TypeScript 7.0 Arrives with a Go-Based Compiler Rocketing Build Speeds by 10x.
TypeScript 7.0 Officially Released: Microsoft Unveils Go-Based Compiler Revamp Delivering a 10x Performance Boost Microsoft has officially announced the general availability of TypeScript 7.0 , marking one of the most radical architectural overhauls in the history of the widely adopted typed JavaScript superset. The headline advancement of this milestone release is a complete ground-up rewrite of the TypeScript compiler ( tsc ), moving away from its legacy codebase into a new, highly optimized architecture engineered entirely in Go . This shift yields a staggering 10x acceleration in compilation speeds alongside a massive reduction in runtime memory overhead. Despite the magnitude of this structural migration, Microsoft has mitigated stability concerns through an extensive internal and external validation pipeline. Prior to public release, the TypeScript team battle-tested version 7.0 across Microsoft’s largest enterprise-grade production codebases, including Microsoft Loop, Office, P...