Apple released a supplemental update for MacOS 10.15 Catalina on Tuesday measuring 985.4MB. The company recommends that all Catalina users install this update, as it brings fixes and improved reliability. Mac owners must restart their device to complete the update.

Here are the release notes:

“macOS Catalina Supplemental Update

The macOS Catalina Supplemental Update includes installation and reliability improvements and is recommended for all users.

This update:

For detailed information about the security content of this update, please visit: https://support.apple.com/kb/HT201222

MacOS 10.15 Catalina arrived in early October bringing new apps for music, Apple TV, and podcasts to Mac owners.”

Catalina also includes a new “Sidecar” feature that extends or mirrors the desktop to an iPad running iOS 13 serving as a secondary display. This apparently only works “officially” on specific Macs, like the 2018 MacBook Air and the 2019 Mac Pro, though users can enter a lengthy Terminal command to enable Sidecar on older Macs:

defaults write com.apple.sidecar.display AllowAllDevices -bool true; defaults write com.apple.sidecar.display hasShownPref -bool true; open /System/Library/PreferencePanes/Sidecar.prefPane

Other new features spied in Catalina include weak password warnings in Safari, a “block sender” tool in the Mail app, an updated Reminders app, larger photo previews, colored tints covering your entire screen, a new Apple ID location in System Preferences, and more.

The removal of iTunes may be a big surprise for Mac owners after the update. Rather than cram your entire media library into a single place, you can now access albums in the Music app and your TV shows and movies on the Apple TV app. Users can still purchase media through these apps, or enable the iTunes Store interface by clicking the app’s name in the menu bar followed by Preferences.

A previous report suggests that Mac owners may want to hold off on the Catalina upgrade. Many users now report of missing or incomplete messages after its installation. Others claim moving emails between mailboxes results in blank messages.

Related Posts

New study shows AI isn’t ready for office work

A reality check for the "replacement" theory

Google Research suggests AI models like DeepSeek exhibit collective intelligence patterns

The paper, published on arXiv with the evocative title Reasoning Models Generate Societies of Thought, posits that these models don't merely compute; they implicitly simulate a "multi-agent" interaction. Imagine a boardroom full of experts tossing ideas around, challenging each other's assumptions, and looking at a problem from different angles before finally agreeing on the best answer. That is essentially what is happening inside the code. The researchers found that these models exhibit "perspective diversity," meaning they generate conflicting viewpoints and work to resolve them internally, much like a team of colleagues debating a strategy to find the best path forward.

Microsoft tells you to uninstall the latest Windows 11 update

https://twitter.com/hapico0109/status/2013480169840001437?s=20