Home / Faq / Supported Elixir and OTP Versions Supported Elixir and OTP Versions What versions of Elixir and OTP do you support? All versions of Elixir and OTP. See How do I specify my Elixir, Erlang, Node, NPM, etc versions? Some buildpacks don’t have the bleeding edge versions so those might not work, but they will eventually. This site uses cookies for analytics. Decline Accept