CENTOS

Website: centos.org
CentOS: ver. 7-2009

DEBIAN

Website: debian.org
DEBIAN Desktop: ver. 11.2

FEDORA

Website: getfedora.org
Fedora workstation: ver. 35
Fedora server: ver. 35
Fedora IoT: ver. 35

OPEN SUSE

Website: opensuse.org
Opensuse: ver. 15.3
Opensuse net. image: ver. 15.3

RED HAT

Website: redhat.com
Red HAt Developer: ver. 8.5.0
Red Hat Dev. net.ver. 8.5.0

UBUNTU

Website: ubuntu.com
UBUNTU Desktop: ver. 20.04
UBUNTU SERVER: ver. 20.04