Here’s some aggregate data for September 2025 about WordPress CoreCore Core is the set of software required to run WordPress. The Core Development Team builds WordPress. contribution on TracTrac Trac is the place where contributors create issues for bugs or feature requests much like GitHub.https://core.trac.wordpress.org/..
Please note:
- These data only include code contributions to WordPress codebase, not contributions on GitHubGitHub GitHub is a website that offers online implementation of git repositories that can easily be shared, copied and modified by other developers. Public repositories are free to host, private repositories require a paid subscription. GitHub introduced the concept of the ‘pull request’ where code changes done in branches by contributors can be reviewed and discussed before being merged be the repository owner. https://github.com/ repositories such as GutenbergGutenberg The Gutenberg project is the new Editor Interface for WordPress. The editor improves the process and experience of creating new content, making writing rich content much simpler. It uses ‘blocks’ to add richness rather than shortcodes, custom HTML etc. https://wordpress.org/gutenberg/ (but it still include Gutenberg package merges and related backports).
- The committers data only includes commits to
trunk. Branch backports are not taken into account for now. - The raw data for this post are available on this public spreadsheet (opens in a new tab). You might find it easier to read.
- All the links for the graphics below open a new tab to display them in full size.
Releases of the month
WordPress 6.8.3 was released on September 30. WordPress 6.9 is underway.
General Trac overview
Ticket numbers are based on the Trac timeline for the period above.
In September 2025, the WordPress Core team shipped 189 commits (+16 compared to last month). 156 tickets were opened (+25), 182 tickets were closed (-20), and 14 were reopened (-12).
This month, 161 people contributed to WordPress source code using Trac (-1 compared to last month), and 35 people (-2) made their very first contribution to WordPress Core ♥️
Components activity
How did September’s commits break out by Core Component?
The most prolific components were:
| Component | Count | % |
|---|---|---|
| Build/Test Tools | 9 | 10% |
| Docs | 9 | 10% |
| Code Modernization | 5 | 6% |
| Posts, Post Types | 5 | 6% |
| Editor | 8 | 9% |
| External Libraries | 4 | 4% |
| BlockBlock Block is the abstract term used to describe units of markup that, composed together, form the content or layout of a webpage using the WordPress editor. The idea combines concepts of what in the past may have achieved with shortcodes, custom HTML, and embed discovery into a single consistent API and user experience. Bindings | 4 | 4% |
| Database | 4 | 4% |
| Bundled Themes | 4 | 4% |
| General | 3 | 3% |
| Menus | 3 | 3% |
| Charset | 3 | 3% |
| Upgrade/Install | 3 | 3% |
| Script Loader | 3 | 3% |
Contributors data retrieved from WordPress.orgWordPress.org The community site where WordPress code is created and shared by the users. This is where you can download the source code for WordPress core, plugins and themes as well as the central location for community conversations and organization. https://wordpress.org/ profiles
The data below comes from matching contributors’ usernames, as mentioned in Trac props, with their profiles on WordPress.org.
One caveat: this ignores usernames that did not match a profile on dotorg, plus any that had blank or unusable country/company information (“The Universe”, “Unicorn land” or “Planes, Trains, and Busses” are not known countries 🙂).
Countries stats
In September, people from at least 27 countries contributed to WordPress Core.
The next graphs show the number of props received by country and the number of contributors from each country. The top 10 countries, based on the number of props received, are these (evolution since last month is provided between parenthesis):
| Country | Contributions | Contributors |
|---|---|---|
| USA | 108 | 37 |
| India | 96 | 41 |
| Russia | 59 | 2 |
| Spain | 39 | 4 |
| Australia | 23 | 5 |
| Italy | 20 | 4 |
| France | 16 | 8 |
| Philippines | 8 | 1 |
| Switzerland | 8 | 1 |
| UK | 7 | 4 |
Click to open in a new tab.
Five for the Future related stats
In September, people from at least 57 different companies/organizations contributed to WordPress Core.
The next graphs show the number of props received by organization and the number of contributors from each organization. The top 10 organizations, based on the number of props received, are these (evolution since last month is provided between parenthesis):
| Company | Contributions | Contributors |
|---|---|---|
| Automattic | 86 | 18 |
| Yoast | 61 | 3 |
| rtCamp | 38 | 16 |
| Human Made | 18 | 3 |
| Whodunit | 14 | 6 |
| 14 | 3 | |
| The Open Sea | 13 | 1 |
| Accessible WD | 11 | 1 |
| 10up | 11 | 3 |
| Bluehost | 9 | 1 |
Click to open in a new tab.
What did September hold for Core Committers?
14 Core Committers committed code to the trunk branch in WordPress SVNSVN Apache Subversion (often abbreviated SVN, after its command name svn) is a software versioning and revision control system. Software developers use Subversion to maintain current and historical versions of files such as source code, web pages, and documentation. Its goal is to be a mostly compatible successor to the widely used Concurrent Versions System (CVS). WordPress core and the wordpress.org released code are all centrally managed through SVN. https://subversion.apache.org/. repository this month (-5 compared to last month).
Of the 85 commits to the trunk branch (-6 compared to the previous month), 33 (39%) were made by people working at Yoast, 14 (16%) from employees of Automattic.
| Account | Full Name | Commits | Organization | Country | Member since | % |
|---|---|---|---|---|---|---|
| sergeybiryukov | Sergey Biryukov | 33 | Yoast | Russia | 2007 | 39% |
| joedolson | Joe Dolson | 10 | Accessible WD | United States of America | 2008 | 12% |
| westonruter | Weston Ruter | 8 | WP Engine | United States of America | 2007 | 9% |
| swissspidy | Pascal Birschler | 7 | Switzerland | 2008 | 8% | |
| johnbillion | John Blackbourn | 6 | Human Made | United Kingdom | 2005 | 7% |
| jonsurrell | Jon Surrell | 5 | Automattic | Spain | 2011 | 6% |
| dmsnell | Dennis Snell | 4 | Automattic | United States of America | 2014 | 5% |
| bernhard-reiter | Bernhard Reiter | 3 | Automattic | 2008 | 4% | |
| desrosj | Jonathan Desrosiers | 3 | Bluehost | United States of America | 2009 | 4% |
| davidbaumwald | David Baumwald | 2 | Dream Encore | United States of America | 2016 | 2% |
| cbravobernal | Carlos Bravo | 1 | Automattic | Spain | 2017 | 1% |
| gziolo | Greg Ziółkowski | 1 | Automattic | Poland | 2016 | 1% |
| timothyblynjacobs | Timothy Jacobs | 1 | Liquid Web | United States of America | 2012 | 1% |
| spacedmonkey | Jonny Harris | 1 | Spacedmonkey | United Kingdom | 2009 | 1% |