diff --git a/Gemfile.lock b/Gemfile.lock
index d52b851de3a13..e658f2bbfadf3 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -36,58 +36,58 @@ GIT
 PATH
   remote: .
   specs:
-    actioncable (5.0.0.beta4)
-      actionpack (= 5.0.0.beta4)
+    actioncable (5.0.0.rc1)
+      actionpack (= 5.0.0.rc1)
       nio4r (~> 1.2)
       websocket-driver (~> 0.6.1)
-    actionmailer (5.0.0.beta4)
-      actionpack (= 5.0.0.beta4)
-      actionview (= 5.0.0.beta4)
-      activejob (= 5.0.0.beta4)
+    actionmailer (5.0.0.rc1)
+      actionpack (= 5.0.0.rc1)
+      actionview (= 5.0.0.rc1)
+      activejob (= 5.0.0.rc1)
       mail (~> 2.5, >= 2.5.4)
       rails-dom-testing (~> 1.0, >= 1.0.5)
-    actionpack (5.0.0.beta4)
-      actionview (= 5.0.0.beta4)
-      activesupport (= 5.0.0.beta4)
+    actionpack (5.0.0.rc1)
+      actionview (= 5.0.0.rc1)
+      activesupport (= 5.0.0.rc1)
       rack (~> 2.x)
       rack-test (~> 0.6.3)
       rails-dom-testing (~> 1.0, >= 1.0.5)
       rails-html-sanitizer (~> 1.0, >= 1.0.2)
-    actionview (5.0.0.beta4)
-      activesupport (= 5.0.0.beta4)
+    actionview (5.0.0.rc1)
+      activesupport (= 5.0.0.rc1)
       builder (~> 3.1)
       erubis (~> 2.7.0)
       rails-dom-testing (~> 1.0, >= 1.0.5)
       rails-html-sanitizer (~> 1.0, >= 1.0.2)
-    activejob (5.0.0.beta4)
-      activesupport (= 5.0.0.beta4)
+    activejob (5.0.0.rc1)
+      activesupport (= 5.0.0.rc1)
       globalid (>= 0.3.6)
-    activemodel (5.0.0.beta4)
-      activesupport (= 5.0.0.beta4)
-    activerecord (5.0.0.beta4)
-      activemodel (= 5.0.0.beta4)
-      activesupport (= 5.0.0.beta4)
+    activemodel (5.0.0.rc1)
+      activesupport (= 5.0.0.rc1)
+    activerecord (5.0.0.rc1)
+      activemodel (= 5.0.0.rc1)
+      activesupport (= 5.0.0.rc1)
       arel (~> 7.0)
-    activesupport (5.0.0.beta4)
+    activesupport (5.0.0.rc1)
       concurrent-ruby (~> 1.0, >= 1.0.2)
       i18n (~> 0.7)
       minitest (~> 5.1)
       tzinfo (~> 1.1)
-    rails (5.0.0.beta4)
-      actioncable (= 5.0.0.beta4)
-      actionmailer (= 5.0.0.beta4)
-      actionpack (= 5.0.0.beta4)
-      actionview (= 5.0.0.beta4)
-      activejob (= 5.0.0.beta4)
-      activemodel (= 5.0.0.beta4)
-      activerecord (= 5.0.0.beta4)
-      activesupport (= 5.0.0.beta4)
+    rails (5.0.0.rc1)
+      actioncable (= 5.0.0.rc1)
+      actionmailer (= 5.0.0.rc1)
+      actionpack (= 5.0.0.rc1)
+      actionview (= 5.0.0.rc1)
+      activejob (= 5.0.0.rc1)
+      activemodel (= 5.0.0.rc1)
+      activerecord (= 5.0.0.rc1)
+      activesupport (= 5.0.0.rc1)
       bundler (>= 1.3.0, < 2.0)
-      railties (= 5.0.0.beta4)
+      railties (= 5.0.0.rc1)
       sprockets-rails (>= 2.0.0)
-    railties (5.0.0.beta4)
-      actionpack (= 5.0.0.beta4)
-      activesupport (= 5.0.0.beta4)
+    railties (5.0.0.rc1)
+      actionpack (= 5.0.0.rc1)
+      activesupport (= 5.0.0.rc1)
       method_source
       rake (>= 0.8.7)
       thor (>= 0.18.1, < 2.0)
diff --git a/RAILS_VERSION b/RAILS_VERSION
index 6fb42146e5029..f73ebf1c37ac2 100644
--- a/RAILS_VERSION
+++ b/RAILS_VERSION
@@ -1 +1 @@
-5.0.0.beta4
+5.0.0.rc1
diff --git a/actioncable/CHANGELOG.md b/actioncable/CHANGELOG.md
index 0bf6246933c44..375fe88b2fcbd 100644
--- a/actioncable/CHANGELOG.md
+++ b/actioncable/CHANGELOG.md
@@ -1,3 +1,8 @@
+## Rails 5.0.0.rc1 (May 06, 2016) ##
+
+*   No changes.
+
+
 ## Rails 5.0.0.beta4 (April 27, 2016) ##
 
