Android Marshmallow

              Android 6.0 "Marshmallow" is an upcoming update to the Android mobile operating system, most likely to be released in Q3 2015 ("tentatively slated for September"), with its third and final preview released on August 17, 2015.

             Marshmallow will primarily focus on improving the overall user experience, and will bring a few features such as a redesigned permission model in which applications are no longer automatically granted all of their specified permissions at installation time, Doze power scheme for extended battery life when a device is not manipulated by the user, and native support for fingerprint recognition.

These Features are new that we will look out for :

1.  Android Pay

                   With the arrival of Apple Pay and Samsung Pay, Google is revamping its own mobile payment service it actually introduced back in 2010 with Android Gingerbread. Compatible with phones running on Android KitKat and above, Android Pay will let you walk into stores and tap on an NFC terminal to pay for products.
                     The process works by creating a virtual account number, which mean your actual number is not shared with the retailer. This aims to make the process more secure. It's set to work with 700,000 stores in the US and will work with existing credit and debit cards from the likes of Mastercard. For developers, they'll now also be able to introduce Android Pay inside apps to make purchasing quicker and easier.

      2.  Finger Tip support

                    Fingerprint sensors have already popped up here and there on Android phones, but soon, they're probably going to be everywhere. That's because Google is building dedicated support for fingerprint sensors into Android, so that phone makers don't have to code it all in on their own. That means your next Android phone will likely let you use a fingerprint sensor to unlock your phone, make payments, and log into various apps and services. Basically, it's going to be a huge convenience for both the people making Android phones and the people using them.

      3.   App Permissions 

                  

                       We've all been there before. You go to install an app in the Google Play store and you're met with a long list of things the developer wants access to. To make it easier for users to keep track of what phone features can be accessed, permissions will now sit in specific categories like Sensor, Camera and Location.
                       Google used WhatsApp already downloaded to a phone as an example to showcase the new feature. When you need to use the microphone for a voice message, an app permission will appear prior to using the feature. If you grant access, you'll then be able to make a call.
Additionally, if you want to have a better idea of what app permissions you've granted, you'll now be able modify permissions within the phone settings.

      4.   Doze

                 

                       In a bid to hopefully give your battery life a boost, Android Marshmallow is introducing a feature that recognise when the Android device is in a rested state to help conserve power. Google says it has tested it with a Nexus 9 and claims it can help make battery life last two times longer in standby mode by using fewer background services. If you're worried about missing out on alarms and incoming instant messages, Doze will still allow those notifications and modes to be activated.

We will update this Article when we recieve more confirmed updates about the features of Android Marshmallow.