diff --git a/ChangeLog b/ChangeLog
index 2fa67f5a02..f2e912a611 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Sat Jul 21 12:06:48 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/mkmf.rb (init_mkmf): should remove mkmf.log too.
+
 Sat Jul 21 01:45:03 2007  Tadayoshi Funaba  <tadf@dotrb.org>
 
 	* lib/date/format.rb (Date._parse): completes calendar week based year.
diff --git a/lib/mkmf.rb b/lib/mkmf.rb
index 529567a71d..0bc9f19293 100644
--- a/lib/mkmf.rb
+++ b/lib/mkmf.rb
@@ -1497,6 +1497,7 @@ def init_mkmf(config = CONFIG)
   $LOCAL_LIBS = ""
 
   $cleanfiles = config_string('CLEANFILES') {|s| Shellwords.shellwords(s)} || []
+  $cleanfiles << "mkmf.log"
   $distcleanfiles = config_string('DISTCLEANFILES') {|s| Shellwords.shellwords(s)} || []
 
   $extout ||= nil
diff --git a/version.h b/version.h
index 1c064064f3..b56c7d214a 100644
--- a/version.h
+++ b/version.h
@@ -1,7 +1,7 @@
 #define RUBY_VERSION "1.9.0"
-#define RUBY_RELEASE_DATE "2007-07-20"
+#define RUBY_RELEASE_DATE "2007-07-21"
 #define RUBY_VERSION_CODE 190
-#define RUBY_RELEASE_CODE 20070720
+#define RUBY_RELEASE_CODE 20070721
 #define RUBY_PATCHLEVEL 0
 
 #define RUBY_VERSION_MAJOR 1
@@ -9,7 +9,7 @@
 #define RUBY_VERSION_TEENY 0
 #define RUBY_RELEASE_YEAR 2007
 #define RUBY_RELEASE_MONTH 7
-#define RUBY_RELEASE_DAY 20
+#define RUBY_RELEASE_DAY 21
 
 #ifdef RUBY_EXTERN
 RUBY_EXTERN const char ruby_version[];