diff --git a/Library/.rubocop.yml b/Library/.rubocop.yml
index 6b19755d3c..6ca33502f8 100644
--- a/Library/.rubocop.yml
+++ b/Library/.rubocop.yml
@@ -216,6 +216,10 @@ Naming/MethodParameterName:
     merge:
       - AllowedNames
 
+# Allows a nicer API for boolean methods with side effects.
+Naming/PredicateMethod:
+  AllowBangMethods: true
+
 # Both styles are used depending on context,
 # e.g. `sha256` and `something_countable_1`.
 Naming/VariableNumber:
diff --git a/Library/Homebrew/.rubocop.yml b/Library/Homebrew/.rubocop.yml
index d2d463d20d..9ef9b0adc0 100644
--- a/Library/Homebrew/.rubocop.yml
+++ b/Library/Homebrew/.rubocop.yml
@@ -10,7 +10,13 @@ Homebrew/MoveToExtendOS:
     - "{extend,test,requirements}/**/*"
     - "os.rb"
 
-Naming/PredicateName:
+# We don't use Sorbet for RSpec tests so let's disable this there.
+Sorbet/BlockMethodDefinition:
+  Exclude:
+    - test/**/*
+
+# Want to preserve our own API for these methods for now.
+Naming/PredicatePrefix:
   inherit_mode:
     merge:
       - AllowedMethods
diff --git a/Library/Homebrew/api.rb b/Library/Homebrew/api.rb
index a1420cab7e..57051063b5 100644
--- a/Library/Homebrew/api.rb
+++ b/Library/Homebrew/api.rb
@@ -142,7 +142,7 @@ module Homebrew
     end
 
     sig { params(names: T::Array[String], type: String, regenerate: T::Boolean).returns(T::Boolean) }
-    def self.write_names_file(names, type, regenerate:)
+    def self.write_names_file!(names, type, regenerate:)
       names_path = HOMEBREW_CACHE_API/"#{type}_names.txt"
       if !names_path.exist? || regenerate
         names_path.write(names.join("\n"))
diff --git a/Library/Homebrew/api/cask.rb b/Library/Homebrew/api/cask.rb
index df336931a9..c5e6e5a6d0 100644
--- a/Library/Homebrew/api/cask.rb
+++ b/Library/Homebrew/api/cask.rb
@@ -28,7 +28,7 @@ module Homebrew
 
       sig { params(cask: ::Cask::Cask).returns(::Cask::Cask) }
       def self.source_download(cask)
-        path = cask.ruby_source_path.to_s || "Casks/#{cask.token}.rb"
+        path = cask.ruby_source_path.to_s
         sha256 = cask.ruby_source_checksum[:sha256]
         checksum = Checksum.new(sha256) if sha256
         git_head = cask.tap_git_head || "HEAD"
@@ -95,7 +95,7 @@ module Homebrew
       def self.write_names(regenerate: false)
         download_and_cache_data! unless cache.key?("casks")
 
-        Homebrew::API.write_names_file(all_casks.keys, "cask", regenerate:)
+        Homebrew::API.write_names_file!(all_casks.keys, "cask", regenerate:)
       end
     end
   end
diff --git a/Library/Homebrew/api/formula.rb b/Library/Homebrew/api/formula.rb
index 5ef30a0f0a..44f118bbdb 100644
--- a/Library/Homebrew/api/formula.rb
+++ b/Library/Homebrew/api/formula.rb
@@ -129,7 +129,7 @@ module Homebrew
       def self.write_names_and_aliases(regenerate: false)
         download_and_cache_data! unless cache.key?("formulae")
 
-        return unless Homebrew::API.write_names_file(all_formulae.keys, "formula", regenerate:)
+        return unless Homebrew::API.write_names_file!(all_formulae.keys, "formula", regenerate:)
 
         (HOMEBREW_CACHE_API/"formula_aliases.txt").open("w") do |file|
           all_aliases.each do |alias_name, real_name|
diff --git a/Library/Homebrew/bottle.rb b/Library/Homebrew/bottle.rb
index 6aa2aa3f26..a2351fd89c 100644
--- a/Library/Homebrew/bottle.rb
+++ b/Library/Homebrew/bottle.rb
@@ -91,7 +91,7 @@ class Bottle
   def fetch(verify_download_integrity: true, timeout: nil, quiet: false)
     resource.fetch(verify_download_integrity:, timeout:, quiet:)
   rescue DownloadError
-    raise unless fallback_on_error
+    raise unless fallback_on_error?
 
     fetch_tab
     retry
@@ -121,7 +121,7 @@ class Bottle
     begin
       resource.fetch(timeout:, quiet:)
     rescue DownloadError
-      raise unless fallback_on_error
+      raise unless fallback_on_error?
 
       retry
     rescue Resource::BottleManifest::Error
@@ -193,7 +193,7 @@ class Bottle
     specs
   end
 
-  def fallback_on_error
+  def fallback_on_error?
     # Use the default bottle domain as a fallback mirror
     if @resource.url.start_with?(Homebrew::EnvConfig.bottle_domain) &&
        Homebrew::EnvConfig.bottle_domain != HOMEBREW_BOTTLE_DEFAULT_DOMAIN
diff --git a/Library/Homebrew/bundle.rb b/Library/Homebrew/bundle.rb
index 43f8de77a5..5fe4d93c63 100644
--- a/Library/Homebrew/bundle.rb
+++ b/Library/Homebrew/bundle.rb
@@ -41,7 +41,7 @@ module Homebrew
 
       sig { returns(T::Boolean) }
       def mas_installed?
-        @mas_installed ||= which_formula("mas")
+        @mas_installed ||= which_formula?("mas")
       end
 
       sig { returns(T::Boolean) }
@@ -59,7 +59,7 @@ module Homebrew
 
       sig { returns(T::Boolean) }
       def whalebrew_installed?
-        @whalebrew_installed ||= which_formula("whalebrew")
+        @whalebrew_installed ||= which_formula?("whalebrew")
       end
 
       sig { returns(T::Boolean) }
@@ -70,7 +70,7 @@ module Homebrew
       end
 
       sig { params(name: String).returns(T::Boolean) }
-      def which_formula(name)
+      def which_formula?(name)
         formula = Formulary.factory(name)
         ENV["PATH"] = "#{formula.opt_bin}:#{ENV.fetch("PATH", nil)}" if formula.any_version_installed?
         which(name).present?
diff --git a/Library/Homebrew/bundle/cask_installer.rb b/Library/Homebrew/bundle/cask_installer.rb
index c559fa8523..b56a491c2d 100644
--- a/Library/Homebrew/bundle/cask_installer.rb
+++ b/Library/Homebrew/bundle/cask_installer.rb
@@ -18,7 +18,7 @@ module Homebrew
         Homebrew::Bundle::CaskDumper.cask_is_outdated_using_greedy?(name)
       end
 
-      def self.preinstall(name, no_upgrade: false, verbose: false, **options)
+      def self.preinstall!(name, no_upgrade: false, verbose: false, **options)
         if installed_casks.include?(name) && !upgrading?(no_upgrade, name, options)
           puts "Skipping install of #{name} cask. It is already installed." if verbose
           return false
@@ -27,7 +27,7 @@ module Homebrew
         true
       end
 
-      def self.install(name, preinstall: true, no_upgrade: false, verbose: false, force: false, **options)
+      def self.install!(name, preinstall: true, no_upgrade: false, verbose: false, force: false, **options)
         return true unless preinstall
 
         full_name = options.fetch(:full_name, name)
diff --git a/Library/Homebrew/bundle/commands/cleanup.rb b/Library/Homebrew/bundle/commands/cleanup.rb
index 20f99f9208..9eb6847f44 100644
--- a/Library/Homebrew/bundle/commands/cleanup.rb
+++ b/Library/Homebrew/bundle/commands/cleanup.rb
@@ -37,12 +37,12 @@ module Homebrew
             if casks.any?
               args = zap ? ["--zap"] : []
               Kernel.system HOMEBREW_BREW_FILE, "uninstall", "--cask", *args, "--force", *casks
-              puts "Uninstalled #{casks.size} cask#{(casks.size == 1) ? "" : "s"}"
+              puts "Uninstalled #{casks.size} cask#{"s" if casks.size != 1}"
             end
 
             if formulae.any?
               Kernel.system HOMEBREW_BREW_FILE, "uninstall", "--formula", "--force", *formulae
-              puts "Uninstalled #{formulae.size} formula#{(formulae.size == 1) ? "" : "e"}"
+              puts "Uninstalled #{formulae.size} formula#{"e" if formulae.size != 1}"
             end
 
             Kernel.system HOMEBREW_BREW_FILE, "untap", *taps if taps.any?
diff --git a/Library/Homebrew/bundle/commands/install.rb b/Library/Homebrew/bundle/commands/install.rb
index a8ce0bdfd0..03ce65774e 100644
--- a/Library/Homebrew/bundle/commands/install.rb
+++ b/Library/Homebrew/bundle/commands/install.rb
@@ -11,7 +11,7 @@ module Homebrew
         def self.run(global: false, file: nil, no_lock: false, no_upgrade: false, verbose: false, force: false,
                      quiet: false)
           @dsl = Brewfile.read(global:, file:)
-          Homebrew::Bundle::Installer.install(
+          Homebrew::Bundle::Installer.install!(
             @dsl.entries,
             global:, file:, no_lock:, no_upgrade:, verbose:, force:, quiet:,
           ) || exit(1)
diff --git a/Library/Homebrew/bundle/formula_installer.rb b/Library/Homebrew/bundle/formula_installer.rb
index f6d98198be..a2f4792a16 100644
--- a/Library/Homebrew/bundle/formula_installer.rb
+++ b/Library/Homebrew/bundle/formula_installer.rb
@@ -10,12 +10,12 @@ module Homebrew
         @pinned_formulae = nil
       end
 
-      def self.preinstall(name, no_upgrade: false, verbose: false, **options)
-        new(name, options).preinstall(no_upgrade:, verbose:)
+      def self.preinstall!(name, no_upgrade: false, verbose: false, **options)
+        new(name, options).preinstall!(no_upgrade:, verbose:)
       end
 
-      def self.install(name, preinstall: true, no_upgrade: false, verbose: false, force: false, **options)
-        new(name, options).install(preinstall:, no_upgrade:, verbose:, force:)
+      def self.install!(name, preinstall: true, no_upgrade: false, verbose: false, force: false, **options)
+        new(name, options).install!(preinstall:, no_upgrade:, verbose:, force:)
       end
 
       def initialize(name, options = {})
@@ -31,7 +31,7 @@ module Homebrew
         @changed = nil
       end
 
-      def preinstall(no_upgrade: false, verbose: false)
+      def preinstall!(no_upgrade: false, verbose: false)
         if installed? && (self.class.no_upgrade_with_args?(no_upgrade, @name) || !upgradable?)
           puts "Skipping install of #{@name} formula. It is already installed." if verbose
           @changed = nil
@@ -41,7 +41,7 @@ module Homebrew
         true
       end
 
-      def install(preinstall: true, no_upgrade: false, verbose: false, force: false)
+      def install!(preinstall: true, no_upgrade: false, verbose: false, force: false)
         install_result = if preinstall
           install_change_state!(no_upgrade:, verbose:, force:)
         else
@@ -80,9 +80,9 @@ module Homebrew
         return false unless resolve_conflicts!(verbose:)
 
         if installed?
-          upgrade!(verbose:, force:)
+          upgrade_formula!(verbose:, force:)
         else
-          install!(verbose:, force:)
+          install_formula!(verbose:, force:)
         end
       end
 
@@ -282,7 +282,7 @@ module Homebrew
         true
       end
 
-      def install!(verbose:, force:)
+      def install_formula!(verbose:, force:)
         install_args = @args.dup
         install_args << "--force" << "--overwrite" if force
         install_args << "--skip-link" if @link == false
@@ -298,7 +298,7 @@ module Homebrew
         true
       end
 
-      def upgrade!(verbose:, force:)
+      def upgrade_formula!(verbose:, force:)
         upgrade_args = []
         upgrade_args << "--force" if force
         with_args = " with #{upgrade_args.join(" ")}" if upgrade_args.present?
diff --git a/Library/Homebrew/bundle/installer.rb b/Library/Homebrew/bundle/installer.rb
index f136d5951c..61f5ce198b 100644
--- a/Library/Homebrew/bundle/installer.rb
+++ b/Library/Homebrew/bundle/installer.rb
@@ -13,8 +13,8 @@ require "bundle/skipper"
 module Homebrew
   module Bundle
     module Installer
-      def self.install(entries, global: false, file: nil, no_lock: false, no_upgrade: false, verbose: false,
-                       force: false, quiet: false)
+      def self.install!(entries, global: false, file: nil, no_lock: false, no_upgrade: false, verbose: false,
+                        force: false, quiet: false)
         success = 0
         failure = 0
 
@@ -49,7 +49,7 @@ module Homebrew
           next if cls.nil?
           next if Homebrew::Bundle::Skipper.skip? entry
 
-          preinstall = if cls.preinstall(*args, **options, no_upgrade:, verbose:)
+          preinstall = if cls.preinstall!(*args, **options, no_upgrade:, verbose:)
             puts Formatter.success("#{verb} #{name}")
             true
           else
@@ -57,7 +57,7 @@ module Homebrew
             false
           end
 
