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Retirement: Support for the in-process model for .NET apps in Azure Functions ends 10 November 2026.

Published date: March 29, 2024

Beginning 10 November 2026, the in-process model for .NET apps in Azure Functions will no longer be supported. To ensure that your apps that use this model continue being supported, you'll need to transition to the isolated worker model by that date.

You may still use your .NET apps with the in-process model beyond 10 November 2026, but they will no longer receive security and feature updates from Microsoft.

The isolated worker model offers all the same functionality as the in-process model, plus improvements such as:

  • Full control of the dependency chain.
  • Isolation from platform lifecycle activities.
  • The ability to target Standard Term Support (STS) versions of .NET.

Required action

To ensure your .NET apps in Azure Functions continue to receive support, migrate to the isolated worker model by 10 November 2026.

Help and support

If you have questions, get answers from community experts in Microsoft Q&A. If you have a support plan and you need technical help, open the Azure portal and select the question mark icon at the top of the page.

  • Azure Functions
  • Retirements

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