://etherscan.io/address/0x2a721cBE81a128be0F01040e3353c3805A5EA091#code): transaction [0x4f58067dd453c8a1bcf79ecca906ec4148586a00bab8b68621c88ad97fea3dbc](https://etherscan.io/tx/0x4f58067dd453c8a1bcf79ecca906ec4148586a00bab8b68621c88ad97fea3dbc), implementations: [0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8](https://etherscan.io/address/0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8#code) ([diff](https://disco.l2beat.com/diff/eth:0x59D497530b00062f40950ba8EaB88868bf7F86f0/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8)) - 2026-09-17 09:31 UTC, upgrade of [L1CrossDomainMessenger](https://etherscan.io/address/0x2a721cBE81a128be0F01040e3353c3805A5EA091#code): transaction [0x4f58067dd453c8a1bcf79ecca906ec4148586a00bab8b68621c88ad97fea3dbc](https://etherscan.io/tx/0x4f58067dd453c8a1bcf79ecca906ec4148586a00bab8b68621c88ad97fea3dbc), implementations: [0x59D497530b00062f40950ba8EaB88868bf7F86f0](https://etherscan.io/address/0x59D497530b00062f40950ba8EaB88868bf7F86f0#code) ([diff](https://disco.l2beat.com/diff/eth:0xb686F13AfF1e427a1f993F29ab0F2E7383729FE0/eth:0x59D497530b00062f40950ba8EaB88868bf7F86f0)) - 2026-08-04 14:16 UTC, upgrade of [L1CrossDomainMessenger](https://etherscan.io/address/0x2a721cBE81a128be0F01040e3353c3805A5EA091#code): transaction [0xeb6b35d861c5b232c47bc0e604f0834975876f80181776e46cb486f7a398cf03](https://etherscan.io/tx/0xeb6b35d861c5b232c47bc0e604f0834975876f80181776e46cb486f7a398cf03), implementations: [0xb686F13AfF1e427a1f993F29ab0F2E7383729FE0](https://etherscan.io/address/0xb686F13AfF1e427a1f993F29ab0F2E7383729FE0#code) ([diff](https://disco.l2beat.com/diff/eth:0x22D12E0FAebD62d429514A65EBAe32dd316c12D6/eth:0xb686F13AfF1e427a1f993F29ab0F2E7383729FE0)) - 2026-08-04 14:11 UTC, upgrade of [L1CrossDomainMessenger](https://etherscan.io/address/0x2a721cBE81a128be0F01040e3353c3805A5EA091#code): transaction [0xf7dd2207111f0f269b7cdfa8a7fa703b664585513bc113e0d2c8bc7ce9eb355f](https://etherscan.io/tx/0xf7dd2207111f0f269b7cdfa8a7fa703b664585513bc113e0d2c8bc7ce9eb355f), implementations: [0x22D12E0FAebD62d429514A65EBAe32dd316c12D6](https://etherscan.io/address/0x22D12E0FAebD62d429514A65EBAe32dd316c12D6#code) ([diff](https://disco.l2beat.com/diff/eth:0x5D5a095665886119693F0B41d8DFeE78da033e8B/eth:0x22D12E0FAebD62d429514A65EBAe32dd316c12D6)) - 2026-08-04 14:04 UTC, upgrade of [L1CrossDomainMessenger](https://etherscan.io/address/0x2a721cBE81a128be0F01040e3353c3805A5EA091#code): transaction [0xf7628d3121b7e3f4dcd11e06791a07e8ffa71753962baadc04c62944d412a006](https://etherscan.io/tx/0xf7628d3121b7e3f4dcd11e06791a07e8ffa71753962baadc04c62944d412a006), implementations: [0x5D5a095665886119693F0B41d8DFeE78da033e8B](https://etherscan.io/address/0x5D5a095665886119693F0B41d8DFeE78da033e8B#code) ([diff](https://disco.l2beat.com/diff/eth:0x3eA6084748ED1b2A9B5D4426181F1ad8C93F6231/eth:0x5D5a095665886119693F0B41d8DFeE78da033e8B)) - 2026-08-04 13:59 UTC, upgrade of [L1CrossDomainMessenger](https://etherscan.io/address/0x2a721cBE81a128be0F01040e3353c3805A5EA091#code): transaction [0xfb6124f237aaaccedd1f8d1298ae5f3b19871f7af18bd4c791a818487cc199de](https://etherscan.io/tx/0xfb6124f237aaaccedd1f8d1298ae5f3b19871f7af18bd4c791a818487cc199de), implementations: [0x3eA6084748ED1b2A9B5D4426181F1ad8C93F6231](https://etherscan.io/address/0x3eA6084748ED1b2A9B5D4426181F1ad8C93F6231#code) ([diff](https://disco.l2beat.com/diff/eth:0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC/eth:0x3eA6084748ED1b2A9B5D4426181F1ad8C93F6231)) - 2026-08-04 13:40 UTC, upgrade of [L1CrossDomainMessenger](https://etherscan.io/address/0x2a721cBE81a128be0F01040e3353c3805A5EA091#code): transaction [0x2b72943b3cf73e5f4dade0cc6edd2f78bc2cb3f518df2872cf6fd69aea924cc0](https://etherscan.io/tx/0x2b72943b3cf73e5f4dade0cc6edd2f78bc2cb3f518df2872cf6fd69aea924cc0), implementations: [0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC](https://etherscan.io/address/0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC#code) ([diff](https://disco.l2beat.com/diff/eth:0xD3494713A5cfaD3F5359379DfA074E2Ac8C6Fd65/eth:0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC)) - 2026-08-04 13:40 UTC, upgrade of [L1CrossDomainMessenger](https://etherscan.io/address/0x2a721cBE81a128be0F01040e3353c3805A5EA091#code): transaction [0x2b72943b3cf73e5f4dade0cc6edd2f78bc2cb3f518df2872cf6fd69aea924cc0](https://etherscan.io/tx/0x2b72943b3cf73e5f4dade0cc6edd2f78bc2cb3f518df2872cf6fd69aea924cc0), implementations: [0xD3494713A5cfaD3F5359379DfA074E2Ac8C6Fd65](https://etherscan.io/address/0xD3494713A5cfaD3F5359379DfA074E2Ac8C6Fd65#code) ([diff](https://disco.l2beat.com/diff/eth:0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC/eth:0xD3494713A5cfaD3F5359379DfA074E2Ac8C6Fd65)) - 2026-08-04 13:31 UTC, upgrade of [L1CrossDomainMessenger](https://etherscan.io/address/0x2a721cBE81a128be0F01040e3353c3805A5EA091#code): transaction [0xe697fe2a042f60a3fb3f835e122e209bab529a36fe66bfc77af79dbb1bebdfa4](https://etherscan.io/tx/0xe697fe2a042f60a3fb3f835e122e209bab529a36fe66bfc77af79dbb1bebdfa4), implementations: [0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC](https://etherscan.io/address/0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC#code) ([diff](https://disco.l2beat.com/diff/eth:0xD3494713A5cfaD3F5359379DfA074E2Ac8C6Fd65/eth:0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC)) - 2026-08-04 13:31 UTC, upgrade of [L1CrossDomainMessenger](https://etherscan.io/address/0x2a721cBE81a128be0F01040e3353c3805A5EA091#code): transaction [0xe697fe2a042f60a3fb3f835e122e209bab529a36fe66bfc77af79dbb1bebdfa4](https://etherscan.io/tx/0xe697fe2a042f60a3fb3f835e122e209bab529a36fe66bfc77af79dbb1bebdfa4), implementations: [0xD3494713A5cfaD3F5359379DfA074E2Ac8C6Fd65](https://etherscan.io/address/0xD3494713A5cfaD3F5359379DfA074E2Ac8C6Fd65#code) ([diff](https://disco.l2beat.com/diff/eth:0xA5B66A9FBCE3d57dA2b3Bd764d0a05B95052f73F/eth:0xD3494713A5cfaD3F5359379DfA074E2Ac8C6Fd65)) - 2025-04-23 14:46 UTC, upgrade of [L1CrossDomainMessenger](https://etherscan.io/address/0x2a721cBE81a128be0F01040e3353c3805A5EA091#code): transaction [0xe9ed64d1dc4bf02f583f912b831f46ae873996b36901c3b1180ac56c710e1d6f](https://etherscan.io/tx/0xe9ed64d1dc4bf02f583f912b831f46ae873996b36901c3b1180ac56c710e1d6f), implementations: [0xA5B66A9FBCE3d57dA2b3Bd764d0a05B95052f73F](https://etherscan.io/address/0xA5B66A9FBCE3d57dA2b3Bd764d0a05B95052f73F#code) ([diff](https://disco.l2beat.com/diff/eth:0x6c01D349d3010Cc2953fFA0A5e8d176fc273B834/eth:0xA5B66A9FBCE3d57dA2b3Bd764d0a05B95052f73F)) - 2024-07-02 16:12 UTC, deployment of [L1CrossDomainMessenger](https://etherscan.io/address/0x2a721cBE81a128be0F01040e3353c3805A5EA091#code): transaction [0xba20c00dc03b009737ebbcaa3db1263524a1322c5984a4f51fbf7c4ebc979575](https://etherscan.io/tx/0xba20c00dc03b009737ebbcaa3db1263524a1322c5984a4f51fbf7c4ebc979575), implementations: [0x6c01D349d3010Cc2953fFA0A5e8d176fc273B834](https://etherscan.io/address/0x6c01D349d3010Cc2953fFA0A5e8d176fc273B834#code) Sends messages from host chain to this chain, and relays messages back onto host chain. In the event that a message sent from host chain to this chain is rejected for exceeding this chain's epoch gas limit, it can be resubmitted via this contract's replay function. - Roles: - **admin**: ProxyAdmin; ultimately Conduit Multisig 1 Can be upgraded by: Conduit Multisig 1 with no delay Implementation used in: [Aevo](https://l2beat.com/layer2s/projects/aevo#L1CrossDomainMessenger), [BOB](https://l2beat.com/layer2s/projects/bob#L1CrossDomainMessenger), [Ink](https://l2beat.com/layer2s/projects/ink#L1CrossDomainMessenger), [Metal](https://l2beat.com/layer2s/projects/metal#L1CrossDomainMessenger), [Mode Network](https://l2beat.com/layer2s/projects/mode#L1CrossDomainMessenger), [Nillion](https://l2beat.com/layer2s/projects/nillion#L1CrossDomainMessenger), [OP Mainnet](https://l2beat.com/layer2s/projects/op-mainnet#L1CrossDomainMessenger), [Orderly Network](https://l2beat.com/layer2s/projects/orderly#L1CrossDomainMessenger), [Phala](https://l2beat.com/layer2s/projects/phala#L1CrossDomainMessenger), [Ronin](https://l2beat.com/layer2s/projects/ronin-network#L1CrossDomainMessenger), [Settlus](https://l2beat.com/layer2s/projects/settlus#L1CrossDomainMessenger), [Shape](https://l2beat.com/layer2s/projects/shape#L1CrossDomainMessenger), [Soneium](https://l2beat.com/layer2s/projects/soneium#L1CrossDomainMessenger), [Superseed](https://l2beat.com/layer2s/projects/superseed#L1CrossDomainMessenger), [Unichain](https://l2beat.com/layer2s/projects/unichain#L1CrossDomainMessenger), [World Chain](https://l2beat.com/layer2s/projects/world#L1CrossDomainMessenger), [Zora](https://l2beat.com/layer2s/projects/zora#L1CrossDomainMessenger) #### L1StandardBridge (escrow) Addresses: [0x386B76D9cA5F5Fb150B6BFB35CF5379B22B26dd8](https://etherscan.io/address/0x386B76D9cA5F5Fb150B6BFB35CF5379B22B26dd8#code), [0xB37a11AadF167B2F0b8dD85372De4bC66CD4A891](https://etherscan.io/address/0xB37a11AadF167B2F0b8dD85372De4bC66CD4A891#code) (Implementation (Upgradable)), [0x3A317fCEE068868BE7628eFb233170df2DD5B71d](https://etherscan.io/address/0x3A317fCEE068868BE7628eFb233170df2DD5B71d#code) (Admin) **Past upgrades** (Count of upgrades: 20, Last upgrade: 29d 14h ago, Avg upgrade interval: 1mo 9d) - 2026-09-17 09:31 UTC, upgrade of [L1StandardBridge](https://etherscan.io/address/0x386B76D9cA5F5Fb150B6BFB35CF5379B22B26dd8#code): transaction [0x4f58067dd453c8a1bcf79ecca906ec4148586a00bab8b68621c88ad97fea3dbc](https://etherscan.io/tx/0x4f58067dd453c8a1bcf79ecca906ec4148586a00bab8b68621c88ad97fea3dbc), implementations: [0x61525EaaCDdB97D9184aFc205827E6A4fd0Bf62A](https://etherscan.io/address/0x61525EaaCDdB97D9184aFc205827E6A4fd0Bf62A#code) ([diff](https://disco.l2beat.com/diff/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8/eth:0x61525EaaCDdB97D9184aFc205827E6A4fd0Bf62A)) - 2026-09-17 09:31 UTC, upgrade of [L1StandardBridge](https://etherscan.io/address/0x386B76D9cA5F5Fb150B6BFB35CF5379B22B26dd8#code): transaction [0x4f58067dd453c8a1bcf79ecca906ec4148586a00bab8b68621c88ad97fea3dbc](https://etherscan.io/tx/0x4f58067dd453c8a1bcf79ecca906ec4148586a00bab8b68621c88ad97fea3dbc), implementations: [0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8](https://etherscan.io/address/0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8#code) ([diff](https://disco.l2beat.com/diff/eth:0xB37a11AadF167B2F0b8dD85372De4bC66CD4A891/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8)) - 2026-09-17 09:31 UTC, upgrade of [L1StandardBridge](https://etherscan.io/address/0x386B76D9cA5F5Fb150B6BFB35CF5379B22B26dd8#code): transaction [0x4f58067dd453c8a1bcf79ecca906ec4148586a00bab8b68621c88ad97fea3dbc](https://etherscan.io/tx/0x4f58067dd453c8a1bcf79ecca906ec4148586a00bab8b68621c88ad97fea3dbc), implementations: [0xB37a11AadF167B2F0b8dD85372De4bC66CD4A891](https://etherscan.io/address/0xB37a11AadF167B2F0b8dD85372De4bC66CD4A891#code) ([diff](https://disco.l2beat.com/diff/eth:0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC/eth:0xB37a11AadF167B2F0b8dD85372De4bC66CD4A891)) - 2026-08-22 11:12 UTC, upgrade of [L1StandardBridge](https://etherscan.io/address/0x386B76D9cA5F5Fb150B6BFB35CF5379B22B26dd8#code): transaction [0xa2c6d7a895f7793beb83cd3f0734b427fea4982e2ed35044555c52bf3a8a8a23](https://etherscan.io/tx/0xa2c6d7a895f7793beb83cd3f0734b427fea4982e2ed35044555c52bf3a8a8a23), implementations: [0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC](https://etherscan.io/address/0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC#code) ([diff](https://disco.l2beat.com/diff/eth:0x61525EaaCDdB97D9184aFc205827E6A4fd0Bf62A/eth:0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC)) - 2026-08-22 11:12 UTC, upgrade of [L1StandardBridge](https://etherscan.io/address/0x386B76D9cA5F5Fb150B6BFB35CF5379B22B26dd8#code): transaction [0xa2c6d7a895f7793beb83cd3f0734b427fea4982e2ed35044555c52bf3a8a8a23](https://etherscan.io/tx/0xa2c6d7a895f7793beb83cd3f0734b427fea4982e2ed35044555c52bf3a8a8a23), implementations: [0x61525EaaCDdB97D9184aFc205827E6A4fd0Bf62A](https://etherscan.io/address/0x61525EaaCDdB97D9184aFc205827E6A4fd0Bf62A#code) ([diff](https://disco.l2beat.com/diff/eth:0x61525EaaCDdB97D9184aFc205827E6A4fd0Bf62A/eth:0x61525EaaCDdB97D9184aFc205827E6A4fd0Bf62A)) - 2026-08-04 14:16 UTC, upgrade of [L1StandardBridge](https://etherscan.io/address/0x386B76D9cA5F5Fb150B6BFB35CF5379B22B26dd8#code): transaction [0xeb6b35d861c5b232c47bc0e604f0834975876f80181776e46cb486f7a398cf03](https://etherscan.io/tx/0xeb6b35d861c5b232c47bc0e604f0834975876f80181776e46cb486f7a398cf03), implementations: [0x61525EaaCDdB97D9184aFc205827E6A4fd0Bf62A](https://etherscan.io/address/0x61525EaaCDdB97D9184aFc205827E6A4fd0Bf62A#code) ([diff](https://disco.l2beat.com/diff/eth:0xe32B192fb1DcA88fCB1C56B3ACb429e32238aDCb/eth:0x61525EaaCDdB97D9184aFc205827E6A4fd0Bf62A)) - 2026-08-04 14:11 UTC, upgrade of [L1StandardBridge](https://etherscan.io/address/0x386B76D9cA5F5Fb150B6BFB35CF5379B22B26dd8#code): transaction [0xf7dd2207111f0f269b7cdfa8a7fa703b664585513bc113e0d2c8bc7ce9eb355f](https://etherscan.io/tx/0xf7dd2207111f0f269b7cdfa8a7fa703b664585513bc113e0d2c8bc7ce9eb355f), implementations: [0xe32B192fb1DcA88fCB1C56B3ACb429e32238aDCb](https://etherscan.io/address/0xe32B192fb1DcA88fCB1C56B3ACb429e32238aDCb#code) ([diff](https://disco.l2beat.com/diff/eth:0x0b09ba359A106C9ea3b181CBc5F394570c7d2a7A/eth:0xe32B192fb1DcA88fCB1C56B3ACb429e32238aDCb)) - 2026-08-04 14:04 UTC, upgrade of [L1StandardBridge](https://etherscan.io/address/0x386B76D9cA5F5Fb150B6BFB35CF5379B22B26dd8#code): transaction [0xf7628d3121b7e3f4dcd11e06791a07e8ffa71753962baadc04c62944d412a006](https://etherscan.io/tx/0xf7628d3121b7e3f4dcd11e06791a07e8ffa71753962baadc04c62944d412a006), implementations: [0x0b09ba359A106C9ea3b181CBc5F394570c7d2a7A](https://etherscan.io/address/0x0b09ba359A106C9ea3b181CBc5F394570c7d2a7A#code) ([diff](https://disco.l2beat.com/diff/eth:0x78972E88Ab8BBB517a36cAea23b931BAB58AD3c6/eth:0x0b09ba359A106C9ea3b181CBc5F394570c7d2a7A)) - 2026-08-04 13:59 UTC, upgrade of [L1StandardBridge](https://etherscan.io/address/0x386B76D9cA5F5Fb150B6BFB35CF5379B22B26dd8#code): transaction [0xfb6124f237aaaccedd1f8d1298ae5f3b19871f7af18bd4c791a818487cc199de](https://etherscan.io/tx/0xfb6124f237aaaccedd1f8d1298ae5f3b19871f7af18bd4c791a818487cc199de), implementations: [0x78972E88Ab8BBB517a36cAea23b931BAB58AD3c6](https://etherscan.io/address/0x78972E88Ab8BBB517a36cAea23b931BAB58AD3c6#code) ([diff](https://disco.l2beat.com/diff/eth:0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC/eth:0x78972E88Ab8BBB517a36cAea23b931BAB58AD3c6)) - 