MarsSeed [1] filed a deletion request for librdkafka1 [2]: Abandoned legacy version from 2022; no longer needed. Not a drop-in replacement for extra repo's current librdkafka. [a]
Last reverse dependencies on AUR were the EOL ceph-octopus and ceph- pacific; both got deleted on 2024-04-01. [a]: https://archlinux.org/packages/?q=librdkafka [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/librdkafka1/
