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cmux

v0.64.12 Feature

This release adds 3 notable features for engineering teams evaluating rollout.

Published 1d CLI & Terminal
✓ No known CVEs patched
Read the diff → Tool health → What is this tool? →

✓ No known CVEs patched in this version

Topics

amp claude-code codex gemini ghostty opencode
+2 more
cli tmux

Summary

AI summary

Fix Web Inspector reopening after manual close and navigation (issue #5172).

Changes in this release

Feature Low

Add font-size/zoom control to the markdown viewer.

Add font-size/zoom control to the markdown viewer.

Source: llm_adapter@2026-06-02

Confidence: high

 —
Feature Low

Add a configurable keyboard shortcut to open the diff viewer.

Add a configurable keyboard shortcut to open the diff viewer.

Source: llm_adapter@2026-06-02

Confidence: high

 —
Feature Low

Restore right-click sidebar-button view switcher and built-in views.

Restore right-click sidebar-button view switcher and built-in views.

Source: llm_adapter@2026-06-02

Confidence: high

 —
Feature Low

Add @LiveSetting: @State + store stream, reactive in the AppKit-hosted main window.

Add @LiveSetting: @State + store stream, reactive in the AppKit-hosted main window.

Source: granite4.1:30b@2026-06-02-audit

Confidence: low

 —
Feature Low

Honor Settings rebinding of Global Search (parse package object-form cmux.json bindings).

Honor Settings rebinding of Global Search (parse package object-form cmux.json bindings).

Source: granite4.1:30b@2026-06-02-audit

Confidence: low

 —
Feature Low

Rank visible title matches above hidden metadata in workspace switcher.

Rank visible title matches above hidden metadata in workspace switcher.

Source: granite4.1:30b@2026-06-02-audit

Confidence: low

 —
Feature Low

Gate Feed behind Beta Features (mirror Dock), default off.

Gate Feed behind Beta Features (mirror Dock), default off.

Source: granite4.1:30b@2026-06-02-audit

Confidence: low

 —
Feature Low

Report remote PTY allocation failures loudly (issue #5185).

Report remote PTY allocation failures loudly (issue #5185).

Source: granite4.1:30b@2026-06-02-audit

Confidence: low

 —
Dependency Low

Build release app with macOS 26 SDK.

Build release app with macOS 26 SDK.

Source: llm_adapter@2026-06-02

Confidence: high

 —
Performance Low

Stabilize git metadata FSEvents watcher.

Stabilize git metadata FSEvents watcher.

Source: granite4.1:30b@2026-06-02-audit

Confidence: low

 —
Bugfix Medium

Fix titlebar shortcut-hint pills clipped at bottom on macOS 26.5.

Fix titlebar shortcut-hint pills clipped at bottom on macOS 26.5.

Source: llm_adapter@2026-06-02

Confidence: high

 —
Bugfix Medium

Fix Claude fork/resume failing when session changed directories.

Fix Claude fork/resume failing when session changed directories.

Source: llm_adapter@2026-06-02

Confidence: high

 —
Bugfix Medium

Fix Web Inspector reopening after manual close + navigation.

Fix Web Inspector reopening after manual close + navigation.

Source: llm_adapter@2026-06-02

Confidence: high

 —
Bugfix Medium

Fix restored scrollback keeping original theme's colors after theme change.

Fix restored scrollback keeping original theme's colors after theme change.

Source: llm_adapter@2026-06-02

Confidence: high

 —
Bugfix Medium

Fix Starship prompt going static in bash sessions.

Fix Starship prompt going static in bash sessions.

Source: llm_adapter@2026-06-02

Confidence: high

 —
Bugfix Medium

Avoid E2BIG when cmuxd‑remote startup script exceeds MAX_ARG_STRLEN.

Avoid E2BIG when cmuxd‑remote startup script exceeds MAX_ARG_STRLEN.

Source: llm_adapter@2026-06-02

Confidence: high

 —
Bugfix Low

Fall back to default sidebar when extensions are disabled.

Fall back to default sidebar when extensions are disabled.

Source: granite4.1:30b@2026-06-02-audit

Confidence: low

 —
Bugfix Low

Set GH_TOKEN on appcast R2 upload step for releases.

Set GH_TOKEN on appcast R2 upload step for releases.

Source: granite4.1:30b@2026-06-02-audit

Confidence: low

 —
Bugfix Low

Fix bound focus‑surface broadcast re‑entrancy causing 426s hang (issue #5100).

Fix bound focus‑surface broadcast re‑entrancy causing 426s hang (issue #5100).

Source: granite4.1:30b@2026-06-02-audit

Confidence: low

 —
Bugfix Low

Improve terminal text context menu.

