Support for now.json will be removed on March 31, 2026

Support for the legacy now.json config file will be officially removed on March 31st, 2026. Migrate existing now.json files by renaming them to vercel.json, no other content changes are required.

For more advanced use cases, try vercel.ts for programmatic project configuration.

Learn more about configuring projects with vercel.json in the documentation.

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