[main] .NET Source-Build 10.0.100-rc.2.25502.107 October 2025

[ellahathaway]

Manual port of #2907

[Copilot]

Pull Request Overview

This PR updates the .NET Source-Build to version 10.0.100-rc.2.25502.107 from October 2025, as a manual port of #2907. The update includes SDK and tooling version updates, standardization of Azure DevOps path variables, and related infrastructure improvements.

Key changes:

• Updated .NET SDK from 10.0.100-rc.1.25420.111 to 10.0.100-rc.2.25502.107
• Standardized Azure DevOps path variables from Build.SourcesDirectory to System.DefaultWorkingDirectory
• Updated source-built archive URLs and tooling versions

Reviewed Changes

Copilot reviewed 27 out of 53 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
global.json	Updated dotnet SDK and Arcade SDK versions to rc.2.25502.107
eng/download-source-built-archive.sh	Changed source-built artifacts URL paths
eng/common/tools.ps1	Updated vswhere version to 3.1.7 and improved download logging
eng/common/templates/job/job.yml	Replaced Build.SourcesDirectory with System.DefaultWorkingDirectory
eng/common/templates-official/variables/sdl-variables.yml	Updated GuardianPackagesConfigFile path variable
eng/common/templates-official/job/job.yml	Updated BuildDropPath default value
eng/common/template-guidance.md	Updated example path in documentation
eng/common/sdl/NuGet.config	Removed BOM character from XML declaration
eng/common/sdk-task.sh	Added --noWarnAsError flag and moved warnAsError initialization
eng/common/sdk-task.ps1	Added -noWarnAsError parameter
eng/common/generate-locproject.ps1	Added WiX v5 schema support for localization
eng/common/core-templates/steps/source-index-stage1-publish.yml	Updated source indexing tool versions and paths
eng/common/core-templates/steps/publish-logs.yml	Standardized to System.DefaultWorkingDirectory
eng/common/core-templates/steps/generate-sbom.yml	Updated default BuildDropPath
eng/common/core-templates/steps/enable-internal-sources.yml	Updated NuGet setup script paths
eng/common/core-templates/post-build/setup-maestro-vars.yml	Updated tools.ps1 path
eng/common/core-templates/post-build/post-build.yml	Updated script file paths
eng/common/core-templates/jobs/jobs.yml	Added repositoryAlias and officialBuildId parameters
eng/common/core-templates/jobs/codeql-build.yml	Updated GuardianPackagesConfigFile path
eng/common/core-templates/job/publish-build-assets.yml	Added officialBuildId support and updated paths
eng/common/core-templates/job/onelocbuild.yml	Updated default SourcesDirectory parameter
eng/common/core-templates/job/job.yml	Updated test results search folder paths
eng/common/SetupNugetSources.sh	Added .NET 10 to supported versions array
eng/common/SetupNugetSources.ps1	Added .NET 10 to supported versions array
eng/Versions.props	Updated private source-built SDK and artifacts versions
eng/Version.Details.xml	Updated Arcade SDK dependency versions and repository URIs
eng/Version.Details.props	Updated package versions and comments

---

_{Tip: Customize your code reviews with copilot-instructions.md. Create the file or learn how to get started.}

[ellahathaway]

See this comment about the newline diffs.

[ellahathaway]

FYI - this PR includes changes to 15 more files than the rebootstrap to release/10.0.1xx. This is because the manual port of #2037 to main (#2042) missed some of the updates from arcade, so this PR is including those changes as well.

[ellahathaway]

@wtgodbe - I'm seeing the following aspnetcore error:

 C:\Program Files\Microsoft Visual Studio\2022\Preview\Common7\IDE\CommonExtensions\Microsoft\NuGet\NuGet.targets(186,5): error : Cannot create a file when that file already exists. [D:\a\_work\1\s\src\aspnetcore\src\Grpc\JsonTranscoding\src\Microsoft.AspNetCore.Grpc.Swagger\Microsoft.AspNetCore.Grpc.Swagger.csproj]

Can you please advise on how to address this? Thanks in advance

[wtgodbe]

Sorry for the delay, that's a transient failure we get in aspnetcore sometimes. It's been around forever - I'm making some changes to our reference resolution logic to try to get rid of it. It should go away on retry

[ellahathaway]

@dotnet/product-construction - can I please get help merging this PR? The failures are because I created this backport manually.