Move to building with the 9.0 SDK and move our ToolCurrent TFM to 9.0

Directory.Build.props

@@ -99,11 +99,11 @@
     <!-- when this is updated, make sure to keep $(_TargetFrameworkForNETCoreTasks)
          in src/mono/wasm/build/WasmApp.LocalBuild.props
          and in src/mono/msbuild/apple/build/AppleBuild.LocalBuild.props in sync -->
-    <NetCoreAppToolCurrentVersion>8.0</NetCoreAppToolCurrentVersion>
+    <NetCoreAppToolCurrentVersion>9.0</NetCoreAppToolCurrentVersion>
     <NetCoreAppToolCurrent>net$(NetCoreAppToolCurrentVersion)</NetCoreAppToolCurrent>
     <NetCoreAppCurrentToolTargetFrameworkMoniker>$(NetCoreAppCurrentIdentifier),Version=v$(NetCoreAppToolCurrentVersion)</NetCoreAppCurrentToolTargetFrameworkMoniker>
 
-    <AspNetCoreAppCurrentVersion>8.0</AspNetCoreAppCurrentVersion>
+    <AspNetCoreAppCurrentVersion>9.0</AspNetCoreAppCurrentVersion>
     <AspNetCoreAppCurrent>net$(AspNetCoreAppCurrentVersion)</AspNetCoreAppCurrent>
 
     <NetFrameworkMinimum>net462</NetFrameworkMinimum>

eng/SourceBuildPrebuiltBaseline.xml

@@ -10,12 +10,12 @@
     <UsagePattern IdentityGlob="Microsoft.CodeAnalysis*/*4.7.*" />
 
     <!-- Allowed and pinned to major version due to https://github.com/dotnet/source-build/issues/3228 -->
-    <UsagePattern IdentityGlob="Microsoft.NETCore.App.Crossgen2.linux-x64/*8.*" />
-    <UsagePattern IdentityGlob="Microsoft.NETCore.App.Runtime.linux-x64/*8.*" />
-    <UsagePattern IdentityGlob="*Microsoft.DotNet.ILCompiler/*8.*" />
+    <UsagePattern IdentityGlob="Microsoft.NETCore.App.Crossgen2.linux-x64/*9.*" />
+    <UsagePattern IdentityGlob="Microsoft.NETCore.App.Runtime.linux-x64/*9.*" />
+    <UsagePattern IdentityGlob="*Microsoft.DotNet.ILCompiler/*9.*" />
 
     <!-- Allowed and pinned to SDK version -->
-    <UsagePattern IdentityGlob="Microsoft.NET.ILLink.Tasks/*8.*" />
+    <UsagePattern IdentityGlob="Microsoft.NET.ILLink.Tasks/*9.*" />
 
     <!-- This version is brought in transitively from NuGet.Packaging.6.2.4.
          Once a newer version of NuGet.Packaging is referenced which has a

eng/Version.Details.xml

@@ -353,9 +353,9 @@
       <Uri>https://dev.azure.com/dnceng/internal/_git/dotnet-optimization</Uri>
       <Sha>fb325047175ea6436e3c2c88f6f56505e0e834c2</Sha>
     </Dependency>
-    <Dependency Name="Microsoft.DotNet.HotReload.Utils.Generator.BuildTool" Version="9.0.0-alpha.0.23611.1">
+    <Dependency Name="Microsoft.DotNet.HotReload.Utils.Generator.BuildTool" Version="9.0.0-alpha.0.23618.4">
       <Uri>https://github.com/dotnet/hotreload-utils</Uri>
-      <Sha>cc369887e92bac086dd296beb7cd169b6cff9716</Sha>
+      <Sha>14a6f0b652e5d1053b5213adfcdfe1aaa6d52d6d</Sha>
     </Dependency>
     <Dependency Name="System.Runtime.Numerics.TestData" Version="9.0.0-beta.23615.1">
       <Uri>https://github.com/dotnet/runtime-assets</Uri>

