===================================================================
RCS file: /cvsrepo/anoncvs/cvs/src/usr.bin/tmux/tmux.1,v
retrieving revision 1.827
retrieving revision 1.828
diff -u -r1.827 -r1.828
--- src/usr.bin/tmux/tmux.1	2021/03/02 10:56:45	1.827
+++ src/usr.bin/tmux/tmux.1	2021/03/11 06:31:05	1.828
@@ -1,4 +1,4 @@
-.\" $OpenBSD: tmux.1,v 1.827 2021/03/02 10:56:45 nicm Exp $
+.\" $OpenBSD: tmux.1,v 1.828 2021/03/11 06:31:05 nicm Exp $
 .\"
 .\" Copyright (c) 2007 Nicholas Marriott <nicholas.marriott@gmail.com>
 .\"
@@ -14,7 +14,7 @@
 .\" IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
 .\" OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 .\"
-.Dd $Mdocdate: March 2 2021 $
+.Dd $Mdocdate: March 11 2021 $
 .Dt TMUX 1
 .Os
 .Sh NAME
@@ -2804,7 +2804,7 @@
 the command behaves like
 .Ic last-window .
 .It Xo Ic split-window
-.Op Fl bdfhIvP
+.Op Fl bdfhIvPZ
 .Op Fl c Ar start-directory
 .Op Fl e Ar environment
 .Op Fl l Ar size
@@ -2840,6 +2840,8 @@
 or full window width (with
 .Fl v ) ,
 instead of splitting the active pane.
+.Fl Z
+zooms if the window is not zoomed, or keeps it zoomed if already zoomed.
 .Pp
 An empty
 .Ar shell-command