cmuxcmux
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Changelog

#cmux 0.63.0: SSH, Claude Code Teams, oh-my-openagent, Browser Import, Minimal Mode

SSH. cmux ssh user@remote creates a workspace for a remote machine. Browser panes route through the remote network so localhost just works. Drag an image into a remote session to upload via scp. Coding agent notifications come home to your local sidebar. Reconnects on drops.

Claude Code Teams. cmux claude-teams launches Claude Code's experimental teammate mode with one command. It sets up the environment, fakes a tmux session, and translates tmux commands into native cmux splits. Teammates stack vertically in a right column with sidebar metadata and notifications.

oh-my-openagent. cmux omo integrates oh-my-openagent (formerly oh-my-opencode), which orchestrates specialist agents across Claude, GPT, and Gemini in parallel. Same tmux shim as claude-teams, auto-installs the plugin, notifications route through cmux.

Browser Profile Import. Import cookies, history, and sessions from Chrome, Arc, Brave, Firefox, Safari, and 20+ browsers. The import wizard detects installed browsers, lets you pick profiles, and injects everything into cmux's browser panes so you're already logged in.

Minimal Mode. Hide the titlebar for a distraction-free terminal. Controls move to the sidebar and appear on hover. Toggle from the command palette or Settings.

Custom Commands. Define project-specific actions in cmux.json that launch from the command palette. One file per repo, no global config needed.

