---
title: Javascript-SDK - 4.0.0-rc.2
slug: feature-experimentation/release-notes/javascript-sdk-4-0-0-rc-2
docTags: 
createdAt: 2026-07-20T15:44:25.152Z
---

\## \[4.0.0-rc.2] - April 24, 2020

\### Bug fixes
\- Allow multiple instances to be created from the same datafile object (\[#462]\([https://github.com/optimizely/javascript-sdk/pull/462](https://github.com/optimizely/javascript-sdk/pull/462)))

[https://github.com/optimizely/javascript-sdk/releases/tag/v4.0.0-rc.2](https://github.com/optimizely/javascript-sdk/releases/tag/v4.0.0-rc.2)