diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 0fde582ae..6f702d406 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -98,28 +98,28 @@ jobs:
 
           # JRuby
           - ruby: jruby-9.4
-            gemfile: gemfiles/rails_7.0.gemfile
+            gemfile: gemfiles/rails_7.1.gemfile
             mongodb: '6.0'
             topology: replica_set
           - ruby: jruby-9.4
-            gemfile: gemfiles/rails_6.0.gemfile
+            gemfile: gemfiles/rails_6.1.gemfile
             mongodb: '5.0'
             topology: server
 
           # Field-Level Encryption
           # TODO: support LIBMONGOCRYPT via path
           - ruby: ruby-3.2
-            gemfile: gemfiles/rails_7.0.gemfile
+            gemfile: gemfiles/rails_7.1.gemfile
             mongodb: '6.0'
             topology: sharded_cluster
             fle: helper
           - ruby: ruby-3.1
-            gemfile: gemfiles/rails_6.1.gemfile
+            gemfile: gemfiles/rails_7.0.gemfile
             mongodb: '6.0'
             topology: replica_set
             fle: helper
           - ruby: ruby-2.7
-            gemfile: gemfiles/rails_6.0.gemfile
+            gemfile: gemfiles/rails_6.1.gemfile
             mongodb: '6.0'
             topology: server
             fle: helper
diff --git a/.rubocop_todo.yml b/.rubocop_todo.yml
index c9573dfd4..8b95d8ee4 100644
--- a/.rubocop_todo.yml
+++ b/.rubocop_todo.yml
@@ -1,11 +1,26 @@
 # This configuration was generated by
 # `rubocop --auto-gen-config --exclude-limit 1000`
-# on 2023-08-26 19:42:04 UTC using RuboCop version 1.49.0.
+# on 2024-01-16 04:19:18 UTC using RuboCop version 1.60.0.
 # The point is for the user to remove these configuration records
 # one by one as the offenses are removed from the code base.
 # Note that changes in the inspected code, or installation of new
 # versions of RuboCop, may require this file to be generated again.
 
+# Offense count: 1
+# Configuration parameters: EnforcedStyle, AllowedGems, Include.
+# SupportedStyles: Gemfile, gems.rb, gemspec
+# Include: **/*.gemspec, **/Gemfile, **/gems.rb
+Gemspec/DevelopmentDependencies:
+  Exclude:
+    - 'mongoid.gemspec'
+
+# Offense count: 4
+Lint/SelfAssignment:
+  Exclude:
+    - 'spec/integration/associations/embeds_one_spec.rb'
+    - 'spec/integration/associations/has_one_spec.rb'
+    - 'spec/mongoid/association/embedded/embeds_one/proxy_spec.rb'
+
 # Offense count: 108
 # Configuration parameters: AllowedMethods, AllowedPatterns, CountRepeatedAttributes.
 Metrics/AbcSize:
@@ -25,19 +40,19 @@ Metrics/BlockNesting:
 # Offense count: 17
 # Configuration parameters: CountComments, CountAsOne.
 Metrics/ClassLength:
-  Max: 327
+  Max: 337
 
-# Offense count: 50
+# Offense count: 51
 # Configuration parameters: AllowedMethods, AllowedPatterns.
 Metrics/CyclomaticComplexity:
   Max: 33
 
-# Offense count: 182
+# Offense count: 184
 # Configuration parameters: CountComments, CountAsOne, AllowedMethods, AllowedPatterns.
 Metrics/MethodLength:
   Max: 87
 
-# Offense count: 21
+# Offense count: 22
 # Configuration parameters: CountComments, CountAsOne.
 Metrics/ModuleLength:
   Max: 330
@@ -53,13 +68,13 @@ Metrics/ParameterLists:
 Metrics/PerceivedComplexity:
   Max: 20
 
-# Offense count: 3
+# Offense count: 2
+# This cop supports unsafe autocorrection (--autocorrect-all).
 # Configuration parameters: EnforcedStyleForLeadingUnderscores.
 # SupportedStylesForLeadingUnderscores: disallowed, required, optional
 Naming/MemoizedInstanceVariableName:
   Exclude:
     - 'lib/mongoid/association/relatable.rb'
-    - 'lib/mongoid/document.rb'
 
 # Offense count: 27
 RSpec/AnyInstance:
@@ -80,7 +95,7 @@ RSpec/AnyInstance:
 RSpec/BeforeAfterAll:
   Enabled: false
 
-# Offense count: 833
+# Offense count: 832
 # Configuration parameters: Prefixes, AllowedPatterns.
 # Prefixes: when, with, without
 RSpec/ContextWording:
@@ -176,7 +191,6 @@ RSpec/ContextWording:
     - 'spec/mongoid/errors/invalid_collection_spec.rb'
     - 'spec/mongoid/errors/invalid_includes_spec.rb'
     - 'spec/mongoid/extensions/date_class_mongoize_spec.rb'
-    - 'spec/mongoid/extensions/hash_spec.rb'
     - 'spec/mongoid/extensions/range_spec.rb'
     - 'spec/mongoid/fields/localized_spec.rb'
     - 'spec/mongoid/fields_spec.rb'
@@ -203,7 +217,7 @@ RSpec/ContextWording:
     - 'spec/support/immutable_ids.rb'
     - 'spec/support/shared/time.rb'
 
-# Offense count: 58
+# Offense count: 60
 # Configuration parameters: IgnoredMetadata.
 RSpec/DescribeClass:
   Exclude:
@@ -248,7 +262,7 @@ RSpec/DescribeClass:
     - 'spec/mongoid/railties/console_sandbox_spec.rb'
     - 'spec/mongoid/tasks/database_rake_spec.rb'
 
-# Offense count: 126
+# Offense count: 124
 RSpec/ExpectInHook:
   Exclude:
     - 'spec/integration/associations/embedded_spec.rb'
@@ -291,7 +305,7 @@ RSpec/ExpectInHook:
     - 'spec/mongoid/validatable/presence_spec.rb'
     - 'spec/support/immutable_ids.rb'
 
