Ubuntu developer Martin Pitt had done an announcement on his blog about the latest systemd 204-10ubuntu1 which has landed in Utopic.
systemd is a system management daemon designed to to replace the init system inherited from UNIX System V and Berkeley Software Distribution (BSD) operating systems. If a system uses systemd it means that it will be the first process to execute in user space during the Linux startup process.
Debian developers moved from Upstart to systemd and since Ubuntu is based on Debian every change they make affects Ubuntu development cycle.
You can read more here.