diff --git a/NEWS b/NEWS
index bb6b07cdf..1c21cf408 100644
--- a/NEWS
+++ b/NEWS
@@ -84,6 +84,11 @@ micro version number.
 
 In addition, ./GUILE-VERSION now defines GUILE_MICRO_VERSION.
 
+** New preprocessor definitions are available for checking versions.
+
+version.h now #defines SCM_MAJOR_VERSION, SCM_MINOR_VERSION, and
+SCM_MICRO_VERSION to the appropriate integer values.
+
 ** Guile now actively warns about deprecated features.
 
 The new configure option `--enable-deprecated=LEVEL' and the
diff --git a/libguile/ChangeLog b/libguile/ChangeLog
index b88a6ee4d..08e71ec0b 100644
--- a/libguile/ChangeLog
+++ b/libguile/ChangeLog
@@ -1,3 +1,17 @@
+2001-11-18  Rob Browning  <rlb@defaultvalue.org>
+
+	* version.c
+	(s_scm_major_version): use SCM_MAJOR_VERSION.
+	(s_scm_minor_version): use SCM_MINOR_VERSION.
+	(s_scm_micro_version): use SCM_MICRO_VERSION.
+	(s_scm_version): use SCM_MAJOR_VERSION, SCM_MINOR_VERSION, and
+	SCM_MICRO_VERSION.
+
+	* version.h.in
+	(SCM_MAJOR_VERSION): renamed from SCM_GUILE_MAJOR_VERSION.
+	(SCM_MINOR_VERSION): renamed from SCM_GUILE_MINOR_VERSION.
+	(SCM_MICRO_VERSION): renamed from SCM_GUILE_MICRO_VERSION.
+
 2001-11-18  Neil Jerram  <neil@ossau.uklinux.net>
 
 	* vectors.c (scm_vector_move_left_x, scm_vector_move_right_x):