[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: a044a5f5-0173-4a27-800f-d0339ec8ba32
• Build: 20260903.3 (330293)
• Date Produced: September 3, 2026 3:35:28 PM UTC
• Commit: 48adeb744993198333dd92ee66e6f853700a0270
• Commit Diff: 732e1d0...48adeb7
• Branch: release/10.0.4xx

Updated Dependencies

• From 10.4.0-preview.26412.112 to 10.4.0-preview.26453.103
  • Microsoft.AspNetCore.Mvc.Razor.Extensions.Tooling.Internal
  • Microsoft.CodeAnalysis.Razor.Tooling.Internal
  • Microsoft.NET.Sdk.Razor.SourceGenerators.Transport
• From 18.9.8 to 18.9.14
  • Microsoft.Build
• From 18.9.8-servicing-26412-112 to 18.9.14-servicing-26453-103
  • Microsoft.Build.Localization
• From 7.9.0-rc.41312 to 7.9.0-rc.45403
  • Microsoft.Build.NuGetSdkResolver
  • NuGet.Build.Tasks
  • NuGet.Build.Tasks.Console
  • NuGet.Build.Tasks.Pack
  • NuGet.CommandLine.XPlat
  • NuGet.Commands
  • NuGet.Common
  • NuGet.Configuration
  • NuGet.Credentials
  • NuGet.DependencyResolver.Core
  • NuGet.Frameworks
  • NuGet.LibraryModel
  • NuGet.Localization
  • NuGet.Packaging
  • NuGet.ProjectModel
  • NuGet.Protocol
  • NuGet.Versioning
• From 10.0.400 to 10.0.402
  • Microsoft.Build.Tasks.Git
  • Microsoft.SourceLink.AzureRepos.Git
  • Microsoft.SourceLink.Bitbucket.Git
  • Microsoft.SourceLink.Common
  • Microsoft.SourceLink.GitHub
  • Microsoft.SourceLink.GitLab
  • Microsoft.TemplateEngine.Abstractions
  • Microsoft.TemplateEngine.Authoring.TemplateVerifier
  • Microsoft.TemplateEngine.Edge
  • Microsoft.TemplateEngine.Orchestrator.RunnableProjects
  • Microsoft.TemplateEngine.Utils
  • Microsoft.TemplateSearch.Common
• From 5.9.0-1.26412.112 to 5.9.0-1.26453.103
  • Microsoft.CodeAnalysis
  • Microsoft.CodeAnalysis.BuildClient
  • Microsoft.CodeAnalysis.CSharp
  • Microsoft.CodeAnalysis.CSharp.CodeStyle
  • Microsoft.CodeAnalysis.CSharp.Features
  • Microsoft.CodeAnalysis.CSharp.Workspaces
  • Microsoft.CodeAnalysis.ExternalAccess.HotReload
  • Microsoft.CodeAnalysis.PublicApiAnalyzers
  • Microsoft.CodeAnalysis.Workspaces.Common
  • Microsoft.CodeAnalysis.Workspaces.MSBuild
  • Microsoft.CodeAnalysis.Workspaces.MSBuild.BuildHost
  • Microsoft.Net.Compilers.Toolset
  • Microsoft.Net.Compilers.Toolset.Framework
• From 10.0.0-beta.26412.112 to 10.0.0-beta.26453.103
  • Microsoft.DotNet.Arcade.Sdk
  • Microsoft.DotNet.Build.Tasks.Installers
  • Microsoft.DotNet.Build.Tasks.Templating
  • Microsoft.DotNet.Build.Tasks.Workloads
  • Microsoft.DotNet.Helix.Sdk
  • Microsoft.DotNet.SignTool
  • Microsoft.DotNet.XliffTasks
  • Microsoft.DotNet.XUnitExtensions
• From 15.2.400-servicing.26412.112 to 15.2.402-servicing.26453.103
  • Microsoft.FSharp.Compiler
• From 18.7.0-release-26412-112 to 18.7.0-release-26453-103
  • Microsoft.NET.Test.Sdk
  • Microsoft.TestPlatform.Build
  • Microsoft.TestPlatform.CLI
• From 10.0.400-preview.26412.112 to 10.0.402-servicing.26453.103
  • Microsoft.TemplateEngine.Mocks
  • Microsoft.TemplateEngine.TestHelper
  • Microsoft.TemplateSearch.TemplateDiscovery

