diff --git a/.github/workflows/e2e-tests.yml b/.github/workflows/e2e-tests.yml
index 28c98d0..a21e35d 100644
--- a/.github/workflows/e2e-tests.yml
+++ b/.github/workflows/e2e-tests.yml
@@ -24,17 +24,16 @@ jobs:
       - name: Clear toolcache
         shell: pwsh
         run: __tests__/clear-toolcache.ps1 ${{ runner.os }}
-      - name: Setup dotnet 2.2.402, 3.1.404 and 3.0.x
+      - name: Setup dotnet 6.0.427, 7.0.410 and 7.0.x
         uses: ./
         with:
           dotnet-version: |
-            2.2.402
-            3.1.404
-            3.0.x
+            6.0.427
+            7.0.410
+            7.0.x
       - name: Verify dotnet
         shell: pwsh
-        run: __tests__/verify-dotnet.ps1 -Patterns "^2.2.402$", "^3.1.404$", "^3.0"
-
+        run: __tests__/verify-dotnet.ps1 -Patterns "^6.0.427$", "^7.0.410$", "^7.0"
   test-setup-multiple-versions-extended:
     runs-on: ${{ matrix.operating-system }}
     strategy:
@@ -47,17 +46,16 @@ jobs:
       - name: Clear toolcache
         shell: pwsh
         run: __tests__/clear-toolcache.ps1 ${{ runner.os }}
-      - name: Setup dotnet 6.0.427, 8.0.403 and 8.0.x
+      - name: Setup dotnet 8.0.403, 9.0.301 and 8.0.x
         uses: ./
         with:
           dotnet-version: |
-            6.0.427
             8.0.403
+            9.0.301
             8.0.x
       - name: Verify dotnet
         shell: pwsh
-        run: __tests__/verify-dotnet.ps1 -Patterns "^6.0.427$", "^8.0.403$", "^8.0"
-
+        run: __tests__/verify-dotnet.ps1 -Patterns "^8.0.403$", "^9.0.301$", "^8.0"
   test-setup-full-version:
     runs-on: ${{ matrix.operating-system }}
     strategy:
@@ -70,23 +68,22 @@ jobs:
       - name: Clear toolcache
         shell: pwsh
         run: __tests__/clear-toolcache.ps1 ${{ runner.os }}
-      # Side-by-side install of 2.2 and 3.1 used for the test project
-      - name: Setup dotnet 2.2.402
+      # Side-by-side install of 6.0 and 7.0 used for the test project
+      - name: Setup dotnet 6.0.427
         uses: ./
         with:
-          dotnet-version: 2.2.402
-      - name: Setup dotnet 3.1.201
+          dotnet-version: 6.0.427
+      - name: Setup dotnet 7.0.410
         uses: ./
         with:
-          dotnet-version: 3.1.201
+          dotnet-version: 7.0.410
           # We are including this variable to force the generation of the nuget config file to verify that it is created in the correct place
           source-url: https://api.nuget.org/v3/index.json
         env:
           NUGET_AUTH_TOKEN: NOTATOKEN
       - name: Verify dotnet
         shell: pwsh
-        run: __tests__/verify-dotnet.ps1 -Patterns "^3.1.201$", "^2.2.402$" -CheckNugetConfig
-
+        run: __tests__/verify-dotnet.ps1 -Patterns "^7.0.410$", "^6.0.427$" -CheckNugetConfig
   test-setup-full-version-extended:
     runs-on: ${{ matrix.operating-system }}
     strategy:
@@ -99,23 +96,22 @@ jobs:
       - name: Clear toolcache
         shell: pwsh
         run: __tests__/clear-toolcache.ps1 ${{ runner.os }}
-      # Side-by-side install of 6.0 and 8.0 used for the test project
-      - name: Setup dotnet 6.0.427
-        uses: ./
-        with:
-          dotnet-version: 6.0.427
+      # Side-by-side install of 8.0 and 9.0 used for the test project
       - name: Setup dotnet 8.0.402
         uses: ./
         with:
           dotnet-version: 8.0.402
+      - name: Setup dotnet 9.0.301
+        uses: ./
+        with:
+          dotnet-version: 9.0.301
           # We are including this variable to force the generation of the nuget config file to verify that it is created in the correct place
           source-url: https://api.nuget.org/v3/index.json
         env:
           NUGET_AUTH_TOKEN: NOTATOKEN
       - name: Verify dotnet
         shell: pwsh
-        run: __tests__/verify-dotnet.ps1 -Patterns "^8.0.402$", "^6.0.427$" -CheckNugetConfig
-
+        run: __tests__/verify-dotnet.ps1 -Patterns "^9.0.301$", "^8.0.402$" -CheckNugetConfig
   test-setup-without-patch-version:
     runs-on: ${{ matrix.operating-system }}
     strategy:
@@ -128,19 +124,18 @@ jobs:
       - name: Clear toolcache
         shell: pwsh
         run: __tests__/clear-toolcache.ps1 ${{ runner.os }}
-      # 2.0, 3.0, 5.0 needs to be in single quotes to interpret as a string instead of as an integer
-      - name: Setup dotnet '3.1'
+      # 6.0, 7.0 needs to be in single quotes to interpret as a string instead of as an integer
+      - name: Setup dotnet '6.0'
         uses: ./
         with:
-          dotnet-version: '3.1'
-      - name: Setup dotnet '2.2'
+          dotnet-version: '6.0'
+      - name: Setup dotnet '7.0'
         uses: ./
         with:
-          dotnet-version: '2.2'
+          dotnet-version: '7.0'
       - name: Verify dotnet
         shell: pwsh
-        run: __tests__/verify-dotnet.ps1 -Patterns "^3.1", "^2.2"
-
+        run: __tests__/verify-dotnet.ps1 -Patterns "^6.0", "^7.0"
   test-setup-without-patch-version-extended:
     runs-on: ${{ matrix.operating-system }}
     strategy:
@@ -153,19 +148,18 @@ jobs:
       - name: Clear toolcache
         shell: pwsh
         run: __tests__/clear-toolcache.ps1 ${{ runner.os }}
-      # 6.0, 7.0, 8.0 needs to be in single quotes to interpret as a string instead of as an integer
+      # 8.0, 9.0 needs to be in single quotes to interpret as a string instead of as an integer
       - name: Setup dotnet '8.0'
         uses: ./
         with:
           dotnet-version: '8.0'
-      - name: Setup dotnet '6.0'
+      - name: Setup dotnet '9.0'
         uses: ./
         with:
-          dotnet-version: '6.0'
+          dotnet-version: '9.0'
       - name: Verify dotnet
         shell: pwsh
-        run: __tests__/verify-dotnet.ps1 -Patterns "^8.0", "^6.0"
-
+        run: __tests__/verify-dotnet.ps1 -Patterns "^8.0", "^9.0"
   test-setup-prerelease-version:
     runs-on: ${{ matrix.operating-system }}
     strategy:
@@ -178,13 +172,13 @@ jobs:
       - name: Clear toolcache
         shell: pwsh
         run: __tests__/clear-toolcache.ps1 ${{ runner.os }}
-      - name: Setup dotnet '3.1.100-preview1-014459'
+      - name: Setup dotnet '6.0.100-preview.7.21379.14'
         uses: ./
         with:
-          dotnet-version: '3.1.100-preview1-014459'
+          dotnet-version: '6.0.100-preview.7.21379.14'
       - name: Verify dotnet
         shell: pwsh
-        run: __tests__/verify-dotnet.ps1 -Patterns "3.1.100-preview1-014459"
+        run: __tests__/verify-dotnet.ps1 -Patterns "6.0.100-preview.7.21379.14"
 
   test-setup-prerelease-version-extended:
     runs-on: ${{ matrix.operating-system }}
@@ -218,18 +212,17 @@ jobs:
       - name: Clear toolcache
         shell: pwsh
         run: __tests__/clear-toolcache.ps1 ${{ runner.os }}
-      - name: Setup dotnet 3.1.x
+      - name: Setup dotnet 6.0.x
         uses: ./
         with:
-          dotnet-version: 3.1.x
-      - name: Setup dotnet 2.2.X
+          dotnet-version: 6.0.x
+      - name: Setup dotnet 7.0.X
         uses: ./
         with:
-          dotnet-version: 2.2.X
+          dotnet-version: 7.0.X
       - name: Verify dotnet
         shell: pwsh
-        run: __tests__/verify-dotnet.ps1 -Patterns "^2.2", "^3.1"
-
+        run: __tests__/verify-dotnet.ps1 -Patterns "^6.0", "^7.0"
   test-setup-latest-patch-version-extended:
     runs-on: ${{ matrix.operating-system }}
     strategy:
@@ -246,13 +239,13 @@ jobs:
         uses: ./
         with:
           dotnet-version: 8.0.x
-      - name: Setup dotnet 6.0.X
+      - name: Setup dotnet 9.0.X
         uses: ./
         with:
-          dotnet-version: 6.0.X
+          dotnet-version: 9.0.X
       - name: Verify dotnet
         shell: pwsh
-        run: __tests__/verify-dotnet.ps1 -Patterns "^6.0", "^8.0"
+        run: __tests__/verify-dotnet.ps1 -Patterns "^8.0", "^9.0"
 
   test-ABCxx-syntax:
     runs-on: ${{ matrix.operating-system }}
@@ -288,18 +281,17 @@ jobs:
       - name: Clear toolcache
         shell: pwsh
         run: __tests__/clear-toolcache.ps1 ${{ runner.os }}
-      - name: Setup dotnet 3.1.*
+      - name: Setup dotnet 6.0.*
         uses: ./
         with:
-          dotnet-version: 3.1.*
-      - name: Setup dotnet 2.2.*
+          dotnet-version: 6.0.*
+      - name: Setup dotnet 7.0.*
         uses: ./
         with:
-          dotnet-version: 2.2.*
+          dotnet-version: 7.0.*
       - name: Verify dotnet
         shell: pwsh
-        run: __tests__/verify-dotnet.ps1 -Patterns "^3.1", "^2.2"
-
+        run: __tests__/verify-dotnet.ps1 -Patterns "^6.0", "^7.0"
   test-setup-with-wildcard-extended:
     runs-on: ${{ matrix.operating-system }}
     strategy:
@@ -316,13 +308,13 @@ jobs:
         uses: ./
         with:
           dotnet-version: 8.0.*
-      - name: Setup dotnet 6.0.*
+      - name: Setup dotnet 9.0.*
         uses: ./
         with:
-          dotnet-version: 6.0.*
+          dotnet-version: 9.0.*
       - name: Verify dotnet
         shell: pwsh
-        run: __tests__/verify-dotnet.ps1 -Patterns "^8.0", "^6.0"
+        run: __tests__/verify-dotnet.ps1 -Patterns "^8.0", "^9.0"
 
