diff --git a/.github/workflows/ext.yml b/.github/workflows/ext.yml
new file mode 100644
index 00000000..f3b6c3f1
--- /dev/null
+++ b/.github/workflows/ext.yml
@@ -0,0 +1,51 @@
+name: Ext Tests
+
+on:
+  schedule: [ cron: '0 0 * * *' ]
+  pull_request:
+
+jobs:
+  appraise:
+    runs-on: ubuntu-latest
+    strategy:
+      max-parallel: 1
+      matrix:
+        ruby:
+          - '3.2'
+          - '3.3'
+          - '3.4'
+
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Set up Ruby
+        uses: ruby/setup-ruby@v1
+        with:
+          ruby-version: ${{ matrix.ruby }}
+          bundler-cache: true
+
+      - name: Cache Appraisal gems
+        id: cache-appraisal-gems
+        uses: actions/cache@v4
+        with:
+          path: vendor/bundle
+          key: ${{ runner.os }}-appraisals-${{ matrix.ruby }}-${{ hashFiles('gemfiles/*.gemfile.lock') }}
+          restore-keys: |
+            ${{ runner.os }}-appraisals-${{ matrix.ruby }}-
+      
+      - name: Resolve appraisals dependencies
+        run: |
+          bundle config path vendor/bundle
+          bundle exec appraisal install 
+
+      - name: Run all versioned appraisals
+        if: ${{ github.event_name != 'schedule' }}
+        run: bundle exec rake appraise
+        env:
+          TEST_PG_URL: ${{ secrets.TEST_PG_URL }}
+
+      - name: Run rails_main appraisal
+        if: ${{ github.event_name == 'schedule' }}
+        run: bundle exec appraisal rails_main rspec spec/ext/*
+        env:
+          TEST_PG_URL: ${{ secrets.TEST_PG_URL }}
diff --git a/.gitignore b/.gitignore
index 2bde5c3d..d2979490 100644
--- a/.gitignore
+++ b/.gitignore
@@ -13,3 +13,4 @@ Gemfile.lock
 
 # rspec failure tracking
 .rspec_status
+
diff --git a/.rspec b/.rspec
index 34c5164d..68deb10f 100644
--- a/.rspec
+++ b/.rspec
@@ -1,3 +1,4 @@
 --format documentation
 --color
 --require spec_helper
+--exclude-pattern 'spec/ext/**/**_spec.rb'
diff --git a/Appraisals b/Appraisals
new file mode 100644
index 00000000..03473de2
--- /dev/null
+++ b/Appraisals
@@ -0,0 +1,19 @@
+appraise "rails_7_0" do
+  gem "activerecord", "~> 7.0.0"
+end
+
+appraise "rails_7_1" do
+  gem "activerecord", "~> 7.1.0"
+end
+
+appraise "rails_7_2" do
+  gem "activerecord", "~> 7.2.0"
+end
+
+appraise "rails_8_0" do
+  gem "activerecord", "~> 8.0.0"
+end
+
+# appraise "rails_main" do
+#   gem "activerecord", github: "rails/rails"
+# end
diff --git a/Gemfile b/Gemfile
index b8735d3b..7b7c6560 100644
--- a/Gemfile
+++ b/Gemfile
@@ -22,4 +22,5 @@ group :test do
   gem "websocket-client-simple"
   gem "prism"
   gem "redis-client"
+  gem "appraisal", "~> 2.5"
 end
diff --git a/Rakefile b/Rakefile
index b6ae7341..15887255 100644
--- a/Rakefile
+++ b/Rakefile
@@ -6,3 +6,17 @@ require "rspec/core/rake_task"
 RSpec::Core::RakeTask.new(:spec)
 
 task default: :spec
+
+task :appraise do |_, args|
+  # Pulls all the Rails versions from the Appraisal file
+  rails_versions = `appraisal list`.split("\n")
+  # Since we want to test against the main branch separately,
+  # we remove it from the list.
+  rails_versions.delete("rails_main")
+
+  rails_versions.each do |rails_version|
+    puts ">> Appraising #{rails_version}"
+
+    system("bundle exec appraisal #{rails_version} rspec spec/ext/*")
+  end
+end
diff --git a/gemfiles/rails_7_0.gemfile b/gemfiles/rails_7_0.gemfile
new file mode 100644
index 00000000..67d72cb8
--- /dev/null
+++ b/gemfiles/rails_7_0.gemfile
@@ -0,0 +1,25 @@
+# This file was generated by Appraisal
+
+source "https://rubygems.org"
+
+gem "rake", "~> 13.0"
+gem "rspec", "~> 3.0"
+gem "yard"
+gem "rubocop", "~> 1.65.0", require: false
+gem "activerecord", "~> 7.0.0"
+
+group :test do
+  gem "http"
+  gem "pg"
+  gem "mysql2"
+  gem "bigdecimal"
+  gem "connection_pool", "~> 2.0"
+  gem "rbnacl"
+  gem "domain_name"
+  gem "websocket-client-simple"
+  gem "prism"
+  gem "redis-client"
+  gem "appraisal", "~> 2.5"
+end
+
+gemspec path: "../"
diff --git a/gemfiles/rails_7_0.gemfile.lock b/gemfiles/rails_7_0.gemfile.lock
new file mode 100644
index 00000000..55a158fa
--- /dev/null
+++ b/gemfiles/rails_7_0.gemfile.lock
@@ -0,0 +1,165 @@
+PATH
+  remote: ..