-# Offense count: 25
+# Offense count: 24
 # Configuration parameters: Include, CustomTransform, IgnoreMethods, SpecSuffixOnly.
 # Include: **/*_spec*rb*, **/spec/**/*
 RSpec/FilePath:
@@ -313,7 +327,6 @@ RSpec/FilePath:
     - 'spec/mongoid/extensions/raw_value_spec.rb'
     - 'spec/mongoid/extensions/stringified_symbol_spec.rb'
     - 'spec/mongoid/loading_spec.rb'
-    - 'spec/mongoid/railties/bson_object_id_serializer_spec.rb'
     - 'spec/mongoid/validatable/associated_spec.rb'
     - 'spec/mongoid/validatable/format_spec.rb'
     - 'spec/mongoid/validatable/length_spec.rb'
@@ -335,7 +348,7 @@ RSpec/IteratedExpectation:
     - 'spec/mongoid/findable_spec.rb'
     - 'spec/mongoid_spec.rb'
 
-# Offense count: 230
+# Offense count: 231
 RSpec/LeakyConstantDeclaration:
   Exclude:
     - 'spec/integration/active_job_spec.rb'
@@ -394,7 +407,7 @@ RSpec/LeakyConstantDeclaration:
     - 'spec/mongoid/validatable/numericality_spec.rb'
     - 'spec/mongoid/validatable/uniqueness_spec.rb'
 
-# Offense count: 499
+# Offense count: 501
 RSpec/LetSetup:
   Exclude:
     - 'spec/integration/matcher_examples_spec.rb'
@@ -468,8 +481,8 @@ RSpec/LetSetup:
     - 'spec/mongoid/touchable_spec.rb'
     - 'spec/mongoid/validatable/uniqueness_spec.rb'
 
-# Offense count: 298
-# Configuration parameters: EnforcedStyle.
+# Offense count: 308
+# Configuration parameters: .
 # SupportedStyles: have_received, receive
 RSpec/MessageSpies:
   EnforcedStyle: receive
@@ -481,7 +494,7 @@ RSpec/MultipleDescribes:
     - 'spec/mongoid/association/embedded/dirty_spec.rb'
     - 'spec/mongoid/tasks/database_rake_spec.rb'
 
-# Offense count: 233
+# Offense count: 244
 # Configuration parameters: EnforcedStyle, IgnoreSharedExamples.
 # SupportedStyles: always, named_only
 RSpec/NamedSubject:
@@ -498,12 +511,12 @@ RSpec/NamedSubject:
     - 'spec/mongoid/extensions/raw_value_spec.rb'
     - 'spec/mongoid/matcher/expression_spec.rb'
 
-# Offense count: 5025
+# Offense count: 5074
 # Configuration parameters: AllowedGroups.
 RSpec/NestedGroups:
   Max: 13
 
-# Offense count: 37
+# Offense count: 31
 # Configuration parameters: AllowedPatterns.
 # AllowedPatterns: ^expect_, ^assert_
 RSpec/NoExpectationExample:
@@ -516,7 +529,6 @@ RSpec/NoExpectationExample:
     - 'spec/mongoid/association/referenced/has_and_belongs_to_many/proxy_spec.rb'
     - 'spec/mongoid/attributes_spec.rb'
     - 'spec/mongoid/collection_configurable_spec.rb'
-    - 'spec/mongoid/criteria/queryable/storable_spec.rb'
     - 'spec/mongoid/document_spec.rb'
     - 'spec/mongoid/errors/mongoid_error_spec.rb'
     - 'spec/mongoid/persistence_context_spec.rb'
@@ -638,7 +650,7 @@ RSpec/ScatteredSetup:
     - 'spec/mongoid/copyable_spec.rb'
     - 'spec/mongoid/persistable/deletable_spec.rb'
 
-# Offense count: 14
+# Offense count: 12
 RSpec/StubbedMock:
   Exclude:
     - 'spec/mongoid/clients_spec.rb'
@@ -648,7 +660,7 @@ RSpec/StubbedMock:
     - 'spec/mongoid/tasks/encryption_spec.rb'
     - 'spec/mongoid/validatable/associated_spec.rb'
 
-# Offense count: 21
+# Offense count: 26
 RSpec/SubjectDeclaration:
   Exclude:
     - 'spec/integration/associations/embedded_dirty_spec.rb'
@@ -656,7 +668,7 @@ RSpec/SubjectDeclaration:
     - 'spec/mongoid/collection_configurable_spec.rb'
     - 'spec/mongoid/contextual/mongo/documents_loader_spec.rb'
 
-# Offense count: 28
+# Offense count: 27
 # Configuration parameters: IgnoreNameless, IgnoreSymbolicNames.
 RSpec/VerifiedDoubles:
   Exclude:
@@ -670,7 +682,6 @@ RSpec/VerifiedDoubles:
     - 'spec/mongoid/contextual/mongo/documents_loader_spec.rb'
     - 'spec/mongoid/errors/validations_spec.rb'
     - 'spec/mongoid/persistence_context_spec.rb'
-    - 'spec/mongoid/tasks/database_rake_spec.rb'
     - 'spec/mongoid/tasks/database_spec.rb'
     - 'spec/mongoid/threaded_spec.rb'
     - 'spec/mongoid/validatable/associated_spec.rb'
@@ -688,7 +699,7 @@ Rails/Date:
     - 'spec/mongoid/persistable/maxable_spec.rb'
     - 'spec/mongoid/persistable/minable_spec.rb'
 