   test-setup-global-json-specified-and-version:
     runs-on: ${{ matrix.operating-system }}
@@ -340,16 +332,15 @@ jobs:
         shell: bash
         run: |
           mkdir subdirectory
-          echo '{"sdk":{"version": "2.2.207","rollForward": "latestFeature"}}' > ./subdirectory/global.json
+          echo '{"sdk":{"version": "6.0.424","rollForward": "latestFeature"}}' > ./subdirectory/global.json
       - name: Setup dotnet
         uses: ./
         with:
-          dotnet-version: 3.1
+          dotnet-version: 7.0
           global-json-file: ./subdirectory/global.json
       - name: Verify dotnet
         shell: pwsh
-        run: __tests__/verify-dotnet.ps1 -Patterns "^2.2", "^3.1"
-
+        run: __tests__/verify-dotnet.ps1 -Patterns "^6.0", "^7.0"
   test-setup-global-json-specified-and-version-extended:
     runs-on: ${{ matrix.operating-system }}
     strategy:
@@ -366,15 +357,15 @@ jobs:
         shell: bash
         run: |
           mkdir subdirectory
-          echo '{"sdk":{"version": "6.0.424","rollForward": "latestFeature"}}' > ./subdirectory/global.json
+          echo '{"sdk":{"version": "8.0.402","rollForward": "latestFeature"}}' > ./subdirectory/global.json
       - name: Setup dotnet
         uses: ./
         with:
-          dotnet-version: '8.0'
+          dotnet-version: '9.0'
           global-json-file: ./subdirectory/global.json
       - name: Verify dotnet
         shell: pwsh
-        run: __tests__/verify-dotnet.ps1 -Patterns "^6.0", "^8.0"
+        run: __tests__/verify-dotnet.ps1 -Patterns "^8.0", "^9.0"
 
   test-setup-global-json-only:
     runs-on: ${{ matrix.operating-system }}
@@ -392,14 +383,14 @@ jobs:
         shell: bash
         run: |
           mkdir subdirectory
-          echo '{"sdk":{"version": "2.2.207","rollForward": "latestFeature"}}' > ./subdirectory/global.json
+          echo '{"sdk":{"version": "6.0.424","rollForward": "latestFeature"}}' > ./subdirectory/global.json
       - name: Setup dotnet
         uses: ./
         with:
           global-json-file: ./subdirectory/global.json
       - name: Verify dotnet
         shell: pwsh
-        run: __tests__/verify-dotnet.ps1 -Patterns "^2.2"
+        run: __tests__/verify-dotnet.ps1 -Patterns "^6.0"
 
   test-setup-global-json-only-extended:
     runs-on: ${{ matrix.operating-system }}
@@ -442,14 +433,14 @@ jobs:
         shell: bash
         run: |
           mkdir subdirectory
-          echo '/* should support comments */ {"sdk":{"version": "2.2.207","rollForward": "latestFeature"}} // should support comments' > ./subdirectory/global.json
+          echo '/* should support comments */ {"sdk":{"version": "6.0.424","rollForward": "latestFeature"}} // should support comments' > ./subdirectory/global.json
       - name: Setup dotnet
         uses: ./
         with:
           global-json-file: ./subdirectory/global.json
       - name: Verify dotnet
         shell: pwsh
-        run: __tests__/verify-dotnet.ps1 -Patterns "^2.2"
+        run: __tests__/verify-dotnet.ps1 -Patterns "^6.0"
 
   test-global-json-with-comments-extended:
     runs-on: ${{ matrix.operating-system }}
@@ -467,14 +458,14 @@ jobs:
         shell: bash
         run: |
           mkdir subdirectory
-          echo '/* should support comments */ {"sdk":{"version": "6.0.424","rollForward": "latestFeature"}} // should support comments' > ./subdirectory/global.json
+          echo '/* should support comments */ {"sdk":{"version": "8.0.402","rollForward": "latestFeature"}} // should support comments' > ./subdirectory/global.json
       - name: Setup dotnet
         uses: ./
         with:
           global-json-file: ./subdirectory/global.json
       - name: Verify dotnet
         shell: pwsh
-        run: __tests__/verify-dotnet.ps1 -Patterns "^6.0"
+        run: __tests__/verify-dotnet.ps1 -Patterns "^8.0"
 
   test-setup-with-dotnet-quality:
     runs-on: ${{ matrix.operating-system }}
@@ -516,11 +507,11 @@ jobs:
       - name: Copy NuGet lock file to root
         shell: bash
         run: cp ./__tests__/e2e-test-csproj/packages.lock.json ./packages.lock.json
-      - name: Setup .NET Core 3.1
+      - name: Setup .NET Core 6.0
         id: setup-dotnet
         uses: ./
         with:
-          dotnet-version: 3.1
+          dotnet-version: 6.0
           cache: true
       - name: Verify Cache
         if: steps.setup-dotnet.outputs.cache-hit == 'true'
@@ -528,7 +519,7 @@ jobs:
         run: if [[ -e ${NUGET_PACKAGES} ]]; then exit 0; else exit 1; fi
       - name: Verify dotnet
         shell: pwsh
-        run: __tests__/verify-dotnet.ps1 -Patterns "^3.1"
+        run: __tests__/verify-dotnet.ps1 -Patterns "^6.0"
 
   test-setup-with-cache-extended:
     runs-on: ${{ matrix.operating-system }}
@@ -575,11 +566,11 @@ jobs:
       - name: Clear toolcache
         shell: pwsh
         run: __tests__/clear-toolcache.ps1 ${{ runner.os }}
-      - name: Setup .NET Core 3.1
+      - name: Setup .NET Core 6.0
         id: setup-dotnet
         uses: ./
         with:
-          dotnet-version: 3.1
+          dotnet-version: 6.0
           cache: true
           cache-dependency-path: './__tests__/e2e-test-csproj/packages.lock.json'
       - name: Verify Cache
@@ -588,7 +579,7 @@ jobs:
         run: if [[ -e ${NUGET_PACKAGES} ]]; then exit 0; else exit 1; fi
       - name: Verify dotnet
         shell: pwsh
-        run: __tests__/verify-dotnet.ps1 -Patterns "^3.1"
+        run: __tests__/verify-dotnet.ps1 -Patterns "^6.0"
 
   test-setup-with-cache-dependency-path-extended:
     runs-on: ${{ matrix.operating-system }}
@@ -633,11 +624,11 @@ jobs:
         shell: pwsh
         run: __tests__/clear-toolcache.ps1 ${{ runner.os }}
 
-      - name: Setup dotnet 6.0.401
+      - name: Setup dotnet 8.0.402
         uses: ./
         id: step1
         with:
-          dotnet-version: '6.0.401'
+          dotnet-version: '8.0.402'
 
       - name: Verify value of the dotnet-version output
         shell: pwsh
@@ -660,19 +651,19 @@ jobs:
         shell: pwsh
         run: __tests__/clear-toolcache.ps1 ${{ runner.os }}
 
-      - name: Setup dotnet 6.0.401, 5.0.408, 7.0.100-rc.1.22431.12
+      - name: Setup dotnet 8.0.402, 6.0.401, 7.0.100-rc.1.22431.12
         uses: ./
         id: step2
         with:
           dotnet-version: |
-            7.0.100-rc.1.22431.12
+            8.0.402
             6.0.401
-            5.0.408
+            7.0.100-rc.1.22431.12
 
       - name: Verify value of the dotnet-version output
         shell: pwsh
         run: |
-          $version = "7.0.100-rc.1.22431.12"
+          $version = "8.0.402"
           if (-not ($version -eq '${{steps.step2.outputs.dotnet-version}}')) { throw "Unexpected output value" }
 
   test-proxy:
@@ -703,17 +694,17 @@ jobs:
       - name: Clear toolcache
         shell: pwsh
         run: __tests__/clear-toolcache.ps1 ${{ runner.os }}
-      - name: Setup dotnet 6.0
+      - name: Setup dotnet 8.0
         uses: ./
         with:
-          dotnet-version: 6.0
+          dotnet-version: 8.0
           source-url: https://api.nuget.org/v3/index.json
         env:
           NUGET_AUTH_TOKEN: NOTATOKEN
       - name: Verify dotnet
         shell: pwsh
         run: |
-          __tests__/verify-dotnet.ps1 -Patterns "^6.0" -CheckNugetConfig
+          __tests__/verify-dotnet.ps1 -Patterns "^8.0" -CheckNugetConfig
 
   test-bypass-proxy:
     runs-on: ubuntu-22.04
@@ -726,16 +717,16 @@ jobs:
       - name: Clear toolcache
         shell: pwsh
         run: __tests__/clear-toolcache.ps1 ${{ runner.os }}
-      - name: Setup dotnet 3.1.201
+      - name: Setup dotnet 7.0.410
         uses: ./
         with:
-          dotnet-version: 3.1.201
+          dotnet-version: 7.0.410
           source-url: https://api.nuget.org/v3/index.json
         env:
           NUGET_AUTH_TOKEN: NOTATOKEN
       - name: Verify dotnet
         shell: pwsh
-        run: __tests__/verify-dotnet.ps1 -Patterns "^3.1.201$" -CheckNugetConfig
+        run: __tests__/verify-dotnet.ps1 -Patterns "^7.0.410$" -CheckNugetConfig
 
