ZTE takes software updates very seriously since Z-Community members can now join the Android Nougat Beta program for the $99 USD, Qualcomm Snapdragon 617-driven ZMax Pro handset that launched back in July 2016 with Marshmallow on board.
http://www.notebookcheck.net/ZTE-ZMax-Pro-to-get-Android-Nougat-as-well.191934.0.html
This actually turned out to be false. ZTE made a announcement about "ZMAX PRO" which stated that ZTE has no plans to bring Nougat to the ZTE ZMAX PRO. Please check your sources and make sure you get actual info from the correct source.