diff --git a/format.c b/format.c
index fff9a695..80bcc467 100644
--- a/format.c
+++ b/format.c
@@ -18,6 +18,7 @@
 
 #include <sys/types.h>
 #include <sys/param.h>
+#include <sys/wait.h>
 
 #include <ctype.h>
 #include <errno.h>
@@ -582,6 +583,7 @@ format_window_pane(struct format_tree *ft, struct window_pane *wp)
 	unsigned long long	 size;
 	u_int			 i, idx;
 	char			*cmd, *cwd;
+	int			 status;
 
 	if (ft->w == NULL)
 		ft->w = wp->window;
@@ -605,9 +607,13 @@ format_window_pane(struct format_tree *ft, struct window_pane *wp)
 	format_add(ft, "pane_title", "%s", wp->base.title);
 	format_add(ft, "pane_id", "%%%u", wp->id);
 	format_add(ft, "pane_active", "%d", wp == wp->window->active);
-	format_add(ft, "pane_dead", "%d", wp->fd == -1);
 	format_add(ft, "pane_input_off", "%d", !!(wp->flags & PANE_INPUTOFF));
 
+	status = wp->status;
+	if (wp->fd == -1 && WIFEXITED(status))
+		format_add(ft, "pane_dead_status", "%d", WEXITSTATUS(status));
+	format_add(ft, "pane_dead", "%d", wp->fd == -1);
+
 	if (window_pane_visible(wp)) {
 		format_add(ft, "pane_left", "%u", wp->xoff);
 		format_add(ft, "pane_top", "%u", wp->yoff);
diff --git a/server.c b/server.c
index d58c8f38..9b11e019 100644
--- a/server.c
+++ b/server.c
@@ -442,6 +442,7 @@ server_child_exited(pid_t pid, int status)
 			continue;
 		TAILQ_FOREACH(wp, &w->panes, entry) {
 			if (wp->pid == pid) {
+				wp->status = status;
 				server_destroy_pane(wp);
 				break;
 			}
diff --git a/tmux.1 b/tmux.1
index 726f23a1..13460760 100644
--- a/tmux.1
+++ b/tmux.1
@@ -3122,6 +3122,7 @@ The following variables are available, where appropriate:
 .It Li "pane_current_command" Ta "" Ta "Current command if available"
 .It Li "pane_current_path" Ta "" Ta "Current path if available"
 .It Li "pane_dead" Ta "" Ta "1 if pane is dead"
+.It Li "pane_dead_status" Ta "" Ta "Exit status of process in dead pane"
 .It Li "pane_height" Ta "" Ta "Height of pane"
 .It Li "pane_id" Ta "#D" Ta "Unique pane ID"
 .It Li "pane_in_mode" Ta "" Ta "If pane is in a mode"
diff --git a/tmux.h b/tmux.h
index 61f2ca7c..8fbda560 100644
--- a/tmux.h
+++ b/tmux.h
@@ -888,6 +888,7 @@ struct window_pane {
 
 	pid_t		 pid;
 	char		 tty[TTY_NAME_MAX];
+	int		 status;
 
 	u_int		 changes;
 	struct event	 changes_timer;
diff --git a/window-copy.c b/window-copy.c
index f5973322..8aae09be 100644
--- a/window-copy.c
+++ b/window-copy.c
@@ -33,6 +33,7 @@ int	window_copy_key_numeric_prefix(struct window_pane *, int);
 void	window_copy_mouse(struct window_pane *, struct session *,
 	    struct mouse_event *);
 
+void	window_copy_redraw_selection(struct window_pane *, u_int);
 void	window_copy_redraw_lines(struct window_pane *, u_int, u_int);
 void	window_copy_redraw_screen(struct window_pane *);
 void	window_copy_write_line(struct window_pane *, struct screen_write_ctx *,
@@ -874,7 +875,7 @@ window_copy_mouse(struct window_pane *wp, struct session *sess,
 {
 	struct window_copy_mode_data	*data = wp->modedata;
 	struct screen			*s = &data->screen;
-	u_int				 i;
+	u_int				 i, old_cy;
 
 	if (m->x >= screen_size_x(s))
 		return;
@@ -907,9 +908,10 @@ window_copy_mouse(struct window_pane *wp, struct session *sess,
 	 */
 	if (s->mode & MODE_MOUSE_BUTTON) {
 		if (~m->event & MOUSE_EVENT_UP) {
+			old_cy = data->cy;
 			window_copy_update_cursor(wp, m->x, m->y);
 			if (window_copy_update_selection(wp, 1))
-				window_copy_redraw_screen(wp);
+				window_copy_redraw_selection(wp, old_cy);
 			return;
 		}
 		goto reset_mode;
@@ -1245,6 +1247,23 @@ window_copy_write_lines(struct window_pane *wp, struct screen_write_ctx *ctx,
 		window_copy_write_line(wp, ctx, py);
 }
 
+void
+window_copy_redraw_selection(struct window_pane *wp, u_int old_y)
+{
+	struct window_copy_mode_data	*data = wp->modedata;
+	u_int				 new_y, start, end;
+
+	new_y = data->cy;
+	if (old_y <= new_y) {
+		start = old_y;
+		end = new_y;
+	} else {
+		start = new_y;
+		end = old_y;
+	}
+	window_copy_redraw_lines(wp, start, end - start + 1);
+}
+
 void
 window_copy_redraw_lines(struct window_pane *wp, u_int py, u_int ny)
 {
diff --git a/window.c b/window.c
index 4d8cd1c5..54129634 100644
--- a/window.c
+++ b/window.c
@@ -490,6 +490,7 @@ window_zoom(struct window_pane *wp)
 	w->saved_layout_root = w->layout_root;
 	layout_init(w, wp);
 	w->flags |= WINDOW_ZOOMED;
+	notify_window_layout_changed(w);
 
 	return (0);
 }
@@ -511,6 +512,7 @@ window_unzoom(struct window *w)
 		wp->saved_layout_cell = NULL;
 	}
 	layout_fix_panes(w, w->sx, w->sy);
+	notify_window_layout_changed(w);
 
 	return (0);
 }