Udev will become part of systemd
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.