Thanks for the question. Yes, App Service support for Ruby is ending 12 April 2023 as announced here. After this date, App Service won’t support Ruby 2.7 or future versions of Ruby. Your applications will continue to run unchanged but won’t receive patches after 12 April 2023.
Recommended action
To minimize risk, follow the steps to migrate your applications to run in a custom container before 12 April 2023.
Please let us know if you have further questions.
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Grace