Azure Logic Apps Standard Local Function and .NET in-process retirement

AkarshaAkarsha-6739 0 Reputation points
2026-09-30T10:48:13.2366667+00:00

I still have one important concern regarding the November 10, 2026 retirement.

Could you please confirm whether the Logic Apps Standard Local Function runtime used by the "Call a local function in this logic app" action internally uses the Azure Functions .NET in-process model?

Specifically, I would like to confirm whether the November 10, 2026 retirement applies to the runtime that executes these Local Functions, even though the Local Function itself is part of the Logic Apps Standard project rather than a separate Azure Function App.

If the Local Function runtime is not the Azure Functions .NET in-process model, could you please confirm that the November 10, 2026 retirement does not apply to these Local Functions?

If this cannot be confirmed from the current documentation, could this question please be escalated to the Azure Logic Apps product team?

Thank you.

Azure Logic Apps
Azure Logic Apps

An Azure service that automates the access and use of data across clouds without writing code.

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  1. Andriy Bilous 12,356 Reputation points MVP
    2026-09-30T14:55:06.1833333+00:00

    Hello AkarshaAkarsha-6739

    You are right, support for the Azure Functions .NET in-process execution model ends November 10, 2026.

    Therefore, I would make the distinction:

    • Yes: Logic Apps Standard has been using the Azure Functions in-proc hosting architecture, and Microsoft is actively migrating the Logic Apps runtime to out-of-proc.
    • No: the current documentation does not say that customers using Call a local function in this logic app must independently migrate those Local Functions to the Azure Functions isolated-worker model by November 10, 2026.
    • If your Logic App Standard / Local Function remains on .NET 8 after November 10, 2026, the current evidence suggests it will not automatically stop on November 11. But the support position becomes important.
    • For Azure Functions generally, Microsoft explicitly distinguishes end of support from service shutdown. Older runtimes can continue running after support ends, but they no longer receive normal support, security fixes, or improvements unless Microsoft separately announces a hard-stop date.
    • For .NET 8 November 10, 2026 is the end-of-support date, and the in-process model also ends support then. For Logic Apps Standard, however, the situation is different. Logic Apps platform itself is being migrated from the Functions in-proc host to an out-of-proc host, and for most Logic Apps this platform migration is automatic.

    Logic Apps migration from in-proc to out-of-proc hosting

    Create and run Local Functions in Logic Apps Standard

    Azure Functions in-process to isolated migration

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