diff --git a/Makefile b/Makefile
index 86c7905..7458a7b 100644
--- a/Makefile
+++ b/Makefile
@@ -1,4 +1,4 @@
-VERSION="Axiom (May 2007)"
+VERSION="Axiom (Sept 2007)"
 SPD=$(shell pwd)
 SYS=$(notdir $(AXIOM))
 SPAD=${SPD}/mnt/${SYS}
diff --git a/Makefile.pamphlet b/Makefile.pamphlet
index 2109665..af8ef5f 100644
--- a/Makefile.pamphlet
+++ b/Makefile.pamphlet
@@ -292,7 +292,7 @@ The DOCUMENT variable is now set to replace the direct call
 to the document command. This will allow it to be
 changed on the command line.
 <<environment>>=
-VERSION="Axiom (May 2007)"
+VERSION="Axiom (Sept 2007)"
 SPD=$(shell pwd)
 SYS=$(notdir $(AXIOM))
 SPAD=${SPD}/mnt/${SYS}
diff --git a/changelog b/changelog
index 1aaaa04..edb5476 100644
--- a/changelog
+++ b/changelog
@@ -1,3 +1,6 @@
+20070826 tpd --patch-51 (Sept 2007) release
+20070826 tpd Makefile.pamphlet update version to Sept 2007
+20070826 tpd Makefile update version to Sept 2007
 20070826 tpd src/doc/spadhelp add Expression
 20070826 tpd src/algebra/Makefile add Expression.help 
 20070826 tpd src/algebra/expr.spad add Expression.help