Microsoft has released a new build of the Windows 10 Technical Preview for phones, and disclosed that the shipping code will not be delivered at the same time as Windows 10 for the PC. Instead, it is set to arrive sometime later in the year.

Announced this week, the new build adds support for further Lumia handsets and the beta of the new-look Windows Store, enabling testers to download software such as the Universal Office apps.

Writing on the Windows blog, Microsoft's head of the Windows Insider programme, Gabe Aul, broke the news that the phone version of Windows 10 will not arrive at the same as the PC version, which is expected by the end of July.

"Because we're treating Windows more like a service, this allows us to release Windows 10 on different devices and customers at different times. For phones, Windows 10 will arrive later this year - both on new devices and upgrades for existing Windows Phone 8.1 devices," he said.

Build 10080 of the Windows 10 Technical Preview for phones has been released to testers on the Windows Insider programme who have opted for the ‘fast ring', which delivers the latest updates that may not be as stable as ‘slow ring' updates delivered on a less frequent basis.