MarsSeed [1] filed a deletion request for nettle4 [2]: Deprecated legacy version. Hasn't been updated in 7 years. Confusing package name: nettle4 but package is at v2.7. Insecure, no one should use this old version. Nothing depends on this in AUR. Safe to delete. [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/nettle4/