Not sure about the Future of CoreOS, though: "With the acquisition, Container Linux will be reborn as Red Hat CoreOS, a new entry into the Red Hat ecosystem. Red Hat CoreOS will be based on Fedora and Red Hat Enterprise Linux sources and is expected to ultimately supersede Atomic Host as Red Hat’s immutable, container-centric operating system."
https://coreos.com/blog/coreos-tech-to-combine-with-red-hat-...
The Flatcar project wants to keep the original CoreOS alive, however: https://www.flatcar-linux.org