eng/Versions.props

@@ -182,7 +182,7 @@
     <MicrosoftDotNetXHarnessTestRunnersCommonVersion>9.0.0-prerelease.23611.1</MicrosoftDotNetXHarnessTestRunnersCommonVersion>
     <MicrosoftDotNetXHarnessTestRunnersXunitVersion>9.0.0-prerelease.23611.1</MicrosoftDotNetXHarnessTestRunnersXunitVersion>
     <MicrosoftDotNetXHarnessCLIVersion>9.0.0-prerelease.23611.1</MicrosoftDotNetXHarnessCLIVersion>
-    <MicrosoftDotNetHotReloadUtilsGeneratorBuildToolVersion>9.0.0-alpha.0.23611.1</MicrosoftDotNetHotReloadUtilsGeneratorBuildToolVersion>
+    <MicrosoftDotNetHotReloadUtilsGeneratorBuildToolVersion>9.0.0-alpha.0.23618.4</MicrosoftDotNetHotReloadUtilsGeneratorBuildToolVersion>
     <NUnitVersion>3.12.0</NUnitVersion>
     <NUnitTestAdapterVersion>4.1.0</NUnitTestAdapterVersion>
     <CoverletCollectorVersion>6.0.0</CoverletCollectorVersion>

global.json

@@ -1,11 +1,11 @@
 {
   "sdk": {
-    "version": "8.0.100",
+    "version": "9.0.100-alpha.1.23615.4",
     "allowPrerelease": true,
     "rollForward": "major"
   },
   "tools": {
-    "dotnet": "8.0.100"
+    "dotnet": "9.0.100-alpha.1.23615.4"
   },
   "msbuild-sdks": {
     "Microsoft.DotNet.Arcade.Sdk": "9.0.0-beta.23607.2",

src/installer/tests/Assets/TestUtils/TestProjects.targets

@@ -4,29 +4,4 @@
     provides basic info needed for restore and build with the vanilla SDK.
   -->
 
-  <!-- TODO: Remove when the SDK understands the net9.0 tfm. -->
-  <PropertyGroup>
-    <NETCoreAppMaximumVersion>9.0</NETCoreAppMaximumVersion>
-  </PropertyGroup>
-
-  <ItemGroup>
-    <KnownFrameworkReference Include="Microsoft.NETCore.App"
-                             DefaultRuntimeFrameworkVersion="9.0.0-alpha.1.23615.3"
-                             LatestRuntimeFrameworkVersion="9.0.0-alpha.1.23615.3"
-                             RuntimeFrameworkName="Microsoft.NETCore.App"
-                             RuntimePackNamePatterns="Microsoft.NETCore.App.Runtime.**RID**"
-                             RuntimePackRuntimeIdentifiers="linux-arm;linux-arm64;linux-musl-arm64;linux-musl-x64;linux-x64;osx-x64;rhel.6-x64;tizen.4.0.0-armel;tizen.5.0.0-armel;win-arm64;win-x64;win-x86;linux-musl-arm;osx-arm64;maccatalyst-x64;maccatalyst-arm64;linux-s390x;linux-bionic-arm;linux-bionic-arm64;linux-bionic-x64;linux-bionic-x86"
-                             TargetFramework="$(NetCoreAppCurrent)"
-                             TargetingPackName="Microsoft.NETCore.App.Ref"
-                             TargetingPackVersion="9.0.0-alpha.1.23615.3"
-                             Condition="'@(KnownFrameworkReference)' == '' or !@(KnownFrameworkReference->AnyHaveMetadataValue('TargetFramework', '$(NetCoreAppCurrent)'))" />
-
-    <KnownAppHostPack Include="Microsoft.NETCore.App"
-                      ExcludedRuntimeIdentifiers="android"
-                      AppHostPackNamePattern="Microsoft.NETCore.App.Host.**RID**"
-                      AppHostPackVersion="9.0.0-alpha.1.23615.3"
-                      AppHostRuntimeIdentifiers="linux-arm;linux-arm64;linux-musl-arm64;linux-musl-x64;linux-x64;osx-x64;rhel.6-x64;tizen.4.0.0-armel;tizen.5.0.0-armel;win-arm64;win-x64;win-x86;linux-musl-arm;osx-arm64;linux-s390x;linux-bionic-arm;linux-bionic-arm64;linux-bionic-x64;linux-bionic-x86"
-                      TargetFramework="$(NetCoreAppCurrent)"
-                      Condition="'@(KnownAppHostPack)' == '' or !@(KnownAppHostPack->AnyHaveMetadataValue('TargetFramework', '$(NetCoreAppCurrent)'))" />
-  </ItemGroup>
 </Project>

