The Jovian Hardfork for Katana (Mainnet) is scheduled for activation on: Mon Mar 09 2026 14:30:01 UTC.

This upgrade brings several improvements to the way rollup fees are calculated. Refer to the Upgrade 17 Notice for full change log.

Required Actions:
No action required if you don't run external nodes.
If you or your partners run an external node, you need to:

• Add the following parameters to

  • op-node: --override.jovian=1773066601

  • op-geth: --override.jovian=1773066601

Make sure your infrastructure is configured with these flags before timing shared above.

Nodes that are not configured correctly will stop syncing after activation.

Questions?
If you have any questions, feel free to contact Conduit Support through your usual channels or at support@conduit.xyz.