kMutagene · Nov 12, 2026 · Apr 2, 2026 · Nov 12, 2026 · Nov 12, 2026 · Nov 12, 2026
diff --git a/.github/workflows/build-and-test.yml b/.github/workflows/build-and-test.yml
@@ -6,11 +6,15 @@ on:
   pull_request:
     branches: [ dev ]
 
+env:
+  PUPPETEER_CACHE_DIR: ${{ github.workspace }}/.cache/verso-browser
+  PLOTLY_VERSO_TEST_ARTIFACTS: ${{ github.workspace }}/tests/VersoTests/artifacts/browser
 
 jobs:
   build-and-test-linux:
 
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-24.04
+    timeout-minutes: 30
 
     steps:
     - uses: actions/checkout@v4
@@ -21,13 +25,32 @@ jobs:
           10.x.x
     - name: make script executable
       run: chmod u+x build.sh
+    - name: Install Chromium libraries
+      run: |
+        sudo apt-get update
+        sudo apt-get install -y --no-install-recommends fonts-liberation libasound2t64 libatk-bridge2.0-0t64 libgbm1 libgtk-3-0t64 libnss3 libxss1
+    - uses: actions/cache@v4
+      with:
+        path: .cache/verso-browser
+        key: verso-chromium-${{ runner.os }}-puppeteersharp-25.15.0
+    - name: Provision pinned Chromium
+      run: ./build.sh PrepareVersoBrowser
     - name: Build and test
       working-directory: ./
       run: ./build.sh runtestsall
+    - name: Upload test diagnostics
+      if: failure()
+      uses: actions/upload-artifact@v4
+      with:
+        name: tests-linux
+        path: |
+          **/TestResults/**
+          tests/VersoTests/artifacts/browser/**
 
   build-and-test-windows:
 
     runs-on: windows-latest
+    timeout-minutes: 30
 
     steps:
     - uses: actions/checkout@v4
@@ -36,6 +59,53 @@ jobs:
       with:
         dotnet-version: |
           10.x.x
+    - uses: actions/cache@v4
+      with:
+        path: .cache/verso-browser
+        key: verso-chromium-${{ runner.os }}-puppeteersharp-25.15.0
+    - name: Provision pinned Chromium
+      run: ./build.cmd PrepareVersoBrowser
     - name: Build and test
       working-directory: ./
       run: ./build.cmd runtestsall
+    - name: Upload test diagnostics
+      if: failure()
+      uses: actions/upload-artifact@v4
+      with:
+        name: tests-windows
+        path: |
+          **/TestResults/**
+          tests/VersoTests/artifacts/browser/**
+
+  verso-package-integration:
+    runs-on: ubuntu-24.04
+    timeout-minutes: 30
+    steps:
+    - uses: actions/checkout@v4
+    - uses: actions/setup-dotnet@v4
+      with:
+        dotnet-version: 10.x.x
+    - name: Install Chromium libraries
+      run: |
+        sudo apt-get update
+        sudo apt-get install -y --no-install-recommends fonts-liberation libasound2t64 libatk-bridge2.0-0t64 libgbm1 libgtk-3-0t64 libnss3 libxss1
+    - uses: actions/cache@v4
+      with:
+        path: .cache/verso-browser
+        key: verso-chromium-${{ runner.os }}-puppeteersharp-25.15.0
+    - name: Test local packages in Verso 1.2.3
+      run: |
+        chmod u+x build.sh
+        ./build.sh RunVersoIntegrationTests
+    - name: Upload host diagnostics
+      if: always()
+      uses: actions/upload-artifact@v4
+      with:
+        name: verso-host-integration
+        path: |
+          tests/VersoTests/artifacts/packages.json
+          tests/VersoTests/artifacts/runs/*/*.log
+          tests/VersoTests/artifacts/runs/*/*.json
+          tests/VersoTests/artifacts/runs/*/*.html
+          tests/VersoTests/artifacts/runs/*/*.png
+          tests/VersoTests/artifacts/runs/*/*.verso
diff --git a/.gitignore b/.gitignore
@@ -170,6 +170,7 @@ packages/
 
 # Test results produced by build
 TestResults.xml
+**/TestResults/
 
 # Nuget outputs
 nuget/*.nupkg
@@ -197,3 +198,6 @@ temp/gh-pages
 /plotly-gource.x264.avi
 /plotly-gource.ppm
 /tests/InteractiveTests/pkg
+/tests/VersoTests/pkg
+/tests/VersoTests/artifacts/
+/.cache/verso-browser/
diff --git a/AGENTS.md b/AGENTS.md
@@ -90,8 +90,12 @@ For faster local iteration, prefer the FAKE `*Fast` test targets. These skip the
 ./build.cmd RunTestsExtensionLibsFast
 ./build.cmd RunImageExportTestsFast
 ./build.cmd RunCSharpTestsFast
+./build.cmd RunVersoTestsFast
+./build.cmd RunVersoBrowserTestsFast
 ```
 
+Verso's packaged CLI/web-host smoke uses `RunVersoIntegrationTests` separately from the regular unit/browser aggregate. `PrepareVersoBrowser` provisions the pinned Chromium revision. See `tests/README.md` for cache isolation and the VS Code release smoke.
