I depend on my PC's both Mac and Windows to make my living.
Unless an update is to specifically to address an issue I'm having and I can't manage without it being fixed I NEVER install an update when their released. I leave it a few days until I see the no one is having any bad issues.
I'm lucky I guess having more than one Windows and Mac device so I can install the updates on only one to see how they go. That way at least I'm not writing of a day sorting out problems, and fixing any issues when I have time.
History has show many an update that has caused adverse effects, so it's not just a matter of if but when.