diff --git a/.rubocop.yml b/.rubocop.yml
index d38f97fdb..0f74d985d 100644
--- a/.rubocop.yml
+++ b/.rubocop.yml
@@ -241,6 +241,12 @@ Style/NumericLiterals:
 Style/NumericPredicate:
   Enabled: false
 
+Style/OptionalBooleanParameter:
+  AllowedMethods:
+    - respond_to?
+    - respond_to_missing?
+    - set_parent=
+
 Style/RaiseArgs:
   EnforcedStyle: compact
 
diff --git a/.rubocop_todo.yml b/.rubocop_todo.yml
index 8b95d8ee4..5a1f2ff5e 100644
--- a/.rubocop_todo.yml
+++ b/.rubocop_todo.yml
@@ -830,25 +830,6 @@ Style/OpenStructUse:
     - 'spec/rails/controller_extension/controller_runtime_spec.rb'
     - 'spec/support/rails_mock.rb'
 
-# Offense count: 17
-# Configuration parameters: AllowedMethods.
-# AllowedMethods: respond_to_missing?
-Style/OptionalBooleanParameter:
-  Exclude:
-    - 'lib/mongoid/association/embedded/cyclic.rb'
-    - 'lib/mongoid/association/many.rb'
-    - 'lib/mongoid/association/one.rb'
-    - 'lib/mongoid/association/referenced/has_many/enumerable.rb'
-    - 'lib/mongoid/atomic.rb'
-    - 'lib/mongoid/attributes/dynamic.rb'
-    - 'lib/mongoid/criteria.rb'
-    - 'lib/mongoid/criteria/queryable/extensions/string.rb'
-    - 'lib/mongoid/criteria/queryable/extensions/symbol.rb'
-    - 'lib/mongoid/criteria/queryable/key.rb'
-    - 'lib/mongoid/criteria/queryable/options.rb'
-    - 'spec/support/models/address.rb'
-    - 'spec/support/models/name.rb'
-
 # Offense count: 38
 # This cop supports safe autocorrection (--autocorrect).
 Style/RedundantCurrentDirectoryInPath:
diff --git a/lib/mongoid/association/embedded/cyclic.rb b/lib/mongoid/association/embedded/cyclic.rb
index ba1e7e085..3a7307c50 100644
--- a/lib/mongoid/association/embedded/cyclic.rb
+++ b/lib/mongoid/association/embedded/cyclic.rb
@@ -65,7 +65,7 @@ def recursively_embeds_many(options = {})
           # or its children.
           def recursively_embeds_one(options = {})
             embeds_one(
-              cyclic_child_name(false),
+              cyclic_child_name(many: false),
               options.merge(class_name: name, cyclic: true)
             )
             embedded_in cyclic_parent_name, class_name: name, cyclic: true
@@ -92,7 +92,7 @@ def cyclic_parent_name
           #
           # @return [ String ] "child_" plus the class name underscored in
           #   singular or plural form.
-          def cyclic_child_name(many = true)
+          def cyclic_child_name(many: true)
             :"child_#{name.demodulize.underscore.send(many ? :pluralize : :singularize)}"
           end
         end
diff --git a/lib/mongoid/atomic.rb b/lib/mongoid/atomic.rb
index c0cdcfefd..04a79c6d6 100644
--- a/lib/mongoid/atomic.rb
+++ b/lib/mongoid/atomic.rb
@@ -116,7 +116,7 @@ def atomic_array_add_to_sets
     #   person.atomic_updates(children)
     #
     # @return [ Hash ] The updates and their modifiers.
-    def atomic_updates(_use_indexes = false)
+    def atomic_updates(_use_indexes: false)
       process_flagged_destroys
       mods = Modifiers.new
       generate_atomic_updates(mods, self)
diff --git a/lib/mongoid/criteria/queryable/expandable.rb b/lib/mongoid/criteria/queryable/expandable.rb
index 4427e2e40..85c35eb70 100644
--- a/lib/mongoid/criteria/queryable/expandable.rb
+++ b/lib/mongoid/criteria/queryable/expandable.rb
@@ -37,7 +37,7 @@ module Expandable
         #
         # @return [ Array<String, Object> ] The expanded field and value.
         def expand_one_condition(field, value)
-          kv = field.__expr_part__(value.__expand_complex__, negating?)
+          kv = field.__expr_part__(value.__expand_complex__, negating: negating?)
           [kv.keys.first.to_s, kv.values.first]
         end
 
diff --git a/lib/mongoid/criteria/queryable/extensions/string.rb b/lib/mongoid/criteria/queryable/extensions/string.rb
index 9c90e372f..5656e8640 100644
--- a/lib/mongoid/criteria/queryable/extensions/string.rb
+++ b/lib/mongoid/criteria/queryable/extensions/string.rb
@@ -63,8 +63,8 @@ def __sort_option__
           # @param [ true | false ] negating If the selection should be negated.
           #
           # @return [ Hash ] The selection.
-          def __expr_part__(value, negating = false)
-            ::String.__expr_part__(self, value, negating)
+          def __expr_part__(value, negating: false)
+            ::String.__expr_part__(self, value, negating: negating)
           end
 
