Summary
Vercel added progressive rollouts to Vercel Flags, letting teams shift traffic toward a new variant on a schedule instead of holding a fixed split. The update adds a safer release pattern for AI features, model changes, and other risky production experiments inside the Vercel stack.
What changed
Vercel Flags added scheduled progressive rollouts and a new vercel flags rollout CLI command.
Why it matters
Teams shipping AI features often need to test prompt, model, or policy changes without exposing all users at once. By baking staged rollout controls into its own platform, Vercel is making release governance a native developer workflow instead of a separate feature-flag purchase.
Evidence excerpt
Vercel said teams can now use Vercel Flags to roll out a feature to a growing percentage of users on a schedule, with progressive rollouts, available in the dashboard and through a new CLI command.