A more detailed version (with minor point releases) is at https://en.wikipedia.org/wiki/Android_version_history.
| API Level | Version Number | Code Name | Date | Notes | Lineage |
| 1 | 1.0 | 2008-09-23 | |||
| 2 | 1.1 | 2009-02-09 | |||
| 3 | 1.5 | Cupcake | 2009-04-30 | 3 | |
| 4 | 1.6 | Donut | 2009-09-15 | 4 | |
| 5 | 2.0 | Eclair | 2009-10-26 | 5 | |
| 7 | 2.1 | Eclair | 2010-01-12 | ||
| 8 | 2.2 | Froyo | 2010-05-20 | 6 | |
| 9 | 2.3 | Gingerbread | 2010-12-06 | Long the most widely-used version | 7 |
| 10 | 2.3 | Gingerbread | 2011-02-09 | ||
| 11 | 3.0 | Honeycomb | 2011-02-22 | Tablets only; source code release delayed | |
| 12 | 3.1 | Honeycomb | 2011-05-10 | ||
| 13 | 3.2 | Honeycomb | 2011-07-15 | ||
| 14 | 4.0 | Ice Cream Sandwich | 2011-10-19 | Merge tablet and phone support | 9 |
| 15 | 4.0.3 | Ice Cream Sandwich | 2011-12-16 | ||
| 16 | 4.1.2 | Jelly Bean | 2012-07-09 | 10 | |
| 17 | 4.2.2 | Jelly Bean | 2012-11-13 | 10.1 | |
| 18 | 4.3 | Jelly Bean | 2013-07-24 | 10.2 | |
| 19 | 4.4 | KitKat | Co-marketing deal with Nestle (makers of KitKat chocolate bar) | ||
| 21 | 5.0 | Lollipop | 2014-11-10 | ART replaces Dalvik | 12 |
| 22 | 5.1 | Lollipop | 2015-03-09 | ||
| 23 | 6.0 | Marshmallow | 2015-10-05 | Permissions changes | 13 |
| 24 | 7.0 | Nougat | 2016-08-22 | 14.0 | |
| 25 | 7.1 | Nougat | 2016-10-04 | 14.1 | |
| 26 | 8.0 | Oreo | 2017-08-21 | Co-marketing deal with Nabisco | 15 |
| 27 | 9.0 | Pie | 2018-08-06 | 16 | |
| 28 | 10 | Q | 2019-09-03 | 17 | |
| 30 | 11 | R | 2020-09-08 | 18 | |
| 31 | 12 | S | 2021-10-04 | 19 | |
| 32 | 12L | S | 2022-03-07 | 19 | |
| 33 | 13 | T | 2022-08-15 | 20 | |
| 34 | 14 | U | Q3 2023? | 21? |