Zod 4 released: enhanced performance and new Zod Mini

After a year of active development, Zod latest version, Zod 4, is now stable and addresses several long-requested features. It introduces significant performance improvements including up to 14x faster string parsing, 7x faster array parsing, and a 2x reduction in core bundle size. To aid migration, Zod 4 is initially published alongside Zod 3 in the zod@3.25 release. Zod Mini, a variant with a tree-shakable, function-based API, is also now available.