diff --git a/.github/workflows/codeql-analysis.yml b/.github/workflows/codeql-analysis.yml
new file mode 100644
index 00000000..55c9224a
--- /dev/null
+++ b/.github/workflows/codeql-analysis.yml
@@ -0,0 +1,79 @@
+# For most projects, this workflow file will not need changing; you simply need
+# to commit it to your repository.
+#
+# You may wish to alter this file to override the set of languages analyzed,
+# or to provide custom queries or build logic.
+#
+# ******** NOTE ********
+# We have attempted to detect the languages in your repository. Please check
+# the `language` matrix defined below to confirm you have the correct set of
+# supported CodeQL languages.
+#
+name: "CodeQL"
+on:
+  push:
+    branches: [ "master" ]
+  pull_request:
+    # The branches below must be a subset of the branches above
+    branches: [ "master" ]
+  schedule:
+    - cron: '45 8 * * 3'
+
+jobs:
+  analyze:
+    name: Analyze
+    runs-on: ubuntu-latest
+    permissions:
+      actions: read
+      contents: read
+      security-events: write
+
+    strategy:
+      fail-fast: false
+      matrix:
+        language: [ 'ruby' ]
+        # CodeQL supports [ 'cpp', 'csharp', 'go', 'java', 'javascript', 'python', 'ruby' ]
+        # Learn more about CodeQL language support at https://aka.ms/codeql-docs/language-support
+
+    steps:
+    - name: Checkout repository
+      uses: actions/checkout@v3
+
+    # Initializes the CodeQL tools for scanning.
+    - name: Initialize CodeQL
+      uses: github/codeql-action/init@v2
+      with:
+        languages: ${{ matrix.language }}
+        # If you wish to specify custom queries, you can do so here or in a config file.
+        # By default, queries listed here will override any specified in a config file.
+        # Prefix the list here with "+" to use these queries and those in the config file.
+        
+        # Details on CodeQL's query packs refer to : https://docs.github.com/en/code-security/code-scanning/automatically-scanning-your-code-for-vulnerabilities-and-errors/configuring-code-scanning#using-queries-in-ql-packs
+        # queries: security-extended,security-and-quality
+
+        
+    # Autobuild attempts to build any compiled languages  (C/C++, C#, or Java).
+    # If this step fails, then you should remove it and run the build manually (see below)
+    - name: Autobuild
+      uses: github/codeql-action/autobuild@v2
+
+    # ℹ️ Command-line programs to run using the OS shell.
+    # 📚 See https://docs.github.com/en/actions/using-workflows/workflow-syntax-for-github-actions#jobsjob_idstepsrun
+
+    #   If the Autobuild fails above, remove it and uncomment the following three lines. 
+    #   modify them (or add more) to build your code if your project, please refer to the EXAMPLE below for guidance.
+
+    # - run: |
+    #   echo "Run, Build Application using script"
+    #   ./location_of_script_within_repo/buildscript.sh
+
+    - name: Perform CodeQL Analysis
+      uses: github/codeql-action/analyze@v2
+      with:
+        category: "/language:${{matrix.language}}"
+    - name: Setup Ruby, JRuby and TruffleRuby
+      # You may pin to the exact commit or the version.
+      # uses: ruby/setup-ruby@3068fa83f9cbd7ae106cac45483635a2f3a195c9
+      uses: ruby/setup-ruby@v1.117.0
+      with:
+        bundler: true
diff --git a/.gitignore b/.gitignore
index a2e2d631..c507a689 100644
--- a/.gitignore
+++ b/.gitignore
@@ -4,3 +4,5 @@
 pkg
 Gemfile.lock
 coverage
+/.idea
+/gemfiles/*.gemfile.lock
diff --git a/.travis.base.yml b/.travis.base.yml
new file mode 100644
index 00000000..0623d46b
--- /dev/null
+++ b/.travis.base.yml
@@ -0,0 +1,38 @@
+os: linux
+dist: xenial
+language: ruby
+cache: bundler
+script: "bundle exec rake test"
+rvm:
+  - 2.0
+  - 2.1
+  - 2.2
+  - 2.3
+  - 2.4
+  - 2.5
+  - 2.6
+  - 2.7
+  - 3.0
+  - head
+  - rbx
+gemfile:
+  - gemfiles/rails_3.0.gemfile
+  - gemfiles/rails_3.1.gemfile
+  - gemfiles/rails_3.2.gemfile
+  - gemfiles/rails_4.0.gemfile
+  - gemfiles/rails_4.1.gemfile
+  - gemfiles/rails_4.2.gemfile
+  - gemfiles/rails_5.0.gemfile
+  - gemfiles/rails_5.1.gemfile
+  - gemfiles/rails_5.2.gemfile
+  - gemfiles/rails_6.0.gemfile
+  - gemfiles/rails_6.1.gemfile
+  - gemfiles/rails_7_edge.gemfile
+  - gemfiles/datamapper.gemfile
+  - gemfiles/sequel.gemfile
+jobs:
+  allow_failures:
+    - rvm: head
+    - gemfile: gemfiles/rails_7_edge.gemfile
+    - rvm: rbx
+  fast_finish: false
diff --git a/.travis.yml b/.travis.yml
index f75b2ede..a180ad9d 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,60 +1,158 @@
-sudo: false
+---
+os: linux
+dist: xenial
 language: ruby
 cache: bundler
+script: bundle exec rake test
 rvm:
-  - 2.0
-  - 2.1
-  - 2.2.2
-  - 2.3.0
-  - 2.4.0
-  - 2.5.0
-  - rbx
-env:
-  - ACTIVERECORD=3.0.0
-  - ACTIVERECORD=3.1.0
-  - ACTIVERECORD=3.2.0
-  - ACTIVERECORD=4.0.0
-  - ACTIVERECORD=4.1.0
-  - ACTIVERECORD=4.2.0
-  - ACTIVERECORD=5.0.0
-  - ACTIVERECORD=5.1.1
-matrix:
-  exclude:
-    - rvm: 2.0
-      env: ACTIVERECORD=5.0.0
-    - rvm: 2.0
-      env: ACTIVERECORD=5.1.1
-    - rvm: 2.1
-      env: ACTIVERECORD=5.0.0
-    - rvm: 2.1
-      env: ACTIVERECORD=5.1.1
-    - rvm: 2.4.0
-      env: ACTIVERECORD=3.0.0
-    - rvm: 2.4.0
-      env: ACTIVERECORD=3.1.0
-    - rvm: 2.4.0
-      env: ACTIVERECORD=3.2.0
-    - rvm: 2.4.0
-      env: ACTIVERECORD=4.0.0
-    - rvm: 2.4.0
-      env: ACTIVERECORD=4.1.0
-    - rvm: 2.5.0
-      env: ACTIVERECORD=3.0.0
