Upgrade 17: Jovian - Overview

This upgrade introduces several key improvements to enhance network performance and security.

Scope

• Configurable Minimum Basefee: Allows chain operators to specify a minimum base fee to shorten the length of prioritt fee auctions.
  • Spec: https://github.com/ethereum-optimism/specs/pull/747
  • Design doc: https://github.com/ethereum-optimism/design-docs/blob/main/protocol/minimum-base-fee.md
• Calldata footprint limit: adds an in-protocol limit to calldata to prevent DA spam and prevent priority fee auctions.
  • Spec: https://github.com/ethereum-optimism/specs/pull/748
  • Design doc: https://github.com/ethereum-optimism/design-docs/pull/317
• Kona Proof support
  • Adds support for Kona proofs as a fallback proof mechanism.

Timeline

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Timelines are subject to change. Official release dates will be posted by our developer support team.

</aside>

We currently expect Upgrade 17 to ship in late October to mid November.

Affected Users

• This upgrade is a hardfork. Chain operators should prepare for this upgrade by reviewing the technical documentation.

Resources

For technical questions or support during this upgrade, please contact our developer support team.