# How to Change the Version of Your Project Zomboid Server (/docs/project-zomboid/game-version)



import { Step, Steps } from 'fumadocs-ui/components/steps';

Switch Version / Beta Branch [#switch-version--beta-branch]

<Steps>
  <Step>
    Stop the server [#stop-the-server]

    In the [XGamingServer Panel](https://panel.xgamingserver.com), go to **Console** and stop the server.
  </Step>

  <Step>
    Change the beta branch [#change-the-beta-branch]

    Click **Startup** in the sidebar. Look for the beta branch field and set it to the desired branch:

    | Branch            | Description                   |
    | ----------------- | ----------------------------- |
    | (empty / default) | Latest stable release         |
    | `b41multiplayer`  | Build 41 multiplayer (legacy) |
    | `unstable`        | Latest unstable/beta builds   |
  </Step>

  <Step>
    Reinstall to apply [#reinstall-to-apply]

    On the **Dashboard**, click **Reinstall Server** to download the new version.
  </Step>

  <Step>
    Start the server [#start-the-server]

    Start from **Console**. All players must be on the matching game version to connect.
  </Step>
</Steps>

Important Notes [#important-notes]

* **B41 mods are NOT compatible with B42.** Switching versions may break installed mods
* **B42 requires more RAM** — plan for higher memory allocation
* **Back up your save** before switching versions. Saves may not be compatible across major version changes
* The dedicated server app ID is `380870`

Related Guides [#related-guides]

* [Server Configuration](/docs/project-zomboid/server-config)
* [Mod Setup](/docs/project-zomboid/mod-setup)