From https://download.openzim.org/nightly/2025-10-25/libzim_linux-x86_64-2025-10-25.tar.gz
See kiwix/java-libkiwix#119 (comment) for more details
I suspect some kind of weakness in kiwix-build because with have version 9.4.0 in libzim and version 9.3.0 declared in kiwixbuild/versions.py.
A blocker for libzim release obviously