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Changelog

All notable changes to cmux are documented here.

[0.63.2] - 2026-04-06

Added

  • Support chorded keyboard shortcuts (#2528)
  • Detect listening ports for remote SSH workspaces (#2398)
  • Editable workspace descriptions (#2475)
  • Claude Binary Path setting (#2514)
  • cmux omx and cmux omc agent integrations (#2619)
  • "Open Folder in VS Code (Inline)" menu item and command palette entry (#2409)
  • New Window entry in the Dock menu (#2340)
  • Reset-terminal workaround in the terminal menu (#2349)
  • React Grab inject button in the browser toolbar (#2373)
  • Hover background on split action buttons (#2271)
  • Cmd-click fallback for bare filenames in ls output (#2294)
  • Localized tab context menu and alert strings (#2422)

Changed

  • Relicense cmux from AGPL-3.0 to GPL-3.0 (#2364)
  • Update bundled Ghostty fork to latest upstream (#2379)
  • Sidebar PR lookups are now event-driven to reduce GitHub API load (#2453)
  • Keep the latest sidebar notification until it is explicitly cleared (#2623)
  • Switch the nightly Sparkle appcast feed to R2 (#2335, #2363, #2366)

Fixed

  • Fix terminals freezing when the first responder drifts off the focused surface (#2505)
  • Fix sidebar layout loop and CLI socket deadlocks (#2601)
  • Fix sidebar LazyVStack layout loop in the workspace list (#2328)
  • Fix focus reporting leak on pane creation (#2511)
  • Fix browser pane flicker during multi-split resize (#2574)
  • Fix browser panel resize flicker during split drag (#2513)
  • Fix browser pane hangs from redundant portal refreshes (#2353)
  • Fix browser pane dark-mode leak on light pages (#2346)
  • Fix DevTools pane breaking after workspace switch round-trips (#2621)
  • Fix sidebar background: add missing locale entries and portal resync on toggle (#2622)
  • Fix session restore suppression on relaunch (#2469)
  • Fix session restore terminal cursor focus race (#2471)
  • Fix terminal focus and surface recovery after layout changes (#2354)
  • Fix missing sidebar ports for agent-run dev servers (#2562)
  • Fix missing sidebar git branch metadata for workspaces (#2563)
  • Fix sidebar live refresh for branch and PR state (#2331)
  • Fix duplicate sidebar git metadata publishes (#2405)
  • Fix SSH password-auth bootstrap race (#2564)
  • Fix remote proxy notification spam with cooldown, backoff, and SSH keepalive (#2330)
  • Fix tmux-compat split-window surface resolution (#2351)
  • Fix new-split falling back to the focused surface when the target is stale (#2518) — thanks @anusheel!
  • Fix CLI commands briefly stealing focus (#2464)
  • Fix paste from Raycast and other apps using alternate plain-text UTIs (#2467)
  • Fix stray C insertion from Speakly dictation (#2413)
  • Fix Korean IME jamo leak during composition (#2529)
  • Stop swallowing / and ? on ABC-QWERTZ keyboard layouts (#2447)
  • Keep prompt colors when zsh switches local TERM to xterm-256color (#2613)
  • Ensure shell integrations always dispatch claude through the bundled wrapper (#2465)
  • Fix shell integration review regressions (#2466)
  • Fix React Grab Cmd+Shift+G terminal round-trip (#2615)
  • Suppress cmd-hover path highlighting while terminal selection is active (#2579)
  • Keep cmux browser Find shortcuts authoritative over page handlers (#2356)
  • Fix minimal-mode tab bar disappearing in fullscreen (#2375)
  • Fix transparent background flash during sidebar toggle (#2378)
  • Fix macOS 26 glass window gating (#2468)
  • Fix fullscreen new windows opening in the current Space (#2345)
  • Fix Dock persistence for manual app icons (#2360)
  • Fix update error details dialog overflow (#2359)
  • Fix Ctrl+K reaching the command palette text editor (#2394)
  • Keep Cmd+P stable during animated workspace title updates (#2393)
  • Fix Cmd+P workspace retention for the main CI workspace (#2412)
  • Coalesce portal sync to latest geometry to fix browser overlay drift (#2214)
  • Fix claude_vm_node OOM behavior and hook payload retention (#2462)
  • Fix GitHub star badge k formatting (#2473)
  • Keep GitHub stars badge stable across navigation (#2476)
  • Fix web header overlap (#2452)

Thanks to 3 contributors!

