Apple to release OS X 10.9 with new power-user features

OS X 10.9, which is internally codenamed “Cabernet,” will focus on various “power-user” enhancements and take core features from iOS, according to our sources. Unlike operating system updates such as OS X Leopard and OS X Lion, OS X 10.9 will likely not be an overhauled approach to how the operating system feels and functions.