diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 8b2e03a..f5a5316 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -20,9 +20,25 @@ jobs:
           - "3.2"
           - "3.3"
           - "3.4"
+        include:
+          - ruby: "2.7"
+            gemfile: "ruby-2-7"
+          - ruby: "3.0"
+            gemfile: "ruby-3"
+          - ruby: "3.1"
+            gemfile: "ruby-3"
+          - ruby: "3.2"
+            gemfile: "ruby-3"
+          - ruby: "3.3"
+            gemfile: "ruby-3"
+          - ruby: "3.4"
+            gemfile: "ruby-3"
           
     runs-on: ubuntu-latest
 
+    env: # $BUNDLE_GEMFILE must be set at the job level, so it is set for all steps
+      BUNDLE_GEMFILE: gemfiles/${{ matrix.gemfile }}/Gemfile
+    
     steps:
     - uses: actions/checkout@v4
     - name: Set up Ruby
diff --git a/.irbrc b/.irbrc
index 44a097c..b53d5bd 100644
--- a/.irbrc
+++ b/.irbrc
@@ -1,20 +1,23 @@
 ##
 # Load development gems
 #
-require 'debug'
+
+load File.expand_path('ruby_version.rb', Dir.pwd)
+# require 'debug'
 
 
 ##
 # Load all the gem files in /lib
 #
-Dir['./lib/*.rb'].each    { |f| load f }
-Dir['./lib/**/*.rb'].each { |f| load f }
-
+Dir[Dir.pwd + '/lib/*.rb'].each    { |f| load f }
+Dir[Dir.pwd + '/lib/**/*.rb'].each { |f| load f }
 
+puts "LOADED"
 ##
 # Reload all the gem files in /lib
 #
 def reload!
-  Dir['./lib/*.rb'].each    { |f| load f }
-  Dir['./lib/**/*.rb'].each { |f| load f }
+  load File.expand_path('ruby_version.rb', Dir.pwd)
+  Dir[Dir.pwd + '/lib/*.rb'].each    { |f| load f }
+  Dir[Dir.pwd + '/lib/**/*.rb'].each { |f| load f }
 end
diff --git a/.tool-versions b/.tool-versions
new file mode 100644
index 0000000..041df9a
--- /dev/null
+++ b/.tool-versions
@@ -0,0 +1 @@
+ruby 3.4.1
diff --git a/Rakefile b/Rakefile
index b6ae734..b9c0f2b 100644
--- a/Rakefile
+++ b/Rakefile
@@ -2,7 +2,32 @@
 
 require "bundler/gem_tasks"
 require "rspec/core/rake_task"
+require "./ruby_version"
 
 RSpec::Core::RakeTask.new(:spec)
 
 task default: :spec
+
+
+desc "Installs gems using the correct gemfile for the current version of ruby."
+task :bundle do
+  puts "Installing from '#{RubyVersion.gemfile}'"
+  system("bundle --gemfile=#{RubyVersion.gemfile}")
+  system("bundle lock --add-platform x86_64-linux --gemfile=#{RubyVersion.gemfile}")
+end
+
+
+
+desc "Runs bundle outdated for the current version of ruby."
+task :outdated do
+  puts "Checking outdated for '#{RubyVersion.gemfile}'"
+  system("BUNDLE_GEMFILE=#{RubyVersion.gemfile} bundle outdated")
+end
+
+
+
+desc "Runs bundle update for the current version of ruby."
+task :update do
+  puts "Updating for '#{RubyVersion.gemfile}'"
+  system("BUNDLE_GEMFILE=#{RubyVersion.gemfile} bundle update")
+end
diff --git a/gemfiles/ruby-2-7/Gemfile b/gemfiles/ruby-2-7/Gemfile
new file mode 100644
index 0000000..8d8795f
--- /dev/null
+++ b/gemfiles/ruby-2-7/Gemfile
@@ -0,0 +1,14 @@
+# frozen_string_literal: true
+
+source 'https://rubygems.org'
+
+# Specify your gem's dependencies in result_vault.gemspec
+# gemspec
+
+gem 'rake'
+
+gem 'rspec'
+
+gem 'debug'
+
+gem 'amazing_print'
diff --git a/gemfiles/ruby-2-7/Gemfile.lock b/gemfiles/ruby-2-7/Gemfile.lock
new file mode 100644
index 0000000..a735b7a
--- /dev/null
+++ b/gemfiles/ruby-2-7/Gemfile.lock
@@ -0,0 +1,48 @@
+GEM
+  remote: https://rubygems.org/
+  specs:
+    amazing_print (1.6.0)
+    date (3.4.1)
+    debug (1.10.0)
+      irb (~> 1.10)
+      reline (>= 0.3.8)
+    diff-lcs (1.5.1)
+    io-console (0.8.0)
+    irb (1.14.3)
+      rdoc (>= 4.0.0)
+      reline (>= 0.4.2)
+    psych (5.2.2)
+      date
+      stringio
+    rake (13.2.1)
+    rdoc (6.10.0)
+      psych (>= 4.0.0)
+    reline (0.6.0)
+      io-console (~> 0.5)
+    rspec (3.13.0)
+      rspec-core (~> 3.13.0)
+      rspec-expectations (~> 3.13.0)
+      rspec-mocks (~> 3.13.0)
+    rspec-core (3.13.2)
+      rspec-support (~> 3.13.0)
+    rspec-expectations (3.13.3)
+      diff-lcs (>= 1.2.0, < 2.0)
+      rspec-support (~> 3.13.0)
+    rspec-mocks (3.13.2)
+      diff-lcs (>= 1.2.0, < 2.0)
+      rspec-support (~> 3.13.0)
+    rspec-support (3.13.2)
+    stringio (3.1.2)
+
+PLATFORMS
+  arm64-darwin-23
+  x86_64-linux
+
+DEPENDENCIES
+  amazing_print
+  debug
+  rake
+  rspec
+
+BUNDLED WITH
+   2.4.22
diff --git a/Gemfile b/gemfiles/ruby-3/Gemfile
similarity index 96%
rename from Gemfile
rename to gemfiles/ruby-3/Gemfile
index 7163830..de98c60 100644
--- a/Gemfile
+++ b/gemfiles/ruby-3/Gemfile
@@ -3,7 +3,7 @@
 source 'https://rubygems.org'
 