+
 Use the fast targets during implementation, but **always run a full `./build.cmd runTestsAll` before committing changes** so the clean end-to-end pipeline is exercised at least once.
 
 ### Writing tests

diff --git a/Plotly.NET.TestSuite.sln b/Plotly.NET.TestSuite.sln
@@ -28,6 +28,28 @@ Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = ".project", ".project", "{F8
 		tests\README.md = tests\README.md
 	EndProjectSection
 EndProject
+Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "tests", "tests", "{0AB3BF05-4346-4AA6-1389-037BE0695223}"
+EndProject
+Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "ExtensionLibsTests", "ExtensionLibsTests", "{B49D0B3A-AF90-AE88-9F71-7A7FA5B38005}"
+EndProject
+Project("{F2A71F9B-5D33-465A-A702-920D77279786}") = "VersoTests", "tests\ExtensionLibsTests\VersoTests\VersoTests.fsproj", "{EA82753E-7A5C-4C0E-8F5F-79F638DBDC5C}"
+EndProject
+Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "src", "src", "{827E0CD3-B72D-47B6-A68D-7590B98EB39B}"
+EndProject
+Project("{F2A71F9B-5D33-465A-A702-920D77279786}") = "Plotly.NET.Verso", "src\Plotly.NET.Verso\Plotly.NET.Verso.fsproj", "{3C58E7CB-7FC6-4031-B807-A00B72F0E1DF}"
+EndProject
+Project("{F2A71F9B-5D33-465A-A702-920D77279786}") = "Plotly.NET", "src\Plotly.NET\Plotly.NET.fsproj", "{BF17461A-8C55-4FCA-BB12-C7FA4AC39441}"
+EndProject
+Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Common", "Common", "{E20385C6-4CD7-5BF4-C007-71E5EE00BC8D}"
+EndProject
+Project("{F2A71F9B-5D33-465A-A702-920D77279786}") = "VersoBrowserTests", "tests\ExtensionLibsTests\VersoBrowserTests\VersoBrowserTests.fsproj", "{888575C4-AB72-4A6F-BD57-2DAE9797B81D}"
+EndProject
+Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "VersoTests", "VersoTests", "{9AC19BB9-EF0B-987F-09AE-8434E842AE82}"
+EndProject
+Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Integration", "Integration", "{A1E1AFD6-AA71-8DED-553C-085284F01554}"
+EndProject
+Project("{F2A71F9B-5D33-465A-A702-920D77279786}") = "VersoIntegrationTests", "tests\VersoTests\Integration\VersoIntegrationTests.fsproj", "{BD7E66B6-7E4F-499F-BD7D-F89FA57B61C9}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -58,6 +80,26 @@ Global
 		{B1214EE4-C1D4-4046-975D-A06373390E71}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{B1214EE4-C1D4-4046-975D-A06373390E71}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{B1214EE4-C1D4-4046-975D-A06373390E71}.Release|Any CPU.Build.0 = Release|Any CPU
+		{EA82753E-7A5C-4C0E-8F5F-79F638DBDC5C}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{EA82753E-7A5C-4C0E-8F5F-79F638DBDC5C}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{EA82753E-7A5C-4C0E-8F5F-79F638DBDC5C}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{EA82753E-7A5C-4C0E-8F5F-79F638DBDC5C}.Release|Any CPU.Build.0 = Release|Any CPU
+		{3C58E7CB-7FC6-4031-B807-A00B72F0E1DF}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{3C58E7CB-7FC6-4031-B807-A00B72F0E1DF}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{3C58E7CB-7FC6-4031-B807-A00B72F0E1DF}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{3C58E7CB-7FC6-4031-B807-A00B72F0E1DF}.Release|Any CPU.Build.0 = Release|Any CPU