   test-bypass-proxy-extended:
     runs-on: ubuntu-latest
@@ -765,7 +756,7 @@ jobs:
       fail-fast: false
       matrix:
         operating-system: [ubuntu-22.04, windows-latest, macos-13]
-        lower-version: ['3.1.426']
+        lower-version: ['6.0.427']
         higher-version: ['7.0.203']
     steps:
       - name: Checkout
@@ -788,15 +779,14 @@ jobs:
       - name: Verify dotnet (higher version)
         shell: pwsh
         run: __tests__/verify-dotnet.ps1 -Patterns "^${{ matrix.lower-version }}$", "^${{ matrix.higher-version }}$"
-
   test-sequential-version-installation-extended:
     runs-on: ${{ matrix.operating-system }}
     strategy:
       fail-fast: false
       matrix:
         operating-system: [ubuntu-latest, macos-latest]
-        lower-version: ['6.0.425']
-        higher-version: ['8.0.403']
+        lower-version: ['8.0.403']
+        higher-version: ['9.0.301']
     steps:
       - name: Checkout
         uses: actions/checkout@v4
diff --git a/.github/workflows/test-dotnet.yml b/.github/workflows/test-dotnet.yml
index 51e6d64..a099bb8 100644
--- a/.github/workflows/test-dotnet.yml
+++ b/.github/workflows/test-dotnet.yml
@@ -19,28 +19,7 @@ jobs:
       matrix:
         operating-system:
           [ubuntu-latest, ubuntu-22.04, windows-latest, macos-13, macos-latest]
-        dotnet-version: ['2.1', '2.2', '3.0', '3.1', '5.0', '6.0', '7.0', '8.0']
-        exclude:
-          - dotnet-version: '2.1'
-            operating-system: ubuntu-latest
-          - dotnet-version: '2.2'
-            operating-system: ubuntu-latest
-          - dotnet-version: '3.0'
-            operating-system: ubuntu-latest
-          - dotnet-version: '3.1'
-            operating-system: ubuntu-latest
-          - dotnet-version: '5.0'
-            operating-system: ubuntu-latest
-          - dotnet-version: '2.1'
-            operating-system: macos-latest
-          - dotnet-version: '2.2'
-            operating-system: macos-latest
-          - dotnet-version: '3.0'
-            operating-system: macos-latest
-          - dotnet-version: '3.1'
-            operating-system: macos-latest
-          - dotnet-version: '5.0'
-            operating-system: macos-latest
+        dotnet-version: ['6.0', '7.0', '8.0', '9.0']
     steps:
       - name: Checkout
         uses: actions/checkout@v4
diff --git a/README.md b/README.md
index 2db0d07..36d257e 100644
--- a/README.md
+++ b/README.md
@@ -25,7 +25,7 @@ steps:
 - uses: actions/checkout@v4
 - uses: actions/setup-dotnet@v4
   with:
-    dotnet-version: '3.1.x'
+    dotnet-version: '8.0.x'
 - run: dotnet build <my project>
 ```
 > **Warning**: Unless a concrete version is specified in the [`global.json`](https://learn.microsoft.com/en-us/dotnet/core/tools/global-json) file, **_the latest .NET version installed on the runner (including preinstalled versions) will be used [by default](https://learn.microsoft.com/en-us/dotnet/core/versions/selection#the-sdk-uses-the-latest-installed-version)_**. Please refer to the [documentation](https://docs.github.com/en/actions/using-github-hosted-runners/about-github-hosted-runners/about-github-hosted-runners#supported-software) for the currently preinstalled .NET SDK versions.
@@ -38,8 +38,8 @@ steps:
   uses: actions/setup-dotnet@v4
   with:
     dotnet-version: | 
-      3.1.x
-      5.0.x
+      8.0.x
+      9.0.x
 - run: dotnet build <my project>
 ```
 ## Supported version syntax
@@ -47,9 +47,9 @@ steps:
 The `dotnet-version` input supports following syntax:
 
 - **A.B.C** (e.g 6.0.400, 7.0.100-preview.7.22377.5) - installs exact version of .NET SDK
-- **A.B** or **A.B.x** (e.g. 3.1, 3.1.x) - installs the latest patch version of .NET SDK on the channel `3.1`, including prerelease versions (preview, rc)
-- **A** or **A.x** (e.g. 3, 3.x) - installs the latest minor version of the specified major tag, including prerelease versions (preview, rc)
-- **A.B.Cxx** (e.g. 6.0.4xx) - available since `.NET 5.0` release. Installs the latest version of the specific SDK release, including prerelease versions (preview, rc). 
+- **A.B** or **A.B.x** (e.g. 8.0, 8.0.x) - installs the latest patch version of .NET SDK on the channel `8.0`, including prerelease versions (preview, rc)
+- **A** or **A.x** (e.g. 8, 8.x) - installs the latest minor version of the specified major tag, including prerelease versions (preview, rc)
+- **A.B.Cxx** (e.g. 8.0.4xx) - available since `.NET 5.0` release. Installs the latest version of the specific SDK release, including prerelease versions (preview, rc). 
 
 
 ## Using the `dotnet-quality` input
@@ -62,7 +62,7 @@ steps:
 - uses: actions/checkout@v4
 - uses: actions/setup-dotnet@v4
   with:
-    dotnet-version: '6.0.x'
+    dotnet-version: '8.0.x'
     dotnet-quality: 'preview'
 - run: dotnet build <my project>
 ```
@@ -94,7 +94,7 @@ steps:
 - uses: actions/checkout@v4
 - uses: actions/setup-dotnet@v4
   with:
-    dotnet-version: 6.x
+    dotnet-version: 8.x
     cache: true
 - run: dotnet restore --locked-mode
 ```
@@ -119,7 +119,7 @@ steps:
 - uses: actions/checkout@v4
 - uses: actions/setup-dotnet@v4
   with:
-    dotnet-version: 6.x
+    dotnet-version: 8.x
     cache: true
 - run: dotnet restore --locked-mode
 ```
@@ -133,7 +133,7 @@ steps:
 - uses: actions/checkout@v4
 - uses: actions/setup-dotnet@v4
   with:
-    dotnet-version: 6.x
+    dotnet-version: 8.x
     cache: true
     cache-dependency-path: subdir/packages.lock.json
 - run: dotnet restore --locked-mode
@@ -147,7 +147,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        dotnet: [ '2.1.x', '3.1.x', '5.0.x' ]
+        dotnet: [ '7.0.x', '8.0.x', '9.0.x' ]
     name: Dotnet ${{ matrix.dotnet }} sample
     steps:
       - uses: actions/checkout@v4
@@ -167,7 +167,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        dotnet: [ '2.1.x', '3.1.x', '5.0.x' ]
+        dotnet: [ '7.0.x', '8.0.x', '9.0.x' ]
     name: Dotnet ${{ matrix.dotnet }} sample
     steps:
       - uses: actions/checkout@v4
@@ -189,7 +189,7 @@ steps:
 - uses: actions/checkout@v4
 - uses: actions/setup-dotnet@v4
   with:
-    dotnet-version: '3.1.x'
+    dotnet-version: '8.0.x'
     source-url: https://nuget.pkg.github.com/<owner>/index.json
   env:
     NUGET_AUTH_TOKEN: ${{secrets.GITHUB_TOKEN}}
@@ -215,7 +215,7 @@ steps:
 ```yml
 - uses: actions/setup-dotnet@v4
   with:
-    dotnet-version: 3.1.x
+    dotnet-version: 8.0.x
 - name: Publish the package to nuget.org
   run: dotnet nuget push */bin/Release/*.nupkg -k $NUGET_AUTH_TOKEN -s https://api.nuget.org/v3/index.json
   env:
@@ -239,8 +239,8 @@ In case of a single version installation, the `dotnet-version` output contains t
     - uses: actions/setup-dotnet@v4
       id: stepid
       with:
-        dotnet-version: 3.1.422
-    - run: echo '${{ steps.stepid.outputs.dotnet-version }}' # outputs 3.1.422
+        dotnet-version: 8.0.402
+    - run: echo '${{ steps.stepid.outputs.dotnet-version }}' # outputs 8.0.402
 ```
 
 **Multiple version installation**
@@ -252,9 +252,9 @@ In case of a multiple version installation, the `dotnet-version` output contains
       id: stepid
       with:
         dotnet-version: | 
-          3.1.422
-          5.0.408
-    - run: echo '${{ steps.stepid.outputs.dotnet-version }}' # outputs 5.0.408
+          8.0.402
+          9.0.301
+    - run: echo '${{ steps.stepid.outputs.dotnet-version }}' # outputs 9.0.301
 ```
 **Installation from global.json**
 
@@ -265,10 +265,10 @@ When the `dotnet-version` input is used along with the `global-json-file` input,
       id: stepid
       with:
         dotnet-version: | 
-          3.1.422
-          5.0.408
-        global-json-file: "./global.json" # contains version 2.2.207
-    - run: echo '${{ steps.stepid.outputs.dotnet-version }}' # outputs 2.2.207
+          8.0.402
+          9.0.301
+        global-json-file: "./global.json" # contains version 7.0.410
+    - run: echo '${{ steps.stepid.outputs.dotnet-version }}' # outputs 7.0.410
 ```
 
 ### `cache-hit`
@@ -304,7 +304,7 @@ build:
     - uses: actions/checkout@main
     - uses: actions/setup-dotnet@v4
       with:
-        dotnet-version: '3.1.x'
+        dotnet-version: '8.0.x'
         cache: true
 ```
 
diff --git a/__tests__/verify-dotnet.ps1 b/__tests__/verify-dotnet.ps1
index d4e2c4d..50d3c2c 100755
--- a/__tests__/verify-dotnet.ps1
+++ b/__tests__/verify-dotnet.ps1
@@ -72,6 +72,7 @@ $targetFrameworkVersionMap = @{
   "6.0" = "net6.0";
   "7.0" = "net7.0";
   "8.0" = "net8.0";
+  "9.0" = "net9.0";
  }
 
 foreach ($version in $Versions)
diff --git a/externals/install-dotnet.ps1 b/externals/install-dotnet.ps1
index b5169e5..9c434b8 100644
--- a/externals/install-dotnet.ps1
+++ b/externals/install-dotnet.ps1
@@ -28,7 +28,7 @@
     Warning: Value "Current" is deprecated for the Channel parameter. Use "STS" instead.
     Note: The version parameter overrides the channel parameter when any version other than 'latest' is used.
 .PARAMETER Quality
-    Download the latest build of specified quality in the channel. The possible values are: daily, signed, validated, preview, GA.
+    Download the latest build of specified quality in the channel. The possible values are: daily, preview, GA.
     Works only in combination with channel. Not applicable for STS and LTS channels and will be ignored if those channels are used. 
     For SDK use channel in A.B.Cxx format: using quality together with channel in A.B format is not supported.
     Supported since 5.0 release.
@@ -300,10 +300,10 @@ function Get-NormalizedQuality([string]$Quality) {
     }
 
     switch ($Quality) {
-        { @("daily", "signed", "validated", "preview") -contains $_ } { return $Quality.ToLowerInvariant() }
+        { @("daily", "preview") -contains $_ } { return $Quality.ToLowerInvariant() }
         #ga quality is available without specifying quality, so normalizing it to empty
         { $_ -eq "ga" } { return "" }
-        default { throw "'$Quality' is not a supported value for -Quality option. Supported values are: daily, signed, validated, preview, ga. If you think this is a bug, report it at https://github.com/dotnet/install-scripts/issues." }
+        default { throw "'$Quality' is not a supported value for -Quality option. Supported values are: daily, preview, ga. If you think this is a bug, report it at https://github.com/dotnet/install-scripts/issues." }
     }
 }
 
