Once installation of the updated packages is complete, the system reboots again to the new Fedora release.But what does this new upgrade method mean for Fedup?
Having tried this method on numerous occasions I would not consider this to be on par with the available in the Debian/Ubuntu distros which actually worked very well.
None of the Red Hat distros prior to Fedora 17 included the ability to do dist-upgrades as you've asked.
This had been a long discussed option on many peoples' wish list but had never been implemented.
Before the release of Fedora 23, the recommended method of upgrading a Fedora system is Fedup, the FEDora UPgrade tool.
On Fedora 23, a new upgrade tool implemented as a component of DNF, the Fedora package manager, was introduced.