+  specs:
+    rage-rb (1.15.0)
+      rack (~> 2.0)
+      rack-test (~> 2.1)
+      rage-iodine (~> 4.1)
+      rake (>= 12.0)
+      thor (~> 1.0)
+      zeitwerk (~> 2.6)
+
+GEM
+  remote: https://rubygems.org/
+  specs:
+    activemodel (7.0.8.7)
+      activesupport (= 7.0.8.7)
+    activerecord (7.0.8.7)
+      activemodel (= 7.0.8.7)
+      activesupport (= 7.0.8.7)
+    activesupport (7.0.8.7)
+      concurrent-ruby (~> 1.0, >= 1.0.2)
+      i18n (>= 1.6, < 2)
+      minitest (>= 5.1)
+      tzinfo (~> 2.0)
+    addressable (2.8.7)
+      public_suffix (>= 2.0.2, < 7.0)
+    appraisal (2.5.0)
+      bundler
+      rake
+      thor (>= 0.14.0)
+    ast (2.4.3)
+    base64 (0.3.0)
+    bigdecimal (3.2.2)
+    concurrent-ruby (1.3.5)
+    connection_pool (2.5.3)
+    diff-lcs (1.6.2)
+    domain_name (0.6.20240107)
+    event_emitter (0.2.6)
+    ffi (1.17.2)
+    ffi (1.17.2-aarch64-linux-gnu)
+    ffi (1.17.2-aarch64-linux-musl)
+    ffi (1.17.2-arm-linux-gnu)
+    ffi (1.17.2-arm-linux-musl)
+    ffi (1.17.2-arm64-darwin)
+    ffi (1.17.2-x86-linux-gnu)
+    ffi (1.17.2-x86-linux-musl)
+    ffi (1.17.2-x86_64-darwin)
+    ffi (1.17.2-x86_64-linux-gnu)
+    ffi (1.17.2-x86_64-linux-musl)
+    ffi-compiler (1.3.2)
+      ffi (>= 1.15.5)
+      rake
+    http (5.3.1)
+      addressable (~> 2.8)
+      http-cookie (~> 1.0)
+      http-form_data (~> 2.2)
+      llhttp-ffi (~> 0.5.0)
+    http-cookie (1.0.8)
+      domain_name (~> 0.5)
+    http-form_data (2.3.0)
+    i18n (1.14.7)
+      concurrent-ruby (~> 1.0)
+    json (2.12.2)
+    language_server-protocol (3.17.0.5)
+    llhttp-ffi (0.5.1)
+      ffi-compiler (~> 1.0)
+      rake (~> 13.0)
+    minitest (5.25.5)
+    mutex_m (0.3.0)
+    mysql2 (0.5.6)
+    parallel (1.27.0)
+    parser (3.3.8.0)
+      ast (~> 2.4.1)
+      racc
+    pg (1.5.9)
+    prism (1.4.0)
+    public_suffix (6.0.2)
+    racc (1.8.1)
+    rack (2.2.17)
+    rack-test (2.2.0)
+      rack (>= 1.3)
+    rage-iodine (4.1.0)
+    rainbow (3.1.1)
+    rake (13.3.0)
+    rbnacl (7.1.2)
+      ffi (~> 1)
+    redis-client (0.25.0)
+      connection_pool
+    regexp_parser (2.10.0)
+    rexml (3.4.1)
+    rspec (3.13.1)
+      rspec-core (~> 3.13.0)
+      rspec-expectations (~> 3.13.0)
+      rspec-mocks (~> 3.13.0)
+    rspec-core (3.13.5)
+      rspec-support (~> 3.13.0)
+    rspec-expectations (3.13.5)
+      diff-lcs (>= 1.2.0, < 2.0)
+      rspec-support (~> 3.13.0)
+    rspec-mocks (3.13.5)
+      diff-lcs (>= 1.2.0, < 2.0)
+      rspec-support (~> 3.13.0)
+    rspec-support (3.13.4)
+    rubocop (1.65.1)
+      json (~> 2.3)
+      language_server-protocol (>= 3.17.0)
+      parallel (~> 1.10)
+      parser (>= 3.3.0.2)
+      rainbow (>= 2.2.2, < 4.0)
+      regexp_parser (>= 2.4, < 3.0)
+      rexml (>= 3.2.5, < 4.0)
+      rubocop-ast (>= 1.31.1, < 2.0)
+      ruby-progressbar (~> 1.7)
+      unicode-display_width (>= 2.4.0, < 3.0)
+    rubocop-ast (1.45.1)
+      parser (>= 3.3.7.2)
+      prism (~> 1.4)
+    ruby-progressbar (1.13.0)
+    thor (1.3.2)
+    tzinfo (2.0.6)
+      concurrent-ruby (~> 1.0)
+    unicode-display_width (2.6.0)
+    websocket (1.2.11)
+    websocket-client-simple (0.9.0)
+      base64
+      event_emitter
+      mutex_m
+      websocket
+    yard (0.9.37)
+    zeitwerk (2.7.3)
+
+PLATFORMS
+  aarch64-linux-gnu
+  aarch64-linux-musl
+  arm-linux-gnu
+  arm-linux-musl
+  arm64-darwin
+  ruby
+  x86-linux-gnu
+  x86-linux-musl
+  x86_64-darwin
+  x86_64-linux-gnu
+  x86_64-linux-musl
+
+DEPENDENCIES
+  activerecord (~> 7.0.0)
+  appraisal (~> 2.5)
+  bigdecimal
+  connection_pool (~> 2.0)
+  domain_name
+  http
+  mysql2
+  pg
+  prism
+  rage-rb!
