https://wccftech.com/apple-releases-macos-catalina-10-15-1-beta-3-to-developers/

Apple has released macOS Catalina 10.15.1 beta 3 to developers. The new beta has build number 19B86 and contains minor bug fixes and performance improvements. The update is available via Apple Developer Center as well as over-the-air for existing beta users.

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