diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 32b857d4f..2f277f7e5 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -67,7 +67,7 @@ jobs:
       fail-fast: false # prevent one matrix pipeline from being cancelled if one fails, we want them all to run to completion.
       matrix:
         winui: [2, 3]
-        multitarget: ['uwp', 'wasdk', 'wasm', 'wpf', 'linuxgtk', 'macos', 'ios', 'android']
+        multitarget: ['uwp', 'wasdk', 'wasm', 'unosdk', 'wpf', 'linuxgtk', 'macos', 'ios', 'android']
         exclude:
           # WinUI 2 not supported on wasdk
           - winui: 2
@@ -75,6 +75,12 @@ jobs:
           # WinUI 3 not supported on uwp
           - winui: 3
             multitarget: uwp
+          # WinUI 3 wasm is covered by the Uno.Sdk head (unosdk)
+          - winui: 3
+            multitarget: wasm
+          # Uno.Sdk head is WinUI 3 only
+          - winui: 2
+            multitarget: unosdk
 
     # Steps represent a sequence of tasks that will be executed as part of the job
     steps:
@@ -112,9 +118,9 @@ jobs:
         run: dotnet tool restore
 
       - name: Run Uno Check to Install Dependencies
-        if: ${{ matrix.multitarget != 'wasdk' && matrix.multitarget != 'linuxgtk' && matrix.multitarget != 'wpf' }}
+        if: ${{ matrix.multitarget != 'wasdk' && matrix.multitarget != 'linuxgtk' && matrix.multitarget != 'wpf' && matrix.multitarget != 'unosdk' }}
         run: >
-          dotnet tool run uno-check 
+          dotnet tool run uno-check
           --ci
           --target ${{ matrix.multitarget }}
           --fix
@@ -125,6 +131,12 @@ jobs:
           --skip vswin
           --verbose
 
+      # The Uno.Sdk head builds desktop/browserwasm/android (iOS is filtered on
+      # Windows). Install the matching workloads directly instead of uno-check.
+      - name: Install .NET workloads (Uno.Sdk head)
+        if: ${{ matrix.multitarget == 'unosdk' }}
+        run: dotnet workload install wasm-tools android ios maui
+
       - name: Add msbuild to PATH
         uses: microsoft/setup-msbuild@v2
         with:
@@ -132,11 +144,19 @@ jobs:
 
       # Generate full solution with all projects (sample gallery heads, components, tests)
       - name: Generate solution with ${{ matrix.multitarget }} gallery, components and tests
+        if: ${{ matrix.multitarget != 'unosdk' }}
         working-directory: ./
         run: powershell -version 5.1 -command "./tooling/GenerateAllSolution.ps1 -MultiTargets ${{ matrix.multitarget }} ${{ env.ENABLE_DIAGNOSTICS == 'true' && ' -UseDiagnostics' || '' }} -WinUIMajorVersion ${{ matrix.winui }}" -ErrorAction Stop
 
+      # The Uno.Sdk head covers wasm (browserwasm) for WinUI 3; generate with it included
+      - name: Generate solution with Uno.Sdk gallery, components and tests
+        if: ${{ matrix.multitarget == 'unosdk' }}
+        working-directory: ./
+        run: powershell -version 5.1 -command "./tooling/GenerateAllSolution.ps1 -MultiTargets wasm -IncludeUnoSdkHead -WinUIMajorVersion 3${{ env.ENABLE_DIAGNOSTICS == 'true' && ' -UseDiagnostics' || '' }}" -ErrorAction Stop
+
       # Build solution
       - name: MSBuild
+        if: ${{ matrix.multitarget != 'unosdk' }}
         run: >
           msbuild.exe /restore /nowarn:MSB4011
           /p:Configuration=Release
@@ -145,6 +165,12 @@ jobs:
           /v:${{ env.MSBUILD_VERBOSITY }}
           CommunityToolkit.AllComponents.sln
 
