---
title: Swift-SDK - 3.8.1
slug: feature-experimentation/release-notes/swift-sdk-3-8-1
docTags: 
createdAt: 2026-07-20T15:45:32.739Z
---

## 3.8.1

August 6, 2021

### Bug Fixes

Remove lazy initializations for thread safety. (\[#422]\([https://github.com/optimizely/swift-sdk/pull/422](https://github.com/optimizely/swift-sdk/pull/422)))

[https://github.com/optimizely/swift-sdk/releases/tag/v3.8.1](https://github.com/optimizely/swift-sdk/releases/tag/v3.8.1)