This is the 2.0.5 release of IoTivity. It is certifiable against OCF Specifications v2.0.5 (a.k.a. "Essen") and the first official release using IoTivity Lite instead of IoTivity Classic. IoTivity Lite is a from-scratch implementation of the OCF Specifications, and has many advantages over the older IoTivity Classic. See https://iotivity.org/about-iotivity-lite for more.