diff --git a/CHANGELOG.md b/CHANGELOG.md
index 85415b7a5..be07ebc17 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,11 @@
 # Win2D Changelog
 
+## Win2D-WinUI 1.4.0
+_February ??, 2026_
+- Update WindowsAppSDK to use WindowsAppSDK.WinUI package and 1.8.260204000
+- Update BuildTools version to 10.0.28000.1-RTM
+- Update CsWinRT to 2.2.0
+
 ## Win2D-WinUI 1.3.2
 _January 22nd, 2025_
 - Enable transitive MSBuild configuration
diff --git a/build/WindowsAppSdk.common.props b/build/WindowsAppSdk.common.props
index 60c345ab5..f64b28573 100644
--- a/build/WindowsAppSdk.common.props
+++ b/build/WindowsAppSdk.common.props
@@ -1,17 +1,18 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
     <PropertyGroup>
+        <CsWinRTVersion>2.2.0</CsWinRTVersion>
         <!-- This value controls all of the projects consuming the WindowsAppSdk and centralizes it in one spot.
             When updating the version, don't forget to update all of the package.config files as well.
             The AzureDevOps pipeline will override the version here by setting NIGHTLY_WINAPPSDK_VERSION in the nightly build.
             That nightly version is read from \eng\Version.Details.xml -->
-        <WindowsAppSdkVersion Condition="'$(NIGHTLY_WINAPPSDK_VERSION)' == ''">1.6.241114003</WindowsAppSdkVersion>
+        <WindowsAppSdkVersion Condition="'$(NIGHTLY_WINAPPSDK_VERSION)' == ''">1.8.260204000</WindowsAppSdkVersion>
         <WindowsAppSdkVersion Condition="'$(NIGHTLY_WINAPPSDK_VERSION)' != ''">$(NIGHTLY_WINAPPSDK_VERSION)</WindowsAppSdkVersion>
 
         <_PackagesPath>$([System.IO.Path]::GetFullPath('$(MSBuildThisFileDirectory)..\packages'))</_PackagesPath>
-        <_WindowsAppSdkPackageRoot>$(_PackagesPath)\Microsoft.WindowsAppSdk.$(WindowsAppSdkVersion)</_WindowsAppSdkPackageRoot>
+        <_WindowsAppSdkPackageRoot>$(_PackagesPath)\Microsoft.WindowsAppSDK.WinUI.$(WindowsAppSdkVersion)</_WindowsAppSdkPackageRoot>
 
-        <WindowsAppSdk_props>$(_WindowsAppSdkPackageRoot)\build\native\Microsoft.WindowsAppSdk.props</WindowsAppSdk_props>
-        <WindowsAppSdk_targets>$(_WindowsAppSdkPackageRoot)\build\native\Microsoft.WindowsAppSdk.targets</WindowsAppSdk_targets>
+        <WindowsAppSdk_props>$(_WindowsAppSdkPackageRoot)\build\native\Microsoft.WindowsAppSDK.WinUI.props</WindowsAppSdk_props>
+        <WindowsAppSdk_targets>$(_WindowsAppSdkPackageRoot)\build\native\Microsoft.WindowsAppSDK.WinUI.targets</WindowsAppSdk_targets>
     </PropertyGroup>
 </Project>
diff --git a/build/nuget/Microsoft.Graphics.Win2D.nuspec b/build/nuget/Microsoft.Graphics.Win2D.nuspec
index d6bc7b9e0..df7a08575 100644
--- a/build/nuget/Microsoft.Graphics.Win2D.nuspec
+++ b/build/nuget/Microsoft.Graphics.Win2D.nuspec
@@ -14,7 +14,7 @@
         <copyright>© Microsoft Corporation. All rights reserved.</copyright>
         <tags>graphics 2D Direct2D DirectX WinRT XAML canvas drawing C# C++ Windows Reunion ProjectReunion WindowsAppSdk</tags>
         <dependencies>
-            <dependency id="Microsoft.WindowsAppSDK" version="1.6.241114003" />
+            <dependency id="Microsoft.WindowsAppSDK.WinUI" version="1.8.260204000" />
         </dependencies>
     </metadata>
     
diff --git a/build/nuget/VERSION b/build/nuget/VERSION
index d5e98f723..e21e727f9 100644
--- a/build/nuget/VERSION
+++ b/build/nuget/VERSION
@@ -1 +1 @@
-1.3.2
\ No newline at end of file
+1.4.0
\ No newline at end of file
diff --git a/build/pkges/packages.config b/build/pkges/packages.config