+		{BF17461A-8C55-4FCA-BB12-C7FA4AC39441}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{BF17461A-8C55-4FCA-BB12-C7FA4AC39441}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{BF17461A-8C55-4FCA-BB12-C7FA4AC39441}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{BF17461A-8C55-4FCA-BB12-C7FA4AC39441}.Release|Any CPU.Build.0 = Release|Any CPU
+		{888575C4-AB72-4A6F-BD57-2DAE9797B81D}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{888575C4-AB72-4A6F-BD57-2DAE9797B81D}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{888575C4-AB72-4A6F-BD57-2DAE9797B81D}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{888575C4-AB72-4A6F-BD57-2DAE9797B81D}.Release|Any CPU.Build.0 = Release|Any CPU
+		{BD7E66B6-7E4F-499F-BD7D-F89FA57B61C9}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{BD7E66B6-7E4F-499F-BD7D-F89FA57B61C9}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{BD7E66B6-7E4F-499F-BD7D-F89FA57B61C9}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{BD7E66B6-7E4F-499F-BD7D-F89FA57B61C9}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
@@ -69,6 +111,15 @@ Global
 		{FEAB6AB7-1F9A-4E75-B047-F34C3AE1919B} = {6C49B0AB-8502-4E46-9348-64161F84E727}
 		{24AE6CF2-8A86-4F8B-82D6-30D04D674933} = {CCB58D28-C02B-49A8-8614-8BD3D4FA9DF9}
 		{B1214EE4-C1D4-4046-975D-A06373390E71} = {CCB58D28-C02B-49A8-8614-8BD3D4FA9DF9}
+		{B49D0B3A-AF90-AE88-9F71-7A7FA5B38005} = {0AB3BF05-4346-4AA6-1389-037BE0695223}
+		{EA82753E-7A5C-4C0E-8F5F-79F638DBDC5C} = {B49D0B3A-AF90-AE88-9F71-7A7FA5B38005}
+		{3C58E7CB-7FC6-4031-B807-A00B72F0E1DF} = {827E0CD3-B72D-47B6-A68D-7590B98EB39B}
+		{BF17461A-8C55-4FCA-BB12-C7FA4AC39441} = {827E0CD3-B72D-47B6-A68D-7590B98EB39B}
+		{E20385C6-4CD7-5BF4-C007-71E5EE00BC8D} = {0AB3BF05-4346-4AA6-1389-037BE0695223}
+		{888575C4-AB72-4A6F-BD57-2DAE9797B81D} = {B49D0B3A-AF90-AE88-9F71-7A7FA5B38005}
+		{9AC19BB9-EF0B-987F-09AE-8434E842AE82} = {0AB3BF05-4346-4AA6-1389-037BE0695223}
+		{A1E1AFD6-AA71-8DED-553C-085284F01554} = {9AC19BB9-EF0B-987F-09AE-8434E842AE82}
+		{BD7E66B6-7E4F-499F-BD7D-F89FA57B61C9} = {A1E1AFD6-AA71-8DED-553C-085284F01554}
 	EndGlobalSection
 	GlobalSection(ExtensibilityGlobals) = postSolution
 		SolutionGuid = {67F9FFDF-3841-4DE1-9A55-9494FFC0A288}

diff --git a/Plotly.NET.sln b/Plotly.NET.sln
@@ -233,6 +233,20 @@ Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "data", "data", "{0D955C86-2
 EndProject
 Project("{F2A71F9B-5D33-465A-A702-920D77279786}") = "InteractiveTests", "tests\ExtensionLibsTests\InteractiveTests\InteractiveTests.fsproj", "{04BC8CE5-B096-46AD-AB1D-674305BAF59A}"
 EndProject
+Project("{F2A71F9B-5D33-465A-A702-920D77279786}") = "Plotly.NET.Verso", "src\Plotly.NET.Verso\Plotly.NET.Verso.fsproj", "{4E9DAEE7-0162-4E01-A690-CBA668F26B19}"
+EndProject
+Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "ExtensionLibsTests", "ExtensionLibsTests", "{B97B26B6-548F-4656-B980-20BD04D168C7}"
+EndProject
