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.

catalina island

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.

Related Forum: macOS Catalina

Popular Stories

iPhone 17 Pro 34ths Perspective

iPhone 17 Pro Launching Later This Year With These 10 New Features

Sunday March 23, 2025 10:00 am PDT by
While the iPhone 17 Pro and iPhone 17 Pro Max are not expected to launch until September, there are already plenty of rumors about the devices. Below, we recap key changes rumored for the iPhone 17 Pro models as of March 2025: Aluminum frame: iPhone 17 Pro models are rumored to have an aluminum frame, whereas the iPhone 15 Pro and iPhone 16 Pro models have a titanium frame, and the iPhone ...
Generic iOS 18

iOS 18.4 Coming Soon With These New Features for Your iPhone

Tuesday March 25, 2025 6:45 am PDT by
Apple is expected to release iOS 18.4 to the general public as soon as next week, following more than a month of beta testing. Apple's website says some iOS 18.4 features will be released in "early April," so the update should be out as early as Tuesday, April 1. Apple this week seeded the iOS 18.4 Release Candidate, which is typically the final beta version, barring the discovery of any...
ios 19 messages app

Here's What Apple's iOS 19 Messages App Might Look Like

Tuesday March 25, 2025 11:52 am PDT by
Leaker Jon Prosser today shared a mockup of what he says the Messages app will look like in iOS 19, demoing an interface with rounded, translucent bubble-shaped navigation buttons at the top and softer, rounder corners for the keyboard and word suggestions. Jon Prosser's Messages app mockup The return button, a button for going back to the Messages list, and the FaceTime button have a deeper...
iCloud General Feature Redux

iPhone Users Who Pay for iCloud Storage Receive a New Perk

Thursday March 20, 2025 12:01 am PDT by
If you pay for iCloud storage on your iPhone, Apple has a new perk for you, at no additional cost. The new perk is the ability to create invitations in the Apple Invites app for the iPhone, which launched in the App Store last month. In the Apple Invites app, iCloud+ subscribers can create invitations for any occasion, such as birthday parties, graduations, baby showers, and more. Anyone ...
airpods max 2024 colors

Don't Buy Into Apple's Hype About AirPods Max Gaining Lossless Audio

Monday March 24, 2025 4:24 pm PDT by
Apple today announced that AirPods Max with a USB-C port will be gaining support for lossless audio and ultra-low latency audio with a firmware update next month, alongside the release of iOS 18.4, iPadOS 18.4, and macOS 15.4. For context, audio files are typically compressed to keep file sizes smaller. There are lossy compression standards like MP3 and AAC (Advanced Audio Codec), which...
Generic iOS 19 Feature Mock

Gurman: Jon Prosser's iOS 19 Mockups 'Aren't Representative' of Redesign

Tuesday March 25, 2025 4:47 pm PDT by
The iOS 19 mockup images that leaker Jon Prosser shared today are not representative of the actual iOS 19 design, Bloomberg's Mark Gurman said on social media. According to Gurman, the images that are "floating around" are based on "very old builds" or "vague descriptions," and are lacking key features. Gurman says that we can "expect more from Apple in June." Gurman made the same comment ...
Apple Lumon Terminal Pro

Apple's Mac Site Features Fictional 'Lumon Terminal Pro'

Wednesday March 26, 2025 12:19 pm PDT by
Apple is going all out with promotions for the popular Severance Apple TV+ show today, and as of right now, you'll find a new "Lumon Terminal Pro" listed on Apple's Mac site. The Lumon Terminal Pro is designed to look similar to the machines that Severance employees like Mark S. and Helly R. use for macrodata refinement. The Terminal features a blue keyboard, a small display with wide...
Generic iOS 19 Feature Mock Light

iOS 19 Again Rumored to Feature visionOS-Like 'Glassy' Design

Tuesday March 25, 2025 3:25 pm PDT by
Leaker Jon Prosser today shared a "first look" at Apple's upcoming iOS 19 update, providing mockups of what different apps and features will supposedly look like. Prosser claims the mockups are based on "the real deal" version of iOS 19 that he has seen, but says he is sharing replica images in order to prevent his sources from getting into trouble. Confusingly, Prosser's video features some ...

Top Rated Comments

Blackstick Avatar
71 months ago
Not touching this beast until at least 10.15.2
Score: 37 Votes (Like | Disagree)
bernaferrar Avatar
71 months ago
985.4MB update to fix icloud and installation issues. I've been using Catalina and really regret, Mojave was way more stable. Sidecar doesn't work (timeout!), iCloud is buggier than ever and now my computer even awakes randomly (powernap is off!). Worst update in years.
Score: 30 Votes (Like | Disagree)
decypher44 Avatar
71 months ago
Yeah, I’m still going to wait until early next year to update to Catalina.
Score: 26 Votes (Like | Disagree)
masterleep Avatar
71 months ago
Wish they would call it macOS 13.0.1 and dispense with unversioned "supplemental updates".
Score: 21 Votes (Like | Disagree)
Expos of 1969 Avatar
71 months ago
No thank you Apple...
Score: 19 Votes (Like | Disagree)
StellarVixen Avatar
71 months ago

I recommend Catalina. Seriously. You gotta do your own research though if you still need to use 32-bit apps or if you're a DJ and need to adapt something or something about your workflow with the iTunes library (? I'm not a DJ), other than that I'm finding that the posts here make the problems seem blown way out of proportion. If you read closely there is little substance, a lot of knee jerk reactions to unsubstantiated claims. If you do upgrade, my prediction is one day you'll install 10.15.1 that will fix bugs you never knew existed in 10.15.0. I see the same whining every release, whether it's macOS or iOS. Sure there are bugs. Sure there seems to be more whining this time. It's a new feature release. New feature releases tend to have more visible bugs than 'under the hood' performance/stability releases. Sure some people will be affected. But 99% of people will never actually experience a bug that has any affect on getting work done. I stand by that statistic even though I pulled it out of my ear. Unless you don't care about the new features and are satisfied with Mojave (and still don't feel confident about Catalina), I'd say do the research, then go for it.
seriously, just get real for a moment, Mojave didn’t have near this much complaints after launch.


Apple OFFICIALLY recommends Mac Mini users TO NOT upgrade to Catalina yet. When was the last time Apple said “please, it’s best to avoid our newest OS until we fix it”?

It is awesome that you don’t have any issues, but just because you do not have any issues, do not accuse many people out there that they are lying or over exaggerating things.
Score: 12 Votes (Like | Disagree)