What are Android Versions available?

The First Android version 1.0 was launched with T-Mobile G1 aka HTC Dream.

Every Android version was named in Alphabatical order. Current Latest version is 10 with the Name of Android-Q (API level is 29).

Name API Level  Release
Android 1.5, Cupcake 3 April 27, 2009
Android 1.6, Donut 4 September 15, 2009
Android 2.0-2.1, Eclair 5-7 October 26, 2009
Android 2.2-2.2.3, Froyo 8 May 20, 2010
Android 2.3-2.3.7, Gingerbread 9-10 December 6, 2010
Android 3.0-3.2.6, Honeycomb 11-13 February 22, 2011
Android 4.0-4.0.4, Ice Cream Sandwich 14-15 October 18, 2011
Android 4.1-4.3.1, Jelly Bean 16-18 July 9, 2012
Android 4.4-4.4.4, KitKat 19-20 October 31, 2013
Android 5.0-5.1.1, Lollipop 21-22 November 12, 2014
Android 6.0-6.0.1, Marshmallow 23 October 5, 2015
Android 7.0-7.1.2, Nougat 24-25 August 22, 2016
Android 8.0-8.1, Oreo 26-27 August 21, 2017
Android 9.0, Pie 28 August 6, 2018
Android 10.0, Android-Q 29 September 3, 2019