+Project("{F2A71F9B-5D33-465A-A702-920D77279786}") = "VersoTests", "tests\ExtensionLibsTests\VersoTests\VersoTests.fsproj", "{30EDCE67-AAEC-4138-A24C-D752012F03F3}"
+EndProject
+Project("{F2A71F9B-5D33-465A-A702-920D77279786}") = "VersoBrowserTests", "tests\ExtensionLibsTests\VersoBrowserTests\VersoBrowserTests.fsproj", "{BA1748AB-FF1A-441D-BE91-E81394AA7036}"
+EndProject
+Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "VersoTests", "VersoTests", "{DDBAA935-5A2C-D257-BB32-F100901CEBDA}"
+EndProject
+Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Integration", "Integration", "{610A9D23-4258-9593-5A5B-D958211BF92A}"
+EndProject
+Project("{F2A71F9B-5D33-465A-A702-920D77279786}") = "VersoIntegrationTests", "tests\VersoTests\Integration\VersoIntegrationTests.fsproj", "{F12070A1-8811-408F-B6A3-7B34023D3807}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -318,6 +332,30 @@ Global
 		{04BC8CE5-B096-46AD-AB1D-674305BAF59A}.Dotnet|Any CPU.Build.0 = Debug|Any CPU
 		{04BC8CE5-B096-46AD-AB1D-674305BAF59A}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{04BC8CE5-B096-46AD-AB1D-674305BAF59A}.Release|Any CPU.Build.0 = Release|Any CPU
+		{4E9DAEE7-0162-4E01-A690-CBA668F26B19}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{4E9DAEE7-0162-4E01-A690-CBA668F26B19}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{4E9DAEE7-0162-4E01-A690-CBA668F26B19}.Dotnet|Any CPU.ActiveCfg = Debug|Any CPU
+		{4E9DAEE7-0162-4E01-A690-CBA668F26B19}.Dotnet|Any CPU.Build.0 = Debug|Any CPU
+		{4E9DAEE7-0162-4E01-A690-CBA668F26B19}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{4E9DAEE7-0162-4E01-A690-CBA668F26B19}.Release|Any CPU.Build.0 = Release|Any CPU
+		{30EDCE67-AAEC-4138-A24C-D752012F03F3}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{30EDCE67-AAEC-4138-A24C-D752012F03F3}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{30EDCE67-AAEC-4138-A24C-D752012F03F3}.Dotnet|Any CPU.ActiveCfg = Debug|Any CPU
+		{30EDCE67-AAEC-4138-A24C-D752012F03F3}.Dotnet|Any CPU.Build.0 = Debug|Any CPU
+		{30EDCE67-AAEC-4138-A24C-D752012F03F3}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{30EDCE67-AAEC-4138-A24C-D752012F03F3}.Release|Any CPU.Build.0 = Release|Any CPU
+		{BA1748AB-FF1A-441D-BE91-E81394AA7036}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{BA1748AB-FF1A-441D-BE91-E81394AA7036}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{BA1748AB-FF1A-441D-BE91-E81394AA7036}.Dotnet|Any CPU.ActiveCfg = Debug|Any CPU
+		{BA1748AB-FF1A-441D-BE91-E81394AA7036}.Dotnet|Any CPU.Build.0 = Debug|Any CPU
+		{BA1748AB-FF1A-441D-BE91-E81394AA7036}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{BA1748AB-FF1A-441D-BE91-E81394AA7036}.Release|Any CPU.Build.0 = Release|Any CPU
+		{F12070A1-8811-408F-B6A3-7B34023D3807}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{F12070A1-8811-408F-B6A3-7B34023D3807}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{F12070A1-8811-408F-B6A3-7B34023D3807}.Dotnet|Any CPU.ActiveCfg = Debug|Any CPU
+		{F12070A1-8811-408F-B6A3-7B34023D3807}.Dotnet|Any CPU.Build.0 = Debug|Any CPU
