Apple Releases macOS Catalina Supplemental Update With Fixes for Installation, iCloud Login, and Game Center Bugs
Alongside iOS 13.1.3, Apple today also released a supplemental update for macOS Catalina, addressing several bugs from the initial public release version, including a problem with Setup Assistant hanging during Catalina installation.

The macOS Catalina Supplemental Update includes installation and reliability improvements, and is recommended for all users.
This update:
- Improves installation reliability of macOS Catalina on Macs with low disk space
- Fixes an issue that prevented Setup Assistant from completing during some installations
- Resolves an issue that prevents accepting iCloud Terms and Conditions when multiple iCloud accounts are logged in
- Improves the reliability of saving Game Center data when playing Apple Arcade games offline
Today's supplemental update comes ahead of macOS 10.15.1, which was seeded as an initial developer beta last Friday.
Popular Stories
Apple today announced it will be permanently closing three retail stores in the U.S. in June, including Apple Trumbull in Trumbull, Connecticut, Apple North County in Escondido, California, and Apple Towson Town Center in Towson, Maryland.
Apple Towson Town Center in Maryland
Apple issued the following statement to MacRumors:At Apple, we are constantly striving to deliver exceptional service...
Apple has released a minor iOS 26.4.1 update for the iPhone 11 and newer. While the release notes for the update only mention unspecified "bug fixes," we have since learned about two specific changes that are included in it.
First, 9to5Mac spotted an Apple Developer Forums thread suggesting that iOS 26.4.1 fixes an iOS 26.4 bug that affected iCloud syncing in some apps.
Second, an...
Last year, Apple launched CarPlay Ultra, the long-awaited next-generation version of its CarPlay software system for vehicles. Nearly a year later, CarPlay Ultra is still limited to Aston Martin's latest luxury vehicles, but that should change fairly soon.
In May 2025, Apple said many other vehicle brands planned to offer CarPlay Ultra, including Hyundai, Kia, and Genesis.
CarPlay Ultra...
Popular Stories
Apple today announced it will be permanently closing three retail stores in the U.S. in June, including Apple Trumbull in Trumbull, Connecticut, Apple North County in Escondido, California, and Apple Towson Town Center in Towson, Maryland.
Apple Towson Town Center in Maryland
Apple issued the following statement to MacRumors:At Apple, we are constantly striving to deliver exceptional service...
Apple has released a minor iOS 26.4.1 update for the iPhone 11 and newer. While the release notes for the update only mention unspecified "bug fixes," we have since learned about two specific changes that are included in it.
First, 9to5Mac spotted an Apple Developer Forums thread suggesting that iOS 26.4.1 fixes an iOS 26.4 bug that affected iCloud syncing in some apps.
Second, an...
Last year, Apple launched CarPlay Ultra, the long-awaited next-generation version of its CarPlay software system for vehicles. Nearly a year later, CarPlay Ultra is still limited to Aston Martin's latest luxury vehicles, but that should change fairly soon.
In May 2025, Apple said many other vehicle brands planned to offer CarPlay Ultra, including Hyundai, Kia, and Genesis.
CarPlay Ultra...