diff --git a/src/client/nclient.c b/src/client/nclient.c
index 6c11020..6cc5fda 100644
--- a/src/client/nclient.c
+++ b/src/client/nclient.c
@@ -945,15 +945,15 @@ int Net_start(int sex, int race, int class) {
 		Packet_printf(&wbuf, "%c%c", Client_setup.u_attr[i], Client_setup.u_char[i]);
 
 	/* Send the "feature" redefinitions */
-	for (i = 0; i < MAX_F_IDX; i++)
+	for (i = 0; i < MAX_F_IDX_COMPAT; i++)
 		Packet_printf(&wbuf, "%c%c", Client_setup.f_attr[i], Client_setup.f_char[i]);
 
 	/* Send the "object" redefinitions */
-	for (i = 0; i < MAX_K_IDX; i++)
+	for (i = 0; i < MAX_K_IDX_COMPAT; i++)
 		Packet_printf(&wbuf, "%c%c", Client_setup.k_attr[i], Client_setup.k_char[i]);
 
 	/* Send the "monster" redefinitions */
-	for (i = 0; i < MAX_R_IDX; i++)
+	for (i = 0; i < MAX_R_IDX_COMPAT; i++)
 		Packet_printf(&wbuf, "%c%c", Client_setup.r_attr[i], Client_setup.r_char[i]);
 #endif
 
diff --git a/src/common/defines.h b/src/common/defines.h
index 95680f7..66244dd 100644
--- a/src/common/defines.h
+++ b/src/common/defines.h
@@ -565,21 +565,36 @@
 /*
  * TODO: make them redefinable w/o client update
  */
- 
+
 #define MAX_F_IDX	256	/* Max size for "f_info[]" */
-#define MAX_K_IDX	1024 	/* Max size for "k_info[]" */
+#define MAX_K_IDX	1280	/* Max size for "k_info[]" */
 #define MAX_A_IDX	512	/* Max size for "a_info[]" */
-#define MAX_E_IDX	256 	/* Max size for "e_info[]" */
-#define MAX_R_IDX	1152	/* Max size for "r_info[]" */
+#define MAX_E_IDX	384	/* Max size for "e_info[]" */
+#define MAX_R_IDX	1280	/* Max size for "r_info[]" */
 #define MAX_V_IDX 	256	/* Max size for "v_info[]" */
 #define MAX_RE_IDX	128	/* Max size for "re_info[]" */
 #define MAX_T_IDX	256	/* Max size for "t_info[]" */
-#define MAX_OW_IDX	96	/* Max size for "ow_info[]" */
-#define MAX_ST_IDX	96	/* Max size for "st_info[]" */
+#define MAX_OW_IDX	128	/* Max size for "ow_info[]" */
+#define MAX_ST_IDX	128	/* Max size for "st_info[]" */
 #define MAX_BA_IDX	96	/* Max size for "ba_info[]" */
 #define MAX_D_IDX	64	/* Max size for "d_info[]" */
 #define MAX_Q_IDX	100	/* Max size for "q_info[]" */
 
+/* for compatibility with 4.5.8.1- clients: */
+#define MAX_F_IDX_COMPAT	256
+#define MAX_K_IDX_COMPAT	1024
+#define MAX_A_IDX_COMPAT	512
+#define MAX_E_IDX_COMPAT	256
+#define MAX_R_IDX_COMPAT	1152
+#define MAX_V_IDX_COMPAT 	256
+#define MAX_RE_IDX_COMPAT	128
+#define MAX_T_IDX_COMPAT	256
+#define MAX_OW_IDX_COMPAT	96
+#define MAX_ST_IDX_COMPAT	96
+#define MAX_BA_IDX_COMPAT	96
+#define MAX_D_IDX_COMPAT	64
+#define MAX_Q_IDX_COMPAT	100
+
 /* Max ego base type restrictions */
 #define MAX_EGO_BASETYPES	10
 
diff --git a/src/server/nserver.c b/src/server/nserver.c
index de898b7..e971537 100644
--- a/src/server/nserver.c
+++ b/src/server/nserver.c
@@ -3872,8 +3872,8 @@ static int Receive_login(int ind) {
 	return(0);
 }
 
-#define RECEIVE_PLAY_SIZE (2*6+OPT_MAX+2*(TV_MAX+MAX_F_IDX+MAX_K_IDX+MAX_R_IDX))
-#define RECEIVE_PLAY_SIZE_OPTMAXOLD (2*6+OPT_MAX_OLD+2*(TV_MAX+MAX_F_IDX+MAX_K_IDX+MAX_R_IDX))
+#define RECEIVE_PLAY_SIZE (2*6+OPT_MAX+2*(TV_MAX+MAX_F_IDX_COMPAT+MAX_K_IDX_COMPAT+MAX_R_IDX_COMPAT))
+#define RECEIVE_PLAY_SIZE_OPTMAXOLD (2*6+OPT_MAX_OLD+2*(TV_MAX+MAX_F_IDX_COMPAT+MAX_K_IDX_COMPAT+MAX_R_IDX_COMPAT))
 //#define STRICT_RECEIVE_PLAY
 static int Receive_play(int ind) {
 	connection_t *connp = Conn[ind];
@@ -4089,7 +4089,7 @@ static int Receive_play(int ind) {
 		}
 
 		/* Read the "feature" char/attrs */
-		for (i = 0; i < MAX_F_IDX; i++)
+		for (i = 0; i < MAX_F_IDX_COMPAT; i++)
 		{
 			n = Packet_scanf(&connp->r, "%c%c", &connp->Client_setup.f_attr[i], &connp->Client_setup.f_char[i]);
 
@@ -4105,7 +4105,7 @@ static int Receive_play(int ind) {
 		}
 
 		/* Read the "object" char/attrs */
-		for (i = 0; i < MAX_K_IDX; i++)
+		for (i = 0; i < MAX_K_IDX_COMPAT; i++)
 		{
 			n = Packet_scanf(&connp->r, "%c%c", &connp->Client_setup.k_attr[i], &connp->Client_setup.k_char[i]);
 
@@ -4121,7 +4121,7 @@ static int Receive_play(int ind) {
 		}
 
 		/* Read the "monster" char/attrs */
-		for (i = 0; i < MAX_R_IDX; i++)
+		for (i = 0; i < MAX_R_IDX_COMPAT; i++)
 		{
 			n = Packet_scanf(&connp->r, "%c%c", &connp->Client_setup.r_attr[i], &connp->Client_setup.r_char[i]);