2019 ยท No longer updated

Download macOS Catalina 10.15

Catalina dropped support for 32-bit apps and split iTunes into the Music, TV and Podcasts apps. If you rely on old 32-bit software, use Mojave instead.

Official downloadIntel
Version
10.15
Released
7 October 2019
Latest build
10.15.8
Processors
Intel

How to get macOS Catalina 10.15

Mac App Store

Official Apple listing. If the App Store won't open from a newer Mac, try the Terminal method.

Open in App Store

Full installer via Terminal

The Terminal method needs macOS Catalina or later on the Mac you're downloading from.

softwareupdate --fetch-full-installer --full-installer-version 10.15.7

Compatible Macs

MacBook (Early 2015 and later), MacBook Air (Mid 2012 and later), MacBook Pro (Mid 2012 and later), Mac mini (Late 2012 and later), iMac (Late 2012 and later), iMac Pro, Mac Pro (Late 2013 and later).

Apple's full compatibility list for macOS Catalina 10.15

Not sure which Mac you have? See which macOS your Mac can run.

Get help from Apple

Make a bootable USB installer

Once Install macOS Catalina.app is in your Applications folder, plug in a USB drive named MyVolume (it will be erased) and run:

sudo /Applications/Install\ macOS\ Catalina.app/Contents/Resources/createinstallmedia --volume /Volumes/MyVolume

Full walkthrough: How to create a bootable macOS USB installer.

What's new in macOS Catalina

  • 64-bit apps only; 32-bit apps no longer open
  • iTunes replaced by Music, TV and Podcasts
  • Sidecar: use an iPad as a second display
  • Read-only system volume

Questions

Can I still download macOS Catalina 10.15 from Apple?

Yes. Apple still offers macOS Catalina 10.15 for free. The download methods above all link to Apple's own servers or the Mac App Store.

What is the latest version of macOS Catalina 10.15?

The final or latest build is 10.15.8, according to Apple's version list.

Which Macs can run macOS Catalina 10.15?

MacBook (Early 2015 and later), MacBook Air (Mid 2012 and later), MacBook Pro (Mid 2012 and later), Mac mini (Late 2012 and later), iMac (Late 2012 and later), iMac Pro, Mac Pro (Late 2013 and later).