Mac OS X 10.0
Date: March 24th, 2001
Steve Jobs famously said “We made the buttons on the screen look so good, you’ll want to lick them,” when describing the new Aqua User Interface with the release of Mac OS X. While we may not have licked them, they were certainly new, fresh and good to look at.
Mac OS X 10.1
Date: September 25th, 2001
Less of a functional update with Puma, and more of a performance enhancement. Puma introduced better handling of optical disc burning, file management and improved responsiveness throughout.
Mac OS X 10.2
Date: August 23rd, 2002
The release of Jaguar saw a new Apple logo, the large grey version, better search functionality, and Universal Access. iChat and the Address Book were also introduced with this version.
Mac OS X 10.3
Date: October 24th, 2003
We saw Safari becoming the default internet browser with the launch of Panther, alongside Exposé and some much-needed performance enhancements.
Mac OS X 10.4
Date: April 29th, 2005
One of our favourite new versions of Mac OS X, this. Tiger was a hefty release with over 200 new features, including Apple TV, Spotlight and Dashboard.
Mac OS X 10.5
Date: October 26th, 2007
Leopard was a long time coming, but when it did it brought with it one of the most impressive leaps in desktop technology. Time Machine, Boot Camp and full 64-bit support were all introduced in 2007’s OS.
Mac OS X 10.6
Codename: Snow Leopard
Date: August 28th, 2009
Another two years apart, and Snow Leopard brought us the Mac App Store, 64-bit apps and many more refinements that make it an excellent upgrade for those wanting more from their Macs.
Mac OS X 10.7
Date: July 20th, 2011
Apple adopts this whole cloud thing back in 2011, with the introduction of the iCloud alongside a number of refinements, performance enhancements and core OS improvements.
Mac OS X 10.8
Codename: Mountain Lion
Date: July 25th, 2012
Despite the fact that the world was set to end in 2012, it didn’t stop Apple from adding a lot of enhancements to 2011’s Lion. This is one of the first OS X versions to start integrating iOS perks.
Mac OS X 10.9
Date: October 22nd, 2013
The first OS X not to be named after a big cat, instead a surfing location in North California, Mavericks introduced Maps, iBooks, and iCloud Keychain encryption technology.
Mac OS X 10.10
Date: October 16th, 2014
Yosemite was an impressive upgrade, with a new sleek look and design that’s paved the way for better iOS and OS X interaction – which culminates eventually with Big Sur.
Mac OS X 10.11
Codename: El Capitan
Date: September 30th, 2015
Various improvements introduced with El Capitan, including dual-window functionality and Split Views alongside an upgraded Safari, Mail and other apps.
Date: September 20th, 2016
Many see Sierra as the version that finally killed of OS X, since the OS is no longer referred to as Mac OS X, and is from this point on, known as macOS. Siri is introduced with this version and support for the Apple Watch.
Codename: High Sierra
Date: September 25th, 2017
High Sierra was more of a performance improvement rather than an upheaval of the apps. The main reason for the increase in speed in the OS is down to the use of the Apple Fie System and video standard HEVC.
Date: September 24th, 2018
Dark Mode and Dynamic Desktop are the two main updates on everyone’s lips with the release of Mojave. Visual improvements aside, we also see some iOS apps being migrated across in the form of News, Home, Voice Memos and more.
Date: October 7th, 2019
Catalina put the cat among the pigeons with Apple’s dropping of 32-bit apps. However, the move proved to be a good one in the long run, with better performance throughout.