-# Offense count: 21
+# Offense count: 20
 # This cop supports safe autocorrection (--autocorrect).
 # Configuration parameters: EnforceForPrefixed.
 Rails/Delegate:
@@ -700,7 +711,6 @@ Rails/Delegate:
     - 'lib/mongoid/clients/options.rb'
     - 'lib/mongoid/contextual/memory.rb'
     - 'lib/mongoid/contextual/none.rb'
-    - 'lib/mongoid/criteria.rb'
     - 'lib/mongoid/document.rb'
     - 'lib/mongoid/extensions/nil_class.rb'
     - 'lib/mongoid/extensions/symbol.rb'
@@ -727,7 +737,7 @@ Rails/I18nLocaleAssignment:
     - 'spec/mongoid/validatable/uniqueness_spec.rb'
     - 'spec/support/macros.rb'
 
-# Offense count: 129
+# Offense count: 133
 # Configuration parameters: ForbiddenMethods, AllowedMethods.
 # ForbiddenMethods: decrement!, decrement_counter, increment!, increment_counter, insert, insert!, insert_all, insert_all!, toggle!, touch, touch_all, update_all, update_attribute, update_column, update_columns, update_counters, upsert, upsert_all
 Rails/SkipsModelValidations:
@@ -755,23 +765,17 @@ Rails/SkipsModelValidations:
     - 'spec/mongoid/touchable_spec.rb'
     - 'spec/support/models/server.rb'
 
-# Offense count: 159
+# Offense count: 151
 # This cop supports unsafe autocorrection (--autocorrect-all).
 # Configuration parameters: EnforcedStyle.
 # SupportedStyles: strict, flexible
 Rails/TimeZone:
   Exclude:
-    - 'lib/mongoid/criteria/queryable/extensions/date.rb'
     - 'lib/mongoid/criteria/queryable/extensions/string.rb'
-    - 'lib/mongoid/extensions/array.rb'
     - 'lib/mongoid/extensions/date.rb'
-    - 'lib/mongoid/extensions/float.rb'
-    - 'lib/mongoid/extensions/integer.rb'
     - 'lib/mongoid/extensions/string.rb'
     - 'lib/mongoid/extensions/time.rb'
-    - 'lib/mongoid/timestamps/created.rb'
     - 'lib/mongoid/timestamps/updated.rb'
-    - 'lib/mongoid/touchable.rb'
     - 'spec/integration/criteria/date_field_spec.rb'
     - 'spec/integration/criteria/raw_value_spec.rb'
     - 'spec/integration/persistence/range_field_spec.rb'
@@ -800,6 +804,17 @@ Rails/TimeZone:
     - 'spec/mongoid/touchable_spec.rb'
     - 'spec/support/models/post.rb'
 
+# Offense count: 4
+# This cop supports safe autocorrection (--autocorrect).
+# Configuration parameters: AllowOnlyRestArgument, UseAnonymousForwarding, RedundantRestArgumentNames, RedundantKeywordRestArgumentNames, RedundantBlockArgumentNames.
+# RedundantRestArgumentNames: args, arguments
+# RedundantKeywordRestArgumentNames: kwargs, options, opts
+# RedundantBlockArgumentNames: blk, block, proc
+Style/ArgumentsForwarding:
+  Exclude:
+    - 'lib/mongoid/association/referenced/has_many/enumerable.rb'
+    - 'lib/mongoid/association/referenced/has_many/proxy.rb'
+
 # Offense count: 5
 Style/MultilineBlockChain:
   Exclude:
@@ -834,7 +849,55 @@ Style/OptionalBooleanParameter:
     - 'spec/support/models/address.rb'
     - 'spec/support/models/name.rb'
 
-# Offense count: 240
+# Offense count: 38
+# This cop supports safe autocorrection (--autocorrect).
+Style/RedundantCurrentDirectoryInPath:
+  Exclude:
+    - 'Gemfile'
+    - 'gemfiles/bson_master.gemfile'
+    - 'gemfiles/bson_min.gemfile'
+    - 'gemfiles/driver_master.gemfile'
+    - 'gemfiles/driver_min.gemfile'
+    - 'gemfiles/driver_stable.gemfile'
+    - 'gemfiles/rails_6.1.gemfile'
+    - 'gemfiles/rails_7.0.gemfile'
+    - 'gemfiles/rails_7.1.gemfile'
+    - 'gemfiles/rails_master.gemfile'
+    - 'spec/integration/associations/foreign_key_spec.rb'
+    - 'spec/integration/associations/reverse_population_spec.rb'
+    - 'spec/integration/callbacks_spec.rb'
+    - 'spec/mongoid/association/auto_save_spec.rb'
+    - 'spec/mongoid/association/embedded/embedded_in_spec.rb'
+    - 'spec/mongoid/association/embedded/embeds_many_query_spec.rb'
+    - 'spec/mongoid/association/embedded/embeds_one_query_spec.rb'
+    - 'spec/mongoid/association/embedded/embeds_one_spec.rb'
+    - 'spec/mongoid/association/referenced/belongs_to_query_spec.rb'
+    - 'spec/mongoid/association/referenced/belongs_to_spec.rb'
+    - 'spec/mongoid/association/referenced/has_and_belongs_to_many_query_spec.rb'
+    - 'spec/mongoid/association/referenced/has_and_belongs_to_many_spec.rb'
+    - 'spec/mongoid/association/referenced/has_many_query_spec.rb'
+    - 'spec/mongoid/association/referenced/has_many_spec.rb'
+    - 'spec/mongoid/association/referenced/has_one_query_spec.rb'
+    - 'spec/mongoid/association/referenced/has_one_spec.rb'
+    - 'spec/mongoid/attributes/nested_spec.rb'
+    - 'spec/mongoid/attributes_spec.rb'
+    - 'spec/mongoid/clients/transactions_spec.rb'
+    - 'spec/mongoid/copyable_spec.rb'
+    - 'spec/mongoid/criteria/includable_spec.rb'
+    - 'spec/mongoid/criteria/queryable/selectable_spec.rb'
+    - 'spec/mongoid/criteria/queryable/selectable_where_spec.rb'
+    - 'spec/mongoid/interceptable_spec.rb'
+    - 'spec/mongoid/shardable_spec.rb'
+    - 'spec/mongoid/timestamps_spec.rb'
+    - 'spec/mongoid/touchable_spec.rb'
+
+# Offense count: 1
+# This cop supports safe autocorrection (--autocorrect).
+Style/RedundantParentheses:
+  Exclude:
+    - 'lib/mongoid/association/referenced/has_many/enumerable.rb'
+
+# Offense count: 251
 # This cop supports safe autocorrection (--autocorrect).
 # Configuration parameters: AllowHeredoc, AllowURI, URISchemes, IgnoreCopDirectives, AllowedPatterns.
 # URISchemes: http, https
diff --git a/docs/reference/crud.txt b/docs/reference/crud.txt
index bdbdcbfc5..549ade80b 100644
--- a/docs/reference/crud.txt
+++ b/docs/reference/crud.txt
@@ -565,7 +565,7 @@ Mongoid models are reverted. For example:
       person.name # => 'Jake'
       raise 'An exception'
     end
-  rescue Exception
+  rescue StandardError
     person.name # => 'Tom'
   end
 