+		{F12070A1-8811-408F-B6A3-7B34023D3807}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{F12070A1-8811-408F-B6A3-7B34023D3807}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
@@ -359,6 +397,13 @@ Global
 		{2DF92AB2-7B8C-48D5-B779-26BA1F31BCA1} = {A9025690-FABC-4BD3-AC94-F31B60A948B4}
 		{0D955C86-2E86-4D50-828A-6CF5AD99A119} = {7B09CC0A-F1E1-4094-9DE4-B047581E01F0}
 		{04BC8CE5-B096-46AD-AB1D-674305BAF59A} = {02886FBB-DB32-4BBB-A93C-E13EBF453ACC}
+		{4E9DAEE7-0162-4E01-A690-CBA668F26B19} = {0E87E47E-9EDC-4525-AF72-F0E139D54236}
+		{B97B26B6-548F-4656-B980-20BD04D168C7} = {EAE25A1F-86FC-426B-803F-1006D1AD06A8}
+		{30EDCE67-AAEC-4138-A24C-D752012F03F3} = {B97B26B6-548F-4656-B980-20BD04D168C7}
+		{BA1748AB-FF1A-441D-BE91-E81394AA7036} = {B97B26B6-548F-4656-B980-20BD04D168C7}
+		{DDBAA935-5A2C-D257-BB32-F100901CEBDA} = {EAE25A1F-86FC-426B-803F-1006D1AD06A8}
+		{610A9D23-4258-9593-5A5B-D958211BF92A} = {DDBAA935-5A2C-D257-BB32-F100901CEBDA}
+		{F12070A1-8811-408F-B6A3-7B34023D3807} = {610A9D23-4258-9593-5A5B-D958211BF92A}
 	EndGlobalSection
 	GlobalSection(ExtensibilityGlobals) = postSolution
 		SolutionGuid = {7177F1E1-341C-48AB-9864-6B525FFF7633}

diff --git a/README.md b/README.md
@@ -48,17 +48,20 @@ In short, Plotly.NET consists of multiple API layers and packages:
 
 - `Plotly.NET.Interactive` - This package provides interactive formatting extensions for .NET interactive notebooks.
 
+- `Plotly.NET.Verso` - Inline chart formatting for Verso notebooks, including embedded offline charts. See the [Verso guide](src/Plotly.NET.Verso/README.md) for registration and migration from Polyglot.
+
 - `Plotly.NET.ImageExport` - This package provides extensions for Plotly.NET to render charts as static images programmatically.
 
 - `Plotly.NET.CSharp` - This package provides an idiomatic C# API. Note that you can use the core API in C#, this package just removes some friction at some places.
 # Installation
 
-You can get all Plotly.NET packages via nuget:
+Published Plotly.NET packages are available via NuGet:
 
 | Package Name| Nuget |
 |---|---|
 | [Plotly.NET](src/Plotly.NET/README.md) | [![](https://img.shields.io/nuget/vpre/Plotly.NET)](https://www.nuget.org/packages/Plotly.NET/) |
 | [Plotly.NET.Interactive](src/Plotly.NET.Interactive/README.md) | [![](https://img.shields.io/nuget/vpre/Plotly.NET.Interactive)](https://www.nuget.org/packages/Plotly.NET.Interactive/) |
+| [Plotly.NET.Verso](src/Plotly.NET.Verso/README.md) | Initial release; [local testing before publication](tests/README.md#verso-tests) |
 | [Plotly.NET.ImageExport](src/Plotly.NET.ImageExport/README.md) | [![](https://img.shields.io/nuget/vpre/Plotly.NET.ImageExport)](https://www.nuget.org/packages/Plotly.NET.ImageExport/) |
 | [Plotly.NET.CSharp](src/Plotly.NET.CSharp/README.md) | [![](https://img.shields.io/nuget/vpre/Plotly.NET.CSharp)](https://www.nuget.org/packages/Plotly.NET.CSharp/) |
 
@@ -70,6 +73,8 @@ You can get all Plotly.NET packages via nuget:
 
 In F# projects, just add the `Plotly.NET` package to your project and you are ready to go!