           module ClassMethods
@@ -79,7 +79,7 @@ module ClassMethods
             # @param [ true | false ] negating If the selection should be negated.
             #
             # @return [ Hash ] The selection.
-            def __expr_part__(key, value, negating = false)
+            def __expr_part__(key, value, negating: false)
               if negating
                 { key => { "$#{__regexp?(value) ? 'not' : 'ne'}" => value } }
               else
diff --git a/lib/mongoid/criteria/queryable/extensions/symbol.rb b/lib/mongoid/criteria/queryable/extensions/symbol.rb
index dd195e3ba..b4640cfc7 100644
--- a/lib/mongoid/criteria/queryable/extensions/symbol.rb
+++ b/lib/mongoid/criteria/queryable/extensions/symbol.rb
@@ -17,8 +17,8 @@ module Symbol
           # @param [ true | false ] negating If the selection should be negated.
           #
           # @return [ Hash ] The selection.
-          def __expr_part__(value, negating = false)
-            ::String.__expr_part__(self, value, negating)
+          def __expr_part__(value, negating: false)
+            ::String.__expr_part__(self, value, negating: negating)
           end
 
           module ClassMethods
diff --git a/lib/mongoid/criteria/queryable/key.rb b/lib/mongoid/criteria/queryable/key.rb
index c5fbb41cb..1d95eb61c 100644
--- a/lib/mongoid/criteria/queryable/key.rb
+++ b/lib/mongoid/criteria/queryable/key.rb
@@ -131,8 +131,8 @@ def initialize(name, strategy, operator, expanded = nil, &block)
         # @param [ true | false ] negating If the selection should be negated.
         #
         # @return [ Hash ] The raw MongoDB selector.
-        def __expr_part__(object, negating = false)
-          { name.to_s => transform_value(object, negating) }
+        def __expr_part__(object, negating: false)
+          { name.to_s => transform_value(object, negating: negating) }
         end
 
         # Gets the raw selector condition that would be passed to Mongo.
@@ -144,7 +144,7 @@ def __expr_part__(object, negating = false)
         # @param [ true | false ] negating If the selection should be negated.
         #
         # @return [ Hash ] The raw MongoDB selector.
-        def transform_value(value, negating = false)
+        def transform_value(value, negating: false)
           expr = block ? block[value] : value
           expr = { expanded => expr } if expanded
           expr = { operator => expr }
diff --git a/lib/mongoid/criteria/queryable/mergeable.rb b/lib/mongoid/criteria/queryable/mergeable.rb
index 5d4413a79..eb6fdfee7 100644
--- a/lib/mongoid/criteria/queryable/mergeable.rb
+++ b/lib/mongoid/criteria/queryable/mergeable.rb
@@ -261,7 +261,7 @@ def _mongoid_expand_keys(expr)
 
           result = BSON::Document.new
           expr.each do |field, value|
-            field.__expr_part__(value.__expand_complex__, negating?).each do |k, v|
+            field.__expr_part__(value.__expand_complex__, negating: negating?).each do |k, v|
               if (existing = result[k])
                 if existing.is_a?(Hash)
                   # Existing value is an operator.
diff --git a/lib/mongoid/criteria/queryable/optional.rb b/lib/mongoid/criteria/queryable/optional.rb
index d32c123a5..96aba4591 100644
--- a/lib/mongoid/criteria/queryable/optional.rb
+++ b/lib/mongoid/criteria/queryable/optional.rb
@@ -119,7 +119,7 @@ def only(*args)
             options.store(
               :fields,
               args.inject(options[:fields] || {}) { |sub, field| sub.tap { sub[field] = 1 } },
-              false
+              localize: false
             )
           end
         end
@@ -241,7 +241,7 @@ def without(*args)
             options.store(
               :fields,
               args.inject(options[:fields] || {}) { |sub, field| sub.tap { sub[field] = 0 } },
-              false
+              localize: false
             )
           end
         end
diff --git a/lib/mongoid/criteria/queryable/options.rb b/lib/mongoid/criteria/queryable/options.rb
index bd09d5d73..3fa0914bb 100644
--- a/lib/mongoid/criteria/queryable/options.rb
+++ b/lib/mongoid/criteria/queryable/options.rb
@@ -58,8 +58,8 @@ def sort
         # @param [ Object ] value The value to add.
         #
         # @return [ Object ] The stored object.
-        def store(key, value, localize = true)
-          super(key, evolve(value, localize))
+        def store(key, value, localize: true)
+          super(key, evolve(value, localize: localize))
         end
         alias_method :[]=, :store
 
@@ -103,10 +103,10 @@ def __deep_copy__
         # @param [ Object ] value The value to serialize.
         #
         # @return [ Object ] The serialized object.
-        def evolve(value, localize = true)
+        def evolve(value, localize: true)
           case value
           when Hash
-            evolve_hash(value, localize)
+            evolve_hash(value, localize: localize)
           else
             value
           end
@@ -122,7 +122,7 @@ def evolve(value, localize = true)
         # @param [ Hash ] value The hash to serialize.
         #
         # @return [ Object ] The serialized hash.
-        def evolve_hash(value, localize = true)
+        def evolve_hash(value, localize: true)
           value.each_with_object({}) do |(field, val), hash|
             name, serializer = storage_pair(field)
             name = localized_key(name, serializer) if localize
diff --git a/spec/mongoid/criteria/queryable/extensions/symbol_spec.rb b/spec/mongoid/criteria/queryable/extensions/symbol_spec.rb
index 1a508c1f9..0dc55e854 100644
--- a/spec/mongoid/criteria/queryable/extensions/symbol_spec.rb
+++ b/spec/mongoid/criteria/queryable/extensions/symbol_spec.rb
@@ -87,7 +87,7 @@
       context 'with a regexp' do
 
         let(:specified) do
-          :field.__expr_part__(/test/, true)
+          :field.__expr_part__(/test/, negating: true)
         end
 
         it 'returns the symbol with the value negated' do
@@ -99,7 +99,7 @@
       context 'with anything else' do
 
         let(:specified) do
-          :field.__expr_part__('test', true)
+          :field.__expr_part__('test', negating: true)
         end
 
         it 'returns the symbol with the value negated' do