diff --git a/src/IISIntegration/benchmarks/IIS.Performance/IIS.Performance.csproj b/src/IISIntegration/benchmarks/IIS.Performance/IIS.Performance.csproj
index 6373cfdfa728..6b1fecc0bbc5 100644
--- a/src/IISIntegration/benchmarks/IIS.Performance/IIS.Performance.csproj
+++ b/src/IISIntegration/benchmarks/IIS.Performance/IIS.Performance.csproj
@@ -4,7 +4,7 @@
     <!-- Using shorter assembly name instead of Microsoft.AspNetCore.Server.Kestrel.Performance because https://github.com/dotnet/BenchmarkDotNet/issues/498 -->
     <AssemblyName>IIS.Performance</AssemblyName>
     <RootNamespace>Microsoft.AspNetCore.Server.IIS.Performance</RootNamespace>
-    <TargetFramework>netcoreapp2.2</TargetFramework>
+    <TargetFramework>netcoreapp3.0</TargetFramework>
     <OutputType>Exe</OutputType>
     <ServerGarbageCollection>true</ServerGarbageCollection>
     <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
diff --git a/src/IISIntegration/build/repo.targets b/src/IISIntegration/build/repo.targets
index 7d668d32b7b5..9785c82fdf5e 100644
--- a/src/IISIntegration/build/repo.targets
+++ b/src/IISIntegration/build/repo.targets
@@ -115,7 +115,7 @@
     <MSBuild
       Projects="$(StressAppBasePath)\StressTestWebSite.csproj"
       Targets="Publish"
-      Properties="TargetFramework=netcoreapp2.2;Configuration=$(Configuration);RuntimeIdentifier=win7-%(Platforms.Identity);PublishDir=$(StressAppPublishPath)\%(Identity);BuildProjectReferences=false" />
+      Properties="TargetFramework=netcoreapp3.0;Configuration=$(Configuration);RuntimeIdentifier=win7-%(Platforms.Identity);PublishDir=$(StressAppPublishPath)\%(Identity);BuildProjectReferences=false" />
 
     <ItemGroup>
       <StressAppFiles Include="$(StressAppPublishPath)\**\*" />
diff --git a/src/IISIntegration/build/testsite.props b/src/IISIntegration/build/testsite.props
index 74f205b4cf7d..9333b3531d4e 100644
--- a/src/IISIntegration/build/testsite.props
+++ b/src/IISIntegration/build/testsite.props
@@ -44,26 +44,19 @@
     <Copy SourceFiles="$(MSBuildThisFileDirectory)launchSettings.json" DestinationFolder="$(MSBuildProjectDirectory)\Properties" SkipUnchangedFiles="true" />
   </Target>
 
-  <!-- Deps file injection-->
-  <ItemGroup Condition="('$(InProcessTestSite)' == 'true') AND ('$(ReferenceTestTasks)' != 'false')">
+   <ItemGroup Condition="('$(InProcessTestSite)' == 'true') AND ('$(ReferenceTestTasks)' != 'false')">
     <ProjectReference Include="$(MSBuildThisFileDirectory)..\test\TestTasks\TestTasks.csproj">
       <ReferenceOutputAssembly>False</ReferenceOutputAssembly>
     </ProjectReference>
-  </ItemGroup>
+  </ItemGroup> 
 
   <Target Name="PrepareInjectionApp" Condition="'$(InProcessTestSite)' == 'true'">
     <PropertyGroup>
       <InjectDepsAssembly>$(MSBuildThisFileDirectory)..\test\TestTasks\bin\$(Configuration)\$(TargetFramework)\TestTasks</InjectDepsAssembly>
-      <InjectDepsApp Condition="'$(TargetFramework)' == 'net461'">$(InjectDepsAssembly)</InjectDepsApp>
       <InjectDepsArguments>"win7-$(NativePlatform)" "$(AncmInProcessRHPath)"</InjectDepsArguments>
     </PropertyGroup>
 
-    <PropertyGroup Condition="'$(TargetFramework)' == 'net461'">
-      <InjectDepsAssembly>$(InjectDepsAssembly).exe</InjectDepsAssembly>
-      <InjectDepsApp>$(InjectDepsAssembly)</InjectDepsApp>
-    </PropertyGroup>
-
-    <PropertyGroup Condition="'$(TargetFramework)' != 'net461'">
+    <PropertyGroup>
       <InjectDepsAssembly>$(InjectDepsAssembly).dll</InjectDepsAssembly>
       <InjectDepsApp>dotnet</InjectDepsApp>
       <InjectDepsArguments>$(InjectDepsAssembly) $(InjectDepsArguments)</InjectDepsArguments>
diff --git a/src/IISIntegration/samples/IISSample/IISSample.csproj b/src/IISIntegration/samples/IISSample/IISSample.csproj
index 556945519e8f..efdf0a9906f4 100644
--- a/src/IISIntegration/samples/IISSample/IISSample.csproj
+++ b/src/IISIntegration/samples/IISSample/IISSample.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk.Web">
 
   <PropertyGroup>
-    <TargetFrameworks>netcoreapp2.2;net461</TargetFrameworks>
+    <TargetFramework>netcoreapp3.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/src/IISIntegration/samples/NativeIISSample/NativeIISSample.csproj b/src/IISIntegration/samples/NativeIISSample/NativeIISSample.csproj
index 5fcf5c96a8c1..cf234bf64428 100644
--- a/src/IISIntegration/samples/NativeIISSample/NativeIISSample.csproj
+++ b/src/IISIntegration/samples/NativeIISSample/NativeIISSample.csproj
@@ -3,7 +3,7 @@
   <Import Project="..\..\build\testsite.props" />
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp2.2</TargetFramework>
+    <TargetFramework>netcoreapp3.0</TargetFramework>
     <InProcessTestSite>true</InProcessTestSite>
   </PropertyGroup>
 
diff --git a/src/IISIntegration/src/Microsoft.AspNetCore.Server.IIS/Core/HttpRequestStream.cs b/src/IISIntegration/src/Microsoft.AspNetCore.Server.IIS/Core/HttpRequestStream.cs
index 8a9d37b146e9..9fa5d7405e44 100644
--- a/src/IISIntegration/src/Microsoft.AspNetCore.Server.IIS/Core/HttpRequestStream.cs
+++ b/src/IISIntegration/src/Microsoft.AspNetCore.Server.IIS/Core/HttpRequestStream.cs
@@ -78,17 +78,12 @@ public override Task<int> ReadAsync(byte[] buffer, int offset, int count, Cancel
             return ReadAsyncInternal(new Memory<byte>(buffer, offset, count), cancellationToken).AsTask();
         }
 
-#if NETCOREAPP2_1
         public override ValueTask<int> ReadAsync(Memory<byte> destination, CancellationToken cancellationToken = default)
         {
             ValidateState(cancellationToken);
 
             return ReadAsyncInternal(destination, cancellationToken);
         }
-#elif NETSTANDARD2_0
-#else
-#error TFMs need to be updated
-#endif
 
         private async ValueTask<int> ReadAsyncInternal(Memory<byte> buffer, CancellationToken cancellationToken)
         {
diff --git a/src/IISIntegration/src/Microsoft.AspNetCore.Server.IIS/Core/HttpResponseStream.cs b/src/IISIntegration/src/Microsoft.AspNetCore.Server.IIS/Core/HttpResponseStream.cs
index 1a045354485f..739b6b16f5cf 100644
--- a/src/IISIntegration/src/Microsoft.AspNetCore.Server.IIS/Core/HttpResponseStream.cs
+++ b/src/IISIntegration/src/Microsoft.AspNetCore.Server.IIS/Core/HttpResponseStream.cs
@@ -89,17 +89,12 @@ public override Task WriteAsync(byte[] buffer, int offset, int count, Cancellati
             return _context.WriteAsync(new ReadOnlyMemory<byte>(buffer, offset, count), cancellationToken);
         }
 
-#if NETCOREAPP2_1
         public override ValueTask WriteAsync(ReadOnlyMemory<byte> source, CancellationToken cancellationToken = default)
         {
             ValidateState(cancellationToken);
 
-            return new ValueTask(_httpResponseControl.WriteAsync(source, cancellationToken));
+            return new ValueTask(_context.WriteAsync(source, cancellationToken));
         }
-#elif NETSTANDARD2_0
-#else
-#error TFMs need to be updated
-#endif
 
         public void StartAcceptingWrites()
         {
diff --git a/src/IISIntegration/src/Microsoft.AspNetCore.Server.IIS/Core/HttpUpgradeStream.cs b/src/IISIntegration/src/Microsoft.AspNetCore.Server.IIS/Core/HttpUpgradeStream.cs
index c8b481f948d9..eb71f933e834 100644
--- a/src/IISIntegration/src/Microsoft.AspNetCore.Server.IIS/Core/HttpUpgradeStream.cs
+++ b/src/IISIntegration/src/Microsoft.AspNetCore.Server.IIS/Core/HttpUpgradeStream.cs
@@ -145,15 +145,10 @@ public override Task<int> ReadAsync(byte[] buffer, int offset, int count, Cancel
             return _requestStream.ReadAsync(buffer, offset, count, cancellationToken);
         }
 
-#if NETCOREAPP2_1
         public override ValueTask<int> ReadAsync(Memory<byte> destination, CancellationToken cancellationToken = default)
         {
             return _requestStream.ReadAsync(destination, cancellationToken);
         }
-#elif NETSTANDARD2_0
-#else
-#error TFMs need to be updated
-#endif
 
         public override Task CopyToAsync(Stream destination, int bufferSize, CancellationToken cancellationToken)
         {
@@ -165,15 +160,10 @@ public override Task WriteAsync(byte[] buffer, int offset, int count, Cancellati
             return _responseStream.WriteAsync(buffer, offset, count, cancellationToken);
         }
 
-#if NETCOREAPP2_1
         public override ValueTask WriteAsync(ReadOnlyMemory<byte> source, CancellationToken cancellationToken = default)
         {
             return _responseStream.WriteAsync(source, cancellationToken);
         }
-#elif NETSTANDARD2_0
-#else
-#error TFMs need to be updated
-#endif
 
         public override long Seek(long offset, SeekOrigin origin)
         {
diff --git a/src/IISIntegration/src/Microsoft.AspNetCore.Server.IIS/Core/WrappingStream.cs b/src/IISIntegration/src/Microsoft.AspNetCore.Server.IIS/Core/WrappingStream.cs
index 18ae44371183..e765550b8f92 100644
--- a/src/IISIntegration/src/Microsoft.AspNetCore.Server.IIS/Core/WrappingStream.cs
+++ b/src/IISIntegration/src/Microsoft.AspNetCore.Server.IIS/Core/WrappingStream.cs
@@ -68,13 +68,8 @@ public override int Read(byte[] buffer, int offset, int count)
         public override Task<int> ReadAsync(byte[] buffer, int offset, int count, CancellationToken cancellationToken)
             => _inner.ReadAsync(buffer, offset, count, cancellationToken);
 
