---
title: PHP-SDK - 2.1.0
slug: feature-experimentation/release-notes/php-sdk-2-1-0
docTags: 
createdAt: 2026-07-20T15:45:07.933Z
---

See \[Changelog]\([https://github.com/optimizely/php-sdk/blob/2.1.x/CHANGELOG.md#210](https://github.com/optimizely/php-sdk/blob/2.1.x/CHANGELOG.md#210))

[https://github.com/optimizely/php-sdk/releases/tag/2.1.0](https://github.com/optimizely/php-sdk/releases/tag/2.1.0)