# cmux 0.64.0: Session Restore on Quit, Passkeys, File Explorer, Task Manager

[ Changelog](https://cmux.com/docs/changelog)


May 5, 2026

### Session Restore on Quit

Closing the last window with the red X no longer drops your work. cmux restores prior panes on relaunch and resumes Claude Code, Codex, OpenCode, Gemini, and Rovo Dev sessions where you left off.

### Passkeys, WebAuthn, and FIDO2

Sign in to passkey-protected sites directly inside cmux browser panes. Reworked inside-out signing keeps the notarized Developer ID build compatible with macOS authentication services.

### File Explorer

A Finder-like file explorer sidebar with full SSH support so remote workspaces get the same tree view as local ones.

### Task Manager

A built-in Task Manager window plus cmux top CLI shows a live snapshot of windows, workspaces, panes, surfaces, and browser webviews, with jumps from the manager into the matching surface.

Added

-   Restore prior panes and resume Claude Code, Codex, OpenCode, Gemini, and Rovo Dev sessions across relaunch, including when you close the last window with the red X ([#2936](https://github.com/manaflow-ai/cmux/pull/2936), [#2978](https://github.com/manaflow-ai/cmux/pull/2978), [#3259](https://github.com/manaflow-ai/cmux/pull/3259), [#3419](https://github.com/manaflow-ai/cmux/pull/3419), [#3429](https://github.com/manaflow-ai/cmux/pull/3429), [#3487](https://github.com/manaflow-ai/cmux/pull/3487), [#3528](https://github.com/manaflow-ai/cmux/pull/3528), [#3530](https://github.com/manaflow-ai/cmux/pull/3530), [#3535](https://github.com/manaflow-ai/cmux/pull/3535))
-   Passkey, WebAuthn, and FIDO2 support in browser panes ([#2660](https://github.com/manaflow-ai/cmux/pull/2660), [#2727](https://github.com/manaflow-ai/cmux/pull/2727), [#2905](https://github.com/manaflow-ai/cmux/pull/2905), [#2908](https://github.com/manaflow-ai/cmux/pull/2908))
-   Task Manager window and `cmux top` CLI for window, workspace, pane, surface, and browser webview snapshots ([#3290](https://github.com/manaflow-ai/cmux/pull/3290), [#3471](https://github.com/manaflow-ai/cmux/pull/3471))
-   Finder-like file explorer sidebar with SSH support ([#1963](https://github.com/manaflow-ai/cmux/pull/1963))
-   File preview panels in the sidebar ([#3139](https://github.com/manaflow-ai/cmux/pull/3139))
-   Menu bar only mode ([#3181](https://github.com/manaflow-ai/cmux/pull/3181))
-   System-wide hotkey to show and hide cmux windows ([#2389](https://github.com/manaflow-ai/cmux/pull/2389))
-   Cursor and Gemini CLI agent integrations with `setup-hooks` ([#2717](https://github.com/manaflow-ai/cmux/pull/2717))
-   iMessage mode for agent prompts ([#3252](https://github.com/manaflow-ai/cmux/pull/3252))
-   Settings sidebar shell and unified config utility window with cmux, Ghostty, and synced tabs ([#3024](https://github.com/manaflow-ai/cmux/pull/3024), [#3244](https://github.com/manaflow-ai/cmux/pull/3244), [#3400](https://github.com/manaflow-ai/cmux/pull/3400))
-   Make `cmux.json` the canonical settings file with JSONC parsing and legacy `settings.json` fallback ([#3409](https://github.com/manaflow-ai/cmux/pull/3409), [#3424](https://github.com/manaflow-ai/cmux/pull/3424))
-   Configurable `cmux.json` workspace and tab bar plus-button actions ([#3084](https://github.com/manaflow-ai/cmux/pull/3084), [#3348](https://github.com/manaflow-ai/cmux/pull/3348))
-   Configurable surface tab bar font size ([#2645](https://github.com/manaflow-ai/cmux/pull/2645))
-   Configurable workspace recoloring actions, default-bound to Ctrl+Option+0 through Ctrl+Option+9 ([#3327](https://github.com/manaflow-ai/cmux/pull/3327))
-   Allow space as a bindable key, allow keyboard shortcuts to be unbound, and make reload and rename shortcuts context-aware ([#3333](https://github.com/manaflow-ai/cmux/pull/3333), [#3334](https://github.com/manaflow-ai/cmux/pull/3334), [#3468](https://github.com/manaflow-ai/cmux/pull/3468))
-   Inline recorder messages explaining shortcut rejections and offering localized Reassign for conflicts ([#3035](https://github.com/manaflow-ai/cmux/pull/3035))
-   Help menu with cmux docs nav, Skills, Agent Integrations submenu, and `skills.sh` install flow ([#3402](https://github.com/manaflow-ai/cmux/pull/3402))
-   Find in directory shortcut ([#3208](https://github.com/manaflow-ai/cmux/pull/3208))
-   Move tabs into new workspaces ([#3285](https://github.com/manaflow-ai/cmux/pull/3285))
-   Hover tooltips on workspace and pane tabs ([#3329](https://github.com/manaflow-ai/cmux/pull/3329))
-   Command palette ID copy actions and copy ID context menu actions ([#3183](https://github.com/manaflow-ai/cmux/pull/3183), [#3247](https://github.com/manaflow-ai/cmux/pull/3247))
-   Command palette actions for right sidebar modes ([#3408](https://github.com/manaflow-ai/cmux/pull/3408))
-   macOS clear glass background blur support ([#3313](https://github.com/manaflow-ai/cmux/pull/3313))
-   Focus-neutral split-off layout command ([#3484](https://github.com/manaflow-ai/cmux/pull/3484))
-   `--layout` parameter on `workspace.create` for programmatic split layouts ([#2916](https://github.com/manaflow-ai/cmux/pull/2916)) -- thanks @talldan!
-   Korean (ko) localization ([#2885](https://github.com/manaflow-ai/cmux/pull/2885)) -- thanks @say8425!
-   Opt-in setting to open Cmd-clicked Markdown files in the cmux Markdown viewer ([#2904](https://github.com/manaflow-ai/cmux/pull/2904)) -- thanks @SeongJaeSong!
-   cmux browser disable switch ([#3256](https://github.com/manaflow-ai/cmux/pull/3256))
-   Markdown and plain-text variants for docs pages plus `/llms.txt` index for agent consumption ([#3410](https://github.com/manaflow-ai/cmux/pull/3410))

