Overview

You might be considering upgrading the PHP version of your environment due to different reasons such as the existing version being EOL (End of life), and you are wondering what is the latest PHP version compatible with Kayako Classic.

Information

One can find the PHP versions supported by Kayako Classic in the Kayako Classic Server Configuration and System Requirements article. However, please review in detail What is the latest version of Kayako Classic? (End of Engineering) before deciding to upgrade to PHP 8 as the latest Kayako Classic version supporting this PHP is deemed unstable.