Public Preview: Azure Functions Support for Java 21 on Linux

Azure Functions support for Java 21 on Linux is now in preview. 

You can now develop apps using Java 21 locally and deploy them to all Azure Functions plans on Linux.  Azure Functions support for Java 21 on Windows will be added soon. Learn more about updating your app to Java 21. 

For more info: 
Learn more about Java 21 
More information about Azure Functions Supported Languages