Qubes OS 4.2.4

Qubes OS 4.2.4 is a stable patch release that consolidates all security updates, bug fixes, and improvements since the previous version. It includes an upgraded Fedora template (from Fedora 40 to 41) and provides an updated ISO for new installations or reinstallations. Users on Qubes 4.2.x can update normally without reinstalling, while those on Qubes 4.1 or earlier must upgrade due to end-of-life status. A new Release Signing Key (RSK) has been introduced for security reasons. The release follows semantic versioning, ensuring that a fully updated Qubes 4.2.0 system is functionally equivalent to Qubes 4.2.4.