1 - make private functions in libudev-device.c static
3 - delete mobile-action-modeswitch
4 (moved to usb_modeswitch)
6 - /run/udev/control socket
7 (add ConditionVirtualization=!pidns)
10 - no longer rename netif in kernel namespace
11 - do not create rules on-the-fly, require explicit
13 - drop persistent optical names
17 - remove deprecated trigger --type=failed logic
19 - remove deprecated BUS=, SYSFS{}=, ID= keys