diff --git a/guides/source/_welcome.html.erb b/guides/source/_welcome.html.erb
index 614d69ecdd..6d6e3b95fb 100644
--- a/guides/source/_welcome.html.erb
+++ b/guides/source/_welcome.html.erb
@@ -10,10 +10,13 @@
 </p>
 <% else %>
 <p>
-  These are the new guides for Rails 4.2 based on <a href="https://github.com/rails/rails/tree/<%= @version %>"><%= @version %></a>.
+  These are the new guides for Rails 5.0 based on <a href="https://github.com/rails/rails/tree/<%= @version %>"><%= @version %></a>.
   These guides are designed to make you immediately productive with Rails, and to help you understand how all of the pieces fit together.
 </p>
 <% end %>
 <p>
-  The guides for earlier releases: <a href="http://guides.rubyonrails.org/v4.1.8/">Rails 4.1.8</a>, <a href="http://guides.rubyonrails.org/v4.0.12/">Rails 4.0.12</a>, <a href="http://guides.rubyonrails.org/v3.2.21/">Rails 3.2.21</a> and <a href="http://guides.rubyonrails.org/v2.3.11/">Rails 2.3.11</a>.
+The guides for earlier releases:
+<a href="http://guides.rubyonrails.org/v4.2.0/">Rails 4.2.0</a>,
+<a href="http://guides.rubyonrails.org/v3.2.21/">Rails 3.2.21</a> and
+<a href="http://guides.rubyonrails.org/v2.3.11/">Rails 2.3.11</a>.
 </p>
diff --git a/guides/source/command_line.md b/guides/source/command_line.md
index 72fbb32094..d14cdb93f2 100644
--- a/guides/source/command_line.md
+++ b/guides/source/command_line.md
@@ -63,7 +63,7 @@ With no further work, `rails server` will run our new shiny Rails app:
 $ cd commandsapp
 $ bin/rails server
 => Booting WEBrick
-=> Rails 4.2.0 application starting in development on http://localhost:3000
+=> Rails 5.0.0 application starting in development on http://localhost:3000
 => Call with -d to detach
 => Ctrl-C to shutdown server
 [2013-08-07 02:00:01] INFO  WEBrick 1.3.1
@@ -286,7 +286,7 @@ If you wish to test out some code without changing any data, you can do that by
 
 ```bash
 $ bin/rails console --sandbox
-Loading development environment in sandbox (Rails 4.2.0)
+Loading development environment in sandbox (Rails 5.0.0)
 Any modifications you make will be rolled back on exit
 irb(main):001:0>
 ```
@@ -395,10 +395,10 @@ INFO: You can also use `rake -T`  to get the list of tasks.
 ```bash
 $ bin/rake about
 About your application's environment
-Rails version             4.2.0
-Ruby version              1.9.3 (x86_64-linux)
-RubyGems version          1.3.6
-Rack version              1.3
+Rails version             5.0.0
+Ruby version              2.2.0 (x86_64-linux)
+RubyGems version          2.4.5
+Rack version              1.6
 JavaScript Runtime        Node.js (V8)
 Middleware                Rack::Sendfile, ActionDispatch::Static, Rack::Lock, #<ActiveSupport::Cache::Strategy::LocalCache::Middleware:0x007ffd131a7c88>, Rack::Runtime, Rack::MethodOverride, ActionDispatch::RequestId, Rails::Rack::Logger, ActionDispatch::ShowExceptions, ActionDispatch::DebugExceptions, ActionDispatch::RemoteIp, ActionDispatch::Reloader, ActionDispatch::Callbacks, ActiveRecord::Migration::CheckPending, ActiveRecord::ConnectionAdapters::ConnectionManagement, ActiveRecord::QueryCache, ActionDispatch::Cookies, ActionDispatch::Session::CookieStore, ActionDispatch::Flash, ActionDispatch::ParamsParser, Rack::Head, Rack::ConditionalGet, Rack::ETag
 Application root          /home/foobar/commandsapp
diff --git a/guides/source/debugging_rails_applications.md b/guides/source/debugging_rails_applications.md
index 4886a0245a..cef9ac083b 100644
--- a/guides/source/debugging_rails_applications.md
+++ b/guides/source/debugging_rails_applications.md
@@ -311,7 +311,7 @@ For example:
 
