> For the complete documentation index, see [llms.txt](https://docs.hypertune.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.hypertune.com/concepts/progressive-rollouts.md).

# Progressive rollouts

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A progressive rollout is a `Test` [experiment](/concepts/experiments.md) with a single dimension and one arm with traffic allocation.

To create a progressive rollout, insert an `Experiment` expression in your flag logic. Navigate to the experiment page from the dropdown and set the Control arm percentage to 0%. Navigate back to your logic and ensure the flag is enabled for the Test arm but disabled for the Control and Default arms.