[release/8.0] Remove package baseline infrastructure by Copilot · Pull Request #65209 · dotnet/aspnetcore

Copilot · 2026-01-23T18:18:50Z

Backport of #64337 to release/8.0 - removes unused package baseline validation and generation tooling.

Description

Package baseline infrastructure was designed to prevent dependency version regressions in servicing builds. The code path is no longer executed, making it dead code.

Removed:

eng/Baseline.Designer.props (8.0.21 version definitions)
eng/Baseline.xml (baseline configuration)
eng/tools/BaselineGenerator/ (generation tool)

Updated:

Directory.Build.targets - removed baseline import and BaselinePackageVersion logic
eng/targets/ResolveReferences.targets - removed BaselinePackageReference resolution and validation
eng/targets/Packaging.targets - removed EnsureBaselineIsUpdated target
AspNetCore.sln - removed BaselineGenerator project references
eng/scripts/CodeCheck.ps1 - removed baseline regeneration step
src/Components/Components/src/*.csproj - removed SuppressBaselineReference items
Documentation updates (PreparingPatchUpdates.md, ReferenceResolution.md, UpdatingMajorVersionAndTFM.md)

Customer Impact

None. Internal build infrastructure cleanup only.

Regression?

Yes
No

Risk

High
Medium
Low

Removing dead code that never executes. Validated with successful C# project builds (Http.Abstractions, Components).

Verification

Manual (required)
Automated

Packaging changes reviewed?

Yes
No
N/A

Baseline validation/generation is removed from build process.

When servicing release/2.1

Make necessary changes in eng/PatchConfig.props

Original prompt

Backport the changes from PR #64337 ([release/10.0] Get rid of package baseline) in dotnet/aspnetcore to the release/8.0 branch.

Context:

Original PR: [release/10.0] Get rid of package baseline #64337

Intent: Remove the package baseline in release/8.0 in the same manner as was done for release/10.0.

Requirements:

Cherry-pick or reapply the commits from PR [release/10.0] Get rid of package baseline #64337 onto release/8.0, resolving any conflicts appropriately for the 8.0 codebase.

Ensure any version-specific paths, package names, or baseline configurations that differ in 8.0 are handled correctly.

Build and run tests to verify there are no regressions.

Update any documentation or configs if the package baseline removal affects them.

Prepare a PR targeting release/8.0 with a clear description including links to the original PR and a summary of changes.

PR description should include:

"Backport of [release/10.0] Get rid of package baseline #64337 to release/8.0"

Notes on any differences from the 10.0 change, if applicable.

Validation steps performed.

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Co-authored-by: wtgodbe <14283640+wtgodbe@users.noreply.github.com>

Copilot

Pull request overview

This PR backports changes from release/10.0 (#64337) to remove the unused package baseline validation and generation infrastructure from release/8.0. The baseline infrastructure was originally designed to prevent dependency version regressions in servicing builds but is no longer executed, making it dead code.

Changes:

Removed baseline configuration files (Baseline.xml, Baseline.Designer.props) and the BaselineGenerator tool
Cleaned up MSBuild targets to remove baseline validation, reference resolution, and version logic
Updated project files and scripts to remove baseline references and generation steps
Updated documentation to remove instructions for baseline maintenance

Reviewed changes

Copilot reviewed 17 out of 17 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
eng/Baseline.xml	Deleted baseline configuration with version 8.0.21 package definitions
eng/Baseline.Designer.props	Deleted generated MSBuild properties file (998 lines) with baseline package versions and references
eng/tools/BaselineGenerator/.	Deleted complete baseline generation tool (README, Program.cs, .csproj)
eng/targets/ResolveReferences.targets	Removed BaselinePackageReference resolution logic and validation warnings/errors
eng/targets/Packaging.targets	Removed EnsureBaselineIsUpdated validation target
Directory.Build.targets	Removed Baseline.Designer.props import and BaselinePackageVersion-based versioning logic
eng/scripts/CodeCheck.ps1	Removed baseline regeneration step from code check script
eng/Versions.props	Removed ValidateBaseline property
eng/Dependencies.props	Removed comment references to BaselinePackageReference
AspNetCore.sln	Removed BaselineGenerator project and configuration
eng/tools/tools.slnf	Removed BaselineGenerator project reference
src/Components/Components/src/Microsoft.AspNetCore.Components.csproj	Removed SuppressBaselineReference item group with comments
docs/PreparingPatchUpdates.md	Removed instructions to update package baselines
docs/ReferenceResolution.md	Removed baseline-related documentation and examples
docs/UpdatingMajorVersionAndTFM.md	Removed baseline update instructions

