diff --git a/.rubocop_todo.yml b/.rubocop_todo.yml
index e5fe937..dfac7ba 100644
--- a/.rubocop_todo.yml
+++ b/.rubocop_todo.yml
@@ -1,6 +1,6 @@
 # This configuration was generated by
 # `rubocop --auto-gen-config`
-# on 2024-05-02 18:53:23 UTC using RuboCop version 1.50.2.
+# on 2024-05-02 19:00:08 UTC using RuboCop version 1.50.2.
 # The point is for the user to remove these configuration records
 # one by one as the offenses are removed from the code base.
 # Note that changes in the inspected code, or installation of new
@@ -157,12 +157,6 @@ Performance/StringInclude:
   Exclude:
     - 'lib/hiera/backend/eyaml/utils.rb'
 
-# Offense count: 1
-# This cop supports unsafe autocorrection (--autocorrect-all).
-Security/IoMethods:
-  Exclude:
-    - 'tools/git_tag_release.rb'
-
 # Offense count: 1
 Security/Open:
   Exclude:
@@ -230,7 +224,7 @@ Style/EnvHome:
 Style/FormatStringToken:
   EnforcedStyle: unannotated
 
-# Offense count: 37
+# Offense count: 36
 # This cop supports unsafe autocorrection (--autocorrect-all).
 # Configuration parameters: EnforcedStyle.
 # SupportedStyles: always, always_true, never
@@ -282,7 +276,7 @@ Style/MutableConstant:
   Exclude:
     - 'lib/hiera/backend/eyaml.rb'
 
-# Offense count: 8
+# Offense count: 4
 # This cop supports unsafe autocorrection (--autocorrect-all).
 # Configuration parameters: EnforcedStyle, AllowedMethods, AllowedPatterns.
 # SupportedStyles: predicate, comparison
@@ -293,7 +287,6 @@ Style/NumericPredicate:
     - 'lib/hiera/backend/eyaml/parser/parser.rb'
     - 'lib/hiera/backend/eyaml/subcommands/edit.rb'
     - 'lib/hiera/backend/eyaml/utils.rb'
-    - 'tools/git_tag_release.rb'
 
 # Offense count: 1
 # This cop supports unsafe autocorrection (--autocorrect-all).
@@ -347,12 +340,11 @@ Style/SelectByRegexp:
   Exclude:
     - 'hiera-eyaml.gemspec'
 
-# Offense count: 2
+# Offense count: 1
 # This cop supports unsafe autocorrection (--autocorrect-all).
 Style/SlicingWithRange:
   Exclude:
     - 'lib/hiera/backend/eyaml/edithelper.rb'
-    - 'tools/git_tag_release.rb'
 
 # Offense count: 4
 # This cop supports unsafe autocorrection (--autocorrect-all).
@@ -369,7 +361,7 @@ Style/StderrPuts:
   Exclude:
     - 'lib/hiera/backend/eyaml/logginghelper.rb'
 
-# Offense count: 12
+# Offense count: 11
 # This cop supports unsafe autocorrection (--autocorrect-all).
 # Configuration parameters: Mode.
 Style/StringConcatenation:
@@ -382,7 +374,6 @@ Style/StringConcatenation:
     - 'lib/hiera/backend/eyaml/subcommands/help.rb'
     - 'lib/hiera/backend/eyaml/subcommands/unknown_command.rb'
     - 'lib/hiera/backend/eyaml/utils.rb'
-    - 'tools/git_tag_release.rb'
 
 # Offense count: 9
 # This cop supports unsafe autocorrection (--autocorrect-all).
diff --git a/Rakefile b/Rakefile
index c3a0c87..da46006 100644
--- a/Rakefile
+++ b/Rakefile
@@ -21,7 +21,6 @@ else
     SimpleCov::Formatter::Codecov,
   ]
 end
-require 'bundler/gem_tasks'
 
