Robert Edmonds:
The relevant text from the policy manual, ยง9.11: [...]
The Debian Policy Manual never got updated in the wake of the Debian
systemd Hoo-Hah. It remains written from the viewpoint that System 5
init and rc are the defaults, and that upstart is a novelty addendum.
Several people in 2014 publicly proposed starting a Policy Manual
revision. They never finished, to my knowledge, and their proposals
remain part-done (to this day, as far as I know, although I haven't
re-checked since 2015). I didn't make a public announcement, and just
got on and did a rewrite. (-:
It is here, complete with SGML patch:
https://jdebp.eu./Proposals/DebianPolicy/
