Sandbox::https://redirect.github.com/madcoons/chrome-for-testing-nuget/pull/79

Publish Microsoft.Testing.Platform coverage messages from coverlet.MTP #2019
Implement dynamic exclusion filters for assemblies (Coverlet.MTP) #1946
Replace legacy .sln files with modern .slnx format #1966
coverlet.console: add trace diagnostics and actionable warnings for instrumentation/hit/empty-result failures #2005
Relax auto-property skip logic and improve coverage for records #1941

Fixed

Fix coverlet.MTP does not collect coverage on the .NET Framework portion of a large project #1980 #1967
Fix Regression in branch coverage for lambda expressions #1938
Fix When using "is" with "or" in pattern matching, branch coverage is lower than normal #1979
Fix silent zero coverage on .NET Framework since 8.0.0 #1985 by @tobiwae
Fix Race condition between ProcessExit hit-file write and out-of-proc coverage read causes EndOfStreamException #1987 #1988 by @bkoelman
Fix Regression TypeInitializationException when targeting .NET Framework - Could not load type 'System.Collections.Concurrent.ConcurrentBag #2010
Fix use --config-file CLI arg in coverlet.MTP #2030 by alexthornton1
Fix silently empty coverage for shared-framework assemblies missing from compileLibraries #2032 by @Eljees

Diff between 10.0.1 and 10.1.0

10.0.1

Improvements

Coverlet with MTP 2 doesn't show test coverage statistic in console #1907
Avoid unnecessary testhost restarts #1912 by https://github.com/mawosoft

Fixed

Fix inconsistent paths in cobertura reports #1723
Fix when using "is" with "and" in pattern matching, branch coverage is lower than normal #1313
Fix Coverlet flagging a branch for an async functions finally block where none exists #1337
Fix Coverlet Tracker Missing CompilerGeneratedAttribute #1828

Maintenance

Add architecture docs and diagrams for all integrations #1927
Update NuGet packages and .NET SDK versions #1933

Diff between 10.0.0 and 10.0.1

10.0.0 Improvements

Unique Report Filenames (coverlet.MTP and AzDO) #1866
Add --coverlet-file-prefix option for unique report files #1869
Introduce .NET 10 support #1823

Fixed

Fix [BUG] Wrong branch rate on IAsyncEnumerable for generic type #1836
Fix [BUG] Missing Coverage after moving to MTP #1843
Fix [BUG] No coverage reported when targeting .NET Framework with 8.0.1 #1842
Fix [BUG] Behavior changes between MTP and Legacy (msbuild) #1878
Fix [BUG] Coverlet.MTP - Unable to load coverlet.mtp.appsettings.json #1880
Fix [BUG] Coverlet.Collector produces empty report when Mediator.SourceGenerator is referenced #1718 by https://github.com/yusyd
Fix [BUG] Crash during instrumentation (Methods using LibraryImport/DllImport have no body) #1762

Maintenance

Add comprehensive async method tests and documentation for issue #1864
Replace Tmds.ExecFunction Package in coverlet.core.coverage.tests #1833
Add net9.0 and net10.0 targets #1822

Diff between 8.0.1 and 10.0.0

8.0.1

Fixed

Fix [BUG] TypeInitializationException when targeting .NET Framework #1818
Fix [BUG] coverlet.MTP build fails with CS0400 due to developmentDependency=true #1827

Improvements

Additional improvements needed for .NET Framework instrumentation type import #1825

Diff between 8.0.0 and 8.0.1

8.0.0

Special Thanks: A huge thank you to @Bertk for driving the majority of the work in this release! 🎉

Fixed

Fix System.CommandLine 2.0 release is available #1776
Fix Excluding From Coverage bad defaults from given example #1764
Fix branchpoint exclusion for sdk 8.0.407 #1741
Fix missing copyright information in NuGet #1794
Fix bad default values in documentation #1764 by https://github.com/cboudereau

Improvements

Coverlet MTP extension feature #1788
Generate SBOM for nuget packages #1752
Use multi targets projects for coverlet.collector, coverlet.msbuild.tasks packages #1742
Use .NET 8.0 target framework for coverlet.core and remove Newtonsoft.Json #1733
Use latest System.CommandLine version #1660
Upgraded minimum required .NET SDK and runtime to .NET 8.0 LTS (Long Term Support) (Breaking Change)
Use xunit.v3 for tests and example code

Diff between 6.0.4 and 8.0.0

Commits viewable in compare view.

Updated Microsoft.NET.Test.Sdk from 18.0.0 to 18.12.0.

Release notes

Sourced from Microsoft.NET.Test.Sdk's releases.

18.12.0 Security fix

This release includes the fix for CVE-2026-105544, an elevation of privilege vulnerability in the VSTest artifact post-processor. The post-processor could consume a forged executionComplete.json written by another local user, and then run attacker-controlled output handling.

Affected: Microsoft.TestPlatform.CLI 18.11.0 and earlier. Every version from 18.11.1 on is fixed, including 18.12.0.

Microsoft.TestPlatform.CLI is the VSTest build that we ship into the .NET SDK. The recommended way to get this fix is to update your .NET SDK to the latest patched version, see the advisory for the SDK versions.

The fix is also released in the Microsoft.TestPlatform.CLI package, for completeness. That package is rarely used directly. It is not a dependency of Microsoft.NET.Test.Sdk or Microsoft.TestPlatform, so those packages do not bring it in.

