Next.js 16.3 with Turbopack changes two real things: it speeds up incremental compilation in development through function-level caching, and it stabilizes `next build --turbopack`. What it does not automatically change is the RAM your production server consumes.
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What actually changes with Turbopack
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Production builds are no longer experimental
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Memory: dev and production are two different stories
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When to migrate (and when not to)
Not sure if migrating to Turbopack is worth it for your production app? Blurtek audits your real config before recommending anything.
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