[ Thanks to rayH for
this link. ]
“Udev lead developer Kay Sievers has said that the udev
component for managing devices and their kernel drivers will be
merged with the source code of systemd and will be developed within
this source tree. Working with Lennart Poettering, Sievers started
systemd, the alternative to sysvinit and upstart, almost two years
ago.“Sievers explained that it will still be possible to install
udev independently of systemd. He added that this option will be
supported in the long term because separate builds are required to
ensure that initrds (initial ramdisks), which don’t include
systemd, work correctly. Distributions that don’t use systemd can
continue to build udev as before, but will have to use the systemd
sources. With the addition of udev, systemd’s version will jump
from 45 to 184 to ensure that its version number is higher than
that of the last independent version of udev.”