Asus ZenFone 3 Deluxe updated with camera performance improvements, ZenUI tweaks
According to Asus, the new update is meant to further enhance the camera performance, as well as improve ZenUI stability. Also, the update should add some fixes to the Bluetooth connectivity so that users won't experience any issues with connections.
Software version 18.104.22.1684 is pushed OTA (over the air) in stages, so it should take about a week for the system to complete the roll-out. However, Asus ZenFone 3 Deluxe users who won't receive the update during a week's time, should head to Settings / About / System update to flash out the update manually.
Keep in mind that the update is available for the ZenFone 3 Deluxe with model number ZS570KL, which sports a 5.7-inch full HD (1080p) display. If you own the ZenFone 3 Deluxe ZS550KL that features a smaller 5.5-inch FHD display, the update will not show up on your phone.