---
title: Javascript-SDK - 5.2.1
slug: feature-experimentation/release-notes/javascript-sdk-5-2-1
docTags: 
createdAt: 2026-07-20T15:44:28.385Z
---

## \[5.2.1] - March 25, 2024

[#521---march-25-2024](docId\:ernxJcZzUFj0j534pxlam)

### Bug fixes

[#bug-fixes](docId\:ernxJcZzUFj0j534pxlam)

- Fix: empty segments collection is valid ([#916](https://github.com/optimizely/javascript-sdk/pull/916))
- Update vulnerable dependencies ([#918](https://github.com/optimizely/javascript-sdk/pull/918))

[https://github.com/optimizely/javascript-sdk/releases/tag/v5.2.1](https://github.com/optimizely/javascript-sdk/releases/tag/v5.2.1)