Apple Releases macOS Catalina 10.15.7 Supplemental Update With Security Fixes

Apple today released a supplemental update for macOS Catalina 10.15.7, introducing security fixes. The macOS 10.15.7 Supplemental Update comes more than a month after the release of macOS Catalina 10.15.7.

Catalina10
The ‌‌‌‌macOS Catalina‌‌‌‌ 10.15.7 Supplemental Update can be downloaded from the Mac App Store using the Update feature in the System Preferences app.

According to Apple's release notes, the Supplemental Update improves the security of macOS and is recommended for all users. An Apple support document outlines several vulnerabilities that that have been addressed, including those that leave the Mac vulnerable to malicious fonts and applications.

macOS Catalina will soon be replaced by macOS Big Sur, which is in the final stages of beta testing and could be released as soon as next week.

Related Forum: macOS Catalina

Popular Stories

iPhone SE 4 Vertical Camera Feature

iPhone SE 4 Rumored to Use Same Rear Chassis as iPhone 16

Friday July 19, 2024 7:16 am PDT by
Apple will adopt the same rear chassis manufacturing process for the iPhone SE 4 that it is using for the upcoming standard iPhone 16, claims a new rumor coming out of China. According to the Weibo-based leaker "Fixed Focus Digital," the backplate manufacturing process for the iPhone SE 4 is "exactly the same" as the standard model in Apple's upcoming iPhone 16 lineup, which is expected to...
iPhone 16 Pro Sizes Feature

iPhone 16 Series Is Just Two Months Away: Everything We Know

Monday July 15, 2024 4:44 am PDT by
Apple typically releases its new iPhone series around mid-September, which means we are about two months out from the launch of the iPhone 16. Like the iPhone 15 series, this year's lineup is expected to stick with four models – iPhone 16, iPhone 16 Plus, iPhone 16 Pro, and iPhone 16 Pro Max – although there are plenty of design differences and new features to take into account. To bring ...
bsod

Crowdstrike Says Global IT Outage Impacting Windows PCs, But Mac and Linux Hosts Not Affected

Friday July 19, 2024 3:12 am PDT by
A widespread system failure is currently affecting numerous Windows devices globally, causing critical boot failures across various industries, including banks, rail networks, airlines, retailers, broadcasters, healthcare, and many more sectors. The issue, manifesting as a Blue Screen of Death (BSOD), is preventing computers from starting up properly and forcing them into continuous recovery...
iphone 14 lineup

Cellebrite Unable to Unlock iPhones on iOS 17.4 or Later, Leak Reveals

Thursday July 18, 2024 4:18 am PDT by
Israel-based mobile forensics company Cellebrite is unable to unlock iPhones running iOS 17.4 or later, according to leaked documents verified by 404 Media. The documents provide a rare glimpse into the capabilities of the company's mobile forensics tools and highlight the ongoing security improvements in Apple's latest devices. The leaked "Cellebrite iOS Support Matrix" obtained by 404 Media...
Apple Watch Series 9

2024 Apple Watch Lineup: Key Changes We're Expecting

Tuesday July 16, 2024 7:59 am PDT by
Apple is seemingly planning a rework of the Apple Watch lineup for 2024, according to a range of reports from over the past year. Here's everything we know so far. Apple is expected to continue to offer three different Apple Watch models in five casing sizes, but the various display sizes will allegedly grow by up to 12% and the casings will get taller. Based on all of the latest rumors,...
tinypod apple watch

TinyPod Turns Your Apple Watch Into an iPod

Wednesday July 17, 2024 3:18 pm PDT by
If you have an old Apple Watch and you're not sure what to do with it, a new product called TinyPod might be the answer. Priced at $79, the TinyPod is a silicone case with a built-in scroll wheel that houses the Apple Watch chassis. When an Apple Watch is placed inside the TinyPod, the click wheel on the case is able to be used to scroll through the Apple Watch interface. The feature works...

Top Rated Comments

TVreporter Avatar
48 months ago
What if you're still on Mojave because it runs so smoothly and the endless stories of the dumpster fire that's Catalina are a deterrent not to update?
Score: 25 Votes (Like | Disagree)
dspdoc Avatar
48 months ago
I think a lot of people are simply hating on Catalina out of habit now. It’s sad.
Score: 20 Votes (Like | Disagree)
ghanwani Avatar
48 months ago
Why don't they have a minor version number instead of calling it a supplemental update?

I just updated and there is no way to tell whether or not the update actually happened.

Edit: @Unsupported showed me ('https://forums.macrumors.com/threads/apple-releases-macos-catalina-10-15-7-supplemental-update-with-security-fixes.2265661/post-29169450') how to find it. That can also be found under
About This Mac -> System Report -> Software
But having a minor version number would be so much easier.

Attachment Image
Score: 20 Votes (Like | Disagree)
jonnysods Avatar
48 months ago

What if you're still on Mojave because it runs so smoothly and the endless stories of the dumpster fire that's Catalina are a deterrent not to update?
Catalina is a lot better than it used to be. Mojave will always be my fav since Snow Leopard though.
Score: 17 Votes (Like | Disagree)
luvbug Avatar
48 months ago

Mojave has anther year of security updates yet, no need to migrate to either of the disasters that are Apple's last two OS releases.
So, you pronounce Big Sur a disaster, even though it hasn't been released yet? Another very objective post on MR /s
Score: 15 Votes (Like | Disagree)
posguy99 Avatar
48 months ago

What if you're still on Mojave because it runs so smoothly and the endless stories of the dumpster fire that's Catalina are a deterrent not to update?
Mojave has anther year of security updates yet, no need to migrate to either of the disasters that are Apple's last two OS releases.
Score: 12 Votes (Like | Disagree)