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MacOS Catalina exclusively supports 64-bit applications. The Voice Memos application, first ported from iOS to the Mac in macOS 10.14 Mojave as version 2.0, was incremented to version 2.1. The application version was incremented from 4.6 (in macOS 10.14 Mojave) to 4.7.Īmong other visual and functional overhauls, attachments can be added to reminders and Siri can intelligently estimate when to remind the user about an event. The Notes application was enhanced to allow better management of checklists and the ability to share folders with other users. Find My įind My Mac and Find My Friends are merged into an application called Find My. The TV app on Mac supports Dolby Atmos, Dolby Vision, and HDR10 on MacBooks released in 2018 or later, while 4K HDR playback is supported on Macs released in 2018 or later when connected to a compatible display. iOS device management is now conducted via Finder. ITunes is replaced by separate Music, Podcasts, TV and Books apps, in line with iOS. Īpple declined to document these changes, but some of them have been noted. For example, the manner in which backup data is stored on network-attached devices was changed, and this change is not backwards-compatible with earlier versions of macOS.

Time Machine Ī number of under-the-hood changes were made to Time Machine, the backup software. The Game Controller framework adds support for two major console game controllers: the PlayStation 4's DualShock 4 and the Xbox One controller. Sidecar requires a Mac with Intel Skylake CPUs and newer (such as the fourth-generation MacBook Pro), and an iPad that supports Apple Pencil.

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With Apple Pencil, the device can also be used as a graphics tablet for software running on the computer. Sidecar allows a Mac to use an iPad (running iPadOS) as a wireless external display. On-device machine processing is used to offer better navigation. Users can give detailed voice commands to applications. The system runs on its own read-only volume, separate from all other data on the Mac.

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Activation Lock Īctivation Lock helps prevent the unauthorized use and drive erasure of devices with an Apple T2 security chip (2018, 2019, and 2020 MacBook Pro 2020 5K iMac 2018, 2019, and 2020 MacBook Air, iMac Pro 2018 Mac Mini 2019 Mac Pro). Mac apps, installer packages, and kernel extensions that are signed with a Developer ID must be notarized by Apple to run on macOS Catalina.

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It is designed for building device drivers in userspace, outside of the kernel. DriverKit is a new SDK with all-new frameworks based on IOKit, but updated and modernized.

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DriverKit Ī replacement for IOKit device drivers, driver extensions are built using DriverKit. Catalina will be the last version of macOS to support legacy system extensions. System extensions run in userspace, outside of the kernel. There are 3 kinds of System extensions: Network Extensions, Endpoint Security Extensions, and Driver Extensions. System extensions avoid the problems of Kexts. Apple demonstrated several ported apps, including Jira and Twitter (after the latter discontinued its macOS app in February 2018). Changes System Catalyst Ĭatalyst is a new software-development tool that allows developers to write apps that can run on macOS, iOS and iPadOS.

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This requires using a patch to modify the install image. It is possible to install Catalina on many older Macintosh computers that are not officially supported by Apple. Catalina requires 4 GB of memory, an increase over the 2 GB required by Lion through Mojave. 2010–2012 Mac Pros, which could run Mojave only with a GPU upgrade, are no longer supported. MacOS Catalina officially runs on all standard configuration Macs that supported Mojave. The operating system is named after Santa Catalina Island, which is located off the coast of southern California.

In order to increase web compatibility, Safari, Chromium and Firefox have frozen the OS in the user agent running in subsequent releases of macOS at 10.15.7 Catalina. It is also the last version of macOS to have the major version number of 10 its successor, Big Sur, released on November 12, 2020, is version 11. Catalina is the first version of macOS to support only 64-bit applications and the first to include Activation Lock. Announced at WWDC 2019 on Jand released to the public on October 7, 2019. It is the successor to macOS Mojave and was succeeded by macOS Big Sur. MacOS Catalina (version 10.15) is the sixteenth major release of macOS, Apple Inc.'s desktop operating system for Macintosh computers.