 # https://cucumber.io/docs/tools/ruby/
 # https://stackoverflow.com/questions/6473419/using-simplecov-to-display-cucumber-code-coverage
diff --git a/tools/git_tag_release.rb b/tools/git_tag_release.rb
deleted file mode 100755
index eaa437f..0000000
--- a/tools/git_tag_release.rb
+++ /dev/null
@@ -1,98 +0,0 @@
-#!/usr/bin/env ruby
-
-require 'rubygems'
-if Gem::Version.new(RUBY_VERSION) < Gem::Version.new('1.9')
-  warn 'This script requires Ruby >= 1.9'
-  exit 1
-end
-
-require 'open3'
-result = Open3.capture3('git rev-parse --show-toplevel')
-unless result[2].exitstatus == 0
-  warn 'You do not appear to be in a git repository. This script must be run from inside a git repository.'
-  exit 2
-end
-filename = result[0].lines.first.chomp + '/CHANGES.md'
-unless File.exist?(filename)
-  warn 'CHANGES.md not found. Please ensure that CHANGES.md exists.'
-  exit 3
-end
-contents = IO.read(filename)
-
-lines = contents.lines.drop(3).map(&:chomp).reject(&:empty?)
-versions = {}
-currentversion = nil
-versions[nil] = []
-lines.each_with_index do |line, index|
-  if /\A-+\z/.match?(line)
-    versions[currentversion].pop
-    currentversion = lines[index - 1]
-    versions[currentversion] = []
-  else
-    versions[currentversion] << line
-  end
-end
-versions.delete(nil)
-
-def prompt(*args)
-  print(*args)
-  gets.chomp
-end
-
-newest = versions.first[0]
-version = prompt "Version [#{newest}]: "
-version = newest if version.empty?
-
-unless versions[version]
-  warn "Version #{version} is invalid. Valid versions are: #{versions.keys.join(', ')}"
-  exit 4
-end
-
-tagname = "v#{version}"
-
-result = Open3.capture3("git rev-parse #{tagname}")
-if result[2].exitstatus == 0
-  warn "Tag #{tagname} already exists."
-  exit 5
-end
-
-commit = prompt 'Commit: '
-
-result = Open3.capture3("git --no-pager log -1 #{commit} --format='%ci'")
-unless result[2].exitstatus == 0
-  warn "Commit '#{commit}' is not valid."
-  exit result[2].exitstatus
-end
-commitdate = result[0].lines.first.chomp
-
-def word_wrap(line, width)
-  first_prefix = line.match(/([ -]*)/)[1]
-  prefix = ' ' * first_prefix.size
-  real_width = width - (prefix.size * 2)
-  line[prefix.size..-1].gsub(/(^)?(.{1,#{real_width}})(?: +|$)/) do |s|
-    Regexp.last_match(1) ? "#{first_prefix}#{s}\n" : "#{prefix}#{s}\n"
-  end
-end
-
-require 'tempfile'
-begin
-  tf = Tempfile.new('tag-message')
-  tf.puts "Version #{version} release"
-  tf.puts ''
-  tf.puts 'Changes:'
-  versions[version].each do |line|
-    tf.puts word_wrap(line, 80)
-  end
-  tf.flush
-
-  result = Open3.capture3({ 'GIT_COMMITTER_DATE' => commitdate }, "git tag -a #{tagname} #{commit} -F #{tf.path}")
-  warn result[1]
-  if result[2].exitstatus == 0
-    system "git --no-pager show #{tagname} --no-patch"
-    puts ''
-    puts "Tag created. Please push to GitHub with `git push origin #{tagname}`."
-  end
-  exit result[2].exitstatus
-ensure
-  tf.close!
-end
diff --git a/tools/regem.sh b/tools/regem.sh
deleted file mode 100755
index 726ae15..0000000
--- a/tools/regem.sh
+++ /dev/null
@@ -1,11 +0,0 @@
-#!/bin/sh
-
-# ToDo: Remove as 'rake install' task will build and install the latest gem?
-
-gem uninstall hiera-eyaml --executables
-RAKE_OUT=`rake build`
-echo ${RAKE_OUT}
-VERSION=`echo ${RAKE_OUT} | awk '{print $2}'`
-echo Installing version: ${VERSION} ...
-gem install pkg/hiera-eyaml-${VERSION}.gem
-eyaml version