<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/62742>62742</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            [feature] Provide a Version Switcher for Online Documentation.
        </td>
    </tr>

    <tr>
      <th>Labels</th>
      <td>
            new issue
      </td>
    </tr>

    <tr>
      <th>Assignees</th>
      <td>
      </td>
    </tr>

    <tr>
      <th>Reporter</th>
      <td>
          hwhsu1231
      </td>
    </tr>
</table>

<pre>
    ### Feature Request

Take [CMake Documentation](https://cmake.org/cmake/help/latest/) for reference. There is a Version Switcher displayed in its Navigation Bar, which is quite convenient. I wondered why not [LLVM](https://llvm.org/docs/) and its related tools provide this wonderful widget for their Online Documentation?

### Screenshots



</pre>
<img width="1px" height="1px" alt="" src="http://email.email.llvm.org/o/eJyUU09vozoQ_zTmMgoyBkw4cGgaIT2pfe9pW_Vu7AF769ipbYL67VfQVO2uclkJwUiMZ37_LGI0k0PsSH0g9TETc9I-dHrRcS5YWWSDV-8dYeXHAz2KNAeEH_g2Y0yEHgm9-3g_i1cEUh_uH9fi6OV8QpdEMt6R-kjYXqd0jqS8I6wnrJcn8Yq5D9NnTViv0Z4J661I6-y1rYXRBwg4YkAnMYdnjQHBRBDwgiEa7-BpMUlqDKBMPFvxjgqMA5Mi_CsuZtoQwEEEwu5h0Ubq9fjbbBKC9O6CzqBLOfwDi3cKAypY9Ds4n1Y2Dw8vj7fgW3s5XdErL-MVrHBqWxxw5aAgeW8jnIO_GIWQtInXJeNsYTFqwrQRTBpNgP-cNe5P6cr-u8hfTjzJgOii9in-3lCQ-mBOYsJbsCeT9Dzk0p-uHK6f3Tn4nyhX0UWMmFZCTVGVe140hPXlKEdGWblrmrLdVdjSXdsOYlewkRac06qqBsLa70Ay1ZWqLVuRYVfwfcXqPedFpjveNLLhpZCsqgchqJBK4L4qhGSUjoxnpltX0brgRVM2VZGrljPKJdK6HUoxCFJRPAlj808TMhPjjB1nTcUyKwa0cQs0Yw4X2H4SxtZ8h25jO8xTJBW1Jqb4NSWZZLebMH6knNRH-P_q3Y24rcbdsizP5mC7v9Z9g7nqvtH4FQAA____6yO1">