Apple Releases macOS Catalina 10.15.5 Supplemental Update With Security Fix
Apple today released a supplemental update for macOS Catalina 10.15.5, the fifth update to the macOS Catalina operating system that was released in October 2019. The supplemental update comes a week after the release of the macOS Catalina 10.15.5 update.
macOS Catalina 10.15.5 is a free update that can be downloaded from the Mac App Store using the Update feature in the System Preferences app. There's also a security update for those running macOS High Sierra.
The first macOS Catalina 10.15.5 update introduced a new Battery Health Management feature designed to extend the overall lifespan of a Mac's battery by reducing the rate of chemical aging. It also included controls to fine-tune the calibration of the Pro Display XDR and an option to control Automatic Prominence in a Group FaceTime call.
The supplemental update focuses on security fixes and Apple says it should be installed by all users.
macOS Catalina 10.15.5 supplemental update provides important security updates and is recommended for all users.
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: https://support.apple.com/en-us/HT211215
According to the security notes for the update, it addresses a security flaw that could allow an application to execute arbitrary code with kernel privileges.
This is the same vulnerability that has been addressed in today's iOS 13.5.1, tvOS 13.4.6, and watchOS 6.2.6 updates, and it allowed for the unc0ver jailbreak that allegedly works on all versions of iOS, including iOS 13.5.
Popular Stories
Apple will launch its new iPhone 17 series in two months, and the iPhone 17 Pro models are expected to get a new design for the rear casing and the camera area. But more significant changes to the lineup are not expected until next year, when the iPhone 18 models arrive.
If you're thinking of trading in your iPhone for this year's latest, consider the following features rumored to be coming...
A new Apple TV is expected to be released later this year, and a handful of new features and changes have been rumored for the device.
Below, we recap what to expect from the next Apple TV, according to rumors.
Rumors
Faster Wi-Fi Support
The next Apple TV will be equipped with Apple's own combined Wi-Fi and Bluetooth chip, according to Bloomberg's Mark Gurman. He said the chip supports ...
Apple's next-generation iPhone 17 Pro and iPhone 17 Pro Max are only two months away, and there are plenty of rumors about the devices.
Below, we recap key changes rumored for the iPhone 17 Pro models.
Latest Rumors
These rumors surfaced in June and July:A redesigned Dynamic Island: It has been rumored that all iPhone 17 models will have a redesigned Dynamic Island interface — it might ...
Apple does not plan to refresh any Macs with updated M5 chips in 2025, according to Bloomberg's Mark Gurman. Updated MacBook Air and MacBook Pro models are now planned for the first half of 2026.
Gurman previously said that Apple would debut the M5 MacBook Pro models in late 2025, but his newest report suggests that Apple is "considering" pushing them back to 2026. Apple is now said to be...
iPhone 17 Pro and iPhone 17 Pro Max models with displays made by BOE will be sold exclusively in China, according to a new report.
Last week, it emerged that Chinese display manufacturer BOE was aggressively ramping up its OLED production capacity for future iPhone models as part of a plan to recapture a major role in Apple's supply chain.
Now, tech news aggregator Jukan Choi reports...
The long wait for an Apple Watch Ultra 3 is nearly over, and a handful of new features and changes have been rumored for the device.
Below, we recap what to expect from the Apple Watch Ultra 3:Satellite connectivity for sending and receiving text messages when Wi-Fi and cellular coverage is unavailable
5G support, up from LTE on the Apple Watch Ultra 2
Likely a wide-angle OLED display that ...
In select U.S. states, residents can add their driver's license or state ID to the Wallet app on the iPhone and Apple Watch, providing a convenient and contactless way to display proof of identity or age at select airports and businesses, and in select apps.
Unfortunately, this feature continues to roll out very slowly since it was announced in 2021, with only nine U.S. states, Puerto Rico,...
The iPhone 17 and iPhone 17 Air will be available in a total of nine color options, according to new information coming out of Asia.
The iPhone 17 Air's expected color options.
According to the leaker going by the account name "yeux1122" on the Korean blog Naver, accessory manufacturers are now producing camera protector rings for the iPhone 17 and iPhone 17 Air in colors to match their...
