update msquic (#81742)

* update msquic

* Update src/libraries/System.Net.Quic/src/System.Net.Quic.csproj
Co-authored-by: NMarie Píchová <11718369+ManickaP@users.noreply.github.com>

---------
Co-authored-by: NMarie Píchová <11718369+ManickaP@users.noreply.github.com>

eng/Versions.props

@@ -221,7 +221,7 @@
     <!-- ICU -->
     <MicrosoftNETCoreRuntimeICUTransportVersion>8.0.0-preview.2.23116.1</MicrosoftNETCoreRuntimeICUTransportVersion>
     <!-- MsQuic -->
-    <MicrosoftNativeQuicMsQuicVersion>2.1.1</MicrosoftNativeQuicMsQuicVersion>
+    <MicrosoftNativeQuicMsQuicVersion>2.1.7</MicrosoftNativeQuicMsQuicVersion>
     <SystemNetMsQuicTransportVersion>8.0.0-alpha.1.23107.1</SystemNetMsQuicTransportVersion>
     <!-- Mono LLVM -->
     <runtimelinuxarm64MicrosoftNETCoreRuntimeMonoLLVMSdkVersion>14.0.0-alpha.1.23122.2</runtimelinuxarm64MicrosoftNETCoreRuntimeMonoLLVMSdkVersion>

src/libraries/System.Net.Quic/src/System.Net.Quic.csproj

@@ -12,7 +12,9 @@
     <DefineConstants Condition="'$(TargetPlatformIdentifier)' == 'windows'">$(DefineConstants);TARGET_WINDOWS</DefineConstants>
     <GeneratePlatformNotSupportedAssemblyMessage Condition="'$(TargetPlatformIdentifier)' == ''">SR.SystemNetQuic_PlatformNotSupported</GeneratePlatformNotSupportedAssemblyMessage>
     <ApiExclusionListPath Condition="'$(TargetPlatformIdentifier)' == ''">ExcludeApiList.PNSE.txt</ApiExclusionListPath>
-    <UseQuicTransportPackage  Condition="'$(UseQuicTransportPackage)' == ''">false</UseQuicTransportPackage>
+    <!-- This controls if we consume official binaries from MsQuic or if we use binaries published from dotnet/msquic repo.
+         Release branches should generally consume MsQuic release code, transport allows us to consume and test pre-released versions -->
+    <UseQuicTransportPackage  Condition="'$(UseQuicTransportPackage)' == ''">true</UseQuicTransportPackage>
   </PropertyGroup>
   <ItemGroup>
     <AssemblyAttribute Include="System.Runtime.Versioning.RequiresPreviewFeaturesAttribute" />
@@ -137,7 +139,7 @@
     <Reference Include="System.Diagnostics.StackTrace" Condition="'$(Configuration)' == 'Debug'" />
   </ItemGroup>
 
-  <!-- Support for deploying msquic on Windows -->
+  <!-- Support for deploying msquic on Windows. We make msquic.dll part of runtime binaries: either from official releases or our transport feed. -->
   <ItemGroup Condition="'$(TargetPlatformIdentifier)' == 'windows' and
                         '$(TargetOS)' == 'windows' and
                         '$(DotNetBuildFromSource)' != 'true'">