Elixir has a command `mix hex.outdated` that shows every library about to be updated, and links to an auto-generated page with the source diff between the curre

Elixir has a command `mix hex.outdated` that shows every library about to be updated, and links to an auto-generated page with the source diff between the current and latest version for each. It encourages auditing changes before updating. It's a great habit to take to avoid this kind of trouble.