macOS Catalina 10.15.4 Supplemental Update Released With FaceTime Fix


Apple has just released macOS Catalina 10.15.4 Supplemental Update with fix for FaceTime bug along with amongst other things.

Download macOS Catalina 10.15.4 Supplemental Update Today With a Barrage of Fixes

Having already released iOS 13.4.1 / iPadOS 13.4.1 and watchOS 6.2.1, Apple has now seeded the macOS Catalina 10.15.4 Supplemental Update to users to fix the unsurprising FaceTime bug.

Latest macOS Catalina 10.15.7 Supplemental Update Patches Key Security Vulnerabilities

macOS Catalina 10.15.4 Supplemental Update –– Restart Required

macOS Catalina 10.15.4 supplemental update improves the stability and security of your Mac.

• Fixes an issue where Mac computers running macOS Catalina 10.15.4 could not participate in FaceTime calls with devices running iOS 9.3.6 and earlier or OS X El Capitan 10.11.6 and earlier
• Resolves an issue where you may repeatedly receive a password prompt for an Office 365 account
• Fixes an issue where MacBook Air (Retina, 13-inch, 2020) may hang in Setup Assistant or when disconnecting and reconnecting a 4K or 5K external display
• Resolves an issue where a USB-C port in your Mac may become unresponsive

Some features may not be available for all regions, or on all Apple devices. For detailed information about the security content of this update, please visit:

In order to download the latest update, simply launch System Preferences, click on Software Update and download the available update from there. This may take a while if you have a slower internet connection so be patient.

macOS Catalina has been a buggy update for a lot of users out there and hopefully this bug fix release will add a bit of comfort to the lives of those who make do with the Mac on a regular basis.

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