[Q] How to upgrade from stock 4.3 rooted to 5.0

I've done a bunch of searches on both XDA and google but haven't been able to figure out exactly what all steps I need to take to upgrade from 4.3 to 5.0 while keeping root or re-rooting.

I have downloaded the 5.0 stock firmware for my SM-N900T and have odin on my desktop PC, but am afraid to flash it. Do I need to flash 4.4 first and then 5.0?