---
title: Android-SDK - 3.5.1
slug: feature-experimentation/release-notes/android-sdk-3-5-1
docTags: 
createdAt: 2026-07-20T15:45:24.799Z
---

\## 3.5.1
April 29th, 2020

\### Bug Fixes
\* Change FeatureVariable type from enum to string for forward compatibility (upgrade the core java-sdk to 3.4.3).

[https://github.com/optimizely/android-sdk/releases/tag/3.5.1](https://github.com/optimizely/android-sdk/releases/tag/3.5.1)