-    - rvm: 2.5.0
-      env: ACTIVERECORD=3.1.0
-    - rvm: 2.5.0
-      env: ACTIVERECORD=3.2.0
-    - rvm: 2.5.0
-      env: ACTIVERECORD=4.0.0
-    - rvm: 2.5.0
-      env: ACTIVERECORD=4.1.0
-    - rvm: rbx
-      env: ACTIVERECORD=5.0.0
-    - rvm: rbx
-      env: ACTIVERECORD=5.1.1
+- 2.0
+- 2.1
+- 2.2
+- 2.3
+- 2.4
+- 2.5
+- 2.6
+- 2.7
+- 3.0
+- head
+- rbx
+gemfile:
+- gemfiles/rails_3.0.gemfile
+- gemfiles/rails_3.1.gemfile
+- gemfiles/rails_3.2.gemfile
+- gemfiles/rails_4.0.gemfile
+- gemfiles/rails_4.1.gemfile
+- gemfiles/rails_4.2.gemfile
+- gemfiles/rails_5.0.gemfile
+- gemfiles/rails_5.1.gemfile
+- gemfiles/rails_5.2.gemfile
+- gemfiles/rails_6.0.gemfile
+- gemfiles/rails_6.1.gemfile
+- gemfiles/rails_7_edge.gemfile
+- gemfiles/datamapper.gemfile
+- gemfiles/sequel.gemfile
+jobs:
   allow_failures:
-    - rvm: rbx
-  fast_finish: true
-addons:
-  code_climate:
-    repo_token: a90435ed4954dd6e9f3697a20c5bc3754f67d94703f870e8fc7b00f69f5b2d06
+  - rvm: head
+  - gemfile: gemfiles/rails_7_edge.gemfile
+  - rvm: rbx
+  - gemfile: gemfiles/rails_4.2.gemfile
+    rvm: '2.0'
+  - gemfile: gemfiles/rails_4.2.gemfile
+    rvm: '2.1'
+  - gemfile: gemfiles/rails_4.2.gemfile
+    rvm: '2.2'
+  - gemfile: gemfiles/rails_4.2.gemfile
+    rvm: '2.3'
+  - gemfile: gemfiles/rails_4.2.gemfile
+    rvm: '2.4'
+  fast_finish: false
+  exclude:
+  - gemfile: gemfiles/rails_3.0.gemfile
+    rvm: '2.4'
+  - gemfile: gemfiles/rails_3.0.gemfile
+    rvm: '2.5'
+  - gemfile: gemfiles/rails_3.0.gemfile
+    rvm: '2.6'
+  - gemfile: gemfiles/rails_3.0.gemfile
+    rvm: '2.7'
+  - gemfile: gemfiles/rails_3.0.gemfile
+    rvm: '3.0'
+  - gemfile: gemfiles/rails_3.0.gemfile
+    rvm: head
+  - gemfile: gemfiles/rails_3.1.gemfile
+    rvm: '2.4'
+  - gemfile: gemfiles/rails_3.1.gemfile
+    rvm: '2.5'
+  - gemfile: gemfiles/rails_3.1.gemfile
+    rvm: '2.6'
+  - gemfile: gemfiles/rails_3.1.gemfile
+    rvm: '2.7'
+  - gemfile: gemfiles/rails_3.1.gemfile
+    rvm: '3.0'
+  - gemfile: gemfiles/rails_3.1.gemfile
+    rvm: head
+  - gemfile: gemfiles/rails_3.2.gemfile
+    rvm: '2.4'
+  - gemfile: gemfiles/rails_3.2.gemfile
+    rvm: '2.5'
+  - gemfile: gemfiles/rails_3.2.gemfile
+    rvm: '2.6'
+  - gemfile: gemfiles/rails_3.2.gemfile
+    rvm: '2.7'
+  - gemfile: gemfiles/rails_3.2.gemfile
+    rvm: '3.0'
+  - gemfile: gemfiles/rails_3.2.gemfile
+    rvm: head
+  - gemfile: gemfiles/rails_4.0.gemfile
+    rvm: '2.4'
+  - gemfile: gemfiles/rails_4.0.gemfile
+    rvm: '2.5'
+  - gemfile: gemfiles/rails_4.0.gemfile
+    rvm: '2.6'
+  - gemfile: gemfiles/rails_4.0.gemfile
+    rvm: '2.7'
+  - gemfile: gemfiles/rails_4.0.gemfile
+    rvm: '3.0'
+  - gemfile: gemfiles/rails_4.0.gemfile
+    rvm: head
+  - gemfile: gemfiles/rails_4.1.gemfile
+    rvm: '2.4'
+  - gemfile: gemfiles/rails_4.1.gemfile
+    rvm: '2.5'
+  - gemfile: gemfiles/rails_4.1.gemfile
+    rvm: '2.6'
+  - gemfile: gemfiles/rails_4.1.gemfile
+    rvm: '2.7'
+  - gemfile: gemfiles/rails_4.1.gemfile
+    rvm: '3.0'
+  - gemfile: gemfiles/rails_4.1.gemfile
+    rvm: head
+  - gemfile: gemfiles/rails_5.0.gemfile
+    rvm: '2.0'
+  - gemfile: gemfiles/rails_5.0.gemfile
+    rvm: '2.1'
+  - gemfile: gemfiles/rails_5.1.gemfile
+    rvm: '2.0'
+  - gemfile: gemfiles/rails_5.1.gemfile
+    rvm: '2.1'
+  - gemfile: gemfiles/rails_5.2.gemfile
+    rvm: '2.0'
+  - gemfile: gemfiles/rails_5.2.gemfile
+    rvm: '2.1'
+  - gemfile: gemfiles/rails_5.2.gemfile
+    rvm: '2.2'
+  - gemfile: gemfiles/rails_5.2.gemfile
+    rvm: '2.3'
+  - gemfile: gemfiles/rails_5.2.gemfile
+    rvm: '2.4'
+  - gemfile: gemfiles/rails_6.0.gemfile
+    rvm: '2.0'
+  - gemfile: gemfiles/rails_6.0.gemfile
+    rvm: '2.1'
+  - gemfile: gemfiles/rails_6.0.gemfile
+    rvm: '2.2'
+  - gemfile: gemfiles/rails_6.0.gemfile
+    rvm: '2.3'
+  - gemfile: gemfiles/rails_6.0.gemfile
+    rvm: '2.4'
+  - gemfile: gemfiles/rails_6.1.gemfile
+    rvm: '2.0'
+  - gemfile: gemfiles/rails_6.1.gemfile
+    rvm: '2.1'
+  - gemfile: gemfiles/rails_6.1.gemfile
+    rvm: '2.2'
+  - gemfile: gemfiles/rails_6.1.gemfile
+    rvm: '2.3'
+  - gemfile: gemfiles/rails_6.1.gemfile
+    rvm: '2.4'
+  - gemfile: gemfiles/rails_7_edge.gemfile
+    rvm: '2.0'
+  - gemfile: gemfiles/rails_7_edge.gemfile
+    rvm: '2.1'
+  - gemfile: gemfiles/rails_7_edge.gemfile
+    rvm: '2.2'
+  - gemfile: gemfiles/rails_7_edge.gemfile
+    rvm: '2.3'
+  - gemfile: gemfiles/rails_7_edge.gemfile
+    rvm: '2.4'
diff --git a/Appraisals b/Appraisals
new file mode 100644
index 00000000..48cdf6ed
--- /dev/null
+++ b/Appraisals
@@ -0,0 +1,32 @@
+
+SUPPORTED_RAILS_VERSIONS = %w[3.0 3.1 3.2 4.0 4.1 4.2 5.0 5.1 5.2 6.0 6.1]
+
+SUPPORTED_RAILS_VERSIONS.each do |rails_ver|
+  appraise "rails-#{rails_ver}" do
+    gem 'activerecord', "~> #{rails_ver}.x"
+    gem 'actionpack',   "~> #{rails_ver}.x"
+
+    if %w[3.0 3.1 3.2].include?(rails_ver)
+      gem 'sqlite3'
+      #gem 'activerecord-sqlite3-adapter'
+    end
+
+  end
+end
+
+appraise 'rails-7-edge' do
+  gem 'activerecord', git: 'https://github.com/rails/rails', branch: 'main'
+  gem 'actionpack',   git: 'https://github.com/rails/rails', branch: 'main'
+end
+
+appraise 'datamapper' do
+  gem 'datamapper'
+  gem 'dm-sqlite-adapter'
+end
+
+appraise 'sequel' do
+  gem 'sequel'
+end
+
+
+
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 52ef721b..98975883 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,10 @@
 # attr_encrypted #
 