 ```bash
 => Booting WEBrick
-=> Rails 4.2.0 application starting in development on http://0.0.0.0:3000
+=> Rails 5.0.0 application starting in development on http://0.0.0.0:3000
 => Run `rails server -h` for more startup options
 => Notice: server is listening on all interfaces (0.0.0.0). Consider using 127.0.0.1 (--binding option)
 => Ctrl-C to shutdown server
@@ -424,11 +424,11 @@ then `backtrace` will supply the answer.
 --> #0  ArticlesController.index
       at /PathTo/project/test_app/app/controllers/articles_controller.rb:8
     #1  ActionController::ImplicitRender.send_action(method#String, *args#Array)
-      at /PathToGems/actionpack-4.2.0/lib/action_controller/metal/implicit_render.rb:4
+      at /PathToGems/actionpack-5.0.0/lib/action_controller/metal/implicit_render.rb:4
     #2  AbstractController::Base.process_action(action#NilClass, *args#Array)
-      at /PathToGems/actionpack-4.2.0/lib/abstract_controller/base.rb:189
+      at /PathToGems/actionpack-5.0.0/lib/abstract_controller/base.rb:189
     #3  ActionController::Rendering.process_action(action#NilClass, *args#NilClass)
-      at /PathToGems/actionpack-4.2.0/lib/action_controller/metal/rendering.rb:10
+      at /PathToGems/actionpack-5.0.0/lib/action_controller/metal/rendering.rb:10
 ...
 ```
 
@@ -440,7 +440,7 @@ context.
 ```
 (byebug) frame 2
 
-[184, 193] in /PathToGems/actionpack-4.2.0/lib/abstract_controller/base.rb
+[184, 193] in /PathToGems/actionpack-5.0.0/lib/abstract_controller/base.rb
    184:       # is the intended way to override action dispatching.
    185:       #
    186:       # Notice that the first argument is the method to be dispatched
@@ -657,7 +657,7 @@ instruction to be executed. In this case, the activesupport's `week` method.
 ```
 (byebug) step
 
-[50, 59] in /PathToGems/activesupport-4.2.0/lib/active_support/core_ext/numeric/time.rb
+[50, 59] in /PathToGems/activesupport-5.0.0/lib/active_support/core_ext/numeric/time.rb
    50:     ActiveSupport::Duration.new(self * 24.hours, [[:days, self]])
    51:   end
    52:   alias :day :days
diff --git a/guides/source/getting_started.md b/guides/source/getting_started.md
index bb80063f2b..e803f95911 100644
--- a/guides/source/getting_started.md
+++ b/guides/source/getting_started.md
@@ -125,7 +125,7 @@ run the following:
 $ rails --version
 ```
 
-If it says something like "Rails 4.2.0", you are ready to continue.
+If it says something like "Rails 5.0.0", you are ready to continue.
 
 ### Creating the Blog Application
 
diff --git a/guides/source/upgrading_ruby_on_rails.md b/guides/source/upgrading_ruby_on_rails.md
index 4efc0c67ee..0b9f59bb46 100644
--- a/guides/source/upgrading_ruby_on_rails.md
+++ b/guides/source/upgrading_ruby_on_rails.md
@@ -20,9 +20,10 @@ The best way to be sure that your application still works after upgrading is to
 
 Rails generally stays close to the latest released Ruby version when it's released:
 
-* Rails 3 and above require Ruby 1.8.7 or higher. Support for all of the previous Ruby versions has been dropped officially. You should upgrade as early as possible.
-* Rails 3.2.x is the last branch to support Ruby 1.8.7.
+* Rails 5 requires Ruby 2.2 or newer.
 * Rails 4 prefers Ruby 2.0 and requires 1.9.3 or newer.
+* Rails 3.2.x is the last branch to support Ruby 1.8.7.
+* Rails 3 and above require Ruby 1.8.7 or higher. Support for all of the previous Ruby versions has been dropped officially. You should upgrade as early as possible.
 
 TIP: Ruby 1.8.7 p248 and p249 have marshaling bugs that crash Rails. Ruby Enterprise Edition has these fixed since the release of 1.8.7-2010.02. On the 1.9 front, Ruby 1.9.1 is not usable because it outright segfaults, so if you want to use 1.9.x, jump straight to 1.9.3 for smooth sailing.
 
@@ -49,6 +50,9 @@ Overwrite /myapp/config/application.rb? (enter "h" for help) [Ynaqdh]
 
 Don't forget to review the difference, to see if there were any unexpected changes.
 
+Upgrading from Rails 4.2 to Rails 5.0
+-------------------------------------
+
 Upgrading from Rails 4.1 to Rails 4.2
 -------------------------------------