---
slug: "azure-functions-dotnet-in-process-model-end-of-support"
title: "Azure Functions: .NET in-process model end of support"
summary: "End of support date for the in-process model for .NET apps in Azure Functions: 10 Nov 2026. Apps on this model can still be used after that date but stop receiving security and feature updates."
cloud: "azure"
service: "Azure Functions"
service_slug: "functions"
category: "runtime"
type: "end_of_support"
announced_date: "2024-03-29"
effective_date: "2026-11-10"
effective_precision: "day"
replacement: "Isolated worker model"
affected_versions: []
source_url: "https://azure.microsoft.com/updates?id=retirement-support-for-the-inprocess-model-for-net-apps-in-azure-functions-ends-10-november-2026"
extra_source_urls: ["https://aka.ms/af-dotnet-isolated-migration"]
vendor_ref: "retirement-support-for-the-inprocess-model-for-net-apps-in-azure-functions-ends-10-november-2026"
last_checked_at: "2026-11-12T09:55:19.345Z"
created_at: "2026-11-13T13:36:44.208Z"
updated_at: "2026-11-13T13:36:44.208Z"
url: "https://eolwatch.dev/items/azure-functions-dotnet-in-process-model-end-of-support"
short_url: "https://eolwatch.dev/i/2o"
markdown_url: "https://eolwatch.dev/items/azure-functions-dotnet-in-process-model-end-of-support.md"
json_url: "https://eolwatch.dev/items/azure-functions-dotnet-in-process-model-end-of-support.json"
source_note: null
---

# Azure Functions: .NET in-process model end of support

End of support date for the in-process model for .NET apps in Azure Functions: 10 Nov 2026. Apps on this model can still be used after that date but stop receiving security and feature updates.

- Effective date: 10 Nov 2026
- Cloud: [Azure](https://eolwatch.dev/cloud/azure.md)
- Service: [Azure Functions](https://eolwatch.dev/services/azure/functions.md)
- Type: End of support
- Category: [Runtime](https://eolwatch.dev/categories/runtimes.md)
- Replacement: Isolated worker model
- Announced: 29 Mar 2024
- Official source: [azure.microsoft.com](https://azure.microsoft.com/updates?id=retirement-support-for-the-inprocess-model-for-net-apps-in-azure-functions-ends-10-november-2026)
- Last checked: 12 Nov 2026

## What breaks

From the end of support date, the in-process model for .NET apps in Azure Functions is no longer supported. .NET apps that use the in-process model can still be used after that date, but they no longer receive security and feature updates from Microsoft. Microsoft states that apps on this model need to transition to the isolated worker model by that date to continue being supported.

## Who is affected

### Matching resource types

- `azurerm_linux_function_app`

### Fields the check reads

- `site_config.application_stack.dotnet_version`
- `site_config.application_stack.use_dotnet_isolated_runtime`

### Detected by the estate check from

- Terraform state or plan (JSON)

## What to do

Move .NET apps from the in-process model to the isolated worker model by 10 Nov 2026: [migrate to the isolated worker model](https://aka.ms/af-dotnet-isolated-migration).

## Replacement

Isolated worker model

## Sources

- [Official source](https://azure.microsoft.com/updates?id=retirement-support-for-the-inprocess-model-for-net-apps-in-azure-functions-ends-10-november-2026) (azure.microsoft.com, Official)
- [Additional source](https://aka.ms/af-dotnet-isolated-migration) (aka.ms, Official)

Last checked against the first source in this list on 12 Nov 2026.

Page: https://eolwatch.dev/items/azure-functions-dotnet-in-process-model-end-of-support | JSON: https://eolwatch.dev/items/azure-functions-dotnet-in-process-model-end-of-support.json

The text on this page is drafted with AI assistance from the vendor's text, checked against the official source and approved by a person before it is published.