libnsl2 1.3.0 had libnsl.so.2 libnsl2 2.0.0 has libnsl.so.3 This issue was pointed out in BZ #2039220 prior to the errata without comment. This also breaks some applications that depend on the libnsl.so.2 name. --- https://access.redhat.com/downloads/content/libnsl2/2.0.0-1.el9/x86_64/fd431d51/package-changelog 2022-01-20 Alexander Bokovoy <abokovoy> - 2.0.0-1 - Rebase to upstream 2.0.0 release - Resolves: rhbz#2039220 2021-08-09 Mohan Boddu <mboddu> - 1.3.0-4 - Rebuilt for IMA sigs, glibc 2.34, aarch64 flags Related: rhbz#1991688