Updated [Microsoft.AspNetCore.Mvc.Testing](https://github.com/dotnet/aspnetcore) from 8.0.24 to 8.0.25. <details> <summary>Release notes</summary> _Sourced from [Microsoft.AspNetCore.Mvc.Testing's releases](https://github.com/dotnet/aspnetcore/releases)._ ## 8.0.25 [Release](https://github.com/dotnet/core/releases/tag/v8.0.25) ## What's Changed * Update branding to 8.0.25 by @vseanreesermsft in dotnet/aspnetcore#65293 * [release/8.0] (deps): Bump src/submodules/googletest from `9156d4c` to `56efe39` by @dependabot[bot] in dotnet/aspnetcore#65289 * [release/8.0] Add support for hotfix branding by @mmitche in dotnet/aspnetcore#65252 * [release/8.0] Remove package baseline infrastructure by @Copilot in dotnet/aspnetcore#65209 * [release/8.0] Set network isolation policy for aspnetcore-ci by @github-actions[bot] in dotnet/aspnetcore#65173 * [release/8.0] Fix URL format for JDK download on linux by @github-actions[bot] in dotnet/aspnetcore#65076 * [release/8.0] Disable parallel restore for Grpc JsonTranscoding by @github-actions[bot] in dotnet/aspnetcore#65073 * [release/8.0] Update Ubuntu queue to 22.04 by @github-actions[bot] in dotnet/aspnetcore#65299 * [release/8.0] Re-enable Nuget Audit by @wtgodbe in dotnet/aspnetcore#65328 * [release/8.0] Don't use netcoreapp2.1 in dotnet-getdocument by @wtgodbe in dotnet/aspnetcore#65331 * [release/8.0] Update AzureIdentityVersion to 1.11.4 by @wtgodbe in dotnet/aspnetcore#65332 * [release/8.0] Disable parallel restore for linker tests by @wtgodbe in dotnet/aspnetcore#65375 * Merging internal commits for release/8.0 by @vseanreesermsft in dotnet/aspnetcore#65382 * [release/8.0] Switch to non-preview 2022 queue by @github-actions[bot] in dotnet/aspnetcore#65413 **Full Changelog**: dotnet/aspnetcore@v8.0.24...v8.0.25 Commits viewable in [compare view](dotnet/aspnetcore@v8.0.24...v8.0.25). </details> [![Dependabot compatibility score](https://dependabot-badges.githubapp.com/badges/compatibility_score?dependency-name=Microsoft.AspNetCore.Mvc.Testing&package-manager=nuget&previous-version=8.0.24&new-version=8.0.25)](https://docs.github.com/en/github/managing-security-vulnerabilities/about-dependabot-security-updates#about-compatibility-scores) Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting `@dependabot rebase`. [//]: # (dependabot-automerge-start) [//]: # (dependabot-automerge-end) --- <details> <summary>Dependabot commands and options</summary> <br /> You can trigger Dependabot actions by commenting on this PR: - `@dependabot rebase` will rebase this PR - `@dependabot recreate` will recreate this PR, overwriting any edits that have been made to it - `@dependabot show <dependency name> ignore conditions` will show all of the ignore conditions of the specified dependency - `@dependabot ignore this major version` will close this PR and stop Dependabot creating any more for this major version (unless you reopen the PR or upgrade to it yourself) - `@dependabot ignore this minor version` will close this PR and stop Dependabot creating any more for this minor version (unless you reopen the PR or upgrade to it yourself) - `@dependabot ignore this dependency` will close this PR and stop Dependabot creating any more for this dependency (unless you reopen the PR or upgrade to it yourself) </details> Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Updated [Microsoft.AspNetCore.OpenApi](https://github.com/dotnet/aspnetcore) from 8.0.24 to 8.0.25. <details> <summary>Release notes</summary> _Sourced from [Microsoft.AspNetCore.OpenApi's releases](https://github.com/dotnet/aspnetcore/releases)._ ## 8.0.25 [Release](https://github.com/dotnet/core/releases/tag/v8.0.25) ## What's Changed * Update branding to 8.0.25 by @vseanreesermsft in dotnet/aspnetcore#65293 * [release/8.0] (deps): Bump src/submodules/googletest from `9156d4c` to `56efe39` by @dependabot[bot] in dotnet/aspnetcore#65289 * [release/8.0] Add support for hotfix branding by @mmitche in dotnet/aspnetcore#65252 * [release/8.0] Remove package baseline infrastructure by @Copilot in dotnet/aspnetcore#65209 * [release/8.0] Set network isolation policy for aspnetcore-ci by @github-actions[bot] in dotnet/aspnetcore#65173 * [release/8.0] Fix URL format for JDK download on linux by @github-actions[bot] in dotnet/aspnetcore#65076 * [release/8.0] Disable parallel restore for Grpc JsonTranscoding by @github-actions[bot] in dotnet/aspnetcore#65073 * [release/8.0] Update Ubuntu queue to 22.04 by @github-actions[bot] in dotnet/aspnetcore#65299 * [release/8.0] Re-enable Nuget Audit by @wtgodbe in dotnet/aspnetcore#65328 * [release/8.0] Don't use netcoreapp2.1 in dotnet-getdocument by @wtgodbe in dotnet/aspnetcore#65331 * [release/8.0] Update AzureIdentityVersion to 1.11.4 by @wtgodbe in dotnet/aspnetcore#65332 * [release/8.0] Disable parallel restore for linker tests by @wtgodbe in dotnet/aspnetcore#65375 * Merging internal commits for release/8.0 by @vseanreesermsft in dotnet/aspnetcore#65382 * [release/8.0] Switch to non-preview 2022 queue by @github-actions[bot] in dotnet/aspnetcore#65413 **Full Changelog**: dotnet/aspnetcore@v8.0.24...v8.0.25 Commits viewable in [compare view](dotnet/aspnetcore@v8.0.24...v8.0.25). </details> [![Dependabot compatibility score](https://dependabot-badges.githubapp.com/badges/compatibility_score?dependency-name=Microsoft.AspNetCore.OpenApi&package-manager=nuget&previous-version=8.0.24&new-version=8.0.25)](https://docs.github.com/en/github/managing-security-vulnerabilities/about-dependabot-security-updates#about-compatibility-scores) Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting `@dependabot rebase`. [//]: # (dependabot-automerge-start) [//]: # (dependabot-automerge-end) --- <details> <summary>Dependabot commands and options</summary> <br /> You can trigger Dependabot actions by commenting on this PR: - `@dependabot rebase` will rebase this PR - `@dependabot recreate` will recreate this PR, overwriting any edits that have been made to it - `@dependabot show <dependency name> ignore conditions` will show all of the ignore conditions of the specified dependency - `@dependabot ignore this major version` will close this PR and stop Dependabot creating any more for this major version (unless you reopen the PR or upgrade to it yourself) - `@dependabot ignore this minor version` will close this PR and stop Dependabot creating any more for this minor version (unless you reopen the PR or upgrade to it yourself) - `@dependabot ignore this dependency` will close this PR and stop Dependabot creating any more for this dependency (unless you reopen the PR or upgrade to it yourself) </details> Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