Details: microsoft/vstest#16654 and dotnet/announcements#517

Using custom Docker images or Nano Server? See microsoft/vstest#16652

What's Changed

Fix TestCaseStart/Stop events dropped for data-driven tests with shared TestCase.Id by @nohwnd in [fix] Fix TestCaseStart/Stop events dropped for data-driven tests with shared TestCase.Id microsoft/vstest#16033
Stop the discovery manager factory from shadowing discoveryCriteria by @nohwnd in Stop the discovery manager factory from shadowing discoveryCriteria microsoft/vstest#16391
Gate the HTTP link checker on a fingerprint of the broken links by @nohwnd in Gate the HTTP link checker on a fingerprint of the broken links microsoft/vstest#16413
Quote boolean conditions in shipped Microsoft.TestPlatform.targets by @nohwnd in Quote boolean conditions in shipped Microsoft.TestPlatform.targets microsoft/vstest#16404
Obsolete API hygiene: the compatibility-safe changes by @azat-msft in Obsolete API hygiene: the compatibility-safe changes microsoft/vstest#16420
Add xxHash128 test ids, available but not default by @azat-msft in Add xxHash128 test ids, available but not default microsoft/vstest#16378
Isolate attachment manager test temporary files by @mmitche in Isolate attachment manager test temporary files microsoft/vstest#16463
Test ids report logger by @azat-msft in Test ids report logger microsoft/vstest#16443
Isolate code coverage files in published output by @azat-msft in Isolate code coverage files in published output microsoft/vstest#16483
Preserve OutputType for Android test projects by @jonathanpeppers in Preserve OutputType for Android test projects microsoft/vstest#16496
Fix dotnet host resolution under proot (ARM64/Termux) by @azat-msft in Fix dotnet host resolution under proot (ARM64/Termux) microsoft/vstest#16462
Mark the xxHash128 test id API as experimental by @azat-msft in Mark the xxHash128 test id API as experimental microsoft/vstest#16465
Ship Microsoft.Diagnostics.NETCore.Client in Microsoft.TestPlatform and Portable packages by @nohwnd in [rel/18.12] Ship Microsoft.Diagnostics.NETCore.Client in Microsoft.TestPlatform and Portable packages microsoft/vstest#16633
Fix localized resource paths in CLI source-build/non-Windows packages by @nohwnd in [rel/18.12] Fix localized resource paths in CLI source-build/non-Windows packages microsoft/vstest#16644

Full Changelog: microsoft/vstest@v18.11.0...v18.12.0

18.11.1 Security fix

This release fixes CVE-2026-105544, an elevation of privilege vulnerability in the VSTest artifact post-processor. The post-processor could consume a forged executionComplete.json written by another local user, and then run attacker-controlled output handling.

Affected: Microsoft.TestPlatform.CLI 18.11.0.
Fixed in: Microsoft.TestPlatform.CLI 18.11.1.

Microsoft.TestPlatform.CLI is the VSTest build that we ship into the .NET SDK. The recommended way to get this fix is to update your .NET SDK to the latest patched version, see the advisory for the SDK versions.

The fix is also released in the Microsoft.TestPlatform.CLI package, for completeness. That package is rarely used directly. It is not a dependency of Microsoft.NET.Test.Sdk or Microsoft.TestPlatform, so those packages do not bring it in.

Details: microsoft/vstest#16654 and dotnet/announcements#517

Using custom Docker images or Nano Server? See microsoft/vstest#16652

What's Changed

Security fix for CVE-2026-105544, see Microsoft Security Advisory CVE-2026-105544 - .NET Elevation of Privilege Vulnerability microsoft/vstest#16654
Ship Microsoft.Diagnostics.NETCore.Client in Microsoft.TestPlatform and Portable packages by @nohwnd in [rel/18.11] Ship Microsoft.Diagnostics.NETCore.Client in Microsoft.TestPlatform and Portable packages microsoft/vstest#16632
Fix localized resource paths in CLI source-build packages by @nohwnd in [rel/18.11] Fix localized resource paths in CLI source-build/non-Windows packages microsoft/vstest#16643

Full Changelog: microsoft/vstest@v18.11.0...v18.11.1

18.11.0 What's Changed

Fix TRX logger mangling astral-plane (non-BMP) characters by @azat-msft in Fix TRX logger mangling astral-plane (non-BMP) characters microsoft/vstest#16318
Disable the MTP testhost by default by @nohwnd in Disable the MTP testhost by default microsoft/vstest#16337
Fix OS-blind apphost probe in MTP bridge on Unix (regression from #16201) by @azat-msft in Fix OS-blind apphost probe in MTP bridge on Unix (regression from #16201) microsoft/vstest#16336
Retarget the MTP client onto Microsoft.Testing.Platform.ServerMode.Client.Sources by @nohwnd in Retarget the MTP client onto Microsoft.Testing.Platform.ServerMode.Client.Sources microsoft/vstest#16300
Pass arguments to PowerShell with -File instead of -command by @nohwnd in Pass arguments to PowerShell with -File instead of -command microsoft/vstest#16363
Respect console logger verbosity from a settings file by @nohwnd in Respect console logger verbosity from a settings file microsoft/vstest#16044
Fix backslash normalization in VSTestCLIRunSettings on Unix by @nohwnd in [fix] Fix backslash normalization in VSTestCLIRunSettings on Unix microsoft/vstest#15795
Docs: fix typo explicitely -> explicitly by @vaibhav8a in docs: fix typo explicitely -> explicitly microsoft/vstest#16397
Copy acceptance test diagnostic logs into the test results directory by @nohwnd in Copy acceptance test diagnostic logs into the test results directory microsoft/vstest#16403

New Contributors

@vaibhav8a made their first contribution in docs: fix typo explicitely -> explicitly microsoft/vstest#16397

Full Changelog: microsoft/vstest@v18.10.1...v18.11.0

18.10.2 Security fix

This release fixes CVE-2026-105544, an elevation of privilege vulnerability in the VSTest artifact post-processor. The post-processor could consume a forged executionComplete.json written by another local user, and then run attacker-controlled output handling.

Affected: Microsoft.TestPlatform.CLI 18.10.0 and 18.10.1.
Fixed in: Microsoft.TestPlatform.CLI 18.10.2.

Microsoft.TestPlatform.CLI is the VSTest build that we ship into the .NET SDK. The recommended way to get this fix is to update your .NET SDK to the latest patched version, see the advisory for the SDK versions.

The fix is also released in the Microsoft.TestPlatform.CLI package, for completeness. That package is rarely used directly. It is not a dependency of Microsoft.NET.Test.Sdk or Microsoft.TestPlatform, so those packages do not bring it in.

