diff --git a/test/net/imap/test_imap.rb b/test/net/imap/test_imap.rb
index eba9bb242a..bc36f103e3 100644
--- a/test/net/imap/test_imap.rb
+++ b/test/net/imap/test_imap.rb
@@ -19,50 +19,60 @@ class IMAPTest < Test::Unit::TestCase
   end
 
   def test_imaps_unknown_ca
-    assert_raise(OpenSSL::SSL::SSLError) do
-      imaps_test do |port|
-        Net::IMAP.new("localhost",
-                      :port => port,
-                      :ssl => true)
+    if defined?(OpenSSL)
+      assert_raise(OpenSSL::SSL::SSLError) do
+        imaps_test do |port|
+          Net::IMAP.new("localhost",
+                        :port => port,
+                        :ssl => true)
+        end
       end
     end
   end
 
   def test_imaps_with_ca_file
-    assert_nothing_raised do
-      imaps_test do |port|
-        Net::IMAP.new("localhost",
-                      :port => port,
-                      :ssl => { :ca_file => CA_FILE })
+    if defined?(OpenSSL)
+      assert_nothing_raised do
+        imaps_test do |port|
+          Net::IMAP.new("localhost",
+                        :port => port,
+                        :ssl => { :ca_file => CA_FILE })
+        end
       end
     end
   end
 
   def test_imaps_verify_none
-    assert_nothing_raised do
-      imaps_test do |port|
-        Net::IMAP.new("localhost",
-                      :port => port,
-                      :ssl => { :verify_mode => OpenSSL::SSL::VERIFY_NONE })
+    if defined?(OpenSSL)
+      assert_nothing_raised do
+        imaps_test do |port|
+          Net::IMAP.new("localhost",
+                        :port => port,
+                        :ssl => { :verify_mode => OpenSSL::SSL::VERIFY_NONE })
+        end
       end
     end
   end
 
   def test_imaps_post_connection_check
-    assert_raise(OpenSSL::SSL::SSLError) do
-      imaps_test do |port|
-        Net::IMAP.new("127.0.0.1",
-                      :port => port,
-                      :ssl => { :ca_file => CA_FILE })
+    if defined?(OpenSSL)
+      assert_raise(OpenSSL::SSL::SSLError) do
+        imaps_test do |port|
+          Net::IMAP.new("127.0.0.1",
+                        :port => port,
+                        :ssl => { :ca_file => CA_FILE })
+        end
       end
     end
   end
 
   def test_starttls
-    starttls_test do |port|
-      imap = Net::IMAP.new("localhost", :port => port)
-      imap.starttls(:ca_file => CA_FILE)
-      imap
+    if defined?(OpenSSL)
+      starttls_test do |port|
+        imap = Net::IMAP.new("localhost", :port => port)
+        imap.starttls(:ca_file => CA_FILE)
+        imap
+      end
     end
   end
 
diff --git a/version.h b/version.h
index f6c81fa759..03f3159bff 100644
--- a/version.h
+++ b/version.h
@@ -1,7 +1,7 @@
 #define RUBY_VERSION "1.9.0"
-#define RUBY_RELEASE_DATE "2007-12-30"
+#define RUBY_RELEASE_DATE "2007-12-31"
 #define RUBY_VERSION_CODE 190
-#define RUBY_RELEASE_CODE 20071230
+#define RUBY_RELEASE_CODE 20071231
 #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 12
-#define RUBY_RELEASE_DAY 30
+#define RUBY_RELEASE_DAY 31
 
 #ifdef RUBY_EXTERN
 RUBY_EXTERN const char ruby_version[];