More & more companies are now adopting the newest version of Android at-least for their flagship devices. the A7000 was the most value packed Lenovo handset of 2015.
Now the Marshmallow update has been made available for the Lenovo A7000. The update comes in stages so you need to be patent in order to your device to receive the Marshmallow update. In order to download the latest update just go to press Menu > Settings > About Device > Software Update > Update.
The update brings some basic Android Marshmallow changes to the phone as well as the system. Some very common additions are Doze mode for battery saving, Google Now on tap, App permissions etc.