- make "-/usr/bin/foo" non-fail

- find a way to tell udev to not cancel firmware

requests in initramfs

- scsi_id -> sg3_utils?

- move 'collect' and /dev/z90crypt to s390-utils

- split-off keymaps?

- make gtk-doc optional like kmod

- move /lib/udev/devices/ to tmpfiles

- trigger --subsystem-match=usb/usb_device

- kill rules_generator

- have a $attrs{} ?

- remove RUN+="socket:"

- libudev.so.1

- symbol versioning

- return object with *_unref()

- udev_monitor_from_socket()

- udev_queue_get_failed_list_entry()