[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: 20260105.2 (296040)
• Date Produced: January 6, 2026 12:20:56 AM UTC
• Commit: fb2e783fa530d337a56ef5c528a2807b7d63e46d
• Commit Diff: 5a69737...fb2e783
• Branch: main

Associated changes in source repos

• dotnet/arcade@1c09acb...47a8a69
• dotnet/aspnetcore@70d8511...1b7269e
• dotnet/deployment-tools@56c3d96...6ebef72
• dotnet/efcore@9a86835...5a68c09
• dotnet/emsdk@f8b8587...36e24b2
• dotnet/fsharp@3686818...6396a18
• 228caa1...9263fe6
• NuGet/NuGet.Client@56f4657...cc8f616
• dotnet/roslyn@a01d6a0...bf35fe5
• dotnet/runtime@8eb90a6...bce6119
• dotnet/sdk@65384c6...ec5f7d9
• dotnet/source-build-reference-packages@d6738f1...a6113e0
• dotnet/sourcelink@c84e22b...d656e7b
• dotnet/templating@41ef93a...413680c
• microsoft/vstest@154e8ba...bbee830
• dotnet/winforms@1a8c138...01eefd4
• dotnet/wpf@6e486f4...37b9597

Diff the source with this PR branch

darc vmr diff --name-only https://github.com/dotnet/dotnet:fb2e783fa530d337a56ef5c528a2807b7d63e46d..https://github.com/dotnet/msbuild:darc-main-2911e53d-2584-4f82-bc52-e50ddaf06f9c

[dotnet-maestro]

Important

The source repository has received code changes from an opposite flow. Any additional codeflows into this PR may potentially result in lost changes.

Please continue with one of the following options:

1. Close or merge this PR and let the codeflow continue normally
2. Close or merge this PR and receive the new codeflow immediately by triggering the subscription:
   darc trigger-subscriptions --id 91fa59f1-1864-46b1-b482-87955691317c
3. Force-flow new changes into this PR at your own risk (some PR commits might be reverted):
   darc trigger-subscriptions --force --id 91fa59f1-1864-46b1-b482-87955691317c

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