Update version number here as well; patchlevel.h is not the only place.
diff --git a/configure.in b/configure.in
index 3c86fde..ade42cf 100644
--- a/configure.in
+++ b/configure.in
@@ -1,7 +1,7 @@
 dnl Process this file with autoconf 2.0 or later to make a configure script.
 
 # Set VERSION so we only need to edit in one place (i.e., here)
-m4_define(PYTHON_VERSION, 2.3)
+m4_define(PYTHON_VERSION, 2.4)
 
 AC_REVISION($Revision$)
 AC_PREREQ(2.53)