[0.63.1] - 2026-03-28

Fixed

  • Fix crash on startup after upgrading from older versions due to stale window geometry data (#2306)
  • Fix re-entrant displayIfNeeded crash during layout follow-up from SwiftUI geometry changes (#2305) — thanks @KyleJamesWalker!
  • Fix macOS compatibility with versioned geometry persistence to prevent future upgrade crashes (#2308)

Thanks to 2 contributors!

[0.63.0] - 2026-03-28

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)

[0.62.2] - 2026-03-14

Added

  • Configurable sidebar tint color with separate light/dark mode support via Settings and config file (sidebar-background, sidebar-tint-opacity) (#1465)
  • Cmd+P all-surfaces search option (#1382)
  • cmux themes command with bundled Ghostty themes (#1334, #1314)
  • Sidebar can now shrink to smaller widths (#1420)
  • Menu bar visibility setting (#1330)

Changed

  • CLI Sentry events are now tagged with the app release (#1408)
  • Stable socket listener now falls back to a user-scoped path, and repeated startup failures are throttled (#1351, #1415)

Fixed

  • Command palette command-mode shortcut, navigation, and omnibar backspace or arrow-key regressions (#1417, #1413)
  • Stale Claude sidebar status from missing hooks, OSC suppression, and PID cleanup (#1306)
  • Split cwd inheritance when the shell cwd is stale (#1403)
  • Crashes when creating a new workspace and when inserting a workspace into an orphaned window context (#1391, #1380)
  • Cmd+W close behavior and close-confirmation shell-state regressions (#1395, #1386)
  • macOS dictation NSTextInputClient conformance and terminal image-paste fallbacks (#1410, #1305, #1361, #1358)
  • VS Code command palette target resolution, Ghostty Pure prompt redraws, and internal drag regressions (#1389, #1363, #1316, #1379)

[0.62.1] - 2026-03-13

Added

  • Cmd+T (New tab) shortcut on the welcome screen (#1258)

Fixed

  • Cmd+backtick window cycling skipping windows
  • Titlebar shortcut hint clipping (#1259)
  • Terminal portals desyncing after sidebar changes (#1253)
  • Background terminal focus retries reordering windows
  • Pure-style multiline prompt redraws in Ghostty
  • Return key not working on Cmd+Ctrl+W close confirmation (#1279)
  • Concurrent remote daemon RPC calls timing out (#1281)

Removed

  • SSH remote port proxying (reverted, will return in a future release)

[0.62.0] - 2026-03-12

Added

  • Markdown viewer panel with live file watching (#883)
  • Find-in-page (Cmd+F) for browser panels (#837, #875)
  • Keyboard copy mode for terminal scrollback with vi-style navigation (#792)
  • Custom notification sounds with file picker support (#839, #869)
  • Browser camera and microphone permission support (#760, #913)
  • Language setting for per-app locale override (#886)
  • Japanese localization (#819)
  • 16 new languages added to localization (#895)
  • Kagi as a search provider option (#561)
  • Open Folder command (Cmd+O) (#656)
  • Dark mode app icon for macOS Sequoia (#702)
  • Close other pane tabs with confirmation (#475)
  • Flash Focused Panel command palette action (#638)
  • Zoom/maximize focused pane in splits (#634)
  • cmux tree command for full CLI hierarchy view (#592)
  • Install or uninstall the cmux CLI from the command palette (#626)
  • Clipboard image paste in terminal with Cmd+V (#562, #853)
  • Middle-click X11-style selection paste in terminal (#369)
  • Honor Ghostty background-opacity across all cmux chrome (#667)
  • Setting to hide Cmd-hold shortcut hints (#765)
  • Focus-follows-mouse on terminal hover (#519)
  • Sidebar help menu in the footer (#958)
  • External URL bypass rules for the embedded browser (#768)
  • Telemetry opt-out setting (#610)
  • Browser automation docs page (#622)
  • Vim mode indicator badge on terminal panes (#1092)
  • Sidebar workspace color in CLI sidebar_state output (#1101)
  • Prompt before closing window with Cmd+Ctrl+W (#1219)
  • Jump to Latest button in notifications popover (#1167)
  • Khmer localization (#1198)
  • cmux claude-teams launcher (#1179)

