diff --git a/website/content/docs/release-notes/v0_18_0.mdx b/website/content/docs/release-notes/v0_18_0.mdx
index 2aa389c90a..20f084b0c0 100644
--- a/website/content/docs/release-notes/v0_18_0.mdx
+++ b/website/content/docs/release-notes/v0_18_0.mdx
@@ -168,5 +168,23 @@ description: |-
     </td>
   </tr>
 
+  <tr>
+    <td style={{verticalAlign: 'middle'}}>
+    0.18.0 (Fixed in 0.18.1)
+    </td>
+    <td style={{verticalAlign: 'middle'}}>
+    Users are incorrectly removed from managed groups
+    </td>
+    <td style={{verticalAlign: 'middle'}}>
+    If your organization has over 10,000 managed groups, Boundary may incorrectly remove users from the managed group memberships.
+    <br /><br />
+    In version 0.18.0 and earlier, there was a maximum number of managed groups supported for an auth method. If you had over 10,000 managed groups, Boundary may have incorrectly removed a user from a group during authentication. This issue is fixed in version 0.18.1. There is no longer a maximum number of managed groups.
+    <br /><br />
+    Learn more:&nbsp; <a href="/boundary/docs/concepts/domain-model/managed-groups">Managed groups</a>
+    <br /><br />
+    <a href="/boundary/tutorials/self-managed-deployment/upgrade-version">Upgrade to the latest version of Boundary</a>
+    </td>
+  </tr>
+
   </tbody>
 </table>
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