🔗 Elixir 1.18's New "auto_reload" Option in IEx

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Christmas has come early - Elixir 1.18 has been released! Combined with the recent announcement that Phoenix LiveView has reached its long-awaited v1.0.0, it's a good time to be an Elixir developer.

Elixir 1.18 contains some major enhancements, which you can read about in the changelog, but here I'll focus on one minor new feature: IEx's new :auto_reload config option.

In short: IEx (Elixir's REPL console) can now automatically reload your code changes without you needing to call recompile(). It's a nice improvement, but there are some subtleties to be aware of, so let's go over them in detail.

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