diff --git a/eng/packaging.targets b/eng/packaging.targets
index ea2f143ec498d..a36102a37acd5 100644
--- a/eng/packaging.targets
+++ b/eng/packaging.targets
@@ -274,9 +274,10 @@
   <Target Name="AddBuildOutputToToolsPackage">
     <ItemGroup>
       <!-- Include build outputs in the package under tools directory. -->
-      <TfmSpecificPackageFile Include="$(OutputPath)**"
-                              Exclude="$(OutputPath)publish\**;
-                                       $(OutputPath)"
+      <_BuildOutputPackageFile Include="$(OutputPath)**"
+                               Exclude="$(OutputPath)publish\**;
+                                        $(OutputPath)" />
+      <TfmSpecificPackageFile Include="@(_BuildOutputPackageFile)"
                               PackagePath="tools/$(TargetFramework)/%(RecursiveDir)%(FileName)%(Extension)" />
       <TfmSpecificDebugSymbolsFile Include="@(TfmSpecificPackageFile->WithMetadataValue('Extension', '.pdb'))"
                                    TargetPath="/%(TfmSpecificPackageFile.PackagePath)/%(Filename)%(Extension)"
diff --git a/eng/testing/linker/SupportFiles/Directory.Build.props b/eng/testing/linker/SupportFiles/Directory.Build.props
index 546b2ee884263..5a54c83e56923 100644
--- a/eng/testing/linker/SupportFiles/Directory.Build.props
+++ b/eng/testing/linker/SupportFiles/Directory.Build.props
@@ -1,13 +1,4 @@
 <Project>
-
-  <!-- Use live illink bits. It is necessary to both import the package props and override
-       the tasks assembly, because the live package props in the build output do not use
-       the same layout as the NuGet package. -->
-  <Import Project="$(ToolsILLinkDir)$(NetCoreAppToolCurrent)/build/Microsoft.NET.ILLink.Tasks.props" />
-  <PropertyGroup>
-    <ILLinkTasksAssembly>$(ToolsILLinkDir)$(NetCoreAppToolCurrent)/ILLink.Tasks.dll</ILLinkTasksAssembly>
-  </PropertyGroup>
-
   <PropertyGroup>
     <SkipConfigureTrimming>true</SkipConfigureTrimming>
     <PublishTrimmed>true</PublishTrimmed>
diff --git a/eng/testing/linker/project.csproj.template b/eng/testing/linker/project.csproj.template
index bec1429a03f3d..3916d05f77086 100644
--- a/eng/testing/linker/project.csproj.template
+++ b/eng/testing/linker/project.csproj.template
@@ -1,4 +1,4 @@
-<Project>
+<Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
     <!-- Needed for PublishTrimmed -->
@@ -6,7 +6,15 @@
     <ToolsILLinkDir>{ToolsILLinkDir}</ToolsILLinkDir>
   </PropertyGroup>
 
-  <Import Project="Sdk.props" Sdk="Microsoft.NET.Sdk" />
+  <!-- Use live illink bits. It is necessary to both import the package props and override
+       the tasks assembly, because the live package props in the build output do not use
+       the same layout as the NuGet package. -->
+  <!-- This must be done after the usual nuget props imports, to override the implicitly referenced
+       Microsoft.NET.ILLink.Tasks.props from the SDK. -->
+  <Import Project="$(ToolsILLinkDir)$(NetCoreAppToolCurrent)/build/Microsoft.NET.ILLink.Tasks.props" />
+  <PropertyGroup>
+    <ILLinkTasksAssembly>$(ToolsILLinkDir)$(NetCoreAppToolCurrent)/ILLink.Tasks.dll</ILLinkTasksAssembly>
+  </PropertyGroup>
 
   <PropertyGroup>
     <TargetFramework>{TargetFramework}</TargetFramework>
@@ -84,6 +92,4 @@
 
   <Import Project="{NativeSanitizersTargets}" />
 
-  <Import Project="Sdk.targets" Sdk="Microsoft.NET.Sdk" />
-
 </Project>
diff --git a/src/tools/illink/src/ILLink.Tasks/ILLink.Tasks.csproj b/src/tools/illink/src/ILLink.Tasks/ILLink.Tasks.csproj
index 9cd6c8810b661..1199101f63825 100644
--- a/src/tools/illink/src/ILLink.Tasks/ILLink.Tasks.csproj
+++ b/src/tools/illink/src/ILLink.Tasks/ILLink.Tasks.csproj
@@ -26,6 +26,20 @@
     <EnableSingleFileAnalyzer>false</EnableSingleFileAnalyzer>
   </PropertyGroup>
 
