A fourth edition Unix tape was recently found at the University of Utah.
Update manual history based on the contents.

https://archive.org/details/utah_unix_v4_raw
http://squoze.net/UNIX/v4/

	dd
bin/dd
usr/source/s1/dd.c

	diff
usr/bin/diff
usr/source/s1/diff1.c
usr/source/s1/diff2.s

	find
usr/bin/find
usr/source/s1/find.c

	lpr
bin/lpr
usr/source/s1/lpr.c

	lpd
etc/lpd
usr/source/s1/lpd.s

	pwd
usr/bin/pwd
usr/source/s2/pwd.c

	profil
usr/sys/ken/sys4.c:profil()

	abort
usr/source/s4/abort.s

	localtime
usr/source/s3/ctime.c:localtime(tim)

	floor
usr/source/s4/floor.s

	fmod
usr/source/s4/fmod.s

	gamma
usr/source/s3/gamma.s

	ttys
etc/ttys

	ac
usr/bin/ac
usr/source/s1/ac.c

	sa
usr/bin/sa
usr/source/s2/sa.c

	mount
usr/source/s4/mount.s
/ error = mount(dev, file, flag)

diff --git bin/dd/dd.1 bin/dd/dd.1
index 8a9049da383..3a6e289a449 100644
--- bin/dd/dd.1
+++ bin/dd/dd.1
@@ -379,4 +379,4 @@ specification.
 A
 .Nm
 utility appeared in
-.At v5 .
+.At v4 .
diff --git bin/pwd/pwd.1 bin/pwd/pwd.1
index 17c200cf912..790b056b6f9 100644
--- bin/pwd/pwd.1
+++ bin/pwd/pwd.1
@@ -103,7 +103,7 @@ had been specified.
 An
 .Nm
 utility appeared in
-.At v5 .
+.At v4 .
 Support for the
 .Fl L
 option was added in
diff --git lib/libc/stdlib/abort.3 lib/libc/stdlib/abort.3
index 2f15cd827c8..810fe070e57 100644
--- lib/libc/stdlib/abort.3
+++ lib/libc/stdlib/abort.3
@@ -66,7 +66,7 @@ function conforms to
 The
 .Fn abort
 function first appeared in
-.At v5 .
+.At v4 .
 .Pp
 Historically, previous standards required
 .Fn abort
diff --git lib/libc/sys/mount.2 lib/libc/sys/mount.2
index 851e73ff836..c2428ffaff0 100644
--- lib/libc/sys/mount.2
+++ lib/libc/sys/mount.2
@@ -418,7 +418,7 @@ The
 argument is supported by
 .Fn mount
 since
-.At v5
+.At v4
 and by
 .Fn unmount
 since
diff --git lib/libc/sys/profil.2 lib/libc/sys/profil.2
index 0976efa7e85..7e40418c035 100644
--- lib/libc/sys/profil.2
+++ lib/libc/sys/profil.2
@@ -159,7 +159,7 @@ value is too large.
 The
 .Fn profil
 system call first appeared in
-.At v5 .
+.At v4 .
 .Pp
 Historically, profile information was written to the file by the C-run-time
 exit processing code using
diff --git lib/libc/time/ctime.3 lib/libc/time/ctime.3
index 44a3a01a22b..7bc205c0e0e 100644
--- lib/libc/time/ctime.3
+++ lib/libc/time/ctime.3
@@ -343,7 +343,7 @@ The functions
 and
 .Fn localtime
 first appeared in
-.At v5 ,
+.At v4 ,
 .Fn difftime
 and
 .Fn mktime
diff --git lib/libm/man/floor.3 lib/libm/man/floor.3
index e6e50fa71a1..1fa076c5628 100644
--- lib/libm/man/floor.3
+++ lib/libm/man/floor.3
@@ -74,4 +74,4 @@ function conforms to
 A
 .Fn floor
