New version doesn't update

[ahmetcancs]

Hey everyone, I have a NET 6 Winforms Project, Setup Validation Class Library and a Setup Project. I use Setup Validation CL for validation first setup. I need a automatic update system. I tried AutoUpdater.NET. I uploaded the xml and new release zip(setup project .msi -> zip). I execute the old release for testing. New release is dowloaded. But old release is not closed. It asks for permission to download and extract the new version by closing and opening the old version in an endless loop. By the way, I added a mutex to prevent multiple openings in my application. When I try to open the second one, this application is already running and I get an error window.
I think there is a mistake or deficiency in what I did.

[ravibpatel]

You can try handling the application exit event as shown here to close the app gracefully before starting the update.