2026-08-04 13:40 UTC, upgrade of [L1StandardBridge](https://etherscan.io/address/0x386B76D9cA5F5Fb150B6BFB35CF5379B22B26dd8#code): transaction [0x2b72943b3cf73e5f4dade0cc6edd2f78bc2cb3f518df2872cf6fd69aea924cc0](https://etherscan.io/tx/0x2b72943b3cf73e5f4dade0cc6edd2f78bc2cb3f518df2872cf6fd69aea924cc0), implementations: [0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC](https://etherscan.io/address/0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC#code) ([diff](https://disco.l2beat.com/diff/eth:0x64B5a5Ed26DCb17370Ff4d33a8D503f0fbD06CfF/eth:0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC)) - 2026-08-04 13:40 UTC, upgrade of [L1StandardBridge](https://etherscan.io/address/0x386B76D9cA5F5Fb150B6BFB35CF5379B22B26dd8#code): transaction [0x2b72943b3cf73e5f4dade0cc6edd2f78bc2cb3f518df2872cf6fd69aea924cc0](https://etherscan.io/tx/0x2b72943b3cf73e5f4dade0cc6edd2f78bc2cb3f518df2872cf6fd69aea924cc0), implementations: [0x64B5a5Ed26DCb17370Ff4d33a8D503f0fbD06CfF](https://etherscan.io/address/0x64B5a5Ed26DCb17370Ff4d33a8D503f0fbD06CfF#code) ([diff](https://disco.l2beat.com/diff/eth:0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC/eth:0x64B5a5Ed26DCb17370Ff4d33a8D503f0fbD06CfF)) - 2026-08-04 13:31 UTC, upgrade of [L1StandardBridge](https://etherscan.io/address/0x386B76D9cA5F5Fb150B6BFB35CF5379B22B26dd8#code): transaction [0xe697fe2a042f60a3fb3f835e122e209bab529a36fe66bfc77af79dbb1bebdfa4](https://etherscan.io/tx/0xe697fe2a042f60a3fb3f835e122e209bab529a36fe66bfc77af79dbb1bebdfa4), implementations: [0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC](https://etherscan.io/address/0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC#code) ([diff](https://disco.l2beat.com/diff/eth:0x64B5a5Ed26DCb17370Ff4d33a8D503f0fbD06CfF/eth:0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC)) - 2026-08-04 13:31 UTC, upgrade of [L1StandardBridge](https://etherscan.io/address/0x386B76D9cA5F5Fb150B6BFB35CF5379B22B26dd8#code): transaction [0xe697fe2a042f60a3fb3f835e122e209bab529a36fe66bfc77af79dbb1bebdfa4](https://etherscan.io/tx/0xe697fe2a042f60a3fb3f835e122e209bab529a36fe66bfc77af79dbb1bebdfa4), implementations: [0x64B5a5Ed26DCb17370Ff4d33a8D503f0fbD06CfF](https://etherscan.io/address/0x64B5a5Ed26DCb17370Ff4d33a8D503f0fbD06CfF#code) ([diff](https://disco.l2beat.com/diff/eth:0x25DF2d6DDCa09C0f9Fce19373896be075F4f7d98/eth:0x64B5a5Ed26DCb17370Ff4d33a8D503f0fbD06CfF)) - 2025-11-24 20:55 UTC, upgrade of [L1StandardBridge](https://etherscan.io/address/0x386B76D9cA5F5Fb150B6BFB35CF5379B22B26dd8#code): transaction [0x7e05b5e49355a8b5e46139a79cae4374dc441b3f53adabd248a2851997e45323](https://etherscan.io/tx/0x7e05b5e49355a8b5e46139a79cae4374dc441b3f53adabd248a2851997e45323), implementations: [0x25DF2d6DDCa09C0f9Fce19373896be075F4f7d98](https://etherscan.io/address/0x25DF2d6DDCa09C0f9Fce19373896be075F4f7d98#code) ([diff](https://disco.l2beat.com/diff/eth:0xFF30d6E9acecc919e4E9e1A2e67980ee44Df6Ebb/eth:0x25DF2d6DDCa09C0f9Fce19373896be075F4f7d98)) - 2025-08-05 13:35 UTC, upgrade of [L1StandardBridge](https://etherscan.io/address/0x386B76D9cA5F5Fb150B6BFB35CF5379B22B26dd8#code): transaction [0x12d1d0dde1bafad169722a0d6a42fafad00cacc19282bc0f7de4ad39b70afed1](https://etherscan.io/tx/0x12d1d0dde1bafad169722a0d6a42fafad00cacc19282bc0f7de4ad39b70afed1), implementations: [0xFF30d6E9acecc919e4E9e1A2e67980ee44Df6Ebb](https://etherscan.io/address/0xFF30d6E9acecc919e4E9e1A2e67980ee44Df6Ebb#code) ([diff](https://disco.l2beat.com/diff/eth:0x506aadcb7bF93E892a43208d879BAc076eBC97Ef/eth:0xFF30d6E9acecc919e4E9e1A2e67980ee44Df6Ebb)) - 2025-04-23 14:46 UTC, upgrade of [L1StandardBridge](https://etherscan.io/address/0x386B76D9cA5F5Fb150B6BFB35CF5379B22B26dd8#code): transaction [0xe9ed64d1dc4bf02f583f912b831f46ae873996b36901c3b1180ac56c710e1d6f](https://etherscan.io/tx/0xe9ed64d1dc4bf02f583f912b831f46ae873996b36901c3b1180ac56c710e1d6f), implementations: [0x506aadcb7bF93E892a43208d879BAc076eBC97Ef](https://etherscan.io/address/0x506aadcb7bF93E892a43208d879BAc076eBC97Ef#code) ([diff](https://disco.l2beat.com/diff/eth:0xf829F2B0d741712198Aa3F0Be88b68Ec2aB5024b/eth:0x506aadcb7bF93E892a43208d879BAc076eBC97Ef)) - 2025-02-12 09:23 UTC, upgrade of [L1StandardBridge](https://etherscan.io/address/0x386B76D9cA5F5Fb150B6BFB35CF5379B22B26dd8#code): transaction [0x19e7944c32b28126488482597f707797b60c4c3201abacdba5b9ea00b31cfbb4](https://etherscan.io/tx/0x19e7944c32b28126488482597f707797b60c4c3201abacdba5b9ea00b31cfbb4), implementations: [0xf829F2B0d741712198Aa3F0Be88b68Ec2aB5024b](https://etherscan.io/address/0xf829F2B0d741712198Aa3F0Be88b68Ec2aB5024b#code) ([diff](https://disco.l2beat.com/diff/eth:0xA4ba8bd753695B6121722CBB7cd81c71BCFBCA28/eth:0xf829F2B0d741712198Aa3F0Be88b68Ec2aB5024b)) - 2024-07-17 12:11 UTC, upgrade of [L1StandardBridge](https://etherscan.io/address/0x386B76D9cA5F5Fb150B6BFB35CF5379B22B26dd8#code): transaction [0x472c4b57b3828c3f8a846702da5707eccb216d672b4ede4eb4186ffe606b14b3](https://etherscan.io/tx/0x472c4b57b3828c3f8a846702da5707eccb216d672b4ede4eb4186ffe606b14b3), implementations: [0xA4ba8bd753695B6121722CBB7cd81c71BCFBCA28](https://etherscan.io/address/0xA4ba8bd753695B6121722CBB7cd81c71BCFBCA28#code) ([diff](https://disco.l2beat.com/diff/eth:0xE14b12F4843447114A093D99Dc9322b93a967DE6/eth:0xA4ba8bd753695B6121722CBB7cd81c71BCFBCA28)) - 2024-07-16 08:48 UTC, upgrade of [L1StandardBridge](https://etherscan.io/address/0x386B76D9cA5F5Fb150B6BFB35CF5379B22B26dd8#code): transaction [0xf3c21a1c1d5df7cd11018e70254ed8b78bba36107c8231dfee6ff1b1c5702196](https://etherscan.io/tx/0xf3c21a1c1d5df7cd11018e70254ed8b78bba36107c8231dfee6ff1b1c5702196), implementations: [0xE14b12F4843447114A093D99Dc9322b93a967DE6](https://etherscan.io/address/0xE14b12F4843447114A093D99Dc9322b93a967DE6#code) ([diff](https://disco.l2beat.com/diff/eth:0x0Fc6203310c494963eBAdd1157780a613B67eCDf/eth:0xE14b12F4843447114A093D99Dc9322b93a967DE6)) - 2024-07-16 08:48 UTC, upgrade of [L1StandardBridge](https://etherscan.io/address/0x386B76D9cA5F5Fb150B6BFB35CF5379B22B26dd8#code): transaction [0xf3c21a1c1d5df7cd11018e70254ed8b78bba36107c8231dfee6ff1b1c5702196](https://etherscan.io/tx/0xf3c21a1c1d5df7cd11018e70254ed8b78bba36107c8231dfee6ff1b1c5702196), implementations: [0x0Fc6203310c494963eBAdd1157780a613B67eCDf](https://etherscan.io/address/0x0Fc6203310c494963eBAdd1157780a613B67eCDf#code) ([diff](https://disco.l2beat.com/diff/eth:0x7409668285336dBBe720bE3525AEe372Fce4c2ab/eth:0x0Fc6203310c494963eBAdd1157780a613B67eCDf)) - 2024-07-02 16:11 UTC, deployment of [L1StandardBridge](https://etherscan.io/address/0x386B76D9cA5F5Fb150B6BFB35CF5379B22B26dd8#code): transaction [0xd13642194be1a1b8947f8d3cd1504ec56ca67f4ba953cc45e4f135fb118a46f7](https://etherscan.io/tx/0xd13642194be1a1b8947f8d3cd1504ec56ca67f4ba953cc45e4f135fb118a46f7), implementations: [0x7409668285336dBBe720bE3525AEe372Fce4c2ab](https://etherscan.io/address/0x7409668285336dBBe720bE3525AEe372Fce4c2ab#code) The main entry point to deposit ERC20 tokens from host chain to this chain. - Roles: - **admin**: ProxyAdmin; ultimately Conduit Multisig 1 All supported tokens in this escrow are included in the value secured