AzureEnd of support
Azure Functions: runtime version 1.x end of support
End of support date for version 1.x of the Azure Functions runtime: 14 Sep 2026. The version can still be used after that date but no longer receives support or software and security updates.
Support ended , 14 Sep 2026
What breaks
Support for version 1.x of the Azure Functions runtime ends on 14 Sep 2026. Version 1.x can still be used beyond that date, but it is no longer supported and no longer receives software or security updates.
Who is affected
Affected versions
1.x
Matching resource types
azurerm_windows_function_app
Fields the check reads
functions_extension_version
What to do
To stay on a supported version, migrate to version 4.x of the Azure Functions runtime by the end of support date.
Replacement
Azure Functions runtime version 4.x
Sources
- Official sourceazure.microsoft.comOfficial
- Additional sourceaka.msOfficial
- Additional sourcelearn.microsoft.comOfficial
Last checked against the first source in this list on .
Related
- , 30 Sep 2026Azure Functions: runtime v3 on Linux Consumption retirementSource
- , 1 Oct 2026Azure Functions: Python 3.10 end of supportSource
- , 10 Nov 2026Azure Functions: .NET 8 and .NET 9 end of supportSource
- , 10 Nov 2026Azure Functions: .NET in-process model end of supportSource
- , 10 Nov 2026Azure Functions: PowerShell 7.4 end of supportSource
- , 30 Apr 2027Azure Functions: Node.js 22 end of supportSource
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