Next.js Slashes `next dev` Memory Usage by 90%, Devs Wonder What Turbopack Was Doing

jonathan_wilke · x · 2026-08-04

The Next.js team announced a massive 90% reduction in memory usage for the next dev environment, a game-changer for many projects. Developers are humorously questioning what the underlying bundler Turbopack was doing in previous versions to allow for such a massive optimization.

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