Hi,
If a new .md file is inrodcued in docs.scala-lang_tour, what tool do we use to get different language translations for same like for es,ko et?
There is no tool, it’s done by hand.
Old translations inevitably drift out of date, we just hope someone will come by and update them one day.
In a pull request that alters a tour section, it’s okay to leave an existing translation in place. If the content is truly brand new, you still need to have a corresponding file in all the translations, but it can be a placeholder, like this one: