Most handle this by having release channels. You would `brew set-channel stable/edge`.

It annoyed me this week because I only had a few minutes to try elixir 1.20 after the announcement, and brew lagged behind. You can install erl and elixir by other means (I prefer to run my own toolchains) but it wasn’t worth doing in that moment.

Brew has or used to have a source option for some recipes and that basicallllly solves it too, if you squint.