I noticed when trying it out for this comment, but then looked around when it was introduced and it seems recent (as in, an LTS distribution won't have it). Someone on stackoverflow said they get "unknown option --embed-resources". The old option will work for everyone and is also simpler, one instead of two parameters. People whose client supports the new option will see the upgrade suggestion when they run this. In the end I saw mainly downsides to mentioning the new rather than the old way