Looks like a security update, however the new build IS RU2DPJ2, security patch November 1, 2016 so far no issues with the phone I did wipe the cache partition. I got a notice from Verizon, postponed it until I could back up, using smart switch I backed up and then Smart Switch prompted me to install new software which I did. Now Verizon says I am up to date when I check for updates but does not show (on the system update tab) that I have updated to the new version.