Android Lollipop, the latest version of Google's mobile operating system, has begun rolling out to users of its new Nexus 9 tablet.
The software, officially named last month after spending weeks in beta as Android L, will soon follow on other Nexus and Google Play devices.
Lollipop marks one of the biggest-ever changes to Android’s overall look.
Using Google’s new Material Design language, it aims to make everything look more uniform across smartphones, tablets and smartwatches, something the search giant has failed to manage in the past.
There are a slew of new features included too.
Email has been given an overhaul, while the core phone app has a much sleeker, easier to handle look. There’s a new kill switch feature for added security too.
Perhaps the biggest draw, however, is the boost to battery life.
Nexus devices are notorious for losing power quickly, so Lollipop brings a new timer for telling you how much power you have left and a feature to help you eke out an extra 90 minutes when you’re in a tight spot.
HTC has promised its flagship phones will receive Lollipop within 90 days of it receiving Google's code, while Sony has pledged its Xperia Z range will be getting in on the action from early 2015.
Samsung has delivered vague promises of a 2015 update too, although it’s unclear which devices will get the OS first.