-          if cls.install(*args, **options,
+          if cls.install!(*args, **options,
                          preinstall:, no_upgrade:, verbose:, force:)
             success += 1
           else
diff --git a/Library/Homebrew/bundle/mac_app_store_installer.rb b/Library/Homebrew/bundle/mac_app_store_installer.rb
index faa49d362a..343b3467ed 100644
--- a/Library/Homebrew/bundle/mac_app_store_installer.rb
+++ b/Library/Homebrew/bundle/mac_app_store_installer.rb
@@ -11,7 +11,7 @@ module Homebrew
         @outdated_app_ids = nil
       end
 
-      def self.preinstall(name, id, no_upgrade: false, verbose: false)
+      def self.preinstall!(name, id, no_upgrade: false, verbose: false)
         unless Bundle.mas_installed?
           puts "Installing mas. It is not currently installed." if verbose
           Bundle.brew("install", "mas", verbose:)
@@ -27,7 +27,7 @@ module Homebrew
         true
       end
 
-      def self.install(name, id, preinstall: true, no_upgrade: false, verbose: false, force: false)
+      def self.install!(name, id, preinstall: true, no_upgrade: false, verbose: false, force: false)
         return true unless preinstall
 
         if app_id_installed?(id)
diff --git a/Library/Homebrew/bundle/tap_installer.rb b/Library/Homebrew/bundle/tap_installer.rb
index 3de2943285..7989a42f2b 100644
--- a/Library/Homebrew/bundle/tap_installer.rb
+++ b/Library/Homebrew/bundle/tap_installer.rb
@@ -4,7 +4,7 @@
 module Homebrew
   module Bundle
     module TapInstaller
-      def self.preinstall(name, verbose: false, **_options)
+      def self.preinstall!(name, verbose: false, **_options)
         if installed_taps.include? name
           puts "Skipping install of #{name} tap. It is already installed." if verbose
           return false
@@ -13,7 +13,7 @@ module Homebrew
         true
       end
 
-      def self.install(name, preinstall: true, verbose: false, force: false, **options)
+      def self.install!(name, preinstall: true, verbose: false, force: false, **options)
         return true unless preinstall
 
         puts "Installing #{name} tap. It is not currently installed." if verbose
diff --git a/Library/Homebrew/bundle/vscode_extension_installer.rb b/Library/Homebrew/bundle/vscode_extension_installer.rb
index 22e10be431..408aa57ffe 100644
--- a/Library/Homebrew/bundle/vscode_extension_installer.rb
+++ b/Library/Homebrew/bundle/vscode_extension_installer.rb
@@ -8,7 +8,7 @@ module Homebrew
         @installed_extensions = nil
       end
 
-      def self.preinstall(name, no_upgrade: false, verbose: false)
+      def self.preinstall!(name, no_upgrade: false, verbose: false)
         if !Bundle.vscode_installed? && Bundle.cask_installed?
           puts "Installing visual-studio-code. It is not currently installed." if verbose
           Bundle.brew("install", "--cask", "visual-studio-code", verbose:)
@@ -24,7 +24,7 @@ module Homebrew
         true
       end
 
-      def self.install(name, preinstall: true, no_upgrade: false, verbose: false, force: false)
+      def self.install!(name, preinstall: true, no_upgrade: false, verbose: false, force: false)
         return true unless preinstall
         return true if extension_installed?(name)
 
diff --git a/Library/Homebrew/bundle/whalebrew_installer.rb b/Library/Homebrew/bundle/whalebrew_installer.rb
index d9dd75387d..a5566c4923 100644
--- a/Library/Homebrew/bundle/whalebrew_installer.rb
+++ b/Library/Homebrew/bundle/whalebrew_installer.rb
@@ -8,7 +8,7 @@ module Homebrew
         @installed_images = nil
       end
 
-      def self.preinstall(name, verbose: false, **_options)
+      def self.preinstall!(name, verbose: false, **_options)
         unless Bundle.whalebrew_installed?
           puts "Installing whalebrew. It is not currently installed." if verbose
           Bundle.brew("install", "--formula", "whalebrew", verbose:)
@@ -23,7 +23,7 @@ module Homebrew
         true
       end
 
-      def self.install(name, preinstall: true, verbose: false, force: false, **_options)
+      def self.install!(name, preinstall: true, verbose: false, force: false, **_options)
         odeprecated "`brew bundle` `whalebrew` support", "using `whalebrew` directly"
         return true unless preinstall
 
diff --git a/Library/Homebrew/cask/installer.rb b/Library/Homebrew/cask/installer.rb
index 4025fadb30..689ba95a0b 100644
--- a/Library/Homebrew/cask/installer.rb
+++ b/Library/Homebrew/cask/installer.rb
@@ -189,7 +189,7 @@ on_request: true)
       when :deprecated
         opoo message_full
       when :disabled
-        GitHub::Actions.puts_annotation_if_env_set(:error, message)
+        GitHub::Actions.puts_annotation_if_env_set!(:error, message)
         raise CaskCannotBeInstalledError.new(@cask, message)
       end
     end
diff --git a/Library/Homebrew/cask/upgrade.rb b/Library/Homebrew/cask/upgrade.rb
index b6a077de52..d289753ce7 100644
--- a/Library/Homebrew/cask/upgrade.rb
+++ b/Library/Homebrew/cask/upgrade.rb
@@ -23,7 +23,7 @@ module Cask
         require_sha:         T.nilable(T::Boolean),
       ).returns(T::Boolean)
     }
-    def self.upgrade_casks(
+    def self.upgrade_casks!(
       *casks,
       args:,
       force: false,
@@ -134,7 +134,7 @@ module Cask
 
       return true if caught_exceptions.empty?
       raise MultipleCaskErrors, caught_exceptions if caught_exceptions.count > 1
-      raise caught_exceptions.fetch(0) if caught_exceptions.count == 1
+      raise caught_exceptions.fetch(0) if caught_exceptions.one?
 
       false
     end
diff --git a/Library/Homebrew/caveats.rb b/Library/Homebrew/caveats.rb
index c473590630..1636add08d 100644
--- a/Library/Homebrew/caveats.rb
+++ b/Library/Homebrew/caveats.rb
@@ -194,7 +194,7 @@ class Caveats
     startup = formula.service.requires_root?
     if Utils::Service.running?(formula)
       s << "To restart #{formula.full_name} after an upgrade:"
-      s << "  #{startup ? "sudo " : ""}brew services restart #{formula.full_name}"
+      s << "  #{"sudo " if startup}brew services restart #{formula.full_name}"
     elsif startup
       s << "To start #{formula.full_name} now and restart at startup:"
       s << "  sudo brew services start #{formula.full_name}"
diff --git a/Library/Homebrew/cmd/install.rb b/Library/Homebrew/cmd/install.rb
index 60c272ac9e..2ef3b7c74b 100644
--- a/Library/Homebrew/cmd/install.rb
+++ b/Library/Homebrew/cmd/install.rb
@@ -259,7 +259,7 @@ module Homebrew
           if !Homebrew::EnvConfig.no_install_upgrade? && installed_casks.any?
             require "cask/upgrade"
 
-            Cask::Upgrade.upgrade_casks(
+            Cask::Upgrade.upgrade_casks!(
               *installed_casks,
               force:          args.force?,
               dry_run:        args.dry_run?,
diff --git a/Library/Homebrew/cmd/nodenv-sync.rb b/Library/Homebrew/cmd/nodenv-sync.rb
index 6c6d1d61de..0e9a704b29 100644
--- a/Library/Homebrew/cmd/nodenv-sync.rb
+++ b/Library/Homebrew/cmd/nodenv-sync.rb
@@ -52,8 +52,8 @@ module Homebrew
 
         version = Keg.new(path).version
         major_version = version.major.to_i
-        minor_version = version.minor.to_i || 0
-        patch_version = version.patch.to_i || 0
+        minor_version = version.minor.to_i
+        patch_version = version.patch.to_i
 
         minor_version_range, patch_version_range = if Homebrew::EnvConfig.env_sync_strict?
           # Only create symlinks for the exact installed patch version.
diff --git a/Library/Homebrew/cmd/rbenv-sync.rb b/Library/Homebrew/cmd/rbenv-sync.rb
index 41aa7a6f9a..6165e2b223 100644
--- a/Library/Homebrew/cmd/rbenv-sync.rb
+++ b/Library/Homebrew/cmd/rbenv-sync.rb
@@ -53,7 +53,7 @@ module Homebrew
         version = Keg.new(path).version
         major_version = version.major.to_i
         minor_version = version.minor.to_i
-        patch_version = version.patch.to_i || 0
+        patch_version = version.patch.to_i
 
         patch_version_range = if Homebrew::EnvConfig.env_sync_strict?
           # Only create symlinks for the exact installed patch version.
diff --git a/Library/Homebrew/cmd/search.rb b/Library/Homebrew/cmd/search.rb
index 4100e50b9f..92e700aeeb 100644
--- a/Library/Homebrew/cmd/search.rb
+++ b/Library/Homebrew/cmd/search.rb
@@ -65,7 +65,7 @@ module Homebrew
 
       sig { override.void }
       def run
-        return if search_package_manager
+        return if search_package_manager!
 
         query = args.named.join(" ")
         string_or_regex = Search.query_regexp(query)
@@ -108,7 +108,7 @@ module Homebrew
       end
 
       sig { returns(T::Boolean) }
-      def search_package_manager
+      def search_package_manager!
         package_manager = PACKAGE_MANAGERS.find { |name,| args.public_send(:"#{name}?") }
         return false if package_manager.nil?
 
diff --git a/Library/Homebrew/cmd/upgrade.rb b/Library/Homebrew/cmd/upgrade.rb
index bf33a9416f..63a3eb4b6a 100644
--- a/Library/Homebrew/cmd/upgrade.rb
+++ b/Library/Homebrew/cmd/upgrade.rb
@@ -137,8 +137,8 @@ module Homebrew
 
         formulae = Homebrew::Attestation.sort_formulae_for_install(formulae) if Homebrew::Attestation.enabled?
 
-        upgrade_outdated_formulae(formulae) unless only_upgrade_casks
-        upgrade_outdated_casks(casks) unless only_upgrade_formulae
+        upgrade_outdated_formulae!(formulae) unless only_upgrade_casks
+        upgrade_outdated_casks!(casks) unless only_upgrade_formulae
 
         Cleanup.periodic_clean!(dry_run: args.dry_run?)
 
@@ -148,7 +148,7 @@ module Homebrew
       private
 
       sig { params(formulae: T::Array[Formula]).returns(T::Boolean) }
-      def upgrade_outdated_formulae(formulae)
+      def upgrade_outdated_formulae!(formulae)
         return false if args.cask?
 
         if args.build_from_source?
@@ -280,12 +280,12 @@ module Homebrew
       end
 
       sig { params(casks: T::Array[Cask::Cask]).returns(T::Boolean) }
-      def upgrade_outdated_casks(casks)
+      def upgrade_outdated_casks!(casks)
         return false if args.formula?
 
         Install.ask_casks casks if args.ask?
 
-        Cask::Upgrade.upgrade_casks(
+        Cask::Upgrade.upgrade_casks!(
           *casks,
           force:               args.force?,
           greedy:              args.greedy?,
diff --git a/Library/Homebrew/dev-cmd/bottle.rb b/Library/Homebrew/dev-cmd/bottle.rb
index d512b65190..cb24586918 100644
--- a/Library/Homebrew/dev-cmd/bottle.rb
+++ b/Library/Homebrew/dev-cmd/bottle.rb
@@ -723,7 +723,7 @@ module Homebrew
           all_bottle = !args.no_all_checks? &&
                        (!old_bottle_spec_matches || bottle.rebuild != old_bottle_spec.rebuild) &&
                        tag_hashes.count > 1 &&
-                       tag_hashes.uniq { |tag_hash| "#{tag_hash["cellar"]}-#{tag_hash["sha256"]}" }.count == 1
+                       tag_hashes.uniq { |tag_hash| "#{tag_hash["cellar"]}-#{tag_hash["sha256"]}" }.one?
 
           old_all_bottle = old_bottle_spec.tag?(Utils::Bottles.tag(:all))
           if !all_bottle && old_all_bottle && !args.no_all_checks?
diff --git a/Library/Homebrew/dev-cmd/bump-formula-pr.rb b/Library/Homebrew/dev-cmd/bump-formula-pr.rb
index 1a780ea343..25a0e3c5eb 100644
--- a/Library/Homebrew/dev-cmd/bump-formula-pr.rb
+++ b/Library/Homebrew/dev-cmd/bump-formula-pr.rb
@@ -589,7 +589,7 @@ module Homebrew
             #{leading_spaces}resource "#{resource.name}" do
             #{leading_spaces}  url "#{new_url}"#{new_mirrors.map { |m| "\n#{leading_spaces}  mirror \"#{m}\"" }.join}
             #{leading_spaces}  sha256 "#{new_hash}"
-            #{forced_version ? "#{leading_spaces}  version \"#{version}\"\n" : ""}
+            #{"#{leading_spaces}  version \"#{version}\"\n" if forced_version}
             #{leading_spaces}  livecheck do
             #{leading_spaces}    formula :parent
             #{leading_spaces}  end
diff --git a/Library/Homebrew/dev-cmd/bump.rb b/Library/Homebrew/dev-cmd/bump.rb
index 7b7a530f9b..0da3372b6a 100644
--- a/Library/Homebrew/dev-cmd/bump.rb
+++ b/Library/Homebrew/dev-cmd/bump.rb
@@ -180,7 +180,7 @@ module Homebrew
 
         formulae_and_casks.each_with_index do |formula_or_cask, i|
           puts if i.positive?
-          next if skip_ineligible_formulae(formula_or_cask)
+          next if skip_ineligible_formulae!(formula_or_cask)
 
           use_full_name = args.full_name? || ambiguous_names.include?(formula_or_cask)
           name = Livecheck.package_or_resource_name(formula_or_cask, full_name: use_full_name)
@@ -204,7 +204,7 @@ module Homebrew
       sig {
         params(formula_or_cask: T.any(Formula, Cask::Cask)).returns(T::Boolean)
       }
-      def skip_ineligible_formulae(formula_or_cask)
+      def skip_ineligible_formulae!(formula_or_cask)
         if formula_or_cask.is_a?(Formula)
           skip = formula_or_cask.disabled? || formula_or_cask.head_only?
           name = formula_or_cask.name
diff --git a/Library/Homebrew/diagnostic.rb b/Library/Homebrew/diagnostic.rb
index c08e371aa5..323ddb553e 100644
--- a/Library/Homebrew/diagnostic.rb
+++ b/Library/Homebrew/diagnostic.rb
@@ -587,7 +587,7 @@ module Homebrew
         EOS
       end
 
