[Official] First Lineage OS Builds Are Available For Nexus 6P And 5X With More On The List
Also, by default Lineage OS won't allow root, but the project will provide a separate flashable zip to root your device. That doesn't seem to be available yet.
Till yet, the devices which are supported are the Nexus 6P (angler), Nexus 5X (bullhead), Moto G4 and G4 Plus (athene), Nextbit Robin (ether), and Xiaomi Redmi 1S (armani). But don't worry there are more to come. The builds are renamed to 'lineage' instead of cm, and tagged with the same build number system as CyanogenMod's (14.1 stands for Nougat 7.1 and 13.0 stands for Marshmallow 6.0). Some builds are labeled as "experimental," these should be flashable on top of CM13 or CM14.1 builds for those who don't want to wipe clean and get started again.
There will be more devices to be supported, you can see the whole list of build targets here. And to download the builds, click on the links below this :