Three months ago, ASUS promised to update the ZenFone 3 product line to ZenUI 4.0: a trimmed down, more minimal version of the company's software. They started with the ZenFone 3 Zoom at the same time as that announcement, and just recently the ZenFone 4 Max got it. Three months later, its forebear the ZenFone 3 Max is able to join the fun. The update will be rolling out over the next week.