Sony Xperia Z5 phone to get Android 6.0 Marshmallow fix by January 2016; Other versions soon after

As per @Ricciolo1, a well-known leakster, Sony is aiming to upgrade its Xperia Z5 series to Android 6.90 Marshmallow in January and for older models the same update is planned shortly after the Z5. Marshmallow comes with a bunch of improvements, optimizations and features that'd be very useful to any smartphone. Battery life improvements and performance boosts are the most noticeable changes to the software. But this is a rumour; nothing is fixed and there is no solid timeline. So ta