How do I suppress the upgrade notification?
On Mac mini (macOS Sierra 10.12.6), the notification "Upgrade to macOS High Sierra" has come up.
I've read very bad things about upgrading to macOS High Sierra, and want to tell the notification to go away for (say) a week. Perhaps then the bugs will be straightened out.
How do I make that notification go away for a week?
null-OTHER, macOS Sierra (10.12.6), Mac mini