Index: sbin/sconfig/sconfig.8
===================================================================
--- sbin/sconfig/sconfig.8
+++ sbin/sconfig/sconfig.8
@@ -11,7 +11,7 @@
 .\" works or modified versions.
 .\"
 .\" $FreeBSD$
-.Dd October 3, 2016
+.Dd March 25, 2020
 .Dt SCONFIG 8 i386
 .Os
 .Sh NAME
@@ -24,6 +24,12 @@
 .Op Ar data_rate_options
 .Op Ar protocol_options ...
 .Op Ar interface_options ...
+.Sh DEPRECATION NOTICE
+The
+.Nm
+utility is not present in
+.Fx 13.0
+and later.
 .Sh DESCRIPTION
 The
 .Nm
Index: share/man/man4/man4.i386/ce.4
===================================================================
--- share/man/man4/man4.i386/ce.4
+++ share/man/man4/man4.i386/ce.4
@@ -24,7 +24,7 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd January 30, 2006
+.Dd March 2, 2020
 .Dt CE 4 i386
 .Os
 .Sh NAME
@@ -49,6 +49,12 @@
 .Cd "device sppp"
 .Cd "options NETGRAPH"
 .Cd "options NETGRAPH_CRONYX"
+.Sh DEPRECATION NOTICE
+The
+.Nm
+driver is not present in
+.Fx 13.0
+and later.
 .Sh DESCRIPTION
 The
 .Nm
Index: share/man/man4/man4.i386/cp.4
===================================================================
--- share/man/man4/man4.i386/cp.4
+++ share/man/man4/man4.i386/cp.4
@@ -13,7 +13,7 @@
 .\" Cronyx Id: cp.4,v 1.1.2.5 2004/06/21 17:47:40 rik Exp $
 .\" $FreeBSD$
 .\"
-.Dd July 16, 2005
+.Dd March 2, 2020
 .Dt CP 4 i386
 .Os
 .Sh NAME
@@ -38,6 +38,12 @@
 .Cd "device sppp"
 .Cd "options NETGRAPH"
 .Cd "options NETGRAPH_CRONYX"
+.Sh DEPRECATION NOTICE
+The
+.Nm
+driver is not present in
+.Fx 13.0
+and later.
 .Sh DESCRIPTION
 The
 .Nm
Index: share/man/man4/mn.4
===================================================================
--- share/man/man4/mn.4
+++ share/man/man4/mn.4
@@ -33,6 +33,12 @@
 .Sh SYNOPSIS
 .Cd "device mn"
 .Cd "options NETGRAPH"
+.Sh DEPRECATION NOTICE
+The
+.Nm
+driver is not present in
+.Fx 13.0
+and later.
 .Sh HARDWARE
 The
 .Nm
Index: sys/dev/ce/if_ce.c
===================================================================
--- sys/dev/ce/if_ce.c
+++ sys/dev/ce/if_ce.c
@@ -743,6 +743,7 @@
 	CE_UNLOCK (bd);
 	splx (s);
 
+	gone_in_dev(dev, 13, "sync serial (T1/E1) drivers");
 	return 0;
 }
 
Index: sys/dev/cp/if_cp.c
===================================================================
--- sys/dev/cp/if_cp.c
+++ sys/dev/cp/if_cp.c
@@ -530,6 +530,7 @@
 	adapter[unit] = b;
 	CP_UNLOCK (bd);
 	splx (s);
+	gone_in_dev(dev, 13, "sync serial (T1/E1) drivers");
 	return 0;
 }
 
Index: sys/dev/mn/if_mn.c
===================================================================
--- sys/dev/mn/if_mn.c
+++ sys/dev/mn/if_mn.c
@@ -1395,6 +1395,7 @@
 	default:
 		printf(" Rev 0x%x\n", sc->f54r->vstr);
 	}
+	gone_in_dev(dev, 13, "sync serial (T1/E1) drivers");
 
 	if (ng_make_node_common(&mntypestruct, &sc->node) != 0) {
 		printf("ng_make_node_common failed\n");