diff --git a/.azure/pipelines/ci-outer-loop.yml b/.azure/pipelines/ci-outer-loop.yml
new file mode 100644
index 0000000..58f1a5c
--- /dev/null
+++ b/.azure/pipelines/ci-outer-loop.yml
@@ -0,0 +1,29 @@
+variables:
+  DOTNET_NOLOGO: 1
+  DOTNET_CLI_TELEMETRY_OPTOUT: 1
+  CI_BUILD_NUMBER: $(Build.BuildId)
+  BRANCH_NAME: $(Build.SourceBranchName)
+  TAG_NAME: $(Build.SourceBranchName)
+
+trigger: none
+# pr trigger must not be excluded, but in the UI for the pipeline definition a setting has to be made.
+# See https://docs.microsoft.com/en-us/azure/devops/pipelines/repos/github?view=azure-devops&tabs=yaml#comment-triggers
+# for further info.
+
+schedules:
+  - cron: "0 0 * * *"
+    displayName: "Daily midnight build"
+    branches:
+      include:
+        - master
+
+stages:
+  - stage: Build_Test
+    jobs:
+      - template: jobs/build_and_test.yml
+
+  - stage: E2E_Tests
+    dependsOn:
+      - Build_Test
+    jobs:
+      - template: jobs/e2e_tests_all.yml
diff --git a/.azure/pipelines/jobs/e2e_tests_all.yml b/.azure/pipelines/jobs/e2e_tests_all.yml
new file mode 100644
index 0000000..6e7a212
--- /dev/null
+++ b/.azure/pipelines/jobs/e2e_tests_all.yml
@@ -0,0 +1,95 @@
+jobs:
+  - job: e2e_tests
+    displayName: e2e tests
+    pool:
+      vmImage: 'ubuntu-20.04'
+    strategy:
+      matrix:
+        net60:
+          dotnetVersion: '6.x'
+          TRX2JUNIT_VECTORS_ENABLED: true
+        net31:
+          dotnetVersion: '3.1.x'
+    steps:
+      - task: UseDotNet@2
+        inputs:
+          version: $(dotnetVersion)
+          installationPath: $(Agent.ToolsDirectory)/dotnet
+          includePreviewVersions: false
+
+      - bash: |
+          sudo apt update
+          sudo apt install -y libxml2-utils
+        displayName: install xml-lint
+
+      - task: DownloadPipelineArtifact@2
+        inputs:
+          artifactName: 'NuGet-Packed'
+          targetPath: './NuGet-Packed'
+
+      - bash: |
+          chmod ugo+x -R *.sh
+          chmod ugo+x ./tests/scripts/*.sh
+
+          dotnet --info
+        displayName: init
+
+      - bash: |
+            # copied from build.sh (but modified)
+            if [[ -n "$TAG_NAME" ]]; then
+                if [[ "$TAG_NAME" =~ ^v([0-9]+)\.([0-9]+)\.([0-9]+)(-(preview-[0-9]+))?$ ]]; then
+                    export VersionMajor="${BASH_REMATCH[1]}"
+                    export VersionMinor="${BASH_REMATCH[2]}"
+                    export VersionPatch="${BASH_REMATCH[3]}"
+                    export VersionSuffix="${BASH_REMATCH[5]}"
+
+                    ToolVersion="$VersionMajor.$VersionMinor.$VersionPatch"
+
+                    if [[ -n $VersionSuffix ]]; then
+                        ToolVersion="$ToolVersion-$VersionSuffix"
+                    fi
+                fi
+            fi
+
+            # special handling for pre-releases (is a constraint by .NET Core global tools)
+            # and also to prevent installation from NuGet-feed (which may have higher version than the
+            # built tool)
+            if [[ -z "$ToolVersion" ]]; then
+                dotnet tool install --tool-path $(pwd)/tool --configfile=ci-nuget.config trx2junit
+            else
+                dotnet tool install --tool-path $(pwd)/tool --version="$ToolVersion" --configfile=ci-nuget.config trx2junit
+            fi
+
+            echo "##vso[task.prependpath]$(pwd)/tool"
+        displayName: install built trx2junit-tool
+
+      - bash: |
+          echo $PATH
+          echo "-------------------------------------------------"
+          dotnet tool list --tool-path $(pwd)/tool
+          echo "-------------------------------------------------"
+          trx2junit
+
+          if [[ $? != 1 ]]; then
+            echo "hm, something strange"
+            exit 1
+          fi
+        displayName: check tool installation
+
+      - bash: ./tests/scripts/run-single-arg.sh
+        displayName: single-arg
+
+      - bash: ./tests/scripts/run-multiple-args.sh
+        displayName: multiple-args
+
+      - bash: ./tests/scripts/run-globbing.sh
+        displayName: globbing
+
+      - bash: ./tests/scripts/run-no-globbing.sh
+        displayName: no-globbing
+
+      - bash: ./tests/scripts/run-different-output-location.sh
+        displayName: different-output-location
+
+      - bash: ./tests/scripts/run-junit2trx.sh
+        displayName: junit2trx
diff --git a/trx2junit.sln b/trx2junit.sln
index 30e8973..33e470e 100644
--- a/trx2junit.sln
+++ b/trx2junit.sln
@@ -82,6 +82,7 @@ Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = ".azure", ".azure", "{5101A9
 EndProject
 Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "pipelines", "pipelines", "{8A80B7B0-F9B3-45C9-8796-C8049C43CD7E}"
 	ProjectSection(SolutionItems) = preProject
+		.azure\pipelines\ci-outer-loop.yml = .azure\pipelines\ci-outer-loop.yml
 		.azure\pipelines\ci-vectors.yml = .azure\pipelines\ci-vectors.yml
 		.azure\pipelines\ci.yml = .azure\pipelines\ci.yml
 	EndProjectSection
@@ -93,6 +94,7 @@ Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "jobs", "jobs", "{BF2D34D4-5
 		.azure\pipelines\jobs\coverage.yml = .azure\pipelines\jobs\coverage.yml
 		.azure\pipelines\jobs\deploy_nuget.yml = .azure\pipelines\jobs\deploy_nuget.yml
 		.azure\pipelines\jobs\e2e_tests.yml = .azure\pipelines\jobs\e2e_tests.yml
+		.azure\pipelines\jobs\e2e_tests_all.yml = .azure\pipelines\jobs\e2e_tests_all.yml
 	EndProjectSection
 EndProject
 Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "steps", "steps", "{947EBA33-4567-4F7D-AF42-6A986153577E}"
@@ -102,7 +104,7 @@ Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "steps", "steps", "{947EBA33
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "trx2junit.Core", "source\trx2junit.Core\trx2junit.Core.csproj", "{C83D7D6F-0E77-4F79-8942-6BB9FCA822AD}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "trx2junit.Core.Tests", "tests\trx2junit.Core.Tests\trx2junit.Core.Tests.csproj", "{C4EF7F3D-1923-4A3F-B780-96F6A62EDB82}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "trx2junit.Core.Tests", "tests\trx2junit.Core.Tests\trx2junit.Core.Tests.csproj", "{C4EF7F3D-1923-4A3F-B780-96F6A62EDB82}"
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution