JAL-2759 release notes for 2.10.4

diff --git a/help/html/releases.html b/help/html/releases.html
index 6f15361..68cd198 100755 (executable)
--- a/help/html/releases.html
+++ b/help/html/releases.html
@@ -81,6 +81,9 @@ li:before {
             <li>
             <!-- JAL-2885 -->Jalview uses HTTPS for Uniprot, Xfam and Ensembl services 
             </li>
+            <li>
+            <!-- JAL-2759 -->Improved performance for large alignments and lots of hidden columns
+            </li>
           </ul>
           </div>
       </td>