Thanks to Intuit for sending me Critical notice of available upgrade to QB Mac 2016. The information you provided is very helpful indeed. However the online notice page does everything except provide me with link to actual Upgrade.
So I have all the information I need, and I have made my choice of how to respond.
But when I want to actually effect this upgrade and buy it, there is no place or link for me to go to to do this.
"Updates" are made to QB for Mac 2016, which so far, Intuit has announced is the Final Mac-installed program. They intend to end support for that in May 2019.
You are posting to a peer user internet forum; this is not Live Chat with Intuit.