---
title: Swift-SDK - 3.4.0
slug: feature-experimentation/release-notes/swift-sdk-3-4-0
docTags: 
createdAt: 2026-07-20T15:45:07.326Z
---

\## 3.4.0
July 9, 2020

\### New Features
\* Add support for JSON feature variables. (\[#315]\([https://github.com/optimizely/swift-sdk/pull/315](https://github.com/optimizely/swift-sdk/pull/315)), \[#317]\([https://github.com/optimizely/swift-sdk/pull/317](https://github.com/optimizely/swift-sdk/pull/317)), \[#318]\([https://github.com/optimizely/swift-sdk/pull/318](https://github.com/optimizely/swift-sdk/pull/318)))
\* Add macOS Compatibility. (\[#332]\([https://github.com/optimizely/swift-sdk/pull/332](https://github.com/optimizely/swift-sdk/pull/332)))

\### Bug Fixes
\* Add more audience evaluation logs. (\[#336]\([https://github.com/optimizely/swift-sdk/pull/336](https://github.com/optimizely/swift-sdk/pull/336)))

[https://github.com/optimizely/swift-sdk/releases/tag/v3.4.0](https://github.com/optimizely/swift-sdk/releases/tag/v3.4.0)