This is simple but I keep needing to look it up.
First check your elixir version:
Second confirm that you actually installed Elixir using brew:
brew list | grep elixir
Third do the upgrade:
brew upgrade elixir
Note: You are probably going to find more than just elixir itself is upgraded. Theoretically you should be able to look at just the upgrade tree with:
brew deps --tree --include-build elixir
and only those things will be upgraded but when I noted a much larger group of packages being upgraded which makes me suspect some kind of circular dependency that needed to be handled.
Fourth check the version again:
Posted In: #elixir