---
title: Swift-SDK - 3.3.1
slug: feature-experimentation/release-notes/swift-sdk-3-3-1
docTags: 
createdAt: 2026-07-20T15:44:50.707Z
---

\## 3.3.1
March 30, 2020

\### Bug Fixes
\* When a datafile download for initialization returns connection errors, the SDK fails to initialize. This is fixed to continue initialization with a cached datafile. (\[#308]\([https://github.com/optimizely/swift-sdk/pull/308](https://github.com/optimizely/swift-sdk/pull/308)))
\* Events are not stored persistently in the tvOS devices. (\[#310]\([https://github.com/optimizely/swift-sdk/pull/310](https://github.com/optimizely/swift-sdk/pull/310)), \[#311]\([https://github.com/optimizely/swift-sdk/pull/311](https://github.com/optimizely/swift-sdk/pull/311)))

[https://github.com/optimizely/swift-sdk/releases/tag/v3.3.1](https://github.com/optimizely/swift-sdk/releases/tag/v3.3.1)