-      def __check_linked_brew(formula)
+      def __check_linked_brew!(formula)
         formula.installed_prefixes.each do |prefix|
           prefix.find do |src|
             next if src == prefix
diff --git a/Library/Homebrew/download_strategy.rb b/Library/Homebrew/download_strategy.rb
index 2b5f46217a..e744d4d6ce 100644
--- a/Library/Homebrew/download_strategy.rb
+++ b/Library/Homebrew/download_strategy.rb
@@ -341,7 +341,7 @@ class AbstractFileDownloadStrategy < AbstractDownloadStrategy
                         .reject { |path| path.extname.end_with?(".incomplete") }
 
     @cached_location = T.let(
-      if downloads.count == 1
+      if downloads.one?
         downloads.fetch(0)
       else
         HOMEBREW_CACHE/"downloads/#{url_sha256}--#{Utils.safe_filename(resolved_basename)}"
diff --git a/Library/Homebrew/extend/file/atomic.rb b/Library/Homebrew/extend/file/atomic.rb
index b57c9cc850..d0ae305a3c 100644
--- a/Library/Homebrew/extend/file/atomic.rb
+++ b/Library/Homebrew/extend/file/atomic.rb
@@ -20,11 +20,11 @@ class File
   #     file.write('hello')
   #   end
   sig {
-    type_parameters(:out).params(
+    type_parameters(:Out).params(
       file_name: T.any(Pathname, String),
       temp_dir:  String,
-      _block:    T.proc.params(arg0: Tempfile).returns(T.type_parameter(:out)),
-    ).returns(T.type_parameter(:out))
+      _block:    T.proc.params(arg0: Tempfile).returns(T.type_parameter(:Out)),
+    ).returns(T.type_parameter(:Out))
   }
   def self.atomic_write(file_name, temp_dir = dirname(file_name), &_block)
     require "tempfile" unless defined?(Tempfile)
diff --git a/Library/Homebrew/extend/hash/deep_merge.rbi b/Library/Homebrew/extend/hash/deep_merge.rbi
index a2a316e1b5..8d8413f7e8 100644
--- a/Library/Homebrew/extend/hash/deep_merge.rbi
+++ b/Library/Homebrew/extend/hash/deep_merge.rbi
@@ -3,18 +3,18 @@
 
 class Hash
   sig {
-    type_parameters(:k2).params(
-      other_hash: T::Hash[T.type_parameter(:k2), T.untyped],
+    type_parameters(:K2).params(
+      other_hash: T::Hash[T.type_parameter(:K2), T.untyped],
       block:      T.nilable(T.proc.params(k: T.untyped, v1: T.untyped, v2: T.untyped).returns(T.untyped)),
-    ).returns(T::Hash[T.any(Hash::K, T.type_parameter(:k2)), T.untyped])
+    ).returns(T::Hash[T.any(Hash::K, T.type_parameter(:K2)), T.untyped])
   }
   def deep_merge(other_hash, &block); end
 
   sig {
-    type_parameters(:k2).params(
-      other_hash: T::Hash[T.type_parameter(:k2), T.untyped],
+    type_parameters(:K2).params(
+      other_hash: T::Hash[T.type_parameter(:K2), T.untyped],
       block:      T.nilable(T.proc.params(k: T.untyped, v1: T.untyped, v2: T.untyped).returns(T.untyped)),
-    ).returns(T::Hash[T.any(Hash::K, T.type_parameter(:k2)), T.untyped])
+    ).returns(T::Hash[T.any(Hash::K, T.type_parameter(:K2)), T.untyped])
   }
   def deep_merge!(other_hash, &block); end
 end
diff --git a/Library/Homebrew/extend/hash/deep_transform_values.rbi b/Library/Homebrew/extend/hash/deep_transform_values.rbi
index 8eece3e2dc..f2edfb2c81 100644
--- a/Library/Homebrew/extend/hash/deep_transform_values.rbi
+++ b/Library/Homebrew/extend/hash/deep_transform_values.rbi
@@ -2,16 +2,16 @@
 
 class Hash
   sig {
-    type_parameters(:out).params(
-      block: T.proc.params(o: Hash::V).returns(T.type_parameter(:out)),
-    ).returns(T::Hash[Hash::K, T.type_parameter(:out)])
+    type_parameters(:Out).params(
+      block: T.proc.params(o: Hash::V).returns(T.type_parameter(:Out)),
+    ).returns(T::Hash[Hash::K, T.type_parameter(:Out)])
   }
   def deep_transform_values(&block); end
 
   sig {
-    type_parameters(:out).params(
-      block: T.proc.params(o: Hash::V).returns(T.type_parameter(:out)),
-    ).returns(T::Hash[Hash::K, T.type_parameter(:out)])
+    type_parameters(:Out).params(
+      block: T.proc.params(o: Hash::V).returns(T.type_parameter(:Out)),
+    ).returns(T::Hash[Hash::K, T.type_parameter(:Out)])
   }
   def deep_transform_values!(&block); end
 end
diff --git a/Library/Homebrew/extend/hash/keys.rbi b/Library/Homebrew/extend/hash/keys.rbi
index ed4e6a6eb8..3cafb20b6a 100644
--- a/Library/Homebrew/extend/hash/keys.rbi
+++ b/Library/Homebrew/extend/hash/keys.rbi
@@ -3,16 +3,16 @@
 
 class Hash
   sig {
-    type_parameters(:out).params(
-      block: T.proc.params(o: K).returns(T.type_parameter(:out)),
-    ).returns(T::Hash[T.type_parameter(:out), V])
+    type_parameters(:Out).params(
+      block: T.proc.params(o: K).returns(T.type_parameter(:Out)),
+    ).returns(T::Hash[T.type_parameter(:Out), V])
   }
   def deep_transform_keys(&block); end
 
   sig {
-    type_parameters(:out).params(
-      block: T.proc.params(o: K).returns(T.type_parameter(:out)),
-    ).returns(T::Hash[T.type_parameter(:out), V])
+    type_parameters(:Out).params(
+      block: T.proc.params(o: K).returns(T.type_parameter(:Out)),
+    ).returns(T::Hash[T.type_parameter(:Out), V])
   }
   def deep_transform_keys!(&block); end
 
diff --git a/Library/Homebrew/extend/kernel.rb b/Library/Homebrew/extend/kernel.rb
index 138636011d..01eeef4e3d 100644
--- a/Library/Homebrew/extend/kernel.rb
+++ b/Library/Homebrew/extend/kernel.rb
@@ -80,7 +80,7 @@ module Kernel
   sig { params(message: T.any(String, Exception)).void }
   def opoo(message)
     require "utils/github/actions"
-    return if GitHub::Actions.puts_annotation_if_env_set(:warning, message.to_s)
+    return if GitHub::Actions.puts_annotation_if_env_set!(:warning, message.to_s)
 
     require "utils/formatter"
 
@@ -106,7 +106,7 @@ module Kernel
   sig { params(message: T.any(String, Exception)).void }
   def onoe(message)
     require "utils/github/actions"
-    return if GitHub::Actions.puts_annotation_if_env_set(:error, message.to_s)
+    return if GitHub::Actions.puts_annotation_if_env_set!(:error, message.to_s)
 
     require "utils/formatter"
 
@@ -204,7 +204,7 @@ module Kernel
     disable = true if disable_for_developers && Homebrew::EnvConfig.developer?
     if disable || Homebrew.raise_deprecation_exceptions?
       require "utils/github/actions"
-      GitHub::Actions.puts_annotation_if_env_set(:error, message, file:, line:)
+      GitHub::Actions.puts_annotation_if_env_set!(:error, message, file:, line:)
       exception = MethodDeprecatedError.new(message)
       exception.set_backtrace(backtrace)
       raise exception
diff --git a/Library/Homebrew/extend/os/linux/keg_relocate.rb b/Library/Homebrew/extend/os/linux/keg_relocate.rb
index 6b53cd5e15..42e32dbf65 100644
--- a/Library/Homebrew/extend/os/linux/keg_relocate.rb
+++ b/Library/Homebrew/extend/os/linux/keg_relocate.rb
@@ -12,12 +12,12 @@ class Keg
 
     elf_files.each do |file|
       file.ensure_writable do
-        change_rpath(file, old_prefix, new_prefix)
+        change_rpath!(file, old_prefix, new_prefix)
       end
     end
   end
 
-  def change_rpath(file, old_prefix, new_prefix)
+  def change_rpath!(file, old_prefix, new_prefix)
     return false if !file.elf? || !file.dynamic_elf?
 
     updated = {}
diff --git a/Library/Homebrew/extend/os/linux/requirements/xcode_requirement.rb b/Library/Homebrew/extend/os/linux/requirements/xcode_requirement.rb
index 296663fbca..2f730ef3c1 100644
--- a/Library/Homebrew/extend/os/linux/requirements/xcode_requirement.rb
+++ b/Library/Homebrew/extend/os/linux/requirements/xcode_requirement.rb
@@ -5,7 +5,7 @@ require "requirement"
 
 class XcodeRequirement < Requirement
   sig { returns(T::Boolean) }
-  def xcode_installed_version
+  def xcode_installed_version!
     true
   end
 end
diff --git a/Library/Homebrew/extend/os/mac/hardware/cpu.rb b/Library/Homebrew/extend/os/mac/hardware/cpu.rb
index ce1b5bf9ae..1c64dd1971 100644
--- a/Library/Homebrew/extend/os/mac/hardware/cpu.rb
+++ b/Library/Homebrew/extend/os/mac/hardware/cpu.rb
@@ -38,7 +38,7 @@ module OS
           # conflict between what `uname` reports and the underlying `sysctl` flags,
           # since the `sysctl` flags don't change behaviour under Rosetta 2.
           def in_rosetta2?
-            ::Hardware::CPU.sysctl_bool("sysctl.proc_translated")
+            ::Hardware::CPU.sysctl_bool!("sysctl.proc_translated")
           end
 
           def features
@@ -50,7 +50,7 @@ module OS
           end
 
           def sse4?
-            ::Hardware::CPU.sysctl_bool("hw.optional.sse4_1")
+            ::Hardware::CPU.sysctl_bool!("hw.optional.sse4_1")
           end
         end
       end
@@ -68,41 +68,41 @@ module Hardware
       end
 
       def aes?
-        sysctl_bool("hw.optional.aes")
+        sysctl_bool!("hw.optional.aes")
       end
 
       def altivec?
-        sysctl_bool("hw.optional.altivec")
+        sysctl_bool!("hw.optional.altivec")
       end
 
       def avx?
-        sysctl_bool("hw.optional.avx1_0")
+        sysctl_bool!("hw.optional.avx1_0")
       end
 
       def avx2?
-        sysctl_bool("hw.optional.avx2_0")
+        sysctl_bool!("hw.optional.avx2_0")
       end
 
       def sse3?
-        sysctl_bool("hw.optional.sse3")
+        sysctl_bool!("hw.optional.sse3")
       end
 
       def ssse3?
-        sysctl_bool("hw.optional.supplementalsse3")
+        sysctl_bool!("hw.optional.supplementalsse3")
       end
 
       def sse4_2?
-        sysctl_bool("hw.optional.sse4_2")
+        sysctl_bool!("hw.optional.sse4_2")
       end
 
