Documentation :

ℹ️ This new major version requires PHP ≥ 8.4 and is not backward compatible with previous versions, so the package is designed to be installed beside versions 8, 9, 10, 11, and 12.

Installation:

dnf --enablerepo=remi install phpunit13

Notice: This tool is an essential component of PHP QA in Fedora. This version should be available soon in the Fedora ≥ 43 official repository (19 new packages).