diff --git a/RAILS_VERSION b/RAILS_VERSION
index 42c2346b42cf1..f4163c9d3c0dc 100644
--- a/RAILS_VERSION
+++ b/RAILS_VERSION
@@ -1 +1 @@
-3.0.8.rc3
+3.0.8.rc4
diff --git a/actionmailer/lib/action_mailer/version.rb b/actionmailer/lib/action_mailer/version.rb
index d42a18b1b709d..89ca7a1a69f68 100644
--- a/actionmailer/lib/action_mailer/version.rb
+++ b/actionmailer/lib/action_mailer/version.rb
@@ -3,7 +3,7 @@ module VERSION #:nodoc:
     MAJOR = 3
     MINOR = 0
     TINY  = 8
-    PRE   = "rc3"
+    PRE   = "rc4"
 
     STRING = [MAJOR, MINOR, TINY, PRE].compact.join('.')
   end
diff --git a/actionpack/lib/action_pack/version.rb b/actionpack/lib/action_pack/version.rb
index eea0bd0851a36..c90174fc23031 100644
--- a/actionpack/lib/action_pack/version.rb
+++ b/actionpack/lib/action_pack/version.rb
@@ -3,7 +3,7 @@ module VERSION #:nodoc:
     MAJOR = 3
     MINOR = 0
     TINY  = 8
-    PRE   = "rc3"
+    PRE   = "rc4"
 
     STRING = [MAJOR, MINOR, TINY, PRE].compact.join('.')
   end
diff --git a/activemodel/lib/active_model/version.rb b/activemodel/lib/active_model/version.rb
index 4b92a40dab4b4..b70cc1745b356 100644
--- a/activemodel/lib/active_model/version.rb
+++ b/activemodel/lib/active_model/version.rb
@@ -3,7 +3,7 @@ module VERSION #:nodoc:
     MAJOR = 3
     MINOR = 0
     TINY  = 8
-    PRE   = "rc3"
+    PRE   = "rc4"
 
     STRING = [MAJOR, MINOR, TINY, PRE].compact.join('.')
   end
diff --git a/activerecord/lib/active_record/version.rb b/activerecord/lib/active_record/version.rb
index b28ac3bf8a715..367b0542dc315 100644
--- a/activerecord/lib/active_record/version.rb
+++ b/activerecord/lib/active_record/version.rb
@@ -3,7 +3,7 @@ module VERSION #:nodoc:
     MAJOR = 3
     MINOR = 0
     TINY  = 8
-    PRE   = "rc3"
+    PRE   = "rc4"
 
     STRING = [MAJOR, MINOR, TINY, PRE].compact.join('.')
   end
diff --git a/activeresource/lib/active_resource/version.rb b/activeresource/lib/active_resource/version.rb
index 98ef36bece0f0..44909ac22da64 100644
--- a/activeresource/lib/active_resource/version.rb
+++ b/activeresource/lib/active_resource/version.rb
@@ -3,7 +3,7 @@ module VERSION #:nodoc:
     MAJOR = 3
     MINOR = 0
     TINY  = 8
-    PRE   = "rc3"
+    PRE   = "rc4"
 
     STRING = [MAJOR, MINOR, TINY, PRE].compact.join('.')
   end
diff --git a/activesupport/lib/active_support/version.rb b/activesupport/lib/active_support/version.rb
index 15100250e801e..1f601602ec33d 100644
--- a/activesupport/lib/active_support/version.rb
+++ b/activesupport/lib/active_support/version.rb
@@ -3,7 +3,7 @@ module VERSION #:nodoc:
     MAJOR = 3
     MINOR = 0
     TINY  = 8
-    PRE   = "rc3"
+    PRE   = "rc4"
 
     STRING = [MAJOR, MINOR, TINY, PRE].compact.join('.')
   end
diff --git a/railties/lib/rails/version.rb b/railties/lib/rails/version.rb
index ff56c0cb97113..6a039213c0d75 100644
--- a/railties/lib/rails/version.rb
+++ b/railties/lib/rails/version.rb
@@ -3,7 +3,7 @@ module VERSION #:nodoc:
     MAJOR = 3
     MINOR = 0
     TINY  = 8
-    PRE   = "rc3"
+    PRE   = "rc4"
 
     STRING = [MAJOR, MINOR, TINY, PRE].compact.join('.')
   end
diff --git a/version.rb b/version.rb
index ff56c0cb97113..6a039213c0d75 100644
--- a/version.rb
+++ b/version.rb
@@ -3,7 +3,7 @@ module VERSION #:nodoc:
     MAJOR = 3
     MINOR = 0
     TINY  = 8
-    PRE   = "rc3"
+    PRE   = "rc4"
 
     STRING = [MAJOR, MINOR, TINY, PRE].compact.join('.')
   end