       # NOTE: This is more reliable than checking `uname`. `sysctl` returns
       #       the right answer even when running in Rosetta 2.
       def physical_cpu_arm64?
-        sysctl_bool("hw.optional.arm64")
+        sysctl_bool!("hw.optional.arm64")
       end
 
       def virtualized?
-        sysctl_bool("kern.hv_vmm_present")
+        sysctl_bool!("kern.hv_vmm_present")
       end
 
       def arm_family
@@ -173,7 +173,7 @@ module Hardware
         end
       end
 
-      def sysctl_bool(key)
+      def sysctl_bool!(key)
         sysctl_int(key) == 1
       end
 
diff --git a/Library/Homebrew/formula_installer.rb b/Library/Homebrew/formula_installer.rb
index 241863355f..05b1bccf21 100644
--- a/Library/Homebrew/formula_installer.rb
+++ b/Library/Homebrew/formula_installer.rb
@@ -306,7 +306,7 @@ class FormulaInstaller
         if force?
           opoo message
         else
-          GitHub::Actions.puts_annotation_if_env_set(:error, message)
+          GitHub::Actions.puts_annotation_if_env_set!(:error, message)
           raise CannotInstallFormulaError, message
         end
       end
diff --git a/Library/Homebrew/formulary.rb b/Library/Homebrew/formulary.rb
index 3c1f83d0be..4e75312a8d 100644
--- a/Library/Homebrew/formulary.rb
+++ b/Library/Homebrew/formulary.rb
@@ -79,6 +79,9 @@ module Formulary
   end
 
   module PathnameWriteMkpath
+    # TODO: migrate away from refinements here, they don't play nicely with
+    # Sorbet, when we migrate to `typed: strict`
+    # rubocop:todo Sorbet/BlockMethodDefinition
     refine Pathname do
       def write(content, offset = nil, **open_args)
         T.bind(self, Pathname)
@@ -89,6 +92,7 @@ module Formulary
         super
       end
     end
+    # rubocop:enable Sorbet/BlockMethodDefinition
   end
 
   using PathnameWriteMkpath
@@ -133,7 +137,7 @@ module Formulary
     rescue NameError => e
       class_list = mod.constants
                       .map { |const_name| mod.const_get(const_name) }
-                      .select { |const| const.is_a?(Class) }
+                      .grep(Class)
       new_exception = FormulaClassUnavailableError.new(name, path, class_name, class_list)
       remove_const(namespace)
       raise new_exception, "", e.backtrace
@@ -170,7 +174,7 @@ module Formulary
   end
 
   sig { params(name: String, flags: T::Array[String]).returns(T.class_of(Formula)) }
-  def self.load_formula_from_api(name, flags:)
+  def self.load_formula_from_api!(name, flags:)
     namespace = :"FormulaNamespaceAPI#{namespace_key(name)}"
 
     mod = Module.new
@@ -264,6 +268,9 @@ module Formulary
       end
     end
 
+    # TODO: migrate away from this inline class here, they don't play nicely with
+    # Sorbet, when we migrate to `typed: strict`
+    # rubocop:todo Sorbet/BlockMethodDefinition
     klass = Class.new(::Formula) do
       @loaded_from_api = true
 
@@ -431,6 +438,7 @@ module Formulary
         Checksum.new(checksum) if checksum
       end
     end
+    # rubocop:enable Sorbet/BlockMethodDefinition
 
     mod.const_set(class_name, klass)
 
@@ -902,7 +910,7 @@ module Formulary
     private
 
     def load_from_api(flags:)
-      Formulary.load_formula_from_api(name, flags:)
+      Formulary.load_formula_from_api!(name, flags:)
     end
   end
 
diff --git a/Library/Homebrew/ignorable.rb b/Library/Homebrew/ignorable.rb
index 038bebd380..10d7ffe5c3 100644
--- a/Library/Homebrew/ignorable.rb
+++ b/Library/Homebrew/ignorable.rb
@@ -19,6 +19,9 @@ module Ignorable
   end
 
   def self.hook_raise
+    # TODO: migrate away from this inline class here, they don't play nicely with
+    # Sorbet, when we migrate to `typed: strict`
+    # rubocop:todo Sorbet/BlockMethodDefinition
     Object.class_eval do
       alias_method :original_raise, :raise
 
@@ -37,6 +40,7 @@ module Ignorable
 
       alias_method :fail, :raise
     end
+    # rubocop:enable Sorbet/BlockMethodDefinition
 
     return unless block_given?
 
diff --git a/Library/Homebrew/install.rb b/Library/Homebrew/install.rb
index 24676a26ea..807af20492 100644
--- a/Library/Homebrew/install.rb
+++ b/Library/Homebrew/install.rb
@@ -465,9 +465,7 @@ module Homebrew
 
       def collect_dependencies(formulae_installer, dependants)
         formulae_dependencies = formulae_installer.flat_map do |f|
-          [f.formula, f.compute_dependencies.flatten.filter do |c|
-            c.is_a? Dependency
-          end.flat_map(&:to_formula)]
+          [f.formula, f.compute_dependencies.flatten.grep(Dependency).flat_map(&:to_formula)]
         end.flatten.uniq
         formulae_dependencies.concat(dependants.upgradeable) if dependants&.upgradeable
         formulae_dependencies.uniq
diff --git a/Library/Homebrew/keg_relocate.rb b/Library/Homebrew/keg_relocate.rb
index 5b54c45bfa..c4e6621d8a 100644
--- a/Library/Homebrew/keg_relocate.rb
+++ b/Library/Homebrew/keg_relocate.rb
@@ -35,7 +35,7 @@ class Keg
     end
 
     sig { params(text: String).returns(T::Boolean) }
-    def replace_text(text)
+    def replace_text!(text)
       replacements = @replacement_map.values.to_h
 
       sorted_keys = replacements.keys.sort_by do |key|
@@ -143,7 +143,7 @@ class Keg
     files.map { path.join(_1) }.group_by { |f| f.stat.ino }.each_value do |first, *rest|
       s = first.open("rb", &:read)
 
-      next unless relocation.replace_text(s)
+      next unless relocation.replace_text!(s)
 
       changed_files += [first, *rest].map { |file| file.relative_path_from(path) }
 
diff --git a/Library/Homebrew/livecheck/skip_conditions.rb b/Library/Homebrew/livecheck/skip_conditions.rb
index d1c5b7cc68..4ed474dea6 100644
--- a/Library/Homebrew/livecheck/skip_conditions.rb
+++ b/Library/Homebrew/livecheck/skip_conditions.rb
@@ -323,7 +323,7 @@ module Homebrew
         end
         return unless name
 
-        if skip_hash[:messages].is_a?(Array) && skip_hash[:messages].count.positive?
+        if skip_hash[:messages].is_a?(Array) && skip_hash[:messages].any?
           # TODO: Handle multiple messages, only if needed in the future
           if skip_hash[:status] == "skipped"
             puts "#{Tty.red}#{name}#{Tty.reset}: skipped - #{skip_hash[:messages][0]}"
diff --git a/Library/Homebrew/requirements/xcode_requirement.rb b/Library/Homebrew/requirements/xcode_requirement.rb
index b5514b925a..c0c9134238 100644
--- a/Library/Homebrew/requirements/xcode_requirement.rb
+++ b/Library/Homebrew/requirements/xcode_requirement.rb
@@ -12,7 +12,7 @@ class XcodeRequirement < Requirement
 
   satisfy(build_env: false) do
     T.bind(self, XcodeRequirement)
-    xcode_installed_version
+    xcode_installed_version!
   end
 
   sig { params(tags: T::Array[String]).void }
@@ -23,7 +23,7 @@ class XcodeRequirement < Requirement
   end
 
   sig { returns(T::Boolean) }
-  def xcode_installed_version
+  def xcode_installed_version!
     return false unless MacOS::Xcode.installed?
     return true unless @version
 
diff --git a/Library/Homebrew/rubocops/extend/formula_cop.rb b/Library/Homebrew/rubocops/extend/formula_cop.rb
index 47cdbc3ed3..bf4e2d66ee 100644
--- a/Library/Homebrew/rubocops/extend/formula_cop.rb
+++ b/Library/Homebrew/rubocops/extend/formula_cop.rb
@@ -228,13 +228,13 @@ module RuboCop
             rescue JSON::ParserError
               nil
             end
-            next if list_contents.nil? || list_contents.count.zero?
+            next if list_contents.nil? || list_contents.none?
 
             @tap_style_exceptions[list_name] = list_contents
           end
         end
 
-        return false if @tap_style_exceptions.nil? || @tap_style_exceptions.count.zero?
+        return false if @tap_style_exceptions.nil? || @tap_style_exceptions.none?
         return false unless @tap_style_exceptions.key? list
 
         T.must(@tap_style_exceptions[list]).include?(formula || @formula_name)
diff --git a/Library/Homebrew/services/cli.rb b/Library/Homebrew/services/cli.rb
index 9dbea84385..4cb4518eee 100644
--- a/Library/Homebrew/services/cli.rb
+++ b/Library/Homebrew/services/cli.rb
@@ -42,7 +42,7 @@ module Homebrew
       end
 
       # Check if formula has been found.
-      def self.check(targets)
+      def self.check!(targets)
         raise UsageError, "Formula(e) missing, please provide a formula name or use --all" if targets.empty?
 
         true
diff --git a/Library/Homebrew/services/commands/info.rb b/Library/Homebrew/services/commands/info.rb
index ed2bc32434..b797994659 100644
--- a/Library/Homebrew/services/commands/info.rb
+++ b/Library/Homebrew/services/commands/info.rb
@@ -17,7 +17,7 @@ module Homebrew
           ).void
         }
         def self.run(targets, verbose:, json:)
-          Services::Cli.check(targets)
+          Services::Cli.check!(targets)
 
           output = targets.map(&:to_hash)
 
diff --git a/Library/Homebrew/services/commands/kill.rb b/Library/Homebrew/services/commands/kill.rb
index c7182a33ce..cdec978c3f 100644
--- a/Library/Homebrew/services/commands/kill.rb
+++ b/Library/Homebrew/services/commands/kill.rb
@@ -11,7 +11,7 @@ module Homebrew
 
         sig { params(targets: T::Array[Services::FormulaWrapper], verbose: T::Boolean).void }
         def self.run(targets, verbose:)
-          Services::Cli.check(targets)
+          Services::Cli.check!(targets)
           Services::Cli.kill(targets, verbose:)
         end
       end
diff --git a/Library/Homebrew/services/commands/restart.rb b/Library/Homebrew/services/commands/restart.rb
index 4a357c6837..50ad79cc49 100644
--- a/Library/Homebrew/services/commands/restart.rb
+++ b/Library/Homebrew/services/commands/restart.rb
@@ -22,7 +22,7 @@ module Homebrew
           ).void
         }
         def self.run(targets, custom_plist, verbose:)
-          Services::Cli.check(targets)
+          Services::Cli.check!(targets)
 
           ran = []
           started = []
diff --git a/Library/Homebrew/services/commands/run.rb b/Library/Homebrew/services/commands/run.rb
index b46cc0c75b..fc82eec7fe 100644
--- a/Library/Homebrew/services/commands/run.rb
+++ b/Library/Homebrew/services/commands/run.rb
@@ -17,7 +17,7 @@ module Homebrew
           ).void
         }
         def self.run(targets, custom_plist, verbose:)
-          Services::Cli.check(targets)
+          Services::Cli.check!(targets)
           Services::Cli.run(targets, custom_plist, verbose:)
         end
       end
diff --git a/Library/Homebrew/services/commands/start.rb b/Library/Homebrew/services/commands/start.rb
index c20ef6cba5..58bdac1190 100644
--- a/Library/Homebrew/services/commands/start.rb
+++ b/Library/Homebrew/services/commands/start.rb
@@ -17,7 +17,7 @@ module Homebrew
           ).void
         }
         def self.run(targets, custom_plist, verbose:)
-          Services::Cli.check(targets)
+          Services::Cli.check!(targets)
           Services::Cli.start(targets, custom_plist, verbose:)
         end
       end
diff --git a/Library/Homebrew/services/commands/stop.rb b/Library/Homebrew/services/commands/stop.rb
index bdf1882e06..c1c7bb3cae 100644
--- a/Library/Homebrew/services/commands/stop.rb
+++ b/Library/Homebrew/services/commands/stop.rb
@@ -19,7 +19,7 @@ module Homebrew
           ).void
         }
         def self.run(targets, verbose:, no_wait:, max_wait:, keep:)
-          Services::Cli.check(targets)
+          Services::Cli.check!(targets)
           Services::Cli.stop(targets, verbose:, no_wait:, max_wait:, keep:)
         end
       end
diff --git a/Library/Homebrew/style.rb b/Library/Homebrew/style.rb
index ada047d8e2..eda23c283c 100644
--- a/Library/Homebrew/style.rb
+++ b/Library/Homebrew/style.rb
@@ -86,7 +86,7 @@ module Homebrew
       end
 
       shfmt_result = files.present? && shell_files.empty?
-      shfmt_result ||= run_shfmt(shell_files, fix:)
+      shfmt_result ||= run_shfmt!(shell_files, fix:)
 
       actionlint_files = github_workflow_files if files.blank? && actionlint_files.blank?
       has_actionlint_workflow = actionlint_files.any? do |path|
@@ -94,7 +94,7 @@ module Homebrew
       end
       odebug "actionlint workflow detected. Skipping actionlint checks." if has_actionlint_workflow
       actionlint_result = files.present? && (has_actionlint_workflow || actionlint_files.empty?)
-      actionlint_result ||= run_actionlint(actionlint_files)
+      actionlint_result ||= run_actionlint!(actionlint_files)
 
       if output_type == :json
         Offenses.new(rubocop_result + shellcheck_result)
@@ -176,7 +176,7 @@ module Homebrew
 
         # Don't show the default formatter's progress dots
         # on CI or if only checking a single file.
-        args << "--format" << "clang" if ENV["CI"] || files.count { |f| !f.directory? } == 1
+        args << "--format" << "clang" if ENV["CI"] || files.one? { |f| !f.directory? }
 
         args << "--color" if Tty.color?
 