-#if NETCOREAPP2_1
         public override ValueTask<int> ReadAsync(Memory<byte> destination, CancellationToken cancellationToken = default)
             => _inner.ReadAsync(destination, cancellationToken);
-#elif NETSTANDARD2_0
-#else
-#error TFMs need to be updated
-#endif
 
         public override int ReadByte()
             => _inner.ReadByte();
@@ -91,13 +86,8 @@ public override void Write(byte[] buffer, int offset, int count)
         public override Task WriteAsync(byte[] buffer, int offset, int count, CancellationToken cancellationToken)
             => _inner.WriteAsync(buffer, offset, count, cancellationToken);
 
-#if NETCOREAPP2_1
         public override ValueTask WriteAsync(ReadOnlyMemory<byte> source, CancellationToken cancellationToken = default)
             => _inner.WriteAsync(source, cancellationToken);
-#elif NETSTANDARD2_0
-#else
-#error TFMs need to be updated
-#endif
 
         public override void WriteByte(byte value)
             => _inner.WriteByte(value);
diff --git a/src/IISIntegration/src/Microsoft.AspNetCore.Server.IIS/Microsoft.AspNetCore.Server.IIS.csproj b/src/IISIntegration/src/Microsoft.AspNetCore.Server.IIS/Microsoft.AspNetCore.Server.IIS.csproj
index 53145c2b2988..714665301481 100644
--- a/src/IISIntegration/src/Microsoft.AspNetCore.Server.IIS/Microsoft.AspNetCore.Server.IIS.csproj
+++ b/src/IISIntegration/src/Microsoft.AspNetCore.Server.IIS/Microsoft.AspNetCore.Server.IIS.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>netstandard2.0</TargetFramework>
+    <TargetFramework>netcoreapp3.0</TargetFramework>
     <PackageId>Microsoft.AspNetCore.Server.IIS</PackageId>
     <Description>Provides support for hosting ASP.NET Core in IIS using the AspNetCoreModule.</Description>
     <NoWarn>$(NoWarn);CS1591</NoWarn>
@@ -9,7 +9,7 @@
     <PackageTags>aspnetcore;iis</PackageTags>
     <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
     <PackNativeAssets Condition="'$(OS)' == 'Windows_NT'">true</PackNativeAssets>
-    <NativeAssetsTargetFramework>netcoreapp2.2</NativeAssetsTargetFramework>
+    <NativeAssetsTargetFramework>netcoreapp3.0</NativeAssetsTargetFramework>
     <DisableFastUpToDateCheck>True</DisableFastUpToDateCheck>
   </PropertyGroup>
 
diff --git a/src/IISIntegration/src/Microsoft.AspNetCore.Server.IISIntegration/Microsoft.AspNetCore.Server.IISIntegration.csproj b/src/IISIntegration/src/Microsoft.AspNetCore.Server.IISIntegration/Microsoft.AspNetCore.Server.IISIntegration.csproj
index faae91cdbf89..67e359cd76a2 100644
--- a/src/IISIntegration/src/Microsoft.AspNetCore.Server.IISIntegration/Microsoft.AspNetCore.Server.IISIntegration.csproj
+++ b/src/IISIntegration/src/Microsoft.AspNetCore.Server.IISIntegration/Microsoft.AspNetCore.Server.IISIntegration.csproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <Description>ASP.NET Core components for working with the IIS AspNetCoreModule.</Description>
-    <TargetFramework>netstandard2.0</TargetFramework>
+    <TargetFramework>netcoreapp3.0</TargetFramework>
     <NoWarn>$(NoWarn);CS1591</NoWarn>
     <GenerateDocumentationFile>true</GenerateDocumentationFile>
     <PackageTags>aspnetcore;iis</PackageTags>
diff --git a/src/IISIntegration/src/Microsoft.AspNetCore.Server.IntegrationTesting.IIS/IISExpressDeployer.cs b/src/IISIntegration/src/Microsoft.AspNetCore.Server.IntegrationTesting.IIS/IISExpressDeployer.cs
index 8fe8c665853d..3fa6e5db0fdc 100644
--- a/src/IISIntegration/src/Microsoft.AspNetCore.Server.IntegrationTesting.IIS/IISExpressDeployer.cs
+++ b/src/IISIntegration/src/Microsoft.AspNetCore.Server.IntegrationTesting.IIS/IISExpressDeployer.cs
@@ -50,7 +50,7 @@ public override async Task<DeploymentResult> DeployAsync()
                 // Start timer
                 StartTimer();
 
-                // For an unpublished application the dllroot points pre-built dlls like projectdir/bin/debug/net461/
+                // For an unpublished application the dllroot points pre-built dlls like projectdir/bin/debug/netcoreapp3.0/
                 // and contentRoot points to the project directory so you get things like static assets.
                 // For a published app both point to the publish directory.
                 var dllRoot = CheckIfPublishIsRequired();
diff --git a/src/IISIntegration/src/Microsoft.AspNetCore.Server.IntegrationTesting.IIS/Microsoft.AspNetCore.Server.IntegrationTesting.IIS.csproj b/src/IISIntegration/src/Microsoft.AspNetCore.Server.IntegrationTesting.IIS/Microsoft.AspNetCore.Server.IntegrationTesting.IIS.csproj
index 64577364d0d5..bd5e1e201bbf 100644
--- a/src/IISIntegration/src/Microsoft.AspNetCore.Server.IntegrationTesting.IIS/Microsoft.AspNetCore.Server.IntegrationTesting.IIS.csproj
+++ b/src/IISIntegration/src/Microsoft.AspNetCore.Server.IntegrationTesting.IIS/Microsoft.AspNetCore.Server.IntegrationTesting.IIS.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>netstandard2.0</TargetFramework>
+    <TargetFramework>netcoreapp3.0</TargetFramework>
     <PackageId>Microsoft.AspNetCore.Server.IntegrationTesting.IIS</PackageId>
     <!-- Always include a pre-release label since this is an internal-only package. -->
     <Version>$(VersionPrefix)-$(VersionSuffix)</Version>
diff --git a/src/IISIntegration/test/Common.FunctionalTests/BasicAuthTests.cs b/src/IISIntegration/test/Common.FunctionalTests/BasicAuthTests.cs
index d8607db21ed2..13c3efb76bc3 100644
--- a/src/IISIntegration/test/Common.FunctionalTests/BasicAuthTests.cs
+++ b/src/IISIntegration/test/Common.FunctionalTests/BasicAuthTests.cs
@@ -26,7 +26,7 @@ public BasicAuthTests(PublishedSitesFixture fixture)
 