 function first appeared in
-.At v5 .
+.At v4 .
diff --git lib/libm/man/fmod.3 lib/libm/man/fmod.3
index 78390d08cfe..dbe4368f78a 100644
--- lib/libm/man/fmod.3
+++ lib/libm/man/fmod.3
@@ -92,4 +92,4 @@ function conforms to
 An
 .Fn fmod
 function first appeared in
-.At v5 .
+.At v4 .
diff --git lib/libm/man/lgamma.3 lib/libm/man/lgamma.3
index 08dc93ff9ee..5672f7b3fd3 100644
--- lib/libm/man/lgamma.3
+++ lib/libm/man/lgamma.3
@@ -178,7 +178,7 @@ respectively.
 A
 .Fn gamma
 function first appeared in
-.At v5 .
+.At v4 .
 The
 .Fn lgamma
 function first appeared in
diff --git libexec/getty/ttys.5 libexec/getty/ttys.5
index 1f8647a736d..7f1ad79d07a 100644
--- libexec/getty/ttys.5
+++ libexec/getty/ttys.5
@@ -185,4 +185,4 @@ ttyp1	none	network	off
 A
 .Nm
 file appeared in
-.At v5 .
+.At v4 .
diff --git usr.bin/diff/diff.1 usr.bin/diff/diff.1
index c0e2d76ee34..b1567d809cd 100644
--- usr.bin/diff/diff.1
+++ usr.bin/diff/diff.1
@@ -472,4 +472,4 @@ are extensions to that specification.
 A
 .Nm
 command appeared in
-.At v5 .
+.At v4 .
diff --git usr.bin/find/find.1 usr.bin/find/find.1
index 6d0f86cbca3..fa9461a510f 100644
--- usr.bin/find/find.1
+++ usr.bin/find/find.1
@@ -675,7 +675,7 @@ A new
 .Nm
 command was written for the Programmer's Workbench (PWB)
 and appeared in
-.At v5 .
+.At v4 .
 It was rewritten for
 .Bx 4.3 Reno .
 .Sh CAVEATS
diff --git usr.sbin/ac/ac.8 usr.sbin/ac/ac.8
index be3df8b93a3..a776935c110 100644
--- usr.sbin/ac/ac.8
+++ usr.sbin/ac/ac.8
@@ -144,7 +144,7 @@ $ ac -p -t "!ttyd*" \*(Gt other
 An
 .Nm
 command appeared in
-.At v5 .
+.At v4 .
 This version of
 .Nm
 was written for
diff --git usr.sbin/lpr/lpd/lpd.8 usr.sbin/lpr/lpd/lpd.8
index 4289d48c695..7450cb72efb 100644
--- usr.sbin/lpr/lpd/lpd.8
+++ usr.sbin/lpr/lpd/lpd.8
@@ -353,7 +353,7 @@ lists machine names allowed printer access
 An
 .Nm
 daemon appeared in
-.At v5 .
+.At v4 .
 .Pp
 .Nm
 previously required that clients connected using a privileged port
diff --git usr.sbin/lpr/lpr/lpr.1 usr.sbin/lpr/lpr/lpr.1
index 69f7cb5a764..f4724c10258 100644
--- usr.sbin/lpr/lpr/lpr.1
+++ usr.sbin/lpr/lpr/lpr.1
@@ -253,7 +253,7 @@ regarding missing spool files by
 The
 .Nm
 command appeared in
-.At v5 .
+.At v4 .
 .Sh BUGS
 Fonts for troff and tex reside on the host with the printer.
 It is currently not possible to use local font libraries.
diff --git usr.sbin/sa/sa.8 usr.sbin/sa/sa.8
index edc38ecc655..e08cc7a7fe4 100644
--- usr.sbin/sa/sa.8
+++ usr.sbin/sa/sa.8
@@ -214,7 +214,7 @@ per-user accounting summary database
 .Sh HISTORY
 .Nm
 first appeared in
-.At v5 .
+.At v4 .
 .Nm
 was rewritten for
 .Nx 0.9a