@@ -264,7 +264,7 @@ module Homebrew
       end
     end
 
-    def self.run_shfmt(files, fix: false)
+    def self.run_shfmt!(files, fix: false)
       files = shell_scripts if files.blank?
       # Do not format completions and Dockerfile
       files.delete(HOMEBREW_REPOSITORY/"completions/bash/brew")
@@ -277,7 +277,7 @@ module Homebrew
       $CHILD_STATUS.success?
     end
 
-    def self.run_actionlint(files)
+    def self.run_actionlint!(files)
       files = github_workflow_files if files.blank?
       # the ignore is to avoid false positives in e.g. actions, homebrew-test-bot
       system actionlint, "-shellcheck", shellcheck,
diff --git a/Library/Homebrew/test/bundle/cask_installer_spec.rb b/Library/Homebrew/test/bundle/cask_installer_spec.rb
index 280ded80c4..4d5d9ca1b0 100644
--- a/Library/Homebrew/test/bundle/cask_installer_spec.rb
+++ b/Library/Homebrew/test/bundle/cask_installer_spec.rb
@@ -55,7 +55,7 @@ RSpec.describe Homebrew::Bundle::CaskInstaller do
 
       it "skips" do
         expect(Homebrew::Bundle).not_to receive(:system)
-        expect(described_class.preinstall("google-chrome")).to be(false)
+        expect(described_class.preinstall!("google-chrome")).to be(false)
       end
     end
 
@@ -69,8 +69,8 @@ RSpec.describe Homebrew::Bundle::CaskInstaller do
         expect(Homebrew::Bundle).to \
           receive(:system).with(HOMEBREW_BREW_FILE, "upgrade", "--cask", "google-chrome", verbose: false)
                           .and_return(true)
-        expect(described_class.preinstall("google-chrome")).to be(true)
-        expect(described_class.install("google-chrome")).to be(true)
+        expect(described_class.preinstall!("google-chrome")).to be(true)
+        expect(described_class.install!("google-chrome")).to be(true)
       end
     end
 
@@ -85,8 +85,8 @@ RSpec.describe Homebrew::Bundle::CaskInstaller do
         expect(Homebrew::Bundle).to \
           receive(:system).with(HOMEBREW_BREW_FILE, "upgrade", "--cask", "opera", verbose: false)
                           .and_return(true)
-        expect(described_class.preinstall("opera", greedy: true)).to be(true)
-        expect(described_class.install("opera", greedy: true)).to be(true)
+        expect(described_class.preinstall!("opera", greedy: true)).to be(true)
+        expect(described_class.install!("opera", greedy: true)).to be(true)
       end
     end
 
@@ -99,8 +99,8 @@ RSpec.describe Homebrew::Bundle::CaskInstaller do
         expect(Homebrew::Bundle).to receive(:brew).with("install", "--cask", "google-chrome", "--adopt",
                                                         verbose: false)
                                                   .and_return(true)
-        expect(described_class.preinstall("google-chrome")).to be(true)
-        expect(described_class.install("google-chrome")).to be(true)
+        expect(described_class.preinstall!("google-chrome")).to be(true)
+        expect(described_class.install!("google-chrome")).to be(true)
       end
 
       it "installs cask with arguments" do
@@ -109,16 +109,16 @@ RSpec.describe Homebrew::Bundle::CaskInstaller do
                               verbose: false)
                           .and_return(true),
         )
-        expect(described_class.preinstall("firefox", args: { appdir: "/Applications" })).to be(true)
-        expect(described_class.install("firefox", args: { appdir: "/Applications" })).to be(true)
+        expect(described_class.preinstall!("firefox", args: { appdir: "/Applications" })).to be(true)
+        expect(described_class.install!("firefox", args: { appdir: "/Applications" })).to be(true)
       end
 
       it "reports a failure" do
         expect(Homebrew::Bundle).to receive(:brew).with("install", "--cask", "google-chrome", "--adopt",
                                                         verbose: false)
                                                   .and_return(false)
-        expect(described_class.preinstall("google-chrome")).to be(true)
-        expect(described_class.install("google-chrome")).to be(false)
+        expect(described_class.preinstall!("google-chrome")).to be(true)
+        expect(described_class.install!("google-chrome")).to be(false)
       end
 
       context "with boolean arguments" do
@@ -126,15 +126,15 @@ RSpec.describe Homebrew::Bundle::CaskInstaller do
           expect(Homebrew::Bundle).to receive(:brew).with("install", "--cask", "iterm", "--force",
                                                           verbose: false)
                                                     .and_return(true)
-          expect(described_class.preinstall("iterm", args: { force: true })).to be(true)
-          expect(described_class.install("iterm", args: { force: true })).to be(true)
+          expect(described_class.preinstall!("iterm", args: { force: true })).to be(true)
+          expect(described_class.install!("iterm", args: { force: true })).to be(true)
         end
 
         it "does not include a flag if false" do
           expect(Homebrew::Bundle).to receive(:brew).with("install", "--cask", "iterm", "--adopt", verbose: false)
                                                     .and_return(true)
-          expect(described_class.preinstall("iterm", args: { force: false })).to be(true)
-          expect(described_class.install("iterm", args: { force: false })).to be(true)
+          expect(described_class.preinstall!("iterm", args: { force: false })).to be(true)
+          expect(described_class.install!("iterm", args: { force: false })).to be(true)
         end
       end
     end
@@ -150,14 +150,14 @@ RSpec.describe Homebrew::Bundle::CaskInstaller do
 
       it "runs the postinstall command" do
         expect(Kernel).to receive(:system).with("custom command").and_return(true)
-        expect(described_class.preinstall("google-chrome", postinstall: "custom command")).to be(true)
-        expect(described_class.install("google-chrome", postinstall: "custom command")).to be(true)
+        expect(described_class.preinstall!("google-chrome", postinstall: "custom command")).to be(true)
+        expect(described_class.install!("google-chrome", postinstall: "custom command")).to be(true)
       end
 
       it "reports a failure when postinstall fails" do
         expect(Kernel).to receive(:system).with("custom command").and_return(false)
-        expect(described_class.preinstall("google-chrome", postinstall: "custom command")).to be(true)
-        expect(described_class.install("google-chrome", postinstall: "custom command")).to be(false)
+        expect(described_class.preinstall!("google-chrome", postinstall: "custom command")).to be(true)
+        expect(described_class.install!("google-chrome", postinstall: "custom command")).to be(false)
       end
     end
   end
diff --git a/Library/Homebrew/test/bundle/commands/install_spec.rb b/Library/Homebrew/test/bundle/commands/install_spec.rb
index 546615338b..fe1871e706 100644
--- a/Library/Homebrew/test/bundle/commands/install_spec.rb
+++ b/Library/Homebrew/test/bundle/commands/install_spec.rb
@@ -28,28 +28,28 @@ RSpec.describe Homebrew::Bundle::Commands::Install do
     end
 
     it "does not raise an error" do
-      allow(Homebrew::Bundle::TapInstaller).to receive(:preinstall).and_return(false)
-      allow(Homebrew::Bundle::VscodeExtensionInstaller).to receive(:preinstall).and_return(false)
-      allow(Homebrew::Bundle::FormulaInstaller).to receive_messages(preinstall: true, install: true)
-      allow(Homebrew::Bundle::CaskInstaller).to receive_messages(preinstall: true, install: true)
-      allow(Homebrew::Bundle::MacAppStoreInstaller).to receive_messages(preinstall: true, install: true)
+      allow(Homebrew::Bundle::TapInstaller).to receive(:preinstall!).and_return(false)
+      allow(Homebrew::Bundle::VscodeExtensionInstaller).to receive(:preinstall!).and_return(false)
+      allow(Homebrew::Bundle::FormulaInstaller).to receive_messages(preinstall!: true, install!: true)
+      allow(Homebrew::Bundle::CaskInstaller).to receive_messages(preinstall!: true, install!: true)
+      allow(Homebrew::Bundle::MacAppStoreInstaller).to receive_messages(preinstall!: true, install!: true)
       allow_any_instance_of(Pathname).to receive(:read).and_return(brewfile_contents)
       expect { described_class.run }.not_to raise_error
     end
 
     it "#dsl returns a valid DSL" do
-      allow(Homebrew::Bundle::TapInstaller).to receive(:preinstall).and_return(false)
-      allow(Homebrew::Bundle::VscodeExtensionInstaller).to receive(:preinstall).and_return(false)
-      allow(Homebrew::Bundle::FormulaInstaller).to receive_messages(preinstall: true, install: true)
-      allow(Homebrew::Bundle::CaskInstaller).to receive_messages(preinstall: true, install: true)
-      allow(Homebrew::Bundle::MacAppStoreInstaller).to receive_messages(preinstall: true, install: true)
+      allow(Homebrew::Bundle::TapInstaller).to receive(:preinstall!).and_return(false)
+      allow(Homebrew::Bundle::VscodeExtensionInstaller).to receive(:preinstall!).and_return(false)
+      allow(Homebrew::Bundle::FormulaInstaller).to receive_messages(preinstall!: true, install!: true)
+      allow(Homebrew::Bundle::CaskInstaller).to receive_messages(preinstall!: true, install!: true)
+      allow(Homebrew::Bundle::MacAppStoreInstaller).to receive_messages(preinstall!: true, install!: true)
       allow_any_instance_of(Pathname).to receive(:read).and_return(brewfile_contents)
       described_class.run
       expect(described_class.dsl.entries.first.name).to eql("phinze/cask")
     end
 
     it "does not raise an error when skippable" do
-      expect(Homebrew::Bundle::FormulaInstaller).not_to receive(:install)
+      expect(Homebrew::Bundle::FormulaInstaller).not_to receive(:install!)
 
       allow(Homebrew::Bundle::Skipper).to receive(:skip?).and_return(true)
       allow_any_instance_of(Pathname).to receive(:read)
@@ -58,22 +58,22 @@ RSpec.describe Homebrew::Bundle::Commands::Install do
     end
 
     it "exits on failures" do
-      allow(Homebrew::Bundle::FormulaInstaller).to receive_messages(preinstall: true, install: false)
-      allow(Homebrew::Bundle::CaskInstaller).to receive_messages(preinstall: true, install: false)
-      allow(Homebrew::Bundle::MacAppStoreInstaller).to receive_messages(preinstall: true, install: false)
-      allow(Homebrew::Bundle::TapInstaller).to receive_messages(preinstall: true, install: false)
-      allow(Homebrew::Bundle::VscodeExtensionInstaller).to receive_messages(preinstall: true, install: false)
+      allow(Homebrew::Bundle::FormulaInstaller).to receive_messages(preinstall!: true, install!: false)
+      allow(Homebrew::Bundle::CaskInstaller).to receive_messages(preinstall!: true, install!: false)
+      allow(Homebrew::Bundle::MacAppStoreInstaller).to receive_messages(preinstall!: true, install!: false)
+      allow(Homebrew::Bundle::TapInstaller).to receive_messages(preinstall!: true, install!: false)
+      allow(Homebrew::Bundle::VscodeExtensionInstaller).to receive_messages(preinstall!: true, install!: false)
       allow_any_instance_of(Pathname).to receive(:read).and_return(brewfile_contents)
 
       expect { described_class.run }.to raise_error(SystemExit)
     end
 
     it "skips installs from failed taps" do
-      allow(Homebrew::Bundle::CaskInstaller).to receive(:preinstall).and_return(false)
-      allow(Homebrew::Bundle::TapInstaller).to receive_messages(preinstall: true, install: false)
-      allow(Homebrew::Bundle::FormulaInstaller).to receive_messages(preinstall: true, install: true)
-      allow(Homebrew::Bundle::MacAppStoreInstaller).to receive_messages(preinstall: true, install: true)
-      allow(Homebrew::Bundle::VscodeExtensionInstaller).to receive_messages(preinstall: true, install: true)
+      allow(Homebrew::Bundle::CaskInstaller).to receive(:preinstall!).and_return(false)
+      allow(Homebrew::Bundle::TapInstaller).to receive_messages(preinstall!: true, install!: false)
+      allow(Homebrew::Bundle::FormulaInstaller).to receive_messages(preinstall!: true, install!: true)
+      allow(Homebrew::Bundle::MacAppStoreInstaller).to receive_messages(preinstall!: true, install!: true)
+      allow(Homebrew::Bundle::VscodeExtensionInstaller).to receive_messages(preinstall!: true, install!: true)
       allow_any_instance_of(Pathname).to receive(:read).and_return(brewfile_contents)
 
       expect(Homebrew::Bundle).not_to receive(:system)
diff --git a/Library/Homebrew/test/bundle/formula_installer_spec.rb b/Library/Homebrew/test/bundle/formula_installer_spec.rb
index a3f958e38d..dec673217c 100644
--- a/Library/Homebrew/test/bundle/formula_installer_spec.rb
+++ b/Library/Homebrew/test/bundle/formula_installer_spec.rb
@@ -37,15 +37,15 @@ RSpec.describe Homebrew::Bundle::FormulaInstaller do
         context "with a successful installation" do
           it "start service" do
             expect(Homebrew::Bundle::BrewServices).not_to receive(:start)
-            described_class.preinstall(formula_name, start_service: true)
-            described_class.install(formula_name, start_service: true)
+            described_class.preinstall!(formula_name, start_service: true)
+            described_class.install!(formula_name, start_service: true)
           end
         end
 
         context "with a skipped installation" do
           it "start service" do
             expect(Homebrew::Bundle::BrewServices).not_to receive(:start)
-            described_class.install(formula_name, preinstall: false, start_service: true)
+            described_class.install!(formula_name, preinstall: false, start_service: true)
           end
         end
       end
@@ -59,8 +59,8 @@ RSpec.describe Homebrew::Bundle::FormulaInstaller do
           it "start service" do
             expect(Homebrew::Bundle::BrewServices).to \
               receive(:start).with(formula_name, file: nil, verbose: false).and_return(true)
-            described_class.preinstall(formula_name, start_service: true)
-            described_class.install(formula_name, start_service: true)
+            described_class.preinstall!(formula_name, start_service: true)
+            described_class.install!(formula_name, start_service: true)
           end
         end
 
