The VirtualBox VNC extension pack package (virtualbox-ext-vnc) has changed how it installs files starting with version 7.2.12-2 on Arch Linux. Previously, files were installed via VBoxManage outside of pacman's awareness, causing potential upgrade conflicts. Three workarounds are provided: uninstall and reinstall the package, manually uninstall the VNC extpack via VBoxManage before upgrading, or force pacman to overwrite existing files using the --overwrite flag.
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