+## 3.2.0 ##
+* Added: Support Rails upto 6.2 and Ruby upto 3.0 (@mvastola)
+* Added: `appraisal` gem to organize testing with different versions of dependencies (@mvastola)
+* Changed: Outdated version dependencies in `gemspec` (@mvastola)
+
 ## 3.1.0 ##
 * Added: Abitilty to encrypt empty values. (@tamird)
 * Added: MIT license
diff --git a/Gemfile b/Gemfile
index fa75df15..7149fa36 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,3 +1,20 @@
 source 'https://rubygems.org'
 
 gemspec
+
+gem 'sqlite3'
+
+if RUBY_VERSION < '2.1.0'
+  gem 'nokogiri'
+  gem 'public_suffix', '< 3.0.0'
+end
+
+platforms :jruby do
+  gem 'activerecord-jdbcsqlite3-adapter'
+  gem 'jdbc-sqlite3', '< 3.8.7' # 3.8.7 is nice and broke
+end
+
+group :development do
+  gem 'wwtd',    require: false
+  gem 'rubocop', require: false
+end
diff --git a/README.md b/README.md
index 87ac7219..8f5e5f1f 100644
--- a/README.md
+++ b/README.md
@@ -1,7 +1,3 @@
-## Maintainer(s) wanted!!!
-
-**If you have an interest in maintaining this project... please see https://github.com/attr-encrypted/attr_encrypted/issues/379**
-
 # attr_encrypted
 