+  rake (~> 13.0)
+  rbnacl
+  redis-client
+  rspec (~> 3.0)
+  rubocop (~> 1.65.0)
+  websocket-client-simple
+  yard
+
+BUNDLED WITH
+   2.6.5
diff --git a/gemfiles/rails_7_1.gemfile b/gemfiles/rails_7_1.gemfile
new file mode 100644
index 00000000..8b1f6190
--- /dev/null
+++ b/gemfiles/rails_7_1.gemfile
@@ -0,0 +1,25 @@
+# This file was generated by Appraisal
+
+source "https://rubygems.org"
+
+gem "rake", "~> 13.0"
+gem "rspec", "~> 3.0"
+gem "yard"
+gem "rubocop", "~> 1.65.0", require: false
+gem "activerecord", "~> 7.1.0"
+
+group :test do
+  gem "http"
+  gem "pg"
+  gem "mysql2"
+  gem "bigdecimal"
+  gem "connection_pool", "~> 2.0"
+  gem "rbnacl"
+  gem "domain_name"
+  gem "websocket-client-simple"
+  gem "prism"
+  gem "redis-client"
+  gem "appraisal", "~> 2.5"
+end
+
+gemspec path: "../"
diff --git a/gemfiles/rails_7_1.gemfile.lock b/gemfiles/rails_7_1.gemfile.lock
new file mode 100644
index 00000000..13138baa
--- /dev/null
+++ b/gemfiles/rails_7_1.gemfile.lock
@@ -0,0 +1,179 @@
+PATH
+  remote: ..
+  specs:
+    rage-rb (1.15.0)
+      rack (~> 2.0)
+      rack-test (~> 2.1)
+      rage-iodine (~> 4.1)
+      rake (>= 12.0)
+      thor (~> 1.0)
+      zeitwerk (~> 2.6)
+
+GEM
+  remote: https://rubygems.org/
+  specs:
+    activemodel (7.1.5.1)
+      activesupport (= 7.1.5.1)
+    activerecord (7.1.5.1)
+      activemodel (= 7.1.5.1)
+      activesupport (= 7.1.5.1)
+      timeout (>= 0.4.0)
+    activesupport (7.1.5.1)
+      base64
+      benchmark (>= 0.3)
+      bigdecimal
+      concurrent-ruby (~> 1.0, >= 1.0.2)
+      connection_pool (>= 2.2.5)
+      drb
+      i18n (>= 1.6, < 2)
+      logger (>= 1.4.2)
+      minitest (>= 5.1)
+      mutex_m
+      securerandom (>= 0.3)
+      tzinfo (~> 2.0)
+    addressable (2.8.7)
+      public_suffix (>= 2.0.2, < 7.0)
+    appraisal (2.5.0)
+      bundler
+      rake
+      thor (>= 0.14.0)
+    ast (2.4.3)
+    base64 (0.3.0)
+    benchmark (0.4.1)
+    bigdecimal (3.2.2)
+    concurrent-ruby (1.3.5)
+    connection_pool (2.5.3)
+    diff-lcs (1.6.2)
+    domain_name (0.6.20240107)
+    drb (2.2.3)
+    event_emitter (0.2.6)
+    ffi (1.17.2)
+    ffi (1.17.2-aarch64-linux-gnu)
+    ffi (1.17.2-aarch64-linux-musl)
+    ffi (1.17.2-arm-linux-gnu)
+    ffi (1.17.2-arm-linux-musl)
+    ffi (1.17.2-arm64-darwin)
+    ffi (1.17.2-x86-linux-gnu)
+    ffi (1.17.2-x86-linux-musl)
+    ffi (1.17.2-x86_64-darwin)
+    ffi (1.17.2-x86_64-linux-gnu)
+    ffi (1.17.2-x86_64-linux-musl)
+    ffi-compiler (1.3.2)
