Mac OS Upgrades

High Sierra MacOS 10.13.6

is now out and represents the completion and refinement of work started with Sierra in converting much of the OS to compact machine code. It is quicker, more secure and more robust in an age when cyber-hacking is rife. It was released September 2017 and settled down nicely by December/January to be our current best operating system. It lays the groundwork for bigger changes down the line. It has some new features, a better Safari browser, improvements to Photos, Support for VR, but mainly consolidation

Sierra 10.12

was released September 2016 as a free upgrade through the Mac App Store and the first one branded under Mac OS instead of Mac OSX.
It was the first time Siri voice recognition and activation was integrated with Mac OS. In some ways it was a work in progress completed by High Sierra released a year later




El Capitan 10.11

was released in September 2015 and included many features to improve security, performance, design and usability of Mac OSX. Opening PDF files is 4 times faster, app switching and viewing mail is twice as fast and launching Apps is 40% faster. The maximum amount of memory that can be allocated to the graphics processor has been increased by 50% on the HD4000. It has new window management feature with split screen views. It supports Metal Apples graphic API for faster gaming, and moves from Open SSL to LibreSSL




Yosemite 10.10 is now out – and we instantly recognise a great improvement over Mavericks. In fact we recommend it as a solution to many previous issues.
Further refinement has arrived with upgrades to Mac OSX 10.10.1 and more recently to 10.10.2 cleaner cosmetically , minimal and intelligent




Mavericks 10.9 – though we are generally advising customers to delay a little installing it until all the testing and users suggestions are back in and the updates complete. This process usually takes a few weeks sometimes a few months. If Mavericks came on your new Mac don’t worry but older machines can have sometimes have quirky needs not always foreseen on day one of a new system release.


System Upgrades are generally a good idea…

The speed and stability of your computer can be often enhanced by the latest Mac OS upgrades. iTunes may be demanding a later OS for compatibility with your iPod or iPhone. Let us quote you on the cost of doing this – including the safe backing up of your files and apps, before reformating the drive and installing firmware and OS upgrades. Apple tends to drive the pace of operating system upgrades and it is advisable to not slip too far behind –  not more than 2 system numbers(10.6 – 10.8) is advisable.

mountainlion lion

Mountain Lion – MacOS 10.8

most stable system for
older machines

Lion – Mac OS 10.7

Needs minimum Core2Duo

snowleopard xearlier

Snow Leopard 10.6

Leopard Mac OS 10.5

Max sys for MBP 2Ghz CoreDuo

tiger Panther

Tiger MacOS 10.4

Panther MacOS 10.3


Mac OS X Original