KB4483235 was an emergency update for Internet Explorer to fix a vulnerability that was actively being exploited in the wild. As such, Internet Explorer from XP through win10 got a patch.
In win10 Edge is the default PDF viewer, and at least with my old Brother printer, & it's equally old drivers, printing PDF files of more than a couple of pages took forever, with RAM usage >4GB no less! Switching the default PDF viewer to Opera in Settings cured the problem.