calculation. Can be upgraded by: Conduit Multisig 1 with no delay Implementation used in: [Aevo](https://l2beat.com/layer2s/projects/aevo#L1StandardBridge), [BOB](https://l2beat.com/layer2s/projects/bob#L1StandardBridge), [Ink](https://l2beat.com/layer2s/projects/ink#L1StandardBridge), [Metal](https://l2beat.com/layer2s/projects/metal#L1StandardBridge), [Mode Network](https://l2beat.com/layer2s/projects/mode#L1StandardBridge), [Nillion](https://l2beat.com/layer2s/projects/nillion#L1StandardBridge), [OP Mainnet](https://l2beat.com/layer2s/projects/op-mainnet#L1StandardBridge), [Orderly Network](https://l2beat.com/layer2s/projects/orderly#L1StandardBridge), [Phala](https://l2beat.com/layer2s/projects/phala#L1StandardBridge), [Ronin](https://l2beat.com/layer2s/projects/ronin-network#L1StandardBridge), [Settlus](https://l2beat.com/layer2s/projects/settlus#L1StandardBridge), [Shape](https://l2beat.com/layer2s/projects/shape#L1StandardBridge), [Soneium](https://l2beat.com/layer2s/projects/soneium#L1StandardBridge), [Superseed](https://l2beat.com/layer2s/projects/superseed#L1StandardBridge), [Unichain](https://l2beat.com/layer2s/projects/unichain#L1StandardBridge), [World Chain](https://l2beat.com/layer2s/projects/world#L1StandardBridge), [Zora](https://l2beat.com/layer2s/projects/zora#L1StandardBridge) #### L1ERC721Bridge Addresses: [0x994eEb321F9cD79B077a5455fC248c77f30Dd244](https://etherscan.io/address/0x994eEb321F9cD79B077a5455fC248c77f30Dd244#code), [0x9F164f1d02A81e06D639E55F65a87f0070E3Cb2e](https://etherscan.io/address/0x9F164f1d02A81e06D639E55F65a87f0070E3Cb2e#code) (Implementation (Upgradable)), [0x3A317fCEE068868BE7628eFb233170df2DD5B71d](https://etherscan.io/address/0x3A317fCEE068868BE7628eFb233170df2DD5B71d#code) (Admin) **Past upgrades** (Count of upgrades: 12, Last upgrade: 29d 14h ago, Avg upgrade interval: 2mo 4d) - 2026-09-17 09:31 UTC, upgrade of [L1ERC721Bridge](https://etherscan.io/address/0x994eEb321F9cD79B077a5455fC248c77f30Dd244#code): transaction [0x4f58067dd453c8a1bcf79ecca906ec4148586a00bab8b68621c88ad97fea3dbc](https://etherscan.io/tx/0x4f58067dd453c8a1bcf79ecca906ec4148586a00bab8b68621c88ad97fea3dbc), implementations: [0x74f1aC50EB0BE98853805D381C884f5f9abDEcf9](https://etherscan.io/address/0x74f1aC50EB0BE98853805D381C884f5f9abDEcf9#code) ([diff](https://disco.l2beat.com/diff/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8/eth:0x74f1aC50EB0BE98853805D381C884f5f9abDEcf9)) - 2026-09-17 09:31 UTC, upgrade of [L1ERC721Bridge](https://etherscan.io/address/0x994eEb321F9cD79B077a5455fC248c77f30Dd244#code): transaction [0x4f58067dd453c8a1bcf79ecca906ec4148586a00bab8b68621c88ad97fea3dbc](https://etherscan.io/tx/0x4f58067dd453c8a1bcf79ecca906ec4148586a00bab8b68621c88ad97fea3dbc), implementations: [0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8](https://etherscan.io/address/0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8#code) ([diff](https://disco.l2beat.com/diff/eth:0x9F164f1d02A81e06D639E55F65a87f0070E3Cb2e/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8)) - 2026-09-17 09:31 UTC, upgrade of [L1ERC721Bridge](https://etherscan.io/address/0x994eEb321F9cD79B077a5455fC248c77f30Dd244#code): transaction [0x4f58067dd453c8a1bcf79ecca906ec4148586a00bab8b68621c88ad97fea3dbc](https://etherscan.io/tx/0x4f58067dd453c8a1bcf79ecca906ec4148586a00bab8b68621c88ad97fea3dbc), implementations: [0x9F164f1d02A81e06D639E55F65a87f0070E3Cb2e](https://etherscan.io/address/0x9F164f1d02A81e06D639E55F65a87f0070E3Cb2e#code) ([diff](https://disco.l2beat.com/diff/eth:0x74f1aC50EB0BE98853805D381C884f5f9abDEcf9/eth:0x9F164f1d02A81e06D639E55F65a87f0070E3Cb2e)) - 2026-08-04 14:16 UTC, upgrade of [L1ERC721Bridge](https://etherscan.io/address/0x994eEb321F9cD79B077a5455fC248c77f30Dd244#code): transaction [0xeb6b35d861c5b232c47bc0e604f0834975876f80181776e46cb486f7a398cf03](https://etherscan.io/tx/0xeb6b35d861c5b232c47bc0e604f0834975876f80181776e46cb486f7a398cf03), implementations: [0x74f1aC50EB0BE98853805D381C884f5f9abDEcf9](https://etherscan.io/address/0x74f1aC50EB0BE98853805D381C884f5f9abDEcf9#code) ([diff](https://disco.l2beat.com/diff/eth:0x7f1d12fB2911EB095278085f721e644C1f675696/eth:0x74f1aC50EB0BE98853805D381C884f5f9abDEcf9)) - 2026-08-04 14:11 UTC, upgrade of [L1ERC721Bridge](https://etherscan.io/address/0x994eEb321F9cD79B077a5455fC248c77f30Dd244#code): transaction [0xf7dd2207111f0f269b7cdfa8a7fa703b664585513bc113e0d2c8bc7ce9eb355f](https://etherscan.io/tx/0xf7dd2207111f0f269b7cdfa8a7fa703b664585513bc113e0d2c8bc7ce9eb355f), implementations: [0x7f1d12fB2911EB095278085f721e644C1f675696](https://etherscan.io/address/0x7f1d12fB2911EB095278085f721e644C1f675696#code) ([diff](https://disco.l2beat.com/diff/eth:0x7aE1d3BD877a4C5CA257404ce26BE93A02C98013/eth:0x7f1d12fB2911EB095278085f721e644C1f675696)) - 2026-08-04 14:04 UTC, upgrade of [L1ERC721Bridge](https://etherscan.io/address/0x994eEb321F9cD79B077a5455fC248c77f30Dd244#code): transaction [0xf7628d3121b7e3f4dcd11e06791a07e8ffa71753962baadc04c62944d412a006](https://etherscan.io/tx/0xf7628d3121b7e3f4dcd11e06791a07e8ffa71753962baadc04c62944d412a006), implementations: [0x7aE1d3BD877a4C5CA257404ce26BE93A02C98013](https://etherscan.io/address/0x7aE1d3BD877a4C5CA257404ce26BE93A02C98013#code) ([diff](https://disco.l2beat.com/diff/eth:0x276d3730f219f7ec22274f7263180b8452B46d47/eth:0x7aE1d3BD877a4C5CA257404ce26BE93A02C98013)) - 2026-08-04 13:59 UTC, upgrade of [L1ERC721Bridge](https://etherscan.io/address/0x994eEb321F9cD79B077a5455fC248c77f30Dd244#code): transaction [0xfb6124f237aaaccedd1f8d1298ae5f3b19871f7af18bd4c791a818487cc199de](https://etherscan.io/tx/0xfb6124f237aaaccedd1f8d1298ae5f3b19871f7af18bd4c791a818487cc199de), implementations: [0x276d3730f219f7ec22274f7263180b8452B46d47](https://etherscan.io/address/0x276d3730f219f7ec22274f7263180b8452B46d47#code) ([diff](https://disco.l2beat.com/diff/eth:0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC/eth:0x276d3730f219f7ec22274f7263180b8452B46d47)) - 2026-08-04 13:40 UTC, upgrade of [L1ERC721Bridge](https://etherscan.io/address/0x994eEb321F9cD79B077a5455fC248c77f30Dd244#code): transaction [0x2b72943b3cf73e5f4dade0cc6edd2f78bc2cb3f518df2872cf6fd69aea924cc0](https://etherscan.io/tx/0x2b72943b3cf73e5f4dade0cc6edd2f78bc2cb3f518df2872cf6fd69aea924cc0), implementations: [0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC](https://etherscan.io/address/0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC#code) ([diff](https://disco.l2beat.com/diff/eth:0xAE2AF01232a6c4a4d3012C5eC5b1b35059caF10d/eth:0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC)) - 2026-08-04 13:40 UTC, upgrade of [L1ERC721Bridge](https://etherscan.io/address/0x994eEb321F9cD79B077a5455fC248c77f30Dd244#code): transaction [0x2b72943b3cf73e5f4dade0cc6edd2f78bc2cb3f518df2872cf6fd69aea924cc0](https://etherscan.io/tx/0x2b72943b3cf73e5f4dade0cc6edd2f78bc2cb3f518df2872cf6fd69aea924cc0), implementations: [0xAE2AF01232a6c4a4d3012C5eC5b1b35059caF10d](https://etherscan.io/address/0xAE2AF01232a6c4a4d3012C5eC5b1b35059caF10d#code) ([diff](https://disco.l2beat.com/diff/eth:0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC/eth:0xAE2AF01232a6c4a4d3012C5eC5b1b35059caF10d)) - 2026-08-04 13:31 UTC, upgrade of [L1ERC721Bridge](https://etherscan.io/address/0x994eEb321F9cD79B077a5455fC248c77f30Dd244#code): transaction [0xe697fe2a042f60a3fb3f835e122e209bab529a36fe66bfc77af79dbb1bebdfa4](https://etherscan.io/tx/0xe697fe2a042f60a3fb3f835e122e209bab529a36fe66bfc77af79dbb1bebdfa4), implementations: [0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC](https://etherscan.io/address/0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC#code) ([diff](https://disco.l2beat.com/diff/eth:0xAE2AF01232a6c4a4d3012C5eC5b1b35059caF10d/eth:0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC)) - 2026-08-04 13:31 UTC, upgrade of [L1ERC721Bridge](https://etherscan.io/address/0x994eEb321F9cD79B077a5455fC248c77f30Dd244#code): transaction [0xe697fe2a042f60a3fb3f835e122e209bab529a36fe66bfc77af79dbb1bebdfa4](https://etherscan.io/tx/0xe697fe2a042f60a3fb3f835e122e209bab529a36fe66bfc77af79dbb1bebdfa4), implementations: [0xAE2AF01232a6c4a4d3012C5eC5b1b35059caF10d](https://etherscan.io/address/0xAE2AF01232a6c4a4d3012C5eC5b1b35059caF10d#code) ([diff](https://disco.l2beat.com/diff/eth:0xDF129ECFc63Af454F62b69d03C0f0E21e69bcDAb/eth:0xAE2AF01232a6c4a4d3012C5eC5b1b35059caF10d)) - 2025-04-23 14:46 UTC, upgrade of [L1ERC721Bridge](https://etherscan.io/address/0x994eEb321F9cD79B077a5455fC248c77f30Dd244#code): transaction [0xe9ed64d1dc4bf02f583f912b831f46ae873996b36901c3b1180ac56c710e1d6f](https://etherscan.io/tx/0xe9ed64d1dc4bf02f583f912b831f46ae873996b36901c3b1180ac56c710e1d6f), implementations: [0xDF129ECFc63Af454F62b69d03C0f0E21e69bcDAb](https://etherscan.io/address/0xDF129ECFc63Af454F62b69d03C0f0E21e69bcDAb#code) ([diff](https://disco.l2beat.com/diff/eth:0x3B21dC86c412aC34fF4c679497b274509D73cDcC/eth:0xDF129ECFc63Af454F62b69d03C0f0E21e69bcDAb)) - 2024-07-02 16:12 UTC, deployment of [L1ERC721Bridge](https://etherscan.io/address/0x994eEb321F9cD79B077a5455fC248c77f30Dd244#code): transaction [0xd6346f4354e7b4f58d6ef747d0ac04afa4c80319963ac187a69403ff1dcebdc8](https://etherscan.io/tx/0xd6346f4354e7b4f58d6ef747d0ac04afa4c80319963ac187a69403ff1dcebdc8), implementations: [0x3B21dC86c412aC34fF4c679497b274509D73cDcC](https://etherscan.io/address/0x3B21dC86c412aC34fF4c679497b274509D73cDcC#code) Used to bridge ERC-721 tokens from host chain to this chain. - Roles: - **admin**: ProxyAdmin; ultimately Conduit Multisig 1 Can be upgraded by: Conduit Multisig 1 with no delay Implementation used in: [Aevo](https://l2beat.com/layer2s/projects/aevo#L1ERC721Bridge), [BOB](https://l2beat.com/layer2s/projects/bob#L1ERC721Bridge), [Ink](https://l2beat.com/layer2s/projects/ink#L1ERC721Bridge), [Metal](https://l2beat.com/layer2s/projects/metal#L1ERC721Bridge), [Mode Network](https://l2beat.com/layer2s/projects/mode#L1ERC721Bridge), [Nillion](https://l2beat.com/layer2s/projects/nillion#L1ERC721Bridge), [OP Mainnet](https://l2beat.com/layer2s/projects/op-mainnet#L1ERC721Bridge), [Orderly Network](https://l2beat.com/layer2s/projects/orderly#L1ERC721Bridge), [Phala](https://l2beat.com/layer2s/projects/phala#L1ERC721Bridge), [Ronin](https://l2beat.com/layer2s/projects/ronin-network#L1ERC721Bridge), [Settlus](https://l2beat.com/layer2s/projects/settlus#L1ERC721Bridge), [Shape](https://l2beat.com/layer2s/projects/shape#L1ERC721Bridge), [Soneium](https://l2beat.com/layer2s/projects/soneium#L1ERC721Bridge), [Superseed](https://l2beat.com/layer2s/projects/superseed#L1ERC721Bridge), [Unichain](https://l2beat.com/layer2s/projects/unichain#L1ERC721Bridge), [World Chain](https://l2beat.com/layer2s/projects/world#L1ERC721Bridge), [Zora](https://l2beat.com/layer2s/projects/zora#L1ERC721Bridge) #### PreimageOracle Addresses: [0x1E1d73536A081Ef2F355d29794547a9770Aeb1E0](https://etherscan.io/address/0x1E1d73536A081Ef2F355d29794547a9770Aeb1E0#code) The PreimageOracle contract is used to load the required data from L1 for a dispute game. Implementation used in: [Ink](https://l2beat.com/layer2s/projects/ink#PreimageOracle), [Katana](https://l2beat.com/layer2s/projects/katana#PreimageOracle), [Metal](https://l2beat.com/layer2s/projects/metal#PreimageOracle), [Mode Network](https://l2beat.com/layer2s/projects/mode#PreimageOracle), [Nillion](https://l2beat.com/layer2s/projects/nillion#PreimageOracle), [OP Mainnet](https://l2beat.com/layer2s/projects/op-mainnet#PreimageOracle), [Orderly Network](https://l2beat.com/layer2s/projects/orderly#PreimageOracle), [Phala](https://l2beat.com/layer2s/projects/phala#PreimageOracle), [Ronin](https://l2beat.com/layer2s/projects/ronin-network#PreimageOracle), [Settlus](https://l2beat.com/layer2s/projects/settlus#PreimageOracle), [Shape](https://l2beat.com/layer2s/projects/shape#PreimageOracle), [Superseed](https://l2beat.com/layer2s/projects/superseed#PreimageOracle), [Unichain](https://l2beat.com/layer2s/projects/unichain#PreimageOracle), [World Chain](https://l2beat.com/layer2s/projects/world#PreimageOracle), [Zora](https://l2beat.com/layer2s/projects/zora#PreimageOracle) #### AnchorStateRegistry Addresses: [0x2613d77fFBE105CA861D526061dC3ef191E17051](https://etherscan.io/address/0x2613d77fFBE105CA861D526061dC3ef191E17051#code), [0x8F40Cc98D694AB986F026C5383A181FCc9B6B281](https://etherscan.io/address/0x8F40Cc98D694AB986F026C5383A181FCc9B6B281#code) (Implementation (Upgradable)), [0x3A317fCEE068868BE7628eFb233170df2DD5B71d](https://etherscan.io/address/0x3A317fCEE068868BE7628eFb233170df2DD5B71d#code) (Admin) **Past upgrades** (Count of upgrades: 3, Last upgrade: 29d 14h ago, Avg upgrade interval: 18d 8h) - 2026-09-17 09:31 UTC, upgrade of [AnchorStateRegistry](https://etherscan.io/address/0x2613d77fFBE105CA861D526061dC3ef191E17051#code): transaction [0x4f58067dd453c8a1bcf79ecca906ec4148586a00bab8b68621c88ad97fea3dbc](https://etherscan.io/tx/0x4f58067dd453c8a1bcf79ecca906ec4148586a00bab8b68621c88ad97fea3dbc), implementations: [0x36398155Cd17cfe804F69b233eDDA800DD4D5aA5](https://etherscan.io/address/0x36398155Cd17cfe804F69b233eDDA800DD4D5aA5#code) ([diff](https://disco.l2beat.com/diff/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8/eth:0x36398155Cd17cfe804F69b233eDDA800DD4D5aA5)) - 2026-09-17 09:31 UTC, upgrade of [AnchorStateRegistry](https://etherscan.io/address/0x2613d77fFBE105CA861D526061dC3ef191E17051#code): transaction [0x4f58067dd453c8a1bcf79ecca906ec4148586a00bab8b68621c88ad97fea3dbc](https://etherscan.io/tx/0x4f58067dd453c8a1bcf79ecca906ec4148586a00bab8b68621c88ad97fea3dbc), implementations: [0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8](https://etherscan.io/address/0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8#code) ([diff](https://disco.l2beat.com/diff/eth:0x8F40Cc98D694AB986F026C5383A181FCc9B6B281/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8)) - 2026-09-17 09:31 UTC, upgrade of [AnchorStateRegistry](https://etherscan.io/address/0x2613d77fFBE105CA861D526061dC3ef191E17051#code): transaction [0x4f58067dd453c8a1bcf79ecca906ec4148586a00bab8b68621c88ad97fea3dbc](https://etherscan.io/tx/0x4f58067dd453c8a1bcf79ecca906ec4148586a00bab8b68621c88ad97fea3dbc), implementations: [0x8F40Cc98D694AB986F026C5383A181FCc9B6B281](https://etherscan.io/address/0x8F40Cc98D694AB986F026C5383A181FCc9B6B281#code) ([diff](https://disco.l2beat.com/diff/eth:0xeb69cC681E8D4a557b30DFFBAd85aFfD47a2CF2E/eth:0x8F40Cc98D694AB986F026C5383A181FCc9B6B281)) - 2026-08-04 14:11 UTC, deployment of [AnchorStateRegistry](https://etherscan.io/address/0x2613d77fFBE105CA861D526061dC3ef191E17051#code): transaction [0xf7dd2207111f0f269b7cdfa8a7fa703b664585513bc113e0d2c8bc7ce9eb355f](https://etherscan.io/tx/0xf7dd2207111f0f269b7cdfa8a7fa703b664585513bc113e0d2c8bc7ce9eb355f), implementations: [0xeb69cC681E8D4a557b30DFFBAd85aFfD47a2CF2E](https://etherscan.io/address/0xeb69cC681E8D4a557b30DFFBAd85aFfD47a2CF2E#code) Contains the latest confirmed state root that can be used as a starting point in a dispute game. This variant stores respectedGameType, retirementTimestamp, and disputeGameFinalityDelaySeconds locally and drops the legacy *FromGame fields, since the AggregateVerifier model does not expose vm()/weth()/absolutePrestate() on its game implementation. - Roles: - **admin**: ProxyAdmin; ultimately Conduit Multisig 1 Can be upgraded by: Conduit Multisig 1 with no delay Implementation used in: [Ink](https://l2beat.com/layer2s/projects/ink#AnchorStateRegistry), [Katana](https://l2beat.com/layer2s/projects/katana#AnchorStateRegistry), [Metal](https://l2beat.com/layer2s/projects/metal#AnchorStateRegistry), [Mode Network](https://l2beat.com/layer2s/projects/mode#AnchorStateRegistry), [Nillion](https://l2beat.com/layer2s/projects/nillion#AnchorStateRegistry), [OP Mainnet](https://l2beat.com/layer2s/projects/op-mainnet#AnchorStateRegistry), [Orderly Network](https://l2beat.com/layer2s/projects/orderly#AnchorStateRegistry), [Phala](https://l2beat.com/layer2s/projects/phala#AnchorStateRegistry), [Ronin](https://l2beat.com/layer2s/projects/ronin-network#AnchorStateRegistry), [Settlus](https://l2beat.com/layer2s/projects/settlus#AnchorStateRegistry), [Shape](https://l2beat.com/layer2s/projects/shape#AnchorStateRegistry), [Soneium](https://l2beat.com/layer2s/projects/soneium#AnchorStateRegistry), [Superseed](https://l2beat.com/layer2s/projects/superseed#AnchorStateRegistry), [Unichain](https://l2beat.com/layer2s/projects/unichain#AnchorStateRegistry), [World Chain](https://l2beat.com/layer2s/projects/world#AnchorStateRegistry), [Zora](https://l2beat.com/layer2s/projects/zora#AnchorStateRegistry) #### ProxyAdmin (0x3A31…B71d) Addresses: [0x3A317fCEE068868BE7628eFb233170df2DD5B71d](https://etherscan.io/address/0x3A317fCEE068868BE7628eFb233170df2DD5B71d#code) - Roles: - **owner**: Conduit Multisig 1 #### DelayedWETH Addresses: [0x64555e021B913963e2D17de97efCc2723D3ec037](https://etherscan.io/address/0x64555e021B913963e2D17de97efCc2723D3ec037#code), [0xE440CC08A71694C8229323803F59024E3144630e](https://etherscan.io/address/0xE440CC08A71694C8229323803F59024E3144630e#code) (Implementation (Upgradable)), [0x3A317fCEE068868BE7628eFb233170df2DD5B71d](https://etherscan.io/address/0x3A317fCEE068868BE7628eFb233170df2DD5B71d#code) (Admin) **Past upgrades** (Count of upgrades: 1, Last upgrade: 29d 14h ago, Avg upgrade interval: 14d 19h) - 2026-09-17 09:31 UTC, upgrade of [DelayedWETH](https://etherscan.io/address/0x64555e021B913963e2D17de97efCc2723D3ec037#code): transaction [0x4f58067dd453c8a1bcf79ecca906ec4148586a00bab8b68621c88ad97fea3dbc](https://etherscan.io/tx/0x4f58067dd453c8a1bcf79ecca906ec4148586a00bab8b68621c88ad97fea3dbc), implementations: [0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8](https://etherscan.io/address/0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8#code) ([diff](https://disco.l2beat.com/diff/eth:0xE440CC08A71694C8229323803F59024E3144630e/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8)) - 2026-09-17 09:31 UTC, deployment of [DelayedWETH](https://etherscan.io/address/0x64555e021B913963e2D17de97efCc2723D3ec037#code): transaction [0x4f58067dd453c8a1bcf79ecca906ec4148586a00bab8b68621c88ad97fea3dbc](https://etherscan.io/tx/0x4f58067dd453c8a1bcf79ecca906ec4148586a00bab8b68621c88ad97fea3dbc), implementations: [0xE440CC08A71694C8229323803F59024E3144630e](https://etherscan.io/address/0xE440CC08A71694C8229323803F59024E3144630e#code) Contract designed to hold the bonded ETH for each game. It is designed as a wrapper around WETH to allow an owner to function as a backstop if a game would incorrectly distribute funds. - Roles: - **admin**: ProxyAdmin; ultimately Conduit Multisig 1 Can be upgraded by: Conduit Multisig 1 with no delay Implementation used in: [Ink](https://l2beat.com/layer2s/projects/ink#DelayedWETH), [Katana](https://l2beat.com/layer2s/projects/katana#DelayedWETH), [Metal](https://l2beat.com/layer2s/projects/metal#DelayedWETH), [Mode Network](https://l2beat.com/layer2s/projects/mode#DelayedWETH), [Nillion](https://l2beat.com/layer2s/projects/nillion#DelayedWETH), [OP Mainnet](https://l2beat.com/layer2s/projects/op-mainnet#DelayedWETH), [Orderly Network](https://l2beat.com/layer2s/projects/orderly#DelayedWETH), [Phala](https://l2beat.com/layer2s/projects/phala#DelayedWETH), [Ronin](https://l2beat.com/layer2s/projects/ronin-network#DelayedWETH), [Settlus](https://l2beat.com/layer2s/projects/settlus#DelayedWETH), [Shape](https://l2beat.com/layer2s/projects/shape#DelayedWETH), [Soneium](https://l2beat.com/layer2s/projects/soneium#DelayedWETH), [Superseed](https://l2beat.com/layer2s/projects/superseed#DelayedWETH), [Unichain](https://l2beat.com/layer2s/projects/unichain#DelayedWETH), [World Chain](https://l2beat.com/layer2s/projects/world#DelayedWETH), [Zora](https://l2beat.com/layer2s/projects/zora#DelayedWETH) #### L1ERC20TokenBridge (escrow) Addresses: [0x912C7271a6A3622dfb8B218eb46a6122aB046C79](https://etherscan.io/address/0x912C7271a6A3622dfb8B218eb46a6122aB046C79#code), [0x6bc726C993103197C41d787dd72eCd4D2e1614E8](https://etherscan.io/address/0x6bc726C993103197C41d787dd72eCd4D2e1614E8#code) (Implementation (Upgradable)), [0x3e40D73EB977Dc6a537aF587D48316feE66E9C8c](https://etherscan.io/address/0x3e40D73EB977Dc6a537aF587D48316feE66E9C8c#code) (Admin) **Past upgrades** (Count of upgrades: No upgrades, Last upgrade: N/A, Avg upgrade interval: N/A) - 2024-09-17 16:43 UTC, deployment of [L1ERC20TokenBridge](https://etherscan.io/address/0x912C7271a6A3622dfb8B218eb46a6122aB046C79#code): transaction [0x7ce2acc826dbccea48fc0d45858f428df245e825147aa96c020b57c71f5b6c96](https://etherscan.io/tx/0x7ce2acc826dbccea48fc0d45858f428df245e825147aa96c020b57c71f5b6c96), implementations: [0x6bc726C993103197C41d787dd72eCd4D2e1614E8](https://etherscan.io/address/0x6bc726C993103197C41d787dd72eCd4D2e1614E8#code) Escrow for custom external tokens that use the canonical bridge for messaging but are governed externally. The following tokens are included in the value secured calculation: wstETH #### MIPS Addresses: [0xaCc005DCd857B401e4732E6F7837135A22825cfA](https://etherscan.io/address/0xaCc005DCd857B401e4732E6F7837135A22825cfA#code) The MIPS contract is used to execute the final step of the dispute game which objectively determines the winner of the dispute. Implementation used in: [Ink](https://l2beat.com/layer2s/projects/ink#MIPS), [Katana](https://l2beat.com/layer2s/projects/katana#MIPS), [Metal](https://l2beat.com/layer2s/projects/metal#MIPS), [Mode Network](https://l2beat.com/layer2s/projects/mode#MIPS), [Nillion](https://l2beat.com/layer2s/projects/nillion#MIPS), [OP Mainnet](https://l2beat.com/layer2s/projects/op-mainnet#MIPS), [Orderly