index 053b3ed27..234638a6e 100644
--- a/build/pkges/packages.config
+++ b/build/pkges/packages.config
@@ -1,4 +1,4 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="Microsoft.WindowsAppSdk" version="1.6.241114003" targetFramework="native" />
+  <package id="Microsoft.WindowsAppSDK.WinUI" version="1.8.260204000" targetFramework="native" />
 </packages>
diff --git a/eng/Version.Details.xml b/eng/Version.Details.xml
index e5cc105d0..d6fe558b1 100644
--- a/eng/Version.Details.xml
+++ b/eng/Version.Details.xml
@@ -11,7 +11,7 @@ Licensed under the MIT License. See LICENSE.txt in the project root for license
      defined in build\WindowsAppSdk.common.props -->
 <Dependencies>
   <ProductDependencies>
-    <Dependency Name="Microsoft.WindowsAppSDK" Version="1.1.0">
+    <Dependency Name="Microsoft.WindowsAppSDK.WinUI" Version="1.8.260204000">
       <Uri>https://dev.azure.com/microsoft/ProjectReunion/_git/ProjectReunionInternal</Uri>
       <Sha>e9f6d119a70db6516304e4ed00b080ce46dc4bee</Sha>
     </Dependency>
diff --git a/eng/Versions.props b/eng/Versions.props
index da78d2f92..e7b94a4ef 100644
--- a/eng/Versions.props
+++ b/eng/Versions.props
@@ -6,7 +6,7 @@ Licensed under the MIT License. See LICENSE.txt in the project root for license
 -->
 <Dependencies>
   <ProductDependencies>
-    <Dependency Name="Microsoft.WindowsAppSDK" Version="1.0.0">
+    <Dependency Name="Microsoft.WindowsAppSDK.WinUI" Version="1.8.260204000">
       <Uri>https://dev.azure.com/microsoft/WindowsAppSDK</Uri>
       <Sha>400c67880dae14f57e388cf8eb364d60fe814eb6</Sha>
     </Dependency>
diff --git a/winrt/dll/packages.config b/winrt/dll/packages.config
index 535161157..32c240e87 100644
--- a/winrt/dll/packages.config
+++ b/winrt/dll/packages.config
@@ -1,4 +1,4 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="Microsoft.WindowsAppSdk" version="1.6.241114003" targetFramework="native" />
+  <package id="Microsoft.WindowsAppSDK.WinUI" version="1.8.260204000" targetFramework="native" />
 </packages>
\ No newline at end of file
diff --git a/winrt/lib/packages.config b/winrt/lib/packages.config
index d4eb0ffa2..9b81d2418 100644
--- a/winrt/lib/packages.config
+++ b/winrt/lib/packages.config
@@ -1,7 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="Microsoft.Web.WebView2" version="1.0.2792.45" targetFramework="native" />
   <package id="Microsoft.Windows.AbiWinRT" version="2.0.210330.2" targetFramework="native" />
   <package id="Microsoft.Windows.MidlRT" version="2.0.200924.1" targetFramework="native" />
-  <package id="Microsoft.WindowsAppSdk" version="1.6.241114003" targetFramework="native" />
+  <package id="Microsoft.WindowsAppSDK.WinUI" version="1.8.260204000" targetFramework="native" />
 </packages>
\ No newline at end of file
diff --git a/winrt/lib/winrt.lib.uap.vcxproj b/winrt/lib/winrt.lib.uap.vcxproj
index 4941acd8c..d1be45f65 100644
--- a/winrt/lib/winrt.lib.uap.vcxproj
+++ b/winrt/lib/winrt.lib.uap.vcxproj
@@ -502,11 +502,9 @@
     <Error Condition="!Exists('..\..\packages\Microsoft.Windows.AbiWinRT.2.0.210330.2\build\native\Microsoft.Windows.AbiWinRT.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\..\packages\Microsoft.Windows.AbiWinRT.2.0.210330.2\build\native\Microsoft.Windows.AbiWinRT.targets'))" />
     <Error Condition="!Exists('$(WindowsAppSdk_props)')" Text="$([System.String]::Format('$(ErrorText)', '$(WindowsAppSdk_props)'))" />
