![]() ![]() MacBook Pro: Mid 2012 or newer, Retina display not needed.Catalina requires 4 GB of memory, an increase over the 2 GB required by Lion through Mojave. It is possible to install Catalina on many older Macintosh computers that are not officially supported by Apple. This requires using a patch to modify the install image. News (only available for Australia, Canada, United Kingdom, and United States).Screenshot (succeeded Grab since Mojave)Ĭhanges System Catalyst Ĭatalyst is a new software-development tool that allows developers to write apps that can run on macOS, iOS and iPadOS.Apple demonstrated several ported apps, including Jira and Twitter (after the latter discontinued its macOS app in February 2018). System extensions avoid the problems of Kexts. There are 3 kinds of System extensions: Network Extensions, Endpoint Security Extensions, and Driver Extensions. System extensions run in userspace, outside of the kernel. ![]() Catalina will be the last version of macOS to support legacy system extensions. DriverKit Ī replacement for IOKit device drivers, driver extensions are built using DriverKit. ![]()
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