Details: microsoft/vstest#16654 and dotnet/announcements#517

Using custom Docker images or Nano Server? See microsoft/vstest#16652

What's Changed

Security fix for CVE-2026-105544, see Microsoft Security Advisory CVE-2026-105544 - .NET Elevation of Privilege Vulnerability microsoft/vstest#16654

Full Changelog: microsoft/vstest@v18.10.1...v18.10.2

18.10.1 What's Changed

Isolate code coverage files in published output by @azat-msft in [rel/18.10] Isolate code coverage files in published output microsoft/vstest#16476

Full Changelog: microsoft/vstest@v18.10.0...v18.10.1

18.10.0 What's Changed

Drop Mono fallback, run .NET Framework tests on Windows only by @nohwnd in Drop Mono fallback, run .NET Framework tests on Windows only microsoft/vstest#16158
Run Microsoft.Testing.Platform test apps under vstest.console and datacollector by @nohwnd in Run Microsoft.Testing.Platform test apps under vstest.console and datacollector microsoft/vstest#16201
Fix test output eaten by MSBuild terminal logger by @nohwnd in [fix] Fix test output eaten by MSBuild terminal logger microsoft/vstest#16223
Remove the experimental test session feature by @nohwnd in Remove the experimental test session feature microsoft/vstest#16231
Skip a single bad executor instead of failing all executor loading by @nohwnd in Skip a single bad executor instead of failing all executor loading microsoft/vstest#16239
Assert apartment state instead of using Clipboard in UI tests by @nohwnd in Assert apartment state instead of using Clipboard in UI tests microsoft/vstest#16270
Surface test host crashes during protocol negotiation by @nohwnd in Surface test host crashes during protocol negotiation microsoft/vstest#16285
Pass the inferred target platform to the host in run settings by @nohwnd in Pass the inferred target platform to the host in run settings microsoft/vstest#16271
Report raw invalid IsTargetPlatformInferred value, cover host x64 forcing by @nohwnd in Report raw invalid IsTargetPlatformInferred value, cover host x64 forcing microsoft/vstest#16295
Disable the MTP testhost by default (#16337) by @nohwnd in [rel/18.10] Disable the MTP testhost by default (#16337) microsoft/vstest#16341

Full Changelog: microsoft/vstest@v18.9.0...v18.10.0

18.9.0 What's Changed

Fix tilde/exclamation characters corrupted in TerminalLogger test output by @nohwnd in [fix] Fix tilde/exclamation characters corrupted in TerminalLogger test output microsoft/vstest#16046
Make TranslationLayer Native AOT-compatible by @drewnoakes in Make TranslationLayer Native AOT-compatible microsoft/vstest#16045
Guard GenerateProgramFile target against UseWinUI/UseUwpTools evaluation order by @nohwnd in [fix] fix: guard GenerateProgramFile target against UseWinUI/UseUwpTools evaluation order microsoft/vstest#16072
Add RequestingAssembly to AssemblyResolveEventArgs for binary compat by @nohwnd in [fix] fix: add RequestingAssembly to AssemblyResolveEventArgs for binary compat microsoft/vstest#16076
Remove stale Microsoft.Extensions.FileSystemGlobbing binding redirect from testhost.x86 and datacollector by @Evangelink in Remove stale Microsoft.Extensions.FileSystemGlobbing binding redirect from testhost.x86 and datacollector microsoft/vstest#16082
Fix TRX attachment paths when LogFileName contains a subdirectory by @nohwnd in [fix] Fix TRX attachment paths when LogFileName contains a subdirectory microsoft/vstest#15791
Fix missing dumps for .NET Framework child processes in NetClientHangDumper by @nohwnd in [fix] Fix missing dumps for .NET Framework child processes in NetClientHangDumper microsoft/vstest#16098
Fix data collection channels to use negotiated protocol version instead of V1 by @nohwnd in [fix] Fix data collection channels to use negotiated protocol version instead of V1 microsoft/vstest#16096
Fix race condition in BlameCollector: skip hang dump when testhost hasn't launched yet by @nohwnd in [fix] Fix race condition in BlameCollector: skip hang dump when testhost hasn't launched yet microsoft/vstest#16065
Replace TestSDKAutoGeneratedCode with ExcludeFromCodeCoverage in auto-generated Program files by @nohwnd in [fix] Replace TestSDKAutoGeneratedCode with ExcludeFromCodeCoverage in auto-generated Program files microsoft/vstest#16101
Include testhost process path in crash error messages by @nohwnd in [fix] Include testhost process path in crash error messages microsoft/vstest#16108
Fix DataDriven test results being double-counted in TRX logger totals by @nohwnd in [fix] Fix DataDriven test results being double-counted in TRX logger totals microsoft/vstest#15766
Fix datacollector crash visibility: replace Assert with throwable exceptions by @nohwnd in [fix] Fix datacollector crash visibility: replace Assert with throwable exceptions microsoft/vstest#16048
Add TreatErrorMessagesAsWarnings parameter to TRX logger by @nohwnd in [fix] Add TreatErrorMessagesAsWarnings parameter to TRX logger microsoft/vstest#16106
Wait for testhost stderr to drain before reading its crash output by @nohwnd in Wait for testhost stderr to drain before reading its crash output microsoft/vstest#16128
Handle runtimeconfig.dev.json without additionalProbingPaths by @tmat in Handle runtimeconfig.dev.json without additionalProbingPaths microsoft/vstest#16166
Suggest Microsoft.NET.Test.Sdk when a managed test project brings no testhost by @nohwnd in Suggest Microsoft.NET.Test.Sdk when a managed test project brings no testhost microsoft/vstest#16169
Fix x86 testhost loading mismatched x64 hostfxr (0x800700C1) when run via vstest.console.exe directly (#16151) by @azat-msft in Fix x86 testhost loading mismatched x64 hostfxr (0x800700C1) when run via vstest.console.exe directly (#16151) microsoft/vstest#16156
Preserve the real exception (type + stack trace) when a test run aborts in BaseRunTests by @nohwnd in [fix] Preserve the real exception (type + stack trace) when a test run aborts in BaseRunTests microsoft/vstest#16167