+      ffi (>= 1.15.5)
+      rake
+    http (5.3.1)
+      addressable (~> 2.8)
+      http-cookie (~> 1.0)
+      http-form_data (~> 2.2)
+      llhttp-ffi (~> 0.5.0)
+    http-cookie (1.0.8)
+      domain_name (~> 0.5)
+    http-form_data (2.3.0)
+    i18n (1.14.7)
+      concurrent-ruby (~> 1.0)
+    json (2.12.2)
+    language_server-protocol (3.17.0.5)
+    llhttp-ffi (0.5.1)
+      ffi-compiler (~> 1.0)
+      rake (~> 13.0)
+    logger (1.7.0)
+    minitest (5.25.5)
+    mutex_m (0.3.0)
+    mysql2 (0.5.6)
+    parallel (1.27.0)
+    parser (3.3.8.0)
+      ast (~> 2.4.1)
+      racc
+    pg (1.5.9)
+    prism (1.4.0)
+    public_suffix (6.0.2)
+    racc (1.8.1)
+    rack (2.2.17)
+    rack-test (2.2.0)
+      rack (>= 1.3)
+    rage-iodine (4.1.0)
+    rainbow (3.1.1)
+    rake (13.3.0)
+    rbnacl (7.1.2)
+      ffi (~> 1)
+    redis-client (0.25.0)
+      connection_pool
+    regexp_parser (2.10.0)
+    rexml (3.4.1)
+    rspec (3.13.1)
+      rspec-core (~> 3.13.0)
+      rspec-expectations (~> 3.13.0)
+      rspec-mocks (~> 3.13.0)
+    rspec-core (3.13.5)
+      rspec-support (~> 3.13.0)
+    rspec-expectations (3.13.5)
+      diff-lcs (>= 1.2.0, < 2.0)
+      rspec-support (~> 3.13.0)
+    rspec-mocks (3.13.5)
+      diff-lcs (>= 1.2.0, < 2.0)
+      rspec-support (~> 3.13.0)
+    rspec-support (3.13.4)
+    rubocop (1.65.1)
+      json (~> 2.3)
+      language_server-protocol (>= 3.17.0)
+      parallel (~> 1.10)
+      parser (>= 3.3.0.2)
+      rainbow (>= 2.2.2, < 4.0)
+      regexp_parser (>= 2.4, < 3.0)
+      rexml (>= 3.2.5, < 4.0)
+      rubocop-ast (>= 1.31.1, < 2.0)
+      ruby-progressbar (~> 1.7)
+      unicode-display_width (>= 2.4.0, < 3.0)
+    rubocop-ast (1.45.1)
+      parser (>= 3.3.7.2)
+      prism (~> 1.4)
+    ruby-progressbar (1.13.0)
+    securerandom (0.4.1)
+    thor (1.3.2)
+    timeout (0.4.3)
+    tzinfo (2.0.6)
+      concurrent-ruby (~> 1.0)
+    unicode-display_width (2.6.0)
+    websocket (1.2.11)
+    websocket-client-simple (0.9.0)
+      base64
+      event_emitter
+      mutex_m
+      websocket
+    yard (0.9.37)
+    zeitwerk (2.7.3)
+
+PLATFORMS
+  aarch64-linux-gnu
+  aarch64-linux-musl
+  arm-linux-gnu
+  arm-linux-musl
+  arm64-darwin
+  ruby
+  x86-linux-gnu
+  x86-linux-musl
+  x86_64-darwin
+  x86_64-linux-gnu
+  x86_64-linux-musl
+
+DEPENDENCIES
+  activerecord (~> 7.1.0)
+  appraisal (~> 2.5)
+  bigdecimal
+  connection_pool (~> 2.0)
+  domain_name
+  http
+  mysql2
+  pg
+  prism
+  rage-rb!
