---
title: React-SDK - 2.3.1
slug: feature-experimentation/release-notes/react-sdk-2-3-1
docTags: 
createdAt: 2026-07-20T15:45:39.134Z
---

\## \[2.3.1] - October 5th, 2020
Upgrade \`@optimizely/optimizely-sdk\` to \[4.3.1]\([https://github.com/optimizely/javascript-sdk/releases/tag/v4.3.1](https://github.com/optimizely/javascript-sdk/releases/tag/v4.3.1)). Added support for version audience evaluation and datafile accessor. See \[@optimizely/optimizely-sdk Release 4.3.0]\([https://github.com/optimizely/javascript-sdk/releases/tag/v4.3.0](https://github.com/optimizely/javascript-sdk/releases/tag/v4.3.0)) for more details.

[https://github.com/optimizely/react-sdk/releases/tag/2.3.1](https://github.com/optimizely/react-sdk/releases/tag/2.3.1)