Elixir v1.20: 이제 점진적 타입 언어

Elixir v1.20 introduces gradual typing without breaking backward compatibility, enabling developers to catch type-related bugs and dead code even in untyped codebases. This solves a long-standing gap in the Elixir ecosystem by providing safety guarantees without the runtime overhead that plagues other gradually-typed systems. With improved compilation performance and novel type narrowing through guards and pattern matching, Elixir becomes more accessible to teams migrating from statically-typed languages while retaining its dynamic flexibility.