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v0.27.0 Feature

This release adds 4 notable features for engineering teams evaluating rollout.

✓ No known CVEs patched
Read the diff → Tool health → What is this tool? →

✓ No known CVEs patched in this version

Topics

agent ide

Summary

AI summary

Adds first-class support for Claude Fable and Mythos models.

Full changelog

This release brings first-class support for the Claude Fable and Mythos models.

Additional improvements include:

  • Improved Immersive Review performance
  • /spawn built-in skill for indicating intent to run task in a sub-agent
  • backslash symbols like \Pi for writing Π into the input box
  • More ergonomic thinking effort keybinds: decrease with Ctrl+Shift+[ and increase with Ctrl+Shift+]

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About mux

A desktop app for isolated, parallel agentic development

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Beta — feedback welcome: [email protected]