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Azure App Service: PHP 8.4 end of support

End of support date for PHP 8.4 on Azure App Service: 31 Dec 2028. Apps that use this version continue to run unchanged, but App Service can't provide security patches or related customer support for it past that date.

Support ends , 31 Dec 2028

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What breaks

After 31 Dec 2028, apps that use PHP 8.4 continue to run unchanged, but App Service can't provide security patches or related customer support for that runtime version.

  • An app on an unsupported language version must be upgraded to a supported version before it can get App Service support.
  • App Service sends reminder notifications about end-of-support dates to subscription owners.
  • Contributors, readers, or other roles don't directly receive notifications unless they opt in through Service Health Alerts.
  • For Java, the page adds that developers who use a supported Java runtime that is retired receive a deprecation notice at least six months before the runtime is retired.

Who is affected

Affected versions

  • 8.4

Matching resource types

  • microsoft.web/sites
  • azurerm_linux_web_app

Fields the check reads

  • linuxfxversion
  • kind
  • site_config.application_stack.php_version

Detected by the estate check from

  • Azure Resource Graph export (CSV or JSON)
  • Terraform state or plan (JSON)
  • ARM template

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What to do

  1. Find the language version the app uses. The language runtime support policy links "Show language version" resources for .NET, Java, Node, Python and PHP.
  2. Choose a supported version of PHP. The same page links the support timeline of each language community.
  3. Set the new language version for the app. The same page links "Set language versions" resources for .NET, Java, Node, Python and PHP.

Replacement

Not stated by vendor.

Sources

Last checked against the first source in this list on .

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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. How items are written

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