 *   WebSocket protocol negotiation.
diff --git a/actioncable/lib/action_cable/gem_version.rb b/actioncable/lib/action_cable/gem_version.rb
index 5ca2f473b13a3..a0c0b7969e9a6 100644
--- a/actioncable/lib/action_cable/gem_version.rb
+++ b/actioncable/lib/action_cable/gem_version.rb
@@ -8,7 +8,7 @@ module VERSION
     MAJOR = 5
     MINOR = 0
     TINY  = 0
-    PRE   = "beta4"
+    PRE   = "rc1"
 
     STRING = [MAJOR, MINOR, TINY, PRE].compact.join(".")
   end
diff --git a/actionmailer/CHANGELOG.md b/actionmailer/CHANGELOG.md
index a271ed68f75c0..e916305e54a24 100644
--- a/actionmailer/CHANGELOG.md
+++ b/actionmailer/CHANGELOG.md
@@ -1,3 +1,8 @@
+## Rails 5.0.0.rc1 (May 06, 2016) ##
+
+*   No changes.
+
+
 ## Rails 5.0.0.beta4 (April 27, 2016) ##
 
 *   Disallow calling `#deliver_later` after making local modifications to
diff --git a/actionmailer/lib/action_mailer/gem_version.rb b/actionmailer/lib/action_mailer/gem_version.rb
index d8e3a6ddbe3d9..759b932c58d49 100644
--- a/actionmailer/lib/action_mailer/gem_version.rb
+++ b/actionmailer/lib/action_mailer/gem_version.rb
@@ -8,7 +8,7 @@ module VERSION
     MAJOR = 5
     MINOR = 0
     TINY  = 0
-    PRE   = "beta4"
+    PRE   = "rc1"
 
     STRING = [MAJOR, MINOR, TINY, PRE].compact.join(".")
   end
diff --git a/actionpack/CHANGELOG.md b/actionpack/CHANGELOG.md
index 49866d0d034a0..f753c44029f6b 100644
--- a/actionpack/CHANGELOG.md
+++ b/actionpack/CHANGELOG.md
@@ -1,3 +1,5 @@
+## Rails 5.0.0.rc1 (May 06, 2016) ##
+
 *   Add `ActionController#helpers` to get access to the view context at the controller
     level.
 
diff --git a/actionpack/lib/action_pack/gem_version.rb b/actionpack/lib/action_pack/gem_version.rb
index 0fa51fa0fe19f..bbb637166edc8 100644
--- a/actionpack/lib/action_pack/gem_version.rb
+++ b/actionpack/lib/action_pack/gem_version.rb
@@ -8,7 +8,7 @@ module VERSION
     MAJOR = 5
     MINOR = 0
     TINY  = 0
-    PRE   = "beta4"
+    PRE   = "rc1"
 
