[erlang-questions] Release upgrade of an app without a top supervisor

[Roberto Ostinelli]

Thank you for this example Ulf.

However, the modifications I've illustrated here below to the relup file
instruct to stop the setup application.

The release_handler will query the states only of currently running
applications:
https://github.com/erlang/otp/blob/maint/lib/sasl/src/release_handler_1.erl#L597

Hence, since the setup app is stopped, it does not query it.

Probably that's why my example here below works? :)
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