INTRODUCING ZOD 4

Summary from the TLDR Web Dev newsletter

Zod is a schema declaration and validation library that simplifies data validation in TypeScript and JavaScript. Zod 4 is now stable after a year of development, with improved speed, reduced size, and better TypeScript efficiency. The improvements include performance gains in parsing, reductions in TypeScript instantiations and core bundle size, as well as new features like Zod Mini for minimal bundle sizes and a metadata system.