I guess the first part of your post is about one thing, the second one is about the other. I tried to be conservative but since you seem to misunderstand my position, I will make it more strict. I don't know of any instances when the installer did the wrong thing. If you do, please tell us so that we would be more cautious in dealing with updates.


Alex
3.1 GHz 13" MacBook Pro 2015, 8 GB RAM, OS 10.11.2, Office 2011, TimeWarner Cable
2.8 GHz Xeon Mac Pro 2010, 16 GB RAM, OS 10.11.2, Office 2011, LAN