Also debdiff libsane_1.0.25-4.1_amd64.deb libsane_1.0.25-4.1+deb9u1_amd64.deb shows:
Files in first .deb but not in second ------------------------------------- -rw-r--r-- root/root /usr/lib/x86_64-linux-gnu/sane/libsane-dll.la -rw-r--r-- root/root /usr/lib/x86_64-linux-gnu/sane/libsane-dll.so.1.0.25 lrwxrwxrwx root/root /usr/lib/x86_64-linux-gnu/sane/libsane-dll.so.1 -> libsane-dll.so.1.0.25 sane-utils package seems ok, with the same files. Thanks!