diff --git a/.devcontainer/Dockerfile b/.devcontainer/Dockerfile
index 12ed4ff109..80cc6357f4 100644
--- a/.devcontainer/Dockerfile
+++ b/.devcontainer/Dockerfile
@@ -1,4 +1,4 @@
-FROM puppet/pdk:latest
+FROM docker.io/puppet/pdk:latest
 
 # [Optional] Uncomment this section to install additional packages.
 # RUN apt-get update && export DEBIAN_FRONTEND=noninteractive \
diff --git a/metadata.json b/metadata.json
index edabaeb3e9..fda7d4f390 100644
--- a/metadata.json
+++ b/metadata.json
@@ -26,7 +26,8 @@
       "operatingsystemrelease": [
         "18.04",
         "20.04",
-        "22.04"
+        "22.04",
+        "24.04"
       ]
     }
   ],
diff --git a/provision.yaml b/provision.yaml
index ed5c33baf6..24cf0f1e9c 100644
--- a/provision.yaml
+++ b/provision.yaml
@@ -18,6 +18,8 @@ docker_ub_6:
   images:
   - litmusimage/ubuntu:18.04
   - litmusimage/ubuntu:20.04
+  - litmusimage/ubuntu:22.04
+  - litmusimage/ubuntu:24.04
 docker_el7:
   provisioner: docker
   images: []
@@ -28,6 +30,8 @@ release_checks_6:
   - debian-10-x86_64
   - ubuntu-1804-x86_64
   - ubuntu-2004-x86_64
+  - ubuntu-2204-x86_64
+  - ubuntu-2404-x86_64
 release_checks_7:
   provisioner: abs
   images:
@@ -35,3 +39,5 @@ release_checks_7:
   - debian-10-x86_64
   - ubuntu-1804-x86_64
   - ubuntu-2004-x86_64
+  - ubuntu-2204-x86_64
+  - ubuntu-2404-x86_64
diff --git a/spec/classes/apt_backports_spec.rb b/spec/classes/apt_backports_spec.rb
index e051913aae..2ebef212a1 100644
--- a/spec/classes/apt_backports_spec.rb
+++ b/spec/classes/apt_backports_spec.rb
@@ -5,52 +5,20 @@
 describe 'apt::backports', type: :class do
   let(:pre_condition) { 'include apt' }
 
-  describe 'debian/ubuntu tests' do
-    context 'with defaults on debian' do
-      let(:facts) do
-        {
-          os: {
-            family: 'Debian',
-            name: 'Debian',
-            release: {
-              full: '12.5',
-              major: '12',
-              minor: '5'
-            },
-            distro: {
-              codename: 'bookworm',
-              id: 'Debian'
-            }
-          }
-        }
-      end
-
-      it {
-        expect(subject).to contain_apt__source('backports').with(
-          location: 'http://deb.debian.org/debian',
-          repos: 'main contrib non-free non-free-firmware',
-          release: 'bookworm-backports',
-          pin: {
-            'priority' => 200,
-            'codename' => 'bookworm-backports'
-          },
-          keyring: '/usr/share/keyrings/debian-archive-keyring.gpg',
-        )
-      }
-    end
-
-    context 'with defaults on ubuntu' do
+  # Shared examples for Ubuntu tests
+  shared_examples 'ubuntu backports' do |release_major, release_full, codename|
+    context "with defaults on ubuntu #{release_major}" do
       let(:facts) do
         {
           os: {
             family: 'Debian',
             name: 'Ubuntu',
             release: {
-              major: '22.04',
-              full: '22.04'
+              major: release_major,
+              full: release_full
             },
             distro: {
-              codename: 'jammy',
+              codename:,
               id: 'Ubuntu'
             }
           }
@@ -61,28 +29,28 @@
         expect(subject).to contain_apt__source('backports').with(
           location: 'http://archive.ubuntu.com/ubuntu',
           repos: 'main universe multiverse restricted',
-          release: 'jammy-backports',
+          release: "#{codename}-backports",
           pin: {
             'priority' => 200,
-            'release' => 'jammy-backports'
+            'release' => "#{codename}-backports"
           },
           keyring: '/usr/share/keyrings/ubuntu-archive-keyring.gpg',
         )
       }
     end
 
-    context 'with everything set' do
+    context "with everything set on ubuntu #{release_major}" do
       let(:facts) do
         {
           os: {
             family: 'Debian',
             name: 'Ubuntu',
             release: {
-              major: '22.04',
-              full: '22.04'
+              major: release_major,
+              full: release_full
             },
             distro: {
-              codename: 'jammy',
+              codename:,
               id: 'Ubuntu'
             }
           }
@@ -109,18 +77,18 @@
       }
     end
 
-    context 'when set things with hashes' do
+    context "when set things with hashes on ubuntu #{release_major}" do
       let(:facts) do
         {
           os: {
             family: 'Debian',
             name: 'Ubuntu',
             release: {
-              major: '22.04',
-              full: '22.04'
+              major: release_major,
+              full: release_full
             },
             distro: {
-              codename: 'jammy',
+              codename:,
               id: 'Ubuntu'
             }
           }
@@ -146,82 +114,128 @@
     end
   end
 
-  describe 'validation' do
-    let(:facts) do
-      {
-        os: {
-          family: 'Debian',
-          name: 'Ubuntu',
-          release: {
-            major: '22.04',
-            full: '22.04'
-          },
-          distro: {
-            codename: 'jammy',
-            id: 'Ubuntu'
-          }
-        }
-      }
-    end
-
-    context 'with invalid location' do
-      let(:params) do
+  # Shared examples for validation tests
+  shared_examples 'validation tests' do |release_major, release_full, codename|
+    describe "validation on ubuntu #{release_major}" do
+      let(:facts) do
         {
-          location: true
+          os: {
+            family: 'Debian',
+            name: 'Ubuntu',
+            release: {
+              major: release_major,
+              full: release_full
+            },
+            distro: {
+              codename:,
+              id: 'Ubuntu'
+            }
+          }
         }
       end
 
-      it do
-        expect(subject).to raise_error(Puppet::Error, %r{expects a})
-      end
-    end
+      context 'with invalid location' do
+        let(:params) do
+          {
+            location: true
+          }
+        end
 
-    context 'with invalid release' do
-      let(:params) do
-        {
-          release: true
-        }
+        it do
+          expect(subject).to raise_error(Puppet::Error, %r{expects a})
+        end
       end
 
-      it do
-        expect(subject).to raise_error(Puppet::Error, %r{expects a})
-      end
-    end
+      context 'with invalid release' do
+        let(:params) do
+          {
+            release: true
+          }
+        end
 
-    context 'with invalid repos' do
-      let(:params) do
-        {
-          repos: true
-        }
+        it do
+          expect(subject).to raise_error(Puppet::Error, %r{expects a})
+        end
       end
 
-      it do
-        expect(subject).to raise_error(Puppet::Error, %r{expects a})
+      context 'with invalid repos' do
+        let(:params) do
+          {
+            repos: true
+          }
+        end
+
+        it do
+          expect(subject).to raise_error(Puppet::Error, %r{expects a})
+        end
       end
-    end
 
-    context 'with invalid key' do
-      let(:params) do
-        {
-          key: true
-        }
+      context 'with invalid key' do
+        let(:params) do
+          {
+            key: true
+          }
+        end
+
+        it do
+          expect(subject).to raise_error(Puppet::Error, %r{expects a})
+        end
       end
 
-      it do
-        expect(subject).to raise_error(Puppet::Error, %r{expects a})
+      context 'with invalid pin' do
+        let(:params) do
+          {
+            pin: true
+          }
+        end
+
+        it do
+          expect(subject).to raise_error(Puppet::Error, %r{expects a})
+        end
       end
     end
+  end
 
-    context 'with invalid pin' do
-      let(:params) do
+  describe 'debian/ubuntu tests' do
+    context 'with defaults on debian' do
+      let(:facts) do
         {
-          pin: true
+          os: {
+            family: 'Debian',
+            name: 'Debian',
+            release: {
+              full: '12.5',
+              major: '12',
+              minor: '5'
+            },
+            distro: {
+              codename: 'bookworm',
+              id: 'Debian'
+            }
+          }
         }
       end
 
-      it do
-        expect(subject).to raise_error(Puppet::Error, %r{expects a})
-      end
+      it {
+        expect(subject).to contain_apt__source('backports').with(
+          location: 'http://deb.debian.org/debian',
+          repos: 'main contrib non-free non-free-firmware',
+          release: 'bookworm-backports',
+          pin: {
+            'priority' => 200,
+            'codename' => 'bookworm-backports'
+          },
+          keyring: '/usr/share/keyrings/debian-archive-keyring.gpg',
+        )
+      }
     end
+
+    # Include shared examples for Ubuntu versions
+    include_examples 'ubuntu backports', '22.04', '22.04', 'jammy'
+    include_examples 'ubuntu backports', '24.04', '24.04', 'noble'
   end
+
+  # Include shared validation examples for Ubuntu versions
+  include_examples 'validation tests', '22.04', '22.04', 'jammy'
+  include_examples 'validation tests', '24.04', '24.04', 'noble'
 end
diff --git a/spec/classes/apt_spec.rb b/spec/classes/apt_spec.rb
index 51cc7eb459..624a7787b6 100644
--- a/spec/classes/apt_spec.rb
+++ b/spec/classes/apt_spec.rb
@@ -358,6 +358,34 @@
           }
         }
       },
+      'Ubuntu 22.04' => {
+        os: {
+          family: 'Debian',
+          name: 'Ubuntu',
+          release: {
+            major: '22.04',
+            full: '22.04'
+          },
+          distro: {
+            codename: 'jammy',
+            id: 'Ubuntu'
+          }
+        }
+      },
+      'Ubuntu 24.04' => {
+        os: {
+          family: 'Debian',
+          name: 'Ubuntu',
+          release: {
+            major: '24.04',
+            full: '24.04'
+          },
+          distro: {
+            codename: 'noble',
+            id: 'Ubuntu'
+          }
+        }
+      },
       'Debian 9.0' => {
         os: {
           family: 'Debian',