[Samba] Module error after Samba update

[John Gardeniers]

I've just done a yum update and a reboot on one of our CentOS 7 DCs, 
which has taken Samba from sernet-samba-4.5.1-6 to 
sernet-samba-4.5.5-13. I now notice that the Samba log files contain 
errors since the update.

The error message is:

"../lib/util/modules.c:48(load_module) Error loading module 
'/usr/lib64/samba/vfs/acl_xattr.so': 
/usr/lib64/samba/libsmbregistry-samba4.so: version 
`SAMBA_4.5.5_SERNET_REDHAT_13.EL7' not found (required by 
/usr/lib64/samba/vfs/acl_xattr.so)"

Obviously the pre-update dependency checks didn't work correctly. What 
is the easiest/best way to resolve it. Can I just roll back the Samba 
version on that box or is something else required? In the meantime, 
should I shut down that DC to prevent user problems?

regards,
John