# Which PHP version is supported by HBook and your themes?

We follow the minimum requirements for WordPress for PHP versions. You can find them [here](https://make.wordpress.org/core/handbook/references/php-compatibility-and-wordpress-versions/).

We always test HBook and our themes with any new PHP version. You may see “Deprecated” or “Warning” notice when a new PHP version is released. It is for developers to be able to modify their code to update to the latest PHP version. If you see them, it means that you are with “Debug” mode active.

> [!INFO]
> Please note that it is not recommended to have debug mode enabled on a live site.