Update to .NET RC2 #7659

NachoEchevarria · 2025-10-15T14:47:08Z

Summary of changes

Reason for change

Implementation details

Test coverage

Other details

dd-trace-dotnet-ci-bot · 2025-10-17T09:30:26Z

Execution-Time Benchmarks Report ⏱️

Execution-time results for samples comparing the following branches/commits:

Execution-time benchmarks measure the whole time it takes to execute a program. And are intended to measure the one-off costs. Cases where the execution time results for the PR are worse than latest master results are shown in red. The following thresholds were used for comparing the execution times:

Welch test with statistical test for significance of 5%
Only results indicating a difference greater than 5% and 5 ms are considered.

Note that these results are based on a single point-in-time result for each branch. For full results, see the dashboard.

Graphs show the p99 interval based on the mean and StdDev of the test run, as well as the mean value of the run (shown as a diamond below the graph).

gantt
    title Execution time (ms) FakeDbCommand (.NET Framework 4.8) 
    dateFormat  X
    axisFormat %s
    todayMarker off
    section Bailout
    This PR (7659) - mean (72ms)  : 70, 73
     .   : milestone, 72,
    master - mean (72ms)  : 71, 73
     .   : milestone, 72,

    section Baseline
    This PR (7659) - mean (68ms)  : 66, 70
     .   : milestone, 68,
    master - mean (68ms)  : 67, 70
     .   : milestone, 68,

    section CallTarget+Inlining+NGEN
    This PR (7659) - mean (1,060ms)  : 987, 1133
     .   : milestone, 1060,
    master - mean (1,052ms)  : 986, 1118
     .   : milestone, 1052,

gantt
    title Execution time (ms) FakeDbCommand (.NET Core 3.1) 
    dateFormat  X
    axisFormat %s
    todayMarker off
    section Bailout
    This PR (7659) - mean (106ms)  : 105, 108
     .   : milestone, 106,
    master - mean (105ms)  : 104, 107
     .   : milestone, 105,

    section Baseline
    This PR (7659) - mean (106ms)  : 103, 108
     .   : milestone, 106,
    master - mean (105ms)  : 103, 107
     .   : milestone, 105,

    section CallTarget+Inlining+NGEN
    This PR (7659) - mean (746ms)  : 724, 767
     .   : milestone, 746,
    master - mean (742ms)  : 722, 762
     .   : milestone, 742,

gantt
    title Execution time (ms) FakeDbCommand (.NET 6) 
    dateFormat  X
    axisFormat %s
    todayMarker off
    section Bailout
    This PR (7659) - mean (94ms)  : 93, 95
     .   : milestone, 94,
    master - mean (94ms)  : 93, 95
     .   : milestone, 94,

    section Baseline
    This PR (7659) - mean (93ms)  : 91, 96
     .   : milestone, 93,
    master - mean (94ms)  : 92, 96
     .   : milestone, 94,

    section CallTarget+Inlining+NGEN
    This PR (7659) - mean (699ms)  : 676, 721
     .   : milestone, 699,
    master - mean (721ms)  : 660, 781
     .   : milestone, 721,

gantt
    title Execution time (ms) FakeDbCommand (.NET 8) 
    dateFormat  X
    axisFormat %s
    todayMarker off
    section Bailout
    This PR (7659) - mean (93ms)  : 92, 94
     .   : milestone, 93,
    master - mean (92ms)  : 91, 94
     .   : milestone, 92,

    section Baseline
    This PR (7659) - mean (92ms)  : 90, 94
     .   : milestone, 92,
    master - mean (92ms)  : 90, 94
     .   : milestone, 92,

    section CallTarget+Inlining+NGEN
    This PR (7659) - mean (655ms)  : 644, 666
     .   : milestone, 655,
    master - mean (663ms)  : 649, 677
     .   : milestone, 663,