 [![Build Status](https://secure.travis-ci.org/attr-encrypted/attr_encrypted.svg)](https://travis-ci.org/attr-encrypted/attr_encrypted) [![Test Coverage](https://codeclimate.com/github/attr-encrypted/attr_encrypted/badges/coverage.svg)](https://codeclimate.com/github/attr-encrypted/attr_encrypted/coverage) [![Code Climate](https://codeclimate.com/github/attr-encrypted/attr_encrypted/badges/gpa.svg)](https://codeclimate.com/github/attr-encrypted/attr_encrypted) [![Gem Version](https://badge.fury.io/rb/attr_encrypted.svg)](https://badge.fury.io/rb/attr_encrypted) [![security](https://hakiri.io/github/attr-encrypted/attr_encrypted/master.svg)](https://hakiri.io/github/attr-encrypted/attr_encrypted/master)
@@ -10,7 +6,6 @@ Generates attr_accessors that transparently encrypt and decrypt attributes.
 
 It works with ANY class, however, you get a few extra features when you're using it with `ActiveRecord`, `DataMapper`, or `Sequel`.
 
-
 ## Installation
 
 Add attr_encrypted to your gemfile:
diff --git a/Rakefile b/Rakefile
index 3dbc96ce..7f453bb0 100644
--- a/Rakefile
+++ b/Rakefile
@@ -3,6 +3,7 @@
 require 'rake/testtask'
 require 'rdoc/task'
 require "bundler/gem_tasks"
+require 'wwtd/tasks'
 
 desc 'Test the attr_encrypted gem.'
 Rake::TestTask.new(:test) do |t|
@@ -22,4 +23,7 @@ Rake::RDocTask.new(:rdoc) do |rdoc|
 end
 
 desc 'Default: run unit tests.'
-task :default => :test
+if !ENV["APPRAISAL_INITIALIZED"] && !ENV["TRAVIS"]
+  task :default => :appraisal
+end
+#task :default => :test
diff --git a/attr_encrypted.gemspec b/attr_encrypted.gemspec
index 41f96ed9..d214ae0f 100644
--- a/attr_encrypted.gemspec
+++ b/attr_encrypted.gemspec
@@ -7,62 +7,47 @@ require 'attr_encrypted/version'
 require 'date'
 
 Gem::Specification.new do |s|
-  s.name    = 'attr_encrypted'
-  s.version = AttrEncrypted::Version.string
-  s.date    = Date.today
+  s.name        = 'attr_encrypted'
+  s.version     = AttrEncrypted::Version.string
 
   s.summary     = 'Encrypt and decrypt attributes'
   s.description = 'Generates attr_accessors that encrypt and decrypt attributes transparently'
 
-  s.authors   = ['Sean Huber', 'S. Brent Faulkner', 'William Monk', 'Stephen Aghaulor']
-  s.email    = ['seah@shuber.io', 'sbfaulkner@gmail.com', 'billy.monk@gmail.com', 'saghaulor@gmail.com']
-  s.homepage = 'http://github.com/attr-encrypted/attr_encrypted'
-  s.license = 'MIT'
+  s.authors     = ['Mike Vastola', 'Rob Law', 'Sean Huber', 'S. Brent Faulkner', 'William Monk', 'Stephen Aghaulor']
+  s.email       = ['open-source@dailypay.com']
+  s.license     = 'MIT'
 
-  s.has_rdoc = false
-  s.rdoc_options = ['--line-numbers', '--inline-source', '--main', 'README.rdoc']
+  s.metadata = {
+    'homepage_uri'      => "https://github.com/attr-encrypted/attr_encrypted",
+    'source_code_uri'   => "https://github.com/attr-encrypted/attr_encrypted",
+    'changelog_uri'     => "https://github.com/attr-encrypted/attr_encrypted/blob/master/CHANGELOG.md",
+    'bug_tracker_uri'   => "https://github.com/attr-encrypted/attr_encrypted/issues",
+    'documentation_uri' => "https://rubydoc.info/gems/attr_encrypted",
+    'wiki_uri'          => "https://github.com/attr-encrypted/attr_encrypted/wiki",
+  }
 
-  s.require_paths = ['lib']
+  s.rdoc_options     = %w[--line-numbers --inline-source --main README.rdoc]
+  s.extra_rdoc_files = %w[README.md]
+  s.require_paths    = ['lib']
 
-  s.files      = `git ls-files`.split("\n")
-  s.test_files = `git ls-files -- test/*`.split("\n")
+  s.files            = `git ls-files`.split("\n")
+  s.test_files       = `git ls-files -- test/*`.split("\n")
 
   s.required_ruby_version = '>= 2.0.0'
 