Network](https://l2beat.com/layer2s/projects/orderly#MIPS), [Phala](https://l2beat.com/layer2s/projects/phala#MIPS), [Ronin](https://l2beat.com/layer2s/projects/ronin-network#MIPS), [Settlus](https://l2beat.com/layer2s/projects/settlus#MIPS), [Shape](https://l2beat.com/layer2s/projects/shape#MIPS), [Superseed](https://l2beat.com/layer2s/projects/superseed#MIPS), [Unichain](https://l2beat.com/layer2s/projects/unichain#MIPS), [World Chain](https://l2beat.com/layer2s/projects/world#MIPS), [Zora](https://l2beat.com/layer2s/projects/zora#MIPS) #### ProxyAdmin (0xb489…d0b5) Addresses: [0xb4899FF43Ae727B1E9CB19AC44660e4A43Fad0b5](https://etherscan.io/address/0xb4899FF43Ae727B1E9CB19AC44660e4A43Fad0b5#code) - Roles: - **owner**: Conduit Multisig 1 Implementation used in: [Aevo](https://l2beat.com/layer2s/projects/aevo#ProxyAdmin), [Ancient8](https://l2beat.com/layer2s/projects/ancient8#ProxyAdmin), [Metal](https://l2beat.com/layer2s/projects/metal#ProxyAdmin), [Mode Network](https://l2beat.com/layer2s/projects/mode#ProxyAdmin), [Nillion](https://l2beat.com/layer2s/projects/nillion#ProxyAdmin), [Orderly Network](https://l2beat.com/layer2s/projects/orderly#ProxyAdmin), [Phala](https://l2beat.com/layer2s/projects/phala#ProxyAdmin), [Superseed](https://l2beat.com/layer2s/projects/superseed#ProxyAdmin), [Zora](https://l2beat.com/layer2s/projects/zora#ProxyAdmin) #### OptimismMintableERC20Factory Addresses: [0xc77ece87C91C44AFb5f19638f9a0F75b5d90E932](https://etherscan.io/address/0xc77ece87C91C44AFb5f19638f9a0F75b5d90E932#code), [0xaAbEA75Da509fA518Fd8a91Eae4BE5813B829b12](https://etherscan.io/address/0xaAbEA75Da509fA518Fd8a91Eae4BE5813B829b12#code) (Implementation (Upgradable)), [0x3A317fCEE068868BE7628eFb233170df2DD5B71d](https://etherscan.io/address/0x3A317fCEE068868BE7628eFb233170df2DD5B71d#code) (Admin) **Past upgrades** (Count of upgrades: 8, Last upgrade: 29d 14h ago, Avg upgrade interval: 3mo 2d) - 2026-09-17 09:31 UTC, upgrade of [OptimismMintableERC20Factory](https://etherscan.io/address/0xc77ece87C91C44AFb5f19638f9a0F75b5d90E932#code): transaction [0x4f58067dd453c8a1bcf79ecca906ec4148586a00bab8b68621c88ad97fea3dbc](https://etherscan.io/tx/0x4f58067dd453c8a1bcf79ecca906ec4148586a00bab8b68621c88ad97fea3dbc), implementations: [0x8ee6fB13c6c9a7e401531168E196Fbf8b05cEabB](https://etherscan.io/address/0x8ee6fB13c6c9a7e401531168E196Fbf8b05cEabB#code) ([diff](https://disco.l2beat.com/diff/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8/eth:0x8ee6fB13c6c9a7e401531168E196Fbf8b05cEabB)) - 2026-09-17 09:31 UTC, upgrade of [OptimismMintableERC20Factory](https://etherscan.io/address/0xc77ece87C91C44AFb5f19638f9a0F75b5d90E932#code): transaction [0x4f58067dd453c8a1bcf79ecca906ec4148586a00bab8b68621c88ad97fea3dbc](https://etherscan.io/tx/0x4f58067dd453c8a1bcf79ecca906ec4148586a00bab8b68621c88ad97fea3dbc), implementations: [0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8](https://etherscan.io/address/0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8#code) ([diff](https://disco.l2beat.com/diff/eth:0xaAbEA75Da509fA518Fd8a91Eae4BE5813B829b12/eth:0x2476c911E6D4D9411E677D8Faf15a64ac1fDEEe8)) - 2026-09-17 09:31 UTC, upgrade of [OptimismMintableERC20Factory](https://etherscan.io/address/0xc77ece87C91C44AFb5f19638f9a0F75b5d90E932#code): transaction [0x4f58067dd453c8a1bcf79ecca906ec4148586a00bab8b68621c88ad97fea3dbc](https://etherscan.io/tx/0x4f58067dd453c8a1bcf79ecca906ec4148586a00bab8b68621c88ad97fea3dbc), implementations: [0xaAbEA75Da509fA518Fd8a91Eae4BE5813B829b12](https://etherscan.io/address/0xaAbEA75Da509fA518Fd8a91Eae4BE5813B829b12#code) ([diff](https://disco.l2beat.com/diff/eth:0x8ee6fB13c6c9a7e401531168E196Fbf8b05cEabB/eth:0xaAbEA75Da509fA518Fd8a91Eae4BE5813B829b12)) - 2026-08-04 14:16 UTC, upgrade of [OptimismMintableERC20Factory](https://etherscan.io/address/0xc77ece87C91C44AFb5f19638f9a0F75b5d90E932#code): transaction [0xeb6b35d861c5b232c47bc0e604f0834975876f80181776e46cb486f7a398cf03](https://etherscan.io/tx/0xeb6b35d861c5b232c47bc0e604f0834975876f80181776e46cb486f7a398cf03), implementations: [0x8ee6fB13c6c9a7e401531168E196Fbf8b05cEabB](https://etherscan.io/address/0x8ee6fB13c6c9a7e401531168E196Fbf8b05cEabB#code) ([diff](https://disco.l2beat.com/diff/eth:0x5493f4677A186f64805fe7317D6993ba4863988F/eth:0x8ee6fB13c6c9a7e401531168E196Fbf8b05cEabB)) - 2026-08-04 13:59 UTC, upgrade of [OptimismMintableERC20Factory](https://etherscan.io/address/0xc77ece87C91C44AFb5f19638f9a0F75b5d90E932#code): transaction [0xfb6124f237aaaccedd1f8d1298ae5f3b19871f7af18bd4c791a818487cc199de](https://etherscan.io/tx/0xfb6124f237aaaccedd1f8d1298ae5f3b19871f7af18bd4c791a818487cc199de), implementations: [0x5493f4677A186f64805fe7317D6993ba4863988F](https://etherscan.io/address/0x5493f4677A186f64805fe7317D6993ba4863988F#code) ([diff](https://disco.l2beat.com/diff/eth:0xE01efbeb1089D1d1dB9c6c8b135C934C0734c846/eth:0x5493f4677A186f64805fe7317D6993ba4863988F)) - 2026-08-04 13:40 UTC, upgrade of [OptimismMintableERC20Factory](https://etherscan.io/address/0xc77ece87C91C44AFb5f19638f9a0F75b5d90E932#code): transaction [0x2b72943b3cf73e5f4dade0cc6edd2f78bc2cb3f518df2872cf6fd69aea924cc0](https://etherscan.io/tx/0x2b72943b3cf73e5f4dade0cc6edd2f78bc2cb3f518df2872cf6fd69aea924cc0), implementations: [0xE01efbeb1089D1d1dB9c6c8b135C934C0734c846](https://etherscan.io/address/0xE01efbeb1089D1d1dB9c6c8b135C934C0734c846#code) ([diff](https://disco.l2beat.com/diff/eth:0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC/eth:0xE01efbeb1089D1d1dB9c6c8b135C934C0734c846)) - 2026-08-04 13:31 UTC, upgrade of [OptimismMintableERC20Factory](https://etherscan.io/address/0xc77ece87C91C44AFb5f19638f9a0F75b5d90E932#code): transaction [0xe697fe2a042f60a3fb3f835e122e209bab529a36fe66bfc77af79dbb1bebdfa4](https://etherscan.io/tx/0xe697fe2a042f60a3fb3f835e122e209bab529a36fe66bfc77af79dbb1bebdfa4), implementations: [0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC](https://etherscan.io/address/0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC#code) ([diff](https://disco.l2beat.com/diff/eth:0xE01efbeb1089D1d1dB9c6c8b135C934C0734c846/eth:0xd81f43eDBCAcb4c29a9bA38a13Ee5d79278270cC)) - 2026-08-04 13:31 UTC, upgrade of [OptimismMintableERC20Factory](https://etherscan.io/address/0xc77ece87C91C44AFb5f19638f9a0F75b5d90E932#code): transaction [0xe697fe2a042f60a3fb3f835e122e209bab529a36fe66bfc77af79dbb1bebdfa4](https://etherscan.io/tx/0xe697fe2a042f60a3fb3f835e122e209bab529a36fe66bfc77af79dbb1bebdfa4), implementations: [0xE01efbeb1089D1d1dB9c6c8b135C934C0734c846](https://etherscan.io/address/0xE01efbeb1089D1d1dB9c6c8b135C934C0734c846#code) ([diff](https://disco.l2beat.com/diff/eth:0xf885DA6A3B4c93905b02f36f9a13680922A554b0/eth:0xE01efbeb1089D1d1dB9c6c8b135C934C0734c846)) - 2024-07-02 16:12 UTC, deployment of [OptimismMintableERC20Factory](https://etherscan.io/address/0xc77ece87C91C44AFb5f19638f9a0F75b5d90E932#code): transaction [0x25c6d394396aef5f15c5f4fd388c8ebf206b71dfe6ced6d1933573016d7cee77](https://etherscan.io/tx/0x25c6d394396aef5f15c5f4fd388c8ebf206b71dfe6ced6d1933573016d7cee77), implementations: [0xf885DA6A3B4c93905b02f36f9a13680922A554b0](https://etherscan.io/address/0xf885DA6A3B4c93905b02f36f9a13680922A554b0#code) A helper contract that generates OptimismMintableERC20 contracts on the network it's deployed to. OptimismMintableERC20 is a