         public static TestMatrix TestVariants
             => TestMatrix.ForServers(DeployerSelector.ServerType)
-                .WithTfms(Tfm.NetCoreApp22)
+                .WithTfms(Tfm.NetCoreApp30)
                 .WithApplicationTypes(ApplicationType.Portable)
                 .WithAllAncmVersions()
                 .WithAllHostingModels();
diff --git a/src/IISIntegration/test/Common.FunctionalTests/ClientCertificateTests.cs b/src/IISIntegration/test/Common.FunctionalTests/ClientCertificateTests.cs
index 43ccc83eff04..438ad7dc57e4 100644
--- a/src/IISIntegration/test/Common.FunctionalTests/ClientCertificateTests.cs
+++ b/src/IISIntegration/test/Common.FunctionalTests/ClientCertificateTests.cs
@@ -31,7 +31,7 @@ public ClientCertificateTests(PublishedSitesFixture fixture, ClientCertificateFi
 
         public static TestMatrix TestVariants
             => TestMatrix.ForServers(DeployerSelector.ServerType)
-                .WithTfms(Tfm.NetCoreApp22, Tfm.Net461)
+                .WithTfms(Tfm.NetCoreApp30)
                 .WithAllApplicationTypes()
                 .WithAllAncmVersions()
                 .WithAllHostingModels();
diff --git a/src/IISIntegration/test/Common.FunctionalTests/CommonStartupTests.cs b/src/IISIntegration/test/Common.FunctionalTests/CommonStartupTests.cs
index e2bcf2a8f952..54c8385e7d0a 100644
--- a/src/IISIntegration/test/Common.FunctionalTests/CommonStartupTests.cs
+++ b/src/IISIntegration/test/Common.FunctionalTests/CommonStartupTests.cs
@@ -22,7 +22,7 @@ public CommonStartupTests(PublishedSitesFixture fixture)
 
         public static TestMatrix TestVariants
             => TestMatrix.ForServers(DeployerSelector.ServerType)
-                .WithTfms(Tfm.NetCoreApp22)
+                .WithTfms(Tfm.NetCoreApp30)
                 .WithAllApplicationTypes()
                 .WithAllAncmVersions()
                 .WithAllHostingModels();
diff --git a/src/IISIntegration/test/Common.FunctionalTests/CompressionTests.cs b/src/IISIntegration/test/Common.FunctionalTests/CompressionTests.cs
index c2d0277c4c67..2359eb90c770 100644
--- a/src/IISIntegration/test/Common.FunctionalTests/CompressionTests.cs
+++ b/src/IISIntegration/test/Common.FunctionalTests/CompressionTests.cs
@@ -50,7 +50,7 @@ public async Task PassesThroughCompression()
             Assert.Equal(
                 new byte[] {
                     0x1F, 0x8B, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00,
-                    0x04, 0x0B, 0x63, 0x60, 0xA0, 0x3D, 0x00, 0x00,
+                    0x04, 0x0A, 0x63, 0x60, 0xA0, 0x3D, 0x00, 0x00,
                     0xCA, 0xC6, 0x88, 0x99, 0x64, 0x00, 0x00, 0x00 },
                 await response.Content.ReadAsByteArrayAsync());
         }
diff --git a/src/IISIntegration/test/Common.FunctionalTests/Inprocess/ClientDisconnectTests.cs b/src/IISIntegration/test/Common.FunctionalTests/Inprocess/ClientDisconnectTests.cs
index 6e2d1bc7521c..f97001b45f0d 100644
--- a/src/IISIntegration/test/Common.FunctionalTests/Inprocess/ClientDisconnectTests.cs
+++ b/src/IISIntegration/test/Common.FunctionalTests/Inprocess/ClientDisconnectTests.cs
@@ -66,7 +66,7 @@ await connection.Send(
             await _fixture.Client.RetryRequestAsync("/WaitingRequestCount", async message => await message.Content.ReadAsStringAsync() == "0");
         }
 
-        [ConditionalFact]
+        [ConditionalFact(Skip = "https://github.com/aspnet/AspNetCore/issues/4512")]
         public async Task ClientDisconnectCallbackStress()
         {
             // Fixture initialization fails if inside of the Task.Run, so send an
diff --git a/src/IISIntegration/test/Common.FunctionalTests/Inprocess/StartupTests.cs b/src/IISIntegration/test/Common.FunctionalTests/Inprocess/StartupTests.cs
index 458d356ebac7..071e8bf082e1 100644
--- a/src/IISIntegration/test/Common.FunctionalTests/Inprocess/StartupTests.cs
+++ b/src/IISIntegration/test/Common.FunctionalTests/Inprocess/StartupTests.cs
@@ -109,7 +109,7 @@ public async Task StartsWithDotnetOnThePath(string path)
 
         public static TestMatrix TestVariants
             => TestMatrix.ForServers(DeployerSelector.ServerType)
-                .WithTfms(Tfm.NetCoreApp22)
+                .WithTfms(Tfm.NetCoreApp30)
                 .WithAllApplicationTypes()
                 .WithAncmV2InProcess();
 
