Add support for CsWinRT 3.0 multi-targeting via Windows SDK build number

eng/ManualVersions.props

@@ -9,6 +9,17 @@
   Basically: In this file, choose the highest version when resolving merge conflicts.
  -->
   <PropertyGroup>
+
+    <!-- CsWinRT 3.0 targeting packs -->
+    <MicrosoftWindowsSDKNETRef10_0_17763_1PackageVersion>10.0.17763.57</MicrosoftWindowsSDKNETRef10_0_17763_1PackageVersion>
+    <MicrosoftWindowsSDKNETRef10_0_18362_1PackageVersion>10.0.18362.57</MicrosoftWindowsSDKNETRef10_0_18362_1PackageVersion>
+    <MicrosoftWindowsSDKNETRef10_0_19041_1PackageVersion>10.0.19041.57</MicrosoftWindowsSDKNETRef10_0_19041_1PackageVersion>
+    <MicrosoftWindowsSDKNETRef10_0_20348_1PackageVersion>10.0.20348.57</MicrosoftWindowsSDKNETRef10_0_20348_1PackageVersion>
+    <MicrosoftWindowsSDKNETRef10_0_22000_1PackageVersion>10.0.22000.57</MicrosoftWindowsSDKNETRef10_0_22000_1PackageVersion>
+    <MicrosoftWindowsSDKNETRef10_0_22621_1PackageVersion>10.0.22621.57</MicrosoftWindowsSDKNETRef10_0_22621_1PackageVersion>
+    <MicrosoftWindowsSDKNETRef10_0_26100_1PackageVersion>10.0.26100.57</MicrosoftWindowsSDKNETRef10_0_26100_1PackageVersion>
+
+    <!-- CsWinRT 2.x targeting packs-->
     <MicrosoftWindowsSDKNETRef10_0_17763PackageVersion>10.0.17763.57</MicrosoftWindowsSDKNETRef10_0_17763PackageVersion>
     <MicrosoftWindowsSDKNETRef10_0_18362PackageVersion>10.0.18362.57</MicrosoftWindowsSDKNETRef10_0_18362PackageVersion>
     <MicrosoftWindowsSDKNETRef10_0_19041PackageVersion>10.0.19041.57</MicrosoftWindowsSDKNETRef10_0_19041PackageVersion>

src/Layout/redist/targets/GenerateBundledVersions.targets

@@ -1314,8 +1314,21 @@ Copyright (c) .NET Foundation. All rights reserved.
                               TargetingPackName="NETStandard.Library.Ref"
                               TargetingPackVersion="$(NETStandardLibraryRefPackageVersion)"
                               />
-
-    <!-- Supported Windows versions -->
+
+    <!--
+      Supported Windows versions using CsWinRT 3.0 (.NET 10 is the baseline). This leverages the patch version of
+      the Windows SDK version to allow multi-targeting, which is required to allow customers to gradually migrate.
+      Both CsWinRT 3.0 and 2.x will be supported for a period of time, and packages can target both of them.
+    -->
+    <WindowsSdkSupportedTargetPlatformVersion Include="10.0.26100.1" WindowsSdkPackageVersion="$(MicrosoftWindowsSDKNETRef10_0_26100_1PackageVersion)" MinimumNETVersion="10.0" />
+    <WindowsSdkSupportedTargetPlatformVersion Include="10.0.22621.1" WindowsSdkPackageVersion="$(MicrosoftWindowsSDKNETRef10_0_22621_1PackageVersion)" MinimumNETVersion="10.0" />
+    <WindowsSdkSupportedTargetPlatformVersion Include="10.0.22000.1" WindowsSdkPackageVersion="$(MicrosoftWindowsSDKNETRef10_0_22000_1PackageVersion)" MinimumNETVersion="10.0" />
+    <WindowsSdkSupportedTargetPlatformVersion Include="10.0.20348.1" WindowsSdkPackageVersion="$(MicrosoftWindowsSDKNETRef10_0_20348_1PackageVersion)" MinimumNETVersion="10.0" />
+    <WindowsSdkSupportedTargetPlatformVersion Include="10.0.19041.1" WindowsSdkPackageVersion="$(MicrosoftWindowsSDKNETRef10_0_19041_1PackageVersion)" MinimumNETVersion="10.0" />
+    <WindowsSdkSupportedTargetPlatformVersion Include="10.0.18362.1" WindowsSdkPackageVersion="$(MicrosoftWindowsSDKNETRef10_0_18362_1PackageVersion)" MinimumNETVersion="10.0" />
+    <WindowsSdkSupportedTargetPlatformVersion Include="10.0.17763.1" WindowsSdkPackageVersion="$(MicrosoftWindowsSDKNETRef10_0_17763_1PackageVersion)" MinimumNETVersion="10.0" />
+
+    <!-- Supported Windows versions using CsWinRT 2.x -->
     <WindowsSdkSupportedTargetPlatformVersion Include="10.0.26100.0" WindowsSdkPackageVersion="$(MicrosoftWindowsSDKNETRef10_0_26100PackageVersion)" MinimumNETVersion="8.0" />
     <WindowsSdkSupportedTargetPlatformVersion Include="10.0.22621.0" WindowsSdkPackageVersion="$(MicrosoftWindowsSDKNETRef10_0_22621PackageVersion)" MinimumNETVersion="8.0" />
     <WindowsSdkSupportedTargetPlatformVersion Include="10.0.22000.0" WindowsSdkPackageVersion="$(MicrosoftWindowsSDKNETRef10_0_22000PackageVersion)" MinimumNETVersion="8.0" />

src/Tasks/Common/Resources/Strings.resx

@@ -875,7 +875,6 @@ You may need to build the project on another operating system or architecture, o
   <data name="SolutionProjectConfigurationsConflict" xml:space="preserve">
     <value>NETSDK1197: Multiple solution project(s) contain conflicting '{0}' values; ensure the values match. Consider using a Directory.build.props file to set the property for all projects. Conflicting projects:
 {1}</value>
-  <comment>{StrBegins="NETSDK1197: "}</comment>
   </data>
   <data name="PublishProfileNotPresent" xml:space="preserve">
     <value>NETSDK1198: A publish profile with the name '{0}' was not found in the project. Set the PublishProfile property to a valid file name.</value>
@@ -995,4 +994,8 @@ You may need to build the project on another operating system or architecture, o
     <value>NETSDK1228: This project depends on the Aspire Workload which has been deprecated. Aspire now ships via NuGet packages and no longer requires a workload. Please visit {0} for upgrade guidance.</value>
     <comment>{StrBegins="NETSDK1228: "}</comment>
   </data>
-</root>
+  <data name="UsingPreviewCsWinRT3_0Feature" xml:space="preserve">
+    <value>NETSDK1229: Targeting a Windows SDK version with '1' as the revision number will reference CsWinRT 3.0, which is currently in preview. The current project is targeting the Windows SDK version '{0}'. If this is not intended, change the revision number to '0' to use CsWinRT 2.x instead.</value>
+    <comment>{StrBegins="NETSDK1229: "}</comment>
+  </data>
+</root>