zephyr/doc/_templates/zversions.html

{# Add rst-badge after rst-versions for small badge style. #}
  <div class="rst-versions" data-toggle="rst-versions" role="note" aria-label="versions">
    <span class="rst-current-version" data-toggle="rst-current-version">
      <span class="fa fa-book"> Zephyr Project</span>
      v: latest
      <span class="fa fa-caret-down"></span>
    </span>
    <div class="rst-other-versions">
      <dl>
        <dt>{{ _('Document Release Versions') }}</dt>
        {% for slug, url in versions %}
          <dd><a href="{{ url }}">{{ slug }}</a></dd>
        {% endfor %}
      </dl>
      <dl>
        <dt>{{ _('Downloads') }}</dt>
        {% set prefix = current_version if is_release else "latest" %}
        <dd><a href="/{{ prefix }}/zephyr.pdf">PDF</a></dd>
      </dl>
      <dl>
        <dt>{{ _('zephyrproject.org Links') }}</dt>
          <dd>
            <a href="https://www.zephyrproject.org/">Project Home</a>
          </dd>
          <dd>
            <a href="https://github.com/zephyrproject-rtos/sdk-ng/releases">SDK</a>
          </dd>
          <dd>
            <a href="https://github.com/zephyrproject-rtos/zephyr/releases">Releases</a>
          </dd>
      </dl>
    </div>
  </div>