diff --git a/src/IISIntegration/test/Common.FunctionalTests/LogFileTests.cs b/src/IISIntegration/test/Common.FunctionalTests/LogFileTests.cs
index 1e15cde5c297..e93b4f007abe 100644
--- a/src/IISIntegration/test/Common.FunctionalTests/LogFileTests.cs
+++ b/src/IISIntegration/test/Common.FunctionalTests/LogFileTests.cs
@@ -24,7 +24,7 @@ public LoggingTests(PublishedSitesFixture fixture)
 
         public static TestMatrix TestVariants
             => TestMatrix.ForServers(DeployerSelector.ServerType)
-                .WithTfms(Tfm.NetCoreApp22)
+                .WithTfms(Tfm.NetCoreApp30)
                 .WithAllApplicationTypes()
                 .WithAncmVersions(AncmVersion.AspNetCoreModuleV2)
                 .WithAllHostingModels();
diff --git a/src/IISIntegration/test/Common.FunctionalTests/OutOfProcess/AspNetCorePortTests.cs b/src/IISIntegration/test/Common.FunctionalTests/OutOfProcess/AspNetCorePortTests.cs
index 3b866627172f..6c241f822c68 100644
--- a/src/IISIntegration/test/Common.FunctionalTests/OutOfProcess/AspNetCorePortTests.cs
+++ b/src/IISIntegration/test/Common.FunctionalTests/OutOfProcess/AspNetCorePortTests.cs
@@ -32,7 +32,7 @@ public AspNetCorePortTests(PublishedSitesFixture fixture)
 
         public static TestMatrix TestVariants
             => TestMatrix.ForServers(DeployerSelector.ServerType)
-                .WithTfms(Tfm.NetCoreApp22)
+                .WithTfms(Tfm.NetCoreApp30)
                 .WithApplicationTypes(ApplicationType.Portable)
                 .WithAllAncmVersions();
 
diff --git a/src/IISIntegration/test/Common.FunctionalTests/OutOfProcess/HelloWorldTest.cs b/src/IISIntegration/test/Common.FunctionalTests/OutOfProcess/HelloWorldTest.cs
index f6e36613d786..0c0592e86629 100644
--- a/src/IISIntegration/test/Common.FunctionalTests/OutOfProcess/HelloWorldTest.cs
+++ b/src/IISIntegration/test/Common.FunctionalTests/OutOfProcess/HelloWorldTest.cs
@@ -25,7 +25,7 @@ public HelloWorldTests(PublishedSitesFixture fixture)
 
         public static TestMatrix TestVariants
             => TestMatrix.ForServers(DeployerSelector.ServerType)
-                .WithTfms(Tfm.NetCoreApp22, Tfm.Net461)
+                .WithTfms(Tfm.NetCoreApp30)
                 .WithAllApplicationTypes()
                 .WithAllAncmVersions();
 
diff --git a/src/IISIntegration/test/Common.FunctionalTests/PublishedSitesFixture.cs b/src/IISIntegration/test/Common.FunctionalTests/PublishedSitesFixture.cs
index 282ee2610983..ba11dece7c28 100644
--- a/src/IISIntegration/test/Common.FunctionalTests/PublishedSitesFixture.cs
+++ b/src/IISIntegration/test/Common.FunctionalTests/PublishedSitesFixture.cs
@@ -46,7 +46,7 @@ public IISDeploymentParameters GetBaseDeploymentParameters(ApplicationPublisher
                 new DeploymentParameters(publisher.ApplicationPath, DeployerSelector.ServerType, RuntimeFlavor.CoreClr, RuntimeArchitecture.x64)
                 {
                     HostingModel = hostingModel,
-                    TargetFramework = "netcoreapp2.2",
+                    TargetFramework = Tfm.NetCoreApp30,
                     AncmVersion = AncmVersion.AspNetCoreModuleV2
                 },
                 publish);
diff --git a/src/IISIntegration/test/Common.FunctionalTests/Utilities/IISTestSiteFixture.cs b/src/IISIntegration/test/Common.FunctionalTests/Utilities/IISTestSiteFixture.cs
index e8cfd8f64116..1c035a818ccf 100644
--- a/src/IISIntegration/test/Common.FunctionalTests/Utilities/IISTestSiteFixture.cs
+++ b/src/IISIntegration/test/Common.FunctionalTests/Utilities/IISTestSiteFixture.cs
@@ -113,7 +113,7 @@ private void EnsureInitialized()
                 RuntimeFlavor.CoreClr,
                 RuntimeArchitecture.x64)
             {
-                TargetFramework = Tfm.NetCoreApp22,
+                TargetFramework = Tfm.NetCoreApp30,
                 AncmVersion = AncmVersion.AspNetCoreModuleV2,
                 HostingModel = HostingModel.InProcess,
                 PublishApplicationBeforeDeployment = true,
diff --git a/src/IISIntegration/test/Common.FunctionalTests/WindowsAuthTests.cs b/src/IISIntegration/test/Common.FunctionalTests/WindowsAuthTests.cs
index 8431b1580199..14dc6275cdf0 100644
--- a/src/IISIntegration/test/Common.FunctionalTests/WindowsAuthTests.cs
+++ b/src/IISIntegration/test/Common.FunctionalTests/WindowsAuthTests.cs
@@ -24,7 +24,7 @@ public WindowsAuthTests(PublishedSitesFixture fixture)
 
