I upgraded my computer yesterday to Fedora 26 in some mere 20 minutes. It’s been the smoothest Fedora upgrade since I started using this OS. I’ve found nothing has broken or stopped working or requiring adjustments on my side. I decided to go for it seeing there hadn’t been major upgrades to Xorg and the kernel was the same (4.11.9). Naturally, Fedora 26 has many under-the-hood changes like the upgrade to GCC 7 and also a new version of Gnome, but I run i3.