 
+For **Verso notebooks**, use [Plotly.NET.Verso](src/Plotly.NET.Verso/README.md) and its explicit extension-registration step. `Plotly.NET.Interactive` below is the adapter for .NET Interactive / Polyglot Notebooks.
+
 <details>
 <summary> 📖 Polyglot Notebook 📖 Quick start</summary>
 

diff --git a/build/Build.fs b/build/Build.fs
@@ -11,11 +11,15 @@ open Helpers
 open BasicTasks
 open TestTasks
 open PackageTasks
+open VersoTasks
 open DocumentationTasks
 open ReleaseTasks
 
 initializeContext ()
 
+// Reference the independent integration module so its targets are registered.
+let private _versoIntegration = runVersoIntegrationTests
+
 open BasicTasks
 
 //workaround for tasks created with functions not being runnable.
@@ -33,6 +37,7 @@ let sourceFiles =
     !! "src/Plotly.NET/**/*.fs"
     ++ "src/Plotly.NET.ImageExport/**/*.fs"
     ++ "src/Plotly.NET.Interactive/**/*.fs"
+    ++ "src/Plotly.NET.Verso/**/*.fs"
     ++ "build/*.fs"
     -- "**/obj/**/*.*"
     -- "**/bin/**/*.*"

diff --git a/build/ProjectInfo.fs b/build/ProjectInfo.fs
@@ -81,24 +81,34 @@ let testProjectsCore = [
 
 let ImageExportTestProject = ProjectInfo.create("ImageExportTests", "tests/ExtensionLibsTests/ImageExportTests/ImageExportTests.fsproj")
 let CSharpTestProject = ProjectInfo.create("CSharpTests", "tests/ExtensionLibsTests/CSharpTests/CSharpTests.csproj")
+let VersoTestProject = ProjectInfo.create("VersoTests", "tests/ExtensionLibsTests/VersoTests/VersoTests.fsproj")
+let VersoBrowserTestProject = ProjectInfo.create("VersoBrowserTests", "tests/ExtensionLibsTests/VersoBrowserTests/VersoBrowserTests.fsproj")
+let VersoIntegrationTestProject = ProjectInfo.create("VersoIntegrationTests", "tests/VersoTests/Integration/VersoIntegrationTests.fsproj")
+
+// Real-host tests have their own target because they install and launch the pinned Verso CLI.
+let testProjectsVersoIntegration = [ VersoIntegrationTestProject ]
 
 ///
 let testProjectsExtensionsLibs = [
     ImageExportTestProject
     CSharpTestProject
+    VersoTestProject
+    VersoBrowserTestProject
 ]
 
 let CoreProject = ProjectInfo.create("Plotly.NET", "src/Plotly.NET/Plotly.NET.fsproj", "src/Plotly.NET/RELEASE_NOTES.md")
 let InteractiveProject = ProjectInfo.create("Plotly.NET.Interactive", "src/Plotly.NET.Interactive/Plotly.NET.Interactive.fsproj", "src/Plotly.NET.Interactive/RELEASE_NOTES.md")
 let ImageExportProject = ProjectInfo.create("Plotly.NET.ImageExport", "src/Plotly.NET.ImageExport/Plotly.NET.ImageExport.fsproj", "src/Plotly.NET.ImageExport/RELEASE_NOTES.md")
 let CSharpProject = ProjectInfo.create("Plotly.NET.CSharp", "src/Plotly.NET.CSharp/Plotly.NET.CSharp.csproj", "src/Plotly.NET.CSharp/RELEASE_NOTES.md")
+let VersoProject = ProjectInfo.create("Plotly.NET.Verso", "src/Plotly.NET.Verso/Plotly.NET.Verso.fsproj", "src/Plotly.NET.Verso/RELEASE_NOTES.md")
 
 /// contains project info about all projects
 let projects = [
    CoreProject
    InteractiveProject
    ImageExportProject
    CSharpProject
+   VersoProject
 ]
 
 /// docs are always targeting the version of the core project