On June 3, 2019 at its Worldwide Developer Conference (WWDC), Apple provided a much anticipated first glimpse into the next iteration of its desktop operating system: macOS Catalina.

Adopting the now familiar schedule of yearly releases across all its operating system lines, with macOS Catalina Apple further blurs the line between the traditional desktop environment and what is found in the mobile space by marrying stability and performance with lightweight efficiency, a familiar experience to those who use both Mac computers and iPad or iPhone devices regularly. Catalina also brings much deeper integration than has ever been seen before.

This macOS Catalina cheat sheet covers its features, applications, and security updates that further enhance performance while maintaining the desktop experience users know and like. This guide will be updated regularly to reflect the latest information about this Apple OS.

From the cheat sheet:

WHAT IS macOS CATALINA?

macOS Catalina is the 16th major release of macOS, Apple’s desktop operating system for its computer lineup of devices. Officially deemed version 10.15, Apple continues to derive its core OS from Unix while adding many new features to augment the existing framework of services that users have come to know and love. This time out Apple has further experimented with the macOS DNA to inject iPad functionality, as well as extending the working environment for users of both device types.