Since WordPress 3.0, released in June 2010, the themes bundled with WordPress core have been named twentysomething, starting from twentyten. The latest is twentyseventeen.
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- 2010
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- 2011
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- 2012
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- 2013
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- 2014
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- 2015
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- 2016
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- 2017
In case you’ve ever wondered, here’s a table of the themes bundled into core by WordPress version.
| WordPress | 2017 | 2016 | 2015 | 2014 | 2013 | 2012 | 2011 | 2010 |
|---|---|---|---|---|---|---|---|---|
| 4.7 | ||||||||
| 4.6 | ||||||||
| 4.5 | ||||||||
| 4.4 | ||||||||
| 4.3 | ||||||||
| 4.2 | ||||||||
| 4.1 | ||||||||
| 4.0 | ||||||||
| 3.9 | ||||||||
| 3.8 | ||||||||
| 3.7 | ||||||||
| 3.6 | ||||||||
| 3.5 | ||||||||
| 3.4 | ||||||||
| 3.3 | ||||||||
| 3.2 | ||||||||
| 3.1 | ||||||||
| 3.0 |
I’ve recently updated my dynamic API reference for Twenty Fourteen through to Twenty Seventeen. See wp-a2z.org.
Note: The main SVN repositories contain all of the above themes except 2016. I don’t know why 2016 is not included.
For more info on WordPress source see wordpress.org/download/source