     <Error Condition="!Exists('$(WindowsAppSdk_targets)')" Text="$([System.String]::Format('$(ErrorText)', '$(WindowsAppSdk_targets)'))" />
-    <Error Condition="!Exists('..\..\packages\Microsoft.Web.WebView2.1.0.2792.45\build\native\Microsoft.Web.WebView2.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\..\packages\Microsoft.Web.WebView2.1.0.2792.45\build\native\Microsoft.Web.WebView2.targets'))" />
   </Target>
   <Import Project="..\..\packages\Microsoft.Windows.MidlRT.2.0.200924.1\build\native\Microsoft.Windows.MidlRT.targets" Condition="Exists('..\..\packages\Microsoft.Windows.MidlRT.2.0.200924.1\build\native\Microsoft.Windows.MidlRT.targets')" />
   <Import Project="..\..\packages\Microsoft.Windows.AbiWinRT.2.0.210330.2\build\native\Microsoft.Windows.AbiWinRT.targets" Condition="Exists('..\..\packages\Microsoft.Windows.AbiWinRT.2.0.210330.2\build\native\Microsoft.Windows.AbiWinRT.targets')" />
   <Import Project="$(WindowsAppSdk_targets)" Condition="Exists('$(WindowsAppSdk_targets)')" />
   <Import Project="$(MSBuildThisFileDirectory)..\..\build\midlrt.targets" />
-  <Import Project="..\..\packages\Microsoft.Web.WebView2.1.0.2792.45\build\native\Microsoft.Web.WebView2.targets" Condition="Exists('..\..\packages\Microsoft.Web.WebView2.1.0.2792.45\build\native\Microsoft.Web.WebView2.targets')" />
 </Project>
\ No newline at end of file
diff --git a/winrt/projection/winrt.projection.csproj b/winrt/projection/winrt.projection.csproj
index 4157b1a31..685800810 100644
--- a/winrt/projection/winrt.projection.csproj
+++ b/winrt/projection/winrt.projection.csproj
@@ -50,9 +50,8 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.Web.WebView2" Version="1.0.2792.45" />
-    <PackageReference Include="Microsoft.WindowsAppSdk" Version="$(WindowsAppSdkVersion)" />
-    <PackageReference Include="Microsoft.Windows.CSWinRT" Version="2.1.6" />
+    <PackageReference Include="Microsoft.WindowsAppSDK.WinUI" Version="$(WindowsAppSdkVersion)" />
+    <PackageReference Include="Microsoft.Windows.CSWinRT" Version="$(CsWinRTVersion)" />
     <PackageReference Include="Microsoft.SourceLink.AzureRepos.Git" Version="1.1.1" PrivateAssets="All" />
   </ItemGroup>
 </Project>
diff --git a/winrt/test.external/packages.config b/winrt/test.external/packages.config
index 535161157..216b1c07a 100644
--- a/winrt/test.external/packages.config
+++ b/winrt/test.external/packages.config
@@ -1,4 +1,4 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="Microsoft.WindowsAppSdk" version="1.6.241114003" targetFramework="native" />
+  <package id="Microsoft.WindowsAppSdk.WinUI" version="1.8.260204000" targetFramework="native" />
 </packages>
\ No newline at end of file
diff --git a/winrt/test.internal/packages.config b/winrt/test.internal/packages.config
index d4eb0ffa2..9b81d2418 100644
--- a/winrt/test.internal/packages.config
+++ b/winrt/test.internal/packages.config
@@ -1,7 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="Microsoft.Web.WebView2" version="1.0.2792.45" targetFramework="native" />
   <package id="Microsoft.Windows.AbiWinRT" version="2.0.210330.2" targetFramework="native" />
   <package id="Microsoft.Windows.MidlRT" version="2.0.200924.1" targetFramework="native" />
-  <package id="Microsoft.WindowsAppSdk" version="1.6.241114003" targetFramework="native" />
+  <package id="Microsoft.WindowsAppSDK.WinUI" version="1.8.260204000" targetFramework="native" />
 </packages>
\ No newline at end of file
diff --git a/winrt/test.internal/winrt.test.internal.uap.vcxproj b/winrt/test.internal/winrt.test.internal.uap.vcxproj
