cmux v0.64.12 Release Notes — What's New

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