Flags SDK now evaluates flags 10x faster

Vercel announced a significant performance improvement to its Flags SDK, enabling flag evaluations to run 10 times faster than the previous version. This enhancement improves the speed of feature flag decision-making in applications, reducing latency when determining which features should be enabled or disabled for users. The upgrade likely benefits developers using Vercel's feature flag system by delivering faster response times in production environments.

Source: Vercel Blog | 2026-07-08