gantt
    title Execution time (ms) HttpMessageHandler (.NET Framework 4.8) 
    dateFormat  X
    axisFormat %s
    todayMarker off
    section Bailout
    This PR (7659) - mean (197ms)  : 193, 201
     .   : milestone, 197,
    master - mean (197ms)  : 193, 201
     .   : milestone, 197,

    section Baseline
    This PR (7659) - mean (193ms)  : 190, 196
     .   : milestone, 193,
    master - mean (194ms)  : 189, 199
     .   : milestone, 194,

    section CallTarget+Inlining+NGEN
    This PR (7659) - mean (1,163ms)  : 1110, 1215
     .   : milestone, 1163,
    master - mean (1,169ms)  : 1115, 1224
     .   : milestone, 1169,

gantt
    title Execution time (ms) HttpMessageHandler (.NET Core 3.1) 
    dateFormat  X
    axisFormat %s
    todayMarker off
    section Bailout
    This PR (7659) - mean (277ms)  : 272, 281
     .   : milestone, 277,
    master - mean (279ms)  : 273, 284
     .   : milestone, 279,

    section Baseline
    This PR (7659) - mean (277ms)  : 270, 285
     .   : milestone, 277,
    master - mean (277ms)  : 271, 284
     .   : milestone, 277,

    section CallTarget+Inlining+NGEN
    This PR (7659) - mean (946ms)  : 907, 985
     .   : milestone, 946,
    master - mean (947ms)  : 896, 998
     .   : milestone, 947,

gantt
    title Execution time (ms) HttpMessageHandler (.NET 6) 
    dateFormat  X
    axisFormat %s
    todayMarker off
    section Bailout
    This PR (7659) - mean (271ms)  : 266, 275
     .   : milestone, 271,
    master - mean (271ms)  : 266, 275
     .   : milestone, 271,

    section Baseline
    This PR (7659) - mean (270ms)  : 264, 277
     .   : milestone, 270,
    master - mean (271ms)  : 265, 277
     .   : milestone, 271,

    section CallTarget+Inlining+NGEN
    This PR (7659) - mean (924ms)  : 876, 972
     .   : milestone, 924,
    master - mean (932ms)  : 884, 979
     .   : milestone, 932,

gantt
    title Execution time (ms) HttpMessageHandler (.NET 8) 
    dateFormat  X
    axisFormat %s
    todayMarker off
    section Bailout
    This PR (7659) - mean (271ms)  : 266, 276
     .   : milestone, 271,
    master - mean (270ms)  : 265, 276
     .   : milestone, 270,

    section Baseline
    This PR (7659) - mean (269ms)  : 265, 274
     .   : milestone, 269,
    master - mean (270ms)  : 265, 276
     .   : milestone, 270,

    section CallTarget+Inlining+NGEN
    This PR (7659) - mean (849ms)  : 830, 868
     .   : milestone, 849,
    master - mean (860ms)  : 840, 881
     .   : milestone, 860,

NachoEchevarria · 2025-10-17T09:41:17Z

tracer/src/Datadog.Trace.Tools.Runner/Datadog.Trace.Tools.Runner.csproj

    <PackageReference Include="System.Management" Version="5.0.0" />
  </ItemGroup>

+  <ItemGroup>


Error (active) CS0103 The name 'RegistryHive' does not exist in the current context Datadog.Trace.Tools.Runner (net5.0), Datadog.Trace.Tools.Runner (netcoreapp2.1), Datadog.Trace.Tools.Runner (netcoreapp2.2), Datadog.Trace.Tools.Runner (netcoreapp3.0), Datadog.Trace.Tools.Runner (netcoreapp3.1)

NachoEchevarria · 2025-10-17T12:14:30Z

tracer/test/test-applications/integrations/Samples.OpenTracing/Samples.OpenTracing.csproj

    <ProjectReference Include="..\..\..\..\src\Datadog.Trace.OpenTracing\Datadog.Trace.OpenTracing.csproj" />
    <PackageReference Include="FluentAssertions" Version="6.4.0" />
  </ItemGroup>
+


[ERR] CompileSamples: C:\Commonfolder\shared\repos\dd-trace-5\tracer\test\test-applications\integrations\Samples.OpenTracing\Program.cs(107,9): error CS0012: The type 'HttpResponseMessage' is defined in an assembly that is not referenced. You must add a reference to assembly 'System.Net.Http, Version=4.2.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'.