+  <!-- Include the illink.runtimeconfig.pack.json file (which depends on the runtimeversion being built)
+       as illink.runtimeconfig.json in the package, instead of the original illink.runtimeconfig.json. -->
+  <Target Name="FixPackageRuntimeConfigPath"
+          AfterTargets="AddBuildOutputToToolsPackage"
+          Condition="'$(TargetFramework)' == '$(NetCoreAppToolCurrent)'">
+    <ItemGroup>
+      <TfmSpecificPackageFile Remove="@(TfmSpecificPackageFile)"
+                              Condition="$([System.String]::Copy('%(Identity)').EndsWith('.runtimeconfig.json'))" />
+      <TfmSpecificPackageFile
+        Condition="$([System.String]::Copy('%(TfmSpecificPackageFile.PackagePath)').EndsWith('.pack.json'))"
+        PackagePath="$([System.String]::Copy(%(TfmSpecificPackageFile.PackagePath)).Substring(0, $([MSBuild]::Subtract($([System.String]::Copy('%(TfmSpecificPackageFile.PackagePath)').Length), 10)))).json" />
+    </ItemGroup>
+  </Target>
+
   <ItemGroup>
     <!-- Note: 'build/Microsoft.NET.ILLink.targets' should not match the package name, because we don't want the targets
          to be imported by nuget. The SDK will import them in the right order. -->
diff --git a/src/tools/illink/src/linker/Mono.Linker.csproj b/src/tools/illink/src/linker/Mono.Linker.csproj
index 16e5cf9b988b2..e5cdbb86c5eb7 100644
--- a/src/tools/illink/src/linker/Mono.Linker.csproj
+++ b/src/tools/illink/src/linker/Mono.Linker.csproj
@@ -24,6 +24,43 @@
     <DefineConstants>$(DefineConstants);ILLINK</DefineConstants>
   </PropertyGroup>
 
+  <Target Name="_ComputePackRuntimeConfigFilePath">
+    <PropertyGroup>
+      <PackRuntimeConfigFilePath>$([System.IO.Path]::ChangeExtension($(ProjectRuntimeConfigFilePath), pack.json))</PackRuntimeConfigFilePath>
+    </PropertyGroup>
+  </Target>
+
+  <!-- Generate a runtimeconfig.pack.json file that has the runtime version replaced by version of dotnet/runtime being built.
+       This will be the version used by the ILLink.Tasks package. -->
+  <Target Name="GeneratePackageRuntimeConfig" AfterTargets="GenerateBuildRuntimeConfigurationFiles"
+          DependsOnTargets="_ComputePackRuntimeConfigFilePath"
+          Condition="'$(TargetFramework)' == '$(NetCoreAppToolCurrent)'">
+    <PropertyGroup>
+      <_RuntimeConfigContents>$([System.IO.File]::ReadAllText('$(ProjectRuntimeConfigFilePath)'))</_RuntimeConfigContents>
+      <ReplacementPattern>"version": ".*"</ReplacementPattern>
+      <ReplacementString>"version": "$(Version)"</ReplacementString>
+      <_NewRuntimeConfigContents>$([System.Text.RegularExpressions.Regex]::Replace($(_RuntimeConfigContents), $(ReplacementPattern), $(ReplacementString)))</_NewRuntimeConfigContents>
+    </PropertyGroup>
+
+    <WriteLinesToFile File="$(PackRuntimeConfigFilePath)"
+                      Lines="$(_NewRuntimeConfigContents)"
+                      Overwrite="true"
+                      WriteOnlyWhenDifferent="true" />
+  </Target>
+
+  <!-- Ensure that the pack.json file flows to ILLink.Tasks so that it can be included in the package.
+       The original runtimeconfig.json file (included by default) is also needed so that projects which use
+       the ILLink.Tasks build output can run illink using the LKG SDK. -->
+  <Target Name="AddPackageRuntimeConfigToCopyItemsForReferencingProjects"
+          DependsOnTargets="_ComputePackRuntimeConfigFilePath"
+          AfterTargets="AddDepsJsonAndRuntimeConfigToCopyItemsForReferencingProjects">
+    <ItemGroup>
+      <AllItemsFullPathWithTargetPath Include="$(PackRuntimeConfigFilePath)"
+                                      TargetPath="$([System.IO.Path]::GetFileName($(PackRuntimeConfigFilePath)))"
+                                      CopyToOutputDirectory="PreserveNewest" />
+    </ItemGroup>
+  </Target>
+
   <!-- The default pack logic will include the implementation assembly in lib.
        This also adds the reference assembly under ref. -->
   <Target Name="_AddReferenceAssemblyToPackage" DependsOnTargets="ResolveProjectReferences">