Improvement to the VM or underlying stdlib that are API compatible are "free" But. Elixir maintain a 2 otp release compatibility. So the elixir stdlib cannot u

Improvement to the VM or underlying stdlib that are API compatible are "free" But. Elixir maintain a 2 otp release compatibility. So the elixir stdlib cannot use new functionality until the release of elixir in 2 years. You can, ofc, just call the erlang lib yourself. So on this one, you get the JIT or my float_to_string pretty printer speedup for free. But the Map module cannot use the new maps functions for 2 years.