Changed

  • Command palette search is now async and decoupled from typing for reduced lag
  • Fuzzy matching improved with single-edit and omitted-character word matches
  • Replaced keychain password storage with file-based storage (#576)
  • Fullscreen shortcut changed to Cmd+Ctrl+F, and Cmd+Enter also toggles fullscreen (#530)
  • Workspace rename shortcut Cmd+Shift+R now uses the command palette flow
  • Renamed tab color to workspace color in user-facing strings (#637)
  • Feedback recipient changed to feedback@manaflow.com (#1007)
  • Regenerated app icons from Icon Composer (#1005)
  • Moved update logs into the Debug menu (#1008)
  • Updated Ghostty to v1.3.0 (#1142)
  • Welcome screen colors adapted for light mode (#1214)
  • Notification sound picker width constrained (#1168)

Fixed

  • Frozen blank launch from session restore race condition (#399, #565)
  • Crash on launch from an exclusive access violation in drag-handle hit testing (#490)
  • Use-after-free in ghostty_surface_refresh after sleep/wake (#432, #619)
  • Startup SIGSEGV by pre-warming locale before SentrySDK.start (#927)
  • IME issues: Shift+Space toggle inserting a space (#641, #670), Ctrl fast path blocking IME events, browser address bar Japanese IME (#789, #867), and Cmd shortcuts during IME composition
  • CLI socket autodiscovery for tagged sockets (#832)
  • Flaky CLI socket listener recovery (#952, #954)
  • Side-docked dev tools resize (#712)
  • Dvorak Cmd+C colliding with the notifications shortcut (#762)
  • Terminal drag hover overlay flicker
  • Titlebar controls clipped at the bottom edge (#1016)
  • Sidebar git branch recovery after sleep/wake and agent checkout (#494, #671, #905)
  • Browser portal routing, uploads, and click focus regressions (#908, #961)
  • Notification unread persistence on workspace focus
  • Escape propagation when the command palette is visible (#847)
  • Cmd+Shift+Enter pane zoom regression in browser focus (#826)
  • Cross-window theme background after jump-to-unread (#861)
  • window.open() and target=_blank not opening in a new tab (#693)
  • Terminal wrap width for the overlay scrollbar (#522)
  • Orphaned child processes when closing workspace tabs (#889)
  • Cmd+F Escape passthrough into terminal (#918)
  • Terminal link opens staying in the source workspace (#912)
  • Ghost terminal surface rebind after close (#808)
  • Cmd+plus zoom handling on non-US keyboard layouts (#680)
  • Menubar icon invisible in light mode (#741)
  • Various drag-handle crash fixes and reentrancy guards
  • Background workspace git metadata refresh after external checkout
  • Markdown panel text click focus (#991)
  • Browser Cmd+F overlay clipping in portal mode (#916)
  • Voice dictation text insertion (#857)
  • Browser panel lifecycle after WebContent process termination (#892)
  • Typing lag reduction by hiding invisible views from the accessibility tree (#862)
  • CJK font fallback preventing decorative font rendering for CJK characters (#1017)
  • Inline VS Code serve-web token exposure via argv (#1033)
  • Browser pane portal anchor sizing (#1094)
  • Pinned workspace notification reordering (#1116)
  • cmux --version memory blowup (#1121)
  • Notification ring dismissal on direct terminal clicks (#1126)
  • Browser portal visibility when terminal tab is active (#1130)
  • Browser panes reloading when switching workspaces (#1136)
  • Sidebar PR badge detection (#1139)
  • Browser address bar disappearing during pane zoom (#1145)
  • Ghost terminal surface focus after split close (#1148)
  • Browser DevTools resize loop and layout stability (#1170, #1173, #1189)
  • Typing lag from sidebar re-evaluation and hitTest overhead (#1204)
  • Browser pane stale content after drag splits (#1215)
  • Terminal drop overlay misplacement during drag hover (#1213)
  • Hidden browser slot inspector focus crash (#1211)
  • Browser devtools hide fallback (#1220)
  • Browser portal refresh on geometry churn (#1224)
  • Browser tab switch triggering unnecessary reload (#1228)
  • Devtools side dock guard for attached devtools (#1230)

Thanks to 24 contributors!

