diff --git a/src/main/docgen/book.xml b/src/main/docgen/book.xml
index 4b5ce9e..057a04b 100644
--- a/src/main/docgen/book.xml
+++ b/src/main/docgen/book.xml
@@ -1242,6 +1242,16 @@
           Apache License, Version 2.0. In 2015-09-02, the main code base was
           imported from GitHub into the Apache Software Foundation
           infrastructure, where development continues.</para>
+
+          <para><emphasis>Disclaimer: Apache FreeMarker is an effort
+          undergoing incubation at The Apache Software Foundation (ASF).
+          Incubation is required of all newly accepted projects until a
+          further review indicates that the infrastructure, communications,
+          and decision making process have stabilized in a manner consistent
+          with other successful ASF projects. While incubation status is not
+          necessarily a reflection of the completeness or stability of the
+          code, it does indicate that the project has yet to be fully endorsed
+          by the ASF.</emphasis></para>
         </listitem>
       </itemizedlist>
     </section>