You'll need to find replacements for your 32-bit games or apps, because Catalina won't run 32-bit software at all. It's worth reiterating that Catalina takes away compatibility with older games and apps that exist only in 32-bit versions-including classics like Apple's own Aperture photo editor. On the other hand, security has been massively increased in Catalina. All support for old 32-bit software is gone, adding efficiency and speed to the OS but causing potential problems for anyone still using older software. It replaces the classic iTunes app-with its overloaded and confusing interface-with elegant new apps for music, podcasts, and TV.Īs always, you'll find major and minor tweaks throughout, but the most momentous changes are behind the scenes. Catalina also adds iOS-style features like Screen Time with enhanced parental controls. Highlights include the Sidecar feature that lets you use any recent iPad as a second screen. Catalina runs smoothly and reliably and adds several appealing new features. Catalina is the 15th release of what Apple used to call OS X, and like earlier versions, it builds on a solid and secure Unix-based foundation. The release of macOS Catalina, now available as a free download for everyone with a compatible Apple computer, adds efficiency, security, elegance, and smoothly integrated enhancements to the already-excellent Mojave version released last year.
Ends 32-bit app support, forcing such apps to run in complex workarounds.
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