---
title: Javascript-SDK - 1.4.3
slug: feature-experimentation/release-notes/javascript-sdk-1-4-3
docTags: 
createdAt: 2026-07-20T15:45:45.291Z
---

\* Default skipJSONValidation to true
\* Bump optimizely-server-sdk to version 1.3.3, which includes:
\- Removed JSON Schema Validator from Optimizely constructor
\- Updated SDK to use new event endpoint
\- Minor bug fixes

[https://github.com/optimizely/javascript-sdk/releases/tag/v1.4.3](https://github.com/optimizely/javascript-sdk/releases/tag/v1.4.3)