[0.61.0] - 2026-02-25

Added

  • Command palette (Cmd+Shift+P) with update actions and all-window switcher results (#358, #361)
  • Split actions and shortcut hints in terminal context menus
  • Cross-window tab and workspace move UI with improved destination focus behavior
  • Sidebar pull request metadata rows and workspace PR open actions
  • Workspace color schemes and left-rail workspace indicator settings (#324, #329, #332)
  • URL open-wrapper routing into the embedded browser (#332)
  • Cmd+Q quit warning with suppression toggle (#295)
  • cmux --version output now includes commit metadata

Changed

  • Added light mode and unified theme refresh across app surfaces (#258) — thanks @ijpatricio for the report!
  • Browser link middle-click handling now uses native WebKit behavior (#416)
  • Settings-window actions now route through a single command-palette/settings flow
  • Sentry upgraded with tracing, breadcrumbs, and dSYM upload support (#366)
  • Session restore scope clarification: cmux restores layout, working directory, scrollback, and browser history, but does not resume live terminal process state yet

Fixed

  • Startup split hang when pressing Cmd+D then Ctrl+D early after launch (#364)
  • Browser focus handoff and click-to-focus regressions in mixed terminal/browser workspaces (#381, #355)
  • Caps Lock handling in browser omnibar keyboard paths (#382)
  • Embedded browser deeplink URL scheme handling (#392)
  • Sidebar resize cap regression (#393)
  • Terminal zoom inheritance for new splits, surfaces, and workspaces (#384)
  • Terminal find overlay layering across split and portal-hosted layouts
  • Titlebar drag and double-click zoom handling on browser-side panes
  • Stale browser favicon and window-title updates after navigation

Thanks to 7 contributors!

[0.60.0] - 2026-02-21

Added

  • Tab context menu with rename, close, unread, and workspace actions (#225)
  • Cmd+Shift+T reopens closed browser panels (#253)
  • Vertical sidebar branch layout setting showing git branch and directory per pane
  • JavaScript alert/confirm/prompt dialogs in browser panel (#237)
  • File drag-and-drop and file input in browser panel (#214)
  • tmux-compatible command set with matrix tests (#221)
  • Pane resize divider control via CLI (#223)
  • Production read-screen capture APIs (#219)
  • Notification rings on terminal panes (#132)
  • Claude Code integration enabled by default (#247)
  • HTTP host allowlist for embedded browser with save and proceed flow (#206, #203)
  • Setting to disable workspace auto-reorder on notification (#215)
  • Browser panel mouse back/forward buttons and middle-click close (#139)
  • Browser DevTools shortcut wiring and persistence (#117)
  • CJK IME input support for Korean, Chinese, and Japanese (#125)
  • --help flag on CLI subcommands (#128)
  • --command flag for new-workspace CLI command (#121)
  • rename-tab socket command (#260)
  • Remap-aware bonsplit tooltips and browser split shortcuts (#200)

Fixed

  • IME preedit anchor sizing (#266)
  • Cmd+Shift+T focus against deferred stale callbacks (#267)
  • Unknown Bonsplit tab context actions causing crash (#264)
  • Socket CLI commands stealing macOS app focus (#260)
  • CLI unix socket lag from main-thread blocking (#259)
  • Main-thread notification cascade causing hangs (#232)
  • Favicon out-of-sync during back/forward navigation (#233)
  • Stale sidebar git branch after closing a split
  • Browser download UX and crash path (#235)
  • Browser reopen focus across workspace switches (#257)
  • Mark Tab as Unread no-op on focused tab (#249)
  • Split dividers disappearing in tiny panes (#250)
  • Flaky browser download activity accounting (#246)
  • Drag overlay routing and terminal overlay regressions (#218)
  • Initial bonsplit split animation flicker
  • Window top inset on new window creation (#224)
  • Cmd+Enter being routed as browser reload (#213)
  • Child-exit close for last-terminal workspaces (#254)
  • Sidebar resizer hitbox and cursor across portals (#255)
  • Workspace-scoped tab action resolution
  • IDN host allowlist normalization
  • setup.sh cache rebuild and stale lock timeout (#217)
  • Inconsistent Tab/Workspace terminology in settings and menus (#187)

