$ git grep "max_wire_version <" | tee
auth.py:    if credentials.username is None and sock_info.max_wire_version < 5:
auth_aws.py:    if sock_info.max_wire_version < 9:
bulk.py:        if sock_info.max_wire_version < 5:
bulk.py:        if sock_info.max_wire_version < 6 and self.uses_array_filters:
change_stream.py:                            (exc._max_wire_version < 9 and
client_session.py:            if sock_info.max_wire_version < 13:
collection.py:            if sock_info.max_wire_version < 5:
collection.py:            if sock_info.max_wire_version < 6:
collection.py:            if sock_info.max_wire_version < 5:
collection.py:            if sock_info.max_wire_version < 5:
collection.py:            if sock_info.max_wire_version < 5:
collection.py:                if sock_info.max_wire_version < 6:
collection.py:                if sock_info.max_wire_version < 8:
message.py:        if sock_info.max_wire_version < 5 and self.collation is not None:
message.py:        if sock_info.max_wire_version < 4 and self.allow_disk_use is not None:
mongo_client.py:                        sock_info.max_wire_version < 8):
pool.py:        if (read_concern and self.max_wire_version < 4
pool.py:        elif self.max_wire_version < 5 and collation is not None:
topology.py:                if is_shutting_down or (err_ctx.max_wire_version <= 7):
topology_description.py:                and s.max_wire_version < common.MIN_SUPPORTED_WIRE_VERSION)