If the iPhone app you developed is working fine and doesn't need to be updated, Apple will delete it from the App Store. What a fun company!
https://vivqu.com/blog/2022/09/25/outdated-apps/
I opened the message and was greeted with the “App Store Improvement Notice”. I was essentially told that I hadn’t updated my app in three years and now it counts as outdated. I needed to update the app within 90 days or it would get automatically taken down.
https://vivqu.com/blog/2022/09/25/outdated-apps/