MacOS Catalina (version 10.15) is the sixteenth significant arrival of macOS, Apple’s work area working framework for Macintosh PCs. Catalina is the main version of macOS to only help 64-bit applications. It will be discharged as a free update in fall 2019.
MacOS Catalina will run on these Macintosh computers:
Catalyst is a new platform allowing software to target both macOS and iPadOS. Apple demonstrated several ported apps, including Jira and Twitter.
List of some of the new features and apps:-