applebloom [1] filed a deletion request for yafaray-experimental [2]: The package seems no longer needed. In the past, the DavidBluecame's repos contained a newer pre-release version of yafaray (and the blender exporter plugin), but those seem to be abandoned and the main repos, for which packages are already present on AUR, contain newer versions. Thus I think this package is obsolete and it's existence is only confusing for users (as it suggests it's something newer than the regular packages, when it's an older revision). [1] https://aur.archlinux.org/account/applebloom/ [2] https://aur.archlinux.org/pkgbase/yafaray-experimental/