+      # The Uno.Sdk head is a single project covering desktop/browserwasm/android
+      # (iOS is filtered on Windows); build it directly with dotnet.
+      - name: Build Uno.Sdk head
+        if: ${{ matrix.multitarget == 'unosdk' }}
+        run: dotnet build tooling/ProjectHeads/AllComponents/Uno/CommunityToolkit.App.Uno.csproj -p:Configuration=Release ${{ env.ENABLE_DIAGNOSTICS == 'true' && '/bl' || '' }}
+
       # Run tests
       - name: Setup VSTest Path
         uses: darenm/setup-vstest@3a16d909a1f3bbc65b52f8270d475d905e7d3e44
@@ -424,7 +450,7 @@ jobs:
           --api-key ${{ secrets.NUGET_PACKAGE_PUSH_TOKEN }}
           --skip-duplicate
 
-  wasm-linux:
+  uno-linux:
     runs-on: ubuntu-latest
 
     steps:
@@ -439,6 +465,12 @@ jobs:
         with:
           global-json-file: global.json
 
+      # iOS/maccatalyst aren't installable on Linux (Uno.Sdk filters those TFMs
+      # there). android + wasm-tools are both required: even a single-TFM build
+      # restores all of the head's TargetFrameworks, validating net9.0-android.
+      - name: Install .NET workloads
+        run: dotnet workload install android wasm-tools
+
       - name: .NET Info (if diagnostics)
         if: ${{ env.ENABLE_DIAGNOSTICS == 'true' }}
         run: dotnet --info
@@ -447,31 +479,26 @@ jobs:
       - name: Restore dotnet tools
         run: dotnet tool restore
 
-      - name: Enable WASM TargetFrameworks
-        shell: pwsh
-        working-directory: ./${{ env.MULTI_TARGET_DIRECTORY }}
-        run: ./UseTargetFrameworks.ps1 wasm
-
+      # Generate the full solution with the Uno.Sdk gallery head, components and tests
       - name: Generate solution
         shell: pwsh
         working-directory: ./
-        run: ./tooling/GenerateAllSolution.ps1${{ env.ENABLE_DIAGNOSTICS == 'true' && ' -UseDiagnostics' || '' }}
+        run: ./tooling/GenerateAllSolution.ps1 -MultiTargets wasm -IncludeUnoSdkHead -WinUIMajorVersion 3${{ env.ENABLE_DIAGNOSTICS == 'true' && ' -UseDiagnostics' || '' }}
 
-      - name: Install ninja for WASM native dependencies
-        run: sudo apt-get install ninja-build
+      - name: Build Uno head (browserwasm)
+        shell: pwsh
+        working-directory: ./
+        run: dotnet build tooling/ProjectHeads/AllComponents/Uno/CommunityToolkit.App.Uno.csproj -f net9.0-browserwasm -p:Configuration=Release
 
-      # Issue with Comment Links currently, see: https://github.com/mrlacey/CommentLinks/issues/38
-      # See launch.json configuration file for analogous command we're emulating here to build LINK: ../../.vscode/launch.json:CommunityToolkit.App.Wasm.csproj
-      - name: dotnet build
-        working-directory: ./${{ env.HEADS_DIRECTORY }}/AllComponents/Wasm/
-        run: dotnet build /r /bl -v:${{ env.MSBUILD_VERBOSITY }}
-  
-      # TODO: Do we want to run tests here? Can we do that on linux easily?
+      - name: Build Uno head (desktop)
+        shell: pwsh
+        working-directory: ./
+        run: dotnet build tooling/ProjectHeads/AllComponents/Uno/CommunityToolkit.App.Uno.csproj -f net9.0-desktop -p:Configuration=Release
 