 # Specify your gem's dependencies in result_vault.gemspec
-gemspec
+# gemspec
 
 gem 'rake', '~> 13.0'
 
diff --git a/Gemfile.lock b/gemfiles/ruby-3/Gemfile.lock
similarity index 96%
rename from Gemfile.lock
rename to gemfiles/ruby-3/Gemfile.lock
index 2373d8d..6b15ac0 100644
--- a/Gemfile.lock
+++ b/gemfiles/ruby-3/Gemfile.lock
@@ -1,8 +1,3 @@
-PATH
-  remote: .
-  specs:
-    result_vault (1.4.0)
-
 GEM
   remote: https://rubygems.org/
   specs:
@@ -82,7 +77,6 @@ DEPENDENCIES
   amazing_print
   debug
   rake (~> 13.0)
-  result_vault!
   rspec (~> 3.0)
   rubocop
   simplecov
diff --git a/ruby_version.rb b/ruby_version.rb
new file mode 100644
index 0000000..9baa2ad
--- /dev/null
+++ b/ruby_version.rb
@@ -0,0 +1,91 @@
+##
+# Methods to work with the current ruby version at the MAJOR.MINOR level
+#
+module RubyVersion
+	class << self
+
+		# Returns the latest known version of Ruby
+		def latest_version
+			Gem::Version.new('3.4')
+		end
+
+
+
+		# Returns true if the current verion of Ruby is as defined
+		def latest?
+			is?(latest_version)
+		end
+
+
+		# Returns tru if the current version of Ruby matches the expected version
+		#
+		# expected: anything that can be stringified with String(xxx)
+		#
+		def is?(expected = nil)
+			expected = refined(expected)
+			expected == current
+		end
+
+
+		# Return a Gem::Version of the current Ruby version twith only MJOR.MINOR segments
+		def current
+			@current_version ||= refined RUBY_VERSION
+		end
+
+
+
+		def ==(other)
+			current == refined(other)
+		end
+
+
+
+		def >(other)
+			current > refined(other)
+		end
+
+
+
+		def >=(other)
+			current >= refined(other)
+		end
+
+
+
+		def <(other)
+			current < refined(other)
+		end
+
+
+
+		def <=(other)
+			current <= refined(other)
+		end
+
+
+
+		# Returns the string filename for the current ruby version gemfile
+		def gemfile
+			if current == refined("2.7")
+				"gemfiles/ruby-#{current.to_s.gsub('.','-')}/Gemfile"
+			else
+				"gemfiles/ruby-3/Gemfile"
+			end
+		end
+
+
+    # ======================================================================
+    # = Private
+    # ======================================================================
+
+ 		# Return a Gem::Version from the given version refined down to MAJOR.MINOR segments
+ 		#
+ 		# version: anything that can be stringified with String(xxx)
+ 		#
+		def refined(version)
+			version         = String(version)
+			refined_version = Gem::Version.new(version).release.segments[0..1].join('.')
+			Gem::Version.new(refined_version)
+		end
+	end
+end