2 files changed, 4 insertions, 3 deletions
diff --git a/test/test_tmpdir.rb b/test/test_tmpdir.rb
index d05ffc934a..7cdf2bba3a 100644
--- a/test/test_tmpdir.rb
+++ b/test/test_tmpdir.rb
@@ -58,6 +58,7 @@ class TestTmpdir < Test::Unit::TestCase
   end
 
   TRAVERSAL_PATH = Array.new(Dir.pwd.split('/').count, '..').join('/') + Dir.pwd + '/'
+  TRAVERSAL_PATH.delete!(':') if /mswin|mingw/ =~ RUBY_PLATFORM
 
   def test_mktmpdir_traversal
     expect = Dir.glob(TRAVERSAL_PATH + '*').count
diff --git a/version.h b/version.h
index c1ea3f6f33..9a63e01338 100644
--- a/version.h
+++ b/version.h
@@ -1,10 +1,10 @@
 #define RUBY_VERSION "2.5.2"
-#define RUBY_RELEASE_DATE "2018-09-02"
-#define RUBY_PATCHLEVEL 89
+#define RUBY_RELEASE_DATE "2018-09-03"
+#define RUBY_PATCHLEVEL 90
 
 #define RUBY_RELEASE_YEAR 2018
 #define RUBY_RELEASE_MONTH 9
-#define RUBY_RELEASE_DAY 2
+#define RUBY_RELEASE_DAY 3
 
 #include "ruby/version.h"