Besides pushing out a PC Insider update as well as a cumulative bug fix for PC non-Insiders, Microsoft has shared a big of news regarding Windows 10 Mobile, Insider releases and future updates.

The new information is likely to cause a bit of a stir but is to be expected. Here is what you need to know:

• New Insider builds (presumably the RS1 Redstone release branch) will go to the Lumia 550, Lumia950 and Lumia 950 XL first and “expand from there as we release Windows 10 to other devices.”
• Windows 10 Mobile general updates for Windows Phone 8.1 hardware is still planned for “early this year” but there are no dates to share just yet

Expanding upon the general Windows 10 Mobile update, Gabriel Aul said the following:

“The team is working now by looking at data and reports from Insiders who have upgraded their devices to preview builds, and ensuring that we deliver a great upgrade experience to customers. We’re excited about making the upgrade available, and will share new information with you just as soon as we can on how the rollout will happen.”

Regarding OneCore (Microsoft’s term for a shared OS base), the company is prioritizing certain devices first, but moving all along the same path: