macOS Catalina

In plain words

macOS Catalina is an operating system for Mac that introduces three new apps dedicated to music, TV, and podcasts. It enables users to run iPad applications directly on Mac computers and allows workspace extension through iPad and Apple Pencil integration. The system is designed to enhance the Mac experience by consolidating entertainment features and expanding cross-device functionality.

written from the facts on this page · September 2026

From the sources

macOS Catalina gives you more of everything you love about Mac. Experience music, TV, and podcasts in three all-new Mac apps. Enjoy your favorite iPad apps now on your Mac. Extend your workspace and expand your creativity with iPad and Apple Pencil.

macOS 27 Golden Gate with all-new Siri AI powered by Apple Intelligence and new features for a more responsive, delightful experience.

New Siri AI. An even more capable AI assistant with expanded intelligence to be more helpful every day. 1 Type or talk naturally with Siri AI to find what you need and get more done. Next-generation Apple Intelligence enhances the apps you use most — like Photos, Messages, and Safari. 1 Visual Intelligence on Mac lets you learn more and take action about virtually anything onscreen. 2 More refined design with enhanced Liquid Glass, ensuring exceptional readability and greater consistency across apps. An expansive set of improvements across key areas that makes your Mac even more responsive and delightful. Siri AI is powered by Apple Intelligence and more helpful than ever. 1 Get more done…from apple.com

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