Use Steam Update when Valheim releases a server update, when players get a version mismatch, or when you need to repair the dedicated-server files. Back up the world first if the server has active progress.
- Open your Valheim server in the control panel.
- Click Backup Server if you need a rollback point. For a fuller guide, use How to backup your Valheim server.
- Click Steam Update.
- Wait for the Steam update task to finish. Do not restart the server while the update is still running.
- Start or restart the server.
- Join the server and confirm the client no longer reports a version mismatch.
If you use Valheim Plus or another modded branch, check the mod page after updating because mods can need their own update before they work with the latest Valheim build.
After updating
Start the server and check that it reaches a joinable state before changing anything else. If the game uses mods or plugins, confirm those also load successfully after the update.
If the server does not start
Review the latest console or log output and undo the most recent mod, plugin, or config change first. If the update itself appears to be the issue, include the newest log lines when opening a support ticket.