+  rake (~> 13.0)
+  rbnacl
+  redis-client
+  rspec (~> 3.0)
+  rubocop (~> 1.65.0)
+  websocket-client-simple
+  yard
+
+BUNDLED WITH
+   2.6.5
diff --git a/gemfiles/rails_7_2.gemfile b/gemfiles/rails_7_2.gemfile
new file mode 100644
index 00000000..05e410a3
--- /dev/null
+++ b/gemfiles/rails_7_2.gemfile
@@ -0,0 +1,25 @@
+# This file was generated by Appraisal
+
+source "https://rubygems.org"
+
+gem "rake", "~> 13.0"
+gem "rspec", "~> 3.0"
+gem "yard"
+gem "rubocop", "~> 1.65.0", require: false
+gem "activerecord", "~> 7.2.0"
+
+group :test do
+  gem "http"
+  gem "pg"
+  gem "mysql2"
+  gem "bigdecimal"
+  gem "connection_pool", "~> 2.0"
+  gem "rbnacl"
+  gem "domain_name"
+  gem "websocket-client-simple"
+  gem "prism"
+  gem "redis-client"
+  gem "appraisal", "~> 2.5"
+end
+
+gemspec path: "../"
diff --git a/gemfiles/rails_7_2.gemfile.lock b/gemfiles/rails_7_2.gemfile.lock
new file mode 100644
index 00000000..30cdfa54
--- /dev/null
+++ b/gemfiles/rails_7_2.gemfile.lock
@@ -0,0 +1,178 @@
+PATH
+  remote: ..
+  specs:
+    rage-rb (1.15.0)
+      rack (~> 2.0)
+      rack-test (~> 2.1)
+      rage-iodine (~> 4.1)
+      rake (>= 12.0)
+      thor (~> 1.0)
+      zeitwerk (~> 2.6)
+
+GEM
+  remote: https://rubygems.org/
+  specs:
+    activemodel (7.2.2.1)
+      activesupport (= 7.2.2.1)
+    activerecord (7.2.2.1)
+      activemodel (= 7.2.2.1)
+      activesupport (= 7.2.2.1)
+      timeout (>= 0.4.0)
+    activesupport (7.2.2.1)
+      base64
+      benchmark (>= 0.3)
+      bigdecimal
+      concurrent-ruby (~> 1.0, >= 1.3.1)
+      connection_pool (>= 2.2.5)
+      drb
+      i18n (>= 1.6, < 2)
+      logger (>= 1.4.2)
+      minitest (>= 5.1)
+      securerandom (>= 0.3)
+      tzinfo (~> 2.0, >= 2.0.5)
+    addressable (2.8.7)
+      public_suffix (>= 2.0.2, < 7.0)
+    appraisal (2.5.0)
+      bundler
+      rake
+      thor (>= 0.14.0)
+    ast (2.4.3)
+    base64 (0.3.0)
+    benchmark (0.4.1)
+    bigdecimal (3.2.2)
+    concurrent-ruby (1.3.5)
+    connection_pool (2.5.3)
+    diff-lcs (1.6.2)
+    domain_name (0.6.20240107)
+    drb (2.2.3)
+    event_emitter (0.2.6)
+    ffi (1.17.2)
+    ffi (1.17.2-aarch64-linux-gnu)
+    ffi (1.17.2-aarch64-linux-musl)
+    ffi (1.17.2-arm-linux-gnu)
+    ffi (1.17.2-arm-linux-musl)
+    ffi (1.17.2-arm64-darwin)
+    ffi (1.17.2-x86-linux-gnu)
+    ffi (1.17.2-x86-linux-musl)
+    ffi (1.17.2-x86_64-darwin)
+    ffi (1.17.2-x86_64-linux-gnu)
+    ffi (1.17.2-x86_64-linux-musl)
+    ffi-compiler (1.3.2)
+      ffi (>= 1.15.5)
+      rake
+    http (5.3.1)
+      addressable (~> 2.8)
+      http-cookie (~> 1.0)
+      http-form_data (~> 2.2)
+      llhttp-ffi (~> 0.5.0)
+    http-cookie (1.0.8)
+      domain_name (~> 0.5)
+    http-form_data (2.3.0)
+    i18n (1.14.7)
+      concurrent-ruby (~> 1.0)
+    json (2.12.2)
+    language_server-protocol (3.17.0.5)
+    llhttp-ffi (0.5.1)
+      ffi-compiler (~> 1.0)
+      rake (~> 13.0)
+    logger (1.7.0)
+    minitest (5.25.5)
+    mutex_m (0.3.0)
+    mysql2 (0.5.6)
