neither cups cup-filters or samba[cups] creates a smb backend which makes it impossible to connect cups to a remote smb printer. I cannot find any deprecation notices, only some documentation that says ipp is less prone to errors. I have worked around with ln -s $(which smbspool) /usr/libexec/cups/backend/smb which fixes the problem. I am not sure which package should supply this link but on my system nothing does.
This is still an issue. Any ideas on someone taking it up?
Fixed since samba 4.2.9 *** This bug has been marked as a duplicate of bug 552310 ***