On Tue, 01 Oct, 2019 at 13:57:19 -0400, MAILIST wrote: > After 40 years of upgrading many different operating systems, > Windows (from 3.1 to 10), CentOS 6 to 8, Ubuntu, Fedora, Red Hat, > AT&T Unix, VAX VMS; I have never observed an upgrade from one major > version to the next to work. The last one I tried using their "upgrade > process" was Ubuntu 18 to 19. Didn't work. I've been running Debian stable on various machines over the course of about 17 years. I have *never* had to reinstall.