Apple has promised to ship macOS Catalina in October (the public beta is available available now), and the expectations from the Apple rumor machine is that the new Mac operating system will ship sooner rather than later.Here are a few of the improvements it offers that you may want to try out and use once it officially arrives.What Apple told us about CatalinaIntroduced at WWDC 2019, macOS Catalina is the latest iteration of Apple operating system, with flagship features including: