Had my 2016 CX-9 in for maintenance today and requested an update of the infotainment center software from59.00.441 to 59.00.540. I was surprised when I saw they updated to 59.00.545, they said this version was only released today. It is only a few hours but is working fine so far.
I’m still running whatever it was that came with the car more than a year ago. I haven’t had anything weird happen so I’m sticking with it since it seems all the newer version seems to have more issues than solutions from reading all the posts.