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Microsoft Windows 10Ĭompare this to prices from £55.00 for Microsoft’s Windows 10 operating system, and any upgrade to OS X is a bargain.

Microsoft Windows 8Ĭompare this to £99.99 for Microsoft’s Windows 8 operating system, and any upgrade to macOS is a bargain. The second version macOS, High Sierra is a free upgrade to existing Mac users of any version of the operating system since 2010's OS X Lion 10.7.5. The first version of OS X now titled as macOS, Sierra is a free upgrade to existing Mac users of any version of the operating system since 2010's OS X Lion 10.7.5. OS X 10.11 El Capitan, following on from Mavericks and Yosemite, is to be offered as a free upgrade for existing Mac users of any OS X version from 10.6.7 Snow Leopard onwards. OS X 10.10 Yosemite, following on from Mavericks, is to be offered as a free upgrade for existing Mac users of any OS X version from 10.6.7 Snow Leopardonwards. OS X 10.9 Mavericks was only available as an upgrade through the Mac App Store and was offered as a nil-cost upgrade to Apple OS X users as far back as OS X 10.6 Snow Leopard. OS X 10.8 Mountain Lion was only available as an upgrade through the Mac App Store and cost £13.99 in the UK. OS X 10.7 LionĪpple stopped supplying DVDs with the release of OS X 10.7 Lion (though it was available for a short time on a USB drive) and cost £20.99 in the UK, preferring a download delivery model via the new Mac App Store, instead. Way back in October 2009, OS X 10.6 Snow Leopard was delivered via DVD and cost £25 in the UK when launched. In this tutorial, I'll show you what you will need to do to ensure that a Mac is ready for upgrade, from macOS 10.12 Sierra, or earlier, to macOS 10.13 High Sierra following its release on 25th September 2017.īelow is listed the comparative upgrade costs for previous versions of OS X and the recent versions of Microsoft Windows. Following on from OS X 10.9 Mavericks, 10.10 Yosemite, 10.11 El Capitan and macOS 10.12 Sierra, it continues with the new naming convention of locations in California. This is the fifth in a departure from the previous naming of operating systems after big cats, and the second since the operating system was renamed from OS X to macOS. Apple announced High Sierra the latest version of it’s macOS operating system, numbered 10.13, was announced on 5th June 2017 at Apple's Worldwide Developer Conference (WWDC).