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This PR contains the following updates:

Package Type Update Change
Polyfill nuget patch 9.0.0 -> 9.0.1

Configuration

📅 Schedule: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined).

🚦 Automerge: Enabled.

Rebasing: Whenever PR is behind base branch, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.


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This PR has been generated by Renovate Bot.

@thomhurst thomhurst added dependencies Pull requests that update a dependency file PATCH renovate-bot labels Nov 12, 2025
@thomhurst thomhurst enabled auto-merge (squash) November 12, 2025 00:27
@claude
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claude bot commented Nov 12, 2025

Claude finished @thomhurst's task —— View job


PR Review: Polyfill Dependency Update

Reviewing this Renovate dependency update from polyfill 9.0.0 → 9.0.1.

Review Tasks

  • Read and analyze the changed file
  • Review TUnit project guidelines
  • Research the Polyfill package and version changes
  • Assess impact and compatibility
  • Provide comprehensive review feedback

Analysis

File Modified: /TUnit.Core/TUnit.Core.targets - Line 11 version update
Change: <_TUnitPolyfillVersion>9.0.1</_TUnitPolyfillVersion> (was 9.0.0)

Context: This is a build targets file that conditionally includes the Polyfill package for .NET Standard 2.0/2.1 and .NET Framework projects to provide modern .NET APIs as polyfills.

Previous Updates: The polyfill was recently updated from 8.9.1 → 9.0.0 in commit c265d8c (earlier today), and now 9.0.0 → 9.0.1.

Code Review Feedback

Approval - This is a safe dependency update

Code Quality: ⭐⭐⭐⭐⭐ Excellent

  • Clean, minimal change with proper versioning
  • Follows established patterns in TUnit's build configuration
  • Auto-generated by Renovate with proper update practices

Security: ✅ No concerns

  • Patch version update (9.0.0 → 9.0.1) - typically only bug fixes
  • Polyfill package is from Simon Cropp, a trusted .NET community maintainer
  • Package only provides compile-time APIs, excluded from runtime (<ExcludeAssets>runtime</ExcludeAssets>)

Performance: ✅ No impact expected

  • Polyfill package has <PrivateAssets>all</PrivateAssets> - compile-time only
  • No runtime performance impact
  • Only affects .NET Standard 2.0/2.1 and .NET Framework builds

Testing: ⚠️ Recommendation

  • While this is likely safe, I recommend running the test suite before merge
  • Cannot execute tests without approval, but this should be done in CI

Compatibility: ✅ High confidence

  • Patch version updates typically maintain full backward compatibility
  • TUnit's polyfill usage is through conditional compilation (based on _TUnitNeedsPolyfill)
  • Package is only included for older target frameworks that need modern API polyfills

Implementation Notes

Polyfill Usage in TUnit:

  • Only conditionally included for netstandard2.0, netstandard2.1, and .NET Framework
  • Used to enable modern .NET APIs in source generators and analyzers
  • Can be disabled with <EnableTUnitPolyfills>false</EnableTUnitPolyfills>
  • Follows TUnit's architectural principle of supporting older frameworks

Build Configuration:

  • Properly handles both CPM (Central Package Management) and non-CPM projects
  • Includes helpful validation warning if package isn't available
  • Clean separation of concerns in the build targets file

Recommendation

✅ APPROVE for merge - This is a standard, low-risk dependency update that should be safe to merge with automerge enabled.

Why this is safe:

  1. Patch version - Only bug fixes, no breaking changes expected
  2. Trusted source - Simon Cropp is a well-known .NET maintainer
  3. Compile-time only - No runtime impact
  4. Conditional usage - Only affects older target frameworks
  5. Recent v9 update - Major version already tested (from 8.9.1 → 9.0.0)

@thomhurst thomhurst disabled auto-merge November 12, 2025 00:36
@thomhurst thomhurst merged commit 3fadbda into main Nov 12, 2025
12 of 13 checks passed
@thomhurst thomhurst deleted the renovate/_tunitpolyfillversion branch November 12, 2025 00:36
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3 participants