@@ -68,7 +68,7 @@ RSpec.describe Homebrew::Bundle::FormulaInstaller do
           it "start service" do
             expect(Homebrew::Bundle::BrewServices).to \
               receive(:start).with(formula_name, file: nil, verbose: false).and_return(true)
-            described_class.install(formula_name, preinstall: false, start_service: true)
+            described_class.install!(formula_name, preinstall: false, start_service: true)
           end
         end
       end
@@ -84,8 +84,8 @@ RSpec.describe Homebrew::Bundle::FormulaInstaller do
         it "restart service" do
           expect(Homebrew::Bundle::BrewServices).to \
             receive(:restart).with(formula_name, file: nil, verbose: false).and_return(true)
-          described_class.preinstall(formula_name, restart_service: :always)
-          described_class.install(formula_name, restart_service: :always)
+          described_class.preinstall!(formula_name, restart_service: :always)
+          described_class.install!(formula_name, restart_service: :always)
         end
       end
 
@@ -93,7 +93,7 @@ RSpec.describe Homebrew::Bundle::FormulaInstaller do
         it "restart service" do
           expect(Homebrew::Bundle::BrewServices).to \
             receive(:restart).with(formula_name, file: nil, verbose: false).and_return(true)
-          described_class.install(formula_name, preinstall: false, restart_service: :always)
+          described_class.install!(formula_name, preinstall: false, restart_service: :always)
         end
       end
     end
@@ -107,8 +107,8 @@ RSpec.describe Homebrew::Bundle::FormulaInstaller do
         allow_any_instance_of(described_class).to receive(:linked?).and_return(false)
         expect(Homebrew::Bundle).to receive(:system).with(HOMEBREW_BREW_FILE, "link", "mysql",
                                                           verbose: false).and_return(true)
-        described_class.preinstall(formula_name, link: true)
-        described_class.install(formula_name, link: true)
+        described_class.preinstall!(formula_name, link: true)
+        described_class.install!(formula_name, link: true)
       end
 
       it "force-links keg-only formula" do
@@ -116,8 +116,8 @@ RSpec.describe Homebrew::Bundle::FormulaInstaller do
         allow_any_instance_of(described_class).to receive(:keg_only?).and_return(true)
         expect(Homebrew::Bundle).to receive(:system).with(HOMEBREW_BREW_FILE, "link", "--force", "mysql",
                                                           verbose: false).and_return(true)
-        described_class.preinstall(formula_name, link: true)
-        described_class.install(formula_name, link: true)
+        described_class.preinstall!(formula_name, link: true)
+        described_class.install!(formula_name, link: true)
       end
     end
 
@@ -130,8 +130,8 @@ RSpec.describe Homebrew::Bundle::FormulaInstaller do
         allow_any_instance_of(described_class).to receive(:linked?).and_return(false)
         expect(Homebrew::Bundle).to receive(:system).with(HOMEBREW_BREW_FILE, "link", "--overwrite", "mysql",
                                                           verbose: false).and_return(true)
-        described_class.preinstall(formula_name, link: :overwrite)
-        described_class.install(formula_name, link: :overwrite)
+        described_class.preinstall!(formula_name, link: :overwrite)
+        described_class.install!(formula_name, link: :overwrite)
       end
     end
 
@@ -144,8 +144,8 @@ RSpec.describe Homebrew::Bundle::FormulaInstaller do
         allow_any_instance_of(described_class).to receive(:linked?).and_return(true)
         expect(Homebrew::Bundle).to receive(:system).with(HOMEBREW_BREW_FILE, "unlink", "mysql",
                                                           verbose: false).and_return(true)
-        described_class.preinstall(formula_name, link: false)
-        described_class.install(formula_name, link: false)
+        described_class.preinstall!(formula_name, link: false)
+        described_class.install!(formula_name, link: false)
       end
     end
 
@@ -159,8 +159,8 @@ RSpec.describe Homebrew::Bundle::FormulaInstaller do
       it "links formula" do
         expect(Homebrew::Bundle).to receive(:system).with(HOMEBREW_BREW_FILE, "link", "mysql",
                                                           verbose: false).and_return(true)
-        described_class.preinstall(formula_name, link: nil)
-        described_class.install(formula_name, link: nil)
+        described_class.preinstall!(formula_name, link: nil)
+        described_class.install!(formula_name, link: nil)
       end
     end
 
@@ -174,9 +174,9 @@ RSpec.describe Homebrew::Bundle::FormulaInstaller do
       it "unlinks formula" do
         expect(Homebrew::Bundle).to receive(:system).with(HOMEBREW_BREW_FILE, "unlink", "mysql",
                                                           verbose: false).and_return(true)
-        described_class.preinstall(formula_name, link: nil)
+        described_class.preinstall!(formula_name, link: nil)
 
-        described_class.install(formula_name, link: nil)
+        described_class.install!(formula_name, link: nil)
       end
     end
 
@@ -188,8 +188,8 @@ RSpec.describe Homebrew::Bundle::FormulaInstaller do
           conflicts_with: ["mysql55"],
         )
         allow(described_class).to receive(:formula_installed?).and_return(true)
-        allow_any_instance_of(described_class).to receive(:install!).and_return(true)
-        allow_any_instance_of(described_class).to receive(:upgrade!).and_return(true)
+        allow_any_instance_of(described_class).to receive(:install_formula!).and_return(true)
+        allow_any_instance_of(described_class).to receive(:upgrade_formula!).and_return(true)
       end
 
       it "unlinks conflicts and stops their services" do
@@ -203,8 +203,8 @@ RSpec.describe Homebrew::Bundle::FormulaInstaller do
         expect(Homebrew::Bundle::BrewServices).to receive(:stop).with("mysql56", verbose:).and_return(true)
         expect(Homebrew::Bundle::BrewServices).to receive(:restart).with(formula_name, file:    nil,
                                                                                        verbose:).and_return(true)
-        described_class.preinstall(formula_name, restart_service: :always, conflicts_with: ["mysql56"])
-        described_class.install(formula_name, restart_service: :always, conflicts_with: ["mysql56"])
+        described_class.preinstall!(formula_name, restart_service: :always, conflicts_with: ["mysql56"])
+        described_class.install!(formula_name, restart_service: :always, conflicts_with: ["mysql56"])
       end
 
       it "prints a message" do
@@ -219,8 +219,10 @@ RSpec.describe Homebrew::Bundle::FormulaInstaller do
         expect(Homebrew::Bundle::BrewServices).to receive(:stop).with("mysql56", verbose:).and_return(true)
         expect(Homebrew::Bundle::BrewServices).to receive(:restart).with(formula_name, file:    nil,
                                                                                        verbose:).and_return(true)
-        described_class.preinstall(formula_name, restart_service: :always, conflicts_with: ["mysql56"], verbose: true)
-        described_class.install(formula_name, restart_service: :always, conflicts_with: ["mysql56"], verbose: true)
+        described_class.preinstall!(formula_name, restart_service: :always, conflicts_with: ["mysql56"],
+        verbose: true)
+        described_class.install!(formula_name, restart_service: :always, conflicts_with: ["mysql56"],
+        verbose: true)
       end
     end
 
@@ -237,14 +239,14 @@ RSpec.describe Homebrew::Bundle::FormulaInstaller do
 
         it "runs the postinstall command" do
           expect(Kernel).to receive(:system).with("custom command").and_return(true)
-          described_class.preinstall(formula_name, postinstall: "custom command")
-          described_class.install(formula_name, postinstall: "custom command")
+          described_class.preinstall!(formula_name, postinstall: "custom command")
+          described_class.install!(formula_name, postinstall: "custom command")
         end
 
         it "reports a failure" do
           expect(Kernel).to receive(:system).with("custom command").and_return(false)
-          described_class.preinstall(formula_name, postinstall: "custom command")
-          expect(described_class.install(formula_name, postinstall: "custom command")).to be(false)
+          described_class.preinstall!(formula_name, postinstall: "custom command")
+          expect(described_class.install!(formula_name, postinstall: "custom command")).to be(false)
         end
       end
 
@@ -255,8 +257,8 @@ RSpec.describe Homebrew::Bundle::FormulaInstaller do
 
         it "does not run the postinstall command" do
           expect(Kernel).not_to receive(:system)
-          described_class.preinstall(formula_name, postinstall: "custom command")
-          described_class.install(formula_name, postinstall: "custom command")
+          described_class.preinstall!(formula_name, postinstall: "custom command")
+          described_class.install!(formula_name, postinstall: "custom command")
         end
       end
     end
@@ -281,16 +283,16 @@ RSpec.describe Homebrew::Bundle::FormulaInstaller do
 
         it "writes the version to the file" do
           expect(File).to receive(:write).with(version_file, "#{version}\n")
-          described_class.preinstall(formula_name, version_file:)
-          described_class.install(formula_name, version_file:)
+          described_class.preinstall!(formula_name, version_file:)
+          described_class.install!(formula_name, version_file:)
         end
       end
 
       context "when using the latest formula" do
         it "writes the version to the file" do
           expect(File).to receive(:write).with(version_file, "#{version}\n")
-          described_class.preinstall(formula_name, version_file:)
-          described_class.install(formula_name, version_file:)
+          described_class.preinstall!(formula_name, version_file:)
+          described_class.install!(formula_name, version_file:)
         end
       end
     end
@@ -304,7 +306,7 @@ RSpec.describe Homebrew::Bundle::FormulaInstaller do
 
     it "did not call restart service" do
       expect(Homebrew::Bundle::BrewServices).not_to receive(:restart)
-      described_class.preinstall(formula_name, restart_service: true)
+      described_class.preinstall!(formula_name, restart_service: true)
     end
   end
 
@@ -386,16 +388,16 @@ RSpec.describe Homebrew::Bundle::FormulaInstaller do
         expect(Homebrew::Bundle).to receive(:system)
           .with(HOMEBREW_BREW_FILE, "install", "--formula", formula_name, "--with-option", verbose: false)
           .and_return(true)
-        expect(installer.preinstall).to be(true)
-        expect(installer.install).to be(true)
+        expect(installer.preinstall!).to be(true)
+        expect(installer.install!).to be(true)
       end
 
       it "reports a failure" do
         expect(Homebrew::Bundle).to receive(:system)
           .with(HOMEBREW_BREW_FILE, "install", "--formula", formula_name, "--with-option", verbose: false)
           .and_return(false)
-        expect(installer.preinstall).to be(true)
-        expect(installer.install).to be(false)
+        expect(installer.preinstall!).to be(true)
+        expect(installer.install!).to be(false)
       end
     end
 
@@ -416,16 +418,16 @@ RSpec.describe Homebrew::Bundle::FormulaInstaller do
           expect(Homebrew::Bundle).to \
             receive(:system).with(HOMEBREW_BREW_FILE, "upgrade", "--formula", formula_name, verbose: false)
                             .and_return(true)
-          expect(installer.preinstall).to be(true)
-          expect(installer.install).to be(true)
+          expect(installer.preinstall!).to be(true)
+          expect(installer.install!).to be(true)
         end
 
         it "reports a failure" do
           expect(Homebrew::Bundle).to \
             receive(:system).with(HOMEBREW_BREW_FILE, "upgrade", "--formula", formula_name, verbose: false)
                             .and_return(false)
-          expect(installer.preinstall).to be(true)
-          expect(installer.install).to be(false)
+          expect(installer.preinstall!).to be(true)
+          expect(installer.install!).to be(false)
         end
 
         context "when formula pinned" do
@@ -436,7 +438,7 @@ RSpec.describe Homebrew::Bundle::FormulaInstaller do
           it "does not upgrade formula" do
             expect(Homebrew::Bundle).not_to \
               receive(:system).with(HOMEBREW_BREW_FILE, "upgrade", "--formula", formula_name, verbose: false)
-            expect(installer.preinstall).to be(false)
+            expect(installer.preinstall!).to be(false)
           end
         end
 
@@ -447,7 +449,7 @@ RSpec.describe Homebrew::Bundle::FormulaInstaller do
 
           it "does not upgrade formula" do
             expect(Homebrew::Bundle).not_to receive(:system)
-            expect(installer.preinstall).to be(false)
+            expect(installer.preinstall!).to be(false)
           end
         end
       end
diff --git a/Library/Homebrew/test/bundle/mac_app_store_installer_spec.rb b/Library/Homebrew/test/bundle/mac_app_store_installer_spec.rb
index 802ad87444..4ce1514cdc 100644
--- a/Library/Homebrew/test/bundle/mac_app_store_installer_spec.rb
+++ b/Library/Homebrew/test/bundle/mac_app_store_installer_spec.rb
@@ -30,7 +30,7 @@ RSpec.describe Homebrew::Bundle::MacAppStoreInstaller do
     it "tries to install mas" do
       expect(Homebrew::Bundle).to receive(:system).with(HOMEBREW_BREW_FILE, "install", "mas",
                                                         verbose: false).and_return(true)
-      expect { described_class.preinstall("foo", 123) }.to raise_error(RuntimeError)
+      expect { described_class.preinstall!("foo", 123) }.to raise_error(RuntimeError)
     end
 
     describe ".outdated_app_ids" do
@@ -62,7 +62,7 @@ RSpec.describe Homebrew::Bundle::MacAppStoreInstaller do
 
       it "skips" do
         expect(Homebrew::Bundle).not_to receive(:system)
-        expect(described_class.preinstall("foo", 123)).to be(false)
+        expect(described_class.preinstall!("foo", 123)).to be(false)
       end
     end
 