New Contributors

@drewnoakes made their first contribution in Make TranslationLayer Native AOT-compatible microsoft/vstest#16045

Full Changelog: microsoft/vstest@v18.8.0...v18.9.0

18.8.1 What's Changed

Fix protocol negotiation timeout when STJ reflection is disabled (18.8.1) by @nohwnd in Fix protocol negotiation timeout when STJ reflection is disabled (18.8.1) microsoft/vstest#16281

Full Changelog: microsoft/vstest@v18.8.0...v18.8.1

18.8.0 What's Changed

Migrate from Newtonsoft.Json to System.Text.Json / Jsonite (merge to main) by @nohwnd in feat: migrate from Newtonsoft.Json to System.Text.Json / Jsonite (merge to main) microsoft/vstest#15687
- For more detail refer to https://devblogs.microsoft.com/dotnet/vs-test-is-removing-its-newtonsoft-json-dependency/
Create source-only filter package by @Youssef1313 in Create source-only filter package microsoft/vstest#15638
Add ARM64 msdia140.dll support to test platform packages by @nohwnd in Cherry-pick: Add ARM64 msdia140.dll support to test platform packages microsoft/vstest#15692
Fix mutex cleanup crash on macOS/Linux by @nohwnd in Fix mutex cleanup crash on macOS/Linux microsoft/vstest#15684
Restrict artifact temp directory permissions on Unix by @nohwnd in Restrict artifact temp directory permissions on Unix microsoft/vstest#15729
Add support for filtering uncategorized tests with TestCategory=None by @Evangelink in Add support for filtering uncategorized tests with TestCategory=None microsoft/vstest#15727
Fix SCI binding failure in DTA hosts (main) by @nohwnd in Fix SCI binding failure in DTA hosts (main) microsoft/vstest#15724
Fix HTML logger parallel file collision by @nohwnd in [fix] Fix HTML logger parallel file collision microsoft/vstest#15435
Improve error message when testhost cannot be found by @nohwnd in [fix] Improve error message when testhost cannot be found microsoft/vstest#16053
Fix HTML logger exception on invalid XML chars in test display names by @nohwnd in [fix] Fix HTML logger exception on invalid XML chars in test display names microsoft/vstest#16051

Full Changelog: microsoft/vstest@v18.7.0...v18.8.0

18.7.1 Security fix

This release fixes CVE-2026-105544, an elevation of privilege vulnerability in the VSTest artifact post-processor. The post-processor could consume a forged executionComplete.json written by another local user, and then run attacker-controlled output handling.

Affected: Microsoft.TestPlatform.CLI 18.7.0.
Fixed in: Microsoft.TestPlatform.CLI 18.7.1.

Microsoft.TestPlatform.CLI is the VSTest build that we ship into the .NET SDK. The recommended way to get this fix is to update your .NET SDK to the latest patched version, see the advisory for the SDK versions.

The fix is also released in the Microsoft.TestPlatform.CLI package, for completeness. That package is rarely used directly. It is not a dependency of Microsoft.NET.Test.Sdk or Microsoft.TestPlatform, so those packages do not bring it in.

Details: microsoft/vstest#16654 and dotnet/announcements#517

Using custom Docker images or Nano Server? See microsoft/vstest#16652

What's Changed

Security fix for CVE-2026-105544, see Microsoft Security Advisory CVE-2026-105544 - .NET Elevation of Privilege Vulnerability microsoft/vstest#16654

Full Changelog: microsoft/vstest@v18.7.0...v18.7.1

18.7.0 What's Changed

Add ARM64 msdia140.dll support to test platform packages by @jamesmcroft in Add ARM64 msdia140.dll support to test platform packages microsoft/vstest#15689
Update System.Memory from 4.5.5 to 4.6.3 by @nohwnd in Update System.Memory from 4.5.5 to 4.6.3 microsoft/vstest#15706

New Contributors

@jamesmcroft made their first contribution in Add ARM64 msdia140.dll support to test platform packages microsoft/vstest#15689

