Skip to main content

Automate progressive rollouts with Vercel Flags

By Steven Van ·

Vercel Flags can now shift traffic to a new variant in scheduled stages, rather than holding a fixed split, from the dashboard or the CLI.

Vercel Flags now supports progressive rollouts: rolling out a feature to a growing percentage of users on a schedule, instead of a fixed split.

A weighted split holds a fixed distribution, such as 50/50, for the life of an experiment. A progressive rollout instead follows a predefined schedule of stages, each with its own target percentage and duration, gradually shifting traffic to the new variant. Staging the exposure this way lets a regression turn up on a small slice of users before it reaches everyone.

Progressive rollouts are available now in the dashboard and through the new vercel flags rollout CLI command. Read more in the Vercel Flags documentation.

Vercel
Vercel
The platform for frontend developers — deploy, preview, and scale web apps and AI agents with zero config.
View Vercel →

Read the original announcement →

Read Automate progressive rollouts with Vercel Flags on Creators Toolbox