Updated
Updated · InfoWorld · Jul 2
Microsoft Releases TypeScript 7.0 RC, Promising 10x Faster Builds
Updated
Updated · InfoWorld · Jul 2

Microsoft Releases TypeScript 7.0 RC, Promising 10x Faster Builds

2 articles · Updated · InfoWorld · Jul 2

Summary

  • TypeScript 7.0 release candidate is now available on npm, with Microsoft targeting a full release within the next month.
  • A Go-based port of the compiler makes the new version about 10 times faster than TypeScript 6.0 by using native code and shared-memory parallelism.
  • Parsing, type checking and emitting now run in parallel, which Microsoft said should scale especially well for larger codebases, though some build steps still resist parallelization.
  • Because a stable programmatic API will not arrive until TypeScript 7.1, Microsoft is prioritizing side-by-side use with 6.0 through the @typescript/typescript6 compatibility package and its tsc6 executable.

Insights

TypeScript 7.0's rewrite in Go promises 10x speed. Why are real-world gains so much lower, and who truly benefits?
As TypeScript abandons JavaScript for Go's native speed, is the era of JS-based development tools officially coming to an end?