diff --git a/gemfiles/standard.rb b/gemfiles/standard.rb
index e5c4dd392..fed0abd5f 100644
--- a/gemfiles/standard.rb
+++ b/gemfiles/standard.rb
@@ -8,7 +8,7 @@ def standard_dependencies
   end
 
   group :development, :test do
-    gem 'rubocop', '~> 1.49.0'
+    gem 'rubocop', '~> 1.60.0'
     gem 'rubocop-performance', '~> 1.16.0'
     gem 'rubocop-rails', '~> 2.17.4'
     gem 'rubocop-rake', '~> 0.6.0'
diff --git a/lib/mongoid/association/embedded/embeds_many.rb b/lib/mongoid/association/embedded/embeds_many.rb
index 1aac596f9..d753322ee 100644
--- a/lib/mongoid/association/embedded/embeds_many.rb
+++ b/lib/mongoid/association/embedded/embeds_many.rb
@@ -49,7 +49,7 @@ def setup!
         #
         # @return [ String ] The field name.
         def store_as
-          @store_as ||= (@options[:store_as].try(:to_s) || name.to_s)
+          @store_as ||= @options[:store_as].try(:to_s) || name.to_s
         end
 
         # The key that is used to get the attributes for the associated object.
diff --git a/lib/mongoid/association/embedded/embeds_one.rb b/lib/mongoid/association/embedded/embeds_one.rb
index d2fe242f2..1032d268b 100644
--- a/lib/mongoid/association/embedded/embeds_one.rb
+++ b/lib/mongoid/association/embedded/embeds_one.rb
@@ -45,7 +45,7 @@ def setup!
         #
         # @return [ String ] The field name.
         def store_as
-          @store_as ||= (@options[:store_as].try(:to_s) || name.to_s)
+          @store_as ||= @options[:store_as].try(:to_s) || name.to_s
         end
 
         # The key that is used to get the attributes for the associated object.
diff --git a/lib/mongoid/association/referenced/has_many/buildable.rb b/lib/mongoid/association/referenced/has_many/buildable.rb
index bf69c8369..239b5260d 100644
--- a/lib/mongoid/association/referenced/has_many/buildable.rb
+++ b/lib/mongoid/association/referenced/has_many/buildable.rb
@@ -21,7 +21,7 @@ module Buildable
           #
           # @return [ Mongoid::Document ] A single document.
           def build(base, object, _type = nil, _selected_fields = nil)
-            return (object || []) unless query?(object)
+            return object || [] unless query?(object)
             return [] if object.is_a?(Array)
 
             query_criteria(object, base)
diff --git a/lib/mongoid/association/relatable.rb b/lib/mongoid/association/relatable.rb
index b4ede4984..c408c2770 100644
--- a/lib/mongoid/association/relatable.rb
+++ b/lib/mongoid/association/relatable.rb
@@ -409,7 +409,7 @@ def validate!
           raise Errors::InvalidRelationOption.new(@owner_class, name, opt, self.class::VALID_OPTIONS)
         end
 
-        [name, "#{name}?".to_sym, "#{name}=".to_sym].each do |n|
+        [name, :"#{name}?", :"#{name}="].each do |n|
           next unless Mongoid.destructive_fields.include?(n)
 
           raise Errors::InvalidRelation.new(@owner_class, n)
diff --git a/lib/mongoid/clients/sessions.rb b/lib/mongoid/clients/sessions.rb
index 202cf63c6..e0edfd54c 100644
--- a/lib/mongoid/clients/sessions.rb
+++ b/lib/mongoid/clients/sessions.rb
@@ -193,7 +193,7 @@ def abort_transaction(session)
 
         # Transforms custom options for after_commit and after_rollback callbacks
         # into options for +set_callback+.
-        def set_options_for_callbacks!(args)
+        def set_options_for_callbacks!(args) # rubocop:disable Naming/AccessorMethodName
           options = args.extract_options!
           args << options
 
diff --git a/lib/mongoid/contextual/memory.rb b/lib/mongoid/contextual/memory.rb
index 5576c6753..18593f540 100644
--- a/lib/mongoid/contextual/memory.rb
+++ b/lib/mongoid/contextual/memory.rb
@@ -650,16 +650,16 @@ def apply_sorting
       # @example Compare the two objects.
       #   context.compare(a, b)
       #
-      # @param [ Object ] a The first object.
-      # @param [ Object ] b The second object.
+      # @param [ Object ] value_a The first object.
+      # @param [ Object ] value_b The second object.
       #
       # @return [ Integer ] The comparison value.
-      def compare(a, b)
-        return 0 if a.nil? && b.nil?
-        return 1 if a.nil?
-        return -1 if b.nil?
+      def compare(value_a, value_b)
+        return 0 if value_a.nil? && value_b.nil?
+        return 1 if value_a.nil?
+        return -1 if value_b.nil?
 
