A new udev bugfix release is in testing. The main two fixes are
1) /dev/sr* devices are now again owned by the 'optical' group; and
2) if a rule uses an unknown (e.g. derpecated) key, the whole rule is
ignored rather than just the key. This should help a bit with people
who experience very weird things due to using deprecated keys.
However, bad things might still happen, so if you see any errors in
your logs you need to sort it out.
Please sign off both arches using the webinterface.