Since this is an extension for Joomla, it’s highly recommended always to use the latest stable version of Joomla to ensure compatibility, security, and bug fixes. This component works seamlessly with Joomla 6 and 5.x. Support for Joomla 4 ended in October 2025. 

• PHP:  8.x (recommended)
• MySQL:   8.x (recommended)
• Server: 64-bit server required. PHP 8 provides full 64-bit support, including native 64-bit integers, LFS, and increased memory limits.
• PHP upload_max_filesize = 3M or more.

Browser Recommendations:

• For the best editing experience, use the latest versions of modern browsers, such as Safari, Chrome, Firefox, Opera, Microsoft Edge, or Brave.

Note: Support for Internet Explorer is limited.

Also, see the basic requirements of Joomla 6.