The Asus ZenFone 5Z is finally getting the Android 9.0 Pie update after several weeks of beta testing. Apart from updating the base Android version, this update also brings a new contextual pop-up volume bar and a new Magnifier feature for easier copy-paste. The update is currently being rolled out in phases and is expected to reach everyone in the next few weeks.
https://www.notebookcheck.net/Android-9-0-Pie-now-officially-rolling-out-for-the-Asus-ZenFone-5Z.401841.0.html