-        compare_operand(a) <=> compare_operand(b)
+        compare_operand(value_a) <=> compare_operand(value_b)
       end
 
       # Sort the documents in place.
diff --git a/lib/mongoid/copyable.rb b/lib/mongoid/copyable.rb
index 151ab0767..12c4b1a79 100644
--- a/lib/mongoid/copyable.rb
+++ b/lib/mongoid/copyable.rb
@@ -94,7 +94,7 @@ def process_localized_attributes(klass, attrs)
           attrs["#{name}_translations"] = value
         end
       end
-      klass.embedded_relations.each do |_, association|
+      klass.embedded_relations.each_value do |association|
         next unless attrs.present? && attrs[association.key].present?
 
         if association.is_a?(Association::Embedded::EmbedsMany)
diff --git a/lib/mongoid/criteria/queryable/extensions/string.rb b/lib/mongoid/criteria/queryable/extensions/string.rb
index ee686ad64..9c90e372f 100644
--- a/lib/mongoid/criteria/queryable/extensions/string.rb
+++ b/lib/mongoid/criteria/queryable/extensions/string.rb
@@ -46,7 +46,7 @@ def __mongo_expression__
           #
           # @return [ Hash ] The string as a sort option hash.
           def __sort_option__
-            split(/,/).inject({}) do |hash, spec|
+            split(',').inject({}) do |hash, spec|
               hash.tap do |h|
                 field, direction = spec.strip.split(/\s/)
                 h[field.to_sym] = Mongoid::Criteria::Translator.to_direction(direction)
diff --git a/lib/mongoid/criteria/queryable/extensions/symbol.rb b/lib/mongoid/criteria/queryable/extensions/symbol.rb
index d4d887957..dd195e3ba 100644
--- a/lib/mongoid/criteria/queryable/extensions/symbol.rb
+++ b/lib/mongoid/criteria/queryable/extensions/symbol.rb
@@ -34,7 +34,7 @@ module ClassMethods
             # @param [ String ] additional The additional MongoDB operator.
             def add_key(name, strategy, operator, additional = nil, &block)
               define_method(name) do
-                method = "__#{strategy}__".to_sym
+                method = :"__#{strategy}__"
                 Key.new(self, method, operator, additional, &block)
               end
             end
diff --git a/lib/mongoid/criteria/queryable/mergeable.rb b/lib/mongoid/criteria/queryable/mergeable.rb
index 44871180d..5d4413a79 100644
--- a/lib/mongoid/criteria/queryable/mergeable.rb
+++ b/lib/mongoid/criteria/queryable/mergeable.rb
@@ -420,7 +420,7 @@ def prepare(field, operator, value)
             field = field.to_s
             name = aliases[field] || field
             serializer = serializers[name]
-            value = serializer ? serializer.evolve(value) : value
+            value = serializer.evolve(value) if serializer
           end
           selection = { operator => value }
           negating? ? { '$not' => selection } : selection
diff --git a/lib/mongoid/document.rb b/lib/mongoid/document.rb
index 90d55ae8c..31a879448 100644
--- a/lib/mongoid/document.rb
+++ b/lib/mongoid/document.rb
@@ -409,7 +409,7 @@ def instantiate(attrs = nil, selected_fields = nil, &block)
       # @api private
       def instantiate_document(attrs = nil, selected_fields = nil, options = {}, &block)
         execute_callbacks = options.fetch(:execute_callbacks, Threaded.execute_callbacks?)
-        attributes = attrs&.to_h || {}
+        attributes = attrs.to_h
 
         doc = allocate
         doc.__selected_fields = selected_fields
diff --git a/lib/mongoid/errors/invalid_field.rb b/lib/mongoid/errors/invalid_field.rb
index 0e6584cea..1aa7467d0 100644
--- a/lib/mongoid/errors/invalid_field.rb
+++ b/lib/mongoid/errors/invalid_field.rb
@@ -57,8 +57,7 @@ def origin(klass, name)
       #
       # @return [ Array<String, Integer> ] The location of the method.
       def location(klass, name)
-        @location ||=
-          (klass.instance_method(name).source_location || ['Unknown', 0])
+        @location ||= klass.instance_method(name).source_location || ['Unknown', 0]
       end
     end
   end
diff --git a/lib/mongoid/errors/invalid_relation.rb b/lib/mongoid/errors/invalid_relation.rb
index 0f0ee4ddd..bde75057d 100644
--- a/lib/mongoid/errors/invalid_relation.rb
+++ b/lib/mongoid/errors/invalid_relation.rb
@@ -53,8 +53,7 @@ def origin(klass, name)
       #
       # @return [ Array<String, Integer> ] The location of the method.
       def location(klass, name)
-        @location ||=
-          (klass.instance_method(name).source_location || ['Unknown', 0])
+        @location ||= klass.instance_method(name).source_location || ['Unknown', 0]
       end
     end
   end
diff --git a/lib/mongoid/extensions/object.rb b/lib/mongoid/extensions/object.rb
index dd3540fc6..91e9c42d6 100644
--- a/lib/mongoid/extensions/object.rb
+++ b/lib/mongoid/extensions/object.rb
@@ -83,7 +83,6 @@ def __to_inc__
       end
       Mongoid.deprecate(self, :__to_inc__)
 
-
       # Do or do not, there is no try. -- Yoda.
       #
       # @example Do or do not.
diff --git a/lib/mongoid/fields/foreign_key.rb b/lib/mongoid/fields/foreign_key.rb
index 78b1f9736..9b6f145fc 100644
--- a/lib/mongoid/fields/foreign_key.rb
+++ b/lib/mongoid/fields/foreign_key.rb
@@ -22,8 +22,8 @@ class ForeignKey < Standard
       # @param [ Array ] new_elements The new elements to add.
       # @param [ Array ] old_elements The old elements getting removed.
       def add_atomic_changes(document, name, key, mods, new_elements, old_elements)
-        old = (old_elements || [])
-        new = (new_elements || [])
+        old = old_elements || []
+        new = new_elements || []
         if new.length > old.length
           if new.first(old.length) == old
             document.atomic_array_add_to_sets[key] = new.drop(old.length)
diff --git a/lib/mongoid/fields/standard.rb b/lib/mongoid/fields/standard.rb
index 238a4916b..93509ca84 100644
--- a/lib/mongoid/fields/standard.rb
+++ b/lib/mongoid/fields/standard.rb
@@ -138,8 +138,7 @@ def object_id_field?
       #
       # @return [ true | false ] If the field's default is pre-processed.
       def pre_processed?
-        @pre_processed ||=
-          (options[:pre_processed] || (default_val && !default_val.is_a?(::Proc)))
+        @pre_processed ||= options[:pre_processed] || (default_val && !default_val.is_a?(::Proc))
       end
 
