gistfile1.txt

Index: cmd-split-window.c
===================================================================
RCS file: /cvs/src/usr.bin/tmux/cmd-split-window.c,v
diff -u -p -r1.119 cmd-split-window.c
--- cmd-split-window.c	20 May 2026 08:54:40 -0000	1.119
+++ cmd-split-window.c	28 May 2026 12:36:02 -0000
@@ -148,7 +148,7 @@ cmd_split_window_exec(struct cmd *self, 
 	u_int			 count = args_count(args);
 
 	if (cmd_get_entry(self) == &cmd_new_pane_entry)
-		is_floating = 0; /* !args_has(args, 'L'); */
+		is_floating = !args_has(args, 'L');
 	else
 		is_floating = 0;
 	input = (args_has(args, 'I') && count == 0);
Index: key-bindings.c
===================================================================
RCS file: /cvs/src/usr.bin/tmux/key-bindings.c,v
diff -u -p -r1.170 key-bindings.c
--- key-bindings.c	28 May 2026 10:34:38 -0000	1.170
+++ key-bindings.c	28 May 2026 12:36:02 -0000
@@ -362,6 +362,7 @@ key_bindings_init(void)
 		"bind -N 'Split window horizontally' % { split-window -h }",
 		"bind -N 'Kill current window' & { confirm-before -p\"kill-window #W? (y/n)\" kill-window }",
 		"bind -N 'Prompt for window index to select' \"'\" { command-prompt -T window-target -pindex { select-window -t ':%%' } }",
+		"bind -N 'New floating pane' * { new-pane }",
 		"bind -N 'Switch to previous client' ( { switch-client -p }",
 		"bind -N 'Switch to next client' ) { switch-client -n }",
 		"bind -N 'Rename current window' , { command-prompt -I'#W' { rename-window -- '%%' } }",
Index: options-table.c
===================================================================
RCS file: /cvs/src/usr.bin/tmux/options-table.c,v
diff -u -p -r1.212 options-table.c
--- options-table.c	27 May 2026 18:57:10 -0000	1.212
+++ options-table.c	28 May 2026 12:36:02 -0000
@@ -349,6 +349,13 @@ const struct options_table_entry options
 	  .text = "Default command to run when tmux is run without a command."
 	},
 
+	{ .name = "default-session-name",
+	  .type = OPTIONS_TABLE_STRING,
+	  .scope = OPTIONS_TABLE_SERVER,
+	  .default_str = "#{?session_group,#{session_group}-,}#{s|^\\$||:#{next_session_id}}",
+	  .text = "The default session name for a session if none is provided."
+	},
+
 	{ .name = "default-terminal",
 	  .type = OPTIONS_TABLE_STRING,
 	  .scope = OPTIONS_TABLE_SERVER,
Index: session.c
===================================================================
RCS file: /cvs/src/usr.bin/tmux/session.c,v
diff -u -p -r1.103 session.c
--- session.c	22 Apr 2026 07:10:16 -0000	1.103
+++ session.c	28 May 2026 12:36:02 -0000
@@ -113,7 +113,11 @@ struct session *
 session_create(const char *prefix, const char *name, const char *cwd,
     struct environ *env, struct options *oo, struct termios *tio)
 {
-	struct session	*s;
+	struct session		*s;
+	struct options		*so = global_options;
+	struct format_tree	*ft;
+	const char		*fmt;
+	char			*newname;
 
 	s = xcalloc(1, sizeof *s);
 	s->references = 1;
@@ -139,14 +143,25 @@ session_create(const char *prefix, const
 		s->name = xstrdup(name);
 		s->id = next_session_id++;
 	} else {
-		do {
+		ft = format_create (NULL, NULL, 0, 0);
+		if (prefix != NULL)
+			format_add(ft, "session_group", "%s", prefix);
+		fmt = options_get_string(so, "default-session-name");
+		newname = format_expand(ft, fmt);
+		format_free(ft);
+
+		s->name = clean_name(newname, "#:.");
+		free(newname);
+		if (s->name == NULL || RB_FIND(sessions, &sessions, s) != NULL) {
+		    do {
 			s->id = next_session_id++;
 			free(s->name);
 			if (prefix != NULL)
 				xasprintf(&s->name, "%s-%u", prefix, s->id);
 			else
 				xasprintf(&s->name, "%u", s->id);
-		} while (RB_FIND(sessions, &sessions, s) != NULL);
+		    } while (RB_FIND(sessions, &sessions, s) != NULL);
+		}
 	}
 	RB_INSERT(sessions, &sessions, s);
 
Index: tmux.1
===================================================================
RCS file: /cvs/src/usr.bin/tmux/tmux.1,v
diff -u -p -r1.1058 tmux.1
--- tmux.1	27 May 2026 18:57:10 -0000	1.1058
+++ tmux.1	28 May 2026 12:36:03 -0000
@@ -296,6 +296,8 @@ Prompt for a window index to select.
 Switch the attached client to the previous session.
 .It \&)
 Switch the attached client to the next session.
+.It *
+Create a new floating pane.
 .It ,
 Rename the current window.
 .It \-