minor updates

Author: sbvegan

pages/notices/_meta.json

@@ -1,6 +1,6 @@
 {
-  "upgrade-13": "Upgrade 13: OPCM and incident response improvements",
   "upgrade-14": "Upgrade 14: MT-Cannon and Isthmus L1 Contracts",
+  "upgrade-13": "Upgrade 13: OPCM and incident response improvements",
   "blob-fee-bug": "Superchain testnets' blob fee bug",
   "pectra-changes": "Preparing for Pectra breaking changes",
   "holocene-changes": "Preparing for Holocene breaking changes",

pages/notices/upgrade-14.mdx

@@ -20,12 +20,10 @@ import { Steps, Callout } from 'nextra/components'
 # Upgrade 14: MT-Cannon and Isthmus L1 Contracts
 
 <Callout type="info">
-  Upgrade execution timelines are being publicly tracked in this [release management project board](https://github.com/orgs/ethereum-optimism/projects/117/views/12).
+  Upgrade execution timelines are being publicly tracked in this [release management project board](https://github.com/orgs/ethereum-optimism/projects/117/views/12) and are subject to change. Here are the following expected timelines:
 
-  *   OP Sepolia, Ink Sepolia, and Minato Sepolia upgrades have already been executed.
+  *   OP Sepolia, Ink Sepolia, and Minato Sepolia upgrades are targeting **April 2nd, 2025**.
   *   OP Mainnet, Soneium Mainnet, Ink Mainnet are expected to execute Upgrade 14 on **April 25th, 2025**.
-  *   Base Mainnet is executing its upgrade on **April 25th, 2025**.
-  *   Unichain Mainnet is executing its upgrade on **April 25th, 2025**.
   *   Other Optimism governed chains' upgrades will be tracked in the release management project board.
 </Callout>
 
@@ -35,12 +33,10 @@ If you experience difficulty at any stage of this process, please reach out to d
 
 ## What's included in Upgrade 14
 
-Upgrade 14 contains four main components:
+Upgrade 14 contains two main components:
 
 *   **MT-Cannon**: An upgrade to the fault proof VM that supports the MIPS-64 instruction set and multi-threaded programs, removing memory constraints for the fault proof program.
-*   **L2 Withdrawals Root in Block Header**: A change making it easier for chain operators to guarantee the security of fault proofs for chains in the Superchain as the number of chains scales.
 *   **Operator Fee**: Introduction of the first phase of a mechanism addressing challenges in accurately pricing user fees when chains employ ZK proving, alt-DA, and custom gas tokens.
-*   **L2 Pectra Support**: Support for Ethereum's Pectra hard fork features including BLS12-381 precompiles, historical block hashes on-chain, and set-code transactions (EIP-7702).
 
 ## Technical details
 
@@ -64,17 +60,6 @@ Key changes:
 
 After this upgrade, the on-chain implementation of the fault proof VM will be [MIPS64.sol](https://github.com/ethereum-optimism/optimism/blob/develop/packages/contracts-bedrock/src/cannon/MIPS64.sol) instead of [MIPS.sol](https://github.com/ethereum-optimism/optimism/blob/develop/packages/contracts-bedrock/src/cannon/MIPS.sol).
 
-### L2 Withdrawals Root in Block Header
-
-This component makes changes to:
-
-*   Add the storage root of the `L2ToL1MessagePasser` contract to the `ExecutionPayload`
-*   Add a new p2p gossip topic (`v4`) for Isthmus blocks
-*   Update the SSZ encoding & gossip to account for withdrawalsRoot
-*   Use the Isthmus timestamp activations
-
-These changes make it easier for chain operators to guarantee the security of fault proofs as the Superchain scales.
-
 ### Operator Fee
 
 This introduces two new rollup operator configured scalars:
@@ -92,34 +77,13 @@ totalFee = operatorFee + gasUsed * (baseFee + priorityFee) + l1Fee
 
 The scalars will be updated via the SystemConfig L1 contract. A new fee vault, the OperatorFeeVault, will store the operator fee. While this feature is included in the upgrade, it is disabled by default and will be enabled in a future hardfork.
 
