Just for completeness sake: you can ‘go back’ if you still have the old version installed. The homebrew command for this is brew switch <package> <version>, so in your case brew switch elixir 1.4.4. I also agree with previous comments, asdf is a nice version manager

Hi @jononomo,

I’m not sure about Docker and I know homebrew supports “downgrading” to older versions of installed packages globally but I would highly recommend using a version manager such as asdf (https://github.com/asdf-vm/asdf ) instead. This allows you to have multiple copies of erlang, elixir, and nodejs (among many other languages) installed simultaneously on your Mac. You can then switch between those versions globally and/or on a per-project basis using a simple .tool-versions file.

This makes it a breeze to upgrade or test Elixir 1.5 and Erlang/OTP 20.0 but still use the older known working versions for all of your existing projects and be able to switch between the versions with ease.

Kiex is also worth mentioning.

Hello guys I already have installed elixir with homebrew.
But for learn and I want to change the version of elixir and so I think to manage this I needed to install the asdf manager. But I already have installed elixir with homebrew.
So I just see this Post and I notice it’s possible to switch with homebrew.
So for instal or downgrade another versions of elixir. What I need to do with homebrew?
It’s better use this asdf manager?

Thanks for a great tip, @tme_317 !