---
title: Ruby-SDK - 4.0.0
slug: feature-experimentation/release-notes/ruby-sdk-4-0-0
docTags: 
createdAt: 2026-07-20T15:45:25.089Z
---

## [#400](docId\:Xz4Nug53VrtpXXhvXsUUL)4.0.0

August 4, 2022

### [#breaking-changes](docId\:Xz4Nug53VrtpXXhvXsUUL)Breaking Changes:

- Changed official supported versions of Ruby to 2.7, 3.0 and 3.1

[https://github.com/optimizely/ruby-sdk/releases/tag/4.0.0](https://github.com/optimizely/ruby-sdk/releases/tag/4.0.0)