         public static TestMatrix TestVariants
             => TestMatrix.ForServers(DeployerSelector.ServerType)
-                .WithTfms(Tfm.NetCoreApp22, Tfm.Net461)
+                .WithTfms(Tfm.NetCoreApp30)
                 .WithApplicationTypes(ApplicationType.Portable)
                 .WithAllAncmVersions()
                 .WithAllHostingModels();
diff --git a/src/IISIntegration/test/Common.Tests/Common.Tests.csproj b/src/IISIntegration/test/Common.Tests/Common.Tests.csproj
index ede80732eeb9..a53d327877aa 100644
--- a/src/IISIntegration/test/Common.Tests/Common.Tests.csproj
+++ b/src/IISIntegration/test/Common.Tests/Common.Tests.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFrameworks>netcoreapp2.2</TargetFrameworks>
+    <TargetFramework>netcoreapp3.0</TargetFramework>
     <IsTestProject>false</IsTestProject>
   </PropertyGroup>
 
diff --git a/src/IISIntegration/test/Directory.Build.props b/src/IISIntegration/test/Directory.Build.props
index edfd66625455..4b89a431e7f2 100644
--- a/src/IISIntegration/test/Directory.Build.props
+++ b/src/IISIntegration/test/Directory.Build.props
@@ -1,15 +1,6 @@
 <Project>
   <Import Project="..\Directory.Build.props" />
 
-  <PropertyGroup>
-    <!-- These tests are remaining at netcoreapp2.2 because the Benchmarks and functional tests use the same websites.
-      We must leave the benchmarks at 2.1, and if you try to import a project that uses 22 to a 21 project it complains. -->
-    <DeveloperBuildTestTfms>netcoreapp2.2</DeveloperBuildTestTfms>
-    <StandardTestTfms>$(DeveloperBuildTestTfms)</StandardTestTfms>
-    <StandardTestTfms Condition=" '$(DeveloperBuild)' != 'true' ">$(StandardTestTfms)</StandardTestTfms>
-    <StandardTestTfms Condition=" '$(DeveloperBuild)' != 'true' AND '$(OS)' == 'Windows_NT' ">$(StandardTestTfms);net461</StandardTestTfms>
-  </PropertyGroup>
-
   <ItemGroup>
     <PackageReference Include="Internal.AspNetCore.Sdk" PrivateAssets="All" Version="$(InternalAspNetCoreSdkPackageVersion)" />
   </ItemGroup>
diff --git a/src/IISIntegration/test/IIS.BackwardsCompatibility.FunctionalTests/IIS.BackwardsCompatibility.FunctionalTests.csproj b/src/IISIntegration/test/IIS.BackwardsCompatibility.FunctionalTests/IIS.BackwardsCompatibility.FunctionalTests.csproj
index c819a03ab19a..aa012e408a66 100644
--- a/src/IISIntegration/test/IIS.BackwardsCompatibility.FunctionalTests/IIS.BackwardsCompatibility.FunctionalTests.csproj
+++ b/src/IISIntegration/test/IIS.BackwardsCompatibility.FunctionalTests/IIS.BackwardsCompatibility.FunctionalTests.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFrameworks>netcoreapp2.2</TargetFrameworks>
+    <TargetFramework>netcoreapp3.0</TargetFramework>
     <TestGroupName>IISBackwardsCompatibility.FunctionalTests</TestGroupName>
     <DisableFastUpToDateCheck>True</DisableFastUpToDateCheck>
   </PropertyGroup>
diff --git a/src/IISIntegration/test/IIS.ForwardsCompatibility.FunctionalTests/IIS.ForwardsCompatibility.FunctionalTests.csproj b/src/IISIntegration/test/IIS.ForwardsCompatibility.FunctionalTests/IIS.ForwardsCompatibility.FunctionalTests.csproj
index 929f6ec6b033..c7c897e2e57d 100644
--- a/src/IISIntegration/test/IIS.ForwardsCompatibility.FunctionalTests/IIS.ForwardsCompatibility.FunctionalTests.csproj
+++ b/src/IISIntegration/test/IIS.ForwardsCompatibility.FunctionalTests/IIS.ForwardsCompatibility.FunctionalTests.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFrameworks>netcoreapp2.2</TargetFrameworks>
+    <TargetFramework>netcoreapp3.0</TargetFramework>
     <TestGroupName>IISForwardsCompatibility.FunctionalTests</TestGroupName>
     <DisableFastUpToDateCheck>True</DisableFastUpToDateCheck>
   </PropertyGroup>
diff --git a/src/IISIntegration/test/IIS.FunctionalTests/IIS.FunctionalTests.csproj b/src/IISIntegration/test/IIS.FunctionalTests/IIS.FunctionalTests.csproj
index 62dec62e60d9..b42e1ca4b96f 100644
--- a/src/IISIntegration/test/IIS.FunctionalTests/IIS.FunctionalTests.csproj
+++ b/src/IISIntegration/test/IIS.FunctionalTests/IIS.FunctionalTests.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFrameworks>netcoreapp2.2</TargetFrameworks>
+    <TargetFramework>netcoreapp3.0</TargetFramework>
     <TestGroupName>IIS.FunctionalTests</TestGroupName>
     <DisableFastUpToDateCheck>True</DisableFastUpToDateCheck>
   </PropertyGroup>
diff --git a/src/IISIntegration/test/IIS.Tests/IIS.Tests.csproj b/src/IISIntegration/test/IIS.Tests/IIS.Tests.csproj
index 3fdb2a536351..4d95c0cfb46d 100644
--- a/src/IISIntegration/test/IIS.Tests/IIS.Tests.csproj
+++ b/src/IISIntegration/test/IIS.Tests/IIS.Tests.csproj
@@ -1,7 +1,7 @@
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFrameworks>netcoreapp2.2</TargetFrameworks>
+    <TargetFramework>netcoreapp3.0</TargetFramework>
   </PropertyGroup>
 
   <Import Project="..\..\build\functional-test-assets.targets" />
@@ -11,7 +11,6 @@
     <ProjectReference Include="..\Common.Tests\Common.Tests.csproj" />
   </ItemGroup>
 