+    parallel (1.27.0)
+    parser (3.3.8.0)
+      ast (~> 2.4.1)
+      racc
+    pg (1.5.9)
+    prism (1.4.0)
+    public_suffix (6.0.2)
+    racc (1.8.1)
+    rack (2.2.17)
+    rack-test (2.2.0)
+      rack (>= 1.3)
+    rage-iodine (4.1.0)
+    rainbow (3.1.1)
+    rake (13.3.0)
+    rbnacl (7.1.2)
+      ffi (~> 1)
+    redis-client (0.25.0)
+      connection_pool
+    regexp_parser (2.10.0)
+    rexml (3.4.1)
+    rspec (3.13.1)
+      rspec-core (~> 3.13.0)
+      rspec-expectations (~> 3.13.0)
+      rspec-mocks (~> 3.13.0)
+    rspec-core (3.13.5)
+      rspec-support (~> 3.13.0)
+    rspec-expectations (3.13.5)
+      diff-lcs (>= 1.2.0, < 2.0)
+      rspec-support (~> 3.13.0)
+    rspec-mocks (3.13.5)
+      diff-lcs (>= 1.2.0, < 2.0)
+      rspec-support (~> 3.13.0)
+    rspec-support (3.13.4)
+    rubocop (1.65.1)
+      json (~> 2.3)
+      language_server-protocol (>= 3.17.0)
+      parallel (~> 1.10)
+      parser (>= 3.3.0.2)
+      rainbow (>= 2.2.2, < 4.0)
+      regexp_parser (>= 2.4, < 3.0)
+      rexml (>= 3.2.5, < 4.0)
+      rubocop-ast (>= 1.31.1, < 2.0)
+      ruby-progressbar (~> 1.7)
+      unicode-display_width (>= 2.4.0, < 3.0)
+    rubocop-ast (1.45.1)
+      parser (>= 3.3.7.2)
+      prism (~> 1.4)
+    ruby-progressbar (1.13.0)
+    securerandom (0.4.1)
+    thor (1.3.2)
+    timeout (0.4.3)
+    tzinfo (2.0.6)
+      concurrent-ruby (~> 1.0)
+    unicode-display_width (2.6.0)
+    websocket (1.2.11)
+    websocket-client-simple (0.9.0)
+      base64
+      event_emitter
+      mutex_m
+      websocket
+    yard (0.9.37)
+    zeitwerk (2.7.3)
+
+PLATFORMS
+  aarch64-linux-gnu
+  aarch64-linux-musl
+  arm-linux-gnu
+  arm-linux-musl
+  arm64-darwin
+  ruby
+  x86-linux-gnu
+  x86-linux-musl
+  x86_64-darwin
+  x86_64-linux-gnu
+  x86_64-linux-musl
+
+DEPENDENCIES
+  activerecord (~> 7.2.0)
+  appraisal (~> 2.5)
+  bigdecimal
+  connection_pool (~> 2.0)
+  domain_name
+  http
+  mysql2
+  pg
+  prism
+  rage-rb!
+  rake (~> 13.0)
+  rbnacl
+  redis-client
+  rspec (~> 3.0)
+  rubocop (~> 1.65.0)
+  websocket-client-simple
+  yard
+
+BUNDLED WITH
+   2.6.5
diff --git a/gemfiles/rails_8_0.gemfile b/gemfiles/rails_8_0.gemfile
new file mode 100644
index 00000000..6d389719
--- /dev/null
+++ b/gemfiles/rails_8_0.gemfile
@@ -0,0 +1,25 @@
+# This file was generated by Appraisal
+
+source "https://rubygems.org"
+
+gem "rake", "~> 13.0"
+gem "rspec", "~> 3.0"
+gem "yard"
+gem "rubocop", "~> 1.65.0", require: false
+gem "activerecord", "~> 8.0.0"
+
+group :test do
+  gem "http"
+  gem "pg"
+  gem "mysql2"
+  gem "bigdecimal"
+  gem "connection_pool", "~> 2.0"
+  gem "rbnacl"
+  gem "domain_name"
+  gem "websocket-client-simple"
+  gem "prism"
+  gem "redis-client"
+  gem "appraisal", "~> 2.5"
+end
+
+gemspec path: "../"
diff --git a/gemfiles/rails_8_0.gemfile.lock b/gemfiles/rails_8_0.gemfile.lock
new file mode 100644
index 00000000..1b6b6498
--- /dev/null
+++ b/gemfiles/rails_8_0.gemfile.lock
@@ -0,0 +1,180 @@
+PATH
+  remote: ..
