Android 6.0 release (Marshmallow).
Android 5.0 release (Lollipop).
Android 4.4 release (KitKat).
Android 4.3 release (Jelly Bean).
Android 4.0 release (Ice Cream Sandwich).
Android 3.2 release (Honeycomb).
Android 2.3 release (Gingerbread).
Android 2.2 release (Froyo).
Android 2.1 release (Eclair).
Android 1.6 release (Donut).
Android 1.5 release (Cupcake).