Looks like my Samsung Galaxy S5 has joined the long list of "Abandondroid" products.
No security updates for over a year now. Too bad - I will continue to use it until it dies (Hardly ever use it online anyway since it has a Vodafone prepaid SIM card in it).
I also still have (and use) a Samsung Tab 3 10.1 inch tablet that hasn't seen a security update for 4 years now. I don't keep anything important on it and I usually do a factory restore about once a month to keep any security issues at bay.