Official announcement: https://elixir-lang.org/blog/2016/01/03/elixir-v1-2-0-released/ 1. Enhancements Elixir [Application] Add spec/1 and spec/2 to retrieve application specification [Application] Add get_application/1 to retrieve the application a given module belongs to [Base] Optimize encode and decode operations about 10 times [Enum] Use the faster and auto-seeding :rand instead of :random in