+  specs:
+    rage-rb (1.15.0)
+      rack (~> 2.0)
+      rack-test (~> 2.1)
+      rage-iodine (~> 4.1)
+      rake (>= 12.0)
+      thor (~> 1.0)
+      zeitwerk (~> 2.6)
+
+GEM
+  remote: https://rubygems.org/
+  specs:
+    activemodel (8.0.2)
+      activesupport (= 8.0.2)
+    activerecord (8.0.2)
+      activemodel (= 8.0.2)
+      activesupport (= 8.0.2)
+      timeout (>= 0.4.0)
+    activesupport (8.0.2)
+      base64
+      benchmark (>= 0.3)
+      bigdecimal
+      concurrent-ruby (~> 1.0, >= 1.3.1)
+      connection_pool (>= 2.2.5)
+      drb
+      i18n (>= 1.6, < 2)
+      logger (>= 1.4.2)
+      minitest (>= 5.1)
+      securerandom (>= 0.3)
+      tzinfo (~> 2.0, >= 2.0.5)
+      uri (>= 0.13.1)
+    addressable (2.8.7)
+      public_suffix (>= 2.0.2, < 7.0)
+    appraisal (2.5.0)
+      bundler
+      rake
+      thor (>= 0.14.0)
+    ast (2.4.3)
+    base64 (0.3.0)
+    benchmark (0.4.1)
+    bigdecimal (3.2.2)
+    concurrent-ruby (1.3.5)
+    connection_pool (2.5.3)
+    diff-lcs (1.6.2)
+    domain_name (0.6.20240107)
+    drb (2.2.3)
+    event_emitter (0.2.6)
+    ffi (1.17.2)
+    ffi (1.17.2-aarch64-linux-gnu)
+    ffi (1.17.2-aarch64-linux-musl)
+    ffi (1.17.2-arm-linux-gnu)
+    ffi (1.17.2-arm-linux-musl)
+    ffi (1.17.2-arm64-darwin)
+    ffi (1.17.2-x86-linux-gnu)
+    ffi (1.17.2-x86-linux-musl)
+    ffi (1.17.2-x86_64-darwin)
+    ffi (1.17.2-x86_64-linux-gnu)
+    ffi (1.17.2-x86_64-linux-musl)
+    ffi-compiler (1.3.2)
+      ffi (>= 1.15.5)
+      rake
+    http (5.3.1)
+      addressable (~> 2.8)
+      http-cookie (~> 1.0)
+      http-form_data (~> 2.2)
+      llhttp-ffi (~> 0.5.0)
+    http-cookie (1.0.8)
+      domain_name (~> 0.5)
+    http-form_data (2.3.0)
+    i18n (1.14.7)
+      concurrent-ruby (~> 1.0)
+    json (2.12.2)
+    language_server-protocol (3.17.0.5)
+    llhttp-ffi (0.5.1)
+      ffi-compiler (~> 1.0)
+      rake (~> 13.0)
+    logger (1.7.0)
+    minitest (5.25.5)
+    mutex_m (0.3.0)
+    mysql2 (0.5.6)
+    parallel (1.27.0)
+    parser (3.3.8.0)
+      ast (~> 2.4.1)
+      racc
+    pg (1.5.9)
+    prism (1.4.0)
+    public_suffix (6.0.2)
+    racc (1.8.1)
+    rack (2.2.17)
+    rack-test (2.2.0)
+      rack (>= 1.3)
+    rage-iodine (4.1.0)
+    rainbow (3.1.1)
+    rake (13.3.0)
+    rbnacl (7.1.2)
+      ffi (~> 1)
+    redis-client (0.25.0)
+      connection_pool
+    regexp_parser (2.10.0)
+    rexml (3.4.1)
+    rspec (3.13.1)
+      rspec-core (~> 3.13.0)
+      rspec-expectations (~> 3.13.0)
+      rspec-mocks (~> 3.13.0)
+    rspec-core (3.13.5)
+      rspec-support (~> 3.13.0)
+    rspec-expectations (3.13.5)
+      diff-lcs (>= 1.2.0, < 2.0)
+      rspec-support (~> 3.13.0)
+    rspec-mocks (3.13.5)
+      diff-lcs (>= 1.2.0, < 2.0)
+      rspec-support (~> 3.13.0)
+    rspec-support (3.13.4)
+    rubocop (1.65.1)
+      json (~> 2.3)
+      language_server-protocol (>= 3.17.0)
+      parallel (~> 1.10)
+      parser (>= 3.3.0.2)
+      rainbow (>= 2.2.2, < 4.0)
+      regexp_parser (>= 2.4, < 3.0)
+      rexml (>= 3.2.5, < 4.0)
+      rubocop-ast (>= 1.31.1, < 2.0)
+      ruby-progressbar (~> 1.7)
+      unicode-display_width (>= 2.4.0, < 3.0)
+    rubocop-ast (1.45.1)
+      parser (>= 3.3.7.2)
+      prism (~> 1.4)
+    ruby-progressbar (1.13.0)
+    securerandom (0.4.1)
+    thor (1.3.2)
+    timeout (0.4.3)
+    tzinfo (2.0.6)
+      concurrent-ruby (~> 1.0)
+    unicode-display_width (2.6.0)
+    uri (1.0.3)
+    websocket (1.2.11)
+    websocket-client-simple (0.9.0)
+      base64
+      event_emitter
+      mutex_m
+      websocket
+    yard (0.9.37)
+    zeitwerk (2.7.3)
+
+PLATFORMS
+  aarch64-linux-gnu
+  aarch64-linux-musl
+  arm-linux-gnu
+  arm-linux-musl
+  arm64-darwin
+  ruby
+  x86-linux-gnu
+  x86-linux-musl
+  x86_64-darwin
+  x86_64-linux-gnu
+  x86_64-linux-musl
+
+DEPENDENCIES
+  activerecord (~> 8.0.0)
+  appraisal (~> 2.5)
+  bigdecimal
+  connection_pool (~> 2.0)
+  domain_name
+  http
+  mysql2
+  pg
+  prism
+  rage-rb!