-
   <ItemGroup>
     <PackageReference Include="Microsoft.AspNetCore.Server.IntegrationTesting" Version="$(MicrosoftAspNetCoreServerIntegrationTestingPackageVersion)" />
     <PackageReference Include="Microsoft.AspNetCore.Hosting" Version="$(MicrosoftAspNetCoreHostingPackageVersion)" />
diff --git a/src/IISIntegration/test/IISExpress.FunctionalTests/HttpsTests.cs b/src/IISIntegration/test/IISExpress.FunctionalTests/HttpsTests.cs
index ac58f73c0e30..7324bd761307 100644
--- a/src/IISIntegration/test/IISExpress.FunctionalTests/HttpsTests.cs
+++ b/src/IISIntegration/test/IISExpress.FunctionalTests/HttpsTests.cs
@@ -24,7 +24,7 @@ public HttpsTests(PublishedSitesFixture fixture)
 
         public static TestMatrix TestVariants
             => TestMatrix.ForServers(DeployerSelector.ServerType)
-                .WithTfms(Tfm.NetCoreApp22, Tfm.Net461)
+                .WithTfms(Tfm.NetCoreApp30)
                 .WithAllApplicationTypes()
                 .WithAllAncmVersions()
                 .WithAllHostingModels();
diff --git a/src/IISIntegration/test/IISExpress.FunctionalTests/IISExpress.FunctionalTests.csproj b/src/IISIntegration/test/IISExpress.FunctionalTests/IISExpress.FunctionalTests.csproj
index 988c2d5943ec..549d4ae3b46d 100644
--- a/src/IISIntegration/test/IISExpress.FunctionalTests/IISExpress.FunctionalTests.csproj
+++ b/src/IISIntegration/test/IISExpress.FunctionalTests/IISExpress.FunctionalTests.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFrameworks>netcoreapp2.2</TargetFrameworks>
+    <TargetFramework>netcoreapp3.0</TargetFramework>
     <DisableFastUpToDateCheck>True</DisableFastUpToDateCheck>
   </PropertyGroup>
 
diff --git a/src/IISIntegration/test/IISExpress.FunctionalTests/OutOfProcess/NtlmAuthentationTest.cs b/src/IISIntegration/test/IISExpress.FunctionalTests/OutOfProcess/NtlmAuthentationTest.cs
index 3ff46bf30432..294498389fb0 100644
--- a/src/IISIntegration/test/IISExpress.FunctionalTests/OutOfProcess/NtlmAuthentationTest.cs
+++ b/src/IISIntegration/test/IISExpress.FunctionalTests/OutOfProcess/NtlmAuthentationTest.cs
@@ -30,7 +30,7 @@ public NtlmAuthenticationTests(PublishedSitesFixture fixture)
 
         public static TestMatrix TestVariants
             => TestMatrix.ForServers(DeployerSelector.ServerType)
-                .WithTfms(Tfm.NetCoreApp22, Tfm.Net461)
+                .WithTfms(Tfm.NetCoreApp30)
                 .WithAllAncmVersions();
 
         [ConditionalTheory]
diff --git a/src/IISIntegration/test/Microsoft.AspNetCore.Server.IISIntegration.Tests/Microsoft.AspNetCore.Server.IISIntegration.Tests.csproj b/src/IISIntegration/test/Microsoft.AspNetCore.Server.IISIntegration.Tests/Microsoft.AspNetCore.Server.IISIntegration.Tests.csproj
index 115d768c1b0d..491dc7196392 100644
--- a/src/IISIntegration/test/Microsoft.AspNetCore.Server.IISIntegration.Tests/Microsoft.AspNetCore.Server.IISIntegration.Tests.csproj
+++ b/src/IISIntegration/test/Microsoft.AspNetCore.Server.IISIntegration.Tests/Microsoft.AspNetCore.Server.IISIntegration.Tests.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFrameworks>$(StandardTestTfms)</TargetFrameworks>
+    <TargetFramework>netcoreapp3.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/src/IISIntegration/test/TestTasks/TestTasks.csproj b/src/IISIntegration/test/TestTasks/TestTasks.csproj
index 3cf4f265bb91..24f48ce246d2 100644
--- a/src/IISIntegration/test/TestTasks/TestTasks.csproj
+++ b/src/IISIntegration/test/TestTasks/TestTasks.csproj
@@ -1,8 +1,9 @@
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFrameworks>$(StandardTestTfms)</TargetFrameworks>
+    <TargetFramework>netcoreapp3.0</TargetFramework>
+    <RuntimeIdentifiers>win7-x64;win7-x86</RuntimeIdentifiers>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/src/IISIntegration/test/WebSites/InProcessForwardsCompatWebSite/InProcessWebSite.csproj b/src/IISIntegration/test/WebSites/InProcessForwardsCompatWebSite/InProcessWebSite.csproj
index e08c2be69f1a..abf9d745427d 100644
--- a/src/IISIntegration/test/WebSites/InProcessForwardsCompatWebSite/InProcessWebSite.csproj
+++ b/src/IISIntegration/test/WebSites/InProcessForwardsCompatWebSite/InProcessWebSite.csproj
@@ -3,7 +3,7 @@
   <Import Project="..\..\..\build\testsite.props" />
 