       # Get the type of this field - inferred from the class name.
diff --git a/lib/mongoid/fields/validators/macro.rb b/lib/mongoid/fields/validators/macro.rb
index 83f06f43f..e356071da 100644
--- a/lib/mongoid/fields/validators/macro.rb
+++ b/lib/mongoid/fields/validators/macro.rb
@@ -46,7 +46,7 @@ def validate(klass, name, options)
         # @param [ Symbol ] name The field name.
         # @param [ Hash ] _options The provided options.
         def validate_relation(klass, name, _options = {})
-          [name, "#{name}?".to_sym, "#{name}=".to_sym].each do |n|
+          [name, :"#{name}?", :"#{name}="].each do |n|
             if Mongoid.destructive_fields.include?(n)
               raise Errors::InvalidRelation.new(klass, n)
             end
@@ -65,7 +65,7 @@ def validate_relation(klass, name, _options = {})
         #
         # @api private
         def validate_field_name(klass, name)
-          [name, "#{name}?".to_sym, "#{name}=".to_sym].each do |n|
+          [name, :"#{name}?", :"#{name}="].each do |n|
             if Mongoid.destructive_fields.include?(n)
               raise Errors::InvalidField.new(klass, name, n)
             end
diff --git a/lib/mongoid/interceptable.rb b/lib/mongoid/interceptable.rb
index 85f305ceb..b471ee9eb 100644
--- a/lib/mongoid/interceptable.rb
+++ b/lib/mongoid/interceptable.rb
@@ -176,7 +176,7 @@ def _mongoid_run_child_callbacks(kind, children: nil, &block)
     #
     #  @api private
     def _mongoid_run_child_callbacks_with_around(kind, children: nil, &block)
-      child, *tail = (children || cascadable_children(kind))
+      child, *tail = children || cascadable_children(kind)
       with_children = !Mongoid::Config.prevent_multiple_calls_of_embedded_callbacks
       if child.nil?
         block&.call
@@ -199,12 +199,12 @@ def _mongoid_run_child_callbacks_with_around(kind, children: nil, &block)
     #
     # @api private
     def _mongoid_run_child_callbacks_without_around(kind, children: nil, &block)
-      children = (children || cascadable_children(kind))
+      children ||= cascadable_children(kind)
       callback_list = _mongoid_run_child_before_callbacks(kind, children: children)
       return false if callback_list == false
 
       value = block&.call
-      callback_list.each do |_next_sequence, env|
+      callback_list.each_value do |env|
         env.value &&= value
       end
       return false if _mongoid_run_child_after_callbacks(callback_list: callback_list) == false
diff --git a/lib/mongoid/matcher/elem_match.rb b/lib/mongoid/matcher/elem_match.rb
index 317ec3b1f..ef5e52d9f 100644
--- a/lib/mongoid/matcher/elem_match.rb
+++ b/lib/mongoid/matcher/elem_match.rb
@@ -33,7 +33,7 @@ def matches?(_exists, value, condition)
         else
           # Validate the condition is valid, even though we will never attempt
           # matching it.
-          condition.each do |k, _v|
+          condition.each_key do |k|
             k = k.to_s
             next unless k.start_with?('$')
 
diff --git a/lib/mongoid/railties/database.rake b/lib/mongoid/railties/database.rake
index 8a6d6ae99..d49ce8cc5 100644
--- a/lib/mongoid/railties/database.rake
+++ b/lib/mongoid/railties/database.rake
@@ -84,9 +84,9 @@ namespace :db do
     task remove_indexes: :'mongoid:remove_indexes'
   end
 
-  unless Rake::Task.task_defined?('db:remove_indexes')
-    desc 'Remove indexes specified in Mongoid models'
-    task remove_indexes: 'mongoid:remove_indexes'
+  unless Rake::Task.task_defined?('db:remove_search_indexes')
+    desc 'Remove search indexes specified in Mongoid models'
+    task remove_search_indexes: 'mongoid:remove_search_indexes'
   end
 
   unless Rake::Task.task_defined?('db:shard_collections')
diff --git a/lib/mongoid/tasks/database.rb b/lib/mongoid/tasks/database.rb
index 7f272d361..fff8805a5 100644
--- a/lib/mongoid/tasks/database.rb
+++ b/lib/mongoid/tasks/database.rb
@@ -25,7 +25,7 @@ def create_collections(models = ::Mongoid.models, force: false)
           else
             logger.info("MONGOID: collection options ignored on: #{model}, please define in the root model.")
           end
-        rescue Exception
+        rescue StandardError
           logger.error "error while creating collection for #{model}"
           raise
         end
@@ -250,10 +250,9 @@ def wait_for_search_indexes(models)
         models.each do |model, names|
           model.wait_for_search_indexes(names) do |status|
             if status.ready?
-              puts
               logger.info("MONGOID: Search indexes on #{model} are READY")
             else
-              print '.'
+              print '.' # rubocop:disable Rails/Output
               $stdout.flush
             end
           end
diff --git a/lib/mongoid/warnings.rb b/lib/mongoid/warnings.rb
index ddd357739..67cee0cc6 100644
--- a/lib/mongoid/warnings.rb
+++ b/lib/mongoid/warnings.rb
@@ -19,10 +19,10 @@ class << self
       def warning(id, message)
         singleton_class.class_eval do
           define_method("warn_#{id}") do
-            unless instance_variable_get("@#{id}")
-              Mongoid.logger.warn(message)
-              instance_variable_set("@#{id}", true)
-            end
+            return if instance_variable_get("@#{id}")
+
+            Mongoid.logger.warn(message)
+            instance_variable_set("@#{id}", true)
           end
         end
       end
diff --git a/mongoid.gemspec b/mongoid.gemspec
index 437483e93..cf9a0cf10 100644
--- a/mongoid.gemspec
+++ b/mongoid.gemspec
@@ -26,8 +26,6 @@ Gem::Specification.new do |s|
   }
 