Changed

-   Coalesce sidebar PR polling per-repo, drop checks fetch, and state-machine the probe queue to avoid GitHub rate limits ([#2585](https://github.com/manaflow-ai/cmux/pull/2585), [#2662](https://github.com/manaflow-ai/cmux/pull/2662))
-   Speed up large terminal pastes by skipping eager HTML/RTF decoding when plain text is available ([#3000](https://github.com/manaflow-ai/cmux/pull/3000))
-   Use workspace color for selected sidebar rows and the left rail ([#3038](https://github.com/manaflow-ai/cmux/pull/3038), [#3082](https://github.com/manaflow-ai/cmux/pull/3082), [#3310](https://github.com/manaflow-ai/cmux/pull/3310))
-   Improve default light and dark theme fallback ([#3123](https://github.com/manaflow-ai/cmux/pull/3123))
-   Sidebar PR clickability defaults to on, with visibility split from clickability as a separate setting ([#3273](https://github.com/manaflow-ai/cmux/pull/3273), [#3492](https://github.com/manaflow-ai/cmux/pull/3492))
-   Make hook notifications non-blocking ([#3218](https://github.com/manaflow-ai/cmux/pull/3218))
-   Clean up Claude session titles, render slash-command markup as readable titles, and skip meta caveats ([#3211](https://github.com/manaflow-ai/cmux/pull/3211))
-   Apply sidebar background to right panel and consolidate sidebar settings ([#3103](https://github.com/manaflow-ai/cmux/pull/3103), [#3400](https://github.com/manaflow-ai/cmux/pull/3400))
-   Improve settings search aliases with localized variants ([#3294](https://github.com/manaflow-ai/cmux/pull/3294), [#3296](https://github.com/manaflow-ai/cmux/pull/3296))
-   Disable right sidebar horizontal scroll ([#3202](https://github.com/manaflow-ai/cmux/pull/3202))
-   Optimize surface config reload ([#3480](https://github.com/manaflow-ai/cmux/pull/3480))
-   Auto-hide terminal scroll bar with disable setting on TUI alt-screen ([#2678](https://github.com/manaflow-ai/cmux/pull/2678), [#2729](https://github.com/manaflow-ai/cmux/pull/2729))
-   Show Codex TUI errors in the sidebar ([#3212](https://github.com/manaflow-ai/cmux/pull/3212))
-   Keep Cmd-Shift-N windows on the source display ([#3214](https://github.com/manaflow-ai/cmux/pull/3214))
-   Select find text on repeated Cmd+F ([#3314](https://github.com/manaflow-ai/cmux/pull/3314))
-   Disable Claude OSC notifications in the cmux wrapper and gate Claude OSC suppression on integration setting ([#3418](https://github.com/manaflow-ai/cmux/pull/3418), [#3474](https://github.com/manaflow-ai/cmux/pull/3474))
-   Namespace agent hook CLI commands ([#3298](https://github.com/manaflow-ai/cmux/pull/3298))

