SAMSUNG smartphone owners can expect a slew of new features in the coming months, thanks to the gradual roll-out of Android 6.0 Marshmallow. And it looks like a bumper upgrade for Galaxy S6 Edge owners.

Samsung smartphone owners can expect to see Android 6.0 Marshmallow soon

Android 6.0 Marshmallow is Google's best update yet. Unfortunately, Samsung smartphone owners have not had a chance to test it out.
But that could be about to change.
A leaked document from inside Samsung and published by Mobipicker reveals when Galaxy smartphone owners can expect the upgrade.
The Galaxy S6, Galaxy S6 Edge and Galaxy S6 Edge+ are set to get the Android 6.0 upgrade in February or March, with the phablet set to receive the upgrade first.
Samsung's Galaxy Note 5, which failed to materialise in the UK, is also slated for a February release.
Meanwhile, the South Korean firm's 2014 flagship smartphone – the Galaxy S5 – will also get the bump to Android 6.0 in March or April.

This is around the same time as the Galaxy Note 4 and Galaxy Note Edge, according to the leaked documents from Mobipicker.
Earlier this week, a video of a Galaxy S6 Edge running Android Marshmallow appeared online.
Amongst the new security and in-app privacy features bundled in the Google update, Samsung has added some exciting new functionality for S6 Edge owners.
The beta shows some exciting new features for the Edge display, including a new My Places panel that lists your most recently used apps – and lets you quickly relaunch the software.

Contd. >>> http://newsnewsblog..com.ng/2016/01/major-samsung-galaxy-leak-android.html#0

I have a Samsung Galaxy Tablet-311, which was bought three years ago. Now there are many new products of the same type one after another, so I'm wondering is there a need to change for a new one? Is the difference between different models so significant?