---
title: PHP-SDK - 1.5.0
slug: feature-experimentation/release-notes/php-sdk-1-5-0
docTags: 
createdAt: 2026-07-20T15:44:17.679Z
---

\- Added support for notification listeners.
\- Added support for IP anonymization.

[https://github.com/optimizely/php-sdk/releases/tag/1.5.0](https://github.com/optimizely/php-sdk/releases/tag/1.5.0)