Operating System Reviews

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Android Pie

Android 9.0 is already on some Android phones. Here's what you can expect when it comes to yours.

Android Oreo

Oreo doubles down on the nuts and bolts -- and speed.

Editors' Choice

OS X Mountain Lion

When you see what you get for your money, Mountain Lion surely qualifies as the best value upgrade ever. The built-in social networking tools and the greater organisation afforded by Notification Center are worth the money on their own. The fact you also get native dictation tools, iCloud Document Library and more glosses an already compelling proposition.

Apple iOS 9

If you own a recent Apple device, you'll want to make the jump to iOS 9: Better battery life, improved native apps and multitasking prowess on the latest iPad make this upgrade a no-brainer.

Nokia X Software Platform

Nokia sure tried hard to give us something new, but its mashup of Android, Windows Phone, and Asha gives its Nokia X phone limited powers and a nagging identity crisis.

Apple iOS 8.1

With the latest version of iOS and an NFC-equipped iPhone, you'll finally be able to pay for transactions with Apple Pay.

Ubuntu Touch

The new Ubuntu Touch operating system for phones and tablets blows away rivals Firefox OS and Tizen -- and it may even be better than iOS and Android.

Apple iOS 10

iOS 10 serves up plenty of useful quality of life improvements, but a few rough edges keep it from shining too brightly.

Microsoft Windows Me

Millennium is a great face-lift for Windows 98, but it's not a necessary upgrade. If you have technical difficulties or work with pictures or music, try the new OS. But if you're happy with Windows 98, stick with it.

Mac OS X 10.10 Yosemite

From new Continuity features to smaller, useful tweaks across core apps, Mac OS X Yosemite is a must download for Mac users.

Microsoft Windows 8.1 Update

With new functionality for the Start button and separate experiences for desktop and tablet users, the Windows 8.1 update finally gives people what they want.

Google Android 6.0 Marshmallow

Android 6.0 Marshmallow is out now. This is everything you need to know about Google's mobile operating system update.

Google Android L

Google gives us a preview of the future of its mobile operating system.

Google Android TV

Google is taking yet another shot at a living room software platform with Android TV, which runs on the upcoming Android L platform.

Mac OS X 10.9 Mavericks

As it's a free upgrade that gives you more apps, improved features across the board, and better performance, there is really no reason not to get Mavericks on your Mac.

Android Wear 2.0

With lots of new features, the LG Watch Sport and Style are the first to use the new software -- and it's promising.

Mac OS X 10.4 Tiger

Due in mid-2005, Apple's new Mac OS X 10.4 promises more than 200 features.

Apple macOS High Sierra

Unless you're really into Photos or have installed the iOS 11 beta, there's no FOMO by passing on the public beta of Apple's latest OS.

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