the one that has gained the most attention is systemd-homed:
A small new service systemd-homed.service has been added, that may be
used to securely manage home directories with built-in encryption.
The complete user record data is unified with the home directory,
thus making home directories naturally migratable.
There is also a new database for holding user and group data and a
systemd-repart tool for the management of partitions on storage-devices at
boot time.