In addition to a massively expanded list of supported devices, the blog post notes that Microsoft is looking to increase the frequency at which Windows 10 builds will be released for phones.

The increase in frequency for Windows 10 releases for phones follows a similar path that Microsoft recently laid out for desktop builds. On the topic of the rollout to more phones, the blog post reiterates that the previous limited rollout was due to a partition size issue:

"As I wrote in the accompanying blog post, the reason for this is that we had to select from the set of phones that had sufficient system partition sizes configured by the manufacturer. This was necessary for us to be able to in-place upgrade the phones. I also talked about a feature we were working on called "partition stitching" that would allow us to re-size the system partition dynamically, allowing us to do the upgrade on a larger set of phones."

And Microsoft isn't joking about that larger number of phones. Without further ado, here's the full list of phones that are expected to be eligible for the next build of the Windows 10 Technical Preview for phones:

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 640

Lumia 720

Lumia 730

Lumia 730 Dual SIM

Lumia 735

Lumia 810

Lumia 820

Lumia 822

Lumia 830

Lumia 920

Lumia 925

Lumia 928

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

The blog post doesn't detail when the build will be available, but it does note that Microsoft likely has at least one more week of testing to go. In any event, this is great news for those that have been patiently awaiting another build, let alone the massive increase in supported devices.

Update: For those wondering why the Lumia 930 is not yet on the list, there is a bug causing the "wrong scaling factor is applied to UX, causing everything to be teeeeeeny tiny" according Microsoft's Gabriel Aul. The bug may be fixed by the time the next release is out, but for now, that is why it is missing.

Source: Microsoft