@@ -992,32 +992,6 @@ function PrintDryRunOutput($Invocation, $DownloadLinks) {
     }
 }
 
-# grab the 'stem' of the redirect and check it against all of our configured feeds, 
-# if it matches, we can be sure that the redirect is valid and we should use it for
-# subsequent processing
-function Sanitize-RedirectUrl([string]$url) {
-    $urlSegments = ([System.Uri]$url).Segments;
-    $urlStem = $urlSegments[2..($urlSegments.Length - 1)] -join "";
-    Write-Verbose "Checking configured feeds for the asset at $urlStem"
-    foreach ($prospectiveFeed in $feeds) {
-        $trialUrl = "$prospectiveFeed/$urlStem";
-        Write-Verbose "Checking $trialUrl"
-        try {
-            $trialResponse = Invoke-WebRequest -Uri $trialUrl -Method HEAD
-            if ($trialResponse.StatusCode -eq 200) {
-                Write-Verbose "Found a match at $trialUrl"
-                return $trialUrl;
-            }
-            else {
-                Write-Verbose "No match at $trialUrl"
-            }
-        }
-        catch {
-            Write-Verbose "Failed to check $trialUrl"
-        }
-    }
-}
-
 function Get-AkaMSDownloadLink([string]$Channel, [string]$Quality, [bool]$Internal, [string]$Product, [string]$Architecture) {
     Say-Invocation $MyInvocation 
 
@@ -1076,11 +1050,6 @@ function Get-AkaMSDownloadLink([string]$Channel, [string]$Quality, [bool]$Intern
         }
         elseif ((($Response.StatusCode -lt 300) -or ($Response.StatusCode -ge 400)) -and (-not [string]::IsNullOrEmpty($akaMsDownloadLink))) {
             # Redirections have ended.
-            $actualRedirectUrl = Sanitize-RedirectUrl $akaMsDownloadLink
-            if ($null -ne $actualRedirectUrl) {
-                $akaMsDownloadLink = $actualRedirectUrl
-            }
-
             return $akaMsDownloadLink
         }
 
@@ -1387,10 +1356,10 @@ Say "Installed version is $($DownloadedLink.effectiveVersion)"
 Say "Installation finished"
 
 # SIG # Begin signature block
-# MIIoRgYJKoZIhvcNAQcCoIIoNzCCKDMCAQExDzANBglghkgBZQMEAgEFADB5Bgor
+# MIIoQwYJKoZIhvcNAQcCoIIoNDCCKDACAQExDzANBglghkgBZQMEAgEFADB5Bgor
 # BgEEAYI3AgEEoGswaTA0BgorBgEEAYI3AgEeMCYCAwEAAAQQH8w7YFlLCE63JNLG
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 # b3NvZnQgQ29ycG9yYXRpb24xKDAmBgNVBAMTH01pY3Jvc29mdCBDb2RlIFNpZ25p
@@ -1462,67 +1431,67 @@ Say "Installation finished"
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+# 8ThYl12Yg1rwSKpWLolA/B1eqBw4TRcvVY0IvNNi5sm+//HJ9Aw6NJuR/uDR7X7v
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+# BfyeLyCEo6AuwEHn511PKE8dK4JvlmLSoHj7VFR3NHDk3zRkx0ExkmF8aOdpvoKh
+# uwBCxoZ/JhbzSzrvZ74GVjKKIyt5FA0wggdxMIIFWaADAgECAhMzAAAAFcXna54C
 # m0mZAAAAAAAVMA0GCSqGSIb3DQEBCwUAMIGIMQswCQYDVQQGEwJVUzETMBEGA1UE
 # CBMKV2FzaGluZ3RvbjEQMA4GA1UEBxMHUmVkbW9uZDEeMBwGA1UEChMVTWljcm9z
 # b2Z0IENvcnBvcmF0aW9uMTIwMAYDVQQDEylNaWNyb3NvZnQgUm9vdCBDZXJ0aWZp
@@ -1562,44 +1531,44 @@ Say "Installation finished"
 # VAmxaQFEfnyhYWxz/gq77EFmPWn9y8FBSX5+k77L+DvktxW/tM4+pTFRhLy/AsGC
 # onsXHRWJjXD+57XQKBqJC4822rpM+Zv/Cuk0+CQ1ZyvgDbjmjJnW4SLq8CdCPSWU
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 # SIG # End signature block
diff --git a/externals/install-dotnet.sh b/externals/install-dotnet.sh
index 8330fa9..034d2df 100755
--- a/externals/install-dotnet.sh
+++ b/externals/install-dotnet.sh
@@ -477,7 +477,7 @@ get_normalized_quality() {
     local quality="$(to_lowercase "$1")"
     if [ ! -z "$quality" ]; then
         case "$quality" in
-            daily | signed | validated | preview)
+            daily | preview)
                 echo "$quality"
                 return 0
                 ;;
@@ -486,7 +486,7 @@ get_normalized_quality() {
                 return 0
                 ;;
             *)
-                say_err "'$quality' is not a supported value for --quality option. Supported values are: daily, signed, validated, preview, ga. If you think this is a bug, report it at https://github.com/dotnet/install-scripts/issues."
+                say_err "'$quality' is not a supported value for --quality option. Supported values are: daily, preview, ga. If you think this is a bug, report it at https://github.com/dotnet/install-scripts/issues."
                 return 1
                 ;;
         esac
@@ -1198,13 +1198,19 @@ downloadcurl() {
     local curl_options="--retry 20 --retry-delay 2 --connect-timeout 15 -sSL -f --create-dirs "
     local curl_exit_code=0;
     if [ -z "$out_path" ]; then
-        curl $curl_options "$remote_path_with_credential" 2>&1
+        curl_output=$(curl $curl_options "$remote_path_with_credential" 2>&1)
         curl_exit_code=$?
+        echo "$curl_output"
     else
-        curl $curl_options -o "$out_path" "$remote_path_with_credential" 2>&1
+        curl_output=$(curl $curl_options -o "$out_path" "$remote_path_with_credential" 2>&1)
         curl_exit_code=$?
     fi
-    
+
+    # Regression in curl causes curl with --retry to return a 0 exit code even when it fails to download a file - https://github.com/curl/curl/issues/17554
+    if [ $curl_exit_code -eq 0 ] && echo "$curl_output" | grep -q "^curl: ([0-9]*) "; then
+        curl_exit_code=$(echo "$curl_output" | sed 's/curl: (\([0-9]*\)).*/\1/')
+    fi
+
     if [ $curl_exit_code -gt 0 ]; then
         download_error_msg="Unable to download $remote_path."
         # Check for curl timeout codes
@@ -1272,61 +1278,6 @@ downloadwget() {
     return 0
 }
 