Full Changelog: microsoft/vstest@v18.6.0...v18.7.0

18.6.0 What's Changed

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

Changes to tests and infra

Brand as 18.6 by @nohwnd in Brand as 18.6 microsoft/vstest#15423
Upgrading code coverage version to 18.5.1, by @fhnaseer in Upgrading code coverage version to 18.5.1, microsoft/vstest#15422
Updating System.Collections.Immutable to 9.0.11 by @MSLukeWest in Updating System.Collections.Immutable to 9.0.11 microsoft/vstest#15425
Fix attachVS when used for debugging integration tests by @nohwnd in Fix attachVS when used for debugging integration tests microsoft/vstest#15451
Replace dotnet.config, with global.json by @nohwnd in Replace dotnet.config, with global.json microsoft/vstest#15449
Document debugging integration tests with AttachVS by @Copilot in Document debugging integration tests with AttachVS microsoft/vstest#15452
Fix stack overflow tests by @nohwnd in Fix stack overflow tests microsoft/vstest#15461
Make TestAssets.sln buildable locally by @Youssef1313 in Make TestAssets.sln buildable locally microsoft/vstest#15466
Try filtering out tests by @nohwnd in Try filtering out tests microsoft/vstest#15463
Build just once when tfms run in parallel by @nohwnd in Build just once when tfms run in parallel microsoft/vstest#15465
Review simplify compatibility sources, deduplicate tests by @nohwnd in Review simplify compatibility sources, deduplicate tests microsoft/vstest#15472
Cleanup dead TRX code by @Youssef1313 in Cleanup dead TRX code microsoft/vstest#15474
Update .NET runtimes to 8.0.25, 9.0.14, and 10.0.4 by @nohwnd in Update .NET runtimes to 8.0.25, 9.0.14, and 10.0.4 microsoft/vstest#15481
Compat matrix checker by @nohwnd in Compat matrix checker microsoft/vstest#15480
Add trx analysis skill by @nohwnd in Add trx analysis skill microsoft/vstest#15486
Split integration tests to single tfm and multi tfm project by @nohwnd in Split integration tests to single tfm and multi tfm project microsoft/vstest#15484
Update matrix by @nohwnd in Update matrix microsoft/vstest#15477
Break infinite restore loop in VS by @nohwnd in Break infinite restore loop in VS microsoft/vstest#15503
Use global package cache for build, and local for running integration tests by @nohwnd in Use global package cache for build, and local for running integration tests microsoft/vstest#15500
Update contributing by @nohwnd in Update contributing microsoft/vstest#15505
Reduce test wall-clock time by increasing minThreads by @drognanar in Reduce test wall-clock time by increasing minThreads microsoft/vstest#15502
Indicator flakiness by @nohwnd in Indicator flakiness microsoft/vstest#15513
Fix ci build by @nohwnd in Fix ci build microsoft/vstest#15515
Fix thread safety issues by @Evangelink in Fix thread safety issues microsoft/vstest#15512
Optimize DotnetSDKSimulation_PostProcessing test (163s → 61s) by @nohwnd in Optimize DotnetSDKSimulation_PostProcessing test (163s → 61s) microsoft/vstest#15516
Build isolated test assets for single TFM instead of 7 by @nohwnd in Build isolated test assets for single TFM instead of 7 microsoft/vstest#15517
Remove unused dependencies from Library.IntegrationTests by @nohwnd in Remove unused dependencies from Library.IntegrationTests microsoft/vstest#15527
Remove printing _attachments content to console by @nohwnd in Remove printing _attachments content to console microsoft/vstest#15520
Add Linux/macOS test filtering guide to CONTRIBUTING.md by @nohwnd in Add Linux/macOS test filtering guide to CONTRIBUTING.md microsoft/vstest#15521
Change integration test parallelization from ClassLevel to MethodLevel by @nohwnd in Change integration test parallelization from ClassLevel to MethodLevel microsoft/vstest#15526
Unify target framework checks with IsNetFrameworkTarget/IsNetTarget by @nohwnd in Unify target framework checks with IsNetFrameworkTarget/IsNetTarget microsoft/vstest#15523
Add unattended work instructions to copilot-instructions.md by @nohwnd in Add unattended work instructions to copilot-instructions.md microsoft/vstest#15531
Reduce code style rule severity from warning to suggestion by @nohwnd in Reduce code style rule severity from warning to suggestion microsoft/vstest#15522
Remove Debug/Release line number branching from tests by @nohwnd in Remove Debug/Release line number branching from tests microsoft/vstest#15519
Revise unattended work instructions in copilot-instructions.md by @nohwnd in Revise unattended work instructions in copilot-instructions.md microsoft/vstest#15532
Improve CompatibilityRowsBuilder error message with diagnostic details by @nohwnd in Improve CompatibilityRowsBuilder error message with diagnostic details microsoft/vstest#15529
docs: add git worktree and upstream sync workflow to copilot-instructions.md by @nohwnd in docs: add git worktree and upstream sync workflow to copilot-instructions.md microsoft/vstest#15538
Add VSIX runner to smoke tests by @nohwnd in Add VSIX runner to smoke tests microsoft/vstest#15541
Remove deprecated WebTest and TMI test methods by @nohwnd in Remove deprecated WebTest and TMI test methods microsoft/vstest#15525
Fix compatibility test failures for legacy vstest.console and MSTest adapter by @nohwnd in Fix compatibility test failures for legacy vstest.console and MSTest adapter microsoft/vstest#15534
Convert TestPlatform.sln to slnx format by @nohwnd in Convert TestPlatform.sln to slnx format microsoft/vstest#15551
Convert test/TestAssets .sln files to .slnx format by @nohwnd in Convert test/TestAssets .sln files to .slnx format microsoft/vstest#15557
... (truncated)

18.5.1 What's Changed

Fix System.Collections.Immutable binding mismatch in Common.dll (rel/18.5) by @nohwnd in Fix System.Collections.Immutable binding mismatch in Common.dll (rel/18.5) microsoft/vstest#15720
Port verify-binding-redirects.ps1 to rel/18.5 by @nohwnd in Port verify-binding-redirects.ps1 to rel/18.5 microsoft/vstest#15719
Bump to 18.5.1 by @nohwnd in Bump to 18.5.1 microsoft/vstest#15721

Full Changelog: microsoft/vstest@v18.5.0...v18.5.1

18.5.0

⚠️ Unlisted on Nuget, because of #15718

What's Changed

Add runtime configs by @nohwnd in Add runtime configs microsoft/vstest#15377
Add net8.0 target for TranslationLayer by @nohwnd in Add net8.0 target for TranslationLayer microsoft/vstest#15375
Determine architecture of remote process on windows by @nohwnd in Determine architecture of remote process on windows microsoft/vstest#15396
Updating System.Collections.Immutable package reference to version 9.0.0 by @MSLukeWest in Updating System.Collections.Immutable package reference to version 9.0.0 microsoft/vstest#15392
Dump via netcore tool on windows by @nohwnd in Dump via netcore tool on windows microsoft/vstest#15397
Fix answer file splitting by @nohwnd in Fix answer file splitting microsoft/vstest#15381
Run tests against vsix runner by @nohwnd in Run tests against vsix runner microsoft/vstest#15419

Full Changelog: microsoft/vstest@v18.4.0...v18.5.0

18.4.0 What's Changed

Add LoongArch64 support by @stdmnpkg in Add LoongArch64 support microsoft/vstest#15359
Refactor Condition evaluation by @Youssef1313 in Refactor Condition evaluation microsoft/vstest#15357
Adding info on extensions points part 1 by @nohwnd in Adding info on extensions points part 1 microsoft/vstest#15360
Add option to ask for uploading code QL before the standard window ends by @nohwnd in Add option to ask for uploading code QL before the standard window ends microsoft/vstest#15373
Update runtime versions by @nohwnd in Update runtime versions microsoft/vstest#15372
Fix .NET 10 regression for traits by @Youssef1313 in Fix .NET 10 regression for traits microsoft/vstest#15370
Update target frameworks to net10.0 and net11.0 by @dotnet-maestro[bot] in Update target frameworks to net10.0 and net11.0 microsoft/vstest#15349
Fix names in pipeline matrix so we don't have to align them by @nohwnd in Fix names in pipeline matrix so we don't have to align them microsoft/vstest#15365
Update SECURITY.md by @Youssef1313 in Update SECURITY.md microsoft/vstest#15342

New Contributors

@stdmnpkg made their first contribution in Add LoongArch64 support microsoft/vstest#15359

Full Changelog: microsoft/vstest@v18.3.0...v18.4.0

18.3.0 What's Changed

Fix answer file splitting by @nohwnd in Fix answer file splitting microsoft/vstest#15306

Internal fixes and updates

Bump branding to 18.1 by @nohwnd in Bump branding to 18.1 microsoft/vstest#15286
Remove stale copy of S.ComponentModel.Composition from testplatform packages by @ViktorHofer in Remove stale copy of S.ComponentModel.Composition from testplatform packages microsoft/vstest#15287
Update codeflow metadata to fix backflow by @premun in Update codeflow metadata to fix backflow microsoft/vstest#15291
[main] Update dependencies from devdiv/DevDiv/vs-code-coverage by @dotnet-maestro[bot] in [main] Update dependencies from devdiv/DevDiv/vs-code-coverage microsoft/vstest#15283
Update Microsoft.Build.Utilities.Core by @Youssef1313 in Update Microsoft.Build.Utilities.Core microsoft/vstest#15300
Disable DynamicNative instrumentation by default by @nohwnd in Disable DynamicNative instrumentation by default microsoft/vstest#15299
[main] Source code updates from dotnet/dotnet by @dotnet-maestro[bot] in [main] Source code updates from dotnet/dotnet microsoft/vstest#15293
[main] Source code updates from dotnet/dotnet by @dotnet-maestro[bot] in [main] Source code updates from dotnet/dotnet microsoft/vstest#15302
[main] Source code updates from dotnet/dotnet by @dotnet-maestro[bot] in [main] Source code updates from dotnet/dotnet microsoft/vstest#15314
Delete sha1 custom implementation we are not using for a long time by @nohwnd in Delete sha1 custom implementation we are not using for a long time microsoft/vstest#15313
[main] Source code updates from dotnet/dotnet by @dotnet-maestro[bot] in [main] Source code updates from dotnet/dotnet microsoft/vstest#15315
Update branding to 18.3.0 by @nohwnd in Update branding to 18.3.0 microsoft/vstest#15321
[main] Update dependencies from devdiv/DevDiv/vs-code-coverage by @dotnet-maestro[bot] in [main] Update dependencies from devdiv/DevDiv/vs-code-coverage microsoft/vstest#15325
[main] Update dependencies from dotnet/arcade by @dotnet-maestro[bot] in [main] Update dependencies from dotnet/arcade microsoft/vstest#15264
Revert adding dotnet_host_path workaround by @nohwnd in Revert adding dotnet_host_path workaround microsoft/vstest#15328
[main] Update dependencies from dotnet/arcade by @dotnet-maestro[bot] in [main] Update dependencies from dotnet/arcade microsoft/vstest#15338
[main] Source code updates from dotnet/dotnet by @dotnet-maestro[bot] in [main] Source code updates from dotnet/dotnet microsoft/vstest#15322
[main] Update dependencies from dotnet/arcade by @dotnet-maestro[bot] in [main] Update dependencies from dotnet/arcade microsoft/vstest#15343
Change PreReleaseVersionLabel from 'preview' to 'release' by @nohwnd in Change PreReleaseVersionLabel from 'preview' to 'release' microsoft/vstest#15352
[rel/18.3] Update dependencies from devdiv/DevDiv/vs-code-coverage by @dotnet-maestro[bot] in [rel/18.3] Update dependencies from devdiv/DevDiv/vs-code-coverage microsoft/vstest#15354
[rel/18.3] Update dependencies from dotnet/arcade by @dotnet-maestro[bot] in [rel/18.3] Update dependencies from dotnet/arcade microsoft/vstest#15389
[rel/18.3] Update dependencies from dotnet/arcade by @dotnet-maestro[bot] in [rel/18.3] Update dependencies from dotnet/arcade microsoft/vstest#15400
Update build tools to 17.11.48 to be source buildable by @nohwnd in Update build tools to 17.11.48 to be source buildable microsoft/vstest#15310
Disable publishing on RTM by @nohwnd in Disable publishing on RTM microsoft/vstest#15296
Don't access nuget.org for package feeds by @nohwnd in Don't access nuget.org for package feeds microsoft/vstest#15316
No nuget access fix tests by @nohwnd in No nuget access fix tests microsoft/vstest#15317
Disable Dependabot updates in dependabot.yml by @mmitche in Disable Dependabot updates in dependabot.yml microsoft/vstest#15324

New Contributors

@premun made their first contribution in Update codeflow metadata to fix backflow microsoft/vstest#15291

18.0.2 Security fix

This release fixes CVE-2026-105544, an elevation of privilege vulnerability in the VSTest artifact post-processor. The post-processor could consume a forged executionComplete.json written by another local user, and then run attacker-controlled output handling.

Affected: Microsoft.TestPlatform.CLI 18.0.0 and 18.0.1.
Fixed in: Microsoft.TestPlatform.CLI 18.0.2.

Microsoft.TestPlatform.CLI is the VSTest build that we ship into the .NET SDK. The recommended way to get this fix is to update your .NET SDK to the latest patched version, see the advisory for the SDK versions.

The fix is also released in the Microsoft.TestPlatform.CLI package, for completeness. That package is rarely used directly. It is not a dependency of Microsoft.NET.Test.Sdk or Microsoft.TestPlatform, so those packages do not bring it in.

