Tue. Jun 2nd, 2020

macOS Catalina officially released: What’s new?

2 min read

Apple today released the official version of macOS Catalina, which users can upgrade for free through the Mac App Store. In macOS Catalina, Apple will replace iTunes with three popular entertainment apps, Apple Music, Apple Podcast and Apple TV app. The new Sidecar feature allows users to expand their desktop space by using the iPad as their second display or as a high-precision input device in many Mac creative apps.

The new macOS 10.15 is called Catalina. It is a small island for a vacation in California. There are still a lot of changes in the new macOS 10.15. Here are the younger ones to take a look at the new features and changes.

Sidecar function

Extended desktop

Use your iPad as a second display for additional screen space. Refer to one app while you work in another, or see how a presentation looks in presentation mode on your iPad while editing it on your Mac.View the Sidecar White Paper (PDF)

Mirrored desktop

Mirror the screen on your Mac to have two screens displaying the same content, making it perfect for sharing with others.

Wired or wireless

Connect your iPad to your Mac using a cable to keep it charged, or use it wirelessly — within 10 meters — for greater mobility.

Apple Pencil

Use the precision and intuitiveness of Apple Pencil with your favorite creative Mac apps that support drawing tablets. Draw and write naturally, edit a photo or graphic, and use it to point and click as you do with a mouse.


Use the same Multi-Touch gestures you’re familiar with on iPad, along with all-new text editing gestures that let you cut, copy, paste, and undo without lifting your hands from the onscreen keyboard.


Get easy access to your most commonly used controls from the sidebar. Use modifier keys to enable shortcuts in pro apps, and access buttons that allow you to undo as well as display or hide the menu bar, Dock, and keyboard.

Touch Bar

For apps with Touch Bar support, the controls appear at the bottom of your iPad screen — even if your Mac doesn’t have a Touch Bar.

Developer support

Developers don’t need to do anything for Sidecar support — it just works. Apps with advanced stylus support can use Tablet Events in AppKit to enable pressure and tilt for Apple Pencil. Additionally, developers can specify custom behavior for double-tap on the side of Apple Pencil through a changeMode event.

iTunes is too bloated, it is also the most difficult software to use on the mac. The other features of iTunes are divided into four apps, just like the ones on the iOS device, namely music, podcasts, TV TVs and books.
You can read the full changelog on macOS Catalina here.