In zesty it appears the location is still the same:
# Default location of the slapd.conf file or slapd.d cn=config directory. If
# empty, use the compiled-in default (/etc/ldap/slapd.d with a fallback to
# /etc/ldap/slapd.conf).
Someone with more familiarity might be able to comment, but still need to look into the postinst to see if things are modified or not.
In zesty it appears the location is still the same:
# Default location of the slapd.conf file or slapd.d cn=config directory. If slapd.conf) .
# empty, use the compiled-in default (/etc/ldap/slapd.d with a fallback to
# /etc/ldap/
Someone with more familiarity might be able to comment, but still need to look into the postinst to see if things are modified or not.