well its that time of year again. upgrade time. some ppl look forward to it and some dread it.
if you are of the first group then welcome!.
this is how you upgrade your fedora 22 system to fedora 23now the definitive guide to upgrading your system is over here
however the short of it is that fedup has been renamed with its conversion from yum to dnf. next, the process has been broken into 2 steps: download then reboot. you can no longer put both in the same command.
so here it is
sudo dnf update --refresh
dnf install -y dnf-plugin-system-upgrade
sudo dnf -y system-upgrade download --releasever=23
sudo dnf -y system-upgrade reboot
let me know how it goes :)