Because Python 3.6 extended support on Windows and Linux will end on 23 December 2021, any applications hosted on Azure App Service that are still using it will be unsupported after 23 December 2021.
Recommended action
To minimize risk and potential security vulnerabilities, follow the steps to update your applications before 23 December 2021.
If you have questions, get answers from community experts in Microsoft Q&A. If you have a support plan and you need technical help, create a support request.