-  s.add_dependency('encryptor', ['~> 3.0.0'])
-  # support for testing with specific active record version
-  activerecord_version = if ENV.key?('ACTIVERECORD')
-    "~> #{ENV['ACTIVERECORD']}"
-  else
-    '>= 2.0.0'
-  end
-  s.add_development_dependency('activerecord', activerecord_version)
-  s.add_development_dependency('actionpack', activerecord_version)
-  s.add_development_dependency('datamapper')
-  s.add_development_dependency('rake')
-  s.add_development_dependency('minitest')
-  s.add_development_dependency('sequel')
-  if RUBY_VERSION < '2.1.0'
-    s.add_development_dependency('nokogiri', '< 1.7.0')
-    s.add_development_dependency('public_suffix', '< 3.0.0')
-  end
-  if defined?(RUBY_ENGINE) && RUBY_ENGINE.to_sym == :jruby
-    s.add_development_dependency('activerecord-jdbcsqlite3-adapter')
-    s.add_development_dependency('jdbc-sqlite3', '< 3.8.7') # 3.8.7 is nice and broke
-  else
-    s.add_development_dependency('sqlite3')
-  end
-  s.add_development_dependency('dm-sqlite-adapter')
-  s.add_development_dependency('simplecov')
-  s.add_development_dependency('simplecov-rcov')
-  s.add_development_dependency("codeclimate-test-reporter", '<= 0.6.0')
+  s.add_dependency             'encryptor',    '~> 3.0.0'
+  s.add_development_dependency 'appraisal'
+  s.add_development_dependency 'rake'
+  s.add_development_dependency 'minitest'
+  s.add_development_dependency 'simplecov'
+  s.add_development_dependency 'simplecov-rcov'
+  s.add_development_dependency 'codeclimate-test-reporter', '<= 0.6.0'
 
-  s.cert_chain  = ['certs/saghaulor.pem']
+  s.cert_chain  = %w[certs/saghaulor.pem]
   s.signing_key = File.expand_path("~/.ssh/gem-private_key.pem") if $0 =~ /gem\z/
 
