Last year Google has announced Android 6.0 Marshmallow and recently reports from Google Marshmallow is only 0.5% of active devices even after the release of its newly announced devices from Huawei and LG, Nexus 6P and Nexus 5x.  and Android 6.1 Marshmallow rumors has started to gear up
android Marshmallow is only on 0.5%

anticipated waiting Split screen functionality will be in Android N which is confirmed by the Google Pixel Team on the Reddit Ask Us Anything session.

 

“We’re working on lots of things right now for N that, of course, we wish we had, you know, yesterday. But we’d spoil the surprise of N if we shared all of them. Split screen is in the works!”

— Andrew Bowers, Director for Consumer Hardware

 

 

However, the rumor claims that Android 6.1 Marshmallow will keep Android Marshmallow nickname. So wait and lets see if Google change its name for upcoming split screen functions or go with the same name or com up with something new name.

Google may come up with a new Android name as their I/O around June 2016, and  Google already have confirmed that they’ll release an major update to Android Every year