Android Operating system History/Details

Android Beta(2007 November,5^th) [Android birthday]

Android1.0 (23, September 2008) [API Level-1]

Android1.1 Petit Four (9, February 2009)       [API Level-2]       

Android1.5 Cup cake (27, April 2009) [API Level-3]

Android1.6 Donut (15, September [API Level-4]

Android2.0 Éclair (26, October 2009) [API Level-5]

Android2.0.1 Éclair (3, December 2009) [API Level-6]

Android2.1 Éclair (12, January 2010) [API Level-7]

Android2.2-2.2.3 Froyo (20, May 2010) [API Level-8]

Android2.3-2.3.2 Gingerbread (6, 2010) [API Level-9]

Android2.3.3-2.3.7 Gingerbread (9, February 2011) [API Level-10]

Android3.0 Hony Comb (22, February 2011) [API Level-11]

Android3.1 Hony Comb (10, May 2011) [API Level-12]

Android3.2 Hony Comb (15, July 2011) [API Level-13]

Android4.0-4.0.2 Ice cream sandwich (19, October 2011) [API Level-14]

Android4.0.3-4.0.4 Ice cream sandwich (16, December 2011) [API Level-15]

Android4.1 Jelly Bean (27,June 2012) [API Level-16]

Android4.2 Jelly Bean (29, October 2012) [API Level-17]

Android4.3 Jelly Bean (29,July 2013) [API Level-18]

Next Android Version Relese=> Android5.0 Key Lime Pie