---
title: Javascript-SDK - 5.3.3
slug: feature-experimentation/release-notes/javascript-sdk-5-3-3
docTags: 
createdAt: 2026-07-20T15:44:19.751Z
---

## \[5.3.3] - June 06, 2024

[#533---june-06-2024](docId\:F7jUxW_mCmhbEd0Lw3Nsh)

### Changed

[#changed](docId\:F7jUxW_mCmhbEd0Lw3Nsh)

- queueMicroTask fallback addition for embedded environments / unsupported platforms ([#933](https://github.com/optimizely/javascript-sdk/pull/933))

[https://github.com/optimizely/javascript-sdk/releases/tag/v5.3.3](https://github.com/optimizely/javascript-sdk/releases/tag/v5.3.3)