Microsoft opened up its Windows 10 Technical Preview to Windows Phone users last month, but only a scant few Lumia devices were supported. That's soon about to change. Microsoft has announced a second round of devices that will be able to run the very latest builds of Windows 10, and the good news is that the list has expanded considerably. The bad news is that there are still a few notable absences, including the Lumia 930 and any HTC Windows Phone devices.

Lumia 930 not yet supported

Of course, you should still sit down for a minute and consider if you really want to install the Windows 10 Technical Preview on your phone. If your Windows Phone is your daily driver, it's probably not a good idea — the operating system is still rough around the edges. Dual-SIM features are still severely lacking, and Messaging lacks, search, message drafts, voice notes, spam filters, support for multiple attachments, and other features. In addition, Cortana only speaks English and Internet Tethering will break your phone if you don't turn it off before powering down your device.

The next Windows 10 build will likely come out next week — below is the preliminary list of all the devices it will support.

Lumia 1020

Lumia 1320

Lumia 1520

Lumia 520

Lumia 525

Lumia 526

Lumia 530

Lumia 530 Dual Sim

Lumia 535

Lumia 620

Lumia 625

Lumia 630

Lumia 630 Dual Sim

Lumia 635

Lumia 636

Lumia 638

Lumia 720

Lumia 730

Lumia 730 Dual SIM

Lumia 735

Lumia 810

Lumia 820

Lumia 822

Lumia 830

Lumia 920

Lumia 925

Lumia 928

Lumia ICON

Microsoft Lumia 430

Microsoft Lumia 435

Microsoft Lumia 435 Dual SIM

Microsoft Lumia 435 Dual SIM DTV

Microsoft Lumia 532

Microsoft Lumia 532 Dual SIM

Microsoft Lumia 640 Dual SIM

Microsoft Lumia 535 Dual SIM

Correction: The Rooms feature has been discontinued on Windows Phone and will not be supported in Windows 10. You will lose access to your Rooms chat history if you upgrade. An earlier version of this article implied that support in Windows 10 was still in development — we regret the error.