Details: microsoft/vstest#16654 and dotnet/announcements#517

Using custom Docker images or Nano Server? See microsoft/vstest#16652

What's Changed

Security fix for CVE-2026-105544, see Microsoft Security Advisory CVE-2026-105544 - .NET Elevation of Privilege Vulnerability microsoft/vstest#16654

Full Changelog: microsoft/vstest@v18.0.1...v18.0.2

18.0.1 What's Changed

Fixing an issue with loading covrun64.dll on systems that have .NET 10 SDK installed: https://learn.microsoft.com/en-us/dotnet/core/compatibility/sdk/10.0/code-coverage-dynamic-native-instrumentation

Disable DynamicNative instrumentation by default by @nohwnd in [rel/18.0] Disable DynamicNative instrumentation by default microsoft/vstest#15298
Update MicrosoftInternalCodeCoveragePackageVersion to 18.0.6 by @nohwnd in Update MicrosoftInternalCodeCoveragePackageVersion to 18.0.6 microsoft/vstest#15312

Internal changes

Update VersionPrefix to 18.0.1 by @nohwnd in Update VersionPrefix to 18.0.1 microsoft/vstest#15301
Update build tools to 17.8.43 by @nohwnd in Update build tools to 17.8.43 microsoft/vstest#15305

Full Changelog: microsoft/vstest@v18.0.0...v18.0.1

Commits viewable in compare view.

Updated NUnit from 4.4.0 to 5.0.0.

Release notes

Sourced from NUnit's releases.

5.0.0

See release notes for details.

4.6.1

See release notes for details.

4.6.0

See release notes for details.

4.5.1

See release notes for details.

4.5.0

See release notes for details.

Commits viewable in compare view.

Updated NUnit.Analyzers from 4.10.0 to 4.15.0.

Release notes

Sourced from NUnit.Analyzers's releases.

4.15.0

NUnit Analyzers 4.15 - September 12, 2026

This release of the NUnit Analyzers adds support for the new numeric types that will
be supported in NUnit 5. The release also improves NUnit1027 by inspecting base fixtures,
and NUnit1028 by supporting IAsyncDisposable.DisposeAsync in addition to the
existing IDisposable.Dispose. The release also includes bug fixes and dependency updates.

The release contains contributions from the following users (in alphabetical order):

@jhavlicek-profinit
@killergege
@manfred-brands
@mikkelbu
@ngbrown
@ramonsmits
@stevenaw
@uladz-zubrycki

Issues Resolved

Features and Enhancements

#1019 NUnit1027 does not see [CancelAfter] inherited from a base fixture
#1017 NU2047 reports failure for new numeric types
#1001 NUnit1028: Allow DisposeAsync as an exception
#999 [TestCaseSource] CA1812 suppression

Bugs

#1013 Use of records crash the NonNullableFieldOrPropertyIsUninitializedSuppressor analyzer
#998 Assert.EnterMultipleScope clears nullability suppress info

Tooling, Process, and Documentation

#1005 Bump Microsoft.NET.Test.Sdk from 18.6.0 to 18.7.0
#996 Bump Microsoft.NET.Test.Sdk from 17.14.1 to 18.6.0
#993 chore: bump version

4.14.0

NUnit Analyzers 4.14 - June 1, 2026

This release of the NUnit Analyzers adds a new analyzer and associated codefix - NUnit2059 - that helps ensure that
async assertion methods in NUnit version 5 and higher - i.e. Assert.ThrowsAsync, Assert.CatchAsync, and
Assert.DoesNotThrowAsync - have their results observed, as these methods are awaitable from NUnit version 5.

The release contains contributions from the following users (in alphabetical order):

@manfred-brands
@mikkelbu

Issues Resolved

Features and Enhancements

#988 Recognize that Assert.ThrowsAsync etc now return a Task that needs awaiting.

Tooling, Process, and Documentation

#990 Bump cake.tool from 6.1.0 to 6.2.0
#987 chore: bump version and correct errors in CHANGES.md

4.13.0

NUnit Analyzers 4.13 - May 2, 2026

This release of the NUnit Analyzers updates analyzer handling for the NUnit 4.6 API change that replaces
ActualValueDelegate<> with Func<> - see nunit/nunit#4824 for more information.
Analyzers now also consider the return type of Func<> in assertions. The release also includes one bug fix and
some dependency updates.

The release contains contributions from the following users (in alphabetical order):

@manfred-brands
@mikkelbu
@RenderMichael

Issues Resolved

Features and Enhancements

#982 Recognized Func<T> return values

Bugs

#968 Whitespace issue in Does.Contain fixer when assert spans multiple lines

Tooling, Process, and Documentation

#985 chore: Bump year to 2026 in copyrights
#978 Bump cake.tool from 6.0.0 to 6.1.0
#976 chore: Correct documentation
#975 chore: bump version
#956 Bump cake.tool from 4.0.0 to 6.0.0

4.12.0

NUnit Analyzers 4.12 - March 3, 2026

This release of the NUnit Analyzers improves NUnit1029 to account for TestCaseSource
support for params and optional arguments. It also introduces a new analyzer for incorrect
usage of Is.Not.Null.Or.Empty, fixes regressions in NUnit2005 and NUnit2055, and updates
NUnit package dependencies.

The release contains contributions from the following users (in alphabetical order):

@Dreamescaper
@manfred-brands
@mikkelbu
@nowsprinting
@philipp-naused
@stevenaw

Issues Resolved

Features and Enhancements

#957 Relax NUnit1029 for TestCaseSource where method accepts a single "params" array
#189 Warning when Is.Not.Null.Or.Empty used

Bugs

#953 Code fix for NUnit2055 can generate invalid code for classic asserts
#952 Code fix for NUnit2005 tries to use Is.Empty constraint on incompatible types.

Tooling, Process, and Documentation

#973 chore: Bump NUnit version
#970 chore: Bump NUnit to version 4.5.0
#967 Fix note about works with Unity Test Framework
#937 chore: bump version

4.11.2

NUnit Analyzers 4.11.2 - November 2, 2025

This release of the NUnit Analyzers fixes a problem in the NUnit2057 analyzer for unnecessary use of lambda
expressions. The release also extends NUnit2021 so that it can determining if Is.NaN or Is.Not.NaN constraints
are used on incompatible types.

