Add 3.7.0 announcement.

Signed-off-by: Ilya Maximets <i.maximets@ovn.org>

Author: igsilya

_includes/side-widgets.html

@@ -4,6 +4,9 @@
   </div>
   <div class="widget-body">
     <ul>
+      <li>
+        <a href=https://mail.openvswitch.org/pipermail/ovs-announce/2026-February/000390.html>Feb 16 2026: Open vSwitch 3.7.0 is now Available!</a>
+      </li>
       <li>
         <a href=https://mail.openvswitch.org/pipermail/ovs-announce/2026-February/000389.html>Feb 11 2026: Open vSwitch 3.6.2, 3.5.3, 3.4.5 and 3.3.8 are available</a>
       </li>
@@ -76,9 +79,6 @@
       <li>
         <a href=https://mail.openvswitch.org/pipermail/ovs-announce/2023-April/000318.html>Apr 06 2023: [ADVISORY] CVE-2023-1668: Remote traffic denial of service via crafted packets with IP proto 0</a>
       </li>
-      <li>
-        <a href=https://mail.openvswitch.org/pipermail/ovs-announce/2023-April/000316.html>Apr 06 2023: Open vSwitch 3.1.1, 3.0.4, 2.17.6, 2.16.7, 2.15.8, 2.14.9 and 2.13.11 are available</a>
-      </li>
     </ul>
   </div>
 </div>