[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: 81d064a4-929c-4152-b746-ee3acc24b4ed
• Build: 20260904.16 (330639)
• Date Produced: September 5, 2026 8:49:03 AM UTC
• Commit: a1bf0fa0dcff2d0f8aacf9da778f3f8c0c629221
• Commit Diff: 3c8d132...a1bf0fa
• Branch: main

Updated Dependencies

• From 11.0.0-beta.26453.118 to 11.0.0-beta.26454.116
  • Microsoft.DotNet.Arcade.Sdk
  • Microsoft.DotNet.Build.Tasks.Templating
  • Microsoft.DotNet.CMake.Sdk
  • Microsoft.DotNet.GenFacades
  • Microsoft.DotNet.Helix.Sdk
  • Microsoft.DotNet.RemoteExecutor
  • Microsoft.DotNet.XUnitV3Extensions
• From 11.0.0-rc.1.26453.118 to 12.0.0-alpha.1.26454.116
  • Microsoft.NET.Sdk.IL
  • Microsoft.NETCore.App.Ref
  • Microsoft.NETCore.ILAsm
  • Microsoft.NETCore.ILDAsm
  • Microsoft.Win32.SystemEvents
  • runtime.win-x64.Microsoft.NETCore.ILAsm
  • runtime.win-x86.Microsoft.NETCore.ILAsm
  • System.CodeDom
  • System.Configuration.ConfigurationManager
  • System.Diagnostics.DiagnosticSource
  • System.Formats.Nrbf
  • System.IO.Hashing
  • System.Reflection.MetadataLoadContext
  • System.Resources.Extensions
  • System.Runtime.Serialization.Formatters
  • System.Text.Encodings.Web
  • System.Text.Json
  • System.Windows.Extensions

Associated changes in source repos

• dotnet/arcade@059e568...945f379
• dotnet/efcore@6828689...48ebeec
• dotnet/fsharp@a29233c...df0e609
• dotnet/msbuild@cb5c9d7...fcb368d
• dotnet/roslyn@5e194b4...0e119d1
• dotnet/runtime@8d1b156...25f20c2
• dotnet/sdk@d6b25e1...ed8295c
• dotnet/source-build-assets@ee99bdb...5a9ef76
• microsoft/vstest@93ce2f7...335971c
• dotnet/wpf@1cfc37f...fc9b54a

Diff the source with this PR branch

darc vmr diff --name-only https://github.com/dotnet/dotnet:a1bf0fa0dcff2d0f8aacf9da778f3f8c0c629221..https://github.com/dotnet/winforms:darc-main-ff4d7573-fbdc-4126-9856-14f7628b53b5

Microsoft Reviewers: Open in CodeFlow

[dotnet-maestro]

Note

VMR PRs included in this codeflow update:

• [main] Initialize .NET 12 branding dotnet#8312

💡 You may consult the FAQ for more information or tag @dotnet/prodconsvcs for assistance.

[dotnet-policy-service]

Go, you big red fire engine!

[dotnet-maestro]

Important

While this PR was open, the source repository has received code changes from this repository (an opposite codeflow merged).
To avoid complex conflicts, the codeflow cannot continue until this PR is closed or merged.

You can continue with one of the following options:

• Ignore this and merge this PR as usual without waiting for the new changes.
  Once merged, Maestro will create a new codeflow PR with the new changes.
• Close this PR and wait for Maestro to open a new one with old and new changes included.
  You will lose any manual changes made in this PR.
  You can also manually trigger the new codeflow right away by running:

  darc trigger-subscriptions --id 81d064a4-929c-4152-b746-ee3acc24b4ed
  

• Force a codeflow into this PR at your own risk if you want the new changes.
  User commits made to this PR might be reverted.

  darc trigger-subscriptions --id 81d064a4-929c-4152-b746-ee3acc24b4ed --force
  

💡 You may consult the FAQ for more information or tag @dotnet/prodconsvcs for assistance.

[dotnet-maestro]

Important

While this PR was open, the source repository has received code changes from this repository (an opposite codeflow merged).
To avoid complex conflicts, the codeflow cannot continue until this PR is closed or merged.

You can continue with one of the following options:

• Ignore this and merge this PR as usual without waiting for the new changes.
  Once merged, Maestro will create a new codeflow PR with the new changes.
• Close this PR and wait for Maestro to open a new one with old and new changes included.
  You will lose any manual changes made in this PR.
  You can also manually trigger the new codeflow right away by running:

  darc trigger-subscriptions --id 81d064a4-929c-4152-b746-ee3acc24b4ed
  

• Force a codeflow into this PR at your own risk if you want the new changes.
  User commits made to this PR might be reverted.

  darc trigger-subscriptions --id 81d064a4-929c-4152-b746-ee3acc24b4ed --force
  

💡 You may consult the FAQ for more information or tag @dotnet/prodconsvcs for assistance.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 37.24166%. Comparing base (b0a7c95) to head (43340e1).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@              Coverage Diff              @@
##                main      #15047   +/-   ##
=============================================
  Coverage   37.24166%   37.24166%           
=============================================
  Files            246         246           
  Lines           9774        9774           
  Branches        1029        1029           
=============================================
  Hits            3640        3640           
  Misses          5970        5970           
  Partials         164         164           

Flag	Coverage Δ
Debug	37.24166% <ø> (ø)
production	39.36526% <ø> (ø)
test	20.64923% <ø> (ø)
unit	39.36526% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.

[KlausLoeffelmann]

Looks good!