diff --git a/cfg/tarantool_box_cfg.h b/cfg/tarantool_box_cfg.h
index 2c883bbdca2e158df55844ea6026cb1fa055c2a9..2e720df3886fcb3ff1ff8511b2504592cc156754 100644
--- a/cfg/tarantool_box_cfg.h
+++ b/cfg/tarantool_box_cfg.h
@@ -13,30 +13,6 @@
  * Autogenerated file, do not edit it!
  */
 
-typedef struct tarantool_cfg_space_index_key_field {
-	unsigned char __confetti_flags;
-
-	int32_t	fieldno;
-	char*	type;
-} tarantool_cfg_space_index_key_field;
-
-typedef struct tarantool_cfg_space_index {
-	unsigned char __confetti_flags;
-
-	char*	type;
-	confetti_bool_t	unique;
-	tarantool_cfg_space_index_key_field**	key_field;
-} tarantool_cfg_space_index;
-
-typedef struct tarantool_cfg_space {
-	unsigned char __confetti_flags;
-
-	confetti_bool_t	enabled;
-	int32_t	cardinality;
-	int32_t	estimated_rows;
-	tarantool_cfg_space_index**	index;
-} tarantool_cfg_space;
-
 typedef struct tarantool_cfg {
 	unsigned char __confetti_flags;
 
@@ -126,12 +102,6 @@ typedef struct tarantool_cfg {
 	/* Write no more rows in WAL */
 	int32_t	rows_per_wal;
 
-	/*
-	 * OBSOLETE
-	 * Starting from 1.4.5, this variable has no effect.
-	 */
-	int32_t	wal_writer_inbox_size;
-
 	/*
 	 * Defines fiber/data synchronization fsync(2) policy:
 	 * "none":           does not write to WAL
@@ -181,21 +151,6 @@ typedef struct tarantool_cfg {
 	 */
 	char*	custom_proc_title;
 
-	/* Memcached protocol support is enabled if memcached_port is set */
-	int32_t	memcached_port;
-
-	/* space used for memcached emulation */
-	int32_t	memcached_space;
-
-	/* Memcached expiration is on if memcached_expire is set. */
-	confetti_bool_t	memcached_expire;
-
-	/* maximum rows to consider per expire loop iteration */
-	int32_t	memcached_expire_per_loop;
-
-	/* tarantool will try to iterate over all rows within this time */
-	double	memcached_expire_full_sweep;
-
 	/*
 	 * Replication mode (if enabled, the server, once
 	 * bound to the primary port, will connect to
@@ -204,7 +159,13 @@ typedef struct tarantool_cfg {
 	 * only accepts reads.
 	 */
 	char*	replication_source;
-	tarantool_cfg_space**	space;
+
+	/*
+	 * 1.6 (default) or 1.5 (old) replication mode
+	 * If 1.5 mode is enabled, the replica will successfully
+	 * connect to 1.5 master
+	 */
+	char*	replication_protocol;
 } tarantool_cfg;
 
 #ifndef CNF_FLAG_STRUCT_NEW