Index: head/share/man/man4/mgb.4
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--- head/share/man/man4/mgb.4	(revision 366114)
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@@ -1,86 +1,85 @@
 .\" Copyright (c) 2019 The FreeBSD Foundation.
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 .\" $FreeBSD$
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 .Dd May 2, 2019
 .Dt MGB 4
 .Os
 .Sh NAME
 .Nm mgb
 .Nd "Microchip LAN743x PCIe Gigabit Ethernet driver"
 .Sh SYNOPSIS
 To load the driver as a module at boot time, place the following line in
 .Xr loader.conf 5 :
 .Bd -literal -offset indent
 if_mgb_load="YES"
 .Ed
 .Sh DESCRIPTION
 The
 .Nm
+driver is experimental, and is not yet connected to the build.
+.Pp
+The
+.Nm
 device driver provides support for PCIe Gigabit Ethernet adapters based on
 Microchip's LAN7430 and LAN7431.
 .Pp
 For more information on configuring this device, see
 .Xr ifconfig 8 .
 .Sh HARDWARE
 The
 .Nm
 driver supports:
 .Pp
 .Bl -bullet -compact
 .It
 Microchip LAN7430 PCIe Gigabit Ethernet controller with PHY
 .It
 Microchip LAN7431 PCIe Gigabit Ethernet controller with RGMII interface
 .El
 .Sh SEE ALSO
 .Xr arp 4 ,
 .Xr miibus 4 ,
 .Xr ifconfig 8
 .Sh CAVEATS
 The driver does not yet implement support for many hardware features,
 including:
 .Bl -bullet -compact
 .It
 Multiple RX queue support
 .It
 RX and TX checksum offload
 .It
 Hardware VLAN tagging or untagging
 .It
 Multicast receive packet filtering
 .It
 Wake on LAN (WoL)
 .It
 LSO
 .It
 RSS
 .El
 .Pp
 LAN7431 support is completely untested.
-.Sh HISTORY
-The
-.Nm
-device driver first appeared in
-.Fx 13.0 .