You can download OS X El Capitan 10.11.6 here: Download OS X El Capitan You can download macOS High Sierra 10.13.6 here: Get macOS High Sierra You can download macOS Catalina 10.15.3 here: Get macOS Catalina Be careful downloading update files from other sources. The Mac App Store is the best, and usually only, place to download macOS updates. Download the update from the App Store.If your Mac isn't supported still, you could still upgrade to OS X El Capitan. If your Mac doesn't support macOS Catalina, it might be supported by macOS High Sierra, which requires a Mac introduced in 2009 or 2010. The latest version of macOS, macOS Catalina, is supported on any Mac introduced in 2012 or newer. Check what version of OS X or macOS your Mac supports.You'll need at least 8 to 22 GB of free storage space to upgrade to a newer version of OS X or macOS. Make sure that you have enough storage available for a software update.To see if your system is compatible, click the Apple icon on at the top left of your screen, select About This Mac and click More Info.

MacBooks released as far back as 2007 support OS X 10.11.4, which requires 2GB of RAM, 8.8GB of available storage and OS X 10.6.8 or later. Since some of the vulnerability fixes are available to systems running OS X El Capitan, we recommend users update to that version if they can. To make sure your Mac's security is up to date, click the Apple logo in the upper right corner, select App Store and tap Updates. Now you can play these images and see what happened in the moments before and after they were captured.

If you've been receiving Live Photos shot by your friends that wouldn't animate, this revision to OS X adds another welcome feature: support for those images in AirDrop and Messages. The new version of the operating system also enables users to import Evernote files into the Notes app. OS X users who use Notes as their primary app for writing quick documents will also want to update to 10.11.4, which adds password-protection and sorting features to the program.

Users who connect their Macs to external audio speakers over USB will also want to install this update, which should fix 'an issue that caused USB audio devices to disconnect.' The update also 'improves the compatibility and reliability' with Apple USB-C multiple-port adapters.

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