Update Testing framework to v4 by renovate[bot] · Pull Request #1649 · microsoft/vs-threading

renovate · 2026-08-22T02:58:24Z

This PR contains the following updates:

Package	Change	Age	Confidence
xunit.v3.core.mtp-v2	`3.2.2` → `4.0.1`
xunit.v3.mtp-v2	`3.2.2` → `4.0.1`

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azure-pipelines · 2026-08-22T02:58:32Z

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Pull request overview

This PR updates the centralized test runner package versions used by the repository’s xUnit v3 + Microsoft.Testing.Platform (MTP v2) setup, moving to the new major release of the xunit.v3.*mtp-v2 packages.

Changes:

Bump xunit.v3.core.mtp-v2 from 3.2.2 to 4.0.0.
Bump xunit.v3.mtp-v2 from 3.2.2 to 4.0.0.

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Copilot reviewed 1 out of 1 changed files in this pull request and generated 2 comments.

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🔵 Needs a closer look

A major-version test framework runner upgrade can introduce breaking behavioral changes that should be validated by a full test run/CI before merging.

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xUnit v4 breaks net472 test project compatibility · New
xUnit v4 is incompatible with Xunit.StaFact 3 · New
Version 4.0.0 of xunit.v3.mtp-v2 does not provide a net472 asset, but both test projects add…
Version 4.0.0 of xunit.v3.core.mtp-v2 does not provide a net472 asset, while…
These two package versions are duplicated and must remain in sync. Consider introducing a single…
These two package versions are duplicated and must remain in sync. Consider introducing a single…

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Andrew Arnott (AArnott) · 2026-09-21T22:24:35Z

/azp run

azure-pipelines · 2026-09-21T22:24:48Z

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Andrew Arnott (AArnott) · 2026-09-21T22:36:43Z

/azp run

renovate · 2026-09-21T22:36:54Z

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azure-pipelines · 2026-09-21T22:36:55Z

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🟢 Approval recommended

The dependency upgrade and configuration migration have no unresolved blocking issues.

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Resolved since last review (6)

xUnit v4 is incompatible with Xunit.StaFact 3
xUnit v4 breaks net472 test project compatibility
Version 4.0.0 of xunit.v3.mtp-v2 does not provide a net472 asset, but both test projects add…
Version 4.0.0 of xunit.v3.core.mtp-v2 does not provide a net472 asset, while…
These two package versions are duplicated and must remain in sync. Consider introducing a single…
These two package versions are duplicated and must remain in sync. Consider introducing a single…

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Update Xunit.Combinatorial to an xUnit v4-compatible release or retain xUnit v3 for affected targets.

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Update Xunit.Combinatorial for xUnit v4 compatibility · New

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Andrew Arnott (AArnott) · 2026-09-21T23:02:23Z

/azp run

azure-pipelines · 2026-09-21T23:02:36Z

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Update Xunit.Combinatorial for xUnit v4 compatibility

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Andrew Arnott (AArnott) · 2026-09-21T23:41:16Z

/azp run

azure-pipelines · 2026-09-21T23:41:29Z

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Resolved since last review (7)

Update Xunit.Combinatorial for xUnit v4 compatibility
xUnit v4 is incompatible with Xunit.StaFact 3
xUnit v4 breaks net472 test project compatibility
Version 4.0.0 of xunit.v3.mtp-v2 does not provide a net472 asset, but both test projects add…
Version 4.0.0 of xunit.v3.core.mtp-v2 does not provide a net472 asset, while…
These two package versions are duplicated and must remain in sync. Consider introducing a single…
These two package versions are duplicated and must remain in sync. Consider introducing a single…

Copilot AI lite review requested due to automatic review settings August 22, 2026 02:58

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Update Testing framework to v4

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Fix xUnit v4 parallelization configuration

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Preserve xUnit support for .NET Framework tests

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Andrew Arnott (AArnott) enabled auto-merge (squash) September 21, 2026 23:01

Update combinatorial tests for xUnit v4

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Apply xUnit v4 to all target frameworks

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