src/mono/msbuild/apple/build/AppleBuild.LocalBuild.props

@@ -24,7 +24,7 @@
     <!-- Keep these underscored targets in sync with the root Directory.Build.props -->
     <_NetCoreAppCurrent>net9.0</_NetCoreAppCurrent>
     <TargetFramework>$(_NetCoreAppCurrent)</TargetFramework>
-    <_NetCoreAppToolCurrent>net8.0</_NetCoreAppToolCurrent>
+    <_NetCoreAppToolCurrent>net9.0</_NetCoreAppToolCurrent>
     <MSBuildEnableWorkloadResolver>false</MSBuildEnableWorkloadResolver>
   </PropertyGroup>
 

src/mono/wasm/build/WasmApp.LocalBuild.props

@@ -22,7 +22,7 @@
   <Import Project="$(_WasmTargetsDir)$(_TargetsBaseName).props" />
 
   <PropertyGroup>
-    <_TargetFrameworkForNETCoreTasks>net8.0</_TargetFrameworkForNETCoreTasks>
+    <_TargetFrameworkForNETCoreTasks>net9.0</_TargetFrameworkForNETCoreTasks>
     <MSBuildEnableWorkloadResolver>false</MSBuildEnableWorkloadResolver>
     <SelfContained>true</SelfContained>
   </PropertyGroup>

src/tools/illink/src/ILLink.Tasks/LinkTask.cs

@@ -262,7 +262,7 @@ public string ILLinkPath {
 				var taskDirectory = Path.GetDirectoryName (Assembly.GetExecutingAssembly ().Location);
 #pragma warning restore IL3000 // Avoid accessing Assembly file path when publishing as a single file
 				// IL Linker always runs on .NET Core, even when using desktop MSBuild to host ILLink.Tasks.
-				_illinkPath = Path.Combine (Path.GetDirectoryName (taskDirectory), "net8.0", "illink.dll");
+				_illinkPath = Path.Combine (Path.GetDirectoryName (taskDirectory), "net9.0", "illink.dll");
 				return _illinkPath;
 			}
 			set => _illinkPath = value;

src/tools/illink/src/ILLink.Tasks/build/Microsoft.NET.ILLink.Tasks.props

@@ -15,10 +15,10 @@ Copyright (c) .NET Foundation. All rights reserved.
     <!-- N.B. The ILLinkTargetsPath is used as a sentinel to indicate a version of this file has already been imported. It will also be the path
          used to import the targets later in the SDK. -->
     <ILLinkTargetsPath Condition="'$(ILLinkTargetsPath)' == ''">$(MSBuildThisFileDirectory)Microsoft.NET.ILLink.targets</ILLinkTargetsPath>
-    <!-- Older SDKs used this property as a sentinel instead, to control the import of this file 
+    <!-- Older SDKs used this property as a sentinel instead, to control the import of this file
          (but not the targets, which were included with the SDK). -->
     <UsingILLinkTasksSdk>true</UsingILLinkTasksSdk>
-    <ILLinkTasksAssembly Condition="'$(MSBuildRuntimeType)' == 'Core'">$(MSBuildThisFileDirectory)..\tools\net8.0\ILLink.Tasks.dll</ILLinkTasksAssembly>
+    <ILLinkTasksAssembly Condition="'$(MSBuildRuntimeType)' == 'Core'">$(MSBuildThisFileDirectory)..\tools\net9.0\ILLink.Tasks.dll</ILLinkTasksAssembly>
     <ILLinkTasksAssembly Condition="'$(MSBuildRuntimeType)' != 'Core'">$(MSBuildThisFileDirectory)..\tools\net472\ILLink.Tasks.dll</ILLinkTasksAssembly>
 
     <ILLinkAnalyzersPropsPath Condition="'$(ILLinkAnalyzersPropsPath)' == ''">$(MSBuildThisFileDirectory)Microsoft.NET.ILLink.Analyzers.props</ILLinkAnalyzersPropsPath>