---
title: React SDK v4+
slug: feature-experimentation/docs/javascript-react-sdk
docTags: 
createdAt: 2026-08-05T20:40:01.000Z
---

## Minimum SDK version

This documentation is for React SDK versions 4.0.0+.

For versions 3.x and earlier, see [React SDK prior to v4](docId\:g8fQvMhLJkZfLjDgCRPnY).

See the [SDK compatibility matrix](docId:2shbZfPCkPAZ0mlZpL1TU) documentation for a list of current SDK releases and the features they support.

## Quickstart

To get started, see the [React Quickstart](docId\:eH-UMm_rOn_GdGDGLV6__).

## Reference

For reference documentation, see the left-hand menu, or start by [installing the React SDK v4+](docId:4Ocp8_EYU66GvsPjqyZzz).

## Source files

- [React SDK repo on GitHub](https://github.com/optimizely/react-sdk)
- [changelog](https://github.com/optimizely/react-sdk/blob/master/CHANGELOG.md)