diff --git a/ChangeLog b/ChangeLog
index 6d137eb006..8a397bc4a1 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,11 @@
+Fri Jul 20 09:50:40 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* bootstraptest/runner.rb (get_result_string): check $?.coredump?
+	  first.
+
+	* bootstraptest/runner.rb (cleanup_coredump, check_coredump): see
+	  stackdump file too.
+
 Thu Jul 19 19:24:14 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* eval_error.ci (get_backtrace): check the result more.
diff --git a/bootstraptest/runner.rb b/bootstraptest/runner.rb
index 0e9d9d8ce0..0dfcae4359 100644
--- a/bootstraptest/runner.rb
+++ b/bootstraptest/runner.rb
@@ -131,7 +131,11 @@ def get_result_string(src)
     File.open('bootstraptest.tmp.rb', 'w') {|f|
       f.puts "print(begin; #{src}; end)"
     }
-    `#{@ruby} bootstraptest.tmp.rb`
+    begin
+      `#{@ruby} -W0 bootstraptest.tmp.rb`
+    ensure
+      raise CoreDumpError, "core dumped" if $? and $?.coredump?
+    end
   else
     eval(src).to_s
   end
@@ -159,12 +163,14 @@ end
 def cleanup_coredump
   FileUtils.rm_f 'core'
   FileUtils.rm_f Dir.glob('core.*')
+  FileUtils.rm_f @ruby+'.stackdump' if @ruby
 end
 
 class CoreDumpError < StandardError; end
 
 def check_coredump
-  if File.file?('core') or not Dir.glob('core.*').empty?
+  if File.file?('core') or not Dir.glob('core.*').empty? or
+      (@ruby and File.exist?(@ruby+'.stackdump'))
     raise CoreDumpError, "core dumped"
   end
 end
diff --git a/version.h b/version.h
index 7ae28af2dc..1c064064f3 100644
--- a/version.h
+++ b/version.h
@@ -1,7 +1,7 @@
 #define RUBY_VERSION "1.9.0"
-#define RUBY_RELEASE_DATE "2007-07-19"
+#define RUBY_RELEASE_DATE "2007-07-20"
 #define RUBY_VERSION_CODE 190
-#define RUBY_RELEASE_CODE 20070719
+#define RUBY_RELEASE_CODE 20070720
 #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 19
+#define RUBY_RELEASE_DAY 20
 
 #ifdef RUBY_EXTERN
 RUBY_EXTERN const char ruby_version[];