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--- a/website/release-1.17.html
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@@ -55,6 +55,9 @@
           release 1.15 or older.</li>
       </ul>
 
+      <p>1.17.1 was released only for a small function needed for
+        supporting the Unity Lens. If you don't need it, you can stay
+        with 1.17.0.</p>
 
       <h2>Notes to the kind packagers:</h2>