Fixed

-   Fix shell integration not injected when Ghostty `ZDOTDIR` overrides the wrapper ([#2778](https://github.com/manaflow-ai/cmux/pull/2778)) -- thanks @michaeljauk!
-   Allow symlinked Ghostty config files ([#2813](https://github.com/manaflow-ai/cmux/pull/2813)) -- thanks @ivanrvpereira!
-   Fix paste only pasting first character ([#2847](https://github.com/manaflow-ai/cmux/pull/2847)) -- thanks @dezren39!
-   Prefer UTF-8 plain text in the pasteboard to avoid Mac OS Roman character loss ([#2877](https://github.com/manaflow-ai/cmux/pull/2877)) -- thanks @dasanworld!
-   Fix blank split panes after portal reveal ([#2840](https://github.com/manaflow-ai/cmux/pull/2840)) -- thanks @jaynora2026!
-   Fix workspace color picker context menu blinking ([#2566](https://github.com/manaflow-ai/cmux/pull/2566))
-   Hide stale startup workspace portals during teardown ([#2658](https://github.com/manaflow-ai/cmux/pull/2658))
-   Fix AX window polling stalls with app hierarchy caching ([#2986](https://github.com/manaflow-ai/cmux/pull/2986))
-   Fix close confirmation bypass when spamming close ([#2989](https://github.com/manaflow-ai/cmux/pull/2989))
-   Fix multi-workspace close confirmation modality ([#3153](https://github.com/manaflow-ai/cmux/pull/3153))
-   Fix Cmd/Ctrl shortcut hint parity ([#2994](https://github.com/manaflow-ai/cmux/pull/2994))
-   Cancel drag on Escape ([#3013](https://github.com/manaflow-ai/cmux/pull/3013))
-   Pin regular-weight Japanese auto-fallback face ([#3015](https://github.com/manaflow-ai/cmux/pull/3015))
-   Fix 100% CPU from ContentView publisher feedback loop ([#3028](https://github.com/manaflow-ai/cmux/pull/3028))
-   Fix `DebugEventLog` `NSFileHandle` ObjC exception crash ([#3034](https://github.com/manaflow-ai/cmux/pull/3034))
-   Fix main-thread blocking in workspace PR refresh ([#3036](https://github.com/manaflow-ai/cmux/pull/3036))
-   Fix terminal blanking after OSC completion notifications ([#3048](https://github.com/manaflow-ai/cmux/pull/3048))
-   Fix blank terminal after workspace selection ([#3012](https://github.com/manaflow-ai/cmux/pull/3012))
-   Fix minimal-mode traffic-light inset, new-window Bonsplit tab bar, window routing, portal hit testing, drag pass-through, and pane tab rendering ([#3055](https://github.com/manaflow-ai/cmux/pull/3055), [#3150](https://github.com/manaflow-ai/cmux/pull/3150), [#3194](https://github.com/manaflow-ai/cmux/pull/3194), [#3399](https://github.com/manaflow-ai/cmux/pull/3399))
-   Drop stale merged PRs from the sidebar badge selection ([#3063](https://github.com/manaflow-ai/cmux/pull/3063))
-   Fix transparent titlebar backdrop matching and sidebar tint backdrop ownership ([#3179](https://github.com/manaflow-ai/cmux/pull/3179), [#3382](https://github.com/manaflow-ai/cmux/pull/3382))
-   Fix feedback editor scrolling ([#3182](https://github.com/manaflow-ai/cmux/pull/3182))
-   Fix bare `window.open(_blank)` routing in browser panes ([#3262](https://github.com/manaflow-ai/cmux/pull/3262))
-   Fix non-ASCII Cmd+V paste when rich clipboard payloads are lossy ([#3268](https://github.com/manaflow-ai/cmux/pull/3268))
-   Fix locale separators in sidebar identifiers ([#3269](https://github.com/manaflow-ai/cmux/pull/3269))
-   Deduplicate numpad input across IME full-to-half-width transition ([#3292](https://github.com/manaflow-ai/cmux/pull/3292))
-   Follow up equalize splits shortcut fixes ([#3309](https://github.com/manaflow-ai/cmux/pull/3309))
-   Make find escape behavior consistent ([#3330](https://github.com/manaflow-ai/cmux/pull/3330))
-   Fix unbound Cmd+Shift forwarding to terminal ([#3332](https://github.com/manaflow-ai/cmux/pull/3332))
-   Make Ctrl+P command palette navigation remappable and Cmd+D new-tab shortcut rebindable ([#3335](https://github.com/manaflow-ai/cmux/pull/3335), [#3338](https://github.com/manaflow-ai/cmux/pull/3338), [#3398](https://github.com/manaflow-ai/cmux/pull/3398))
-   Prevent shortcut recorder keys from navigating Settings ([#3377](https://github.com/manaflow-ai/cmux/pull/3377))
-   Preserve context-separated shortcuts through recorder swaps ([#3489](https://github.com/manaflow-ai/cmux/pull/3489))
