Seeing as MacUpdate is frequently LATE offering Flash updates, keep this in mind:
-> Adobe provides updates for all its software on the Second Tuesday of the month (just like Microsoft). Because Flash is so poorly coded, Adobe frequently provides interim updates as well during any month. IOW: Check the Adobe home page frequently for updates if you use their software, especially awful Flash.

The DEATH DATE for Flash is midnight, December 31, 2020. It can't come soon enough. Party at my place.