Remove deprecated support to set Rails.application.config.action_dispatch.show_exceptions to true and false

Author: rafaelfranca

actionpack/CHANGELOG.md

@@ -1,3 +1,7 @@
+*   Remove deprecated support to set `Rails.application.config.action_dispatch.show_exceptions` to `true` and `false`.
+
+    *Rafael Mendonça França*
+
 *   Remove deprecated `speaker`, `vibrate`, and `vr` permissions policy directives.
 
     *Rafael Mendonça França*

actionpack/lib/action_dispatch/middleware/exception_wrapper.rb

@@ -186,12 +186,6 @@ def show?(request)
         false
       when :rescuable
         rescue_response?
-      when true
-        ActionDispatch.deprecator.warn("Setting action_dispatch.show_exceptions to true is deprecated. Set to :all instead.")
-        true
-      when false
-        ActionDispatch.deprecator.warn("Setting action_dispatch.show_exceptions to false is deprecated. Set to :none instead.")
-        false
       else
         true
       end

actionpack/test/dispatch/exception_wrapper_test.rb

@@ -225,35 +225,5 @@ def backtrace
 
       assert_equal true, wrapper.show?(request)
     end
-
-    test "#show? emits a deprecation when show_exceptions is true" do
-      exception = RuntimeError.new("")
-      wrapper = ExceptionWrapper.new(nil, exception)
-
-      env = { "action_dispatch.show_exceptions" => true }
-      request = ActionDispatch::Request.new(env)
-
-      msg = "Setting action_dispatch.show_exceptions to true is deprecated. Set to :all instead."
-      result = assert_deprecated(msg, ActionDispatch.deprecator) do
-        wrapper.show?(request)
-      end
-
-      assert_equal true, result
-    end
-
-    test "#show? emits a deprecation when show_exceptions is false" do
-      exception = RuntimeError.new("")
-      wrapper = ExceptionWrapper.new(nil, exception)
-
-      env = { "action_dispatch.show_exceptions" => false }
-      request = ActionDispatch::Request.new(env)
-
-      msg = "Setting action_dispatch.show_exceptions to false is deprecated. Set to :none instead."
-      result = assert_deprecated(msg, ActionDispatch.deprecator) do
-        wrapper.show?(request)
-      end
-
-      assert_equal false, result
-    end
   end
 end

guides/source/7_2_release_notes.md

@@ -60,6 +60,8 @@ Please refer to the [Changelog][action-pack] for detailed changes.
 
 *   Remove deprecated `speaker`, `vibrate`, and `vr` permissions policy directives.
 
+*   Remove deprecated support to set `Rails.application.config.action_dispatch.show_exceptions` to `true` and `false`.
+
 ### Deprecations
 
 *   Deprecate `Rails.application.config.action_controller.allow_deprecated_parameters_hash_equality`.