.NET 9 Preview 1 extension installed on Windows Function App, how to enable?

David Callan 20 Reputation points MVP
2024-03-08T09:54:27.45+00:00

I've installed the .NET 9 runtime extension, how do I enable it?
I don't see it present in the version selection dropdown, I've restarted after installing the extension.

Does anyone know? Thanks in advance

I've also tried something like :

az functionapp config set -g GROUPNAME -n APPNAME --net-framework-version v9.0

without success.

Does this extension work?
Azure Function .NET version selection screenshot

Azure Functions
Azure Functions
An Azure service that provides an event-driven serverless compute platform.
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.NET Runtime
.NET Runtime
.NET: Microsoft Technologies based on the .NET software framework.Runtime: An environment required to run apps that aren't compiled to machine language.
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Accepted answer
  1. MuthuKumaranMurugaachari-MSFT 22,341 Reputation points
    2024-03-11T02:39:41.4733333+00:00

    David Callan Thanks for posting your question in Microsoft Q&A. Currently, Azure Functions supports the below list of versions for Isolated model (refer Languages; Supported versions doc) and .NET 9 is not supported yet. To answer your question, the specific versions of .NET such as .NET 9 cannot be installed via extension. Instead, I suggest you using the supported versions.

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    I hope this helps and let me know if any questions.


    If you found the answer to your question helpful, please take a moment to mark it as Yes for others to benefit from your experience. Or simply add a comment tagging me and would be happy to answer your questions.

    1 person found this answer helpful.

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  1. Dave Black 0 Reputation points
    2024-09-25T16:30:33.06+00:00

    As of 9/25/24, according to the Supported versions doc, .NET 9 preview IS supported - see: https://learn.microsoft.com/en-us/azure/azure-functions/dotnet-isolated-process-guide?tabs=windows#supported-versions

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