The release contains contributions from the following users (in alphabetical order):

@MaceWindu
@manfred-brands
@stevenaw

Issues Resolved

Features and Enhancements

#929 Alert when using Is.NaN or Is.Not.NaN on an incompatible type

Bugs

#945 [NUnit2057] Reported for Throws assert

4.11.1

NUnit Analyzers 4.11.1 - October 30, 2025

This release of the NUnit Analyzers fixes a regression related to the analysis of nullable enum parameters in
NUnit1001 and NUnit1031. The release also contains a new analyzer and codefix for unnecessary usage of lambda
expressions in asserts.

The release contains contributions from the following users (in alphabetical order):

@MaceWindu
@maksim-sovkov
@manfred-brands

Issues Resolved

Features and Enhancements

#927 Add new rule for unnecessary use of lambda expressions

Bugs

#939 NUnit1001 - false positive for arguments with nullable enum parameters
#938 [NUnit1031] False positive for nullable structs

4.11.0

NUnit Analyzers 4.11 - October 28, 2025

This release of the NUnit Analyzers includes improvements and fixes related to IDisposable handling and initialization
in SetUp and OneTimeSetUp methods. It also introduces the ability to configure additional methods that should be
treated as SetUp and TearDown methods by the analyzers. This can be done in the .editorconfig, and there are four
configurations for this:

dotnet_diagnostic.NUnit.additional_setup_methods
dotnet_diagnostic.NUnit.additional_teardown_methods
dotnet_diagnostic.NUnit.additional_one_time_setup_methods
dotnet_diagnostic.NUnit.additional_one_time_teardown_methods

Each configuration accepts a list of method names, separated by commas, semicolons, or spaces. For example:

dotnet_diagnostic.NUnit.additional_setup_methods = CustomSetup, MyInit

As in recent releases, a major part of this work was contributed by @manfred-brands.

The release contains contributions from the following users (in alphabetical order):

@AlisonAMorrison
@BodrickLight
@cbersch
@manfred-brands
@mikkelbu
@PiotrKlecha
@sbe-schleupen

Issues Resolved

Features and Enhancements

#921 NUnit1032 - disposals in overridden methods not detected
#919 NUnit1032/NUnit3002 - local functions not analyzed
#918 NUnit2045 - false positive for inline usings
#911 NUnit3002 doesn't recognize the using statement.
#910 using declarations not recognized by NUnit2045

Bugs

#922 NUnit1001 - false positive for arguments with generic parameters
#914 Wrong position of NUnit1001 diagnostic for TestCase with four parameters or more

Tooling, Process, and Documentation

#926 chore: Bump NUnit3TestAdapter
#908 chore: bump version
#885 Bump to NUnit version 4.4 when this is released

Commits viewable in compare view.

Updated NUnit3TestAdapter from 5.1.0 to 6.3.1.

Release notes

Sourced from NUnit3TestAdapter's releases.

6.3.1

This is a hotfix release for issue 1504

6.3.0

See Release notes

6.2.0

See release notes

6.1.0

See release notes

6.0.1

See release notes

6.0.0

See release notes

5.2.0

See release notes

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Bumps ChromeForTesting from 141.0.7390.54038 to 157.0.8103.78046 Bumps CliWrap from 3.9.0 to 3.10.5 Bumps coverlet.collector from 6.0.4 to 10.1.0 Bumps Microsoft.NET.Test.Sdk from 18.0.0 to 18.12.0 Bumps NUnit from 4.4.0 to 5.0.0 Bumps NUnit.Analyzers from 4.10.0 to 4.15.0 Bumps NUnit3TestAdapter from 5.1.0 to 6.3.1 --- updated-dependencies: - dependency-name: ChromeForTesting dependency-version: 157.0.8103.78046 dependency-type: direct:production update-type: version-update:semver-major dependency-group: dotnet-dependencies - dependency-name: CliWrap dependency-version: 3.10.5 dependency-type: direct:production update-type: version-update:semver-minor dependency-group: dotnet-dependencies - dependency-name: coverlet.collector dependency-version: 10.1.0 dependency-type: direct:production update-type: version-update:semver-major dependency-group: dotnet-dependencies - dependency-name: Microsoft.NET.Test.Sdk dependency-version: 18.12.0 dependency-type: direct:production update-type: version-update:semver-minor dependency-group: dotnet-dependencies - dependency-name: NUnit dependency-version: 5.0.0 dependency-type: direct:production update-type: version-update:semver-major dependency-group: dotnet-dependencies - dependency-name: NUnit.Analyzers dependency-version: 4.15.0 dependency-type: direct:production update-type: version-update:semver-minor dependency-group: dotnet-dependencies - dependency-name: NUnit3TestAdapter dependency-version: 6.3.1 dependency-type: direct:production update-type: version-update:semver-major dependency-group: dotnet-dependencies ... Signed-off-by: dependabot[bot] <support@github.com>

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3.10.5

What's Changed

Enhancements

Bugs

3.10.4

What's Changed

Enhancements

Bugs

3.10.3

What's Changed

Bugs

New Contributors

3.10.2

What's Changed

Enhancements

Bugs

New Contributors

3.10.1

What's Changed

New Contributors

3.10

What's Changed

10.1.0

Improvements

Fixed

10.0.1

Improvements

Fixed

Maintenance

10.0.0

Improvements

Fixed

Maintenance

8.0.1

Fixed

Improvements

8.0.0

Fixed

Improvements

18.12.0

Security fix

What's Changed

18.11.1

Security fix

What's Changed

18.11.0

What's Changed

New Contributors

18.10.2

Security fix

What's Changed

18.10.1

What's Changed

18.10.0

What's Changed

18.9.0

What's Changed

New Contributors

18.8.1

What's Changed

18.8.0

What's Changed

18.7.1

Security fix

What's Changed

18.7.0

What's Changed

New Contributors

18.6.0

What's Changed

Changes to tests and infra

18.5.1

What's Changed

18.5.0

What's Changed

18.4.0

What's Changed

New Contributors