You have to implemented this functionality in code or using a package for example flutter has a “Upgrader” package which does this checking and allows you to keep showing a popup to force the user to update. But that will only apply to people who downloaded the app with the new code.
If users have V1 without the code , you cannot force them to go to V2, once you push the app for V2 with the code and the user gets that installed , then when you upload V3 users will be forced to update.
Calma
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