docs/includes/error-404-deprecation-message.html

{% if enterpriseServerReleases.deprecated contains currentVersion %}
{% assign deprecatedDate = enterpriseServerReleases.dates[currentVersion].deprecationDate %}
  <div class="deprecation-banner border rounded-1 mb-2 color-bg-warning p-3 color-border-warning f5">
    <p>
      <b>
        {% data reusables.enterprise_deprecation.version_was_deprecated %}
        <span data-date="{{ deprecatedDate }}" data-format="%B %d, %Y" title="{{ deprecatedDate }}">{{ deprecatedDate }}</span>.
      </b>
      The documentation page you are looking for may have moved. Try going to the <a href="/{{ currentLanguage }}/enterprise/{{ currentVersion}}">GitHub Enterprise Server {{ currentVersion }} documentation homepage</a> or searching by keyword.
    </p>
  </div>
{% endif %}