TypeScript 5.4, a planned update to the strongly typed JavaScript variant from Microsoft, is now generally available. New capabilities in version 5.4 include preserved narrowing within function ...

Microsoft shipped the latest iteration of its type-infused superset of JavaScript, TypeScript 5.5, introducing inferred type predicates, control flow narrowing, JSDoc @import and other enhancements.

Microsoft has shared a progress update on TypeScript 7, codenamed Project Corsa, revealing a fundamental transformation of the TypeScript compiler. The update, published in December 2025, details the ...

TypeScript 6.0 is the last release built on the JavaScript codebase. A new --stableTypeOrdering flag lets developers match TypeScript 7.0 behavior. TypeScript 7.0, written in Go, is "extremely close ...