---
title: Javascript-SDK - 3.4.1
slug: feature-experimentation/release-notes/javascript-sdk-3-4-1
docTags: 
createdAt: 2026-07-20T15:44:47.954Z
---

\## \[3.4.1] - January 28th, 2020

\### Bug fixes
\- Added \`getOptimizelyConfig\` and related types to TypeScript type definitions(\[#390]\([https://github.com/optimizely/javascript-sdk/pull/390](https://github.com/optimizely/javascript-sdk/pull/390))).

[https://github.com/optimizely/javascript-sdk/releases/tag/v3.4.1](https://github.com/optimizely/javascript-sdk/releases/tag/v3.4.1)