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

Vercel announces the removal of legacy now.json config file support on March 31, 2026.

• •The now.json configuration file will be officially deprecated and removed on March 31, 2026
• •Migration requires only renaming now.json to vercel.json, with no content changes needed
• •For advanced use cases, vercel.ts is available for programmatic project configuration