A new OTA update is rolling out to Asus Zenfone 5Z, which focuses on improving the camera capabilities of the smartphone. This update adds support for RAW capture, Panorama mode, and a host of other camera-related improvements, improved Wi-Fi stability, and bug fixes.
https://www.notebookcheck.net/Asus-Zenfone-5Z-OTA-update-brings-RAW-support-and-other-camera-improvements.320822.0.html