-   Fix browser tab drag to new workspace, drops into sidebar workspaces, and terminal portal tab drop routing ([#3299](https://github.com/manaflow-ai/cmux/pull/3299), [#3381](https://github.com/manaflow-ai/cmux/pull/3381), [#3430](https://github.com/manaflow-ai/cmux/pull/3430))
-   Fix Cmd+Shift+Enter pane zoom for browser panes ([#3520](https://github.com/manaflow-ai/cmux/pull/3520))
-   Fix terminal focus after browser split ([#3460](https://github.com/manaflow-ai/cmux/pull/3460))
-   Fix shortcut settings dispatch\_once launch crash and settings-file launch crash paths ([#3455](https://github.com/manaflow-ai/cmux/pull/3455), [#3476](https://github.com/manaflow-ai/cmux/pull/3476))
-   Fix editable shortcuts from `settings.json` ([#3462](https://github.com/manaflow-ai/cmux/pull/3462))
-   Fix live theme picker application, launch theme before app appearance exists, and cmux theme picker Enter from search ([#3221](https://github.com/manaflow-ai/cmux/pull/3221), [#3378](https://github.com/manaflow-ai/cmux/pull/3378), [#3431](https://github.com/manaflow-ai/cmux/pull/3431), [#3479](https://github.com/manaflow-ai/cmux/pull/3479))
-   Clamp Settings window away from display edge ([#3436](https://github.com/manaflow-ai/cmux/pull/3436))
-   Fix SSH `LocalCommand` incompatibility with Fish shell ([#3506](https://github.com/manaflow-ai/cmux/pull/3506), [#3534](https://github.com/manaflow-ai/cmux/pull/3534))
-   Fix OMX HUD bottom pane placement ([#3516](https://github.com/manaflow-ai/cmux/pull/3516))
-   Fix inherited Claude auth env in cmux terminals ([#3519](https://github.com/manaflow-ai/cmux/pull/3519))
-   Fix config window to open active cmux Ghostty config ([#3525](https://github.com/manaflow-ai/cmux/pull/3525))
-   Fix notification dismissal with stale app focus ([#3532](https://github.com/manaflow-ai/cmux/pull/3532))
-   Persist app icon mode on the app bundle ([#2884](https://github.com/manaflow-ai/cmux/pull/2884))
-   Fix appIcon=automatic crash on macOS Tahoe ([#2833](https://github.com/manaflow-ai/cmux/pull/2833))
-   Fix terminal selection autoscroll past viewport edge ([#2725](https://github.com/manaflow-ai/cmux/pull/2725))
-   Fix command-hold shortcut hints and prevent sidebar truncation ([#2767](https://github.com/manaflow-ai/cmux/pull/2767))
-   Fix Raycast paste fallback regression ([#2768](https://github.com/manaflow-ai/cmux/pull/2768))
-   Fix Cmd+Shift+V paste in browser pane ([#2779](https://github.com/manaflow-ai/cmux/pull/2779))
-   Fix up/down arrow keys in browser surface ([#2780](https://github.com/manaflow-ai/cmux/pull/2780))
-   Fix Cmd+click file path punctuation trimming ([#2831](https://github.com/manaflow-ai/cmux/pull/2831))
-   Fix bilibili search popup opening detached window ([#2836](https://github.com/manaflow-ai/cmux/pull/2836))
-   Fix macOS modifier desync causing idle terminal input corruption ([#2855](https://github.com/manaflow-ai/cmux/pull/2855))
-   Fix scrollback-limit byte handling ([#2927](https://github.com/manaflow-ai/cmux/pull/2927))
-   Fix LinkedIn external-link redirect handoff in browser pane ([#2930](https://github.com/manaflow-ai/cmux/pull/2930))
-   Fix OpenCode bracketed paste fallback in terminal ([#2971](https://github.com/manaflow-ai/cmux/pull/2971))
-   Fix startup hang from repeated file drop overlay install ([#2972](https://github.com/manaflow-ai/cmux/pull/2972))
-   Fix `cmux.json` named workspace colors ([#3149](https://github.com/manaflow-ai/cmux/pull/3149))
-   Keep selected workspace visible in the sidebar ([#3152](https://github.com/manaflow-ai/cmux/pull/3152))
-   Hide portals for unmounted workspaces ([#3155](https://github.com/manaflow-ai/cmux/pull/3155))
-   Fix Bonsplit tab bar height and selected tab separator ([#3331](https://github.com/manaflow-ai/cmux/pull/3331), [#3351](https://github.com/manaflow-ai/cmux/pull/3351))
-   Fix browser omnibar typing lag with many workspaces ([#3422](https://github.com/manaflow-ai/cmux/pull/3422))
-   Fix nightly codesigning for nested bundles, Sparkle executables, and dock tile plugin ([#2676](https://github.com/manaflow-ai/cmux/pull/2676), [#2677](https://github.com/manaflow-ai/cmux/pull/2677), [#2679](https://github.com/manaflow-ai/cmux/pull/2679), [#2680](https://github.com/manaflow-ai/cmux/pull/2680))