Changed

  • CLI workspace commands now run off the main thread for better responsiveness (#270)
  • Remove border below titlebar (#242)
  • Slimmer browser omnibar with button hover/press states (#271)
  • Browser under-page background refreshes on theme updates (#272)
  • Command shortcut hints scoped to active window (#226)
  • Nightly and release assets are now immutable (no accidental overwrite) (#268, #269)

[0.59.0] - 2026-02-19

Fixed

  • Fix panel resize hitbox being too narrow and stale portal frame after panel resize

[0.58.0] - 2026-02-19

Fixed

  • Fix split blackout race condition and focus handoff when creating or closing splits

[0.57.0] - 2026-02-19

Added

  • Terminal panes now show an animated drop overlay when dragging tabs

Fixed

  • Fix blue hover not showing when dragging tabs onto terminal panes
  • Fix stale drag overlay blocking clicks after tab drag ends

[0.56.0] - 2026-02-19

No user-facing changes.

[0.55.0] - 2026-02-19

Changed

  • Move port scanning from shell to app-side with batching for faster startup

Fixed

  • Fix visual stretch when closing split panes
  • Fix omnibar Cmd+L focus races

[0.54.0] - 2026-02-18

Fixed

  • Fix browser omnibar Cmd+L causing 100% CPU from infinite focus loop

[0.53.0] - 2026-02-18

Changed

  • CLI commands are now workspace-relative: commands use CMUX_WORKSPACE_ID environment variable so background agents target their own workspace instead of the user's focused workspace
  • Remove all index-based CLI APIs in favor of short ID refs (surface:1, pane:2, workspace:3)
  • CLI send and send-key support --workspace and --surface flags for explicit targeting
  • CLI escape sequences (\n, \r, \t) in send payloads are now handled correctly
  • --id-format flag is respected in text output for all list commands

Fixed

  • Fix background agents sending input to the wrong workspace
  • Fix close-surface rejecting cross-workspace surface refs
  • Fix malformed surface/pane/workspace/window handles passing through without error
  • Fix --window flag being overridden by CMUX_WORKSPACE_ID environment variable

[0.52.0] - 2026-02-18

Changed

  • Faster workspace switching with reduced rendering churn

Fixed

  • Fix Finder file drop not reaching portal-hosted terminals
  • Fix unfocused pane dimming not showing for portal-hosted terminals
  • Fix terminal hit-testing and visual glitches during workspace teardown

[0.51.0] - 2026-02-18

Fixed

  • Fix menubar and right-click lag on M1 Macs in release builds
  • Fix browser panel opening new tabs on link click

[0.50.0] - 2026-02-18

Fixed

  • Fix crashes and fatal error when dropping files from Finder
  • Fix zsh git branch display not refreshing after changing directories
  • Fix menubar and right-click lag on M1 Macs

[0.49.0] - 2026-02-18

Fixed

  • Fix crash (stack overflow) when clicking after a Finder file drag
  • Fix titlebar folder icon briefly enlarging on workspace switch

[0.48.0] - 2026-02-18

Fixed

  • Fix right-click context menu lag in notarized builds by adding missing hardened runtime entitlements
  • Fix claude shim conflicting with --resume, --continue, and --session-id flags

[0.47.0] - 2026-02-18

Fixed

  • Fix sidebar tab drag-and-drop reordering not working

[0.46.0] - 2026-02-18

Fixed

  • Fix broken mouse click forwarding in terminal views

[0.45.0] - 2026-02-18

Changed

  • Rebuild with Xcode 26.2 and macOS 26.2 SDK

[0.44.0] - 2026-02-18

Fixed

  • Crash caused by infinite recursion when clicking in terminal (FileDropOverlayView mouse event forwarding)

[0.38.1] - 2026-02-18

Fixed

  • Right-click and menubar lag in production builds (rebuilt with macOS 26.2 SDK)

[0.38.0] - 2026-02-18

Added

  • Double-clicking the sidebar title-bar area now zooms/maximizes the window

Fixed

  • Browser omnibar Cmd+L now reliably refreshes/selects-all and supports immediate typing without stale inline text
  • Omnibar inline completion no longer replaces typed prefixes with mismatched suggestion text

[0.37.0] - 2026-02-17

Added

  • "+" button on the tab bar for quickly creating new terminal or browser tabs

[0.36.0] - 2026-02-17

Fixed

  • App hang when omnibar safety timeout failed to fire (blocked main thread)
  • Tab drag/drop not working when multiple workspaces exist
  • Clicking in browser WebView not focusing the browser tab

