Latest Android Version.. Android M

Google has Launched preview 2 of Android M. The name has not being decided yet but there are many name suggestions like milkshake, marshmallow, M and Ms etc.
There are many cool features we able to see in 2nd  preview.
The landscape view of home screen finally made entry. Now you will be able to use your device in landscape mode in both home screen and application.
Fingerprint recognition is on a whole new level. It will be synchronized with Google app store and you can lock any application with it. Google has introduced Android Pay, with it you will be able checkout easier and faster compatible with MasterCard, Visa, American Express and carriers like AT&T, Verizon and T mobile.

The new and upgraded Power Management System will sense when device is not in use and reduce the RAM usage and Processor work. The devices with Preview of Android M showed double standby time than Lollipop, and its still a preview so we can expect more.
It supports USB Type C  which charges faster than normal ports,