--- a/docs/trunk/oodguide/en-US/oodguide.ent
+++ b/docs/trunk/oodguide/en-US/oodguide.ent
@@ -2,5 +2,5 @@
 <!ENTITY BOOKID "oodguide">
 <!ENTITY YEAR "2005-2012">
 <!ENTITY HOLDER "Rexx Language Association. All rights reserved.">
-<!ENTITY VERSION "4.2">
+<!ENTITY VERSION "4.2.1">
 <!ENTITY EDITION "1">