## Run a development version

If you want to stay on the bleeding-edge Home Assistant Core development branch, you can upgrade to `dev`.

<div class='note warning'>

  The `dev` branch is likely to be unstable. Potential consequences include loss of data and instance corruption.

</div>

{% if page.installation == "os" or page.installation == "supervised" %}

1. Join the dev channel

    ```bash
    ha supervisor options --channel dev
    ```

2. Reload the supervisor

    ```bash
    ha supervisor reload
    ```

3. Update Home Assistant core to the latest dev version

    ```bash
    ha core update
    ```

{% elsif page.installation == "container" %}

```bash
docker pull {{ site.installation.container }}:dev
```

**[You then need to recreate the container with the new image.](/installation/linux#install-home-assistant-container)**

{% elsif page.installation == "core" %}

1. Stop the Home Assistant service.

2. Switch to the user that is running Home Assistant

    ```bash
    sudo -u homeassistant -H -s
    ```

3. Activate the virtual environment that Home Assistant is running in

    ```bash
    source /srv/homeassistant/bin/activate
    ```

4. Download and install the version you want

    ```bash
    pip3 install --upgrade git+https://github.com/home-assistant/core.git@dev
    ```

5. When that is complete start the service again for it to use the new files.

{% endif %}