-### L2 Pectra Support
-
-This component prepares for Ethereum's Pectra upgrade by including support for several EIPs:
-
-*   **EIP-7702**: Set code transaction
-    *   Added authorization list to span batch format
-*   **EIP-2537**: BLS12-381 precompiles
-    *   Added input limits and specified acceleration
-*   **EIP-2935**: Block hashes contract predeploy
-    *   Added network upgrade transaction
-*   **EIP-7251**: Increase the MAX\_EFFECTIVE\_BALANCE
-    *   Only affects execution clients
-*   **EIP-7623**: Increase calldata cost
-    *   Only affects execution clients
-*   **EIP-7002**: Execution layer triggerable withdrawals
-    *   Not applicable to OP Stack
-*   **EIP-6110**: Supply validator deposits on chain
-    *   Not applicable to OP Stack
-*   **EIP-7685**: General purpose execution layer requests
-    *   No requests currently applicable to OP Stack
-
 ### Absolute Prestate
 
 Beginning with this upgrade, op-program absolute prestates will now use the "cannon64" variant. This upgrade includes [the absolute prestate for op-program 1.5.1-rc.1, which is `0x03ee2917da962ec266b091f4b62121dc9682bb0db534633707325339f99ee405`](https://github.com/ethereum-optimism/superchain-registry/blob/main/validation/standard/standard-prestates.toml).
 
 ## For chain operators
 
-If this proposal is accepted, multisig ceremonies will be coordinated to execute upgrade transactions. The following transactions will be executed on the respective chains: `OP Mainnet`, `Soneium Mainnet`, `Ink Mainnet`, `Base Mainnet`, and `Unichain Mainnet`. If your Optimism governed chain is not in this list, please reach out to OP Labs Solutions Engineering to coordinate your upgrade.
+If this proposal is accepted, multisig ceremonies will be coordinated to execute upgrade transactions. The following transactions will be executed on the respective chains: `OP Mainnet`, `Soneium Mainnet`, `Ink Mainnet`, `Base Mainnet`, `Unichain Mainnet`, `Mode Mainnet`, `Zora Mainnet`, `Arena Z Mainnet`, `Swell Mainnet`, and `Metal Mainnet`. Depending on the current state of the chain the execution times will vary. If your Optimism governed chain is not in this list, please reach out to OP Labs Solutions Engineering to coordinate your upgrade.
 
 For chain operators running fault-proof infrastructure, ensure you are running up-to-date versions of the following:
 
@@ -132,18 +96,12 @@ Node operators should ensure they are running an up-to-date version of op-node t
 
 *   op-node: `op-node/v1.12.2`
 
-## For bridges and users
-
-<Callout type="warning">
-  All withdrawals that are not finalized before the upgrade executes will need to be reproven after the upgrade is complete. You may want to consider waiting until after the upgrade is complete to begin a withdrawal during this 7-day window.
-</Callout>
-
 ## Audit reports
 
 The code for Upgrade 14 has undergone multiple audits:
 
-*   **Spearbit**: Completed an audit of MT-Cannon. Details available [here](#).
-*   **Coinbase Protocol Security**: Completed an audit of MT-Cannon. Details available [here](#).
+*   **Spearbit**: Completed an audit of MT-Cannon. Details available [here](https://github.com/ethereum-optimism/optimism/blob/develop/docs/security-reviews/2025_01-MT-Cannon-Spearbit.pdf).
+*   **Coinbase Protocol Security**: Completed an audit of MT-Cannon. Details available [here](https://github.com/ethereum-optimism/optimism/blob/develop/docs/security-reviews/2025_01-MT-Cannon-Base.pdf).
 
 ## Emergency cancellation