NachoEchevarria · 2025-10-17T13:24:54Z

.../test-applications/integrations/Samples.VersionConflict.1x/Samples.VersionConflict.1x.csproj

  </ItemGroup>
-
+
+  <ItemGroup Condition="$(TargetFramework.StartsWith('net4'))">


error CS0234: The type or namespace name 'Http' does not exist in the namespace

NachoEchevarria · 2025-10-17T15:11:58Z

tracer/test/test-applications/integrations/Samples.HotChocolate/Samples.HotChocolate.csproj

    <!-- override to remove not supported platforms -->
    <TargetFrameworks>netcoreapp3.1;net5.0;net6.0;net7.0;net8.0;net9.0;net10.0</TargetFrameworks>

    <!-- Only run older version of HotChocolate for net5.0 and netcoreapp3.1 (support dropped in version 13.*.*) -->


.NET RC2 made assembly version checks stricter for older targets like netcoreapp3.1. RC1 allowed a NuGet package (HotChocolate 12.x, built against Microsoft.Extensions.DependencyInjection.Abstractions 3.1.4.0) to override the framework’s built-in 3.1.0.0 assembly, so it compiled. RC2 now enforces the framework reference from Microsoft.AspNetCore.App, so any dependency built for 3.1.4.0 fails. Using HotChocolate 11.0.9, which was compiled against 3.1.0.0 like the framework, restores version alignment and lets netcoreapp3.1 build successfully.

datadog-official · 2025-10-17T15:53:15Z

⚠️ Tests

⚠️ Warnings

🧪 21 Tests failed

DirectlyShipsLogs from Datadog.Trace.ClrProfiler.IntegrationTests.ILoggerExtendedLoggerTests (Datadog)
Expected exit code: 0, actual exit code: 255.
DirectlyShipsLogs from Datadog.Trace.ClrProfiler.IntegrationTests.ILoggerExtendedLoggerTests (Datadog)
Expected exit code: 0, actual exit code: 255.
DirectlyShipsLogs from Datadog.Trace.ClrProfiler.IntegrationTests.ILoggerExtendedLoggerTests (Datadog)
Expected exit code: 0, actual exit code: 255.
View all

ℹ️ Info

❄️ No new flaky tests detected

_{This comment will be updated automatically if new data arrives.

🔗 Commit SHA: 99b9a69 | Docs | Was this helpful? Give us feedback!}

Update to RC2

5c0cdc4

NachoEchevarria changed the title ~~Update to RC2~~ Update to .NET RC2 Oct 15, 2025

NachoEchevarria added 2 commits October 16, 2025 17:14

Update windowsX64Pool

d73fb31

FIx short name

97c73a0

Fix error: RegistryHive

8a8603e

NachoEchevarria commented Oct 17, 2025

View reviewed changes

Fix open tracing sample error

65264c6

NachoEchevarria commented Oct 17, 2025

View reviewed changes

NachoEchevarria added 2 commits October 17, 2025 14:56

try to fix compilation error

5003cf9

Fix http error

75cf2cb

NachoEchevarria commented Oct 17, 2025

View reviewed changes

NachoEchevarria added 2 commits October 17, 2025 15:49

fix WindowsPrincipal compilation error

7bfe40e

Fix HotChocolate error

972e4c4

NachoEchevarria commented Oct 17, 2025

View reviewed changes

Fix compilation error NU1510

99b9a69

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		</ItemGroup>


		<ItemGroup Condition="$(TargetFramework.StartsWith('net4'))">

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NachoEchevarria commented Oct 15, 2025

Summary of changes

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Implementation details

Test coverage

Other details

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Execution-Time Benchmarks Report ⏱️

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