| Code name | Version number | Initial release date | API level | Security patches |
|---|---|---|---|---|
| (No codename) | 1.0 | September 23, 2008 | 1 | Unsupported |
| (Internally known as “Petit Four”) | 1.1 | February 9, 2009 | 2 | Unsupported |
| Cupcake | 1.5 | April 27, 2009 | 3 | Unsupported |
| Donut | 1.6 | September 15, 2009 | 4 | Unsupported |
| Eclair | 2.0 – 2.1 | October 26, 2009 | 5 – 7 | Unsupported |
| Froyo | 2.2 – 2.2.3 | May 20, 2010 | 8 | Unsupported |
| Gingerbread | 2.3 – 2.3.7 | December 6, 2010 | 9 – 10 | Unsupported |
| Honeycomb | 3.0 – 3.2.6 | February 22, 2011 | 11 – 13 | Unsupported |
| Ice Cream Sandwich | 4.0 – 4.0.4 | October 18, 2011 | 14 – 15 | Unsupported |
| Jelly Bean | 4.1 – 4.3.1 | July 9, 2012 | 16 – 18 | Unsupported |
| KitKat | 4.4 – 4.4.4 | October 31, 2013 | 19 – 20 | Unsupported |
| Lollipop | 5.0 – 5.1.1 | November 12, 2014 | 21 – 22 | Supported |
| Marshmallow | 6.0 – 6.0.1 | October 5, 2015 | 23 | Supported |
| Nougat | 7.0 – 7.1.2 | August 22, 2016 | 24 – 25 | Supported |
| Oreo | 8.0 – 8.1 | August 21, 2017 | 26 – 27 | Supported |
| Android P | 9 | Developer preview; not yet supported | ||
|
Legend:
Old version
Older version, still supported
Latest version
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