3.4.0

[3.4.0] - 2026-08-30

Added

• Key cheat sheet (Prefix + ?, tmux's list-keys): a scrollable
  popup listing every effective binding — after config.toml overrides
  and unbinds — grouped into Windows / Panes / Layouts / Scrollback &
  selection / Tools / Other, each with the command name and a one-line
  description. The legacy [keybindings] keys (history selector,
  scrollback, selection) are listed in their own section. j/k,
  PgUp/PgDn, g/G scroll; q, Esc or ? close. Also
  list-keys (lsk) at the command prompt and as a bindable command.
• tmux's layout keys: Prefix + M-1 … M-5 now apply
  even-horizontal, even-vertical, main-horizontal, main-vertical
  and tiled directly (previously only reachable by cycling with
  Space or via select-layout).
• previous-layout (prevl) cycles the presets backwards; also
  available as select-layout -p (and -n for next), as a prompt
  command and as a bindable command. No default key.
• move-window / swap-window (tmux window reordering). Prefix + .
  then a digit 1-9 moves the current window to that position; the
  status bar shows the prompt and any other key cancels. Both are also
  prompt commands (move-window -t <n> / movew, swap-window -t <n>
  / swapw) and bindable commands (move-window [-t <n>],
  swap-window [-t <n>]; without -t the key waits for a digit).

Changed

• Window names no longer embed a number: new windows are named main /
  shell and the tab bar prefixes the current display position
  (1:main, 2:shell), so the number stays correct after windows are
  moved, swapped, or closed. rename-window names show the same way
  (3:build).
• Automatic pane titles: panes are now titled after their working
  directory's last component (e.g. wtmux for
  D:\home\source\rust\wtmux) and follow cd as it happens. Panes in
  the same window that end up with the same name are numbered
  wtmux, wtmux:2, wtmux:3, … in pane order.
• Manual pane renaming was removed: the rename-pane prompt command
  and key binding (Prefix + .), the context menu's "Rename Pane"
  item, and right-click-on-title renaming are gone. Window renaming is
  unchanged.
• cwd_prompt_hook now defaults to on so pane titles can track the
  working directory out of the box. Set cwd_prompt_hook = false in
  config.toml (or pass --no-cwd-prompt-hook) to opt out; titles
  then stay at each pane's starting directory.