diff --git a/documentation/ref-manual/ref-classes.xml b/documentation/ref-manual/ref-classes.xml
index 8730f01a67..5f4a814f9c 100644
--- a/documentation/ref-manual/ref-classes.xml
+++ b/documentation/ref-manual/ref-classes.xml
@@ -2793,7 +2793,7 @@
         scanning, generation of SPDX standard output, and verification
         of license information during the build.
         <note>
-            This class is currently at the prototype stage in the 1.5
+            This class is currently at the prototype stage in the 1.6
             release.
         </note>
     </para>