Using systemd for more secure services in Fedora

I work on some projects which have this kind of thing. It's a maintenance nightmare. Because sometimes you want the new stuff if available, but still have a low minimum version, so projects end up with asking for the new stuff if available, but with the bad defaults of the older version. This seems like a sensible maintenance trade-off to me, but I'm also not a systemd developer either; maybe it'd be easier there too.