Blender has been moving forward with new updates at light speed. Many new features have been added. Including new functionality for Rigify that is really awesome. Rigify was always a good rigging system but with these new updates it can truly stand on it own against some of the more larger systems.
These new updates and changes have been transparent to Uefy Script without any breaking effects. But there are some cosmetic changes to the interface you should be aware of when following what is shown in the older youtube tutorials.
FBX Import and Export
When importing or exporting FBX files the options for the armature and animation are on the right side of the dialog box. Only the location has changed. You still get the same options and they still operate the same way.
Uefy Script is a python script made for Blender 2.8 that enables rigify addon to export an Epic Skeleton compatible bone hierarchy. With Uefy you can quickly rig and export any character and create new animations for Unreal Engine from Blender.