#143) Updated [Microsoft.AspNetCore.Components.WebAssembly](https://github.com/dotnet/aspnetcore) from 8.0.24 to 8.0.25. <details> <summary>Release notes</summary> _Sourced from [Microsoft.AspNetCore.Components.WebAssembly's releases](https://github.com/dotnet/aspnetcore/releases)._ ## 8.0.25 [Release](https://github.com/dotnet/core/releases/tag/v8.0.25) ## What's Changed * Update branding to 8.0.25 by @vseanreesermsft in dotnet/aspnetcore#65293 * [release/8.0] (deps): Bump src/submodules/googletest from `9156d4c` to `56efe39` by @dependabot[bot] in dotnet/aspnetcore#65289 * [release/8.0] Add support for hotfix branding by @mmitche in dotnet/aspnetcore#65252 * [release/8.0] Remove package baseline infrastructure by @Copilot in dotnet/aspnetcore#65209 * [release/8.0] Set network isolation policy for aspnetcore-ci by @github-actions[bot] in dotnet/aspnetcore#65173 * [release/8.0] Fix URL format for JDK download on linux by @github-actions[bot] in dotnet/aspnetcore#65076 * [release/8.0] Disable parallel restore for Grpc JsonTranscoding by @github-actions[bot] in dotnet/aspnetcore#65073 * [release/8.0] Update Ubuntu queue to 22.04 by @github-actions[bot] in dotnet/aspnetcore#65299 * [release/8.0] Re-enable Nuget Audit by @wtgodbe in dotnet/aspnetcore#65328 * [release/8.0] Don't use netcoreapp2.1 in dotnet-getdocument by @wtgodbe in dotnet/aspnetcore#65331 * [release/8.0] Update AzureIdentityVersion to 1.11.4 by @wtgodbe in dotnet/aspnetcore#65332 * [release/8.0] Disable parallel restore for linker tests by @wtgodbe in dotnet/aspnetcore#65375 * Merging internal commits for release/8.0 by @vseanreesermsft in dotnet/aspnetcore#65382 * [release/8.0] Switch to non-preview 2022 queue by @github-actions[bot] in dotnet/aspnetcore#65413 **Full Changelog**: dotnet/aspnetcore@v8.0.24...v8.0.25 Commits viewable in [compare view](dotnet/aspnetcore@v8.0.24...v8.0.25). </details> [![Dependabot compatibility score](https://dependabot-badges.githubapp.com/badges/compatibility_score?dependency-name=Microsoft.AspNetCore.Components.WebAssembly&package-manager=nuget&previous-version=8.0.24&new-version=8.0.25)](https://docs.github.com/en/github/managing-security-vulnerabilities/about-dependabot-security-updates#about-compatibility-scores) Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting `@dependabot rebase`. [//]: # (dependabot-automerge-start) [//]: # (dependabot-automerge-end) --- <details> <summary>Dependabot commands and options</summary> <br /> You can trigger Dependabot actions by commenting on this PR: - `@dependabot rebase` will rebase this PR - `@dependabot recreate` will recreate this PR, overwriting any edits that have been made to it - `@dependabot show <dependency name> ignore conditions` will show all of the ignore conditions of the specified dependency - `@dependabot ignore this major version` will close this PR and stop Dependabot creating any more for this major version (unless you reopen the PR or upgrade to it yourself) - `@dependabot ignore this minor version` will close this PR and stop Dependabot creating any more for this minor version (unless you reopen the PR or upgrade to it yourself) - `@dependabot ignore this dependency` will close this PR and stop Dependabot creating any more for this dependency (unless you reopen the PR or upgrade to it yourself) </details> Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Initial plan

