Rails 4 is now the out-of-the-box default

Gemfile

@@ -12,7 +12,7 @@ end
 
 module ::Kernel
   def rails4?
-    !!ENV["RAILS4"]
+    !ENV["RAILS3"]
   end
 end
 
@@ -35,7 +35,7 @@ end
 gem 'seed-fu' , github: 'SamSaffron/seed-fu'
 
 if rails4?
-  gem 'rails', :git => 'git://github.com/rails/rails.git', :branch => '4-0-stable'
+  gem 'rails'
   gem 'redis-rails', :git => 'git://github.com/SamSaffron/redis-store.git'
   gem 'rails-observers'
   gem 'actionpack-action_caching'

Gemfile_rails4.lock

@@ -15,48 +15,6 @@ GIT
       activerecord (>= 3.1, < 4.1)
       activesupport (>= 3.1, < 4.1)
 
-GIT
-  remote: git://github.com/rails/rails.git
-  revision: 7b2f64fca71c8d13428eb48b65399736a8327554
-  branch: 4-0-stable
-  specs:
-    actionmailer (4.0.0)
-      actionpack (= 4.0.0)
-      mail (~> 2.5.4)
-    actionpack (4.0.0)
-      activesupport (= 4.0.0)
-      builder (~> 3.1.0)
-      erubis (~> 2.7.0)
-      rack (~> 1.5.2)
-      rack-test (~> 0.6.2)
-    activemodel (4.0.0)
-      activesupport (= 4.0.0)
-      builder (~> 3.1.0)
-    activerecord (4.0.0)
-      activemodel (= 4.0.0)
-      activerecord-deprecated_finders (~> 1.0.2)
-      activesupport (= 4.0.0)
-      arel (~> 4.0.0)
-    activesupport (4.0.0)
-      i18n (~> 0.6, >= 0.6.4)
-      minitest (~> 4.2)
-      multi_json (~> 1.3)
-      thread_safe (~> 0.1)
-      tzinfo (~> 0.3.37)
-    rails (4.0.0)
-      actionmailer (= 4.0.0)
-      actionpack (= 4.0.0)
-      activerecord (= 4.0.0)
-      activesupport (= 4.0.0)
-      bundler (>= 1.3.0, < 2.0)
-      railties (= 4.0.0)
-      sprockets-rails (~> 2.0.0)
-    railties (4.0.0)
-      actionpack (= 4.0.0)
-      activesupport (= 4.0.0)
-      rake (>= 0.8.7)
-      thor (>= 0.18.1, < 2.0)
-
 GIT
   remote: git://github.com/sporkrb/spork-rails.git
   revision: 0dd45e59d3237b4c8f9efc215b46d9c07072a95e
@@ -153,11 +111,34 @@ PATH
 GEM
   remote: https://rubygems.org/
   specs:
+    actionmailer (4.0.1)
+      actionpack (= 4.0.1)
+      mail (~> 2.5.4)
+    actionpack (4.0.1)
+      activesupport (= 4.0.1)
+      builder (~> 3.1.0)
+      erubis (~> 2.7.0)
+      rack (~> 1.5.2)
+      rack-test (~> 0.6.2)
     actionpack-action_caching (1.0.0)
       actionpack (>= 4.0.0.beta, < 5.0)
     active_model_serializers (0.8.1)
       activemodel (>= 3.0)
+    activemodel (4.0.1)
+      activesupport (= 4.0.1)
+      builder (~> 3.1.0)
+    activerecord (4.0.1)
+      activemodel (= 4.0.1)
+      activerecord-deprecated_finders (~> 1.0.2)
+      activesupport (= 4.0.1)
+      arel (~> 4.0.0)
     activerecord-deprecated_finders (1.0.3)
+    activesupport (4.0.1)
+      i18n (~> 0.6, >= 0.6.4)
+      minitest (~> 4.2)
+      multi_json (~> 1.3)
+      thread_safe (~> 0.1)
+      tzinfo (~> 0.3.37)
     addressable (2.3.5)
     airbrake (3.1.2)
       activesupport
@@ -334,8 +315,21 @@ GEM
       rack
     rack-test (0.6.2)
       rack (>= 1.0)
+    rails (4.0.1)
+      actionmailer (= 4.0.1)
+      actionpack (= 4.0.1)
+      activerecord (= 4.0.1)
+      activesupport (= 4.0.1)
+      bundler (>= 1.3.0, < 2.0)
+      railties (= 4.0.1)
+      sprockets-rails (~> 2.0.0)
     rails-observers (0.1.2)
       activemodel (~> 4.0)
+    railties (4.0.1)
+      actionpack (= 4.0.1)
+      activesupport (= 4.0.1)
+      rake (>= 0.8.7)
+      thor (>= 0.18.1, < 2.0)
     raindrops (0.12.0)
     rake (10.1.0)
     rake-compiler (0.9.1)
@@ -518,7 +512,7 @@ DEPENDENCIES
   rack-cors
   rack-mini-profiler!
   rack-protection
-  rails!
+  rails
   rails-observers
   rails_multisite!
   rake

lib/tasks/assets.rake

@@ -4,7 +4,7 @@ task 'assets:precompile' => 'environment' do
   # this breaks stuff like the emoji plugin. We could fix it,
   # but its a major pain with little benefit.
   if rails4?
-    puts "Copying non-digested versions of assets"
+    puts "> Copying non-digested versions of assets"
     assets = Dir.glob(File.join(Rails.root, 'public/assets/**/*'))
     regex = /(-{1}[a-z0-9]{32}*\.{1}){1}/
     assets.each do |file|
@@ -16,5 +16,7 @@ task 'assets:precompile' => 'environment' do
       non_digested = File.join(source)
       FileUtils.cp(file, non_digested)
     end
+    puts "> Removing cache"
+    `rm -fr tmp/cache`
   end
 end