[0.35.0] - 2026-02-17

Fixed

  • App hang when clicking browser omnibar (NSTextView tracking loop spinning forever)
  • White flash when creating new browser panels
  • Tab drag/drop broken when dragging over WebView panes
  • Stale drag timeout cancelling new drags of the same tab
  • 88% idle CPU from infinite makeFirstResponder loop
  • Terminal keys (arrows, Ctrl+N/P) swallowed after opening browser
  • Cmd+N swallowed by browser omnibar navigation
  • Split focus stolen by re-entrant becomeFirstResponder during reparenting

[0.34.0] - 2026-02-16

Fixed

  • Browser not loading localhost URLs correctly

[0.33.0] - 2026-02-16

Fixed

  • Menubar and general UI lag in production builds
  • Sidebar tabs getting extra left padding when update pill is visible
  • Memory leak when middle-clicking to close tabs

[0.32.0] - 2026-02-16

Added

  • Sidebar metadata: git branch, listening ports, log entries, progress bars, and status pills

Fixed

  • localhost and 127.0.0.1 URLs not resolving correctly in the browser panel

Changed

  • browser open now targets the caller's workspace by default via CMUX_WORKSPACE_ID

[0.31.0] - 2026-02-15

Added

  • Arrow key navigation in browser omnibar suggestions
  • Browser zoom shortcuts (Cmd+/-, Cmd+0 to reset)
  • "Install Update and Relaunch" menu item when an update is available

Changed

  • Open browser shortcut remapped from Cmd+Shift+B to Cmd+Shift+L
  • Flash focused panel shortcut remapped from Cmd+Shift+L to Cmd+Shift+H
  • Update pill now shows only in the sidebar footer

Fixed

  • Omnibar inline completion showing partial domain (e.g. "news." instead of "news.ycombinator.com")

[0.30.0] - 2026-02-15

Fixed

  • Update pill not appearing when sidebar is visible in Release builds

[0.29.0] - 2026-02-15

Added

  • Cmd+click on links in the browser opens them in a new tab
  • Right-click context menu shows "Open Link in New Tab" instead of "Open in New Window"
  • Third-party licenses bundled in app with Licenses button in About window
  • Update availability pill now visible in Release builds

Changed

  • Cmd+[/] now triggers browser back/forward when a browser panel is focused (no-op on terminal)
  • Reload configuration shortcut changed to Cmd+Shift+,
  • Improved browser omnibar suggestions and focus behavior

[0.28.2] - 2026-02-14

Fixed

  • Sparkle updates from 0.27.0 could fail to detect newer releases because release build numbers were behind the latest published appcast build number
  • Release GitHub Action failed on repeat runs when SUPublicEDKey / SUFeedURL already existed in Info.plist

[0.28.1] - 2026-02-14

Fixed

  • Release build failure caused by debug-only helper symbols referenced in non-debug code paths

[0.28.0] - 2026-02-14

Added

  • Optional nightly update channel in Settings (Receive Nightly Builds)
  • Automated nightly build and publish workflow for main when new commits are available

Changed

  • Settings and About windows now use the updated transparent titlebar styling and aligned controls
  • Repository license changed to GNU AGPLv3

Fixed

  • Terminal panes freezing after repeated split churn
  • Finder service directory resolution now normalizes paths consistently

[0.27.0] - 2026-02-11

Fixed

  • Muted traffic lights and toolbar items on macOS 14 (Sonoma) caused by clipsToBounds default change
  • Toolbar buttons (sidebar, notifications, new tab) disappearing after toggling sidebar with Cmd+B
  • Update check pill not appearing in titlebar on macOS 14 (Sonoma)

[0.26.0] - 2026-02-11

Fixed

  • Muted traffic lights and toolbar items in focused window caused by background blur in themeFrame
  • Sidebar showing two different textures near the titlebar on older macOS versions

[0.25.0] - 2026-02-11

Fixed

  • Blank terminal on macOS 26 (Tahoe) — two additional code paths were still clearing the window background, bypassing the initial fix
  • Blank terminal on macOS 15 caused by background blur view covering terminal content