   s.post_install_message = "\n\n\nWARNING: Several insecure default options and features were deprecated in attr_encrypted v2.0.0.\n
 Additionally, there was a bug in Encryptor v2.0.0 that insecurely encrypted data when using an AES-*-GCM algorithm.\n
 This bug was fixed but introduced breaking changes between v2.x and v3.x.\n
 Please see the README for more information regarding upgrading to attr_encrypted v3.0.0.\n\n\n"
-
 end
diff --git a/gemfiles/datamapper.gemfile b/gemfiles/datamapper.gemfile
new file mode 100644
index 00000000..947dec8f
--- /dev/null
+++ b/gemfiles/datamapper.gemfile
@@ -0,0 +1,19 @@
+# This file was generated by Appraisal
+
+source "https://rubygems.org"
+
+gem "sqlite3"
+gem "datamapper"
+gem "dm-sqlite-adapter"
+
+group :development do
+  gem "wwtd", require: false
+  gem "rubocop", require: false
+end
+
+platforms :jruby do
+  gem "activerecord-jdbcsqlite3-adapter"
+  gem "jdbc-sqlite3", "< 3.8.7"
+end
+
+gemspec path: "../"
diff --git a/gemfiles/rails_3.0.gemfile b/gemfiles/rails_3.0.gemfile
new file mode 100644
index 00000000..6186e5f2
--- /dev/null
+++ b/gemfiles/rails_3.0.gemfile
@@ -0,0 +1,19 @@
+# This file was generated by Appraisal
+
+source "https://rubygems.org"
+
+gem "sqlite3"
+gem "activerecord", "~> 3.0.x"
+gem "actionpack", "~> 3.0.x"
+
+group :development do
+  gem "wwtd", require: false
+  gem "rubocop", require: false
+end
+
+platforms :jruby do
+  gem "activerecord-jdbcsqlite3-adapter"
+  gem "jdbc-sqlite3", "< 3.8.7"
+end
+
+gemspec path: "../"
diff --git a/gemfiles/rails_3.1.gemfile b/gemfiles/rails_3.1.gemfile
new file mode 100644
index 00000000..26d35a83
--- /dev/null
+++ b/gemfiles/rails_3.1.gemfile
@@ -0,0 +1,19 @@
+# This file was generated by Appraisal
+
+source "https://rubygems.org"
+
+gem "sqlite3"
+gem "activerecord", "~> 3.1.x"
+gem "actionpack", "~> 3.1.x"
+
+group :development do
+  gem "wwtd", require: false
+  gem "rubocop", require: false
+end
+
+platforms :jruby do
+  gem "activerecord-jdbcsqlite3-adapter"
+  gem "jdbc-sqlite3", "< 3.8.7"
+end
+
+gemspec path: "../"
diff --git a/gemfiles/rails_3.2.gemfile b/gemfiles/rails_3.2.gemfile
new file mode 100644
index 00000000..57ee512e
--- /dev/null
+++ b/gemfiles/rails_3.2.gemfile
@@ -0,0 +1,19 @@
+# This file was generated by Appraisal
+
+source "https://rubygems.org"
+
+gem "sqlite3"
+gem "activerecord", "~> 3.2.x"
+gem "actionpack", "~> 3.2.x"
+
+group :development do
+  gem "wwtd", require: false
+  gem "rubocop", require: false
+end
+
+platforms :jruby do
+  gem "activerecord-jdbcsqlite3-adapter"
+  gem "jdbc-sqlite3", "< 3.8.7"
+end
+
+gemspec path: "../"
diff --git a/gemfiles/rails_4.0.gemfile b/gemfiles/rails_4.0.gemfile
new file mode 100644
index 00000000..9ff9a3bc
--- /dev/null
+++ b/gemfiles/rails_4.0.gemfile
@@ -0,0 +1,19 @@
+# This file was generated by Appraisal
+
+source "https://rubygems.org"
+
+gem "sqlite3"
+gem "activerecord", "~> 4.0.x"
+gem "actionpack", "~> 4.0.x"
+
+group :development do
+  gem "wwtd", require: false
+  gem "rubocop", require: false
+end
+
+platforms :jruby do
+  gem "activerecord-jdbcsqlite3-adapter"
+  gem "jdbc-sqlite3", "< 3.8.7"
+end
+
+gemspec path: "../"
diff --git a/gemfiles/rails_4.1.gemfile b/gemfiles/rails_4.1.gemfile
new file mode 100644
index 00000000..ac7fb5be
--- /dev/null
+++ b/gemfiles/rails_4.1.gemfile
@@ -0,0 +1,19 @@
+# This file was generated by Appraisal
+
+source "https://rubygems.org"
+
+gem "sqlite3"
+gem "activerecord", "~> 4.1.x"
+gem "actionpack", "~> 4.1.x"
+
+group :development do
+  gem "wwtd", require: false
+  gem "rubocop", require: false
+end
+
+platforms :jruby do
+  gem "activerecord-jdbcsqlite3-adapter"
+  gem "jdbc-sqlite3", "< 3.8.7"
+end
+
+gemspec path: "../"
diff --git a/gemfiles/rails_4.2.gemfile b/gemfiles/rails_4.2.gemfile
new file mode 100644
index 00000000..79b59bf4
--- /dev/null
+++ b/gemfiles/rails_4.2.gemfile
@@ -0,0 +1,19 @@
+# This file was generated by Appraisal
+
+source "https://rubygems.org"
+
+gem "sqlite3"
+gem "activerecord", "~> 4.2.x"
+gem "actionpack", "~> 4.2.x"
+
+group :development do
+  gem "wwtd", require: false
+  gem "rubocop", require: false
+end
+
+platforms :jruby do
+  gem "activerecord-jdbcsqlite3-adapter"
+  gem "jdbc-sqlite3", "< 3.8.7"
+end
+
+gemspec path: "../"
diff --git a/gemfiles/rails_5.0.gemfile b/gemfiles/rails_5.0.gemfile
new file mode 100644
index 00000000..2007eb36
--- /dev/null
+++ b/gemfiles/rails_5.0.gemfile
@@ -0,0 +1,19 @@
+# This file was generated by Appraisal
+
+source "https://rubygems.org"
+
+gem "sqlite3"
+gem "activerecord", "~> 5.0.x"
+gem "actionpack", "~> 5.0.x"
+
+group :development do
+  gem "wwtd", require: false
+  gem "rubocop", require: false
+end
+
+platforms :jruby do
+  gem "activerecord-jdbcsqlite3-adapter"
+  gem "jdbc-sqlite3", "< 3.8.7"
+end
+
+gemspec path: "../"
diff --git a/gemfiles/rails_5.1.gemfile b/gemfiles/rails_5.1.gemfile
new file mode 100644
index 00000000..4359fe23
--- /dev/null
+++ b/gemfiles/rails_5.1.gemfile
@@ -0,0 +1,19 @@
+# This file was generated by Appraisal
+
+source "https://rubygems.org"
+
+gem "sqlite3"
+gem "activerecord", "~> 5.1.x"
+gem "actionpack", "~> 5.1.x"
+
+group :development do
+  gem "wwtd", require: false
+  gem "rubocop", require: false
+end
+
+platforms :jruby do
+  gem "activerecord-jdbcsqlite3-adapter"
+  gem "jdbc-sqlite3", "< 3.8.7"
+end
+
+gemspec path: "../"
diff --git a/gemfiles/rails_5.2.gemfile b/gemfiles/rails_5.2.gemfile
new file mode 100644
index 00000000..c0c34a9c
--- /dev/null
+++ b/gemfiles/rails_5.2.gemfile
@@ -0,0 +1,19 @@
+# This file was generated by Appraisal
+
+source "https://rubygems.org"
+
+gem "sqlite3"
+gem "activerecord", "~> 5.2.x"
+gem "actionpack", "~> 5.2.x"
+
+group :development do
+  gem "wwtd", require: false
+  gem "rubocop", require: false
+end
+
+platforms :jruby do
+  gem "activerecord-jdbcsqlite3-adapter"
+  gem "jdbc-sqlite3", "< 3.8.7"
+end
+
+gemspec path: "../"
diff --git a/gemfiles/rails_6.0.gemfile b/gemfiles/rails_6.0.gemfile
new file mode 100644
index 00000000..faa558d2
--- /dev/null
+++ b/gemfiles/rails_6.0.gemfile
@@ -0,0 +1,19 @@
+# This file was generated by Appraisal
+
+source "https://rubygems.org"
+
+gem "sqlite3"
+gem "activerecord", "~> 6.0.x"
+gem "actionpack", "~> 6.0.x"
+
+group :development do
+  gem "wwtd", require: false
+  gem "rubocop", require: false
+end
+
+platforms :jruby do
+  gem "activerecord-jdbcsqlite3-adapter"
+  gem "jdbc-sqlite3", "< 3.8.7"
+end
+
+gemspec path: "../"
diff --git a/gemfiles/rails_6.1.gemfile b/gemfiles/rails_6.1.gemfile
new file mode 100644
index 00000000..6d2dc9e5
--- /dev/null
+++ b/gemfiles/rails_6.1.gemfile
@@ -0,0 +1,19 @@
+# This file was generated by Appraisal
+
+source "https://rubygems.org"
+
+gem "sqlite3"
+gem "activerecord", "~> 6.1.x"
+gem "actionpack", "~> 6.1.x"
+
+group :development do
+  gem "wwtd", require: false
+  gem "rubocop", require: false
+end
+
+platforms :jruby do
+  gem "activerecord-jdbcsqlite3-adapter"
+  gem "jdbc-sqlite3", "< 3.8.7"
+end
+
+gemspec path: "../"
diff --git a/gemfiles/rails_6.2.gemfile b/gemfiles/rails_6.2.gemfile
new file mode 100644
index 00000000..c5f9fd75
--- /dev/null
+++ b/gemfiles/rails_6.2.gemfile
@@ -0,0 +1,13 @@
+# This file was generated by Appraisal
+
+source "https://rubygems.org"
+
+gem "activerecord", "~> 6.2.x"
+gem "actionpack", "~> 6.2.x"
+
+group :development do
+  gem "wwtd", require: false
+  gem "rubocop", require: false
+end
+
+gemspec path: "../"
diff --git a/gemfiles/rails_7_edge.gemfile b/gemfiles/rails_7_edge.gemfile
new file mode 100644
index 00000000..1124155b
--- /dev/null
+++ b/gemfiles/rails_7_edge.gemfile
@@ -0,0 +1,19 @@
+# This file was generated by Appraisal
+
+source "https://rubygems.org"
+
+gem "sqlite3"
+gem "activerecord", git: "https://github.com/rails/rails", branch: "main"
+gem "actionpack", git: "https://github.com/rails/rails", branch: "main"
+
+group :development do
+  gem "wwtd", require: false
+  gem "rubocop", require: false
+end
+
+platforms :jruby do
+  gem "activerecord-jdbcsqlite3-adapter"
+  gem "jdbc-sqlite3", "< 3.8.7"
+end
+
+gemspec path: "../"
diff --git a/gemfiles/sequel.gemfile b/gemfiles/sequel.gemfile
new file mode 100644
index 00000000..e1932f3b
--- /dev/null
+++ b/gemfiles/sequel.gemfile
@@ -0,0 +1,18 @@
+# This file was generated by Appraisal
+
+source "https://rubygems.org"
+
+gem "sqlite3"
+gem "sequel"
+
+group :development do
+  gem "wwtd", require: false
+  gem "rubocop", require: false
+end
+
+platforms :jruby do
+  gem "activerecord-jdbcsqlite3-adapter"
+  gem "jdbc-sqlite3", "< 3.8.7"
+end
+
+gemspec path: "../"
diff --git a/lib/attr_encrypted/version.rb b/lib/attr_encrypted/version.rb
index 723ebe9f..34d4ea4d 100644
--- a/lib/attr_encrypted/version.rb
+++ b/lib/attr_encrypted/version.rb
@@ -4,7 +4,7 @@ module AttrEncrypted
   # Contains information about this gem's version
   module Version
     MAJOR = 3
-    MINOR = 1
+    MINOR = 2
     PATCH = 0
 
