Elixir 1.19 Released
elixir-lang.org·17h·
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Elixir v1.19 brings further improvements to the type system and compilation times, allowing us to find more bugs, faster.

Type system improvements

This release improves the type system around two key areas: type inference and type checking of anonymous functions and protocols. These enhancements seem simple on the surface but required us to go beyond existing literature by extending current theory and developing new techniques. We will outline the technical details in future articles. For now, let’s look at what’s new.

Type inference of all constructs

Type inference (or reconstruction) is the ability of a type system to automatically deduce, either partially or fully, the type of an expression at compile time. Type inference may occur at different levels. For example, …

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