How do I know which library to use with HeidiSQL?

I've been using HeidiSQL for about a year, but the new version has a "Library" option that I've not used before.

These are the options from that menu:

libmariadb.dll

libmysql-6.1.dll

libmysql.dll

I'm using MYSQL, so I'm guessing it's one of the second two options--but how do know which?

https://stackoverflow.com/a/59574750