chore(deps): update dependency microsoft.build.utilities.core to v18

[thomhurst]

This PR contains the following updates:

Package	Type	Update	Change
Microsoft.Build.Utilities.Core (source)	nuget	major	17.14.28 -> 18.0.2

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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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• If you want to rebase/retry this PR, check this box

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This PR has been generated by Renovate Bot.

[claude]

Claude finished @thomhurst's task —— View job

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PR Review: Microsoft.Build.Utilities.Core v18 Update

✅ Review Complete

Change Summary:

• Updates Microsoft.Build.Utilities.Core from 17.14.28 → 18.0.2 in Directory.Packages.props
• This is a major version update (v17 → v18)

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📋 Analysis Results

Code Quality & Best Practices: ✅ GOOD

• Uses centralized package management via Directory.Packages.props - excellent practice
• Version pinning prevents transitive dependency conflicts
• Clean, minimal change scope

Potential Issues: ⚠️ LOW RISK

Root Cause Identified:

• No direct usage of Microsoft.Build.Utilities.Core APIs in the codebase
• This is a transitive dependency from Microsoft.Testing.Platform.MSBuild (referenced in TUnit.Engine.csproj:37)
• The explicit version in Directory.Packages.props provides version control over the transitive dependency

Major Version Implications:

• v18 aligns with .NET 9/.NET Core and Visual Studio 2022 v17.12+
• Microsoft.Build v18 includes breaking changes, but since TUnit doesn't directly consume MSBuild APIs, impact should be minimal
• The consuming package (Microsoft.Testing.Platform.MSBuild) should handle compatibility

Performance Considerations: ✅ NEUTRAL

• No performance impact expected
• MSBuild utilities are only used during build/test execution, not runtime

Security Concerns: ✅ NONE IDENTIFIED

• Microsoft.Build.Utilities.Core is a well-maintained Microsoft package
• No security-sensitive code changes in this update
• Dependency comes from trusted Microsoft Testing Platform

Test Coverage: ⚠️ RECOMMENDED VERIFICATION

Missing Verification:

• Build process should be tested to ensure MSBuild compatibility
• Recommend running full test suite to verify Microsoft.Testing.Platform.MSBuild compatibility with v18

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🎯 Recommendation: APPROVE WITH TESTING

This dependency update appears safe because:

1. No Direct Usage: TUnit doesn't directly use MSBuild APIs
2. Managed Dependency: Version controlled via Directory.Packages.props
3. Trusted Source: Microsoft Testing Platform should handle compatibility
4. Renovate Confidence: Bot detected this as safe for automerge

Before Merge:

• ✅ Verify CI/CD builds pass
• ✅ Run test suite to ensure no regressions
• ✅ Confirm Microsoft.Testing.Platform.MSBuild is compatible with MSBuild v18

Low Risk Factors:

• Well-established dependency update pattern in this repository
• Microsoft maintains backward compatibility in testing tools
• Centralized dependency management reduces conflict risk

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🔄 Alternative Actions

• If issues arise: Revert to 17.14.28 and wait for Microsoft.Testing.Platform.MSBuild to officially support v18
• If tests pass: Safe to merge

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