Android N Developer Preview, an early beta of Google’s new mobile operating system that was expected to launch on Google I/O in mid-May, is unexpectedly launching right now.

Android N Developer Preview for the Nexus 6P, Nexus 5X, Nexus 6, Pixel C Nexus 9, the Nexus Player and the General Mobile 4G, an Android One device has been made available as an over-the-air update by Google on Wednesday.