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Microsoft.VisualStudio.Threading.Analyzers

18.7.23138M downloads/momicrosoft/vs-threading ↗New releases in your daily digest, changelog included.

Static code analyzer to detect common mistakes or potential issues regarding threading and async coding.

Last release 3 months ago
22 Jun 2026
Ships unpredictably
gaps range from 8 days to 1.1 years
Rarely documented
notes for 7 of the last 60 stable releases
5 versions withdrawn
withdrawn after publishing
127 years old
114 releases · first in 1900

Release timeline

114 releases since 1900

Releases

18.7.2322 Jun 2026
Fix CancellationToken.Combine with 3+ cancelable tokens by Andrew Arnott (@AArnott) in #1443
What's Changed

Fixes

Fix CancellationToken.Combine with 3+ cancelable tokens by Andrew Arnott (@AArnott) in #1443

Fix VSTHRD110 firing in Expression-valued scenarios by Andrew Arnott (@AArnott) with @Copilot in #1467

Fix super set for VSTHRD103 by Andrew Arnott (@AArnott) in #1545

Fix VSTHRD114 not firing for null in ternary conditional expressions by Andrew Arnott (@AArnott) with @Copilot in #1548

Disable VSTHRD010 in AppWithoutMainThread.editorconfig by Artur Dorochowicz (@ArturDorochowicz) in #1562

Fix VSTHRD103 missing diagnostic for sync extension methods with async alternatives in the same static class by Drew Noakes (@drewnoakes) with @Copilot in #1569

Enhancements

Add JoinableTaskFactory.DisableProcessing() by Andrew Arnott (@AArnott) in #1576

Add NoMessagePumpSyncContext..ctor(SynchronizationContext) for Post/Send behaviors by Andrew Arnott (@AArnott) in #1578

Add trim and NativeAOT safety attributes by Andrew Arnott (@AArnott) in #1471

Add IPendingExecutionRequestState interface to expose completion state of SingleExecuteProtector by Lifeng Lu (@lifengl) in #1447

Add AdditionalFiles support to VSTHRD103 analyzer for excluding specific APIs by Andrew Arnott (@AArnott) with @Copilot in #1465

Document InvalidOperationException for AsyncReaderWriterLock acquisition methods by Andrew Arnott (@AArnott) with @Copilot in #1466

Allow library code to detect the JoinableTaskContext is not associated with Main thread by Lifeng Lu (@lifengl) in #1477

remove NotifyOfCrossThreadDependency call inside get_NoMessagePumpSynchronizationContext by Lifeng Lu (@lifengl) in #1486

reduce overhead when running in no main thread mode by Lifeng Lu (@lifengl) in #1502

Join tasks waited by JoinableTaskCollection.JoinUntilEmpty in dumpasync result by Lifeng Lu (@lifengl) in #1538

Remove slow regex from threading analyzers by Andrew Arnott (@AArnott) in #1547

New Contributors

Juraj Grosic (@jgrosic) made their first contribution in #1485

Abhitej John (@AbhitejJohn) made their first contribution in #1533

Artur Dorochowicz (@ArturDorochowicz) made their first contribution in #1562

@microsoft-github-policy-service[bot] made their first contribution in #1587

Full Changelog: v17.14.15...v18.7.23

From the same repository

microsoft/vs-threading

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19002026

One column per quarter.

Additional notes

Latest

Compare

Open source →

17.14.1514 May 2025

Fix VSTHRD110 false negative in local functions of async methods by Andrew Arnott (@AArnott) in #1385

What's Changed

Fixes

Fix VSTHRD110 false negative in local functions of async methods by Andrew Arnott (@AArnott) in #1385
Fix a race condition which leads product to hang by Lifeng Lu (@lifengl) in #1426
Switch from build to buildTransitive for analyzer package by Andrew Arnott (@AArnott) in #1434

Enhancements

Create a Microsoft.VisualStudio.Threading.Only package by Andrew Arnott (@AArnott) in #1429
Get !dumpasync ready for Azure Watson by Andrew Arnott (@AArnott) in #1380

Dependency updates

Update dependency System.Runtime.CompilerServices.Unsafe to 6.1.0 by renovate in #1406
Update Included in .NET runtime to v8 (major) by renovate in #1408
Update dependency System.Memory to 4.6.0 by renovate in #1402
Update dependency System.Threading.Tasks.Extensions to 4.6.0 by renovate in #1407
Update dotnet monorepo to 4.13.0 by renovate in #1424
Update dependency Microsoft.Bcl.AsyncInterfaces to v9 by renovate in #1438

Full Changelog: v17.13.2...v17.14.15

Open source →

17.14.2-alpha12 Mar 2025pre-release

Fix VSTHRD110 false negative in local functions of async methods by Andrew Arnott (@AArnott) in #1385

