Next.js @nextjs.org ยท Jun 29 Filesystem Cache has been speeding up ๐๐๐ก๐ ๐๐๐ since 16.1, and now it works for ๐๐๐ก๐ ๐๐๐๐๐ too. By sharing the .๐๐๐ก๐ directory between CI runs, Turbopack can read existing entries from disk. We've seen builds run up to 5.5x faster on the warm path.
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React Compiler used to run as a Babel transform, which meant Turbopack spun up a Node.js worker and re-parsed every file. The React team's new Rust port drops that overhead. When enabled, Turbopack route compilation got 20 to 50% faster in tests on apps like v0.