The WordPress core development team builds WordPress! Follow this site for general updates, status reports, and the occasional code debate. There’s lots of ways to contribute:
Make sure you have two-factor auth enabled for GitHub, Slack, and the email account associated with your w.org account. It’s also a very good idea to enable it for any service you use, since hackers will often leverage access to a low priority account to gain access to a high priority account.
Join the #core-committers channel on Slack. This channel is for onboarding and questions from committers about the act of committing, tips and tricks for SVN, etc. You’re welcome and encouraged to ask here whenever you have a question about committing (e.g., SVN syntax, backports, etc). Anything that is relevant to non-committers (e.g., whether or not a patch is ready for commit, project philosophy, proposals, etc) should still take place in #core to avoid excluding other contributors.
Please add svnusername@git.wordpress.org (e.g.pento@git.wordpress.org) to your GitHub account: https://github.com/settings/emails . This will allow the new GitHub mirror (https://github.com/WordPress/wordpress-develop) to correctly attribute your commits. GitHub will try to send a verification email, but it won’t be delivered. There’s no need to verify this email address for commit attribution purposes.
Please ask a relevant committer to peer-review your first few prospective patches and commit messages before you commit them. This serves as a safety check to make sure you know what to look out for before you actually commit. It also gives you a chance to ask any questions you have about process, standards, norms, etc.
It can also be a good idea to ask for peer-review from another committer whenever you have any doubts about a patch, especially if you’re committing outside an area that you normally work on.
Tasks to add a committer
Ensure the committer has completed the above steps.
On a WordPress.org Sandbox, add them to the following lists:
/home/svn/etc/develop.svn.wordpress.org in Deploy SVN
$committers in .config/capes.php
wpTracContributorLabels in the Trac SVN file templates/core/site-specific.html