The Devices which are Compatible for running Android Marshmallow ( According to the Manufactures ) will get the Latest Android version Officially , While other devices will Rely on Cyanogenmod 13 ( Cm 13 ) Custom Rom which is based on Android 6.0 Marshmallow .
Cyanogenmod has not officially revealed , when its going to Announce the new Cyanogenmod 13 . But According to Calculations , the release date of Cm13 will be - November 2015 and final build will be released around April 2016 .
Some of the Popular devices will officially get Cyanogenmod 13 , just after release . While other Devices will get Cyanogenmod 13 when their developers will Build it from source .