Microsoft has today killed off Windows Phone during its Windows 10 keynote, announcing that their new platform, Windows 10 will be available for all devices as a free upgrade to those who are running Windows Phone 8.1, Windows 7 or Windows 8.1 on a device.

To do this Microsoft will be tailoring the OS differently depending on the device you have, bringing more or less the same design to Windows Phone, but allowing tablets to access both a desktop and a tablet mode for 2-in-1s, as well as the Xbox One and various wearables.

This will mean that developers will be able to develop something called a Universal app, which allows the developer to create apps that will be runnable on a variety of devices.

The free upgrade will be available to all of those who have one of the aforementioned systems for an entire year after Windows 10 official release date.

As of yet no release date for Windows 10 has been announced.

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