Android Version History

The version history of the Android mobile operating system began with the release of the Android alpha in November 2007. The first commercial version, Android 1.0, was released in September 2008. Android is continually developed by Google and the Open Handset Alliance (OHA), and has seen a number of updates to its base operating system since the initial release.

The most recent major Android update is Android 6.0 "Marshmallow", which was released in October 2015. Since April 2009, Android versions have been developed under a confectionery-themed code name and released in alphabetical order, beginning with Android 1.5 "Cupcake"; the earlier versions 1.0 and 1.1 were not released under specific code names:

• 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)^[a]
• 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)
• Marshmallow (6.0)

On September 3, 2013, Google announced that one billion activated Android devices were in use worldwide.^[2] In June 2015, Android devices that accessed the Internet accounted for 59.1% of the worldwide smartphone and tablet market, 68.3% of the Chinese market, and 40.78% of the US market.^[3]

^{From Wikipedia}