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Upgrade Mac Operating System

  1. Mac operating system upgrade

1. Mac operating system upgrade

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Mac OS is a proprietary operating system on Macbook computers developed and distributed by Apple Inc. The price of a Macbook is sky-high as opposed to a regular Windows operating system computer. Fortunately, if you have a Macbook already, you can update to the latest version of the operating system without paying any extra fees.

The upgrade of the Mac operating system provides you with enjoyable experience in new features of the operating system, but oftentimes, it is also mandatory. For example, if you are a programmer and work on something related to iOS, you have to install Xcode programming tool. There is no doubt that a new Xcode version requires a new Mac OS operating system.
The table below shows a list of Mac operating system versions and their release time.
Version
Codename
Release date
Rhapsody Developer Release
Grail1Z4 / Titan1U
August 31, 1997
Mac OS X Server 1.0
Hera
March 16, 1999
Mac OS X Developer Preview
Kodiak
March 16, 1999
Public Beta
Kodiak/Cheetah
September 13, 2000
Mac OS X 10.0
Cheetah
March 24, 2001
Mac OS X 10.1
Puma
September 25, 2001
Mac OS X 10.2
Jaguar
August 24, 2002
Mac OS X 10.3
Panther
October 24, 2003
Mac OS X 10.4
Tiger
April 29, 2005
Mac OS X 10.5
Leopard
October 26, 2007
Mac OS X 10.6
Snow Leopard
August 28, 2009
Mac OS X 10.7
Lion
July 20, 2011
OS X 10.8
Mountain Lion
July 25, 2012
OS X 10.9
Mavericks
October 22, 2013
OS X 10.10
Yosemite
October 16, 2014
OS X 10.11
El Capitan
September 30, 2015
macOS 10.12
Sierra
September 20, 2016
macOS 10.13
High Sierra
September 25, 2017
macOS 10.14
Mojave
September 24, 2018
macOS 10.15
Catalina
October 7, 2019
First thing first, you need to view the current Mac operating system version of your computer:
This is my current Mac OS version which needs renewing and upgrading.
Note: Before upgrading, I highly recommend that you should back up all of your valuable data to an external hard drive.
To upgrade, click the apple icon at the top right corner of the screen and select "System Preferences ...".
After being successfully downloaded, Mas OS is ready to be installed:
The best way is to use the Mac OSDisk Utility tool to divide your hard drive into 2 partitions, then install the new operating system onto the second partition, instead of installing it over the partition containing the current operating system. After the upgrade (installation) is complete, you now can remove the old operating system by formatting the Partition containing it.
Select the Partition that you want to install, then click Restart to kickstart the installation. Installing Mac OS is quite simple, and I believe you can do it without any additional instructions.
After the installation (upgrade) is complete, you now can log in Mac OS, then use Disk Utility to remove the outdated operating system.
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