+ - kill rules_generator
+
+ - move udevadm -> --bindir
+
+ - remove deprecated trigger --type=failed logic
+
+ - remove deprecated BUS=, SYSFS{}=, ID= keys
+
+ - kill tabs?
+
+ - warn about RUN+="socket:"
+
+ - libudev.so.1 with symbol versioning:
+ - return object with *_unref()
+ - udev_monitor_from_socket()