TypeScript 7.0 Beta has arrived, and it's not just an incremental update—it's a complete architectural revolution. Built on a new Go foundation, Microsoft claims a 10x performance improvement over TypeScript 6.0. After testing the beta extensively, I can confirm: the speed gains are real, and they're game-changing for large-scale TypeScript projects. The Big Rewrite: TypeScript in Go For over a decade, TypeScript has been bootstrapped in TypeScript itself, compiling to JavaScript. While this worked well, it had fundamental limitations when it came to parallelization and raw performance. TypeScript 7.0 changes everything by rewriting the compiler in Go.…