diff --git a/ChangeLog b/ChangeLog
index d46ecf6bc4..5454f12f79 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Sat Nov  3 11:01:32 2012  Narihiro Nakamura  <authornari@gmail.com>
+
+	* NEWS: add a news about rb_newobj_of() and NEWOBJ_OF().
+
 Sat Nov  3 10:17:41 2012  Narihiro Nakamura  <authornari@gmail.com>
 
 	* eval.c (f_current_dirname): add the new method for Kernel.
diff --git a/NEWS b/NEWS
index 2f7f5d98ad..b358042344 100644
--- a/NEWS
+++ b/NEWS
@@ -12,6 +12,7 @@ with all sufficient information, see the ChangeLog file.
 
 === C API updates
 * NUM2SHORT() and NUM2USHORT() added. They are similar to NUM2INT, but short.
+* rb_newobj_of() and NEWOBJ_OF() added. They create a new object of a given class.
 
 === Library updates (outstanding ones only)