diff --git a/CHANGELOG.md b/CHANGELOG.md
index 148f3585..fc113961 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,9 @@
+## 3.0.0.dev
+
+### enhancements
+  * Support to Rails 4.
+  * Removed deprecated methods.
+
 ## 2.1.0.dev
 
 ### enhancements
diff --git a/lib/simple_form/action_view_extensions/builder.rb b/lib/simple_form/action_view_extensions/builder.rb
index bd08f15f..b79a56eb 100644
--- a/lib/simple_form/action_view_extensions/builder.rb
+++ b/lib/simple_form/action_view_extensions/builder.rb
@@ -3,12 +3,6 @@ module SimpleForm
     # A collection of methods required by simple_form but added to rails default form.
     # This means that you can use such methods outside simple_form context.
     module Builder
-      # deprecated
-      def collection_radio(*args, &block)
-        SimpleForm.deprecation_warn "The `collection_radio` helper is deprecated, " \
-          "please use `collection_radio_buttons` instead."
-        collection_radio_buttons(*args, &block)
-      end
 
       # Wrapper for using SimpleForm inside a default rails form.
       # Example:
diff --git a/lib/simple_form/form_builder.rb b/lib/simple_form/form_builder.rb
index f9139e66..4fd1d9ec 100644
--- a/lib/simple_form/form_builder.rb
+++ b/lib/simple_form/form_builder.rb
@@ -362,12 +362,6 @@ module SimpleForm
       column     = find_attribute_column(attribute_name)
       input_type = default_input_type(attribute_name, column, options)
 
-      if input_type == :radio
-        SimpleForm.deprecation_warn "Using `:as => :radio` as input type is " \
-          "deprecated, please change it to `:as => :radio_buttons`."
-        input_type = :radio_buttons
-      end
-
       if block_given?
         SimpleForm::Inputs::BlockInput.new(self, attribute_name, column, input_type, options, &block)
       else
diff --git a/lib/simple_form/wrappers/builder.rb b/lib/simple_form/wrappers/builder.rb
index 1e041505..25d9f6a9 100644
--- a/lib/simple_form/wrappers/builder.rb
+++ b/lib/simple_form/wrappers/builder.rb
@@ -46,18 +46,6 @@ module SimpleForm
       end
 
       def use(name, options=nil, &block)
-        if block_given?
-          ActiveSupport::Deprecation.warn "Passing a block to use is deprecated. " \
-            "Please use wrapper instead of use."
-          return wrapper(name, options, &block)
-        end
-
-        if options && options.keys != [:wrap_with]
-          ActiveSupport::Deprecation.warn "Passing :tag, :class and others to use is deprecated. " \
-            "Please invoke b.use #{name.inspect}, :wrap_with => #{options.inspect} instead."
-          options = { :wrap_with => options }
-        end
-
         if options && wrapper = options[:wrap_with]
           @components << Single.new(name, wrapper)
         else
@@ -66,18 +54,6 @@ module SimpleForm
       end
 
       def optional(name, options=nil, &block)
-        if block_given?
-          ActiveSupport::Deprecation.warn "Passing a block to optional is deprecated. " \
-            "Please use wrapper instead of optional."
-          return wrapper(name, options, &block)
-        end
-
-        if options && options.keys != [:wrap_with]
-          ActiveSupport::Deprecation.warn "Passing :tag, :class and others to optional is deprecated. " \
-            "Please invoke b.optional #{name.inspect}, :wrap_with => #{options.inspect} instead."
-          options = { :wrap_with => options }
-        end
-
         @options[name] = false
         use(name, options, &block)
       end
diff --git a/test/action_view_extensions/builder_test.rb b/test/action_view_extensions/builder_test.rb
index 5accf708..01a7468c 100644
--- a/test/action_view_extensions/builder_test.rb
+++ b/test/action_view_extensions/builder_test.rb
@@ -242,18 +242,6 @@ class BuilderTest < ActionView::TestCase
     end
   end
 
-  test 'collection_radio helper is deprecated in favor of collection_radio_buttons' do
-    assert_deprecated "[SIMPLE_FORM] The `collection_radio` helper is deprecated, " \
-      "please use `collection_radio_buttons` instead" do
-      with_concat_form_for(@user) do |f|
-        f.collection_radio :active, [true, false], :to_s, :to_s
-      end
-    end
-
-    assert_select 'input[type=radio][value=true]'
-    assert_select 'input[type=radio][value=false]'
-  end
-
   # COLLECTION CHECK BOX
   test 'collection check box accepts a collection and generate a serie of checkboxes for value method' do
     collection = [Tag.new(1, 'Tag 1'), Tag.new(2, 'Tag 2')]
diff --git a/test/inputs/collection_radio_buttons_input_test.rb b/test/inputs/collection_radio_buttons_input_test.rb
index 216880fb..f0a394c7 100644
--- a/test/inputs/collection_radio_buttons_input_test.rb
+++ b/test/inputs/collection_radio_buttons_input_test.rb
@@ -6,15 +6,6 @@ class CollectionRadioButtonsInputTest < ActionView::TestCase
     SimpleForm::Inputs::CollectionRadioButtonsInput.reset_i18n_cache :boolean_collection
   end
 
-  test 'input :as => :radio is deprecated in favor of :as => :radio_buttons' do
-    assert_deprecated "[SIMPLE_FORM] Using `:as => :radio` as " \
-          "input type is deprecated, please change it to `:as => :radio_buttons`." do
-      with_input_for @user, :active, :radio
-    end
-
-    assert_select 'input[type=radio].radio_buttons', :count => 2
-  end
-
   test 'input should generate boolean radio buttons by default for radio types' do
     with_input_for @user, :active, :radio_buttons
     assert_select 'input[type=radio][value=true].radio_buttons#user_active_true'