9 files changed, 21 insertions, 18 deletions

diff --git a/guides/assets/stylesheets/main.css b/guides/assets/stylesheets/main.css
index dd029e6314..ca319c91cf 100644
--- a/guides/assets/stylesheets/main.css
+++ b/guides/assets/stylesheets/main.css
@@ -244,7 +244,7 @@ body {
 #subCol {
   position: absolute;
   z-index: 0;
-  top: 0;
+  top: 21px;
   right: 0;
   background: #FFF;
   padding: 1em 1.5em 1em 1.25em;
diff --git a/guides/code/getting_started/app/views/posts/_form.html.erb b/guides/code/getting_started/app/views/posts/_form.html.erb
index c9fb74af9c..f2f83585e1 100644
--- a/guides/code/getting_started/app/views/posts/_form.html.erb
+++ b/guides/code/getting_started/app/views/posts/_form.html.erb
@@ -1,6 +1,6 @@
 <%= form_for @post do |f| %>
   <% if @post.errors.any? %>
-  <div id="errorExplanation">
+  <div id="error_explanation">
     <h2><%= pluralize(@post.errors.count, "error") %> prohibited
       this post from being saved:</h2>
     <ul>
@@ -14,12 +14,12 @@
     <%= f.label :title %><br>
     <%= f.text_field :title %>
   </p>
- 
+
   <p>
     <%= f.label :text %><br>
     <%= f.text_area :text %>
   </p>
- 
+
   <p>
     <%= f.submit %>
   </p>
diff --git a/guides/source/_welcome.html.erb b/guides/source/_welcome.html.erb
index a50961a0c7..9210c40c17 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 3.2 based on <a href="https://github.com/rails/rails/tree/<%= @version %>"><%= @version %></a>.
+  These are the new guides for Rails 4.0 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 Rails 3.2.x are available at <a href="http://guides.rubyonrails.org/v3.2.13/">http://guides.rubyonrails.org/v3.2.13/</a>.
+</p>
+<p>
   The guides for Rails 2.3.x are available at <a href="http://guides.rubyonrails.org/v2.3.11/">http://guides.rubyonrails.org/v2.3.11/</a>.
 </p>
diff --git a/guides/source/command_line.md b/guides/source/command_line.md
index e0b44bbf93..e00e70576f 100644
--- a/guides/source/command_line.md
+++ b/guides/source/command_line.md
@@ -64,7 +64,7 @@ With no further work, `rails server` will run our new shiny Rails app:
 $ cd commandsapp
 $ rails server
 => Booting WEBrick
-=> Rails 3.2.3 application starting in development on http://0.0.0.0:3000
+=> Rails 4.0.0 application starting in development on http://0.0.0.0:3000
 => Call with -d to detach
 => Ctrl-C to shutdown server
 [2012-05-28 00:39:41] INFO  WEBrick 1.3.1
@@ -289,7 +289,7 @@ If you wish to test out some code without changing any data, you can do that by
 
 ```bash
 $ rails console --sandbox
-Loading development environment in sandbox (Rails 3.2.3)
+Loading development environment in sandbox (Rails 4.0.0)
 Any modifications you make will be rolled back on exit
 irb(main):001:0>
 ```
diff --git a/guides/source/debugging_rails_applications.md b/guides/source/debugging_rails_applications.md
index 70055c1d7d..0860e3119d 100644
--- a/guides/source/debugging_rails_applications.md
+++ b/guides/source/debugging_rails_applications.md
@@ -248,7 +248,7 @@ Make sure you have started your web server with the option `--debugger`:
 ```bash
 $ rails server --debugger
 => Booting WEBrick
-=> Rails 3.2.13 application starting on http://0.0.0.0:3000
+=> Rails 4.0.0 application starting on http://0.0.0.0:3000
 => Debugger enabled
 ...
 ```
@@ -504,7 +504,7 @@ TIP: You can use the debugger while using `rails console`. Just remember to `req
 
 ```
 $ rails console
-Loading development environment (Rails 3.2.13)
+Loading development environment (Rails 4.0.0)
 >> require "debugger"
 => []
 >> author = Author.first
diff --git a/guides/source/form_helpers.md b/guides/source/form_helpers.md
index b409534cb0..7f37a298b1 100644
--- a/guides/source/form_helpers.md
+++ b/guides/source/form_helpers.md
@@ -973,4 +973,4 @@ As a convenience you can instead pass the symbol `:all_blank` which will create
 
 ### Adding Fields on the Fly
 
-Rather than rendering multiple sets of fields ahead of time you may wish to add them only when a user clicks on an 'Add new child' button. Rails does not provide any builtin support for this. When generating new sets of fields you must ensure the the key of the associated array is unique - the current javascript date (milliseconds after the epoch) is a common choice.
+Rather than rendering multiple sets of fields ahead of time you may wish to add them only when a user clicks on an 'Add new child' button. Rails does not provide any builtin support for this. When generating new sets of fields you must ensure the key of the associated array is unique - the current javascript date (milliseconds after the epoch) is a common choice.
diff --git a/guides/source/getting_started.md b/guides/source/getting_started.md
index 0d44f0e776..a773519bba 100644
--- a/guides/source/getting_started.md
+++ b/guides/source/getting_started.md
@@ -793,7 +793,7 @@ something went wrong. To do that, you'll modify
 ```html+erb
 <%= form_for :post, url: posts_path do |f| %>
   <% if @post.errors.any? %>
-  <div id="errorExplanation">
+  <div id="error_explanation">
     <h2><%= pluralize(@post.errors.count, "error") %> prohibited
       this post from being saved:</h2>
     <ul>
@@ -862,7 +862,7 @@ it look as follows:
 
