diff --git a/ChangeLog b/ChangeLog
index 516718c5f5..e3a265d72d 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Mon Jul 19 05:46:09 2010  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* include/ruby/ruby.h (rb_data_type_t): add new feature macros.
+
 Sun Jul 18 21:20:11 2010  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* array.c (rb_ary_clear): no need to duplicate buffer just before
diff --git a/include/ruby/ruby.h b/include/ruby/ruby.h
index 4d8b06feb9..7fcbf33bda 100644
--- a/include/ruby/ruby.h
+++ b/include/ruby/ruby.h
@@ -758,6 +758,10 @@ struct rb_data_type_struct {
                           by a programmer who define the type. */
 };
 
+#define HAVE_TYPE_RB_DATA_TYPE_T 1
+#define HAVE_RB_DATA_TYPE_T_FUNCTION 1
+#define HAVE_RB_DATA_TYPE_T_PARENT 1
+
 struct RTypedData {
     struct RBasic basic;
     const rb_data_type_t *type;
diff --git a/version.h b/version.h
index 781941e0b3..2a5dc99781 100644
--- a/version.h
+++ b/version.h
@@ -1,5 +1,5 @@
 #define RUBY_VERSION "1.9.3"
-#define RUBY_RELEASE_DATE "2010-07-18"
+#define RUBY_RELEASE_DATE "2010-07-19"
 #define RUBY_PATCHLEVEL -1
 #define RUBY_BRANCH_NAME "trunk"
 
@@ -8,7 +8,7 @@
 #define RUBY_VERSION_TEENY 1
 #define RUBY_RELEASE_YEAR 2010
 #define RUBY_RELEASE_MONTH 7
-#define RUBY_RELEASE_DAY 18
+#define RUBY_RELEASE_DAY 19
 
 #include "ruby/version.h"