[0.24.0] - 2026-02-09

Changed

  • Update bundle identifier to com.cmuxterm.app for consistency

[0.23.0] - 2026-02-09

Changed

  • Rename app to cmux — new app name, socket paths, Homebrew tap, and CLI binary name (bundle ID remains com.cmuxterm.app for Sparkle update continuity)
  • Sidebar now shows tab status as text instead of colored dots, with instant git HEAD change detection

Fixed

  • CLI set-status command not properly quoting values or routing --tab flag

[0.22.0] - 2026-02-09

Fixed

  • Xcode and system environment variables (e.g. DYLD, LANGUAGE) leaking into terminal sessions

[0.21.0] - 2026-02-09

Fixed

  • Zsh autosuggestions not working with shared history across terminal panes

[0.17.3] - 2025-02-05

Fixed

  • Auto-update not working (Sparkle EdDSA signing was silently failing due to SUPublicEDKey missing from Info.plist)

[0.17.1] - 2025-02-05

Fixed

  • Auto-update not working (Sparkle public key was missing from release builds)

[0.17.0] - 2025-02-05

Fixed

  • Traffic lights (close/minimize/zoom) not showing on macOS 13-15
  • Titlebar content overlapping traffic lights and toolbar buttons when sidebar is hidden

[0.16.0] - 2025-02-04

Added

  • Sidebar blur effect with withinWindow blending for a polished look
  • --panel flag for new-split command to control split pane placement

[0.15.0] - 2025-01-30

Fixed

  • Typing lag caused by redundant render loop

[0.14.0] - 2025-01-30

Added

  • Setup script for initializing submodules and building dependencies
  • Contributing guide for new contributors

Fixed

  • Terminal focus when scrolling with mouse/trackpad

Changed

  • Reload scripts are more robust with better error handling

[0.13.0] - 2025-01-29

Added

  • Customizable keyboard shortcuts via Settings

Fixed

  • Find panel focus and search alignment with Ghostty behavior

Changed

  • Sentry environment now distinguishes between production and dev builds

[0.12.0] - 2025-01-29

Fixed

  • Handle display scale changes when moving between monitors

Changed

  • Fix SwiftPM cache handling for release builds

[0.11.0] - 2025-01-29

Added

  • Notifications documentation for AI agent integrations

Changed

  • App and tooling updates

[0.10.0] - 2025-01-29

Added

  • Sentry SDK for crash reporting
  • Documentation site with Fumadocs
  • Homebrew installation support (brew install --cask cmux)
  • Auto-update Homebrew cask on release

Fixed

  • High CPU usage from notification system
  • Release workflow SwiftPM cache issues

Changed

  • New tabs now insert after current tab and inherit working directory

[0.9.0] - 2025-01-29

Changed

  • Normalized window controls appearance
  • Added confirmation panel when closing windows with active processes

[0.8.0] - 2025-01-29

Fixed

  • Socket key input handling
  • OSC 777 notification sequence support

Changed

  • Customized About window
  • Restricted titlebar accessories for cleaner appearance

[0.7.0] - 2025-01-29

Fixed

  • Environment variable and terminfo packaging issues
  • XDG defaults handling

[0.6.0] - 2025-01-28

Fixed

  • Terminfo packaging for proper terminal compatibility

[0.5.0] - 2025-01-28

Added

  • Sparkle updater cache handling
  • Ghostty fork documentation

[0.4.0] - 2025-01-28

Added

  • cmux CLI with socket control modes
  • NSPopover-based notifications

Fixed

  • Notarization and codesigning for embedded CLI
  • Release workflow reliability

Changed

  • Refined titlebar controls and variants
  • Clear notifications on window close

[0.3.0] - 2025-01-28

Added

  • Debug scrollback tab with smooth scroll wheel
  • Mock update feed UI tests
  • Dev build branding and reload scripts

Fixed

  • Notification focus handling and indicators
  • Tab focus for key input
  • Update UI error details and pill visibility

Changed

  • Renamed app to cmux
  • Improved CI UI test stability

[0.1.0] - 2025-01-28

Added

  • Sparkle auto-update flow
  • Titlebar update UI indicator

[0.0.x] - 2025-01-28

Initial releases with core terminal functionality:

  • GPU-accelerated terminal rendering via Ghostty
  • Tab management with native macOS UI
  • Split pane support
  • Keyboard shortcuts
  • Socket API for automation