Cyanogen 13.1 adds Microsoft features to OnePlus One phones, the OS update now allows manufacturer to modify apps it couldn’t before. Cyanogen OS 13.1: The MOD Ready update, is a major step forward in the post-app era, with mods taking center stage. Mods are your favorite features, right where you expect them. The MOD platform now extends into Phone, Messaging, Camera, Lock Screen, Email, and more. This update includes mods for Skype, Hyperlapse, Twitter, Cortana, and OneNote.