For questions and issues on the usage and installation of LineageOS.
LineageOS is an open-source operating system for smartphones and tablet computers, based on the Android mobile platform. It is the successor to the highly popular custom ROM CyanogenMod, from which it was forked in December 2016 when Cyanogen Inc. announced it was discontinuing development and shut down the infrastructure behind the project.
LineageOS was officially launched on December 24, 2016, with the source code available on GitHub.
Since Cyanogen Inc. retained the rights to the Cyanogen name, the project rebranded its fork as LineageOS.
LineageOS 13 : for Android Marshmallow (6.0) ROM development
LineageOS 14.1 : for Android Nougat (7.x.x) ROM development