update ec release notes

Author: diamonwiggins

docs/release-notes/rn-embedded-cluster.md

@@ -12,6 +12,32 @@ Additionally, these release notes list the versions of Kubernetes and Replicated
 
 <!--RELEASE_NOTES_PLACEHOLDER-->
 
+## 2.11.1
+
+Released on September 8, 2025
+
+<table>
+  <tr>
+    <th>Version</th>
+    <td id="center">2.11.1+k8s-1.33</td>
+    <td id="center">2.11.1+k8s-1.32</td>
+    <td id="center">2.11.1+k8s-1.31</td>
+  </tr>
+  <tr>
+    <th>Kubernetes Version</th>
+    <td id="center">1.33.4</td>
+    <td id="center">1.32.8</td>
+    <td id="center">1.31.12</td>
+  </tr>
+  <tr>
+    <th>KOTS Version</th>
+    <td id="center">1.127.2</td>
+  </tr>
+</table>
+
+### Bug Fixes {#bug-fixes-2-11-1}
+* Fixes SeaweedFS high availability upgrades failing when upgrading from embedded-cluster versions prior to 2.7.3. The upgrade process now properly handles StatefulSet scaling from single-node to HA mode without quorum configuration conflicts.
+
 ## 2.11.0
 
 Released on August 28, 2025