navbar-version-selector.html

<a data-proofer-ignore class="nav-link dropdown-toggle" href="#" id="navbarDropdown" role="button" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
	{{ .Site.Params.version_menu }}
</a>
<div class="dropdown-menu" aria-labelledby="navbarDropdownMenuLink">
  {{ range sort .Site.Pages ".File.ContentBaseName" "desc" -}}
    {{ if (findRE "docs" .File.ContentBaseName) -}}
      {{ $versionFile :=  printf "%s%s" .File.Dir "/version"  -}}
      {{ if fileExists $versionFile -}}
        <a class="dropdown-item" href="{{ .RelPermalink }}">
          {{readFile ( $versionFile )}}
          {{- if eq .File.ContentBaseName "docs" -}}
            &nbsp;(latest)
          {{- end -}}
        </a>
      {{ end -}}
    {{ end -}}
  {{ end -}}
  {{ $path := "" }}
  {{ if .Site.Params.version_menu_pagelinks }}
    {{ $path = .Page.RelPermalink }}
  {{ end }}
  {{ range .Site.Params.versions }}
    <a class="dropdown-item" href="{{ .url }}{{ $path }}">{{ .version }}</a>
  {{ end }}
</div>