@@ -73,8 +73,8 @@ RSpec.describe Homebrew::Bundle::MacAppStoreInstaller do
 
       it "upgrades" do
         expect(Homebrew::Bundle).to receive(:system).with("mas", "upgrade", "123", verbose: false).and_return(true)
-        expect(described_class.preinstall("foo", 123)).to be(true)
-        expect(described_class.install("foo", 123)).to be(true)
+        expect(described_class.preinstall!("foo", 123)).to be(true)
+        expect(described_class.install!("foo", 123)).to be(true)
       end
     end
 
@@ -85,8 +85,8 @@ RSpec.describe Homebrew::Bundle::MacAppStoreInstaller do
 
       it "installs app" do
         expect(Homebrew::Bundle).to receive(:system).with("mas", "install", "123", verbose: false).and_return(true)
-        expect(described_class.preinstall("foo", 123)).to be(true)
-        expect(described_class.install("foo", 123)).to be(true)
+        expect(described_class.preinstall!("foo", 123)).to be(true)
+        expect(described_class.install!("foo", 123)).to be(true)
       end
     end
   end
diff --git a/Library/Homebrew/test/bundle/tap_installer_spec.rb b/Library/Homebrew/test/bundle/tap_installer_spec.rb
index c254875e43..34418d5bc1 100644
--- a/Library/Homebrew/test/bundle/tap_installer_spec.rb
+++ b/Library/Homebrew/test/bundle/tap_installer_spec.rb
@@ -22,7 +22,7 @@ RSpec.describe Homebrew::Bundle::TapInstaller do
 
     it "skips" do
       expect(Homebrew::Bundle).not_to receive(:system)
-      expect(described_class.preinstall("homebrew/cask")).to be(false)
+      expect(described_class.preinstall!("homebrew/cask")).to be(false)
     end
   end
 
@@ -34,8 +34,8 @@ RSpec.describe Homebrew::Bundle::TapInstaller do
     it "taps" do
       expect(Homebrew::Bundle).to receive(:system).with(HOMEBREW_BREW_FILE, "tap", "homebrew/cask",
                                                         verbose: false).and_return(true)
-      expect(described_class.preinstall("homebrew/cask")).to be(true)
-      expect(described_class.install("homebrew/cask")).to be(true)
+      expect(described_class.preinstall!("homebrew/cask")).to be(true)
+      expect(described_class.install!("homebrew/cask")).to be(true)
     end
 
     context "with clone target" do
@@ -43,16 +43,16 @@ RSpec.describe Homebrew::Bundle::TapInstaller do
         expect(Homebrew::Bundle).to \
           receive(:system).with(HOMEBREW_BREW_FILE, "tap", "homebrew/cask", "clone_target_path",
                                 verbose: false).and_return(true)
-        expect(described_class.preinstall("homebrew/cask", clone_target: "clone_target_path")).to be(true)
-        expect(described_class.install("homebrew/cask", clone_target: "clone_target_path")).to be(true)
+        expect(described_class.preinstall!("homebrew/cask", clone_target: "clone_target_path")).to be(true)
+        expect(described_class.install!("homebrew/cask", clone_target: "clone_target_path")).to be(true)
       end
 
       it "fails" do
         expect(Homebrew::Bundle).to \
           receive(:system).with(HOMEBREW_BREW_FILE, "tap", "homebrew/cask", "clone_target_path",
                                 verbose: false).and_return(false)
-        expect(described_class.preinstall("homebrew/cask", clone_target: "clone_target_path")).to be(true)
-        expect(described_class.install("homebrew/cask", clone_target: "clone_target_path")).to be(false)
+        expect(described_class.preinstall!("homebrew/cask", clone_target: "clone_target_path")).to be(true)
+        expect(described_class.install!("homebrew/cask", clone_target: "clone_target_path")).to be(false)
       end
     end
   end
diff --git a/Library/Homebrew/test/bundle/vscode_extension_installer_spec.rb b/Library/Homebrew/test/bundle/vscode_extension_installer_spec.rb
index a0371f761f..f51895e880 100644
--- a/Library/Homebrew/test/bundle/vscode_extension_installer_spec.rb
+++ b/Library/Homebrew/test/bundle/vscode_extension_installer_spec.rb
@@ -15,7 +15,7 @@ RSpec.describe Homebrew::Bundle::VscodeExtensionInstaller do
       expect(Homebrew::Bundle).to \
         receive(:system).with(HOMEBREW_BREW_FILE, "install", "--cask", "visual-studio-code", verbose: false)
                         .and_return(true)
-      expect { described_class.preinstall("foo") }.to raise_error(RuntimeError)
+      expect { described_class.preinstall!("foo") }.to raise_error(RuntimeError)
     end
   end
 
@@ -31,12 +31,12 @@ RSpec.describe Homebrew::Bundle::VscodeExtensionInstaller do
 
       it "skips" do
         expect(Homebrew::Bundle).not_to receive(:system)
-        expect(described_class.preinstall("foo")).to be(false)
+        expect(described_class.preinstall!("foo")).to be(false)
       end
 
       it "skips ignoring case" do
         expect(Homebrew::Bundle).not_to receive(:system)
-        expect(described_class.preinstall("Foo")).to be(false)
+        expect(described_class.preinstall!("Foo")).to be(false)
       end
     end
 
@@ -48,8 +48,8 @@ RSpec.describe Homebrew::Bundle::VscodeExtensionInstaller do
       it "installs extension" do
         expect(Homebrew::Bundle).to \
           receive(:system).with(Pathname("code"), "--install-extension", "foo", verbose: false).and_return(true)
-        expect(described_class.preinstall("foo")).to be(true)
-        expect(described_class.install("foo")).to be(true)
+        expect(described_class.preinstall!("foo")).to be(true)
+        expect(described_class.install!("foo")).to be(true)
       end
 
       it "installs extension when euid != uid and Process::UID.re_exchangeable? returns true" do
@@ -59,8 +59,8 @@ RSpec.describe Homebrew::Bundle::VscodeExtensionInstaller do
 
         expect(Homebrew::Bundle).to \
           receive(:system).with(Pathname("code"), "--install-extension", "foo", verbose: false).and_return(true)
-        expect(described_class.preinstall("foo")).to be(true)
-        expect(described_class.install("foo")).to be(true)
+        expect(described_class.preinstall!("foo")).to be(true)
+        expect(described_class.install!("foo")).to be(true)
       end
 
       it "installs extension when euid != uid and Process::UID.re_exchangeable? returns false" do
@@ -70,8 +70,8 @@ RSpec.describe Homebrew::Bundle::VscodeExtensionInstaller do
 
         expect(Homebrew::Bundle).to \
           receive(:system).with(Pathname("code"), "--install-extension", "foo", verbose: false).and_return(true)
-        expect(described_class.preinstall("foo")).to be(true)
-        expect(described_class.install("foo")).to be(true)
+        expect(described_class.preinstall!("foo")).to be(true)
+        expect(described_class.install!("foo")).to be(true)
       end
     end
   end
diff --git a/Library/Homebrew/test/bundle/whalebrew_installer_spec.rb b/Library/Homebrew/test/bundle/whalebrew_installer_spec.rb
index 7cc5ee1c0c..b1444cfeb5 100644
--- a/Library/Homebrew/test/bundle/whalebrew_installer_spec.rb
+++ b/Library/Homebrew/test/bundle/whalebrew_installer_spec.rb
@@ -42,7 +42,7 @@ RSpec.describe Homebrew::Bundle::WhalebrewInstaller do
       expect(Homebrew::Bundle).to receive(:system).with(HOMEBREW_BREW_FILE, "install", "--formula", "whalebrew",
                                                         verbose: false)
                                                   .and_return(true)
-      expect { described_class.preinstall("whalebrew/wget") }.to raise_error(RuntimeError)
+      expect { described_class.preinstall!("whalebrew/wget") }.to raise_error(RuntimeError)
     end
   end
 
@@ -61,7 +61,7 @@ RSpec.describe Homebrew::Bundle::WhalebrewInstaller do
       end
 
       it "skips" do
-        expect(described_class.preinstall("whalebrew/wget")).to be(false)
+        expect(described_class.preinstall!("whalebrew/wget")).to be(false)
       end
     end
   end
diff --git a/Library/Homebrew/test/cask/upgrade_spec.rb b/Library/Homebrew/test/cask/upgrade_spec.rb
index d2bf61b2b9..244df29988 100644
--- a/Library/Homebrew/test/cask/upgrade_spec.rb
+++ b/Library/Homebrew/test/cask/upgrade_spec.rb
@@ -59,7 +59,7 @@ RSpec.describe Cask::Upgrade, :cask do
         expect(renamed_app_new_path).not_to be_a_directory
         expect(renamed_app.installed_version).to eq "1.0.0"
 
-        described_class.upgrade_casks(dry_run: true, args:)
+        described_class.upgrade_casks!(dry_run: true, args:)
 
         expect(local_caffeine).to be_installed
         expect(local_caffeine_path).to be_a_directory
@@ -86,7 +86,7 @@ RSpec.describe Cask::Upgrade, :cask do
         expect(local_transmission_path).to be_a_directory
         expect(local_transmission.installed_version).to eq "2.60"
 
-        described_class.upgrade_casks(local_caffeine, dry_run: true, args:)
+        described_class.upgrade_casks!(local_caffeine, dry_run: true, args:)
 
         expect(local_caffeine).to be_installed
         expect(local_caffeine_path).to be_a_directory
@@ -113,7 +113,7 @@ RSpec.describe Cask::Upgrade, :cask do
         expect(renamed_app_new_path).not_to be_a_directory
         expect(renamed_app.installed_version).to eq "1.0.0"
 
-        described_class.upgrade_casks(local_caffeine, auto_updates, dry_run: true, args:)
+        described_class.upgrade_casks!(local_caffeine, auto_updates, dry_run: true, args:)
 
         expect(local_caffeine).to be_installed
         expect(local_caffeine_path).to be_a_directory
@@ -156,7 +156,7 @@ RSpec.describe Cask::Upgrade, :cask do
         version_latest.download_sha_path.write("fake download sha")
         expect(version_latest.outdated_download_sha?).to be(true)
 
-        described_class.upgrade_casks(greedy: true, dry_run: true, args:)
+        described_class.upgrade_casks!(greedy: true, dry_run: true, args:)
 
         expect(local_caffeine).to be_installed
         expect(local_caffeine_path).to be_a_directory
@@ -186,7 +186,7 @@ RSpec.describe Cask::Upgrade, :cask do
         expect(auto_updates_path).to be_a_directory
         expect(auto_updates.installed_version).to eq "2.57"
 
-        described_class.upgrade_casks(auto_updates, dry_run: true, greedy: true, args:)
+        described_class.upgrade_casks!(auto_updates, dry_run: true, greedy: true, args:)
 
         expect(auto_updates).to be_installed
         expect(auto_updates_path).to be_a_directory
@@ -203,7 +203,7 @@ RSpec.describe Cask::Upgrade, :cask do
         version_latest.download_sha_path.write("fake download sha")
         expect(version_latest.outdated_download_sha?).to be(true)
 
-        described_class.upgrade_casks(version_latest, dry_run: true, greedy: true, args:)
+        described_class.upgrade_casks!(version_latest, dry_run: true, greedy: true, args:)
 
         expect(version_latest).to be_installed
         expect(version_latest_paths).to all be_a_directory
@@ -234,7 +234,7 @@ RSpec.describe Cask::Upgrade, :cask do
       expect(will_fail_if_upgraded.installed_version).to eq "1.2.2"
 
       expect do
-        described_class.upgrade_casks(will_fail_if_upgraded, args:)
+        described_class.upgrade_casks!(will_fail_if_upgraded, args:)
       end.to raise_error(Cask::CaskError).and output(output_reverted).to_stderr
 
       expect(will_fail_if_upgraded).to be_installed
@@ -252,7 +252,7 @@ RSpec.describe Cask::Upgrade, :cask do
       expect(bad_checksum.installed_version).to eq "1.2.2"
 
       expect do
-        described_class.upgrade_casks(bad_checksum, args:)
+        described_class.upgrade_casks!(bad_checksum, args:)
       end.to raise_error(ChecksumMismatchError).and(not_to_output(output_reverted).to_stderr)
 
       expect(bad_checksum).to be_installed
@@ -291,7 +291,7 @@ RSpec.describe Cask::Upgrade, :cask do
       expect(bad_checksum_2.installed_version).to eq "1.2.2"
 
       expect do
-        described_class.upgrade_casks(args:)
+        described_class.upgrade_casks!(args:)
       end.to raise_error(Cask::MultipleCaskErrors)
 
       expect(bad_checksum).to be_installed
diff --git a/Library/Homebrew/test/extend/blank_spec.rb b/Library/Homebrew/test/extend/blank_spec.rb
index 6c5d466692..0b80d56f01 100644
--- a/Library/Homebrew/test/extend/blank_spec.rb
+++ b/Library/Homebrew/test/extend/blank_spec.rb
@@ -5,9 +5,12 @@ require "extend/blank"
 RSpec.describe Object do
   let(:empty_true) do
     Class.new(described_class) do
+      # This API is intentionally non-ideal for testing.
+      # rubocop:disable Naming/PredicateMethod
       def empty?
         0
       end
+      # rubocop:enable Naming/PredicateMethod
     end
   end
   let(:empty_false) do
diff --git a/Library/Homebrew/test/keg_relocate/relocation_spec.rb b/Library/Homebrew/test/keg_relocate/relocation_spec.rb
index a4e0f15be5..f256ed4c56 100644
--- a/Library/Homebrew/test/keg_relocate/relocation_spec.rb
+++ b/Library/Homebrew/test/keg_relocate/relocation_spec.rb
@@ -32,11 +32,11 @@ RSpec.describe Keg::Relocation do
     expect(relocation.replacement_pair_for(:library_placeholder)).to eq [library_placeholder, library]
   end
 
