Index: cddl/contrib/opensolaris/cmd/dtrace/dtrace.1
===================================================================
--- cddl/contrib/opensolaris/cmd/dtrace/dtrace.1
+++ cddl/contrib/opensolaris/cmd/dtrace/dtrace.1
@@ -20,7 +20,7 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd October 30, 2018
+.Dd February 25, 2020
 .Dt DTRACE 1
 .Os
 .Sh NAME
@@ -776,6 +776,11 @@
 .It 2
 Invalid command line options or arguments were specified.
 .El
+.Sh HISTORY
+The
+.Nm 
+utility first appeared in
+.Fx 7.1 .
 .Sh SEE ALSO
 .Xr cpp 1 ,
 .Xr elf 5 ,
Index: cddl/contrib/opensolaris/cmd/lockstat/lockstat.1
===================================================================
--- cddl/contrib/opensolaris/cmd/lockstat/lockstat.1
+++ cddl/contrib/opensolaris/cmd/lockstat/lockstat.1
@@ -21,7 +21,7 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd September 29, 2015
+.Dd February 25, 2020
 .Dt LOCKSTAT 1
 .Os
 .Sh NAME
@@ -366,6 +366,11 @@
 .Xr dtrace 1 ,
 .Xr ksyms 4 ,
 .Xr locking 9
+.Sh HISTORY
+The
+.Nm
+utility first appeared in
+.Fx 7.1 .
 .Sh NOTES
 Tail-call elimination can affect call sites.
 For example, if
Index: cddl/contrib/opensolaris/cmd/zdb/zdb.8
===================================================================
--- cddl/contrib/opensolaris/cmd/zdb/zdb.8
+++ cddl/contrib/opensolaris/cmd/zdb/zdb.8
@@ -13,7 +13,7 @@
 .\" Copyright (c) 2012, 2018 by Delphix. All rights reserved.
 .\" Copyright 2017 Nexenta Systems, Inc.
 .\"
-.Dd October 06, 2017
+.Dd February 25, 2020
 .Dt ZDB 8
 .Os
 .Sh NAME
@@ -407,3 +407,8 @@
 .Sh SEE ALSO
 .Xr zfs 8 ,
 .Xr zpool 8
+.Sh HISTORY
+The
+.Nm
+utility first appeared in
+.Fx 7.0 .
Index: cddl/contrib/opensolaris/cmd/zfs/zfs.8
===================================================================
--- cddl/contrib/opensolaris/cmd/zfs/zfs.8
+++ cddl/contrib/opensolaris/cmd/zfs/zfs.8
@@ -32,7 +32,7 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd October 16, 2019
+.Dd February 25, 2020
 .Dt ZFS 8
 .Os
 .Sh NAME
@@ -3946,6 +3946,11 @@
 .Xr umount 8 ,
 .Xr zfs-program 8 ,
 .Xr zpool 8
+.Sh HISTORY
+The
+.Nm
+utility first appeared in
+.Fx 7.0 .
 .Sh AUTHORS
 This manual page is a
 .Xr mdoc 7
Index: cddl/contrib/opensolaris/cmd/zpool/zpool.8
===================================================================
--- cddl/contrib/opensolaris/cmd/zpool/zpool.8
+++ cddl/contrib/opensolaris/cmd/zpool/zpool.8
@@ -29,7 +29,7 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd November 7, 2019
+.Dd February 25, 2020
 .Dt ZPOOL 8
 .Os
 .Sh NAME
@@ -2462,6 +2462,11 @@
 .Xr zpool-features 7 ,
 .Xr zfs 8 ,
 .Xr zfsd 8
+.Sh HISTORY
+The
+.Nm
+utility first appeared in
+.Fx 7.0 .
 .Sh AUTHORS
 This manual page is a
 .Xr mdoc 7
Index: cddl/contrib/opensolaris/cmd/zstreamdump/zstreamdump.1
===================================================================
--- cddl/contrib/opensolaris/cmd/zstreamdump/zstreamdump.1
+++ cddl/contrib/opensolaris/cmd/zstreamdump/zstreamdump.1
@@ -22,7 +22,7 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd December 31, 2013
+.Dd February 25, 2020
 .Dt ZSTREAMDUMP 8
 .Os
 .Sh NAME
@@ -52,6 +52,11 @@
 .El
 .Sh SEE ALSO
 .Xr zfs 8
+.Sh HISTORY
+The
+.Nm
+utility first appeared in
+.Fx 7.0 .
 .Sh AUTHORS
 This manual page is a
 .Xr mdoc 7