Do you all aware on the Blackberry Priv. In other words, Blackberry Privacy and Privilege. Actually, it has combined everything that you were expecting from Blackberry with a slide-out keyboard and running Google’s Android OS- the first device to Blackberry to do so.
In November 2015, Blackberry Priv was introduced to the market with Android 5.1.1 Lollipop. Then it was upgraded to Marshmallow in April 2016. But that is the place it will stay.

However, there is a disappointment this year for Blackberry Priv users. Alex Thurber, Blackberry General Manager confirmed that the Priv would not be upgraded from Marshmallow to Android 7.0 Nougat. Speaking to Blackberry fan site, UTB Blogs, Thurber said that the complex network of product partners will be getting difficult to actively contribute to the hypothetical update. Also, he confirmed the Blackberry Priv will officially remain on Android 6.0.1 Marshmallow.

What so ever, now Blackberry has the Blackberry KEYone to focus on further.

Source:http://www.androidpolice.com/2017/09/10/blackberry-confirms-priv-wont-get-android-nougat/