-extract_stem() {
-    local url="$1"
-    # extract the protocol
-    proto="$(echo $1 | grep :// | sed -e's,^\(.*://\).*,\1,g')"
-    # remove the protocol
-    url="${1/$proto/}"
-    # extract the path (if any) - since we know all of our feeds have a first path segment, we can skip the first one. otherwise we'd use -f2- to get the full path
-    full_path="$(echo $url | grep / | cut -d/ -f2-)"
-    path="$(echo $full_path | cut -d/ -f2-)"
-    echo $path
-}
-
-check_url_exists() {
-    eval $invocation
-    local url="$1"
-
-    local code=""
-    if machine_has "curl"
-    then
-        code=$(curl --head -o /dev/null -w "%{http_code}" -s --fail "$url");
-    elif machine_has "wget"
-    then
-        # get the http response, grab the status code
-        server_response=$(wget -qO- --method=HEAD --server-response "$url" 2>&1)
-        code=$(echo "$server_response" | grep "HTTP/" | awk '{print $2}')
-    fi
-    if [ $code = "200" ]; then
-        return 0
-    else
-        return 1
-    fi
-}
-
-sanitize_redirect_url() {
-    eval $invocation
-
-    local url_stem
-    url_stem=$(extract_stem "$1")
-    say_verbose "Checking configured feeds for the asset at ${yellow:-}$url_stem${normal:-}"
-
-    for feed in "${feeds[@]}"
-    do
-        local trial_url="$feed/$url_stem"
-        say_verbose "Checking ${yellow:-}$trial_url${normal:-}"
-        if check_url_exists "$trial_url"; then
-            say_verbose "Found a match at ${yellow:-}$trial_url${normal:-}"
-            echo "$trial_url"
-            return 0
-        else
-            say_verbose "No match at ${yellow:-}$trial_url${normal:-}"
-        fi
-    done
-    return 1
-}
-
 get_download_link_from_aka_ms() {
     eval $invocation
 
@@ -1379,11 +1330,6 @@ get_download_link_from_aka_ms() {
             return 1
         fi
 
-        sanitized_redirect_url=$(sanitize_redirect_url "$aka_ms_download_link")
-        if [[ -n "$sanitized_redirect_url" ]]; then
-            aka_ms_download_link="$sanitized_redirect_url"
-        fi
-
         say_verbose "The redirect location retrieved: '$aka_ms_download_link'."
         return 0
     else
@@ -1848,7 +1794,7 @@ do
             echo "              examples: 2.0.0-preview2-006120; 1.1.0"
             echo "  -q,--quality <quality>         Download the latest build of specified quality in the channel."
             echo "      -Quality"
-            echo "          The possible values are: daily, signed, validated, preview, GA."
+            echo "          The possible values are: daily, preview, GA."
             echo "          Works only in combination with channel. Not applicable for STS and LTS channels and will be ignored if those channels are used." 
             echo "          For SDK use channel in A.B.Cxx format. Using quality for SDK together with channel in A.B format is not supported." 
             echo "          Supported since 5.0 release."