standard extension of the base ERC20 token contract designed to allow the L1StandardBridge contracts to mint and burn tokens. This makes it possible to use an OptimismMintableERC20 as this chain's representation of a token on the host chain, or vice-versa. - Roles: - **admin**: ProxyAdmin; ultimately Conduit Multisig 1 Can be upgraded by: Conduit Multisig 1 with no delay Implementation used in: [Aevo](https://l2beat.com/layer2s/projects/aevo#OptimismMintableERC20Factory), [BOB](https://l2beat.com/layer2s/projects/bob#OptimismMintableERC20Factory), [Ink](https://l2beat.com/layer2s/projects/ink#OptimismMintableERC20Factory), [Metal](https://l2beat.com/layer2s/projects/metal#OptimismMintableERC20Factory), [Mode Network](https://l2beat.com/layer2s/projects/mode#OptimismMintableERC20Factory), [Nillion](https://l2beat.com/layer2s/projects/nillion#OptimismMintableERC20Factory), [OP Mainnet](https://l2beat.com/layer2s/projects/op-mainnet#OptimismMintableERC20Factory), [Orderly Network](https://l2beat.com/layer2s/projects/orderly#OptimismMintableERC20Factory), [Phala](https://l2beat.com/layer2s/projects/phala#OptimismMintableERC20Factory), [Ronin](https://l2beat.com/layer2s/projects/ronin-network#OptimismMintableERC20Factory), [Settlus](https://l2beat.com/layer2s/projects/settlus#OptimismMintableERC20Factory), [Shape](https://l2beat.com/layer2s/projects/shape#OptimismMintableERC20Factory), [Soneium](https://l2beat.com/layer2s/projects/soneium#OptimismMintableERC20Factory), [Superseed](https://l2beat.com/layer2s/projects/superseed#OptimismMintableERC20Factory), [Unichain](https://l2beat.com/layer2s/projects/unichain#OptimismMintableERC20Factory), [World Chain](https://l2beat.com/layer2s/projects/world#OptimismMintableERC20Factory), [Zora](https://l2beat.com/layer2s/projects/zora#OptimismMintableERC20Factory) #### PermissionedDisputeGame Addresses: [0xe1dFFCBE4e22B813F26d2106D943C102e7cAb87e](https://etherscan.io/address/0xe1dFFCBE4e22B813F26d2106D943C102e7cAb87e#code) Same as FaultDisputeGame, but only two permissioned addresses are designated as proposer and challenger. Implementation used in: [Katana](https://l2beat.com/layer2s/projects/katana#PermissionedDisputeGame), [Metal](https://l2beat.com/layer2s/projects/metal#PermissionedDisputeGame), [Mode Network](https://l2beat.com/layer2s/projects/mode#PermissionedDisputeGame), [Nillion](https://l2beat.com/layer2s/projects/nillion#PermissionedDisputeGame), [Orderly Network](https://l2beat.com/layer2s/projects/orderly#PermissionedDisputeGame), [Phala](https://l2beat.com/layer2s/projects/phala#PermissionedDisputeGame), [Ronin](https://l2beat.com/layer2s/projects/ronin-network#PermissionedDisputeGame), [Settlus](https://l2beat.com/layer2s/projects/settlus#PermissionedDisputeGame), [Shape](https://l2beat.com/layer2s/projects/shape#PermissionedDisputeGame), [Superseed](https://l2beat.com/layer2s/projects/superseed#PermissionedDisputeGame), [World Chain](https://l2beat.com/layer2s/projects/world#PermissionedDisputeGame), [Zora](https://l2beat.com/layer2s/projects/zora#PermissionedDisputeGame) ### Zircuit #### L1Block Addresses: [0x4200000000000000000000000000000000000015](https://explorer.zircuit.com/address/0x4200000000000000000000000000000000000015#code), [0x3Ba4007f5C922FBb33C454B41ea7a1f11E83df2C](https://explorer.zircuit.com/address/0x3Ba4007f5C922FBb33C454B41ea7a1f11E83df2C#code) (Implementation (Upgradable)), [0x4200000000000000000000000000000000000018](https://explorer.zircuit.com/address/0x4200000000000000000000000000000000000018#code) (Admin) **Past upgrades** (Count of upgrades: 2, Last upgrade: 1mo 1d ago, Avg upgrade interval: 5mo 24d) - 2026-09-15 16:30 UTC, upgrade of [L1Block](https://explorer.zircuit.com/address/0x4200000000000000000000000000000000000015#code): transaction [0xcd60191626fa3124e7031235c52f0adf6be545ebbd7cf55641bd9dabcbedaf6a](https://explorer.zircuit.com/tx/0xcd60191626fa3124e7031235c52f0adf6be545ebbd7cf55641bd9dabcbedaf6a), implementations: [0x3Ba4007f5C922FBb33C454B41ea7a1f11E83df2C](https://explorer.zircuit.com/address/0x3Ba4007f5C922FBb33C454B41ea7a1f11E83df2C#code) ([diff](https://disco.l2beat.com/diff/zircuit:0xe95F7EdfB4cbf87eD14d94913448d89282513d66/zircuit:0x3Ba4007f5C922FBb33C454B41ea7a1f11E83df2C)) - 2026-08-04 14:50 UTC, upgrade of [L1Block](https://explorer.zircuit.com/address/0x4200000000000000000000000000000000000015#code): transaction [0xd89e381f4e17d7226144ae90c4efef010f4f085afb76b191add65dcf51aef089](https://explorer.zircuit.com/tx/0xd89e381f4e17d7226144ae90c4efef010f4f085afb76b191add65dcf51aef089), implementations: [0xe95F7EdfB4cbf87eD14d94913448d89282513d66](https://explorer.zircuit.com/address/0xe95F7EdfB4cbf87eD14d94913448d89282513d66#code) ([diff](https://disco.l2beat.com/diff/zircuit:0xFf256497D61dcd71a9e9Ff43967C13fdE1F72D12/zircuit:0xe95F7EdfB4cbf87eD14d94913448d89282513d66)) - 2025-05-12 16:00 UTC, deployment of [L1Block](https://explorer.zircuit.com/address/0x4200000000000000000000000000000000000015#code): transaction [0xe992e00998b34075506d2726a274db07a62af6cdd9d527bfda9128114603cfbd](https://explorer.zircuit.com/tx/0xe992e00998b34075506d2726a274db07a62af6cdd9d527bfda9128114603cfbd), implementations: [0xFf256497D61dcd71a9e9Ff43967C13fdE1F72D12](https://explorer.zircuit.com/address/0xFf256497D61dcd71a9e9Ff43967C13fdE1F72D12#code) Simple contract that returns information about the latest L1 block, which is derived permissionlessly from the L1 chain. - Roles: - **admin**: L2ProxyAdmin; ultimately EOA 3 Can be upgraded by: EOA 3 with no delay #### L2ProxyAdmin Addresses: [0x4200000000000000000000000000000000000018](https://explorer.zircuit.com/address/0x4200000000000000000000000000000000000018#code), [0x893c2CEEb71D38514daF67728d3Ff1b213FC4B5F](https://explorer.zircuit.com/address/0x893c2CEEb71D38514daF67728d3Ff1b213FC4B5F#code) (Implementation (Upgradable)), [0x4200000000000000000000000000000000000018](https://explorer.zircuit.com/address/0x4200000000000000000000000000000000000018#code) (Admin) **Past upgrades** (Count of upgrades: No upgrades, Last upgrade: N/A, Avg upgrade interval: N/A) - 2026-09-23 16:00 UTC, deployment of [L2ProxyAdmin](https://explorer.zircuit.com/address/0x4200000000000000000000000000000000000018#code): transaction [0x48aa8d6a9d281bf0eaa204e895acdfe0ba38640c34f6d133b2f4ecb879f5c72c](https://explorer.zircuit.com/tx/0x48aa8d6a9d281bf0eaa204e895acdfe0ba38640c34f6d133b2f4ecb879f5c72c), implementations: [0x893c2CEEb71D38514daF67728d3Ff1b213FC4B5F](https://explorer.zircuit.com/address/0x893c2CEEb71D38514daF67728d3Ff1b213FC4B5F#code) Administration contract for the L2 predeploy proxies. Adds upgradePredeploys(address), which can only be called by the system depositor account and delegatecalls an L2ContractsManager to upgrade every predeploy in a single network upgrade transaction. - Roles: - **admin**: L2ProxyAdmin; ultimately EOA 3 - **owner**: EOA 3 Can be upgraded by: EOA 3 with no delay **References** - [Source Code](https://github.com/ethereum-optimism/optimism/blob/op-contracts/v7.0.0/packages/contracts-bedrock/src/L2/L2ProxyAdmin.sol) The current deployment carries some associated risks: - Funds can be stolen if a contract receives a malicious code upgrade. There is no delay on code upgrades (CRITICAL).