" align="center">Clang 6</td>
    </tr>
    <tr>
      <td>Allow <i>lambda-capture</i> <tt>[=, this]</tt></td>
      <td><a href="https://wg21.link/p0409r2">P0409R2</a></td>
      <td class="full" align="center">Clang 6</td>
    </tr>
    <tr>
      <td rowspan="2"><tt>__VA_OPT__</tt> for preprocessor comma elision</td>
      <td><a href="https://wg21.link/p0306r4">P0306R4</a></td>
      <td class="full" align="center">Clang 6</td>
    </tr>
      <tr> <!-- from Rapperswil -->
        <td><a href="https://w