Hi everyone, this release includes type inference across applications and is our last step before v1.20. Please give it a try!

Here are some things to try out:

1. Before upgrading, run mix compile --profile time --force and see how long it takes
2. Run mix compile --profile time --force after upgrading and report

Please report the times and your Elixir version for each.

If you have some additional seconds, please try the following changes to your mix.exs. Run mix compile --profile time --force and report your times for each scenario independently, only on -rc.6:

1. elixirc_options: [infer_signatures: [:elixir]] (This makes it so we only use Elixir’s stdlib to infer signatures. I do not recommend it in practice but measuring it will help assess the impact of inference across apps)

2. elixirc_options: [module_definition: :interpreted] (Interprete module definitions when compiling modules, does not impact produced .beam files, it is OK to use it in prod)

Full release notes here: Release v1.20.0-rc.6 · elixir-lang/elixir · GitHub

Thank you!