azurerm_linux_function_app powershell 7.6 not working

Question

azurerm_linux_function_app powershell 7.6 not working

Peters, A.A. (Alwin) 0

There has been an message on end of support for Powershell 7.4.

It is stated that this should be updated to Powershell 7.6.

That is possible within the portal, but when using terraform with azurerm_linux_function_app, 7.6 is not supported yet.

Is it clear when this will be available within terraform?

Regards,

Alwin

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Answer 1

Tejaswini Billakurthi 760 Microsoft External Staff Moderator

Hello @Peters, A.A. (Alwin) ,

Thank you for reaching out to Microsoft Q & A !

There are two separate aspects here: Azure Functions platform support and Terraform AzureRM provider support.

I don’t have a verified release date for PowerShell 7.6 support in azurerm_linux_function_app.

Microsoft Azure Functions supports PowerShell 7.6 for applicable hosting plans, but whether you can configure 7.6 through azurerm_linux_function_app also depends on the version of the AzureRM Terraform provider you are using.

If your installed provider rejects:

powershell_core_version = "7.6"

during Terraform validation, that indicates the provider version you are using does not currently accept that value.

One important consideration is the hosting plan. If your Function App uses Linux Consumption, Microsoft’s guidance is to migrate to Flex Consumption before upgrading from PowerShell 7.4 to 7.6, rather than only changing the runtime version.

Microsoft documentation: Azure Functions supported languages

For the Terraform-specific part, could you provide:

AzureRM provider version.

The exact Terraform error and relevant application_stack configuration, with sensitive values removed.

The Function App hosting plan (Linux Consumption, Flex Consumption, Premium, App Service, etc.).

With those details, we can determine whether the limitation is coming from the hosting plan/runtime support or from the AzureRM provider schema.

I would also recommend checking the AzureRM provider changelog for your specific provider version before upgrading or making an out-of-band portal change. If the runtime is changed outside Terraform, review the subsequent terraform plan carefully to see whether Terraform attempts to revert the change.

Please "Upvote the Answer" if this information helped you. This will help us and others in the community as well.

Peters, A.A. (Alwin) 0 Reputation points

2026-09-23T11:12:56.07+00:00
Thanks for the answer.

I am using the following provider:

required_providers { azurerm = { source = "hashicorp/azurerm" version = ">= 4.0.0" } }

Error from terraform:

│ Error: expected site_config.0.application_stack.0.powershell_core_version to be one of ["7" "7.2" "7.4"], got 7.6

The function app runs on a Linux server plan, P0V3.
Tejaswini Billakurthi 760 Reputation points Microsoft External Staff Moderator

2026-09-25T09:57:43.5733333+00:00
Hi @Peters, A.A. (Alwin) ,

Thank you for providing the AzureRM provider version and the exact Terraform error.

There are two separate considerations here:

Azure Functions runtime support

Terraform AzureRM provider support

The following validation error:

expected site_config.0.application_stack.0.powershell_core_version to be one of ["7", "7.2", "7.4"], got 7.6

confirms that your installed AzureRM provider version does not accept 7.6 for the powershell_core_version property of azurerm_linux_function_app.

Even when a PowerShell version is available in Azure Functions, the HashiCorp AzureRM provider must separately add that value to the validation implemented for the corresponding Terraform resource.

For your Linux P0v3 Function App, verify that PowerShell 7.6 is supported for the specific Azure Functions hosting and runtime combination before making the stack change through the Azure portal.

On the Terraform side, monitor the AzureRM provider release notes for an update that explicitly adds PowerShell 7.6 support to azurerm_linux_function_app.

The AzureRM PowerShell 7.6 issue relates specifically to azurerm_windows_function_app and azurerm_windows_function_app_slot. It should not be interpreted as confirmation that the same support is available for azurerm_linux_function_app.

At present, I could not find a verified release date or AzureRM provider version that accepts:

powershell_core_version = "7.6"

for azurerm_linux_function_app.

This is therefore a Terraform AzureRM provider limitation for the Linux resource, separate from PowerShell runtime availability in Azure Functions.