This proposal seeks approval to activate Upgrade 17 (The Jovian Hardfork) on Metal L2, aligning the network with the latest OP Stack release. This upgrade improves performance, strengthens DA protections, and updates fee configuration logic.

Reference: https://docs.optimism.io/notices/upgrade-17

Activation

• Metal Sepolia: activates at block 1763568001 on 19 Nov 2025 at 16:00:01 UTC
  
  

• Metal Mainnet: activates at block 1764691201 on 2 Dec 2025 at 16:00:01 UTC

Key Changes

Full details in the OP Labs notice. Highlights include:

• Cannon Go 1.24 support (fault-proof VM update)
  
  

• Configurable Minimum Base Fee (disabled by default)
  
  

• DA Footprint Block Limit to prevent DA spam (enabled by default)
  
  

• Operator Fee Fix for improved fee configuration and future gas token flexibility
  
  

Breaking Changes

Node operators must upgrade before activation.
Important modifications include:

• Updated block header fields (extraData and potential non-zero blobGasUsed)
  
  

• Fee scalar adjustments required for operators using non-zero scalars
  
  

Failure to update will result in node desynchronization.

Date Change Policy

If OP Labs updates the official activation schedule for Upgrade 17, Metal L2 will follow those updated dates to remain aligned with the Superchain.

Rationale

Adopting Upgrade 17 ensures Metal L2 stays aligned with the Superchain roadmap, maintains compatibility with the OP Stack, and continues providing a secure, stable environment for institutional and DeFi builders.

Voting Options

• YES - Approve Upgrade 17
  
  

• NO - Reject the upgrade
  
  

• ABSTAIN - No preference