       - name: Artifact - Diagnostic Logs
         uses: actions/upload-artifact@v4
         if: ${{ (env.ENABLE_DIAGNOSTICS == 'true' || env.COREHOST_TRACE != '') && always() }}
         with:
-          name: linux-logs
+          name: uno-linux-logs
           path: ./**/*.*log
 
diff --git a/components/Animations/src/Xaml/Abstract/Animation{TValue,TKeyFrame}.cs b/components/Animations/src/Xaml/Abstract/Animation{TValue,TKeyFrame}.cs
index cc98af6e0..12e845e8d 100644
--- a/components/Animations/src/Xaml/Abstract/Animation{TValue,TKeyFrame}.cs
+++ b/components/Animations/src/Xaml/Abstract/Animation{TValue,TKeyFrame}.cs
@@ -30,11 +30,14 @@ public TValue? To
     /// <summary>
     /// Identifies the <seealso cref="To"/> dependency property.
     /// </summary>
+    // typeof(TValue?) is only used as dependency property metadata, not for reflective construction.
+#pragma warning disable IL2087
     public static readonly DependencyProperty ToProperty = DependencyProperty.Register(
         nameof(To),
         typeof(TValue?),
         typeof(Animation<TValue, TKeyFrame>),
         new PropertyMetadata(null));
+#pragma warning restore IL2087
 
     /// <summary>
     /// Gets or sets the optional starting value for the animation.
@@ -48,11 +51,14 @@ public TValue? From
     /// <summary>
     /// Identifies the <seealso cref="From"/> dependency property.
     /// </summary>
+    // typeof(TValue?) is only used as dependency property metadata, not for reflective construction.
+#pragma warning disable IL2087
     public static readonly DependencyProperty FromProperty = DependencyProperty.Register(
         nameof(From),
         typeof(TValue?),
         typeof(Animation<TValue, TKeyFrame>),
         new PropertyMetadata(null));
+#pragma warning restore IL2087
 
     /// <summary>
     /// Gets or sets the optional keyframe collection for the current animation.
diff --git a/components/Animations/src/Xaml/Abstract/KeyFrame{TValue,TKeyFrame}.cs b/components/Animations/src/Xaml/Abstract/KeyFrame{TValue,TKeyFrame}.cs
index ea5627cec..fbe2fadaa 100644
--- a/components/Animations/src/Xaml/Abstract/KeyFrame{TValue,TKeyFrame}.cs
+++ b/components/Animations/src/Xaml/Abstract/KeyFrame{TValue,TKeyFrame}.cs
@@ -60,11 +60,14 @@ public TValue? Value
     /// <summary>
     /// Identifies the <seealso cref="Value"/> dependency property.
     /// </summary>
+    // typeof(TValue?) is only used as dependency property metadata, not for reflective construction.
+#pragma warning disable IL2087
     public static readonly DependencyProperty ValueProperty = DependencyProperty.Register(
         nameof(Value),
         typeof(TValue?),
         typeof(KeyFrame<TValue, TKeyFrame>),
         new PropertyMetadata(null));
+#pragma warning restore IL2087
 
     /// <summary>
     /// Gets or sets the optional expression for the current keyframe.
diff --git a/components/Behaviors/src/Headers/HeaderBehaviorBase.cs b/components/Behaviors/src/Headers/HeaderBehaviorBase.cs
index 57b1c3756..e1eccdf06 100644
--- a/components/Behaviors/src/Headers/HeaderBehaviorBase.cs
+++ b/components/Behaviors/src/Headers/HeaderBehaviorBase.cs
@@ -184,7 +184,10 @@ private void ScrollViewer_GotFocus(object sender, RoutedEventArgs e)
         }
         else
         {
+            // Obsolete on WinUI 3/Uno, but required as a fallback where XamlRoot is unavailable (e.g. UWP).
+#pragma warning disable CS0618
             focusedElement = FocusManager.GetFocusedElement()!;
+#pragma warning restore CS0618
         }
 
