Where to download the official New & Old macOS versions?

        The version of macOS that came with your Mac is the earliest version it can use. For example, if your Mac came with macOS Big Sur, it can't use macOS Catalina or earlier. If a macOS isn't compatible with your device, the App Store or installer will let you know. If you try to install a macOS that's older than the version currently installed, the installer will say that it's too old to be opened on this version of macOS.

macOS 12

​macOS monterey
Release date: OCT 25, 2021
Computable devices: -

• MacBook (Early 2016 or newer)
• MacBook Air (Early 2015 or newer)
• MacBook Pro (Early 2015 or newer)
• Mac mini (Late 2014 or newer)
• iMac (Late 2015 or newer)
• iMac Pro (2017 or newer)
• Mac Pro (Late 2013 or newer)

Download macsOS Monterey

From APP Store.

macOS 10.14

​macOS Mojave
Release date: SEP 24, 2018
Computable devices: -

• MacBook (Early 2015 or newer)
• MacBook Air (Mid 2012 or newer)
• MacBook Pro (Mid 2012 or newer)
• Mac mini (Late 2012 or newer)
• iMac (Late 2012 or newer)
• iMac Pro (2017)
• Mac Pro (Late 2013 or newer; Mid 2010 and Mid 2012 models).

Download macsOS Mojave

From APP Store.

OS X 10.11

​OS X El Capitan
Release date: SEP 30, 2015
Computable devices: -

• MacBook (Late 2008 Aluminum, or Early 2009 or newer)
• MacBook Pro (Mid/Late 2007 or newer)
• MacBook Air (Late 2008 or newer)
• Mac mini (Early 2009 or newer)
• iMac (Mid 2007 or newer)
• Mac Pro (Early 2008 or newer)
• Xserve (Early 2009)

Download OS X El Capitan

From Apple website.

OS X 10.8

​OS X Mountain Lion
Release date: July 25, 2012
Computable devices: -

• MacBook (Late 2008 Aluminum, or Early 2009 or newer)
• MacBook Pro (Mid/Late 2007 or newer)
• MacBook Air (Late 2008 or newer)
• Mac mini (Early 2009 or newer)
• iMac (Mid 2007 or newer)
• Mac Pro (Early 2008 or newer)
• Xserve (Early 2009)

Download OS X Mountain Lion

From Apple website.

macOS 11

​macOS Big Sur
Release date: NOV 12, 2020
Computable devices: -

• MacBook (2015 or newer)
• MacBook Air (2013 or newer)
• MacBook Pro (Late 2013 or newer)
• Mac mini (2014 or newer)
• iMac (2014 or newer)
• iMac Pro (2017)
• Mac Pro (2013 or newer)

Download macsOS Big Sur

From APP Store.

macOS 10.13

​macOS High Sierra
Release date: SEP 25, 2017
Computable devices: -

• MacBook (Late 2009 or newer)
• MacBook Pro (Mid 2010 or newer)
• MacBook Air (Late 2010 or newer)
• Mac mini (Mid 2010 or newer)
• iMac (Late 2009 or newer)
• Mac Pro (Mid 2010 or newer)

Download macsOS High Sierra

From APP Store.

OS X 10.10

​OS X Yosemite
Release date: OCT 16, 2014
Computable devices: -

• MacBook (Late 2008 Aluminum, or Early 2009 or newer)
• MacBook Pro (Mid/Late 2007 or newer)
• MacBook Air (Late 2008 or newer)
• Mac mini (Early 2009 or newer)
• iMac (Mid 2007 or newer)
• Mac Pro (Early 2008 or newer)
• Xserve (Early 2009)

Download OS X Yosemite

From Apple website.

OS X 10.7

​Mac OS X Lion
Release date: July 20, 2011
Computable devices: -

• Intel Macs (64-bit)
• Rosetta support dropped from 10.7 and newer.
  

Download Mac OS X Lion

From Apple website.

macOS 10.15

​macOS Catalina
Release date: October 7, 2019
Computable devices: -

• MacBook (Early 2015 or newer)
• MacBook Air (Mid 2012 or newer)
• MacBook Pro (Mid 2012 or newer)
• Mac mini (Late 2012 or newer)
• iMac (Late 2012 or newer)
• iMac Pro (2017)
• Mac Pro (Late 2013 or newer)

Download macsOS Catalina

From APP Store.

macOS 10.12

​macOS Sierra
Release date: SEP 20, 2016
Computable devices: -

• MacBook (Late 2009 or newer)
• MacBook Pro (Mid 2010 or newer)
• MacBook Air (Late 2010 or newer)
• Mac mini (Mid 2010 or newer)
• iMac (Late 2009 or newer)
• Mac Pro (Mid 2010 or newer)

Download macsOS Sierra

From Apple website.

OS X 10.9

​OS X Mavericks
Release date: OCT 22, 2013
Computable devices: -

• MacBook (Late 2008 Aluminum, or Early 2009 or newer)
• MacBook Pro (Mid/Late 2007 or newer)
• MacBook Air (Late 2008 or newer)
• Mac mini (Early 2009 or newer)
• iMac (Mid 2007 or newer)
• Mac Pro (Early 2008 or newer)
• Xserve (Early 2009)

Download macsOS Mavericks

you can follow these steps to get the installer.