The newest release of Fedora 34 and its spins offers BTRFS compression by default, a switch from X11 to Wayland as default for KDE Plasma, and other improvements.

On https://distrotest.net/, over 300 different operating systems can be tested from within the browser or via a VNC client.

»Rocky Linux is a community enterprise Operating System designed to be 100% bug-for-bug compatible with Enterprise Linux, now that CentOS has shifted direction.«

»CentOS Linux 8, as a rebuild of RHEL 8, will end at the end of 2021. CentOS Stream continues after that date, serving as the upstream (development) branch of Red Hat Enterprise Linux.«

CentOS Linux 8 (2011), derived from the Red Hat Enterprise Linux (RHEL) 8.3 source code, was released.