Yes. Before 9.5 it was named checkpoint_segments, now it's called min_wal_size (reserved, won't go below) and max_wal_size (soft max space limit, will checkpoin

Yes. Before 9.5 it was named checkpoint_segments, now it's called min_wal_size (reserved, won't go below) and max_wal_size (soft max space limit, will checkpoint more frequently).