Microsoft’s Gabriel Aul today tweeted that the company could be releasing Windows 10 Mobile Build 10572 to Insiders sometime soon. Gabe states that Build 10572 still has that bug which requires Insiders to go back to Windows Phone 8.1 to be able to upgrade to the latest build of Windows 10 Mobile. However, the company has fixed this issue in Build 10575 which will take a little while to come to Insiders.
Hey #, I have a poll for you this morning. We have fixed the Mobile build to build upgrade bug that required the reflash to 8.1 so you could install 10549. It’s fixed in build 10575 and newer. BUT, it will take a few more days to go all the way through our rings. But we have a pretty excellent build in-hand (new features, lots of fixes, improved battery, etc.) It is build 10572. So it doesn’t have the build to build upgrade bug fixed in it. Here’s the question: Should we release it as a Fast ring flight? You’d have to go back to 8.1 again to take it, but you could also choose to just sit it out and wait a few days for 10575. Let us know what you’d like us to do by going here: strw.pl/5e9637f6
Update: Build 10572 will roll out soon: