Qubes OS 4.2.3

Qubes OS 4.2.3 has been released, consolidating all security patches, bug fixes, and updates since the previous stable version. This patch release provides users with an up-to-date ISO for new installations or clean reinstalls. Users already on any 4.2 version can update their system without reinstallation. The release also marks the end of support for Qubes 4.1, urging users to upgrade. Additionally, a new Release Signing Key for 4.2 has been introduced, requiring users to authenticate it. Full backup is strongly recommended before any updates or installations.