   <PropertyGroup>
-    <TargetFrameworks>netcoreapp2.2</TargetFrameworks>
+    <TargetFramework>netcoreapp3.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/src/IISIntegration/test/WebSites/InProcessWebSite/InProcessWebSite.csproj b/src/IISIntegration/test/WebSites/InProcessWebSite/InProcessWebSite.csproj
index d007d2daa104..e50a8777e51a 100644
--- a/src/IISIntegration/test/WebSites/InProcessWebSite/InProcessWebSite.csproj
+++ b/src/IISIntegration/test/WebSites/InProcessWebSite/InProcessWebSite.csproj
@@ -1,9 +1,9 @@
-<Project Sdk="Microsoft.NET.Sdk.Web">
+<Project Sdk="Microsoft.NET.Sdk.Web">
 
   <Import Project="..\..\..\build\testsite.props" />
 
   <PropertyGroup>
-    <TargetFrameworks>netcoreapp2.2</TargetFrameworks>
+    <TargetFramework>netcoreapp3.0</TargetFramework>
     <InProcessTestSite>true</InProcessTestSite>
   </PropertyGroup>
 
diff --git a/src/IISIntegration/test/WebSites/OutOfProcessWebSite/OutOfProcessWebSite.csproj b/src/IISIntegration/test/WebSites/OutOfProcessWebSite/OutOfProcessWebSite.csproj
index 14beb7394ee8..4f6c2f95be9b 100644
--- a/src/IISIntegration/test/WebSites/OutOfProcessWebSite/OutOfProcessWebSite.csproj
+++ b/src/IISIntegration/test/WebSites/OutOfProcessWebSite/OutOfProcessWebSite.csproj
@@ -3,7 +3,8 @@
   <Import Project="..\..\..\build\testsite.props" />
 
   <PropertyGroup>
-    <TargetFrameworks>$(StandardTestTfms)</TargetFrameworks>
+    <TargetFramework>netcoreapp3.0</TargetFramework>
+    <AspNetCoreHostingModel>OutOfProcess</AspNetCoreHostingModel>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/src/IISIntegration/test/WebSites/StressTestWebSite/StressTestWebSite.csproj b/src/IISIntegration/test/WebSites/StressTestWebSite/StressTestWebSite.csproj
index 25ae0322215f..453950b189d4 100644
--- a/src/IISIntegration/test/WebSites/StressTestWebSite/StressTestWebSite.csproj
+++ b/src/IISIntegration/test/WebSites/StressTestWebSite/StressTestWebSite.csproj
@@ -3,7 +3,7 @@
   <Import Project="..\..\..\build\testsite.props" />
 
   <PropertyGroup>
-    <TargetFrameworks>$(StandardTestTfms)</TargetFrameworks>
+    <TargetFramework>netcoreapp3.0</TargetFramework>
     <InProcessTestSite>true</InProcessTestSite>
   </PropertyGroup>
 
diff --git a/src/IISIntegration/test/WebSites/shared/WebSockets/TestStartup.cs b/src/IISIntegration/test/WebSites/shared/WebSockets/TestStartup.cs
index b1604e367afb..f35b9db813e1 100644
--- a/src/IISIntegration/test/WebSites/shared/WebSockets/TestStartup.cs
+++ b/src/IISIntegration/test/WebSites/shared/WebSockets/TestStartup.cs
@@ -1,7 +1,9 @@
 using System;
+using System.Collections.Generic;
 using System.Reflection;
 using System.Threading.Tasks;
 using Microsoft.AspNetCore.Builder;
+using Microsoft.AspNetCore.Builder.Internal;
 using Microsoft.AspNetCore.Http;
 
 namespace Microsoft.AspNetCore.IISIntegration.FunctionalTests
@@ -10,6 +12,8 @@ public static class TestStartup
     {
         public static void Register(IApplicationBuilder app, object startup)
         {
+            var delegates = new Dictionary<string, RequestDelegate>();
+
             var type = startup.GetType();
             foreach (var method in type.GetMethods(BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance))
             {
@@ -17,22 +21,40 @@ public static void Register(IApplicationBuilder app, object startup)
                 if (method.Name != "Configure" &&
                     parameters.Length == 1)
                 {
-                    Action<IApplicationBuilder> appfunc = null;
+                    RequestDelegate appfunc = null;
+
                     if (parameters[0].ParameterType == typeof(IApplicationBuilder))
                     {
-                        appfunc = innerAppBuilder => method.Invoke(startup, new[] { innerAppBuilder });
+                        var innerAppBuilder = app.New();
+                        method.Invoke(startup, new[] { innerAppBuilder });
+                        appfunc = innerAppBuilder.Build();
                     }
                     else if (parameters[0].ParameterType == typeof(HttpContext))
                     {
-                        appfunc = innerAppBuilder => innerAppBuilder.Run(ctx => (Task)method.Invoke(startup, new[] { ctx }));
+                        appfunc = context => (Task)method.Invoke(startup, new[] { context });
                     }
 
-                    if (appfunc != null)
+                    if (appfunc == null)
                     {
-                        app.Map("/" + method.Name, appfunc);
+                        continue;
                     }
+
+                    delegates.Add("/" + method.Name, appfunc);
                 }
             }
+
+            app.Run(async context => {
+                    foreach (var requestDelegate in delegates)
+                    {
+                        if (context.Request.Path.StartsWithSegments(requestDelegate.Key, out var matchedPath, out var remainingPath))
+                        {
+                            var pathBase = context.Request.PathBase;
+                            context.Request.PathBase = pathBase.Add(matchedPath);
+                            context.Request.Path = remainingPath;
+                            await requestDelegate.Value(context);
+                        }
+                    }
+                });
         }
     }
 }
diff --git a/src/Razor/korebuild-lock.txt b/src/Razor/korebuild-lock.txt
new file mode 100644
index 000000000000..0970da437809
--- /dev/null
+++ b/src/Razor/korebuild-lock.txt
@@ -0,0 +1,2 @@
+version:3.0.0-build-20181120.4
+commithash:84dcc6f0eb5455a3c0305d6d238926defb050889