Is Hugo using MarkdownBasic or MarkdownCommon?

According to it’s possible to switch from MarkdownBasic to MarkdownCommon.

output := blackfriday.MarkdownBasic(input)
output := blackfriday.MarkdownCommon(input)

Which is Hugo using and how can you make sure it’s using MarkdownCommon?

Hugo uses neither. Those are convenience methods used to get “common setups”. Hugo has its own setup, which is highly configurable from both site config and page front matter.

Oh, and don’t confuse MarkddownCommon with etc.

Hugo also supports mmark: