Vercel
7/8/2026

Flags SDK now evaluates flags 10x faster
Short summary
Flags SDK and Vercel Flags now evaluate multiple feature flags in bulk approximately 10x faster by reducing microtask queue overhead and creating fewer promises. Use evaluate([flagA, flagB]) instead of Promise.all for the speedup, and precompute() benefits automatically. Upgrade to the latest versions to get started.
- •Bulk flag evaluation is ~10x faster via reduced microtask overhead
- •Use evaluate() instead of Promise.all() for multiple flags
- •precompute() automatically benefits from the optimization
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