---
title: Optimizely Feature Experimentation - application and migration
slug: feature-experimentation/docs/feature-experimentation-application-migration
docTags: 
createdAt: 2026-08-05T20:39:58.000Z
---

Optimizely Experimentation is evolving. Optimizely has released a redesigned application and API experience for Optimizely Full Stack with a new name, [Optimizely Feature Experimentation](https://www.optimizely.com/insights/blog/reintroducing-your-favorite-optimizely-products/). Since its launch in February 2021, the new Feature Experimentation experience has been the default experience for new projects and Free Rollouts accounts.

![](https://api.archbee.com/api/optimize/BrbvVORKJ5iIeSMZye5kI/GJxfRoXC91B1N-n2SvR5Y_79050f2-image.png)

Feature Experimentation offers simplified workflows, models, and [APIs](https://docs.developers.optimizely.com/feature-experimentation/reference/list_environments) for experimenting with and delivering new experiences to your end users. It also provides a significantly more performant editing and management experience when working with feature flags at scale.

## Feature Experimentation upgrade information

You can use the [self-service migration](docId\:rrvTN4un8zyv4_0ZgJB1q) in the UI or contact your Customer Success Manager for information on your project's upgrade eligibility.