Improve terminal text context menu.

Source: granite4.1:30b@2026-06-02-audit

Confidence: low

 —
Refactor Low

Extract CmuxProcess command runner (modular refactor, wave 2).

Extract CmuxProcess command runner (modular refactor, wave 2).

Source: granite4.1:30b@2026-06-02-audit

Confidence: low

 —
Refactor Low

Move diff viewer into React app source.

Move diff viewer into React app source.

Source: granite4.1:30b@2026-06-02-audit

Confidence: low

 —
Other Low

Add cmux history blog post.

Add cmux history blog post.

Source: granite4.1:30b@2026-06-02-audit

Confidence: low

 —
Full changelog

What's Changed

  • Extract CmuxProcess command runner (modular refactor, wave 2) by @azooz2003-bit in https://github.com/manaflow-ai/cmux/pull/5093
  • Codify modular-refactor rules into CLAUDE.md by @azooz2003-bit in https://github.com/manaflow-ai/cmux/pull/5111
  • Add @LiveSetting: @State + store stream, reactive in the AppKit-hosted main window (all key kinds) by @azooz2003-bit in https://github.com/manaflow-ai/cmux/pull/5113
  • Fall back to the default sidebar when extensions is disabled by @azooz2003-bit in https://github.com/manaflow-ai/cmux/pull/5127
  • fix(release): set GH_TOKEN on appcast R2 upload step by @austinywang in https://github.com/manaflow-ai/cmux/pull/5139
  • fix(cmuxd-remote): avoid E2BIG when startup script exceeds MAX_ARG_STRLEN by @lauzierj in https://github.com/manaflow-ai/cmux/pull/5133
  • Stabilize git metadata FSEvents watcher by @azooz2003-bit in https://github.com/manaflow-ai/cmux/pull/5131
  • Build release app with macOS 26 SDK by @lawrencecchen in https://github.com/manaflow-ai/cmux/pull/5042
  • Honor Settings rebinding of Global Search (parse package object-form cmux.json bindings) by @austinywang in https://github.com/manaflow-ai/cmux/pull/5143
  • Fix titlebar shortcut-hint pills clipped at bottom on macOS 26.5 by @lawrencecchen in https://github.com/manaflow-ai/cmux/pull/5145
  • Rank visible title matches above hidden metadata in workspace switcher by @lawrencecchen in https://github.com/manaflow-ai/cmux/pull/5148
  • Fix Claude fork/resume failing when session changed directories by @lawrencecchen in https://github.com/manaflow-ai/cmux/pull/5154
  • Fix #5100: bound focus-surface broadcast re-entrancy (426s hang) by @austinywang in https://github.com/manaflow-ai/cmux/pull/5108
  • Add font-size/zoom control to the markdown viewer by @lawrencecchen in https://github.com/manaflow-ai/cmux/pull/5163
  • Improve terminal text context menu by @azooz2003-bit in https://github.com/manaflow-ai/cmux/pull/5135
  • Gate Feed behind Beta Features (mirror Dock), default off by @austinywang in https://github.com/manaflow-ai/cmux/pull/5174
  • Fix Web Inspector reopening after manual close + navigation (#5172) by @austinywang in https://github.com/manaflow-ai/cmux/pull/5180
  • Restore right-click sidebar-button view switcher and built-in views (#5173) by @austinywang in https://github.com/manaflow-ai/cmux/pull/5182
  • Fix restored scrollback keeping original theme's colors (white-on-white after theme change) by @austinywang in https://github.com/manaflow-ai/cmux/pull/5175
  • Move diff viewer into React app source by @lawrencecchen in https://github.com/manaflow-ai/cmux/pull/5074
  • Report remote PTY allocation failures loudly (#5185) by @austinywang in https://github.com/manaflow-ai/cmux/pull/5186
  • Fix Starship prompt going static in bash sessions (#5164) by @austinywang in https://github.com/manaflow-ai/cmux/pull/5187
  • Add a configurable keyboard shortcut to open the diff viewer by @austinywang in https://github.com/manaflow-ai/cmux/pull/5178
  • Add cmux history blog post by @lawrencecchen in https://github.com/manaflow-ai/cmux/pull/5190
  • Release v0.64.12 by @austinywang in https://github.com/manaflow-ai/cmux/pull/5204

New Contributors

  • @lauzierj made their first contribution in https://github.com/manaflow-ai/cmux/pull/5133

Full Changelog: https://github.com/manaflow-ai/cmux/compare/v0.64.11...v0.64.12

View diff on GitHub

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About cmux

Ghostty-based macOS terminal with vertical tabs and notifications for AI coding agents

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Related context

Beta — feedback welcome: [email protected]