Now with new UE edition 4.7 pre, must I export FBX 2013 from Maya?

I want to know if I must use FBX 2013 or I can use FBX 2015.
Thx.

No, you can also use fbx 2014 -> dont know what happens when you use fbx 2015, but just try it out :wink:

I use fbx 2012 from Lightwave 3D 11.6 and it works like a charm.