     # Returns a version string by joining <tt>MAJOR</tt>, <tt>MINOR</tt>, and <tt>PATCH</tt> with <tt>'.'</tt>
@@ -15,5 +15,12 @@ module Version
     def self.string
       [MAJOR, MINOR, PATCH].join('.')
     end
+
+    # Return current version as a `Gem::Version` object (for easier comparison)
+    #
+    # @return [Gem::Version] the current version of the gem
+    def get
+      ::Gem::Version.new string
+    end
   end
 end
diff --git a/scripts/generate_travis_excludes.rb b/scripts/generate_travis_excludes.rb
new file mode 100755
index 00000000..1770aa8c
--- /dev/null
+++ b/scripts/generate_travis_excludes.rb
@@ -0,0 +1,81 @@
+#!/usr/bin/env ruby
+
+require 'rubygems'
+require 'yaml'
+
+class String
+  def versionish?
+    ::Gem::Version.correct?(self)
+  end
+end
+
+class Numeric
+  def versionish?
+    true
+  end
+end
+
+TRAVIS_TEMPLATE_PATH = File.expand_path('../.travis.base.yml', __dir__)
+TRAVIS_CONFIG_PATH = File.expand_path('../.travis.yml', __dir__)
+
+GEMFILE_RUBY_VERSIONS = {
+  'gemfiles/rails_3.0.gemfile':    '< 2.4',
+  'gemfiles/rails_3.1.gemfile':    '< 2.4',
+  'gemfiles/rails_3.2.gemfile':    '< 2.4',
+  'gemfiles/rails_4.0.gemfile':    '< 2.4',
+  'gemfiles/rails_4.1.gemfile':    '< 2.4',
+  # apparently supports up to at least ruby 2.5
+  'gemfiles/rails_4.2.gemfile':    '>= 0',
+  'gemfiles/rails_5.0.gemfile':    '>= 2.2',
+  'gemfiles/rails_5.1.gemfile':    '>= 2.2',
+  'gemfiles/rails_5.2.gemfile':    '>= 2.5',
+  'gemfiles/rails_6.0.gemfile':    '>= 2.5',
+  'gemfiles/rails_6.1.gemfile':    '>= 2.5',
+  'gemfiles/rails_7_edge.gemfile': '>= 2.5',
+  #'gemfiles/datamapper.gemfile':   '>= 0',
+  #'gemfiles/sequel.gemfile':       '>= 0',
+}.transform_values { |ver| Gem::Requirement.create(ver.to_s) }
+
+GEMFILE_FAILABLE_RUBY_VERSIONS = {
+  'gemfiles/rails_4.2.gemfile':   '>= 2.5',
+}.transform_values { |ver| Gem::Requirement.create(ver.to_s) }
+
+TREAT_RUBY_HEAD_AS = Gem::Version.new('3.1')
+
+travis_config = YAML.load_file(TRAVIS_TEMPLATE_PATH)
+
+ruby_versions = travis_config['rvm'].select(&:versionish?).map { |ver| Gem::Version.new(ver) }
+ruby_versions << TREAT_RUBY_HEAD_AS
+
+travis_config['jobs'] ||= {}
+excludes  = (travis_config['jobs']['exclude'] ||= [])
+failables = (travis_config['jobs']['allow_failures'] ||= [])
+
+requirement_combinations = GEMFILE_RUBY_VERSIONS.to_a.product(ruby_versions)
+failable_combinations    = GEMFILE_FAILABLE_RUBY_VERSIONS.to_a.product(ruby_versions)
+
+requirement_combinations.each do |((gemfile, constraint), ruby_ver)|
+  next if constraint.satisfied_by?(ruby_ver)
+
+  rvm = ruby_ver == TREAT_RUBY_HEAD_AS ? 'head' : ruby_ver.to_s
+  excludes << {
+    'gemfile' => gemfile.to_s,
+    'rvm'     => rvm
+  }
+end
+
+failable_combinations.each do |((gemfile, constraint), ruby_ver)|
+  next if constraint.satisfied_by?(ruby_ver)
+
+  rvm = ruby_ver == TREAT_RUBY_HEAD_AS ? 'head' : ruby_ver.to_s
+  failables << {
+    'gemfile' => gemfile.to_s,
+    'rvm'     => rvm
+  }
+end
+
+File.open TRAVIS_CONFIG_PATH, 'wt' do |f|
+  YAML.dump(travis_config, f)
+end
+
+printf "Done. (%d excludes and %d allowed failures)\n", excludes.size, failables.size
diff --git a/test/active_record_test.rb b/test/active_record_test.rb
index 8ec31aea..12143773 100644
--- a/test/active_record_test.rb
+++ b/test/active_record_test.rb
@@ -1,6 +1,7 @@
 # frozen_string_literal: true
 
