Wired
Apple has released a supplemental update for MacOS Catalina 10.15.4 for Mac users running macOS Catalina.
The new supplemental update includes some bug fixes, including the resolution of FaceTime calls, which was also fixed in the iOS 13.4.1 and iPadOS 13.4.1 updates. Below are the full release notes that accompany the MacOS Catalina 10.15.4 supplemental update.
How to install MacOS Catalina 10.15.4 Supplemental Update
All macOS updates can be downloaded from the software update. Before installing any system software updates, please back up your Mac.
Enter the menu and select System Preferences.
Select Software Update, and then choose to download and install MacOS Catalina 10.15.4 Supplemental Update.
The Mac needs to be restarted to complete the installation, and it will complete automatically.
In addition, Mac users can also choose to download the supplemental update package installation package installer from Apple.
macOS Catalina 10.15.4 Supplemental Update Release Notes
“macOS Catalina 10.15.4 supplemental update improves the stability and security of Mac.
• Fixed an issue where Mac computers running macOS Catalina 10.15.4 cannot join FaceTime calls on devices running iOS 9.3.6 and earlier or OS X El Capitan 10.11.6 and earlier
Resolved an issue that may prompt you to repeatedly enter the password for your Office 365 account
• Fixed an issue where the MacBook Air (retina display, 13-inch, launched in 2020) might freeze when using the Setup Assistant or disconnecting and reconnecting a 4K or 5K external display
• Solved the problem that the USB-C port of Mac may not respond
It is unclear whether the macOS 10.15.4 supplemental update solves some Mac users’ kernel panic, random restart, system crash and other issues after macOS 10.15.4 update, which is not mentioned in the release notes.
In addition, Apple also released watchOS 6.2.1, iPhone’s iOS 13.4.1 and iPad’s iPadOS 13.4.1, each version has the same FaceTime bug fixes, and resolved several other minor bugs.
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