Use Steam Update when DayZ releases a server update or players see a version mismatch. Back up before updating a modded server because Workshop content, mission files, or economy changes may also need attention after the update.
- Open your DayZ server in the control panel.
- Click Backup Server first if the current setup matters.
- Click Steam Update.
- Wait for SteamCMD to validate and update the DayZ server files. The output should show progress and finish with a completion message.
- Restart the server.
- Check the logs if the server does not come online.
For modded servers, also check Steam Workshop (updates) after a game update so installed Workshop items are not left behind.