76e540e

Copilot AI assigned Copilot and wtgodbe Jan 23, 2026

Copilot started work on behalf of wtgodbe January 23, 2026 18:19 View session

dotnet-policy-service bot added this to the 8.0.x milestone Jan 23, 2026

Remove package baseline files and related logic

74b09c3

Co-authored-by: wtgodbe <14283640+wtgodbe@users.noreply.github.com>

Copilot AI changed the title ~~[WIP] Backport package baseline removal from PR #64337 to release/8.0~~ [release/8.0] Remove package baseline infrastructure Jan 23, 2026

Copilot AI requested a review from wtgodbe January 23, 2026 18:41

Copilot finished work on behalf of wtgodbe January 23, 2026 18:41

wtgodbe marked this pull request as ready for review January 23, 2026 22:34

wtgodbe requested review from a team, captainsafia and dotnet-maestro-bot as code owners January 23, 2026 22:34

Copilot AI review requested due to automatic review settings January 23, 2026 22:34

wtgodbe added the tell-mode Indicates a PR which is being merged during tell-mode label Jan 23, 2026

Copilot started reviewing on behalf of wtgodbe January 23, 2026 22:34 View session

Copilot AI reviewed Jan 23, 2026

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akoeplinger approved these changes Jan 26, 2026

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dotnet-policy-service bot added the pending-ci-rerun When assigned to a PR indicates that the CI checks should be rerun label Feb 2, 2026

wtgodbe merged commit 4da4651 into release/8.0 Feb 2, 2026
29 of 31 checks passed

wtgodbe deleted the copilot/backport-package-baseline-removal branch February 2, 2026 20:56

wtgodbe removed the pending-ci-rerun When assigned to a PR indicates that the CI checks should be rerun label Feb 2, 2026

dotnet-policy-service bot modified the milestones: 8.0.x, 8.0.25 Feb 2, 2026

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[release/8.0] Remove package baseline infrastructure#65209

[release/8.0] Remove package baseline infrastructure#65209
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Copilot AI commented Jan 23, 2026 •

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Description

Customer Impact

Regression?

Risk

Verification

Packaging changes reviewed?

When servicing release/2.1

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Copilot AI commented Jan 23, 2026 •

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