# cmux 0.63.1 · Changelog

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


March 28, 2026

Fixed

-   Fix crash on startup after upgrading from older versions due to stale window geometry data ([#2306](https://github.com/manaflow-ai/cmux/pull/2306))
-   Fix re-entrant `displayIfNeeded` crash during layout follow-up from SwiftUI geometry changes ([#2305](https://github.com/manaflow-ai/cmux/pull/2305)) — thanks @KyleJamesWalker!
-   Fix macOS compatibility with versioned geometry persistence to prevent future upgrade crashes ([#2308](https://github.com/manaflow-ai/cmux/pull/2308))

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) [![KyleJamesWalker](https://cmux.com/_next/image?url=https%3A%2F%2Fgithub.com%2FKyleJamesWalker.png%3Fsize%3D48&w=48&q=75)KyleJamesWalker](https://github.com/KyleJamesWalker)

[ cmux 0.63.0](https://cmux.com/docs/changelog/0.63.0) [cmux 0.63.2 ](https://cmux.com/docs/changelog/0.63.2)

Canonical: https://cmux.com/docs/changelog/0.63.1

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