 require_relative 'test_helper'
+return unless defined?(ActiveRecord)
 
 ActiveRecord::Base.establish_connection(adapter: 'sqlite3', database: ':memory:')
 
diff --git a/test/compatibility_test.rb b/test/compatibility_test.rb
index 7585895e..18351533 100644
--- a/test/compatibility_test.rb
+++ b/test/compatibility_test.rb
@@ -2,6 +2,7 @@
 
 # -*- encoding: utf-8 -*-
 require_relative 'test_helper'
+return unless defined?(ActiveRecord)
 
 # Test to ensure that existing representations in database do not break on
 # migrating to new versions of this gem. This ensures that future versions of
diff --git a/test/data_mapper_test.rb b/test/data_mapper_test.rb
index 3fb284a6..7c3dc00f 100644
--- a/test/data_mapper_test.rb
+++ b/test/data_mapper_test.rb
@@ -1,6 +1,7 @@
 # frozen_string_literal: true
 
 require_relative 'test_helper'
+return unless defined?(DataMapper)
 
 DataMapper.setup(:default, 'sqlite3::memory:')
 
diff --git a/test/legacy_active_record_test.rb b/test/legacy_active_record_test.rb
index 80231857..5c43e565 100644
--- a/test/legacy_active_record_test.rb
+++ b/test/legacy_active_record_test.rb
@@ -2,6 +2,7 @@
 
 # -*- encoding: utf-8 -*-
 require_relative 'test_helper'
+return unless defined?(ActiveRecord)
 
 ActiveRecord::Base.establish_connection :adapter => 'sqlite3', :database => ':memory:'
 
diff --git a/test/legacy_data_mapper_test.rb b/test/legacy_data_mapper_test.rb
index 03916dd9..e450b5c9 100644
--- a/test/legacy_data_mapper_test.rb
+++ b/test/legacy_data_mapper_test.rb
@@ -1,6 +1,7 @@
 # frozen_string_literal: true
 
 require_relative 'test_helper'
+return unless defined?(DataMapper)
 
 DataMapper.setup(:default, 'sqlite3::memory:')
 
diff --git a/test/legacy_sequel_test.rb b/test/legacy_sequel_test.rb
index fd46301e..7c67d942 100644
--- a/test/legacy_sequel_test.rb
+++ b/test/legacy_sequel_test.rb
@@ -1,6 +1,7 @@
 # frozen_string_literal: true
 
 require_relative 'test_helper'
+return unless defined?(Sequel)
 
 DB.create_table :legacy_humans do
   primary_key :id
diff --git a/test/sequel_test.rb b/test/sequel_test.rb
index 1df52031..2926ae28 100644
--- a/test/sequel_test.rb
+++ b/test/sequel_test.rb
@@ -1,6 +1,7 @@
 # frozen_string_literal: true
 
 require_relative 'test_helper'
+return unless defined?(Sequel)
 
 DB.create_table :humans do
   primary_key :id