microsoft/vstest v18.6.0

v18.6.0

Repository: microsoft/vstest

Tag: v18.6.0

Published: 2026-05-26T18:47:06Z

Prerelease: no

Release notes:

What's Changed

• Revert removal of Video Recorder by @nohwnd in https://github.com/microsoft/vstest/pull/15336
• Speed up blame by filtering non-.NET processes from dump collection by @nohwnd in https://github.com/microsoft/vstest/pull/15518
• Add README.md to NuGet packages by @nohwnd in https://github.com/microsoft/vstest/pull/15550
• Report child process info on connection timeout by @nohwnd in https://github.com/microsoft/vstest/pull/15603

Changes to tests and infra

• Brand as 18.6 by @nohwnd in https://github.com/microsoft/vstest/pull/15423
• Upgrading code coverage version to 18.5.1, by @fhnaseer in https://github.com/microsoft/vstest/pull/15422
• Updating System.Collections.Immutable to 9.0.11 by @MSLukeWest in https://github.com/microsoft/vstest/pull/15425
• Fix attachVS when used for debugging integration tests by @nohwnd in https://github.com/microsoft/vstest/pull/15451
• Replace dotnet.config, with global.json by @nohwnd in https://github.com/microsoft/vstest/pull/15449
• Document debugging integration tests with AttachVS by @Copilot in https://github.com/microsoft/vstest/pull/15452
• Fix stack overflow tests by @nohwnd in https://github.com/microsoft/vstest/pull/15461
• Make TestAssets.sln buildable locally by @Youssef1313 in https://github.com/microsoft/vstest/pull/15466
• Try filtering out tests by @nohwnd in https://github.com/microsoft/vstest/pull/15463
• Build just once when tfms run in parallel by @nohwnd in https://github.com/microsoft/vstest/pull/15465
• Review simplify compatibility sources, deduplicate tests by @nohwnd in https://github.com/microsoft/vstest/pull/15472
• Cleanup dead TRX code by @Youssef1313 in https://github.com/microsoft/vstest/pull/15474
• Update .NET runtimes to 8.0.25, 9.0.14, and 10.0.4 by @nohwnd in https://github.com/microsoft/vstest/pull/15481
• Compat matrix checker by @nohwnd in https://github.com/microsoft/vstest/pull/15480
• Add trx analysis skill by @nohwnd in https://github.com/microsoft/vstest/pull/15486
• Split integration tests to single tfm and multi tfm project by @nohwnd in https://github.com/microsoft/vstest/pull/15484
• Update matrix by @nohwnd in https://github.com/microsoft/vstest/pull/15477
• Break infinite restore loop in VS by @nohwnd in https://github.com/microsoft/vstest/pull/15503
• Use global package cache for build, and local for running integration tests by @nohwnd in https://github.com/microsoft/vstest/pull/15500
• Update contributing by @nohwnd in https://github.com/microsoft/vstest/pull/15505
• Reduce test wall-clock time by increasing minThreads by @drognanar in https://github.com/microsoft/vstest/pull/15502
• Indicator flakiness by @nohwnd in https://github.com/microsoft/vstest/pull/15513
• Fix ci build by @nohwnd in https://github.com/microsoft/vstest/pull/15515
• Fix thread safety issues by @Evangelink in https://github.com/microsoft/vstest/pull/15512
• Optimize DotnetSDKSimulation_PostProcessing test (163s → 61s) by @nohwnd in https://github.com/microsoft/vstest/pull/15516
• Build isolated test assets for single TFM instead of 7 by @nohwnd in https://github.com/microsoft/vstest/pull/15517
• Remove unused dependencies from Library.IntegrationTests by @nohwnd in https://github.com/microsoft/vstest/pull/15527
• Remove printing _attachments content to console by @nohwnd in https://github.com/microsoft/vstest/pull/15520
• Add Linux/macOS test filtering guide to CONTRIBUTING.md by @nohwnd in https://github.com/microsoft/vstest/pull/15521
• Change integration test parallelization from ClassLevel to MethodLevel by @nohwnd in https://github.com/microsoft/vstest/pull/15526
• Unify target framework checks with IsNetFrameworkTarget/IsNetTarget by @nohwnd in https://github.com/microsoft/vstest/pull/15523
• Add unattended work instructions to copilot-instructions.md by @nohwnd in https://github.com/microsoft/vstest/pull/15531
• Reduce code style rule severity from warning to suggestion by @nohwnd in https://github.com/microsoft/vstest/pull/15522
• Remove Debug/Release line number branching from tests by @nohwnd in https://github.com/microsoft/vstest/pull/15519
• Revise unattended work instructions in copilot-instructions.md by @nohwnd in https://github.com/microsoft/vstest/pull/15532
• Improve CompatibilityRowsBuilder error message with diagnostic details by @nohwnd in https://github.com/microsoft/vstest/pull/15529
• docs: add git worktree and upstream sync workflow to copilot-instructions.md by @nohwnd in https://github.com/microsoft/vstest/pull/15538
• Add VSIX runner to smoke tests by @nohwnd in https://github.com/microsoft/vstest/pull/15541
• Remove deprecated WebTest and TMI test methods by @nohwnd in https://github.com/microsoft/vstest/pull/15525
• Fix compatibility test failures for legacy vstest.console and MSTest adapter by @nohwnd in https://github.com/microsoft/vstest/pull/15534
• Convert TestPlatform.sln to slnx format by @nohwnd in https://github.com/microsoft/vstest/pull/15551
• Convert test/TestAssets .sln files to .slnx format by @nohwnd in https://github.com/microsoft/vstest/pull/15557
• Enable parallelization for blame data collector tests by @nohwnd in https://github.com/microsoft/vstest/pull/15552
• Fix CI failure when GeneratedTestAssets directory doesn't exist by @nohwnd in https://github.com/microsoft/vstest/pull/15556
• Set DOTNET_ROOT in test.sh for local Linux usage by @nohwnd in https://github.com/microsoft/vstest/pull/15559
• Use MSTest recommended analyzers by @Evangelink in https://github.com/microsoft/vstest/pull/15539
• Document semicolon handling in RunSettings test parameters by @nohwnd in https://github.com/microsoft/vstest/pull/15561
• Enable CA1067 analyzer and fix violations by @nohwnd in https://github.com/microsoft/vstest/pull/15560
• Fix HTML logger parallel file collision with atomic file creation by @nohwnd in https://github.com/microsoft/vstest/pull/15562
• Deduplicate package extraction between verify-nupkgs and IntegrationTestBuild by @nohwnd in https://github.com/microsoft/vstest/pull/15554
• Fix MSTEST0046: use Assert.MatchesRegex instead of StringAssert.Matches by @nohwnd in https://github.com/microsoft/vstest/pull/15575
• Attach diagnostic logs to acceptance test runs by @nohwnd in https://github.com/microsoft/vstest/pull/15572
• Deprecate EnableShutdownAfterTestRun which is no-op by @Youssef1313 in…