What's Changed

Fix VSTHRD110 false negative in local functions of async methods by Andrew Arnott (@AArnott) in #1385
Fix a race condition which leads product to hang by Lifeng Lu (@lifengl) in #1426
Create a Microsoft.VisualStudio.Threading.Only package by Andrew Arnott (@AArnott) in #1429

Full Changelog: v17.13.2...v17.14.2-alpha

Open source →

17.13.6117 Mar 2025

Get !dumpasync ready for Azure Watson by Andrew Arnott (@AArnott) in #1380

What's Changed

Get !dumpasync ready for Azure Watson by Andrew Arnott (@AArnott) in #1380
Fix VSTHRD110 false negative in local functions of async methods by Andrew Arnott (@AArnott) in #1385
Fix a race condition which leads product to hang by Lifeng Lu (@lifengl) in #1426
Create a NuGet package that offers the library without the analyzers by Andrew Arnott (@AArnott) in #1435

Full Changelog: v17.13.2...v17.13.61

Open source →

17.13.212 Feb 2025

Set version to 17.13 by Matteo Prosperi (@matteo-prosperi) in #1360

What's Changed

Set version to 17.13 by Matteo Prosperi (@matteo-prosperi) in #1360

No functional changes in this version.

Full Changelog: v17.12.19...v17.13.2

Open source →

17.12.1912 Nov 2024

Add AsyncBarrier.SignalAndWait(CancellationToken) overload by Andrew Arnott (@AArnott) in #1330

Enhancements

Add AsyncBarrier.SignalAndWait(CancellationToken) overload by Andrew Arnott (@AArnott) in #1330
Add JoinableTaskContext.CreateNoOpContext() method by Andrew Arnott (@AArnott) in #1345

Fixes

Fix hang in AsyncLazy<T>.DisposeValueAsync by Andrew Arnott (@AArnott) in #1340
Fix JoinableTaskContext.serializedTasks memory leak by Andrew Arnott (@AArnott) in #1346
Fix an invalid operation exception when enumerating RarelyRemoveItemSet. by Lifeng Lu (@lifengl) in #1352
Raise VSTHRD002 on improper sync-blocking of configured awaiters by Andrew Arnott (@AArnott) in #1355

Other

Update sos-threading tool to use NET 8 runtime by Lifeng Lu (@lifengl) in #1353
Sign native dll and exclude test exe from sign check by Andrew Arnott (@AArnott) in #1334
Document Join APIs that may propagate exceptions by Andrew Arnott (@AArnott) in #1332
Update AsyncQueue.Enqueue doc by Andrew Arnott (@AArnott) in #1341
Sign the GalleryManifest.xml file by Andrew Arnott (@AArnott) in #1336

Full Changelog: v17.11.20...v17.12.19

Open source →

17.11.2013 Aug 2024

Stabilize package version by Matteo Prosperi (@matteo-prosperi) in #1326

What's Changed

Stabilize package version by Matteo Prosperi (@matteo-prosperi) in #1326

Full Changelog: v17.11.19-preview...v17.11.20

Open source →

17.11.19-preview3 Jul 2024pre-release

Bump System.Threading.Tasks.Dataflow from 7.0.0 to 8.0.0 by Dependabot (@dependabot) in #1292

What's Changed

Bump System.Threading.Tasks.Dataflow from 7.0.0 to 8.0.0 by Dependabot (@dependabot) in #1292
Bump Microsoft.Bcl.AsyncInterfaces from 7.0.0 to 8.0.0 by Dependabot (@dependabot) in #1281
Skip sending ETW trace event for nested lock which is always granted automatically by Lifeng Lu (@lifengl) in #1301
Prevent creating two task waiting chains per AsyncLazy.GetValueAsync(CancellationToken) by Lifeng Lu (@lifengl) in #1296
Ensure unique requestId values in ETW events by Andrew Arnott (@AArnott) in #1304
Increase AsyncCrossProcessMutex stack size by Andrew Arnott (@AArnott) in #1310
Add System.Memory as package dependency by Andrew Arnott (@AArnott) in #1317
Fix documentation around AsyncQueue<T> completion
by Andrew Arnott (@AArnott) in #1316

Full Changelog: v17.10.48...v17.11.19-preview

Open source →

17.10.481 May 2024

Don't package reference inbox assemblies on .NETCoreApp by Viktor Hofer (@ViktorHofer) in #1269

