About how long do I have before blackfriday is unavailable as part of Hugo? Or rather, what would have to change/break to cause blackfriday to be removed?
I ask because while goldmark seems like a fine library, it’s currently missing return-to-where-the-footnote-was links in the footnotes (the sort of thing you can change with footnoteReturnLinkContents). Someone — possibly me — would have to add that functionality to goldmark and wait for that version of goldmark to make it back into Hugo before I’d want to switch to goldmark.
I also noted the missing footnoteReturnLinkContents.
At the moment I am setting the footnote return link manually (thankfully I have very few footnotes).
The indication about “Blackmark deprecation in the future” is vague. I heard that Hugo using mmark/blackfriday v1 is preventing Debian/Ubuntu to update to v2 of BF, so that may the heat that makes us remove it eventually.