   s.required_ruby_version = '>= 2.7'
-
-  s.required_ruby_version     = '>= 2.7'
   s.required_rubygems_version = '>= 1.3.6'
 
   # activemodel 7.0.0 cannot be used due to Class#descendants issue
diff --git a/spec/integration/callbacks_spec.rb b/spec/integration/callbacks_spec.rb
index c24cb0a1f..665b17401 100644
--- a/spec/integration/callbacks_spec.rb
+++ b/spec/integration/callbacks_spec.rb
@@ -584,7 +584,7 @@ def will_save_change_to_attribute_values_before
   end
 
   context 'cascade callbacks' do
-    ruby_version_gte '3.0'
+    min_ruby_version '3.0'
     require_mri
 
     let(:book) do
diff --git a/spec/mongoid/config/environment_spec.rb b/spec/mongoid/config/environment_spec.rb
index f4b03d93e..8ccbceba0 100644
--- a/spec/mongoid/config/environment_spec.rb
+++ b/spec/mongoid/config/environment_spec.rb
@@ -152,7 +152,7 @@
                 hosts: [localhost]
                 options:
                   auto_encryption_options:
-                    schema_map: #{schema_map.to_yaml.delete_prefix('---').gsub(/\n/, "\n#{' ' * 100}")}
+                    schema_map: #{schema_map.to_yaml.delete_prefix('---').gsub("\n", "\n#{' ' * 100}")}
         FILE
       end
 
diff --git a/spec/mongoid/contextual/mongo_spec.rb b/spec/mongoid/contextual/mongo_spec.rb
index 2e037c4d3..ed5447aae 100644
--- a/spec/mongoid/contextual/mongo_spec.rb
+++ b/spec/mongoid/contextual/mongo_spec.rb
@@ -3693,22 +3693,21 @@
               expect(new_order.reload.name).to eq('Smiths')
             end
           end
-        end
 
           context 'when operation is $push' do
 
             before do
               depeche_mode.update_attribute(:genres, ['electronic'])
               new_order.update_attribute(:genres, ['electronic'])
-              context.update_all("$push" => { genres: 'pop' })
+              context.update_all('$push' => { genres: 'pop' })
             end
 
             it 'updates the first matching document' do
-              expect(depeche_mode.reload.genres).to eq(['electronic', 'pop'])
+              expect(depeche_mode.reload.genres).to eq(%w[electronic pop])
             end
 
             it 'updates the last matching document' do
-              expect(new_order.reload.genres).to eq(['electronic', 'pop'])
+              expect(new_order.reload.genres).to eq(%w[electronic pop])
             end
           end
 
diff --git a/spec/mongoid/criteria/findable_spec.rb b/spec/mongoid/criteria/findable_spec.rb
index 16435ca42..527e75e41 100644
--- a/spec/mongoid/criteria/findable_spec.rb
+++ b/spec/mongoid/criteria/findable_spec.rb
@@ -390,7 +390,6 @@
             expect(found).to include(band_two)
           end
 
-
           context 'when any id does not match' do
 
             context 'when raising a not found error' do
diff --git a/spec/mongoid/document_persistence_context_spec.rb b/spec/mongoid/document_persistence_context_spec.rb
index f8633a7ce..baf2e2fe6 100644
--- a/spec/mongoid/document_persistence_context_spec.rb
+++ b/spec/mongoid/document_persistence_context_spec.rb
@@ -96,7 +96,7 @@
       end
 
       it 'cannot be reloaded without specifying the context' do
-        expect { person.reload }.to raise_error
+        expect { person.reload }.to raise_error(Mongoid::Errors::DocumentNotFound, /Document\(s\) not found for class Person with id\(s\)/)
       end
 
       it 'cannot be updated without specifying the context' do
diff --git a/spec/mongoid/fields/foreign_key_spec.rb b/spec/mongoid/fields/foreign_key_spec.rb
index 1f416fcd3..e5a269b6c 100644
--- a/spec/mongoid/fields/foreign_key_spec.rb
+++ b/spec/mongoid/fields/foreign_key_spec.rb
@@ -511,7 +511,7 @@
     end
     let(:association) { Game.relations['person'] }
 
-    context 'type is Array' do
+    context 'when type is Array' do
       let(:type) { Array }
 
       context 'when the object is a BSON::ObjectId' do
@@ -687,7 +687,7 @@
       end
     end
 
-    context 'type is Set' do
+    context 'when type is Set' do
       let(:type) { Set }
 
       context 'when the object is an Array of BSON::ObjectId' do
@@ -707,7 +707,7 @@
       end
     end
 
-    context 'type is Object' do
+    context 'when type is Object' do
       let(:type) { Object }
 
       context 'when the object is a BSON::ObjectId' do
@@ -743,7 +743,7 @@
       end
 
       context 'when the object is nil' do
-        let(:object) { '' }
+        let(:object) { nil }
 
         it 'returns nil' do
           expect(mongoized).to be_nil
diff --git a/spec/mongoid/interceptable_spec.rb b/spec/mongoid/interceptable_spec.rb
index 86d32b6f3..1453ffb42 100644
--- a/spec/mongoid/interceptable_spec.rb
+++ b/spec/mongoid/interceptable_spec.rb
@@ -2575,12 +2575,10 @@ class TestClass
         end
       end
 