+  rake (~> 13.0)
+  rbnacl
+  redis-client
+  rspec (~> 3.0)
+  rubocop (~> 1.65.0)
+  websocket-client-simple
+  yard
+
+BUNDLED WITH
+   2.6.5
diff --git a/rage.gemspec b/rage.gemspec
index b5d39bae..79536e02 100644
--- a/rage.gemspec
+++ b/rage.gemspec
@@ -20,7 +20,7 @@ Gem::Specification.new do |spec|
   # The `git ls-files -z` loads the files in the RubyGem that have been added into git.
   spec.files = Dir.chdir(__dir__) do
     `git ls-files -z`.split("\x0").reject do |f|
-      (File.expand_path(f) == __FILE__) || f.start_with?(*%w[bin/ test/ spec/ features/ .git .circleci appveyor .rubocop])
+      (File.expand_path(f) == __FILE__) || f.start_with?(*%w[bin/ gemfiles/ test/ spec/ features/ .git .circleci appveyor .rubocop])
     end
   end
   spec.bindir = "exe"
diff --git a/spec/ext/active_record/connection_pool_spec.rb b/spec/ext/active_record/connection_pool_spec.rb
new file mode 100644
index 00000000..27495504
--- /dev/null
+++ b/spec/ext/active_record/connection_pool_spec.rb
@@ -0,0 +1,125 @@
+# frozen_string_literal: true
+
+require "active_record"
+
+RSpec.describe Rage::Ext::ActiveRecord::ConnectionPool do
+  subject { ActiveRecord::Base.connection_pool }
+
+  before :all do
+    Fiber.set_scheduler(Rage::FiberScheduler.new)
+    ActiveRecord::Base.establish_connection(url: "#{ENV["TEST_PG_URL"]}")
+    ActiveRecord::Base.connection_pool.extend(Rage::Ext::ActiveRecord::ConnectionPool)
+  end
+
+  after :all do
+    Fiber.set_scheduler(nil)
+  end
+
+  around do |example|
+    # we need to init the extension before every test to refresh the subscriptions
+    subject.__init_rage_extension
+
+    within_reactor do
+      example.call
+      -> {}
+    end
+
+    # cleanup - remove the connections
+    subject.connections.each do |conn|
+      conn.disconnect!
+      subject.__remove__(conn)
+    end
+  end
+
+  describe "#with_connection" do
+    it "checks out a connection" do
+      subject.with_connection do |conn|
+        expect(conn.execute("select 1")).to be_a(PG::Result)
+      end
+    end
+
+    it "allows nested calls" do
+      subject.with_connection do |conn|
+        expect(conn.execute("select 1")).to be_a(PG::Result)
+        subject.with_connection do |new_conn|
+          expect(conn.execute("select 2")).to be_a(PG::Result)
+        end
+      end
+    end
+
+    it "correctly checks connections in and out" do
+      50.times do
+        subject.with_connection do |conn|
+          expect(conn.execute("select 1")).to be_a(PG::Result)
+        end
+      end
+    end
+
+    it "correctly checks connections in and out in different fibers" do
+      50.times.map {
+        Fiber.schedule do
+          subject.with_connection do |conn|
+            expect(conn.execute("select 1")).to be_a(PG::Result)
+          end
+        end
+      }.then { |fibers| Fiber.await(fibers) }
+    end
+  end
+
+  describe "#release_connection" do
+    it "correctly releases connections" do
+      20.times.map {
+        Fiber.schedule do
+          conn = subject.connection
+          sleep 0.2
+          subject.release_connection
+        end
+      }.then { |fibers| Fiber.await(fibers) }
+    end
+  end
+
+  describe "#active_connection?" do
+    it "returns false if there is an active connection" do
+      expect(subject.active_connection?).to be_falsey
+    end
+
+    it "returns true if there is an active connection" do
+      subject.connection
+      expect(subject.active_connection?).to be_truthy
+    ensure
+      subject.release_connection
+    end
+
+    it "works correctly with with_connection" do
+      subject.with_connection do
+        expect(subject.active_connection?).to be_truthy
+
+        subject.with_connection do
+          expect(subject.active_connection?).to be_truthy
+        end
+      end
+
+      expect(subject.active_connection?).to be_falsey
+    end
+
+    it "doesn't share connections between fibers" do
+      subject.connection
+
+      Fiber.await(
+        Fiber.schedule { expect(subject.active_connection?).to be_falsey }
+      )
+    ensure
+      subject.release_connection
+    end
+
+    it "doesn't share connections between threads" do
+      subject.connection
+
+      Thread.new {
+        expect(subject.active_connection?).to be_falsey
+      }.join
+    ensure
+      subject.release_connection
+    end
+  end
+end