github coder/mux v0.10.0
v0.10.0 🎄

latest releases: v0.20.2-nightly.26, v0.20.1, v0.20.0...
3 months ago

This release includes a wide range of features and bug fixes spanning the entire product.

✨ Highlights

We now have fledgling support for sub-agents. When you enter Plan Mode, the user-facing agent may spin up any number of sub-agents for exploration and research tasks.

Workspaces are now Archived instead of deleted by default. Users can easily revive archived workspaces with all of their state intact:

Screenshot 2025-12-26 at 7 35 34 PM

Archived workspaces continue to consume the same storage as live workspaces, but no longer clutter the UI or run background processes. This also makes it easier to track longer-term costs.


We shipped several improvements to the Code Review experience:

Screenshot 2025-12-26 at 7 39 58 PM
  • The review panel now refreshes automatically — edits stream in real time
    • Edits are sorted by first-seen timestamp, so the most relevant hunks appear at the top
  • You can load more of a file to see surrounding context
  • Review controls are significantly more compact

You can now more easily see context usage in the chat input area:

image

This replaces the infamous vertical usage bar that resembled a scrollbar.

🫡 Honorable Mentions

  • Many improvements to compaction, including better preservation of plan context, recent edits, and TODO lists
  • Support for agent skills (docs)

🛠️ Fixes

  • Significant performance improvements across the app
  • Reduced layout flashing and smoother transitions
  • Improved compaction robustness, with better behavior around interruptions and edits

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