TypeScript 7 Is Here (And It's 10× Faster)

Anders Hejlsberg announces TypeScript 7, a complete rewrite of the TypeScript compiler in Go achieving 10x faster performance. The video demonstrates compiling the 2.3M-line VS Code codebase from 50 seconds down to under 5 seconds, utilizing shared-memory concurrency to leverage all CPU cores. It covers the new LSP-based language server providing instant references, squiggles, and startup while maintaining 99.99% compatibility with TypeScript 6.