 <%= form_for :post, url: post_path(@post.id), method: :patch do |f| %>
   <% if @post.errors.any? %>
-  <div id="errorExplanation">
+  <div id="error_explanation">
     <h2><%= pluralize(@post.errors.count, "error") %> prohibited
       this post from being saved:</h2>
     <ul>
@@ -977,7 +977,7 @@ content:
 ```html+erb
 <%= form_for @post do |f| %>
   <% if @post.errors.any? %>
-  <div id="errorExplanation">
+  <div id="error_explanation">
     <h2><%= pluralize(@post.errors.count, "error") %> prohibited
       this post from being saved:</h2>
     <ul>
diff --git a/guides/source/migrations.md b/guides/source/migrations.md
index eb0cfd9451..508e52a77c 100644
--- a/guides/source/migrations.md
+++ b/guides/source/migrations.md
@@ -390,8 +390,8 @@ will create a `categorization` table.
 
 ```ruby
 create_join_table :products, :categories do |t|
-  t.index :products
-  t.index :categories
+  t.index :product_id
+  t.index :category_id
 end
 ```
 
diff --git a/guides/source/routing.md b/guides/source/routing.md
index 076b9dd176..592429952a 100644
--- a/guides/source/routing.md
+++ b/guides/source/routing.md
@@ -767,11 +767,11 @@ You can also reuse dynamic segments from the match in the path to redirect to:
 get '/stories/:name', to: redirect('/posts/%{name}')
 ```
 
-You can also provide a block to redirect, which receives the params and the request object:
+You can also provide a block to redirect, which receives the symbolized path parameters and the request object:
 
 ```ruby
-get '/stories/:name', to: redirect {|params, req| "/posts/#{params[:name].pluralize}" }
-get '/stories', to: redirect {|p, req| "/posts/#{req.subdomain}" }
+get '/stories/:name', to: redirect {|path_params, req| "/posts/#{path_params[:name].pluralize}" }
+get '/stories', to: redirect {|path_params, req| "/posts/#{req.subdomain}" }
 ```
 
 Please note that this redirection is a 301 "Moved Permanently" redirect. Keep in mind that some web browsers or proxy servers will cache this type of redirect, making the old page inaccessible.