index 34015ccf5..f0a4577b6 100644
--- a/winrt/test.internal/winrt.test.internal.uap.vcxproj
+++ b/winrt/test.internal/winrt.test.internal.uap.vcxproj
@@ -291,7 +291,6 @@
     <Error Condition="!Exists('..\..\packages\Microsoft.Windows.MidlRT.2.0.200924.1\build\native\Microsoft.Windows.MidlRT.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\..\packages\Microsoft.Windows.MidlRT.2.0.200924.1\build\native\Microsoft.Windows.MidlRT.targets'))" />
     <Error Condition="!Exists('$(WindowsAppSdk_props)')" Text="$([System.String]::Format('$(ErrorText)', '$(WindowsAppSdk_props)'))" />
     <Error Condition="!Exists('$(WindowsAppSdk_targets)')" Text="$([System.String]::Format('$(ErrorText)', '$(WindowsAppSdk_targets)'))" />
-    <Error Condition="!Exists('..\..\packages\Microsoft.Web.WebView2.1.0.2792.45\build\native\Microsoft.Web.WebView2.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\..\packages\Microsoft.Web.WebView2.1.0.2792.45\build\native\Microsoft.Web.WebView2.targets'))" />
   </Target>
   <Import Project="..\..\packages\Microsoft.Windows.AbiWinRT.2.0.210330.2\build\native\Microsoft.Windows.AbiWinRT.targets" Condition="Exists('..\..\packages\Microsoft.Windows.AbiWinRT.2.0.210330.2\build\native\Microsoft.Windows.AbiWinRT.targets')" />
   <Import Project="..\..\packages\Microsoft.Windows.MidlRT.2.0.200924.1\build\native\Microsoft.Windows.MidlRT.targets" Condition="Exists('..\..\packages\Microsoft.Windows.MidlRT.2.0.200924.1\build\native\Microsoft.Windows.MidlRT.targets')" />
@@ -309,5 +308,4 @@
     </ClCompile>
   </ItemDefinitionGroup>
   <Import Project="$(WindowsAppSdk_targets)" Condition="Exists('$(WindowsAppSdk_targets)')" />
-  <Import Project="..\..\packages\Microsoft.Web.WebView2.1.0.2792.45\build\native\Microsoft.Web.WebView2.targets" Condition="Exists('..\..\packages\Microsoft.Web.WebView2.1.0.2792.45\build\native\Microsoft.Web.WebView2.targets')" />
 </Project>
\ No newline at end of file
diff --git a/winrt/test.managed/winrt.test.managed.winappsdk.csproj b/winrt/test.managed/winrt.test.managed.winappsdk.csproj
index 11e135802..739631422 100644
--- a/winrt/test.managed/winrt.test.managed.winappsdk.csproj
+++ b/winrt/test.managed/winrt.test.managed.winappsdk.csproj
@@ -35,10 +35,9 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.Web.WebView2" Version="1.0.2792.45" />
-    <PackageReference Include="Microsoft.Windows.CsWinRT" Version="2.1.6" />
-    <PackageReference Include="Microsoft.WindowsAppSDK" Version="$(WindowsAppSdkVersion)" />
-    <PackageReference Include="Microsoft.Windows.SDK.BuildTools" Version="10.0.22621.756" />
+    <PackageReference Include="Microsoft.Windows.CsWinRT" Version="$(CsWinRTVersion)" />
+    <PackageReference Include="Microsoft.WindowsAppSDK.WinUI" Version="$(WindowsAppSdkVersion)" />
+    <PackageReference Include="Microsoft.Windows.SDK.BuildTools" Version="10.0.28000.1-RTM" />
     <PackageReference Include="MSTest.TestAdapter">
       <Version>3.0.2</Version>
     </PackageReference>
diff --git a/winrt/test.nativecomponent.projection/winrt.test.nativecomponent.projection.csproj b/winrt/test.nativecomponent.projection/winrt.test.nativecomponent.projection.csproj
index 190765410..52458328d 100644
--- a/winrt/test.nativecomponent.projection/winrt.test.nativecomponent.projection.csproj
+++ b/winrt/test.nativecomponent.projection/winrt.test.nativecomponent.projection.csproj
@@ -17,10 +17,9 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.Web.WebView2" Version="1.0.2792.45" />
