All android versions
all android versions and their names is listed below:
Cupcake (1.5)
Donut (1.6)
Eclair (2.0–2.1)
Froyo (2.2–2.2.3)
Gingerbread (2.3–2.3.7)
Honeycomb (3.0–3.2.6)
Ice Cream Sandwich (4.0–4.0.4)
Jelly Bean (4.1–4.3.1)
KitKat (4.4–4.4.4, 4.4W–4.4W.2)
Lollipop (5.0–5.1.1)
Android M (new up comming)
Here is Graph of which android version is most used in today by users:
Global Android version...