Updated release date (now that it's known). Added "incubating" to the version title, and its explanation.
diff --git a/src/manual/en_US/book.xml b/src/manual/en_US/book.xml
index e3d86c5..57fd39a 100644
--- a/src/manual/en_US/book.xml
+++ b/src/manual/en_US/book.xml
@@ -26490,9 +26490,14 @@
       <title>Version history</title>
 
       <section xml:id="versions_2_3_24">
-        <title>2.3.24</title>
+        <title>2.3.24 (incubating)</title>
 
-        <para>Release date: 2016-03-20 + release process delay</para>
+        <para>Release date: 2016-03-28</para>
+
+        <para>This is a sable, final release. The <quote>incubating</quote>
+        suffix is required by the Apache Software Foundation until the project
+        becomes a fully accepted (graduated) Apache project. See disclaimer
+        below.</para>
 
         <section>
           <title>Legal changes</title>