-    <PackageReference Include="Microsoft.Windows.CsWinRT" Version="2.1.6" />
-    <PackageReference Include="Microsoft.WindowsAppSDK" Version="$(WindowsAppSdkVersion)" />
-    <PackageReference Include="Microsoft.Windows.SDK.BuildTools" Version="10.0.22621.756" />
+    <PackageReference Include="Microsoft.Windows.CsWinRT" Version="$(CsWinRTVersion)" />
+    <PackageReference Include="Microsoft.WindowsAppSDK.WinUI" Version="$(WindowsAppSdkVersion)" />
+    <PackageReference Include="Microsoft.Windows.SDK.BuildTools" Version="10.0.28000.1-RTM" />
   </ItemGroup>
 
   <ItemGroup>
diff --git a/winrt/test.nativecomponent/packages.config b/winrt/test.nativecomponent/packages.config
index d4eb0ffa2..9b81d2418 100644
--- a/winrt/test.nativecomponent/packages.config
+++ b/winrt/test.nativecomponent/packages.config
@@ -1,7 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="Microsoft.Web.WebView2" version="1.0.2792.45" targetFramework="native" />
   <package id="Microsoft.Windows.AbiWinRT" version="2.0.210330.2" targetFramework="native" />
   <package id="Microsoft.Windows.MidlRT" version="2.0.200924.1" targetFramework="native" />
-  <package id="Microsoft.WindowsAppSdk" version="1.6.241114003" targetFramework="native" />
+  <package id="Microsoft.WindowsAppSDK.WinUI" version="1.8.260204000" targetFramework="native" />
 </packages>
\ No newline at end of file
diff --git a/winrt/test.nativecomponent/winrt.test.nativecomponent.uap.vcxproj b/winrt/test.nativecomponent/winrt.test.nativecomponent.uap.vcxproj
index 1a5c55872..39dd22a0a 100644
--- a/winrt/test.nativecomponent/winrt.test.nativecomponent.uap.vcxproj
+++ b/winrt/test.nativecomponent/winrt.test.nativecomponent.uap.vcxproj
@@ -87,10 +87,8 @@
     <Error Condition="!Exists('..\..\packages\Microsoft.Windows.MidlRT.2.0.200924.1\build\native\Microsoft.Windows.MidlRT.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\..\packages\Microsoft.Windows.MidlRT.2.0.200924.1\build\native\Microsoft.Windows.MidlRT.targets'))" />
     <Error Condition="!Exists('$(WindowsAppSdk_props)')" Text="$([System.String]::Format('$(ErrorText)', '$(WindowsAppSdk_props)'))" />
     <Error Condition="!Exists('$(WindowsAppSdk_targets)')" Text="$([System.String]::Format('$(ErrorText)', '$(WindowsAppSdk_targets)'))" />
-    <Error Condition="!Exists('..\..\packages\Microsoft.Web.WebView2.1.0.2792.45\build\native\Microsoft.Web.WebView2.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\..\packages\Microsoft.Web.WebView2.1.0.2792.45\build\native\Microsoft.Web.WebView2.targets'))" />
   </Target>
   <Import Project="..\..\packages\Microsoft.Windows.AbiWinRT.2.0.210330.2\build\native\Microsoft.Windows.AbiWinRT.targets" Condition="Exists('..\..\packages\Microsoft.Windows.AbiWinRT.2.0.210330.2\build\native\Microsoft.Windows.AbiWinRT.targets')" />
   <Import Project="..\..\packages\Microsoft.Windows.MidlRT.2.0.200924.1\build\native\Microsoft.Windows.MidlRT.targets" Condition="Exists('..\..\packages\Microsoft.Windows.MidlRT.2.0.200924.1\build\native\Microsoft.Windows.MidlRT.targets')" />
   <Import Project="$(WindowsAppSdk_targets)" Condition="Exists('$(WindowsAppSdk_targets)')" />
-  <Import Project="..\..\packages\Microsoft.Web.WebView2.1.0.2792.45\build\native\Microsoft.Web.WebView2.targets" Condition="Exists('..\..\packages\Microsoft.Web.WebView2.1.0.2792.45\build\native\Microsoft.Web.WebView2.targets')" />
 </Project>
\ No newline at end of file