Asus ZenFone 3 starts receiving Android 8.0 Oreo
For example, the launcher received some major changes, so you'll now be able to swipe up to see all apps, and the all app icon can be now changed. Furthermore, Asus states that it has implemented some changes to make the setting UI design more friendly.
Finally, you'll notice that some applications will be removed after the update, such as MiniMovie, Photo Collage, and Do It Later, so don't look for them.
Keep in mind that due to the fact that Asus' server pushes the update in waves, it may take a few days to hit all ZenFone 3 smartphones.