ASUS Start Rolling Out ZenFone 2 Android Marshmallow

Today ASUS Start to rolling out update Android M for ZenFone 2 series. The first ASUS Smartphone which get Android Marshmallow is ASUS ZenFone 2 Laser ZE500KL. The Marshmallow update for ZenFone 2 Laser ZE500KL is roll out today 11/5/2016 with V13.10.6.16 firmware version.

To update your ZenFone 2 to Marshmallow, Open Settings>About>System Update and click Check for Updates.

Here is the Notice note before updating to Marshmallow

Software update to Android 6.0 Mashmallow. Internal storage will decrease slightly after update, suggest to back up data and relocate media file (pictures & video clip) to SD card to reserve enough storage before starting the software update.
Android Marshmallow won't support APP2SD. Please move apps to internal storage before system upgrades.
Multi-user function won't be supported if the account is deleted. Please keep your account to continue usage.
The apps listed below will no longer be pre-loaded once your device has been upgraded to Android 6.0 (Marshmallow).

Removed Apps:

Omlet 1.
Data Transfer
Photo Frame
ASUS Backup
Dr. Safety
What's next
Party Link
Remote Link
PC Link
Yahoo Shopping
EZ
TripAdvisor
Zinio
iReader
Dr. Eye
Google+
Puffin Browser
Mirror
Google Settings (Integrated with ASUS Settings)

New Apps as follows:

Google Calendar
Google Messenger
Dr. Booster

Asus Email, Asus Calendar, Asus Messaging will no longer be pre-loaded in this version. You can use Gmail, Google Calendar & Google Messenger provides corresponding services

Source: http://www.asus.com/zentalk/tw/thread-142773-1-1.html