Update hosted-services.md to reflect BackgroundService.StartAsync breaking change#37054
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tdykstra merged 2 commits intodotnet:mainfrom May 5, 2026
Merged
Update hosted-services.md to reflect BackgroundService.StartAsync breaking change#37054tdykstra merged 2 commits intodotnet:mainfrom
tdykstra merged 2 commits intodotnet:mainfrom
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…aking change As of dotnet/runtime#116283 (in .NET 10), `BackgroundService.StartAsync` no longer blocks until the `BackgroundService.ExecuteAsync` implementation reaches an `await` point; `StartAsync` now always runs `ExecuteAsync` on the thread pool using `Task.Run`.
tdykstra
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May 5, 2026
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Thanks, @dionrhys! |
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As of dotnet/runtime#116283 (issue: dotnet/runtime#36063) landing in .NET 10,
BackgroundService.StartAsyncno longer blocks until theBackgroundService.ExecuteAsyncimplementation reaches anawaitpoint;StartAsyncnow always runsExecuteAsyncon the thread pool usingTask.Run.This PR updates the wording for .NET 10+ versions to reflect the new behaviour. Previous versions of the page (.NET 8 and 9) retain the existing wording.
If it's desirable, I could also provide a warning of the breaking change on the .NET 10+ versions of the page in case someone's landed on latest docs but are actually working on .NET 8 or 9, so they don't get a surprise hang during app startup.
Let me know if you'd like any changes. ✌
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