Remove deprecated support to passing absolute paths to render template:

actionview/CHANGELOG.md

@@ -1,3 +1,7 @@
+*   Remove deprecated support to passing absolute paths to `render template:`.
+
+    *Rafael Mendonça França*
+
 *   Remove deprecated support to passing relative paths to `render file:`.
 
     *Rafael Mendonça França*

actionview/lib/action_view/renderer/template_renderer.rb

@@ -92,8 +92,7 @@ module ActionView
         when String
           begin
             if layout.start_with?("/")
-              ActiveSupport::Deprecation.warn "Rendering layouts from an absolute path is deprecated."
+              raise ArgumentError, "Rendering layouts from an absolute path is not supported."
-              @lookup_context.with_fallbacks.find_template(layout, nil, false, [], details)
             else
               @lookup_context.find_template(layout, nil, false, [], details)
             end

actionview/test/actionpack/controller/layout_test.rb

@@ -237,10 +237,9 @@ class LayoutSetInResponseTest < ActionController::TestCase
 
   def test_absolute_pathed_layout
     @controller = AbsolutePathLayoutController.new
-    assert_deprecated do
+    assert_raises(ArgumentError) do
       get :hello
     end
-    assert_equal "layout_test.erb hello.erb", @response.body.strip
   end
 end
 

guides/source/6_1_release_notes.md

@@ -55,6 +55,8 @@ Please refer to the [Changelog][action-pack] for detailed changes.
 
 ### Removals
 
+*   Remove deprecated support to passing absolute paths to `render template:`.
+
 *   Remove deprecated support to passing relative paths to `render file:`.
 
 *   Remove support to template handlers that don't accept two arguments.