The Pectra upgrade on testnet is now back and running 
Please note: We had to update the documentation after launch yesterday, so make sure you’re following the latest version of the guide to upgrade successfully.
Updated instructions: https://docs.linea.build/get-started/how-to/run-a-node/beta-v4-migration
Things to look out for:
-
Genesis has been updated with a new validator set.,
-
If Maru was started previously, it needs to be cleaned.,
-
It’s recommended to disable the finalization updater for now.,
Reminder: The same upgrade dates still apply:- Paris: now!
- Shanghai: Sept 29, 2025
- Cancun: Sept 30, 2025
- Prague: Coming soon
As always, we’re here to help if you run into any questions!