---
title: Javascript-SDK - 1.4.2
slug: feature-experimentation/release-notes/javascript-sdk-1-4-2
docTags: 
createdAt: 2026-07-20T15:44:23.738Z
---

\* Minor performance improvements.

[https://github.com/optimizely/javascript-sdk/releases/tag/v1.4.2](https://github.com/optimizely/javascript-sdk/releases/tag/v1.4.2)