Drop support for Rails 3

README.md

@@ -26,7 +26,7 @@ Install the [rack-attack](http://rubygems.org/gems/rack-attack) gem; or add it t
 gem 'rack-attack'
 ```
 Tell your app to use the Rack::Attack middleware.
-For Rails 3+ apps:
+For Rails apps:
 
 ```ruby
 # In config/application.rb

lib/rack/attack/path_normalizer.rb

@@ -15,11 +15,8 @@ class Rack::Attack
   end
 
   PathNormalizer = if defined?(::ActionDispatch::Journey::Router::Utils)
-                 # For Rails 4+ apps
+                 # For Rails apps
                  ::ActionDispatch::Journey::Router::Utils
-               elsif defined?(::Journey::Router::Utils)
-                 # for Rails 3.2
-                 ::Journey::Router::Utils
                else
                  FallbackPathNormalizer
                end

spec/spec_helper.rb

@@ -7,9 +7,6 @@ require "rack/test"
 require 'active_support'
 require 'action_dispatch'
 
-# Load Journey for Rails 3.2
-require 'journey' if ActionPack::VERSION::MAJOR == 3
-
 require "rack/attack"
 
 begin