diff --git a/ChangeLog b/ChangeLog
index f06e6aab0c..30ae55d9d3 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,16 @@
+Mon Mar  9 21:52:41 2015  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* lib/uri/generic.rb (URI::Generic.build):
+	  use hostname= to detect and wrap IPv6 hosts.
+	  Build is accepting URI components and users may not expect
+	  that a host component needs to be wrapped with square brackets
+	  since it's not providing a URI.
+	  Note: initialize with arg_check => true does not wrap IPv6 hosts.
+	  by Joe Rafaniello <jrafanie@redhat.com>
+	  https://github.com/ruby/ruby/pull/765 fix GH-765
+
+	* test/uri/test_generic.rb: Add more tests
+
 Tue Mar  3 02:42:27 2015  Eric Wong  <e@80x24.org>
 
 	* ext/io/wait/wait.c (io_nread): wrap return value with INT2FIX
diff --git a/lib/uri/generic.rb b/lib/uri/generic.rb
index 88c96fe90a..d7a55dcbd8 100644
--- a/lib/uri/generic.rb
+++ b/lib/uri/generic.rb
@@ -192,7 +192,7 @@ module URI
       if arg_check
         self.scheme = scheme
         self.userinfo = userinfo
-        self.host = host
+        self.hostname = host
         self.port = port
         self.path = path
         self.query = query
diff --git a/test/uri/test_generic.rb b/test/uri/test_generic.rb
index b5b1fc1c26..c9e3576a80 100644
--- a/test/uri/test_generic.rb
+++ b/test/uri/test_generic.rb
@@ -741,12 +741,26 @@ class URI::TestGeneric < Test::Unit::TestCase
   end
 
   def test_build
-    URI::Generic.build(['http', nil, 'example.com', 80, nil, '/foo', nil, nil, nil])
+    u = URI::Generic.build(['http', nil, 'example.com', 80, nil, '/foo', nil, nil, nil])
+    assert_equal('http://example.com:80/foo', u.to_s)
+
+    u = URI::Generic.build(:scheme => "http", :host => "::1", :path => "/bar/baz")
+    assert_equal("http://[::1]/bar/baz", u.to_s)
+    assert_equal("[::1]", u.host)
+    assert_equal("::1", u.hostname)
+
+    u = URI::Generic.build(:scheme => "http", :host => "[::1]", :path => "/bar/baz")
+    assert_equal("http://[::1]/bar/baz", u.to_s)
+    assert_equal("[::1]", u.host)
+    assert_equal("::1", u.hostname)
   end
 
   def test_build2
-    URI::Generic.build2(path: "/foo bar/baz")
-    URI::Generic.build2(['http', nil, 'example.com', 80, nil, '/foo bar' , nil, nil, nil])
+    u = URI::Generic.build2(path: "/foo bar/baz")
+    assert_equal('/foo%20bar/baz', u.to_s)
+
+    u = URI::Generic.build2(['http', nil, 'example.com', 80, nil, '/foo bar' , nil, nil, nil])
+    assert_equal('http://example.com:80/foo%20bar', u.to_s)
   end
 
   # 192.0.2.0/24 is TEST-NET.  [RFC3330]
diff --git a/version.h b/version.h
index 83954470ca..d9600bb35b 100644
--- a/version.h
+++ b/version.h
@@ -1,10 +1,10 @@
 #define RUBY_VERSION "2.1.5"
-#define RUBY_RELEASE_DATE "2015-03-03"
-#define RUBY_PATCHLEVEL 306
+#define RUBY_RELEASE_DATE "2015-03-09"
+#define RUBY_PATCHLEVEL 307
 
 #define RUBY_RELEASE_YEAR 2015
 #define RUBY_RELEASE_MONTH 3
-#define RUBY_RELEASE_DAY 3
+#define RUBY_RELEASE_DAY 9
 
 #include "ruby/version.h"