What's Changed

Don't package reference inbox assemblies on .NETCoreApp by Viktor Hofer (@ViktorHofer) in #1269
Use precise assembly version for analyzers project by Andrew Arnott (@AArnott) in #1266
Add AsyncLazy<T>.SuppressRecursiveFactoryDetection property by Andrew Arnott (@AArnott) in #1265
Fix hang in AsyncLazy<T>.DisposeValue() when T : IAsyncDisposable by Andrew Arnott (@AArnott) in #1271
Bring back LocBin artifact publishing by Andrew Arnott (@AArnott) in #1284
Fix missing LocBin artifact on non-Windows agents by Andrew Arnott (@AArnott) in #1285
Beef up VSTHRD003 documentation by Andrew Arnott (@AArnott) in #1283
Build stable 17.10 version by Andrew Arnott (@AArnott) in #1293
Rollback Microsoft.Bcl.AsyncInterfaces to 6.0.0 by Andrew Arnott (@AArnott) in #1307

New Contributors

Viktor Hofer (@ViktorHofer) made their first contribution in #1269

Full Changelog: v17.9.28...v17.10.48

Open source →

17.10.4121 May 2024

Nothing published for this version

17.10.12-preview23 Apr 2024pre-release

Don't package reference inbox assemblies on .NETCoreApp by Viktor Hofer (@ViktorHofer) in #1269

What's Changed

Don't package reference inbox assemblies on .NETCoreApp by Viktor Hofer (@ViktorHofer) in #1269
Use precise assembly version for analyzers project by Andrew Arnott (@AArnott) in #1266
Add AsyncLazy<T>.SuppressRecursiveFactoryDetection property by Andrew Arnott (@AArnott) in #1265
Bump MicrosoftDiagnosticsRuntimeVersion from 2.4.416101 to 3.1.456501 by Dependabot (@dependabot) in #1259
Fix hang in AsyncLazy<T>.DisposeValue() when T : IAsyncDisposable by Andrew Arnott (@AArnott) in #1271
Merge latest Library.Template by Andrew Arnott (@AArnott) in #1270

New Contributors

Viktor Hofer (@ViktorHofer) made their first contribution in #1269

Full Changelog: v17.9.28...v17.10.12-preview

Open source →

17.9.287 Feb 2024

Nothing published for this version

17.9.1-alpha5 Dec 2023pre-release

Nothing published for this version

17.8.1414 Nov 2023

Nothing published for this version

17.7.3517 Nov 2023

Nothing published for this version

17.7.3010 Aug 2023

Nothing published for this version

17.7.1-preview28 Jul 2023pre-release

Nothing published for this version

17.6.4016 May 2023

Nothing published for this version

17.5.222 Feb 2023

Nothing published for this version

17.5.213 Mar 2023

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17.5.10-alpha5 Jan 2023pre-release

Nothing published for this version

17.4.333 Jan 2023

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17.4.279 Nov 2022

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17.3.4821 Oct 2022

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17.3.449 Aug 2022

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17.3.331 Jan 1900withdrawn

Nothing published for this version

17.3.1-alpha14 Jul 2022pre-release

Nothing published for this version

17.2.326 May 2022

Nothing published for this version

17.2.20-alpha26 Apr 2022pre-release

Nothing published for this version

17.1.4617 Feb 2022

Nothing published for this version

17.0.648 Nov 2021

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17.0.6323 Sept 2021

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17.0.46-alpha20 Sept 2021pre-release

Nothing published for this version

17.0.32-alpha11 Aug 2021pre-release

Nothing published for this version

17.0.26-alpha19 Jul 2021pre-release

Nothing published for this version

17.0.17-alpha17 Jun 2021pre-release

Nothing published for this version

17.0.15-alpha1 Jun 2021pre-release

Nothing published for this version

17.0.13-alpha17 May 2021pre-release

Nothing published for this version

16.10.5627 May 2021

Nothing published for this version

16.10.53-alpha1 Jan 1900pre-releasewithdrawn

Nothing published for this version

16.10.51-alpha17 Jun 2021pre-release

Nothing published for this version

16.9.6011 Mar 2021

Nothing published for this version

16.9.543 Mar 2021

Nothing published for this version

16.9.515 Nov 2021

Nothing published for this version

16.9.45-alpha15 Jan 2021pre-release

Nothing published for this version

16.8.555 Nov 2020

Nothing published for this version

16.8.5127 Oct 2020

Nothing published for this version

16.8.5023 Oct 2020

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16.7.562 Sept 2020

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16.7.5431 Jul 2020

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16.7.4022 Jan 2021

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16.6.134 Apr 2020

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16.5.13210 Feb 2020

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16.5.124-alpha20 Dec 2019pre-release

Nothing published for this version

16.5.119-alpha19 Dec 2019pre-release

Nothing published for this version

16.5.108-alpha13 Dec 2019pre-release

Nothing published for this version

16.4.4521 Jan 2020

Nothing published for this version

16.4.4319 Dec 2019

Nothing published for this version

16.4.3919 Dec 2019

Nothing published for this version

16.4.3316 Nov 2019

Nothing published for this version

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