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.
What’s stopping anyone like not filling it in or putting a false one in?
Nothing, and that’s legal, too. The new law only requires a method for putting in an age or birthdate, no age verification.