We have had CM12.1 unofficial roms for several devices for a while now, but CyanogenMod has finally released 12.1 official nightlies on several devices. This brings Android 5.1 along with some added features. Devices that have official builds include Nexus 7 wifi, Oppo Find 7s, Moto G, HTC One XL, HTC Droid DNA, Condor, and a long list of other devices. Devices are continually being added to the list as well. So far no nightlies are available for the most recent flagships like the S6 and M9, but those should come along soon as well. Head to the link below to see if your device is supported.
via CM