This might need discussion at a future meeting.
Feature https://fedoraproject.org/wiki/Changes/AnacondaLVMRAID
Impacts this criterion: https://fedoraproject.org/wiki/Fedora_26_Beta_Release_Criteria#Custom_partit...
The term "software RAID arrays" current means mdadm managed arrays. The feature will change this to mean both mdadm and LVM managed arrays. For /boot it'll remain mdadm managed. For anything else where LVM is also used (rootfs, home, var, opt) then it will be LVM managed.
Visible changes: Installer GUI - yes, but they're not in rawhide 20170201 yet GNOME shell - nothing except possibly device failure notifications CLI - completely different tools are used to manage mdadm and LVM raid; to even discover the existence of them, requires using two commands.