-  specify "#replace_text" do
+  specify "#replace_text!" do
     relocation = setup_relocation
 
     text = +"foo"
-    relocation.replace_text(text)
+    relocation.replace_text!(text)
     expect(text).to eq "foo"
 
     text = <<~TEXT
@@ -47,7 +47,7 @@ RSpec.describe Keg::Relocation do
       #{repository_placeholder}/foo
       foo#{library_placeholder}/bar
     TEXT
-    relocation.replace_text(text)
+    relocation.replace_text!(text)
     expect(text).to eq <<~REPLACED
       #{prefix_placeholder}/foo
       #{cellar_placeholder}/foo
diff --git a/Library/Homebrew/test/services/cli_spec.rb b/Library/Homebrew/test/services/cli_spec.rb
index e1ab8457c7..000039475d 100644
--- a/Library/Homebrew/test/services/cli_spec.rb
+++ b/Library/Homebrew/test/services/cli_spec.rb
@@ -42,16 +42,16 @@ RSpec.describe Homebrew::Services::Cli do
     end
   end
 
-  describe "#check" do
+  describe "#check!" do
     it "checks the input does not exist" do
       expect do
-        services_cli.check([])
+        services_cli.check!([])
       end.to raise_error(UsageError, "Invalid usage: Formula(e) missing, please provide a formula name or use --all")
     end
 
     it "checks the input exists" do
       expect do
-        services_cli.check("hello")
+        services_cli.check!("hello")
       end.not_to raise_error(UsageError,
                              "Invalid usage: Formula(e) missing, please provide a formula name or use --all")
     end
diff --git a/Library/Homebrew/test/sorbet/tapioca/compilers/args_spec.rb b/Library/Homebrew/test/sorbet/tapioca/compilers/args_spec.rb
deleted file mode 100644
index 9f50418353..0000000000
--- a/Library/Homebrew/test/sorbet/tapioca/compilers/args_spec.rb
+++ /dev/null
@@ -1,62 +0,0 @@
-# frozen_string_literal: true
-
-require "tapioca/dsl"
-require "sorbet/tapioca/compilers/args"
-
-RSpec.describe Tapioca::Compilers::Args do
-  let(:compiler) { described_class.new(Tapioca::Dsl::Pipeline.new(requested_constants: []), RBI::Tree.new, Homebrew) }
-  let(:list_parser) do
-    require "cmd/list"
-    Homebrew::Cmd::List.parser
-  end
-
-  # Good testing candidate because it has multiple for each of `switch`, `flag` and `comma_array` args:
-  let(:update_python_resources_parser) do
-    require "dev-cmd/update-python-resources"
-    Homebrew::DevCmd::UpdatePythonResources.parser
-  end
-
-  describe "#args_table" do
-    it "returns a mapping of list args to default values" do
-      expect(compiler.args_table(list_parser)).to contain_exactly(
-        :"1?", :built_from_source?, :cask?, :casks?, :d?, :debug?, :formula?, :formulae?, :full_name?, :h?, :help?,
-        :installed_as_dependency?, :installed_on_request?, :l?, :multiple?, :pinned?, :poured_from_bottle?, :q?,
-        :quiet?, :r?, :t?, :v?, :verbose?, :versions?
-      )
-    end
-
-    it "returns a mapping of update-python-resources args to default values" do
-      expect(compiler.args_table(update_python_resources_parser)).to contain_exactly(
-        :d?, :debug?, :exclude_packages, :extra_packages, :h?, :help?, :ignore_errors?, :ignore_non_pypi_packages?,
-        :install_dependencies?, :p?, :package_name, :print_only?, :q?, :quiet?, :s?, :silent?, :v?, :verbose?,
-        :version
-      )
-    end
-  end
-
-  describe "#comma_arrays" do
-    it "returns an empty list when there are no comma_array args" do
-      expect(compiler.comma_arrays(list_parser)).to eq([])
-    end
-
-    it "returns the comma_array args when they exist" do
-      expect(compiler.comma_arrays(update_python_resources_parser)).to eq([:extra_packages, :exclude_packages])
-    end
-  end
-
-  describe "#get_return_type" do
-    let(:comma_arrays) { compiler.comma_arrays(update_python_resources_parser) }
-
-    it "returns the correct type for switches" do
-      expect(compiler.get_return_type(:silent?, comma_arrays)).to eq("T::Boolean")
-    end
-
-    it "returns the correct type for flags" do
-      expect(compiler.get_return_type(:package_name, comma_arrays)).to eq("T.nilable(String)")
-    end
-
-    it "returns the correct type for comma_arrays" do
-      expect(compiler.get_return_type(:extra_packages, comma_arrays)).to eq("T.nilable(T::Array[String])")
-    end
-  end
-end
diff --git a/Library/Homebrew/uninstall.rb b/Library/Homebrew/uninstall.rb
index c8d0e59ae8..6acafea7eb 100644
--- a/Library/Homebrew/uninstall.rb
+++ b/Library/Homebrew/uninstall.rb
@@ -48,7 +48,7 @@ module Homebrew
               if rack.directory?
                 versions = rack.subdirs.map(&:basename)
                 puts <<~EOS
-                  #{keg.name} #{versions.to_sentence} #{(versions.count == 1) ? "is" : "are"} still installed.
+                  #{keg.name} #{versions.to_sentence} #{versions.one? ? "is" : "are"} still installed.
                   To remove all versions, run:
                     brew uninstall --force #{keg.name}
                 EOS
@@ -108,13 +108,13 @@ module Homebrew
       return if ignore_dependencies
 
       all_kegs = kegs_by_rack.values.flatten(1)
-      check_for_dependents(all_kegs, casks:, named_args:)
+      check_for_dependents!(all_kegs, casks:, named_args:)
     rescue MethodDeprecatedError
       # Silently ignore deprecations when uninstalling.
       nil
     end
 
-    def self.check_for_dependents(kegs, casks: [], named_args: [])
+    def self.check_for_dependents!(kegs, casks: [], named_args: [])
       return false unless (result = InstalledDependents.find_some_installed_dependents(kegs, casks:))
 
       DependentsMessage.new(*result, named_args:).output
@@ -133,7 +133,7 @@ module Homebrew
       def output
         ofail <<~EOS
           Refusing to uninstall #{reqs.to_sentence}
-          because #{(reqs.count == 1) ? "it" : "they"} #{are_required_by_deps}.
+          because #{reqs.one? ? "it" : "they"} #{are_required_by_deps}.
           You can override this and force removal with:
             #{sample_command}
         EOS
@@ -146,8 +146,8 @@ module Homebrew
       end
 
       def are_required_by_deps
-        "#{(reqs.count == 1) ? "is" : "are"} required by #{deps.to_sentence}, " \
-          "which #{(deps.count == 1) ? "is" : "are"} currently installed"
+        "#{reqs.one? ? "is" : "are"} required by #{deps.to_sentence}, " \
+          "which #{deps.one? ? "is" : "are"} currently installed"
       end
     end
 
diff --git a/Library/Homebrew/unversioned_cask_checker.rb b/Library/Homebrew/unversioned_cask_checker.rb
index 6570507469..195ecdd184 100644
--- a/Library/Homebrew/unversioned_cask_checker.rb
+++ b/Library/Homebrew/unversioned_cask_checker.rb
@@ -72,17 +72,17 @@ module Homebrew
 
     sig { returns(T::Boolean) }
     def single_app_cask?
-      apps.count == 1
+      apps.one?
     end
 
     sig { returns(T::Boolean) }
     def single_qlplugin_cask?
-      qlplugins.count == 1
+      qlplugins.one?
     end
 
     sig { returns(T::Boolean) }
     def single_pkg_cask?
-      pkgs.count == 1
+      pkgs.one?
     end
 
     # Filter paths to `Info.plist` files so that ones belonging
@@ -222,14 +222,14 @@ module Homebrew
             unique_info_plist_versions =
               top_level_info_plist_paths.filter_map { |i| BundleVersion.from_info_plist(i)&.nice_version }
                                         .uniq
-            return unique_info_plist_versions.first if unique_info_plist_versions.count == 1
+            return unique_info_plist_versions.first if unique_info_plist_versions.one?
 
             package_info_path = extract_dir/"PackageInfo"
             if package_info_path.exist?
               if (version = BundleVersion.from_package_info(package_info_path))
                 return version.nice_version
               end
-            elsif packages.count == 1
+            elsif packages.one?
               onoe "#{pkg_path.basename} does not contain a `PackageInfo` file."
             end
 
diff --git a/Library/Homebrew/utils.rb b/Library/Homebrew/utils.rb
index 3c61fba3df..6e261ebdfa 100644
--- a/Library/Homebrew/utils.rb
+++ b/Library/Homebrew/utils.rb
@@ -6,6 +6,8 @@ require "context"
 module Homebrew
   extend Context
 
+  # Need to keep this naming as-is for backwards compatibility.
+  # rubocop:disable Naming/PredicateMethod
   def self._system(cmd, *args, **options)
     pid = fork do
       yield if block_given?
@@ -20,6 +22,7 @@ module Homebrew
     Process.wait(T.must(pid))
     $CHILD_STATUS.success?
   end
+  # rubocop:enable Naming/PredicateMethod
 
   def self.system(cmd, *args, **options)
     if verbose?
diff --git a/Library/Homebrew/utils/analytics.rb b/Library/Homebrew/utils/analytics.rb
index 003290f824..b06ecea5e9 100644
--- a/Library/Homebrew/utils/analytics.rb
+++ b/Library/Homebrew/utils/analytics.rb
@@ -445,7 +445,7 @@ module Utils
           format "%#{index_width}s", index_header
         formatted_name_with_options_header =
           format "%-#{name_with_options_width}s",
-                 name_with_options_header[0..name_with_options_width-1]
+                 name_with_options_header[0..(name_with_options_width-1)]
         formatted_count_header =
           format "%#{count_width}s", count_header
         formatted_percent_header =
@@ -464,7 +464,7 @@ module Utils
           formatted_index = format "%-#{index_width}s", formatted_index
           formatted_name_with_options =
             format "%-#{name_with_options_width}s",
-                   name_with_options[0..name_with_options_width-1]
+                   name_with_options[0..(name_with_options_width-1)]
           formatted_count = format "%#{count_width}s", format_count(count)
           formatted_percent = if total_count.zero?
             format "%#{percent_width}s", format_percent(0)
diff --git a/Library/Homebrew/utils/github/actions.rb b/Library/Homebrew/utils/github/actions.rb
index 1d7cade0f2..45390fcdd1 100644
--- a/Library/Homebrew/utils/github/actions.rb
+++ b/Library/Homebrew/utils/github/actions.rb
@@ -45,7 +45,7 @@ module GitHub
         line: T.nilable(Integer)
       ).returns(T::Boolean)
     }
-    def self.puts_annotation_if_env_set(type, message, file: nil, line: nil)
+    def self.puts_annotation_if_env_set!(type, message, file: nil, line: nil)
       # Don't print annotations during tests, too messy to handle these.
       return false if ENV.fetch("HOMEBREW_TESTS", false)
       return false unless env_set?
diff --git a/Library/Homebrew/version.rb b/Library/Homebrew/version.rb
index 8d455e75fb..769fdd62d4 100644
--- a/Library/Homebrew/version.rb
+++ b/Library/Homebrew/version.rb
@@ -776,6 +776,6 @@ class Version
 
   sig { params(first: Integer, second: Integer).returns(Integer) }
   def max(first, second)
-    (first > second) ? first : second
+    [first, second].max
   end
 end
diff --git a/docs/.rubocop.yml b/docs/.rubocop.yml
index cc101165e6..14a4d70231 100644
--- a/docs/.rubocop.yml
+++ b/docs/.rubocop.yml
@@ -37,6 +37,8 @@ Style/TopLevelMethodDefinition:
 Lint/NonAtomicFileOperation:
   Enabled: false
 
-# The markdown linter config files don't need to be typed strict.
+# We're not using Sorbet for the documentation.
 Sorbet/StrictSigil:
   Enabled: false
+Sorbet/BlockMethodDefinition:
+  Enabled: false