     STRING = [MAJOR, MINOR, TINY, PRE].compact.join(".")
   end
diff --git a/actionview/CHANGELOG.md b/actionview/CHANGELOG.md
index 330544ba7d2f9..e610f77f1e003 100644
--- a/actionview/CHANGELOG.md
+++ b/actionview/CHANGELOG.md
@@ -1,6 +1,11 @@
+## Rails 5.0.0.rc1 (May 06, 2016) ##
+
+*   No changes.
+
+
 ## Rails 5.0.0.beta4 (April 27, 2016) ##
 
-*   `date_select` helper `:with_css_classes` option now accepts a hash of strings 
+*   `date_select` helper `:with_css_classes` option now accepts a hash of strings
     for `:year`, `:month`, `:day`, `:hour`, `:minute`, `:second` that will extend
     the select type with the given css class value.
 
diff --git a/actionview/lib/action_view/gem_version.rb b/actionview/lib/action_view/gem_version.rb
index 7f86994fd4bff..36eb33fbd9e9c 100644
--- a/actionview/lib/action_view/gem_version.rb
+++ b/actionview/lib/action_view/gem_version.rb
@@ -8,7 +8,7 @@ module VERSION
     MAJOR = 5
     MINOR = 0
     TINY  = 0
-    PRE   = "beta4"
+    PRE   = "rc1"
 
     STRING = [MAJOR, MINOR, TINY, PRE].compact.join(".")
   end
diff --git a/activejob/CHANGELOG.md b/activejob/CHANGELOG.md
index c56cb5b1fb5a4..93b913bf155f6 100644
--- a/activejob/CHANGELOG.md
+++ b/activejob/CHANGELOG.md
@@ -1,3 +1,8 @@
+## Rails 5.0.0.rc1 (May 06, 2016) ##
+
+*   No changes.
+
+
 ## Rails 5.0.0.beta4 (April 27, 2016) ##
 
 *   Enable class reloading prior to job dispatch, and ensure Active Record
diff --git a/activejob/lib/active_job/gem_version.rb b/activejob/lib/active_job/gem_version.rb
index d3ac0a4930138..a18a5ed1b49fc 100644
--- a/activejob/lib/active_job/gem_version.rb
+++ b/activejob/lib/active_job/gem_version.rb
@@ -8,7 +8,7 @@ module VERSION
     MAJOR = 5
     MINOR = 0
     TINY  = 0
-    PRE   = "beta4"
+    PRE   = "rc1"
 
     STRING = [MAJOR, MINOR, TINY, PRE].compact.join(".")
   end
diff --git a/activemodel/CHANGELOG.md b/activemodel/CHANGELOG.md
index d221eff1e7717..a1220ba4c5f0b 100644
--- a/activemodel/CHANGELOG.md
+++ b/activemodel/CHANGELOG.md
@@ -1,3 +1,8 @@
+## Rails 5.0.0.rc1 (May 06, 2016) ##
+
+*   No changes.
+
+
 ## Rails 5.0.0.beta4 (April 27, 2016) ##
 
 *   Allow passing record being validated to the message proc to generate
diff --git a/activemodel/lib/active_model/gem_version.rb b/activemodel/lib/active_model/gem_version.rb
index 514c3ba4a8efc..d1a9a3bec918e 100644
--- a/activemodel/lib/active_model/gem_version.rb
+++ b/activemodel/lib/active_model/gem_version.rb
@@ -8,7 +8,7 @@ module VERSION
     MAJOR = 5
     MINOR = 0
     TINY  = 0
-    PRE   = "beta4"
+    PRE   = "rc1"
 
     STRING = [MAJOR, MINOR, TINY, PRE].compact.join(".")
   end
diff --git a/activerecord/CHANGELOG.md b/activerecord/CHANGELOG.md
index fdf310f15fbb2..e954bd2fb7fb4 100644
--- a/activerecord/CHANGELOG.md
+++ b/activerecord/CHANGELOG.md
@@ -1,3 +1,8 @@
+## Rails 5.0.0.rc1 (May 06, 2016) ##
+
+*   No changes.
+
+
 ## Rails 5.0.0.beta4 (April 27, 2016) ##
 
