Well, yes, there are reasons, including:
* lack of time, between family and new job;
* I've seen that some people have had some issues with the polisy upgrade, and I don't have the time to do it, or troubleshoot an upgrade gone bad.
I'm on 5.8.4 ATM, and not having issues, so I want to put it off to a time I have time. And not happy getting reminders 3 times a day, including middle of night.
It seems that the only way to stop the upgrade messages on UDM is to disable PG3 notifications, which also probably kills the plugin connection notices as well. Wish there was more control over which messages could be suppressed...
-Alan