Been happily using OS X 10.8.5 for some time now.
It has been mildly irritating to get a frequent reminder to update.
But if it works, why meddle with it?
Now getting reminders for YOSEMITE.
Probably have to surrender and update, and suffer the risk of dealing with unwanted 'improvements' aka 'added complexity'.
But it looks as if YOSEMITE is still buggy.
When I try to update OS, will it be possible to update to just the version before YOSEMITE?
That version should by now be fairly clean.