 *   PostgreSQL: Support Expression Indexes and Operator Classes.
diff --git a/activerecord/lib/active_record/gem_version.rb b/activerecord/lib/active_record/gem_version.rb
index bb7d8c3031fa3..748d208397b5d 100644
--- a/activerecord/lib/active_record/gem_version.rb
+++ b/activerecord/lib/active_record/gem_version.rb
@@ -8,7 +8,7 @@ module VERSION
     MAJOR = 5
     MINOR = 0
     TINY  = 0
-    PRE   = "beta4"
+    PRE   = "rc1"
 
     STRING = [MAJOR, MINOR, TINY, PRE].compact.join(".")
   end
diff --git a/activesupport/CHANGELOG.md b/activesupport/CHANGELOG.md
index 3e07f5a0329d4..154739a6274b7 100644
--- a/activesupport/CHANGELOG.md
+++ b/activesupport/CHANGELOG.md
@@ -1,3 +1,5 @@
+## Rails 5.0.0.rc1 (May 06, 2016) ##
+
 *   `ActiveSupport::Duration` supports weeks and hours.
 
         [1.hour.inspect, 1.hour.value, 1.hour.parts]
diff --git a/activesupport/lib/active_support/gem_version.rb b/activesupport/lib/active_support/gem_version.rb
index 4048133fb4499..79b30abd3427f 100644
--- a/activesupport/lib/active_support/gem_version.rb
+++ b/activesupport/lib/active_support/gem_version.rb
@@ -8,7 +8,7 @@ module VERSION
     MAJOR = 5
     MINOR = 0
     TINY  = 0
-    PRE   = "beta4"
+    PRE   = "rc1"
 
     STRING = [MAJOR, MINOR, TINY, PRE].compact.join(".")
   end
diff --git a/guides/CHANGELOG.md b/guides/CHANGELOG.md
index f49e1fa81eabf..6fdd0b20c532b 100644
--- a/guides/CHANGELOG.md
+++ b/guides/CHANGELOG.md
@@ -1,3 +1,8 @@
+## Rails 5.0.0.rc1 (May 06, 2016) ##
+
+*   No changes.
+
+
 ## Rails 5.0.0.beta4 (April 27, 2016) ##
 
 *   Update example of passing a proc to `:message` option for validating records.
diff --git a/railties/CHANGELOG.md b/railties/CHANGELOG.md
index ed3a3e852756c..f61713c561cc2 100644
--- a/railties/CHANGELOG.md
+++ b/railties/CHANGELOG.md
@@ -1,3 +1,8 @@
+## Rails 5.0.0.rc1 (May 06, 2016) ##
+
+*   No changes.
+
+
 ## Rails 5.0.0.beta4 (April 27, 2016) ##
 
 *   Add `config/initializers/to_time_preserves_timezone.rb`, which tells
diff --git a/railties/lib/rails/gem_version.rb b/railties/lib/rails/gem_version.rb
index 08a331bff273e..a3a241235f094 100644
--- a/railties/lib/rails/gem_version.rb
+++ b/railties/lib/rails/gem_version.rb
@@ -8,7 +8,7 @@ module VERSION
     MAJOR = 5
     MINOR = 0
     TINY  = 0
-    PRE   = "beta4"
+    PRE   = "rc1"
 
     STRING = [MAJOR, MINOR, TINY, PRE].compact.join(".")
   end
diff --git a/version.rb b/version.rb
index 08a331bff273e..a3a241235f094 100644
--- a/version.rb
+++ b/version.rb
@@ -8,7 +8,7 @@ module VERSION
     MAJOR = 5
     MINOR = 0
     TINY  = 0
-    PRE   = "beta4"
+    PRE   = "rc1"
 
     STRING = [MAJOR, MINOR, TINY, PRE].compact.join(".")
   end