gn="center">No</td>
 </tr>
 <tr>
  <td>User-generated <tt>static_assert</tt> messages</td>
  <td><a href="https://wg21.link/P2741R3">P2741R3</a></td>
  <td class="full" align="center">Clang 17</td>
 </tr>
 <tr>
  <td>Placeholder variables with no name</td>
  <td><a href="https://wg21.link/P2169R4">P2169R4</a></td>
  <td class="full" align="center">Clang 18</td>
 </tr>
 <!-- Fall 2023 papers (Kona) -->
 <tr>
  <td>Template parameter initialization</td>
  <td><a href="https://wg21.link/P2308R1">P2308R1</a> (<