[main] Source code updates from dotnet/dotnet

[dotnet-maestro]

Note

This is a codeflow update. It may contain both source code changes from
the VMR
as well as dependency updates. Learn more here.

This pull request brings the following source code changes

From https://github.com/dotnet/dotnet

• Subscription: 91fa59f1-1864-46b1-b482-87955691317c
• Build: 20260511.1 (313814)
• Date Produced: May 11, 2026 4:01:51 PM UTC
• Commit: 547c640d5626b2976499cb3433abc741a63d67c5
• Commit Diff: bf38c69...547c640
• Branch: main

Associated changes in source repos

• dotnet/arcade@a08169b...597f2e6
• dotnet/aspnetcore@11a9d22...b9c48b3
• dotnet/deployment-tools@84df736...87b9cb4
• dotnet/efcore@c0e491b...a267c3e
• dotnet/emsdk@5258a0e...92398bd
• dotnet/fsharp@a5df95f...d977e96
• 97e3065...98b9324
• dotnet/razor@83a704a...0f6925d
• dotnet/roslyn@5e5ee32...2428f0c
• dotnet/runtime@7e17692...06ca675
• dotnet/scenario-tests@7bc6a69...69ea163
• dotnet/sdk@a1f2c13...6dc6b33
• dotnet/source-build-assets@c81c75e...63c0278
• dotnet/sourcelink@6ea6adb...29e6c94
• microsoft/vstest@dde0931...72bb02e
• dotnet/winforms@2f889a2...f8d16ff
• dotnet/wpf@6eaec56...f49ca1e

Diff the source with this PR branch

darc vmr diff --name-only https://github.com/dotnet/dotnet:547c640d5626b2976499cb3433abc741a63d67c5..https://github.com/dotnet/msbuild:darc-main-74c4ed9a-e19a-4b16-bd97-8838fedba456

[JanProvaznik]

@GangWang01

1. what is the issue with xUnit and MSTestingPlatform?
2. where does that change come from in dotnet/dotnet?

[GangWang01]

@GangWang01

1. what is the issue with xUnit and MSTestingPlatform?

@JanProvaznik The change removed the version specification and it caused package version conflicts. See https://dev.azure.com/dnceng-public/public/_build/results?buildId=1416751&view=logs&j=20125c81-7edb-551b-693a-61efae016b74&t=7ce25265-aabe-59d3-d73c-06619cfcc3c4&l=80. My change restoring back the version turned out we still need it.
##[error].dotnet\sdk\10.0.107\Microsoft.Common.CurrentVersion.targets(2437,5): error MSB3277: (NETCORE_ENGINEERING_TELEMETRY=Build) Found conflicts between different versions of "Microsoft.Testing.Platform" that could not be resolved. There was a conflict between "Microsoft.Testing.Platform, Version=1.7.3.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" and "Microsoft.Testing.Platform, Version=1.8.4.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a". "Microsoft.Testing.Platform, Version=1.7.3.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" was chosen because it was primary and "Microsoft.Testing.Platform, Version=1.8.4.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" was not. References which depend on "Microsoft.Testing.Platform, Version=1.7.3.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" [D:\a\_work\1\s\.packages\microsoft.testing.platform\1.7.3\lib\netstandard2.0\Microsoft.Testing.Platform.dll].

2. where does that change come from in dotnet/dotnet?

No idea where the change is from, especially the add to src/Shared/UnitTests/TestAssemblyInfo.cs

[JanProvaznik]

@GangWang01 this kind of PR is generated based on merged changes in https://github.com/dotnet/dotnet/pulls?q=sort%3Aupdated-desc+is%3Apr+is%3Aopen

there should be a PR for it explaining the rationale. I am against reverting if we don't understand why it came to us.

[ViktorHofer]

The change was made by @agocke here. He probably didn't realize that msbuild doesn't use latest Arcade which would explain the errors.

[OvesN]

We should revert the change causing the error

[ViktorHofer]

That's not the way to go. Reverting this here will just introduce the error again on the VMR side. We need input from @agocke on how to best handle this in both worlds: VMR (arcade main) & msbuild (Arcade 10).

[ViktorHofer]

dotnet/dotnet#6604 shows the failure now again due to the revert

[OvesN]

dotnet/dotnet#6604 shows the failure now again due to the revert

@ViktorHofer
I do not know if @agocke will have time for this, so I will fix it in the VMR repo in this PR so it works for us and for VMR.