diff --git a/ChangeLog b/ChangeLog
index a3f20ef863..9f90111d42 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Tue Apr 28 15:27:58 1998  Yukihiro Matsumoto  <matz@netlab.co.jp>
+
+	* experimental release 1.1b9_16.
+
 Tue Apr 28 00:07:38 1998  Yukihiro Matsumoto  <matz@netlab.co.jp>
 
 	* eval.c (obj_is_proc): type check predicate.
@@ -11,6 +15,10 @@ Mon Apr 27 16:59:17 1998  Yukihiro Matsumoto  <matz@netlab.co.jp>
 
 	* lib/tk.rb: use tcltklib#_invoke instead of `_eval'.
 
+Mon Apr 27 16:59:17 1998  Yukihiro Matsumoto  <matz@netlab.co.jp>
+
+	* array.c (ary_sort): use dup, not clone.
+
 Mon Apr 27 13:46:27 1998  Tadahiro Maebashi  <maebashi@iij.ad.jp>
 
 	* ext/tcltklib/tcltklib.c (ip_invoke): invoke tcl command
diff --git a/version.h b/version.h
index c19457a289..204a305e2a 100644
--- a/version.h
+++ b/version.h
@@ -1,2 +1,2 @@
-#define RUBY_VERSION "1.1b9_15"
-#define VERSION_DATE "98/04/24"
+#define RUBY_VERSION "1.1b9_16"
+#define VERSION_DATE "98/04/28"