Associated changes in source repos

• dotnet/arcade@cc91398...8384998
• dotnet/fsharp@85903b5...a88231a
• dotnet/msbuild@cc6117b...6f12bce
• NuGet/NuGet.Client@c269b98...b7c2cb4
• dotnet/roslyn@401cb34...02b3521
• 8a8b83d...13c9652
• dotnet/source-build-assets@f7cee04...ca6744a
• dotnet/sourcelink@898dc0f...f5806ed
• dotnet/templating@8cdb39a...1fee620
• microsoft/vstest@6f58ced...3c757a2

Diff the source with this PR branch

darc vmr diff --name-only https://github.com/dotnet/dotnet:48adeb744993198333dd92ee66e6f853700a0270..https://github.com/dotnet/sdk:darc-release/10.0.4xx-87bf80ea-f8d2-4a5f-841c-58f2994871e9

[dotnet-maestro]

Note

VMR PRs included in this codeflow update:

• [release/10.0.4xx] Bump patch version to 10.0.2 dotnet#8606
• [release/10.0.4xx] Source code updates from dotnet/sdk dotnet#8859
• [release/10.0.4xx] Source code updates from dotnet/sdk dotnet#8924
• [release/10.0.4xx] Source code updates from dotnet/sdk dotnet#8935

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

[azure-pipelines]

Azure Pipelines:
Successfully started running 1 pipeline(s).
2 pipeline(s) were filtered out due to trigger conditions.
There may be pipelines that require an authorized user to comment /azp run to run.

[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 a044a5f5-0173-4a27-800f-d0339ec8ba32
  

• 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 a044a5f5-0173-4a27-800f-d0339ec8ba32 --force
  

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

[github-actions]

🔍 Build Failure Analysis

Summary — The Windows x64 TestBuild leg (3_0_TestBuild_windows_x64) failed due to a transient network error while downloading a bundled component, not a code or compilation defect.

Root cause: Transient network failure downloading bundled component

The DownloadBundledComponents target in src/Layout/redist/redist.csproj failed while the DownloadFile task was fetching a file, with the connection being aborted mid-transfer:

HttpRequestException: Error while copying content to a stream.
HttpIOException: The response ended prematurely. (ResponseEnded)

This originates from Microsoft.DotNet.Arcade.Sdk.DownloadFile.DownloadWithRetriesAsync (src/arcade/src/Microsoft.DotNet.Arcade.Sdk/src/DownloadFile.cs:184), invoked from src/Layout/redist/targets/RestoreLayout.targets:314, inside src/Layout/redist/redist.csproj. The exception stack is entirely within the .NET networking stack (HttpConnection, SslStream) — there is no indication of a source-code, dependency-version, or configuration problem in the PR.

Affected files / errors

• src/Layout/redist/targets/RestoreLayout.targets:314 — DownloadFile task in target DownloadBundledComponents (project src/Layout/redist/redist.csproj) hit HttpRequestException/HttpIOException: The response ended prematurely while downloading a file over the network.

Proposed fix

No code change is needed. This looks like an intermittent network/feed hiccup (connection reset mid-download) rather than a reproducible defect. Recommend re-running the failed leg (3_0_TestBuild_windows_x64). If it recurs consistently, it may indicate an unstable external download source used by DownloadBundledComponents, which would need investigating separately (not fixable from this PR's diff).

All other 23 build legs across macOS x64/arm64, Linux x64/arm64, Windows x64 (remaining attempts), AoT, FullFramework, and TestAsTools compiled cleanly with zero errors — this failure is isolated to a single leg/attempt.

---

Build overview (failed leg: 3_0_TestBuild_windows_x64)

Build: FAILED
Duration: 520.4s
MSBuild: 18.9.6+14fbf8d52
Projects: 188  Errors: 2  Warnings: 1

Failed projects:
  ✗ D:\a\_work\1\s\.packages\microsoft.dotnet.arcade.sdk\10.0.0-beta.26453.103	ools\Build.proj (520.2s)
  ✗ D:\a\_work\1\s\sdk.slnx (466.7s)
  ✗ D:\a\_work\1\s\src\Layout
edist
edist.csproj (396.1s)

---

_{🤖 Generated by the Build Failure Analysis workflow using (a href="(dev.azure.com/redacted) · commit 93a78d5}

🤖 Automated content by GitHub Copilot. Generated by the Build Failure Analysis workflow. · auto · 67.7 AIC · ⌖ 1.88 AIC · ⊞ 7.1K · [◷]( · ◷)

[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 a044a5f5-0173-4a27-800f-d0339ec8ba32
  

• 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 a044a5f5-0173-4a27-800f-d0339ec8ba32 --force
  

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