-      before do
+      it 'logs a warning' do
         expect(Mongoid.logger).to receive(:warn).with(/Around callbacks are disabled for embedded documents/).twice.and_call_original
         expect(Mongoid.logger).to receive(:warn).with(/To enable around callbacks for embedded documents/).twice.and_call_original
-      end
 
-      it 'logs a warning' do
         parent.save!
       end
     end
diff --git a/spec/mongoid/interceptable_spec_models.rb b/spec/mongoid/interceptable_spec_models.rb
index fa4c41442..7bad8f01b 100644
--- a/spec/mongoid/interceptable_spec_models.rb
+++ b/spec/mongoid/interceptable_spec_models.rb
@@ -20,18 +20,18 @@ module CallbackTracking
       whens = %i[before after]
       %i[validation save create update].each do |what|
         whens.each do |whn|
-          send("#{whn}_#{what}", "#{whn}_#{what}_stub".to_sym)
+          send("#{whn}_#{what}", :"#{whn}_#{what}_stub")
           define_method("#{whn}_#{what}_stub") do
-            callback_registry&.record_call(self.class, "#{whn}_#{what}".to_sym)
+            callback_registry&.record_call(self.class, :"#{whn}_#{what}")
           end
         end
         next if what == :validation
 
-        send("around_#{what}", "around_#{what}_stub".to_sym)
+        send("around_#{what}", :"around_#{what}_stub")
         define_method("around_#{what}_stub") do |&block|
-          callback_registry&.record_call(self.class, "around_#{what}_open".to_sym)
+          callback_registry&.record_call(self.class, :"around_#{what}_open")
           block.call
-          callback_registry&.record_call(self.class, "around_#{what}_close".to_sym)
+          callback_registry&.record_call(self.class, :"around_#{what}_close")
         end
       end
     end
diff --git a/spec/mongoid/tasks/database_spec.rb b/spec/mongoid/tasks/database_spec.rb
index e402ae8c3..bcfeb3678 100644
--- a/spec/mongoid/tasks/database_spec.rb
+++ b/spec/mongoid/tasks/database_spec.rb
@@ -224,44 +224,32 @@ class Note
     end
 
     context 'when wait is true' do
-      before do
-        allow(described_class).to receive(:wait_for_search_indexes)
-        described_class.create_search_indexes([searchable_model_spy], wait: true)
-      end
-
       it 'invokes both create_search_indexes and wait_for_search_indexes' do
-        expect(searchable_model_spy).to have_received(:create_search_indexes)
-        expect(described_class).to have_received(:wait_for_search_indexes).with(searchable_model_spy => index_names)
+        expect(searchable_model_spy).to receive(:create_search_indexes)
+        expect(described_class).to receive(:wait_for_search_indexes).with(searchable_model_spy => index_names)
+
+        described_class.create_search_indexes([searchable_model_spy], wait: true)
       end
     end
 
     context 'when wait is false' do
-      before do
-        allow(described_class).to receive(:wait_for_search_indexes)
-        described_class.create_search_indexes([searchable_model_spy], wait: false)
-      end
-
       it 'invokes only create_search_indexes' do
-        expect(searchable_model_spy).to have_received(:create_search_indexes)
-        expect(described_class).to_not have_received(:wait_for_search_indexes)
+        expect(searchable_model_spy).to receive(:create_search_indexes)
+        expect(described_class).to_not receive(:wait_for_search_indexes)
+
+        described_class.create_search_indexes([searchable_model_spy], wait: false)
       end
     end
   end
 
   describe '.remove_search_indexes' do
-    before do
+    it 'calls remove_search_indexes on all non-embedded models' do
       models.each do |model|
-        allow(model).to receive(:remove_search_indexes) unless model.embedded?
+        expect(model).to receive(:remove_search_indexes) unless model.embedded?
       end
 
       described_class.remove_search_indexes(models)
     end
-
-    it 'calls remove_search_indexes on all non-embedded models' do
-      models.each do |model|
-        expect(model).to have_received(:remove_search_indexes) unless model.embedded?
-      end
-    end
   end
 
   describe '.undefined_indexes' do
diff --git a/spec/mongoid/validatable/uniqueness_spec.rb b/spec/mongoid/validatable/uniqueness_spec.rb
index b6eff724e..5b7d9582a 100644
--- a/spec/mongoid/validatable/uniqueness_spec.rb
+++ b/spec/mongoid/validatable/uniqueness_spec.rb
@@ -2486,7 +2486,7 @@ class SpanishActor < EuropeanActor
 
     it 'is invalid' do
       subclass_document_with_duplicated_name.tap do |d|
-        expect(d).to be_invalid
+        expect(d).to_not be_valid
         expect(d.errors[:name]).to eq(['has already been taken'])
       end
     end
diff --git a/spec/spec_helper.rb b/spec/spec_helper.rb
index 957d2e833..9314992f4 100644
--- a/spec/spec_helper.rb
+++ b/spec/spec_helper.rb
@@ -112,8 +112,6 @@ class Query
   inflect.singular('address_components', 'address_component')
 end
 
-Time.zone = 'UTC'
-
 I18n.config.enforce_available_locales = false
 
 if %w[yes true 1].include?((ENV['TEST_I18N_FALLBACKS'] || '').downcase)
diff --git a/spec/support/constraints.rb b/spec/support/constraints.rb
index c570549e1..0bd670643 100644
--- a/spec/support/constraints.rb
+++ b/spec/support/constraints.rb
@@ -50,6 +50,16 @@ def without_i18n_fallbacks
     end
   end
 
+  def local_env(env = nil)
+    around do |example|
+      saved_env = ENV.to_h
+      ENV.update(env || yield)
+      example.run
+    ensure
+      ENV.replace(saved_env)
+    end
+  end
+
   def require_mri
     before(:all) do
       unless SpecConfig.instance.mri?