diff --git a/.github/workflows/test-integration.yml b/.github/workflows/test-integration.yml
new file mode 100644
index 0000000..e9a6c66
--- /dev/null
+++ b/.github/workflows/test-integration.yml
@@ -0,0 +1,36 @@
+name: 'Test Phase 2: Published Package'
+
+on:
+  workflow_dispatch:
+  workflow_call:
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+
+  test-integration:
+    strategy:
+      matrix:
+        configuration: [Release, Debug]
+
+    # FIX: cannot use ubuntu-latest
+    runs-on: ubuntu-22.04   # tip: runs-on can use ${{ matrix.<name> }}
+    steps:
+      - uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5      # v4.3.1
+      - uses: actions/setup-dotnet@67a3573c9a986a3f9c594539f4ab511d57bb3ce9  # v4.3.1
+        with:
+          dotnet-version: |
+            10.x.x
+            9.x.x
+            8.x.x
+            7.x.x
+            6.x.x
+            5.x.x
+
+      - run: |
+          dotnet test ./tests-integration -c ${{ matrix.configuration }} \
+            > test-output.txt
+
+          grep -E " - .*\.dll" test-output.txt >> $GITHUB_STEP_SUMMARY
diff --git a/.gitignore b/.gitignore
index eba8475..757dac0 100644
--- a/.gitignore
+++ b/.gitignore
@@ -8,7 +8,7 @@ obj
 !sandbox
 !src
 !tests
-!integration
+!tests-integration
 
 !.gitignore
 !Directory.Build.props
diff --git a/integration/ZeroSerializer.IntegrationTests.csproj b/tests-integration/ZeroSerializer.IntegrationTests.csproj
similarity index 73%
rename from integration/ZeroSerializer.IntegrationTests.csproj
rename to tests-integration/ZeroSerializer.IntegrationTests.csproj
index b55f9df..ed2e1ac 100644
--- a/integration/ZeroSerializer.IntegrationTests.csproj
+++ b/tests-integration/ZeroSerializer.IntegrationTests.csproj
@@ -1,6 +1,6 @@
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
-    <TargetFrameworks>net10.0;net8.0;net6.0;net5.0</TargetFrameworks>
+    <TargetFrameworks>net10.0;net9.0;net8.0;net7.0;net6.0;net5.0</TargetFrameworks>
     <ImplicitUsings>disable</ImplicitUsings>
     <Nullable>enable</Nullable>
     <LangVersion>latest</LangVersion>
@@ -18,13 +18,15 @@
   </ItemGroup>
 
   <!--
-    - Reference the NuGet package instead of the local src project reference.
-    - Mirror the full test suite from the tests directory by including all test sources, excluding Unity compatibility tests.
+    Reference the NuGet package instead of the local src project reference.
   -->
   <ItemGroup>
     <PackageReference Include="$(NuGetPublishID)" Version="*-*" />
   </ItemGroup>
 
+  <!--
+    Mirror the full test suite from the tests directory by including all test sources, excluding Unity compatibility tests.
+  -->
   <ItemGroup>
     <Compile Include="../tests/**/*.cs" Exclude="../tests/obj/**/*.cs;../tests/bin/**/*.cs;../tests/UnityCompatibilityTests.cs" />
   </ItemGroup>