All the MacOS 10.15 Catalina Announcements from Apple's WWDC 2019 Keynote
by Brendan Hesse from Lifehacker on (#4GE8D)

Apple WWDC closed with a detailed overview of the upcoming macOS update, now officially titled "Catalina." Let's go over all the new features announced at WWDC that will be part of macOS 10.15 Catalina when it releases in fall, 2019.