Contributors

[![austinywang](https://cmux.com/_next/image?url=https%3A%2F%2Fgithub.com%2Faustinywang.png%3Fsize%3D48&w=48&q=75)austinywang](https://github.com/austinywang) [![dasanworld](https://cmux.com/_next/image?url=https%3A%2F%2Fgithub.com%2Fdasanworld.png%3Fsize%3D48&w=48&q=75)dasanworld](https://github.com/dasanworld) [![dezren39](https://cmux.com/_next/image?url=https%3A%2F%2Fgithub.com%2Fdezren39.png%3Fsize%3D48&w=48&q=75)dezren39](https://github.com/dezren39) [![ivanrvpereira](https://cmux.com/_next/image?url=https%3A%2F%2Fgithub.com%2Fivanrvpereira.png%3Fsize%3D48&w=48&q=75)ivanrvpereira](https://github.com/ivanrvpereira) [![jaynora2026](https://cmux.com/_next/image?url=https%3A%2F%2Fgithub.com%2Fjaynora2026.png%3Fsize%3D48&w=48&q=75)jaynora2026](https://github.com/jaynora2026) [![lawrencecchen](https://cmux.com/_next/image?url=https%3A%2F%2Fgithub.com%2Flawrencecchen.png%3Fsize%3D48&w=48&q=75)lawrencecchen](https://github.com/lawrencecchen) [![michaeljauk](https://cmux.com/_next/image?url=https%3A%2F%2Fgithub.com%2Fmichaeljauk.png%3Fsize%3D48&w=48&q=75)michaeljauk](https://github.com/michaeljauk) [![say8425](https://cmux.com/_next/image?url=https%3A%2F%2Fgithub.com%2Fsay8425.png%3Fsize%3D48&w=48&q=75)say8425](https://github.com/say8425) [![SeongJaeSong](https://cmux.com/_next/image?url=https%3A%2F%2Fgithub.com%2FSeongJaeSong.png%3Fsize%3D48&w=48&q=75)SeongJaeSong](https://github.com/SeongJaeSong) [![talldan](https://cmux.com/_next/image?url=https%3A%2F%2Fgithub.com%2Ftalldan.png%3Fsize%3D48&w=48&q=75)talldan](https://github.com/talldan)

[ cmux 0.63.2](https://cmux.com/docs/changelog/0.63.2) [cmux 0.64.1 ](https://cmux.com/docs/changelog/0.64.1)

Canonical: https://cmux.com/docs/changelog/0.64.0

Documentation index: https://cmux.com/llms.txt