For those interested, the Systemd release that’s planned to include the controversial ‘birthDate’ field to user records, complying with age-verification laws, is v261 (see ‘milestone’ in the pull request). This release seems to be planned for May.
The current release, from some hours ago, is v260.1. I see that Ubuntu Noble (24.04) just updated to v255.
It hasn’t been rolled back. You can go to the systemd repo and look at the main branch for yourself.
Here’s the commit. Just click through and see if the code was subsequently removed from any of the files. You’ll find that it wasn’t.
https://github.com/systemd/systemd/commit/7a858878a03966d2a65ef9e8f79b5caff352ac53