         // To prevent Popups (Flyouts...) from triggering the autoscroll, we check if the focused element has a valid parent.
diff --git a/components/DeveloperTools/src/FocusTracker/FocusTracker.cs b/components/DeveloperTools/src/FocusTracker/FocusTracker.cs
index 39feacb29..c41c3496a 100644
--- a/components/DeveloperTools/src/FocusTracker/FocusTracker.cs
+++ b/components/DeveloperTools/src/FocusTracker/FocusTracker.cs
@@ -83,7 +83,10 @@ private void Start()
         }
         else
         {
+            // Obsolete on WinUI 3/Uno, but required as a fallback where XamlRoot is unavailable (e.g. UWP).
+#pragma warning disable CS0618
             if (FocusManager.GetFocusedElement() is FrameworkElement element)
+#pragma warning restore CS0618
             {
                 FocusOnControl(element);
             }
diff --git a/components/Segmented/src/Segmented/Segmented.cs b/components/Segmented/src/Segmented/Segmented.cs
index 6fbc6c301..ff85cb42e 100644
--- a/components/Segmented/src/Segmented/Segmented.cs
+++ b/components/Segmented/src/Segmented/Segmented.cs
@@ -116,7 +116,10 @@ private bool MoveFocus(int adjustment)
         }
         else
         {
+            // Obsolete on WinUI 3/Uno, but required as a fallback where XamlRoot is unavailable (e.g. UWP).
+#pragma warning disable CS0618
             return FocusManager.GetFocusedElement() as SegmentedItem;
+#pragma warning restore CS0618
         }
     }
 
diff --git a/components/SettingsControls/src/SettingsCard/SettingsCard.cs b/components/SettingsControls/src/SettingsCard/SettingsCard.cs
index ef1d4a09e..02ecd2358 100644
--- a/components/SettingsControls/src/SettingsCard/SettingsCard.cs
+++ b/components/SettingsControls/src/SettingsCard/SettingsCard.cs
@@ -322,7 +322,10 @@ private void CheckVerticalSpacingState(VisualState s)
         }
         else
         {
+            // Obsolete on WinUI 3/Uno, but required as a fallback where XamlRoot is unavailable (e.g. UWP).
+#pragma warning disable CS0618
             return FocusManager.GetFocusedElement() as FrameworkElement;
+#pragma warning restore CS0618
         }
     }
 
diff --git a/components/TokenizingTextBox/src/TokenizingTextBox.Selection.cs b/components/TokenizingTextBox/src/TokenizingTextBox.Selection.cs
index 0b20a6fee..b13a21c28 100644
--- a/components/TokenizingTextBox/src/TokenizingTextBox.Selection.cs
+++ b/components/TokenizingTextBox/src/TokenizingTextBox.Selection.cs
@@ -141,7 +141,10 @@ private bool MoveFocusAndSelection(MoveDirection direction)
         }
         else
         {
+            // Obsolete on WinUI 3/Uno, but required as a fallback where XamlRoot is unavailable (e.g. UWP).
+#pragma warning disable CS0618
             return FocusManager.GetFocusedElement() as TokenizingTextBoxItem;
+#pragma warning restore CS0618
         }
     }
 
diff --git a/components/TokenizingTextBox/src/TokenizingTextBox.cs b/components/TokenizingTextBox/src/TokenizingTextBox.cs
index db1dd0122..ea48b3eb1 100644
--- a/components/TokenizingTextBox/src/TokenizingTextBox.cs
+++ b/components/TokenizingTextBox/src/TokenizingTextBox.cs
@@ -361,7 +361,10 @@ private object GetFocusedElement()
         }
         else
         {
+            // Obsolete on WinUI 3/Uno, but required as a fallback where XamlRoot is unavailable (e.g. UWP).
+#pragma warning disable CS0618
             return FocusManager.GetFocusedElement()!;
+#pragma warning restore CS0618
         }
     }
 
diff --git a/tooling b/tooling
index 394263e10..ded6698f1 160000
--- a/tooling
+++ b/tooling
@@ -1 +1 @@
-Subproject commit 394263e1054cac12c5feb49ae2458f5e13681a68
+Subproject commit ded6698f1c9aedc8d0228c52c3ed520b4b3b4134