Split-window panes are now on by default — split any tab side-by-side with Ctrl+Shift+D or stacked with Ctrl+Shift+E, focus panes with Ctrl+Alt+Arrow, resize with Ctrl+Alt+Shift+Arrow, and close with Ctrl+Alt+W
Zoom a pane to fill the tab with Ctrl+Shift+Z, then restore it just as fast — great for focusing on one session without losing your layout
Broadcast input across panes — Ctrl+Alt+B fans your keystrokes out to every visible pane in a tab (tmux synchronize-panes style), with a first-time warning so you don’t fire a destructive command everywhere by accident
Drag a tab onto a pane to split or swap — drop on an edge to split in that direction, drop in the center to swap which session lives there; move sessions across tabs or pop one out into its own tab
Layout presets — jump straight to single, vertical split, horizontal split, three-pane, or four-pane grid layouts
Smarter SSH host-key handling — a Known Hosts manager with one-click re-trust when a key changes, strict verification with no silent auto-trust
Sharper terminal rendering — fixed CJK/multibyte garbling under multi-pane load, eliminated session-switch flicker on long-scroll terminals, and stopped scrollback from being truncated when switching panes
Dozens of multi-pane polish fixes — cleaner active-pane outlines, better resize handles, preserved scrollback in narrow panes, and reliable pane close without leaking sessions