Added
  • Browser profile import — cookies, history, and settings from Chrome, Firefox, Safari, and more (#318, #1582, #1593)
  • Support window.open() popup windows in browser panes with shared OAuth context (#1150, #1600)
  • Minimal mode — hide the titlebar for a distraction-free terminal (#1479, #2218)
  • cmux.json custom commands — define project-specific actions launched from the command palette (#2011, #2122)
  • cmux omo command for oh-my-openagent integration (#2087, #2230, #2280)
  • Codex CLI hooks integration for terminal notifications (#2103)
  • Customizable number shortcuts for workspace switching (#1951)
  • Customizable sidebar selection highlight color (#1824)
  • Match Terminal Background sidebar color setting (#2293)
  • Optional single-click focus for inactive split panes (#1796)
  • Support image drag-and-drop into SSH terminals (#1838)
  • Support dropping folders onto the dock icon to open as workspaces (#1571)
  • Support modifier+key combinations in send-key CLI — ctrl+enter, shift+tab, arrow keys, home/end/delete/pageup/pagedown (#1994, #1920)
  • --name flag for new-workspace CLI command (#2160)
  • --no-focus flag for cmux ssh (#2227)
  • --direction flag for markdown open command (#1763)
  • Per-surface TTY exposed in cmux tree output (#2040)
  • set-color / clear-color workspace actions for tab color via CLI (#1873, #1833)
  • IntelliJ IDEA added to command palette Open Directory targets (#1860)
  • Open a new terminal tab from empty tab bar double-click (#1601)
  • Double-click custom titlebar to zoom or minimize (#2130)
  • Confirm before closing pinned workspaces (#1895)
  • Show tab name in close tab confirmation dialog (#1845)
  • Sidebar listening ports are now clickable to open in browser (#1844)
  • Ukrainian (uk) localization (#2226)
  • Hidden CLI command for live terminal debugging (#1599)
  • rc and remote-control added to command passthrough (#1539)
  • Export CMUX_SOCKET alongside CMUX_SOCKET_PATH in terminal env (#1991)
  • Dual licensing — AGPL + commercial (#2021)
  • Universal binary (arm64 + x86_64) for stable releases (#2287)
  • Add claude-teams, omo, and __tmux-compat to Go relay CLI for SSH sessions (#2238)
  • Warn Before Quit enforced when Cmd+Q arrives via app switcher (#2186)
Changed
  • Show update-available banner automatically on launch (#1651, #1543, #1575)
  • Restore Sparkle scheduled update checks (#1597)
  • New window inherits size from current window (#2124)
  • Restore last-surface close preference toggle (#1679)
  • Rename "Import From Browser" to "Import Browser Data" (#1672)
  • Make founders email selectable in feedback success view (#1733)
  • Include hardware details in feedback submissions (#1726)
  • Coalesce scrollbar updates during bulk output for improved performance (#2116)
  • Reduce shell integration prompt latency (#2109)
  • Skip quit confirmation for tagged DEV builds (#2288)
  • Use dedicated setting for sidebar port link browser preference (#2219)
  • Skip sidebar PR lookup on main/master branches (#2110)
  • Stabilize sidebar directory ordering when split focus changes (#1798)
  • Improve tmux notification attention routing (#1898)
Fixed
  • Fix Cmd+N workspace creation crashes caused by stale snapshots, ARC hotpaths, and restore-time races (#2204, #2183, #2181, #2178, #2176, #2173, #2133, #2023, #1985, #1930)
  • Fix ARC workspace inheritance crash and native Zig helper builds (#2283)
  • Fix EXC_BAD_ACCESS caused by over-releasing Ghostty font (#1496)
  • Fix terminal black screen on macOS 26.3.1 by dispatching Ghostty callbacks to main thread (#1937)
  • Fix blank terminal renders after workspace switches (#1964)
  • Fix stale terminal portal after restore churn (#2025)
  • Fix floating portal terminal after nightly update relaunch (#1696)
  • Fix terminal portal resync after restore-time bind (#1973)
  • Fix terminal find overlay crash and focus handoff (#1487)
  • Fix split transparency regression (#1568)
  • Apply background-opacity and background-blur to terminal rendering area (#1858)
  • Fix keyboard shortcuts not working with CJK input sources (Korean, Japanese, Russian) (#1649, #1913, #2202)
  • Skip CJK fallback font injection when font-family already covers glyphs (#2241)
  • Skip Korean from CJK font-codepoint-map auto-injection (#1700)
  • Fix Japanese IME confirmation Enter from executing command prematurely (#2075, #1671)
  • Fix Korean IME Enter handling on composition path in browser panes (#2108)
  • Fix AZERTY Option+Delete word delete in Claude Code (#1640)
  • Fix Escape key not working in terminal panels (e.g., lazygit) (#1957)
  • Fix unbound Cmd+Shift+key combos being silently swallowed (#1959)
  • Fix Cmd+W closing terminal tabs instead of About/Licenses windows (#1473)
  • Fix Cmd+O opening Documents folder — handle in custom shortcut handler (#2034)
  • Consume Cmd+number shortcuts when workspace index is out of bounds (#2033)
  • Fix arrow key glyph matching in customizable shortcuts (#1443)
  • Fix cursor movement on double-click selection (#1709)
  • Fix doomscroll when reviewing scrollback (#1616)
  • Fix browser panes rendering blank after reopen (#2141)
  • Fix browser portal leaking to other tabs on Bonsplit tab switch (#2000)
  • Fix browser freeze after pane split (#1852)
  • Fix browser pane video fullscreen (#1921)
  • Fix browser image copy pasteboard data (#1850)
  • Fix browser pane file drops hanging on "Uploading" (#1843)
  • Fix browser back navigation history handoff (#1897)
  • Fix browser devtools X-close persistence (#1627)
  • Fix browser PR metadata deadlock and BrowserPanelView hot paths (#1564)
  • Fix Cloudflare/CAPTCHA verification failures in browser panel (#1877)
  • Fix Google sign-in infinite loading in browser pane (#1493)
  • Fix native value setter for React compatibility in browser panes (#2059)
  • Fix sidebar badges not refreshing on workspace state change (#2046)
  • Fix sidebar PR badge detection for workspace branches and restored workspaces (#1896, #1570, #1636)
  • Fix sidebar notification persisting after being read (#1933)
  • Fix premature workspace title truncation in sidebar (#1859)
  • Fix pinned workspace ordering — keep pinned workspaces above pin boundary (#1503, #1505)
  • Fix command palette ordering for "check" query (#1740)
  • Fix command palette focus after terminal find (#2089)
  • Fix missing command palette open-in targets (#1621)
  • Fix all split panes appearing focused after layout restoration (#2088)
  • Fix panel resize stuttering when tiled with browser panels (#1969)
  • Fix splitter hitbox overlap and terminal scrollbar width resync (#1950)
  • Increase content side hit width to prevent accidental window resize (#2018)
  • Fix window position restore on relaunch (#2129)
  • Fix dock icon not auto-switching with system dark mode (#1928, #1510)
  • Align titlebar icons with traffic-light buttons (#1754)
  • Fix focused notification sound playback (#1855)
  • Fix laggy terminal sync during sidebar drags (#1598)
  • Fix spinner hang after display resolution changes (#1549)
  • Fix workspace layout follow-up spin loop (#1633)
  • Fix Ghostty resize_split keybind support (#1899)
  • Fix update attempt refreshing pill without actually updating (#2168, #2142, #2117)
  • Fix SSH control master cleanup on remote teardown (#2104)
  • Fix SSH cleanup after moving the last remote surface (#2123)
  • Fix SSH image transfer cleanup and IPv6 followups (#1907, #1904)
  • Fix SSH remote CLI wrapper and proxy follow-ups (#1596)
  • Fix nightly SSH remote daemon checksum mismatch (#2225)
  • Fix cmux ssh notify surface targeting (#1799)
  • Fix tmux compat store decoding, layout cleanup, and cross-workspace fallback (#2207)
  • Fix claude-teams pane anchoring with main-vertical layout (#2119)
  • Fix claude-hook stop teardown races (#1954)
  • Fix Claude Code hooks config to match actual schema (#1388)
  • Handle TabManager unavailable in SessionEnd/Start hooks (#1735)
  • Fix blocking sleep in preexec hook causing command lag (#1444)
  • Fix redundant focus events causing Powerlevel10k redraws (#1579)
  • Fix identical session autosave writes (#1732)
  • Fix locale page crashes under Google Translate (#1956)
  • Fix About Panel newline escaping (#1298)
  • Fix remote sidebar directory canonicalization to preserve live paths (#1800)
  • Fix AppleScript count windows returning 0 and working directory returning empty (#1826)
  • Fix PWD action routing to correct TabManager per tabId (#2147)
  • Fix socket returning wrong error when surface_id is provided but unresolvable (#2150)
  • Guard inherited terminal config against stale surfaces (#2101)
  • Suppress socat stdout in _cmux_send to prevent "OK" leak (#1619)
  • Add -r shorthand to skip session ID check in Claude wrapper (#1992)
  • Check git repo before running git commands to prevent TCC permission prompts (#1677)
  • Preserve explicit wheel scrollback against passive follow (#1965)
  • Fix terminal pane drag/drop handoff delay (#1837)
Removed
  • Remove restricted web-browser entitlement (#1727)