---
title: Java-SDK - 4.2.1
slug: feature-experimentation/release-notes/java-sdk-4-2-1
docTags: 
createdAt: 2026-07-20T15:45:00.703Z
---

## \[4.2.1]

[#421](docId:0fY20dH8jn0wF5wxyfnLb)

Feb 19th, 2025

### Fixes

[#fixes](docId:0fY20dH8jn0wF5wxyfnLb)

- Fix big integer conversion ([#556](https://github.com/optimizely/java-sdk/pull/556)).

[https://github.com/optimizely/java-sdk/releases/tag/4.2.1](https://github.com/optimizely/java-sdk/releases/tag/4.2.1)